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1.
Tuberculosis (Edinb) ; 136: 102244, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-36007338

RESUMO

Post Tuberculosis Lung Disease (PTLD) affects millions of tuberculosis survivors and is a global health burden. The immune mechanisms that drive PTLD are complex and have historically been under investigated. Here, we discuss two immune-mediated paradigms that could drive human PTLD. We review the characteristics of a fibrotic granuloma that favors the development of PTLD via an abundance of T-helper-2 and T-regulatory cells and an upregulation of TGF-ß mediated collagen deposition. Next, we discuss the post-primary tuberculosis paradigm and the complex mixture of caseous pneumonia, cavity formation and fibrosis that can also lead to PTLD. We review the delicate balance between cellular subsets and cytokines of the innate and adaptive immune system in conjunction with host-derived proteases that can perpetuate the parenchymal lung damage seen in PTLD. Next, we discuss the role of novel host directed therapies (HDT) to limit the development of PTLD and in particular, the recent repurposing of established medications such as statins, metformin and doxycycline. Finally, we review the emerging role of novel imaging techniques as a non-invasive modality for the early recognition of PTLD. While access to computed tomography imaging is unlikely to be available widely in countries with a high TB burden, its use in research settings can help phenotype PTLD. Due to a lack of disease-specific biomarkers and controlled clinical trials, there are currently no evidence-based recommendations for the management of PTLD. It is likely that an integrated antifibrotic strategy that could simultaneously target inflammatory and pro-fibrotic pathways will probably emerge as a successful way to treat this complex condition. In a disease spectrum as wide as PTLD, a single immunologic or radiographic marker may not be sufficient and a combination is more likely to be a successful surrogate that could aid in the development of successful HDTs.


Assuntos
Inibidores de Hidroximetilglutaril-CoA Redutases , Pneumopatias , Metformina , Mycobacterium tuberculosis , Tuberculose , Biomarcadores , Colágeno/uso terapêutico , Misturas Complexas/uso terapêutico , Citocinas , Doxiciclina/uso terapêutico , Humanos , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Pulmão/diagnóstico por imagem , Metformina/uso terapêutico , Mycobacterium tuberculosis/genética , Peptídeo Hidrolases/uso terapêutico , Fator de Crescimento Transformador beta/uso terapêutico
2.
Environ Sci Pollut Res Int ; 29(45): 67981-67996, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35525893

RESUMO

Alzheimer's disease (AD) is a slowly progressive brain degenerative disorder which gradually impairs memory, thinking, and ability to perform easy routine tasks. This degenerative disorder mainly targets the elderly people and has imposed an endemic burden on society. Hence, there is a crucial need to investigate the efficacious herbal pharmacotherapies that can effectively mitigate and prevent the pathological hallmarks of AD. The current study aims to explore the potential efficacy of curcuminoid-rich extract (CRE) and its ternary complex (TC). Experimental rodents were administered with AlCl3 (300 mg/kg) to induce AD and treated with rivastigmine, curcuminoid crude extract, CRE, and TC orally for three consecutive weeks. Neurobehavioral, biochemical, and histopathological studies were performed from the last week of the study period. The mRNA expression of different pathological biomarkers was estimated by RT-qPCR analysis. The results of the study suggested that CRE and TC significantly improved the behavioral, biochemical parameters and acetylcholinesterase inhibitory activity in treatment groups. Histological analysis was also carried out indicating that the neurodegenerative changes and neuronal loss were stabilized by CRE and TC supplementation. CRE and TC supplementation remarkably downregulated the interleukin-1α, tumor necrosis factor-α, interleukin-1ß, acetylcholinesterase, and ß-secretase pathological gene expression. Hence, it was concluded that CRE and TC may act as promising candidates in the prevention of AD via numerous underlying signaling pathways.


Assuntos
Doença de Alzheimer , Fármacos Neuroprotetores , Acetilcolinesterase/metabolismo , Cloreto de Alumínio/toxicidade , Doença de Alzheimer/tratamento farmacológico , Secretases da Proteína Precursora do Amiloide/metabolismo , Secretases da Proteína Precursora do Amiloide/uso terapêutico , Animais , Biomarcadores/metabolismo , Misturas Complexas/uso terapêutico , Misturas Complexas/toxicidade , Diarileptanoides/uso terapêutico , Diarileptanoides/toxicidade , Modelos Animais de Doenças , Humanos , Interleucina-1alfa/uso terapêutico , Interleucina-1alfa/toxicidade , Interleucina-1beta/metabolismo , Fármacos Neuroprotetores/uso terapêutico , RNA Mensageiro , Rivastigmina/uso terapêutico , Rivastigmina/toxicidade , Fator de Necrose Tumoral alfa/metabolismo
3.
Mar Drugs ; 20(5)2022 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-35621931

RESUMO

The in vitro capacity of Ishige okamurae extract (IO) to improve impaired muscle function has been previously examined. However, the mechanism underlying IO-mediated muscle protein metabolism and the role of its component, Ishophloroglucin A (IPA), in mice with dexamethasone (Dexa)-induced muscle atrophy remains unknown. In the present study, we evaluated the effect of IO and IPA supplementation on Dexa-induced muscle atrophy by assessing muscle protein metabolism in gastrocnemius and soleus muscles of mice. IO and IPA supplementation improved the Dexa-induced decrease in muscle weight and width, leading to enhanced grip strength. In addition, IO and IPA supplementation regulated impaired protein synthesis (PI3K and Akt) or degradation (muscle-specific ubiquitin ligase muscle RING finger and atrogin-1) by modulating mRNA levels in gastrocnemius and soleus muscles. Additionally, IO and IPA upregulated mRNA levels associated with muscle growth activation (transient receptor potential vanilloid type 4 and adenosine A1 receptor) or inhibition (myostatin and sirtuin 1) in gastrocnemius and soleus muscle tissues of Dexa-induced mice. Collectively, these results suggest that IO and IO-derived IPA can regulate muscle growth through muscle protein metabolism in Dexa-induced muscle atrophy.


Assuntos
Misturas Complexas , Proteínas Musculares , Atrofia Muscular , Phaeophyceae , Animais , Benzofuranos , Misturas Complexas/farmacologia , Misturas Complexas/uso terapêutico , Dexametasona/efeitos adversos , Dioxinas , Camundongos , Proteínas Musculares/metabolismo , Músculo Esquelético/efeitos dos fármacos , Músculo Esquelético/metabolismo , Atrofia Muscular/induzido quimicamente , Atrofia Muscular/tratamento farmacológico , Atrofia Muscular/metabolismo , Phaeophyceae/metabolismo , RNA Mensageiro/metabolismo
4.
Mar Drugs ; 20(3)2022 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-35323474

RESUMO

The objective of the present study was to test whether a brown seaweed extract rich in polyphenols combined with a low-calorie diet would induce additional weight loss and improve blood glucose homeostasis in association with a metabolic and inflammatory response in overweight/obese prediabetic subjects. Fifty-six overweight/obese, dysglycemic, and insulin-resistant men and women completed a randomized, placebo-controlled, double-blind, and parallel clinical trial. Subjects were administrated 500 mg/d of either brown seaweed extract or placebo combined with individualized nutritional advice for moderate weight loss over a period of 12 weeks. Glycemic, anthropometric, blood pressure, heart rate, body composition, lipid profile, gut integrity, and oxidative and inflammatory markers were measured before and at the end of the trial. No effect was observed on blood glucose. We observed significant but small decreases in plasma C-peptide at 120 min during 2 h-OGTT (3218 ± 181 at pre-intervention vs. 2865 ± 186 pmol/L at post-intervention in the brown seaweed group; 3004 ± 199 at pre-intervention vs. 2954 ± 179 pmol/L at post-intervention in the placebo group; changes between the two groups, p = 0.002), heart rate (72 ± 10 at pre-intervention vs. 69 ± 9 (n/min) at post-intervention in the brown seaweed group; 68 ± 9 at pre-intervention vs. 68 ± 8 (n/min) at post-intervention in the placebo group; changes between the two groups, p = 0.01), and an inhibition in the increase of pro-inflammatory interleukin-6 (IL-6) (1.3 ± 0.7 at pre-intervention vs. 1.5 ± 0.7 pg/L at post-intervention in the brown seaweed group; 1.4 ± 1.1 at pre-intervention vs. 2.2 ± 1.6 pg/L at post-intervention in the placebo group; changes between the two groups, p = 0.02) following brown seaweed consumption compared with placebo in the context of moderate weight loss. Although consumption of brown seaweed extract had no effect on body weight or blood glucose, an early attenuation of the inflammatory response was observed in association with marginal changes in metabolic parameters related to the prevention of diabetes type 2.


Assuntos
Anti-Inflamatórios/uso terapêutico , Ascophyllum/química , Misturas Complexas/uso terapêutico , Fucus/química , Sobrepeso/tratamento farmacológico , Polifenóis/uso terapêutico , Estado Pré-Diabético/tratamento farmacológico , Alga Marinha/química , Adolescente , Adulto , Idoso , Glicemia/efeitos dos fármacos , Peptídeo C/sangue , Dieta com Restrição de Gorduras , Método Duplo-Cego , Feminino , Humanos , Insulina/sangue , Interleucina-6/sangue , Lipídeos/sangue , Masculino , Pessoa de Meia-Idade , Sobrepeso/sangue , Estado Pré-Diabético/sangue , Resultado do Tratamento , Redução de Peso/efeitos dos fármacos , Adulto Jovem
5.
Int J Mol Sci ; 22(18)2021 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-34576003

RESUMO

Noncommunicable diseases (NCD) and age-associated diseases (AAD) are some of the gravest health concerns worldwide, accounting for up to 70% of total deaths globally. NCD and AAD, such as diabetes, obesity, cardiovascular disease, and cancer, are associated with low-grade chronic inflammation and poor dietary habits. Modulation of the inflammatory status through dietary components is a very appellative approach to fight these diseases and is supported by increasing evidence of natural and dietary components with strong anti-inflammatory activities. The consumption of bioactive lipids has a positive impact on preventing chronic inflammation and consequently NCD and AAD. Thus, new sources of bioactive lipids have been sought out. Microalgae are rich sources of bioactive lipids such as omega-6 and -3 polyunsaturated fatty acids (PUFA) and polar lipids with associated anti-inflammatory activity. PUFAs are enzymatically and non-enzymatically catalyzed to oxylipins and have a significant role in anti and pro-resolving inflammatory responses. Therefore, a large and rapidly growing body of research has been conducted in vivo and in vitro, investigating the potential anti-inflammatory activities of microalgae lipids. This review sought to summarize and critically analyze recent evidence of the anti-inflammatory potential of microalgae lipids and their possible use to prevent or mitigate chronic inflammation.


Assuntos
Envelhecimento/efeitos dos fármacos , Misturas Complexas/uso terapêutico , Ácidos Graxos Ômega-3/uso terapêutico , Ácidos Graxos Ômega-6/uso terapêutico , Microalgas/química , Doenças não Transmissíveis/tratamento farmacológico , Misturas Complexas/química , Ácidos Graxos Ômega-3/química , Ácidos Graxos Ômega-6/química , Humanos , Inflamação/tratamento farmacológico
6.
Pak J Biol Sci ; 24(5): 579-587, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34486333

RESUMO

<b>Background and Objective:</b> Horseshoe crabs are widely used in both traditional and modern pharmaceutical applications. Most of the previous studies on horseshoe crabs focused on their blood which contains hemolymph and amoebocyte lysate. This study aimed to determine the potential antibacterial and antifouling properties of different extracts from the carapace and the book gills of <i>Carcinoscorpius rotundicauda</i>. <b>Materials and Methods:</b> The crude extracts were subjected to the bioactivity tests using the disc-diffusion and the inhibition of biofilm-formation measurement assays, for both the antibacterial and antifouling activities respectively. <b>Results:</b> The results obtained indicated that the carapace extracts had stronger antibacterial and antifouling effects compared to the book gills extracts. Extracts obtained from the male displayed more activity compared to the extracts from the female with a few exceptions. Methanol and acetone carapace crude extracts showed the best overall performance. A sterol compound was isolated from the carapace acetone extracts of the male of <i>C. rotundicauda</i>. However, the compound did not display strong activity compared to the crude extract. The compound might be contributing to the observed activity with other components through a synergistic effect. <b>Conclusion:</b> The presence of antibacterial and antifouling activities in the carapace and book gills extracts could be added to the complexity of the defence mechanisms of horseshoe crabs. The results of this study, therefore, may contribute to the knowledge of the defence mechanisms of <i>C. rotundicauda</i>. Further research is needed to determine the bioactivities of other parts of the animal and to explore their potential applications.


Assuntos
Misturas Complexas/farmacologia , Caranguejos Ferradura/enzimologia , Animais , Antibacterianos/farmacologia , Antibacterianos/uso terapêutico , Bioensaio/métodos , Misturas Complexas/uso terapêutico , Malásia , Testes de Sensibilidade Microbiana/métodos
7.
J Ethnopharmacol ; 281: 114517, 2021 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-34389445

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: In the traditional medicine system, plants have been utilized as a rich source of anti-microbial, anti-inflammatory, anti-cancer, anti-viral and anti-oxidant compounds. The biological properties of plant-based drugs depend on their interaction with endophytes which persist as an important provider of bioactive secondary metabolites. Bacterial endophytes secrete anti-inflammatory molecules whose activity can be the base for the anti-inflammatory property of the plant. AIM OF THE STUDY: During the screening of endophytes from Emilia sonchifolia, we isolated six different bacteria whose potential as the sources of anti-inflamamtory compounds have been aimed at in this study. MATERIALS AND METHODS: Anti-inflammatory activity of the ethyl acetate extract of endophytes was studied by both in vitro and in vivo analyses. In vitro study was done using protein denaturation, COX, LOX, iNOS, myeloperoxidase and nitric oxide assays and in vivo analysis was carried out by carrageenan-induced and formalin-induced paw oedema tests. The expression level of anti-inflammatory genes such as COX-2 and NfKb was confirmed by real time PCR. RESULTS: We confirmed anti-inflammatory activity of the ethyl acetate extract of bacterial endophytes of E sonchifolia by both in vitro and in vivo experiments. Carrageenan- and formalin-induced inflammations in mice were effectively reduced by the administration of the bacterial extract. Among the isolates, strain ES1effectively reduced inflammation. Gene expression studies confirmed reduction in the expression of COX-2 and NfKb genes in the presence of ES1 extract. CONCLUSION: The present investigation demonstrated the anti-inflammatory property of the isolated bacterial endophyte ES1 (Bacillus subtilis strain-MG 692780) and thus justifies the possible role of endophytes in contributing anti-inflammatory property to E sonchifolia which is ethno-botanically important as a source of anti-inflammatory drug.


Assuntos
Anti-Inflamatórios/uso terapêutico , Asteraceae/microbiologia , Bacillus subtilis/química , Misturas Complexas/uso terapêutico , Edema/tratamento farmacológico , Endófitos/química , Acetatos/química , Animais , Anti-Inflamatórios/farmacologia , Carragenina , Misturas Complexas/farmacologia , Edema/induzido quimicamente , Formaldeído , Interleucina-6/metabolismo , Lipoxigenase/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos BALB C , NF-kappa B/genética , Peroxidase/metabolismo , Prostaglandina-Endoperóxido Sintases/genética , Prostaglandina-Endoperóxido Sintases/metabolismo , Células RAW 264.7 , Solventes/química , Fator de Necrose Tumoral alfa/metabolismo
8.
J Ethnopharmacol ; 281: 114539, 2021 Dec 05.
Artigo em Inglês | MEDLINE | ID: mdl-34428522

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Clinical trials have demonstrated that Trametes robinophila Murr (Huaier granule) can inhibit recurrence and metastasis after hepatocellular carcinoma (HCC) resection, but its efficacy as an adjuvant therapy after thermal ablation of early HCC is unknown. AIM OF THE STUDY: To analyze the prognostic value and side effects of Huaier granules in HCC patients undergoing thermal ablation. MATERIALS AND METHODS: Clinical information from 340 eligible subjects with early-stage HCC who were admitted to our department from September 1, 2008 to January 1, 2019 was extracted from the electronic medical record database. They were divided into the thermal ablation + TCM group and the thermal ablation group. Differences in their overall survival (OS), progression-free survival (PFS), extrahepatic metastatic rate (EMR), and therapeutic side effects (TSEs) between the two groups were compared. Beneficiaries of the integrated treatment and adequate treatment length were predicted. RESULTS: The median follow-up was 32.5 months (range 2-122 months). The 1-year, 3-year and 5-year OS rates in the integrated treatment group and the control group were 93.2% vs. 92.6%, 54.5% vs. 51.4%, 23.5% vs. 19.7% (p = 0.110, HR 0.76(0.54-1.07)). The 1-year, 3-year and 5-year PFS rates were 78.8% vs. 69.4%, 50.6% vs. 40.6%, 35.3% vs. 26.5%, respectively (p = 0.020, HR 0.67(0.48-0.94)). The median OS (35 vs. 31 months) and PFS (24 vs. 12.5 months) were longer in the integrated treatment group. The EMR in the integrated treatment group was significantly lower than that in the control group (p = 0.018, HR 0.49 (0.27-0.89)). Patients with any two of the following three factors might be predicted to be beneficiaries of the integrated treatment, including younger than 65 years (p =0.039, HR 0.70 (0.50-0.98)), single tumor (p = 0.035, HR 0.70 (0.50-0.98), and tumor size ≤3 cm (p = 0.029, HR 0.69 (0.50-0.96). Patients with continuous oral administration of TCM following ablation had a lower probability of recurrence and metastasis within 2 years (p = 0.015, HR 0.67 (0.49-0.93)). Although the integrated treatment group reported a higher incidence of nausea and emesis, there were no significant differences between the two groups. CONCLUSION: TCM following ablation may prolong PFS and suppress recurrence in patients with HCC, with continuous oral administration for more than 2 years maybe experience a greater benefit. The TSEs of the treatment are mild and can be tolerated.


Assuntos
Carcinoma Hepatocelular/tratamento farmacológico , Cauterização , Misturas Complexas/uso terapêutico , Neoplasias Hepáticas/tratamento farmacológico , Recidiva Local de Neoplasia/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antivirais/administração & dosagem , Antivirais/uso terapêutico , Carcinoma Hepatocelular/cirurgia , Estudos de Coortes , Feminino , Humanos , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Trametes
9.
J Ethnopharmacol ; 274: 114081, 2021 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-33798660

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Chaga mushrooms (Inonotus obliquus) are commonly used in traditional treatments in Eastern Europe and Asia due to their diverse pharmacological effects, including anti-tumor and immunologic effects. Thus, many cancer patients take Chaga mushrooms as a complementary medicine, even during chemotherapy or radiotherapy. However, few studies have investigated the effects or molecular targets of Chaga mushrooms in breast cancer. AIM OF THE STUDY: Herein, we examined the anticancer effects of Chaga mushrooms in different types of breast cancer cell lines, and explored the underlying molecular mechanism to better understand their effects and benefits. MATERIALS AND METHODS: Chaga mushroom extract (CME) was prepared by extracting Chaga mushrooms with 70% ethanol. The cytotoxic effects of CME were assessed by MTT assay and protein expressions were evaluated by western blotting. To evaluate in vivo anti-tumor effects of CME, CME (2 g/kg) was orally administered to 4T1 tumor-bearing BALB/c mice every other day over 30 days (15 administrations), and tumor sizes were measured. Silica gel column chromatography was used to fractionate CME, and major constituents responsible for cytotoxic effects of CME were identified by 1H/13C-NMR and LC-MS. RESULTS: CME inhibited the proliferation of 4T1 mouse breast cancer cells in a dose and time-dependent manner. The expression of LC3 and phosphorylation of AMPK were increased by CME, while the phosphorylation of mTOR, S6, and S6K1 were suppressed, suggesting that CME induced autophagy by activating AMPK and inhibiting mTOR signaling pathways. Consistent with its observed cytotoxic effect in vitro, CME effectively suppressed tumor growth in 4T1 tumor-bearing BALB/c mice. In addition, inotodiol and trametenolic acid were identified as the major constituents responsible for the cytotoxic effects of CME on breast cancer cells. Moreover, inotodiol and trametenolic acid-enriched fractions both exhibited cytotoxic effects regardless of breast cancer cell subtypes and did not interfere with the cytotoxic effects of conventional drugs. CONCLUSIONS: Taken together, Chaga mushroom extract induced autophagy by activating AMPK and inhibiting the mTOR signaling pathway. Our data suggest Chaga mushrooms may be a beneficial complementary medicine for breast cancer patients.


Assuntos
Agaricales , Antineoplásicos/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Misturas Complexas/uso terapêutico , Proteínas Quinases Ativadas por AMP/metabolismo , Animais , Antineoplásicos/química , Antineoplásicos/farmacologia , Autofagia/efeitos dos fármacos , Neoplasias da Mama/metabolismo , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Misturas Complexas/química , Misturas Complexas/farmacologia , Feminino , Humanos , Lanosterol/análogos & derivados , Lanosterol/análise , Lanosterol/farmacologia , Camundongos Endogâmicos BALB C , Transdução de Sinais/efeitos dos fármacos , Serina-Treonina Quinases TOR/metabolismo , Triterpenos/análise , Triterpenos/farmacologia
10.
Med Sci Monit ; 27: e929438, 2021 Apr 14.
Artigo em Inglês | MEDLINE | ID: mdl-33850093

RESUMO

BACKGROUND Hepatic stellate cells (HSCs) play a vital role in hepatic fibrogenesis. Our recent clinical study indicated that the Zi Qi decoction, a Traditional Chinese Medicine formula, exhibited good efficacy in alleviating liver fibrosis, but the underlying mechanism remains elusive. MATERIAL AND METHODS Rats repeatedly injected with CCl4 and cells stimulated with lipopolysaccharide were used as in vivo and in vitro models for liver fibrosis, respectively. The viability of LX-2 cells was evaluated with MTT assay. Relative messenger RNA (mRNA) expression of representative extracellular matrix (ECM) components was detected with real-time quantitative polymerase chain reaction (RT-qPCR). Moreover, total and phosphorylation levels of ECM proteins and pathway-related proteins were detected with western blotting. Immunofluorescent staining was used to show the nuclear translocation of nuclear factor kappa b (NF-kappaB) p65. Hematoxylin & eosin (H&E) and Masson trichrome staining and immunohistochemistry were performed to evaluate the extent of liver fibrosis. The levels of alanine transaminase (ALT), aspartate transaminase (AST), gamma-glutamyl transpeptidase (GGT), Hyp, tumor necrosis factor-alpha (TNF-alpha), and interleukin-6 (IL-6) were tested with an enzyme-linked immunosorbent assay. In addition, 7.0T micro-magnetic resonance imaging (micro-MRI) was used to evaluate the severity of hepatic damage. RESULTS The Zi Qi decoction inhibited lipopolysaccharide-mediated upregulation of mRNA and protein levels of representative ECM proteins both in vivo and in vitro. The Zi Qi decoction also suppressed activation of the Toll-like receptor 4 (TLR4)-related NF-kappaB signaling pathway and subsequently inhibited the nuclear translocation of activated NF-kappaB. Moreover, another TLR4 downstream pathway, mitogen-activated protein kinase (MAPK), was simultaneously restrained. The results of liver pathology and MRI in rat models also suggested the efficacy of the Zi Qi decoction in attenuating liver damage. CONCLUSIONS The Zi Qi decoction inhibited liver fibrosis by inhibiting the TLR4-related NF-kB and MAPK signaling pathways and preventing activation of HSCs.


Assuntos
Misturas Complexas/uso terapêutico , Medicamentos de Ervas Chinesas/uso terapêutico , Células Estreladas do Fígado/fisiologia , Cirrose Hepática/terapia , Fígado/metabolismo , Alanina Transaminase/metabolismo , Animais , Aspartato Aminotransferases/metabolismo , Citocinas/metabolismo , Mediadores da Inflamação/metabolismo , Fígado/patologia , Sistema de Sinalização das MAP Quinases , Masculino , Medicina Tradicional Chinesa , NF-kappa B/metabolismo , Ratos , Ratos Sprague-Dawley , Receptor 4 Toll-Like/metabolismo
11.
Pharmacol Res ; 165: 105411, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33401002

RESUMO

The incidence rate of adenocarcinoma of the esophagogastric junction (AEG) is increasing worldwide with poor prognosis and unclear pathogenesis. Trametes robiniophila Murr. (Huaier), a traditional Chinese medicine has been used in the clinical treatment of a variety of solid tumors, including AEG. However, its anticancer components and molecular mechanisms are still unclear. In our previous studies, we have found that Huaier n-butanol extract (HBE) shows the most potent anticancer activity among different extracts. In the present study, we aimed to investigate the clinical relevance of p-MEK expression in AEG patients and the role of the MEK/ERK signaling pathway in the anti-AEG efficacy of HBE in vitro and in vivo. We herein demonstrate that p-MEK expression in AEG tissues was significantly higher than that in paracancerous tissues and correlated with a poor prognosis in AEG patients. We further found that HBE inhibited the colony formation, migration, and invasion in AEG cell lines in a concentration-dependent manner in vitro. HBE also suppressed the growth of AEG xenograft tumors without causing any host toxicity in vivo. Mechanistically, HBE caused the inactivation of the MEK/ERK signaling pathway by dephosphorylating MEK1 at S298, ERK1 at T202, and ERK2 at T185 and modulating the expression of EMT-related proteins. In summary, our results demonstrate that the high expression of p-MEK may be an independent factor of poor prognosis in patients with AEG. The clinically used anticancer drug Huaier may exert its anti-AEG efficacy by inhibiting the MEK/ERK signaling pathway.


Assuntos
Adenocarcinoma/diagnóstico , Antineoplásicos/uso terapêutico , Misturas Complexas/uso terapêutico , Neoplasias Esofágicas/diagnóstico , Junção Esofagogástrica , MAP Quinase Quinase Quinases/metabolismo , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Neoplasias Gástricas/diagnóstico , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/metabolismo , Idoso , Idoso de 80 Anos ou mais , Linhagem Celular Tumoral , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Esofágicas/metabolismo , Junção Esofagogástrica/metabolismo , Humanos , Masculino , Prognóstico , Neoplasias Gástricas/tratamento farmacológico , Neoplasias Gástricas/metabolismo , Análise Serial de Tecidos , Trametes , Resultado do Tratamento
12.
Int J Med Sci ; 18(4): 1015-1023, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33456359

RESUMO

Huaier extract, the main active constituent proteoglycan, has anti-tumor activity in various experimental and clinical settings. However, the potential anti-neuroblastoma and associated mechanisms have not been investigated. Therefore, in this study, we aimed to elucidate the potential role of Huaier extract in 3 human neuroblastoma cell lines. Our study demonstrated that incubation with Huaier extract resulted in a marked decrease in cell viability in a dose-dependent manner. Huaier extract induced cell cycle arrest at G0/G1 phase in neuroblastoma and decreased the cell cycle related protein expression of cyclin D3. Western blotting analysis also showed that Huaier extract induced neuroblastoma cell apoptosis and autophagy. Signaling analysis indicated that Huaier extract suppressed the MEK/ERK and mTOR signaling pathways simultaneously. In conclusion, we verify that Huaier extract causes cell proliferation inhibition, apoptosis, autophagy, and cell cycle arrest in G0/G1 phase via MEK/ERK and mTOR signaling. Huaier extract may act as a complementary agent for treating neuroblastoma.


Assuntos
Misturas Complexas/farmacologia , Neuroblastoma/tratamento farmacológico , Apoptose/efeitos dos fármacos , Autofagia/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Misturas Complexas/isolamento & purificação , Misturas Complexas/uso terapêutico , Relação Dose-Resposta a Droga , Ensaios de Seleção de Medicamentos Antitumorais , Pontos de Checagem da Fase G1 do Ciclo Celular/efeitos dos fármacos , Humanos , Sistema de Sinalização das MAP Quinases/efeitos dos fármacos , Neuroblastoma/patologia , Serina-Treonina Quinases TOR/metabolismo , Trametes/isolamento & purificação
13.
Zhongguo Shi Yan Xue Ye Xue Za Zhi ; 28(5): 1451-1458, 2020 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-33067936

RESUMO

OBJECTIVE: To investigate the proliferation inhibition and pro-apoptotic effect of Huaier aqueous extract combined with routine chemotherapeutic drugs including Vincristine (VCR), Daunorubicin (DNR), L-aspartase (L-Asp) on human acute lymphoblastic leukemia cell lines Nalm-6 and Sup-B15. METHODS: Nalm-6 and Sup-B15 cell lines were treated with different concentrations of Huaier aqueous extract and chemotherapeutics including VCR, DNR, L-Asp alone or in combination for 48 h, and the growth inhibitory effect and IC50 values (the half maximal inhibitory concentration) were detected by CCK-8. Jin's formula was used to estimated the synergistic effect of these combinations. Apoptosis rates of Nalm-6 and Sup-B15 cells and expression of apoptosis-related proteins BAX, BCL-2, cleaved Caspase-3 were determined by flow cytometry and Western blot respectivcly. RESULTS: Huaier aqueous extract, VCR, DNR and L-Asp had inhibition effect on Nalm-6 and Sup-B15 cell lines. The inhibition rate of Huaier aqueous extract combined with VCR, DNR and L-Asp were all higher than those of each dug alone (P<0.05) and the combination index (q) was between 0.85 and 1.15 or greater than 1.15. The two kinds of drugs showed had additive or synergistic effects. The results of flow cytometry showed that the cell apoptosis rates in combined treatment group were higher than those of each drug alone (P<0.05). The results of Western blot revealed that Huaier aqueous extract and VCR all decreased protein expression of BCL-2 (P<0.05) and increase protein expression of BAX (P<0.05) and cleaved Caspase-3 (P<0.05) in Nalm-6 and Sup-B15 cells. Compared with Huaier aqueous extract or VCR alone, the effect of two drug combination were more significant. DNR down-regulated protein expression of BCL-2 (P<0.05) and up-regulated cleaved Caspase-3 (P<0.05). However, it had no effect on the expression of BAX in Nalm-6 and Sup-B15 cells. When it was combined with Huaier aqueous extract, the expression of cleaved Caspase-3 and BCL-2 showed more significant changes. The expression of BAX in combined treated group did not show significant difference, compared with group treated with Huaier aqueous extract in Nalm-6 and Sup-B15 cells. L-Asp did not show significant effect on the three apoptosis-related proteins and there was no significant difference between the combination group and the Huaier aqueous extract group. CONCLUSION: the combination of Huaier aqueous extract and VCR, DNR, L-Asp shows additive or synergistic effects on human acute lymphoblastic leukemia cell lines Nalm-6 and Sup-B15.


Assuntos
Antineoplásicos , Leucemia-Linfoma Linfoblástico de Células Precursoras , Antineoplásicos/uso terapêutico , Linhagem Celular Tumoral , Misturas Complexas/uso terapêutico , Humanos , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico , Trametes
14.
Biosci Rep ; 40(8)2020 08 28.
Artigo em Inglês | MEDLINE | ID: mdl-32789470

RESUMO

Huaier Granule, a type of traditional Chinese biomedical preparation (TCBP), is considered to be a promising adjuvant therapy for breast cancer. Although an analysis of the published literature has been performed, the exact effects and safety of Huaier Granule remains controversial. Therefore, a wide-ranging systematic search of electronic databases from which to draw conclusions was performed. Data from 27 trials, including 2562 patients with breast cancer were analyzed. The results indicated that, compared with conventional treatment alone, the combination of conventional treatment and Huaier Granule markedly improved patients' overall response (P=0.02) and quality of life (P<0.00001), and significantly prolonged 2-year (P=0.02), 3-year (P<0.0001) and 5-year (P=0.004) overall survival rates, and 1-year (P=0.003), 2-year (P<0.00001), 3-year (P<0.00001) and 5-year (P=0.03) disease-free survival. The immune function of patients was also significantly enhanced after combined intervention treatment, indicated by clearly increased percentages of CD3+ (P=0.05), CD4+ (P<0.00001) and natural killer cells (P<0.0001), and CD4+/CD8+ ratio (P<0.00001). The incidence of myelosuppression (P=0.001) and hepatotoxicity (P=0.05) was lower in breast cancer patients treated with Huaier Granule, whereas other adverse events did not differ significantly between the two groups (P>0.05). In summary, results of this meta-analysis suggest that the combination of conventional treatment and Huaier Granule is more effective for the treatment of breast cancer than conventional treatment alone.


Assuntos
Antineoplásicos Fitogênicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Misturas Complexas/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos Fitogênicos/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neoplasias da Mama/imunologia , Neoplasias da Mama/mortalidade , Misturas Complexas/efeitos adversos , Ensaios Clínicos Controlados como Assunto , Feminino , Humanos , Pessoa de Meia-Idade , Fatores de Tempo , Trametes , Resultado do Tratamento
15.
Biomed Res Int ; 2020: 2403595, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32724797

RESUMO

Gastric cancer is one of the most common malignancies worldwide, with high morbidity and poor survival rate. Its prognosis remains unsatisfactory, with a 5-year survival rate of <30%. Studies have indicated that Huaier granules have good antitumor efficacy and safety in several solid malignant tumors. Recent studies have also found that Huaier polysaccharides can promote apoptosis in numerous tumor cells, although only few studies have focused on the effects of Huaier granules on gastric cancers and the mechanisms underlying their antitumor role. We retrospectively evaluated stage IIb gastric cancer patients at Xiangya Hospital, Central South University, through our outpatient system from January 2013 to December 2015. Fifty-four patients were in the Huaier+Tegafur Gimeracil Oteracil Potassium (TGOP) group and 72 in the TGOP group. Further, we conducted CCK8, colony formation, Annexin V-FITC/PI, Western blot, RT-PCR, and plasmid transfection assays to analyze the mechanism by which Huaier polysaccharides play an antitumor role. We confirmed that Huaier granules combined with Tegafur Gimeracil Oteracil Potassium could promote patient prognosis, with a better disease-free survival rate (51.32 ± 2.23 vs. 44.19 ± 2.26, p = 0.034) and overall survival rate (56.81 ± 1.32 vs. 51.32 ± 1.69, p = 0.020). Moreover, through cell proliferation assays, Western blot, RT-PCR, and detection of Livin expression at the mRNA and protein levels, we found that Huaier polysaccharides could promote gastric cancer cell apoptosis and inhibit gastric cancer cell proliferation in a time- and dose-dependent manner. Finally, we demonstrated that Huaier polysaccharides promote gastric cancer cell apoptosis through the regulation of Livin expression. Overexpression of Livin reversed the gastric cell apoptosis induced by Huaier polysaccharides. Huaier granules combined with Tegafur Gimeracil Oteracil Potassium ameliorated stage IIb gastric cancer prognosis and induced gastric cancer cell apoptosis by regulating Livin.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal/metabolismo , Antineoplásicos/uso terapêutico , Apoptose/efeitos dos fármacos , Misturas Complexas/uso terapêutico , Proteínas Inibidoras de Apoptose/metabolismo , Proteínas de Neoplasias/metabolismo , Piridinas/uso terapêutico , Neoplasias Gástricas/tratamento farmacológico , Tegafur/uso terapêutico , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Intervalo Livre de Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Potássio/uso terapêutico , Prognóstico , Estudos Retrospectivos , Estômago/efeitos dos fármacos , Estômago/patologia , Neoplasias Gástricas/metabolismo , Neoplasias Gástricas/patologia , Taxa de Sobrevida , Trametes
16.
Biomed Pharmacother ; 128: 110254, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32480220

RESUMO

Breast cancer is the leading cause of cancer death among women across the world. Trametes robiniophila Murr (Huaier), a traditional herbal medicine, has been used in China to protect human health for about 1600 years. Recent years, Huaier had been proven to be effective for multiple types of malignancies. This systematic review focused on breast cancer treatment, summarizing the curative function of Huaier aqueous extract and polysaccharides in preclinical researches. Huaier could markedly inhibit breast cancer progression with low toxicity, enhance immune response and increase the sensitivity to radiation and chemotherapy. The therapeutic effect of Huaier granule in clinical studies was also included. This review amalgamated the current studies and highlighted the promising role of Huaier and its polysaccharides as complementary alternative medicine in breast cancer treatment.


Assuntos
Antineoplásicos/uso terapêutico , Neoplasias da Mama/tratamento farmacológico , Misturas Complexas/uso terapêutico , Polissacarídeos Fúngicos/uso terapêutico , Polyporaceae , Animais , Antineoplásicos/efeitos adversos , Antineoplásicos/isolamento & purificação , Neoplasias da Mama/imunologia , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Misturas Complexas/efeitos adversos , Misturas Complexas/isolamento & purificação , Feminino , Polissacarídeos Fúngicos/efeitos adversos , Polissacarídeos Fúngicos/isolamento & purificação , Humanos , Polyporaceae/química , Trametes/isolamento & purificação , Resultado do Tratamento
17.
J Altern Complement Med ; 26(6): 521-528, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32310691

RESUMO

Objectives: Momiai ( shilajit, mummy, mumie, or mineral pitch) has been used traditionally in different medical systems for the treatment of a variety of ailments since hundreds of years ago. It is a natural substance found in different rocky parts of the world, formed by plants, mineral, and animal remains gradually. There is also worthwhile evidence supporting its oral use for bone repair in Persian medicine. The aim of this study was to evaluate the efficacy and safety of momiai in tibia fracture healing. Design: This study is a randomized double-blinded controlled trial. Settings/Location: Three different hospitals in Tehran, Iran. Subjects: Patients with age range of 18-60 years admitted due to new tibia fracture were enrolled after meeting the inclusion criteria. Interventions: The patients were divided into two groups randomly and received two 500 mg capsules of momiai or placebo for 28 days. Outcome measures: The process of bone healing was assessed by frequent X-ray radiographies and adverse effects were recorded. Results: Totally, 160 patients participated in the study either in two equal intervention or placebo groups. There was no significant difference between groups in terms of demographic and descriptive data. At the end of the study, the mean time of tibial bone union was 129 days in the experimental group, while it was 153 days in the placebo group (p < 0.049). There was no significant difference in the reported adverse effects between the two groups (p = 0.839). Conclusions: The current study showed that oral consumption of momiai after tibial shaft fracture surgery could be a promising option to reduce the healing time.


Assuntos
Misturas Complexas/uso terapêutico , Consolidação da Fratura/efeitos dos fármacos , Medicina Tradicional/métodos , Fraturas da Tíbia/tratamento farmacológico , Adulto , Cápsulas , Método Duplo-Cego , Feminino , Humanos , Irã (Geográfico) , Masculino , Pessoa de Meia-Idade , Fraturas da Tíbia/cirurgia
18.
J Ethnopharmacol ; 252: 112584, 2020 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-31972325

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Liu Shen Wan (LSW), first prescribed in "Lei Yunshang Song Fen Tang Fang", traditional Chinese medicine (TCM), is used to cure influenza, tonsillitis, pharyngitis and mumps for more than one hundred years. AIM OF STUDY: LSW was proved extensive pharmacological properties, for instance, anti-inflammatory, anticancer, antiviral, analgesic, antibacterial and immunomodulatory activities. Nevertheless, the mechanism of this process and the evaluation of this product is still ambiguous. Hence, the study was designed to investigate the antiviral and anti-inflammatory activities of LSW against the influenza virus in vitro and vivo. MATERIALS AND METHODS: The antiviral activities of LSW were assayed in virus-infected cells and mice. To study the antiviral effects of LSW against influenza A/PR/8/34 virus (PR8), we employed CPE inhibition assay with different concentrations of LSW at different times of infection in vitro. The mice were intranasally infected with virus to induce viral pneumonia, then treated with different doses of LSW. The death protection of the mice, the lung index, virus titer and pathological changes in the lung tissue of mice were investigated to estimate the anti-virus effect of LSW. Moreover, RT-qPCR was used to determine the mRNA expression of TNF-α, IL-1ß, IL-6, and IFN-γ in the A549 cells and the supernatant of lung tissues, and the concentrations of these four cytokines in serum of mice were determined with ELISA. Western blot was used to determine the expression of TLR4, p-NF-κB p65, NF-κB p65, p-IκBα and IκBα in the A549 cells and lung tissues, which are the key targets of TLR4/NF-κB pathway. Moreover, the immunohistochemical assay was used to determine the expression of the NF-κB p65 in the mice lungs. RESULTS: LSW could significantly inhibit influenza virus at different stages of viral replication (at the process of the pre-, post-, and co-virus infection) in vitro. And LSW (100 mg/kg and 50 mg/kg) could effectively increase the survival time of mice. The virus titres, lung index, pathological changes in the mice lungs also decreased. Moreover, LSW could significantly reduce the contents of IL-1ß, TNF-α, IFN-γ and IL-6 in the infected cells and the infected-mice. In addition, LSW could significantly reduce the expression of TLR4, p-NF-κB p65, NF-κB p65 and p-IκBα, while increase the IκBα in the infected cells and in the lung of mice. CONCLUSIONS: LSW could significantly not only inhibit virus replication and proliferation in vitro, but also ameliorate pneumonia damage in vivo. The antiviral effect was attributed to down-regulating the expression of inflammatory cytokines induced by influenza virus via regulating the activity of TLR4/NF-кB signaling pathway.


Assuntos
Anti-Inflamatórios/uso terapêutico , Antivirais/uso terapêutico , Misturas Complexas/uso terapêutico , Vírus da Influenza A/efeitos dos fármacos , NF-kappa B/antagonistas & inibidores , Infecções por Orthomyxoviridae/tratamento farmacológico , Receptor 4 Toll-Like/antagonistas & inibidores , Células A549 , Animais , Anti-Inflamatórios/farmacologia , Antivirais/farmacologia , Misturas Complexas/farmacologia , Citocinas/genética , Cães , Feminino , Humanos , Vírus da Influenza A/fisiologia , Pulmão/efeitos dos fármacos , Pulmão/patologia , Pulmão/virologia , Células Madin Darby de Rim Canino , Medicina Tradicional Chinesa , Camundongos Endogâmicos BALB C , NF-kappa B/imunologia , Infecções por Orthomyxoviridae/imunologia , Infecções por Orthomyxoviridae/patologia , Infecções por Orthomyxoviridae/virologia , Transdução de Sinais/efeitos dos fármacos , Receptor 4 Toll-Like/imunologia , Replicação Viral/efeitos dos fármacos
19.
Klin Onkol ; 33(6): 426-434, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33685191

RESUMO

BACKGROUND: Mushrooms Reishi and Coriolus have been used for centuries in Asian countries to treat various diseases, mainly respiratory tract infections or pulmonary diseases, and more recently also cancers. Polysaccharides and triterpenes, which are found in these mushrooms, are their main bio-active components. Preclinical and clinical studies in humans presented their beneficial effects as immunomodulators; besides this, they possess a direct anticancer effect. In Asia, they are used after cancer treatment as single agents or in combination with chemotherapy or radiotherapy. Extracts from Coriolus have been approved for more than 30 years as an effective adjuvant addition to standard cancer treatment in Japan and China without obvious toxicity. PURPOSE: In this review, clinical studies with Reishi and Coriolus in cancer patients and their meta-analyses are briefly summarized. CONCLUSION: Both extracts from Reishi and Coriolus, if used in combination with standard therapy or as an adjuvant single agent, have shown benefits at immune function measures, tumor-related symptoms and performance status of cancer patients. Moreover, they have prolonged their disease-free interval and overall survival. They are well tolerated even in advanced cancer diseases and could be safely used continuously for long periods of time. Because of clinically approved efficacy and safety, they are applied mainly in some countries as a complementary therapy for various types of cancers.


Assuntos
Adjuvantes Imunológicos/uso terapêutico , Antineoplásicos/uso terapêutico , Misturas Complexas/uso terapêutico , Neoplasias/tratamento farmacológico , Polyporales , Humanos
20.
Neurosci Lett ; 704: 106-111, 2019 06 21.
Artigo em Inglês | MEDLINE | ID: mdl-30953738

RESUMO

Aging is a natural process that accompanied with progressive cognitive deficits and functional decline in organisms. Selenium (Se), an essential trace element, exhibits antioxidative and anti-inflammatory abilities. Here, our study aimed to investigate the protective effects of aqueous extracts of Se-enriched Auricularia auricular (AESAA) on aging mice induced by d-galactose (D-gal) and explore its potential mechanism. d-gal was administered (100 mg/kg) subcutaneously for 12 weeks to establish an aging mouse model. Morris water maze (MWM) test was conducted to assess the cognitive deficits of mice. Superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT) activities and malondialdehyde (MDA) level in hippocampus were measured to evaluate oxidative stress. The contents of pro-inflammatory cytokines tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1ß) and interleukin-6 (IL-6) in hippocampus were determined by ELISA method. Further, hippocampal levels of RAGE, p-Erk, p-JNK, p-P38 and p-NF-κB were detected by western blot and the RAGE expression was confirmed by immunohistochemistry. We found that AESAA supplementation significantly decreased d-gal-induced cognitive deficits, as evidenced by better performance in the MWM test. Furthermore, AESAA treatment attenuated oxidative stress and decreased the contents of pro-inflammatory cytokines in hippocampus. Importantly, AESAA inhibited the up-regulation of RAGE, p-Erk, p-JNK, p-P38 in the hippocampus of d-gal treated mice. Moreover, the results also indicated that AESAA inhibited p-NF-κB and p-IκBα expression. In conclusion, our findings suggest that AESAA effectively decreases cognitive impairment, alleviates oxidative damage and neuroinflammation in mice through s RAGE/MAPK/NF-κB signaling pathway, which provides a potential therapy for delaying the aging process.


Assuntos
Basidiomycota/química , Disfunção Cognitiva/tratamento farmacológico , Misturas Complexas/uso terapêutico , Galactose , Proteínas Quinases Ativadas por Mitógeno/metabolismo , NF-kappa B/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Receptor para Produtos Finais de Glicação Avançada/metabolismo , Selênio/química , Envelhecimento , Animais , Disfunção Cognitiva/induzido quimicamente , Misturas Complexas/isolamento & purificação , Galactose/química , Inflamação/tratamento farmacológico , Masculino , Medicina Tradicional Chinesa , Camundongos Endogâmicos ICR , Transdução de Sinais , Solventes , Estereoisomerismo , Água
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