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1.
Biomed Chromatogr ; 38(7): e5887, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38751131

RESUMO

Omics, bioinformatics, molecular docking, and experimental validation were used to elucidate the hepatoprotective effects, mechanisms, and active compounds of Shandougen (SDG) based on the biolabel-led research pattern. Integrated omics were used to explore the biolabels of SDG intervention in liver tissue. Subsequently, bioinformatics and molecular docking were applied to topologically analyze its therapeutic effects, mechanisms, and active compounds based on biolabels. Finally, an animal model was used to verify the biolabel analysis results. Omics, bioinformatics, and molecular docking revealed that SDG may exert therapeutic effects on liver diseases in the multicompound and multitarget synergistic modes, especially liver cirrhosis. In the validation experiment, SDG and its active compounds (betulinic acid and gallic acid) significantly improved the liver histopathological damage in the CCl4-induced liver cirrhosis model. Meanwhile, they also produced significant inhibitory effects on the focal adhesion pathway (integrin alpha-1, myosin regulatory light chain 2, laminin subunit gamma-1, etc.) and alleviated the associated pathological processes: focal adhesion (focal adhesion kinase 1)-extracellular matrix (collagen alpha-1(IV) chain, collagen alpha-1(VI) chain, and collagen alpha-2(VI) chain) dysfunction, carcinogenesis (alpha-fetoprotein, NH3, and acetylcholinesterase), inflammation (tumor necrosis factor alpha, interleukin-1 [IL-1], IL-6, and IL-10), and oxidative stress (reactive oxygen species, malonaldehyde, and superoxide dismutase). This study provides new evidence and insights for the hepatoprotective effects, mechanisms, and active compounds of SDG.


Assuntos
Biologia Computacional , Simulação de Acoplamento Molecular , Animais , Fígado/efeitos dos fármacos , Fígado/metabolismo , Substâncias Protetoras/farmacologia , Substâncias Protetoras/química , Masculino , Ratos , Tetracloreto de Carbono , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/metabolismo , Ácido Gálico/química , Ácido Gálico/farmacologia , Triterpenos/química , Triterpenos/farmacologia , Proteômica/métodos , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/química
2.
J Biochem Mol Toxicol ; 38(6): e23746, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38769694

RESUMO

To identify the role of enterotoxin-related genes in colorectal cancer (CRC) development and progression. Upregulated differentially expressed genes shared by three out of five Gene Expression Omnibus (GEO) data sets were included to screen the key enterotoxin-induced oncogenes (EIOGs) according to criteria oncogene definition, enrichment, and protein-protein interaction (PPI) network analysis, followed by prognosis survival, immune infiltration, and protential drugs analyses was performed via integration of RNA-sequencing data and The Cancer Genome Atlas-derived clinical profiles. We screened nine common key EIOGs from at least three GEO data sets. A Cox proportional hazards regression models verified that more alive cases, decreased overall survival, and highest 4-year survival prediction in CRC patients with high-risk score. Protein tyrosine phosphatase receptor type F polypeptide-interacting protein alpha-4 (PPFIA4), STY11, SCN3B, and SPTBN5 were shared in the same PPI network. Immune infiltration results showed that SCN3B and synaptotagmin 11 expression were obviously associated with B cell, macrophage, myeloid dendritic cell, neutrophils, and T cell CD4+ and CD8+ in both colon adenocarcinoma and rectal adenocarcinoma. CHIR-99021, MLN4924, and YK4-279 were identified as the potential drugs for treatment. Finally, upregulated EIOGs genes PPFIA4 and SCN3B were found in colon adenocarcinoma and PPFIA4 and SCN3B were proved to promote cell proliferation and migration in vitro. We demonstrated here that EIOGs promoting a malignancy phenotype was related with poor survival and prognosis in CRC, which might be served as novel therapeutic targets in CRC management.


Assuntos
Neoplasias Colorretais , Enterotoxinas , Humanos , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Progressão da Doença , Regulação Neoplásica da Expressão Gênica , Mapas de Interação de Proteínas
3.
Eur J Pharmacol ; 965: 176330, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38220139

RESUMO

Pancreatic cancer (PC) is the most frequently occurring cancer, with few effective treatments and a 5-year survival rate of only about 11%. It is characterized by stiff interstitium and pressure on blood vessels, leading to an increased glycolytic metabolism. PFKFB3 plays an important role in glycolysis, and its products (fructose-2,6-bisphosphate), which are allosteric PFK1 activators, limit the glycolytic rate. In this study, 14 PFKFB3 inhibitors were obtained by virtually screening the FDA-approved compound library. Subsequently, the in-vitro investigations confirmed that Lomitapide and Cabozantinib S-malate exhibit the excellent potential to inhibit PFKFB3. The combined administration of Lomitapide and Gemcitabine at a certain molar ratio indicated an enhanced anti-tumor effect in Orthotopic Pancreatic Cancer (OPC) models. This investigation provides a new treatment strategy for PC therapy.


Assuntos
Neoplasias Pancreáticas , Fosfofrutoquinase-2 , Humanos , Fosfofrutoquinase-2/metabolismo , Reposicionamento de Medicamentos , Detecção Precoce de Câncer , Monoéster Fosfórico Hidrolases/metabolismo , Neoplasias Pancreáticas/tratamento farmacológico , Glicólise
4.
Int J Nanomedicine ; 18: 1281-1298, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36945256

RESUMO

Purpose: Chemotherapy is a significant and effective therapeutic strategy that is frequently utilized in the treatment of cancer. Small molecular prodrug-based nanoassemblies (SMPDNAs) combine the benefits of both prodrugs and nanomedicine into a single nanoassembly with high drug loading, increased stability, and improved biocompatibility. Methods: In this study, a disulfide bond inserted 7-ethyl-10-hydroxycamptothecin (SN38) prodrug was rationally designed and then used to prepare nanoassemblies (SNSS NAs) that were selectively activated by rich glutathione (GSH) in the tumor site. The characterization of SNSS NAs and the in vitro and in vivo evaluation of their antitumor effect on a pancreatic cancer model were performed. Results: In vitro findings demonstrated that SNSS NAs exhibited GSH-induced SN38 release and cytotoxicity. SNSS NAs have demonstrated a passive targeting effect on tumor tissues, a superior antitumor effect compared to irinotecan (CPT-11), and satisfactory biocompatibility with double dosage treatment. Conclusion: The SNSS NAs developed in this study provide a new method for the preparation of SN38-based nano-delivery systems with improved antitumor effect and biosafety.


Assuntos
Nanopartículas , Neoplasias Pancreáticas , Pró-Fármacos , Humanos , Pró-Fármacos/química , Liberação Controlada de Fármacos , Irinotecano/farmacologia , Sistemas de Liberação de Medicamentos/métodos , Neoplasias Pancreáticas/tratamento farmacológico , Dissulfetos/química , Linhagem Celular Tumoral , Nanopartículas/química , Camptotecina , Neoplasias Pancreáticas
5.
Biomed Chromatogr ; 36(7): e5385, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35445417

RESUMO

In traditional Chinese medicine, Herba Lysimachiae (HL) is mainly used to treat rheumatic arthralgia. Current pharmacological studies also showed that HL has therapeutic potential for synovial diseases. HL is an oral drug, whose compounds need to enter the blood circulation before reaching the injured tissue, thus potentially causing activity or toxicity to the blood system. In this study, the biolabel-led research pattern was used to analyze the serum profile after HL intervention, based on which the safety and efficacy of HL were explored. Metabonomics and proteomics were combined to analyze the biolabels responsible for the interventions of HL in serum. Bioinformatics databases were used to screen for the material basis that may interfere with biolabels. Omics analysis showed that differentially expressed proteins (19) and metabolites (5) were identified and considered as the potential biolabels, which were involved in 8 biochemical processes (platelet activation and aggregation, blood glucose release, immune and inflammatory regulation, oxidative stress, endoplasmic reticulum stress, tumor progression, blood pressure regulation, and uric acid synthesis). Thirty-one compounds may be the material basis to interfere with 11 biolabels. The present research reveals that the potential activities and toxicities of HL can be explored based on the biolabel-led research pattern.


Assuntos
Medicamentos de Ervas Chinesas , Proteômica , Animais , Medicamentos de Ervas Chinesas/química , Medicina Tradicional Chinesa , Metabolômica , Ratos
6.
Comput Biol Med ; 136: 104769, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34426169

RESUMO

Previous studies have shown that Sophorae Tonkinensis radix et rhizome (ST) can be used to treat some lung diseases. However, the therapeutic potentials, therapeutic advantages, mechanism of action, and material basis of ST treatment of lung diseases remain unclear. Thus, the aim of this study was to carry out an integrated analysis based on the biolabel-led research pattern. Proteomics and metabonomics were applied to explore the biolabels responsible for the effect of ST on lung tissue. Based on the biolabels, a bioinformatics database was used to topologically analyze the therapeutic potentials, therapeutic advantages, mechanism of action, and material basis of ST in treating lung diseases. Four human lung-cancer cell models were used to validate the results of the biolabel analysis. In total, 45 proteins and 3 metabolites were significantly enriched in 13 pathways and were considered as biolabels. Bioinformatics revealed that the therapeutic potentials of ST involved a variety of lung diseases, especially lung neoplasms. Under the mediation of 40 biolabels, 29 compounds may be the material basis of ST in treating lung diseases. In a verification experiment, ST had a significant inhibitory effect on the H226 cell line (lung squamous cell carcinoma), which ranks first in morbidity and mortality among lung cancers in China. Additionally, five biolabels (CPS1, CKM, CPT1B, COX5B, and COX4I1) were involved in the anti-lung cancer mechanism of ST and 3 compounds (gallic acid, betulinic acid, and caffeic acid). These findings indicate that the biolabel-led research pattern was helpful in achieving the objectives of this study.


Assuntos
Medicamentos de Ervas Chinesas , Pneumopatias , Sophora , Linhagem Celular Tumoral , Biologia Computacional , Desenho de Fármacos , Medicamentos de Ervas Chinesas/farmacologia , Humanos , Pneumopatias/tratamento farmacológico , Rizoma/química , Sophora/química
7.
Artigo em Inglês | MEDLINE | ID: mdl-34333216

RESUMO

The root and rhizome of Sophora tonkinensis Gagnep. (ST) are widely used for the treatment of tonsillitis, sore throats, and heat-evil-induced diseases in traditional Chinese medicine. However, the clinical application of ST is relatively limited due to its toxicity. The mechanism and material basis of ST-induced pulmonary toxicity are still unclear. In the present research, integrated omics and bioinformatics analyses were used to investigate the toxic mechanism and material basis of ST in lung tissue. Proteomics and metabonomics were integrated to analyze the differentially expressed proteins and metabolites. Joint pathway analysis was used to analyze the significantly dysregulated pathways. PubChem and the Comparative Toxicogenomics Database were applied for the screen of toxic targets and compounds. Integrated omics revealed that 323 proteins and 50 metabolites were differentially expressed after treating with ST, out of which 19 proteins and 1 metabolite were significantly enriched in seven pathways. Bioinformatics showed that 15 compounds may indirectly affect the expression of 9 toxic targets of ST. Multiple toxic targets of ST-induced pulmonary injury were found in the study, whose dysregulation may trigger pulmonary cancer, dyspnea, and oxidative stress. Multiple compounds may be the toxic material basis in response to these effects.


Assuntos
Medicamentos de Ervas Chinesas/toxicidade , Pulmão , Metaboloma/efeitos dos fármacos , Proteoma/efeitos dos fármacos , Sophora , Animais , Bases de Dados Genéticas , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/metabolismo , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Pulmão/química , Pulmão/efeitos dos fármacos , Pulmão/metabolismo , Pulmão/patologia , Masculino , Metabolômica , Camundongos , Camundongos Endogâmicos C57BL , Proteoma/análise , Proteômica
8.
Artigo em Inglês | MEDLINE | ID: mdl-33957357

RESUMO

Previous research has demonstrated that Herba Lysimachiae (HL) exerts the dual effects on platelet aggregation in the synovium, which may contribute to its protection against synovial lesions under different situations. However, the mechanism is unclear. In the present experiment, a biolabel research based on metabonomics was used to mine the information about the intervention of HL on synovium at the metabolite level, which may help to analyze the regulation of HL on synovial platelet aggregation and its possible treatment in synovial diseases. Synovial metabolic profiling was analyzed using a Shimadzu Nexera UHPLC LC-30A system and an AB SCIEX Triple TOF 4600 mass spectrometer. Enzyme-linked immunosorbent assay (ELISA) was used to verify the biolabels analysis results in the healthy and osteoarthritis rats. Totally, thirteen common metabolites were differentially expressed after treating with HL, and implicated in 2 key pathways (arachidonic acid metabolism and glycerophospholipid metabolism). ELISA showed that HL regulated the expression of prostaglandins E1 and E2 in synovial tissues of the healthy and osteoarthritis rats. This study reveals that HL may regulate synovial platelet aggregation through prostaglandin E1/E2. Additionally, HL is suitable for treating synovial diseases, especially osteoarthritis, which may be associated with platelet aggregation, apoptosis, inflammation, angiogenesis, and carcinogenesis processes.


Assuntos
Metaboloma/efeitos dos fármacos , Osteoartrite/metabolismo , Agregação Plaquetária/efeitos dos fármacos , Primulaceae , Prostaglandinas/metabolismo , Animais , Masculino , Redes e Vias Metabólicas/efeitos dos fármacos , Metabolômica , Extratos Vegetais/farmacologia , Ratos , Ratos Sprague-Dawley , Membrana Sinovial/metabolismo
9.
J Pharm Biomed Anal ; 198: 113994, 2021 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-33676169

RESUMO

In traditional Chinese medicine theory, Sophorae Tonkinensis radix et rhizome (ST) has the effects of treating tonsillitis, sore throats, and heat-evil-induced diseases. However, the utilization of ST is relatively restricted owing to its toxicity. The previous studies have made some progress on the mechanism and material basis of ST-induced hepatotoxicity, but there is still no significant breakthrough. In this study, integrated omics and bioinformatics analyses were used to investigate the mechanism and material basis of ST-induced hepatotoxicity. Integrated omics were used to analyze the differentially expressed proteins and metabolites, based on which the significantly dysregulated pathways were analyzed by using MetaboAnalyst. Bioinformatics was applied to screen the toxic targets and material basis. Integrated omics revealed that 254 proteins and 42 metabolites were differentially expressed after the treatment with ST, out of which 7 proteins were significantly enriched in 3 pathways. Bioinformatics showed that 20 compounds may interfere with the expression of 7 toxic targets of ST. Multiple toxic targets of ST-induced hepatotoxicity were found in the study, whose dysregulation may trigger hepatocyte necrosis/apoptosis, liver metastasis, and liver cirrhosis. Multiple compounds may be the toxic material basis in response to these effects.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas , Medicamentos de Ervas Chinesas , Sophora , Doença Hepática Induzida por Substâncias e Drogas/genética , Biologia Computacional , Medicamentos de Ervas Chinesas/toxicidade , Rizoma
10.
Am J Chin Med ; 49(2): 359-389, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33622209

RESUMO

Sophora tonkinensis Gagnep. (ST) (Fabaceae) is distributed chiefly in south-central and southeast China and Vietnam. In traditional Chinese medicine theory, the root and rhizome of ST are toxic and mainly used in the treatment of pharyngeal and laryngeal diseases. Modern studies provide new insights into the pharmacological and toxicological aspects of ST. The pharmacological and toxicological properties of ST were reviewed in this paper based on the literature from Google Scholar and CNKI, and the bioinformatics platforms were applied to explore the pharmacological and toxicological potentials of ST. The results of the literature analysis showed that ST has hepatoprotective, immunomodulatory, and anticancer effects and produces obvious toxicity to the liver and nervous and cardiovascular system. The results of bioinformatics showed that the compounds from ST may be applied to the treatment of cancer and digestive and nervous system diseases and show the possibility to cause hematotoxicity, neurotoxicity, and immunotoxicity. The present review demonstrates that attention should be paid to the potential toxicity of ST in the treatment of diseases and provides the reference for the subsequent pharmacological toxicological studies on the mechanism and chemical basis of ST.


Assuntos
Medicina Tradicional Chinesa , Extratos Vegetais , Sophora/química , Sophora/toxicidade , Humanos , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Extratos Vegetais/toxicidade
11.
Clin Chim Acta ; 487: 28-32, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30218656

RESUMO

BACKGROUND: Oral lichen planus (OLP) is a chronic inflammatory mucosal disorder and potentially oral premalignant lesion affecting the stratified squamous epithelia. In OLP, reticular type is the most common clinical form of the disease. However, little is known about it. Metabolomics analysis may help to investigate the disease pathogenesis and to improve clinical treatment. METHODS: Liquid chromatography (LC)-mass spectrometry (MS) system, XCMS software, SIMCA software, and OSI / SMMS software were integrated to identify differentially expressed metabolites for the pathways and pathology analysis. RESULTS: Totally, 21 modulated metabolites were identified, whose dysregulations affected 30 metabolic pathways. Through an impact-value screen (impact-value>0.1), 8 pathways were selected as the significantly dysregulated pathways. Pathological network showed that these metabolites participated in 5 pathological processes, that is, inflammatory lesion, DNA damage and repair disorder, apoptosis process, oxidative stress injury, and abnormal energy expenditure. CONCLUSION: The study revealed the metabolic perturbation of oral mucosa in reticular OLP, which may provide an important reference for the understanding of the pathogenesis of the disease and the discovery of therapeutic targets.


Assuntos
Líquen Plano Bucal/metabolismo , Metabolômica , Mucosa Bucal/metabolismo , Adolescente , Adulto , Cromatografia Líquida , Feminino , Humanos , Líquen Plano Bucal/patologia , Masculino , Espectrometria de Massas , Pessoa de Meia-Idade , Mucosa Bucal/patologia , Software , Adulto Jovem
12.
Clin Chim Acta ; 468: 46-50, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28215546

RESUMO

BACKGROUND: Oral lichen planus (OLP) is a chronic auto-inflammatory mucositis and potentially oral premalignant lesion. Erosive OLP patients display the higher canceration rate as compared to the patients with non-erosive OLP. Identification of the potential biomarkers associated with erosive OLP may help to investigate the disease pathogenesis and to improve clinical treatment. METHODS: Ultra-performance liquid chromatography-quadrupole time-of-flight-mass spectrometry (UPLC-QTOF-MS) combined with pattern recognition approaches were integrated to acquire differentially expressed metabolites for the pathways analysis and elucidate mechanisms of disease. RESULTS: Totally, 10 modulated metabolites were characterized as the potential biomarkers of erosive OLP, whose dysregulations could affect multiple metabolic pathways and pathological processes in the disease. CONCLUSION: These findings indicated that the analysis of human serum metabolome might be conducive to the achievement of the objectives of this study.


Assuntos
Líquen Plano Bucal/sangue , Líquen Plano Bucal/metabolismo , Metabolômica , Adulto , Biomarcadores/sangue , Biomarcadores/metabolismo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
13.
Arch Oral Biol ; 73: 206-213, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27771589

RESUMO

OBJECTIVE: Oral lichen planus (OLP) is a relatively common chronic immune-pathological and inflammatory disease and potentially oral precancerous lesion. Erosive OLP patients show the higher rate of malignant transformation than patients with non-erosive OLP. Identifying the potential biomarkers related to erosive OLP may help to understand the pathogenesis of the diseases. METHODS: Metabolic profiles were compared in control and patient subjects with erosive OLP by using ultra-performance liquid chromatography-quadrupole time-of-flight-mass spectrometry (UPLC-QTOF-MS) coupled with pattern recognition methods An integrative analysis was used to identify the perturbed metabolic pathways and pathological processes that may be associated with the disease. RESULTS: In total, 12 modulated metabolites were identified and considered as the potential biomarkers of erosive OLP. Multiple metabolic pathways and pathological processes were involved in erosive OLP. CONCLUSION: The dysregulations of these metabolites could be used to explain the pathogenesis of the disease, which could also be the potential therapeutic targets for the disease.


Assuntos
Biomarcadores/urina , Líquen Plano Bucal/urina , Adulto , Metabolismo dos Carboidratos , Cromatografia Líquida , Feminino , Humanos , Líquen Plano Bucal/metabolismo , Líquen Plano Bucal/patologia , Masculino , Espectrometria de Massas , Redes e Vias Metabólicas , Metabolômica/métodos , Pessoa de Meia-Idade , Estresse Oxidativo/fisiologia , Piroptose/fisiologia
14.
Planta Med ; 81(9): 722-32, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25922912

RESUMO

Acanthopanax senticosus is extensively used to treat various nervous and cerebrovascular diseases in traditional medicinal systems in China and Russia. Ultrahigh-performance liquid chromatography-quadrupole time-of-flight-mass spectrometry coupled with pattern recognition methods was used to investigate the effects of A. senticosus on the peripheral system in rats. The analysis of possible pathways influenced by A. senticosus was performed with MetaboAnalyst and Cytoscape software. After treatment with A. senticosus, 21 modulated metabolites in heart tissue, 20 in liver tissue, 14 in spleen tissue, 17 in lung tissue, 16 in kidney tissue, and 12 in a serum sample were identified and considered potential biomarkers of A. senticosus treatments. The regulation of some endogenous metabolites by A. senticosus could be beneficial for the treatment of several peripheral system diseases, such as hypertension, cancer, and oxidative stress, etc. However, there were also some upregulated endogenous metabolites producing potential toxicity to the peripheral system. A metabonomic analysis revealed that protection and toxicity coexisted in the effects of A. senticosus on the peripheral system, which may be a practical guide for its safe use and beneficial to the expansion of its application.


Assuntos
Eleutherococcus/química , Metabolômica , Extratos Vegetais , Animais , Biomarcadores/metabolismo , Cromatografia Líquida de Alta Pressão , Coração/efeitos dos fármacos , Rim/efeitos dos fármacos , Rim/metabolismo , Fígado/efeitos dos fármacos , Fígado/metabolismo , Pulmão/efeitos dos fármacos , Pulmão/metabolismo , Masculino , Espectrometria de Massas , Miocárdio/metabolismo , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/efeitos adversos , Extratos Vegetais/farmacologia , Ratos , Ratos Sprague-Dawley , Baço/efeitos dos fármacos , Baço/metabolismo
15.
Fitoterapia ; 93: 47-53, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24370660

RESUMO

Influenza poses a particular risk of severe outcomes in the elderly, the very young and those with underlying diseases. Tea polyphenols are the natural phenolic compounds in teas, and principally consist of catechins, proanthocyanidins, flavonols, and theaflavins, which antiviral activities have been reported recently. This study is to gain a further insight into potential of various tea polyphenols for inhibiting influenza virus infection. Five tea polyphenols exhibited inhibitory activity against influenza A virus in the trend of theaflavin>procyanidin B-2>procyanidin B-2 digallate>(-)-epigallocatechin(EGC)>(-)-epigallocatechingallate(EGCG) with IC50 values in the range of 16.2-56.5 µg/ml. Six of the tested compounds showed anti-influenza B virus activity in the order of kaempferol>EGCG>procyanidin B-2>(-)-EGC~methylated EGC>theaflavin with IC50 values in the range of 9.0-49.7 µg/ml. Based on these results, the structure-activity relationship (SAR) was explained as follows. First, the dimeric molecules, such as theaflavin and procyanidin B-2, generally displayed more potent antiviral activity against both influenza A and B viruses than the catechin monomers. Second, the kaempferol for inhibition of influenza B virus indicated that the more planar flavonol structure with only one C-4' phenolic hydroxyl group in the B ring is necessary for the anti-influenza B virus activity. A similar SAR can be drawn from the assays of another enveloped RNA virus, such as respiratory syncytial virus. These results are expected to provide guides for rational design of antiviral drugs based on polyphenols.


Assuntos
Antivirais/análise , Camellia sinensis/química , Vírus da Influenza A/efeitos dos fármacos , Vírus da Influenza B/efeitos dos fármacos , Polifenóis/química , Animais , Antivirais/farmacologia , Efeito Citopatogênico Viral , Cães , Células Madin Darby de Rim Canino , Testes de Sensibilidade Microbiana , Polifenóis/farmacologia , Relação Estrutura-Atividade , Chá/química
16.
Phytomedicine ; 21(5): 704-11, 2014 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-24252343

RESUMO

Extract of Acanthopanax senticosus harms (EAS) has been shown to have neuroprotective effects on dopaminergic neurons in Parkinson's disease (PD) mice model. α-Synuclein is a key player in the pathogenesis of PD, the elevated level of which is deleterious to dopaminergic neurons, and enhancing its clearance might be a promising strategy for treating PD. To assess the potential of EAS in this regard, we investigated its effect on the SH-SY5Y cells overexpressing wild-type α-synuclein (WT-α-Syn) or A53T mutant α-synuclein (A53T-α-Syn), and the implicated pathway it might mediate. After treatment with EAS, the changes of α-synuclein, caspase-3, parkin, phospho-protein kinase B (Akt), phospho-glycogen synthase kinase 3 beta (GSK3ß), and phospho-microtubule-associated protein tau (Tau) in WT-α-Syn or A53T-α-Syn transgenic cells were reverted back to near normal levels, demonstrated by the western blotting and quantitative real-time PCR outcomes. The neuroprotective effects of EAS may be able to protect WT-α-Syn or A53T-α-Syn transgenic SH-SY5Y cells from α-synuclein overexpression and toxicity. Therefore, we speculate that EAS might be a promising candidate for prevention or treatment of α-synuclein-related neurodegenerative disorders such as PD.


Assuntos
Eleutherococcus , Fármacos Neuroprotetores/farmacologia , Doença de Parkinson/tratamento farmacológico , Extratos Vegetais/farmacologia , alfa-Sinucleína/metabolismo , Caspase 3/metabolismo , Linhagem Celular Tumoral , Avaliação Pré-Clínica de Medicamentos , Eleutherococcus/química , Humanos , Fármacos Neuroprotetores/análise , Fármacos Neuroprotetores/uso terapêutico , Doença de Parkinson/metabolismo , Fitoterapia , Extratos Vegetais/uso terapêutico , Ubiquitina-Proteína Ligases/metabolismo
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