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1.
Cell Death Discov ; 10(1): 129, 2024 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-38467615

RESUMO

The disruption of circadian rhythms caused by long-term shift work can cause metabolic diseases such as obesity. Early growth response 3 (EGR3) is a member of early growth response (EGR) family, which is involved in several cellular responses, had been reported as a circadian rhythm gene in suprachiasmatic nucleus. In this research, EGR3 was found to be widely expressed in the different tissue of human and mice, and downregulated in adipose tissue of obese subjects and high-fat diet mice. Moreover, EGR3 was found negatively regulated by cortisol. In addition, EGR3 is a key negative modulator of hADSCs and 3T3-L1 adipogenesis via regulating HDAC6, which is a downstream target gene of EGR3 and a negative regulator of adipogenesis and lipogenesis. These findings may explain how circadian rhythm disorder induced by shift works can cause obesity. Our study revealed a potential therapeutic target to alleviate metabolic disorders in shift workers and may provide better health guidance to shift workers.

2.
Diabetes Metab Syndr Obes ; 17: 45-54, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38192493

RESUMO

Purpose: Adipogenesis is one of the major pathways for generating obesity or overweight that can cause a range of metabolic disorders. Circular RNAs (circRNAs), a specific type of RNAs, have a significant influence on metabolic disorders. This study aims to find differentially expressed circRNAs (DECs) during human subcutaneous adipose tissue (SATs) adipogenesis. Patients and Methods: The human adipose tissue-derived stromal cells (hADSCs) were isolated from human SATs (n = 3), and then induced into adipocytes. Total RNAs were extracted from hADSCs and adipocytes, and he DECs were detected using circRNA microarray. The GO and KEGG pathways of DECs were analyzed by bioinformatic methods, and partial DECs were further validated by quantitative polymerase chain reaction (qPCR). Results: Our study detected a total of 1987 DECs, among which, 1134 were found upregulated and 853 were downregulated. GO analysis showed that the upregulated DECs have catalytic activity in intracellular organelle and cytoplasms, whereas downregulated DECs are enriched in organelle lumen, and are involved in positive regulation of developmental process. In addition, pathway results demonstrated that upregulated DECs are involved in platinum drug resistance and cellular senescence, and downregulated DECs are enriched in proteoglycans in cancer and focal adhesion pathway. Two circRNAs, namely has_circ_0001600 and has_circ_0001947 were validated to be significantly upregulated in adipocytes compared to hADSCs. Conclusion: Our study explored DECs between hADSCs derived from SATs and adipocytes, and report that two circRNAs named has_circ_0001600 and has_circ_0001947 might be important factors involved in human adipogenesis, however, the molecular mechanism should be further explored.

3.
Artigo em Inglês | MEDLINE | ID: mdl-37817652

RESUMO

Type 1 Diabetes (T1D) is characterized by hyperglycemia, and caused by a lack of insulin secretion. At present there is no cure for T1D and patients are dependent on exogenous insulin for lifelong, which seriously affects their lives. Mesenchymal stem cells (MSCs) can be differentiated to ß cell-like cells to rescue the secretion of insulin and reconstruct immunotolerance to preserve the function of islet ß cells. Due to the higher proportion of children and adolescents in T1D patients, the efficacy and safety issue of the application of MSC's transplant in T1D was primarily demonstrated and identified by human clinical trials in this review. Then we clarified the mechanism of MSCs to relieve the symptom of T1D and found out that UC-MSCs have no obvious advantage over the other types of MSCs, the autologous MSCs from BM or menstrual blood with less expanded ex vivo could be the better choice for clinical application to treat with T1D through documentary analysis. Finally, we summarized the advances of MSCs with different interventions such as genetic engineering in the treatment of T1D, and demonstrated the advantages and shortage of MSCs intervened by different treatments in the transplantation, which may enhance the clinical efficacy and overcome the shortcomings in the application of MSCs to T1D in future.

4.
Mediators Inflamm ; 2023: 2252255, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36741074

RESUMO

Background: Sepsis, which could cause a systemic inflammatory response, is a life-threatening disease with a high morbidity and mortality rate. There is evidence that brain injury may be related to severe systemic infection induced by sepsis. The brain injury caused by sepsis could increase the risk of mortality in septic patients, which seriously affects the septic patient's prognosis of survival. Although there remains a focus on sepsis research, clinical measures to prevent and treat brain injury in sepsis are not yet available, and the high mortality rate is still a big health burden. Therefore, it is necessary to investigate the new molecules or regulated pathways that can effectively inhibit the progress of sepsis. Objective: NLR family pyrin domain-containing 3 (NLRP3) increased in the procession of sepsis and functioned as the key regulator of pyroptosis. Heat shock factor 1 (HSF1) can protect organs from multiorgan dysfunction syndrome induced by lipopolysaccharides in mice, and NLRP3 could be inhibited by HSF1 in many organs. However, whether HSF1 regulated NLRP3 in sepsis-induced brain injury, as well as the detailed mechanism of HSF1 in brain injury, remains unknown in the sepsis model. In this research, we try to explore the relationship between HSF1 and NLRP3 in a sepsis model and try to reveal the mechanism of HSF1 inhibiting the process of brain injury. Methods: In this study, we used wild-type mice and hsf1 -/- mice for in vivo research and PC12 cells for in vitro research. Real-time PCR and Western blot were used to analyze the expression of HSF1, NLRP3, cytokines, and pyrolytic proteins. EthD-III staining was chosen to detect the pyroptosis of the hippocampus and PC12 cells. Results: The results showed that HSF1 is negatively related to pyroptosis. The pyroptosis in cells of brain tissue was significantly increased in the hsf1 -/- mouse model compared to hsf1 +/+ mice. In PC12 cells, hsf1 siRNA can upregulate pyroptosis while HSF1-transfected plasmid could inhibit the pyroptosis. HSF1 could negatively regulate the NLRP3 pathway in PC12 cells, while hsf1 siRNA enhanced the pyroptosis in PC12 cells, which could be reversed by nlrp3 siRNA. Conclusion: These results imply that HSF1 could alleviate sepsis-induced brain injury by inhibiting pyroptosis through the NLRP3-dependent pathway in brain tissue and PC12 cells, suggesting HSF1 as a potential molecular target for treating brain injury in sepsis clinical studies.


Assuntos
Lesões Encefálicas , Fatores de Transcrição de Choque Térmico , Proteína 3 que Contém Domínio de Pirina da Família NLR , Sepse , Animais , Camundongos , Ratos , Fatores de Transcrição de Choque Térmico/farmacologia , Inflamassomos/metabolismo , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Piroptose , RNA Interferente Pequeno , Sepse/metabolismo
5.
Diabetes Metab Syndr Obes ; 16: 469-478, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36814952

RESUMO

Purpose: Brown adipose tissue (BAT) can rapidly generate heat and improve energy metabolism. Circular RNAs (circRNAs) are cellular endogenous non-coding RNAs, which can regulate the development and progress of different diseases. However, the role of circRNAs in human BAT is not fully understood. Here, we analyzed the differentially expressed circRNAs (DECs) in human BAT, as well as in white adipose tissue (WAT), and identified new biomarkers of BAT. Patients and Methods: Three human BAT and three human subcutaneous WAT samples were selected, and circRNA microarray was performed. Additionally, quantitative real-time polymerase chain reaction (qRT-PCR) was applied to determine the expression of six circRNAs. Finally, the functional analysis was performed by bioinformatics. Results: Compared to WAT, 152 upregulated circRNAs and 201 downregulated circRNAs were identified in BAT. The DECs were further subjected to GO and KEGG enrichment analysis. Several circRNAs, for example, hsa_circ_0006168, hsa_circ_26337 and hsa_circ_0007507 were found upregulated and hsa_circ_0030162 was found downregulated in human BAT compared to WAT. Conclusion: This study profiles the circRNA expression in human BAT and WAT, and suggests hsa_circ_0006168, hsa_circ_26337, hsa_circ_0007507, and hsa_circ_0030162 as novel biomarkers for human BAT.

6.
Curr Med Chem ; 30(3): 316-334, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-34477507

RESUMO

BACKGROUND: Triple-negative breast cancer (TNBC) is the most aggressive type of breast cancer with enhanced metastasis and poor survival. Though chemotherapy, radiotherapy, photothermal therapy (PTT), photodynamic therapy (PDT), and gene delivery are used to treat TNBC, various side effects limit these therapeutics against TNBC. In this review article, we have focused on the mechanism of action of gold nanoparticles (AuNPs) to enhance the efficacy of therapeutics with targeted delivery on TNBC cells. METHODS: Research data were accumulated from PubMed, Scopus, Web of Science, and Google Scholar using searching criteria "gold nanoparticles and triple-negative breast cancer" and "gold nanoparticles and cancer". Though we reviewed many old papers, the most cited papers were from the last ten years. RESULTS: Various studies indicate that AuNPs can enhance bioavailability, site-specific drug delivery, and efficacy of chemotherapy, radiotherapy, PTT, and PDT as well as modulate gene expression. The role of AuNPs in the modulation of TNBC therapeutics through the inhibition of cell proliferation, progression, and metastasis has been proved in vitro and in vivo studies. As these mechanistic actions of AuNPs are most desirable to develop drugs with enhanced therapeutic efficacy against TNBC, it might be a promising approach to apply AuNPs for TNBC therapeutics. CONCLUSION: This article reviewed the mechanism of action of AuNPs and their application in the enhancement of therapeutics against TNBC. Much more attention is required for studying the role of AuNPs in developing them either as a single or synergistic anticancer agent against TNBC.


Assuntos
Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Nanopartículas Metálicas , Neoplasias de Mama Triplo Negativas , Humanos , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Ouro/uso terapêutico , Nanopartículas Metálicas/uso terapêutico , Disponibilidade Biológica
7.
Drug Discov Today ; 28(3): 103481, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-36584876

RESUMO

Cordycepin, a nucleoside from Cordyceps mushrooms, has many beneficial properties for health, including anticancer activities. In cancer cells, cordycepin targets various signaling molecules. Here, we review the possible anticancer mechanisms of cordycepin involving the targeting of kinases. Abnormal kinase expression is involved in cancer development and progression through different molecular mechanisms, including phosphorylation, amplification, genetic mutations, and epigenetic regulation. Research suggests that kinases, such as the c-Jun N-terminal kinase (JNK), mitogen-activated protein kinase (MAPK), AMP kinase (AMPK), phosphoinositide 3-kinase (PI3K)/Akt, extracellular signal-regulated kinase (ERK), mammalian target of rapamycin (mTOR), glycogen synthase kinase (GSK)-3ß, and focal adhesion kinase (FAK) pathways, can be targeted by cordycepin and disrupting their activity. Given that kinase inhibitors can have crucial roles in cancer treatment, targeting kinases might be one of the molecular mechanisms involved in the anticancer potential of cordycepin.


Assuntos
Neoplasias , Fosfatidilinositol 3-Quinases , Fosfatidilinositol 3-Quinases/metabolismo , Epigênese Genética , Transdução de Sinais , Desoxiadenosinas/metabolismo , Desoxiadenosinas/farmacologia , Fosforilação , Proteínas Proto-Oncogênicas c-akt/metabolismo
8.
Molecules ; 27(19)2022 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-36235288

RESUMO

Thymoquinone, a well-known phytoconstituent derived from the seeds of Nigella sativa, exhibits unique pharmacological activities However, despite the various medicinal properties of thymoquinone, its administration in vivo remains challenging due to poor aqueous solubility, bioavailability, and stability. Therefore, an advanced drugdelivery system is required to improve the therapeutic outcome of thymoquinone by enhancing its solubility and stability in biological systems. Therefore, this study is mainly focused on preparing thymoquinone-loaded liposomes to improve its physicochemical stability in gastric media and its performance in different cancer cell line studies. Liposomes were prepared using phospholipid extracted from egg yolk. The liposomal nano preparations were evaluated in terms of hydrodynamic diameter, zeta potential, microscopic analysis, and entrapment efficiency. Cell-viability measurements were conducted using breast and cervical cancer cell lines. Optimized liposomal preparation exhibited polygonal, globule-like shape with a hydrodynamic diameter of less than 260 nm, PDI of 0.6, and zeta potential values of -23.0 mV. Solid-state characterizations performed using DSC and XRPD showed that the freeze-dried liposomal preparations were amorphous in nature. Gastric pH stability data showed no physical changes (precipitation, degradation) or significant growth in the average size of blank and thymoquinone-loaded liposomes after 24 h. Cell line studies exhibited better performance for thymoquinone-loaded liposomal drug delivery system compared with the thymoquinone-only solution; this finding can play a critical role in improving breast and cervical cancer treatment management.


Assuntos
Neoplasias da Mama , Neoplasias do Colo do Útero , Benzoquinonas , Neoplasias da Mama/tratamento farmacológico , Linhagem Celular Tumoral , Sistemas de Liberação de Medicamentos , Feminino , Humanos , Lipossomos/química , Tamanho da Partícula , Fosfolipídeos , Neoplasias do Colo do Útero/tratamento farmacológico
9.
Diabetes Metab Syndr Obes ; 15: 2789-2801, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36118796

RESUMO

Purpose: Type 2 diabetes mellitus (T2DM) increases the incidence of diabetic nephropathy (DN) and eventually progresses to end-stage renal disease. Circular RNAs (circRNAs) are a class of non-coding RNAs that are promising as diagnostic biomarkers and therapeutic targets for human diseases. The aim of this study was to analyze the differential expression of circRNAs (DECs) in peripheral blood from patients with early type 2 diabetic nephropathy (ET2DN), T2DM and controls, which will facilitate to discover some new biomarkers for ET2DN. Patients and Methods: Twenty ET2DN patients, 20 T2DM patients, and 20 normal controls were included in this study. Blood samples from 3 random subjects of age- and sex-matched patients in each group, respectively, were used to detect circRNA expression profiles by circRNA microarray, and the circRNA expression of remaining subjects was validated by real-time quantitative polymerase chain reaction (qRT-PCR). Further functional assessment was performed by bioinformatic tools. Results: There were 586 DECs in ET2DN vs T2DM group (249 circRNAs were upregulated and 337 circRNAs were downregulated); 176 circRNAs were upregulated and 101 circRNAs were downregulated in T2DM vs control group; 57 circRNAs were upregulated and 5 circRNAs were downregulated in ET2DN vs control group. The functional and pathway enrichment of DECs were analyzed by GO and KEGG. qRT-PCR results revealed that hsa_circ_0001831 and hsa_circ_0000867 were significantly upregulated in ET2DN group compared to both of T2DM and control group. The ROC curve demonstrated that hsa_circ_0001831 and hsa_circ_0000867 have high sensitivity and specificity associated with ET2DN. Conclusion: Our study showed the expression profiles of circRNAs in ET2DN patients and demonstrated that hsa_circ_0001831 and hsa_circ_0000867 can be used as novel diagnostic biomarkers for ET2DN.

11.
Front Oncol ; 12: 898583, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35774120

RESUMO

Cancer metastasis is the most important cause of cancer-related death, and epithelial-to-mesenchymal transition (EMT) plays crucial roles in cancer metastasis. Cordycepin (CD) is highly enriched in the medicinally used Cordyceps mushroom. In this study, we conducted the antimetastatic activities of CD, specifically focusing on its regulatory effects on EMT-inducing transcription factors (EMT-TFs) in triple-negative breast cancer (TNBC). Our study showed CD to inhibit the growth, migration, and invasion of BT549 and 4T1 cancer cell lines, by employing cell viability assay and real-time cell analyses. The protein levels of N-Cadherin and E-Cadherin, as well as their transcription factors TWIST1, SLUG, SNAIL1, and ZEB1 in BT549 and 4T1 cells, were estimated by Western blot assays. Results from dual-luciferase reporter assays demonstrated that CD is capable of inactivating the EMT signaling pathway by inhibiting TWIST1 and SLUG expression. Furthermore, in vivo studies with mice carrying cancer cell-derived allograft tumors showed the inhibitory effect of CD on cancer cell growth and metastasis. Furthermore, the additive/synergistic anti-metastasis effect of CD and thymoquinone (TQ), another natural product with promising anticancer roles, was demonstrated by combinational treatment. The results from this research indicate that CD would be a promising therapeutic molecule against TNBC by targeting EMT-TFs, possibly in SLUG, TWIST1, SNAIL1, and ZEB1.

12.
BMC Cancer ; 22(1): 707, 2022 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-35761256

RESUMO

BACKGROUND: Triple negative breast cancer (TNBC) is a molecular subtype of breast cancer, which is a major health burden of females worldwide. Thymoquinone (TQ), a natural compound, has been found to be effective against TNBC cells, and this study identified IL17RD as a novel target of TQ in TNBC cells. METHODS: We have performed chromatin immunoprecipitation Sequence (ChIP-Seq) by MBD1 (methyl-CpG binding domain protein 1) antibody to identify genome-wide methylated sites affected by TQ. ChIP-seq identified 136 genes, including the tumor suppressor IL17RD, as a novel target of TQ, which is epigenetically upregulated by TQ in TNBC cell lines BT-549 and MDA-MB-231. The IL17RD expression and survival outcomes were studied by Kaplan-Meier analysis. RESULTS: TQ treatment inhibited the growth, migration, and invasion of TNBC cells with or without IL17RD overexpression or knockdown, while the combination of IL17RD overexpression and TQ treatment were the most effective against TNBC cells. Moreover, higher expression of IL17RD is associated with longer survival in TNBC patients, indicating potential therapeutic roles of TQ and IL17RD against TNBC. CONCLUSIONS: Our data suggest that IL17RD might be epigenetically upregulated in TNBC cell lines by TQ, and this might be one of the mechanisms by which TQ exerts its anticancer and antimetastatic effects on TNBC cells.


Assuntos
Neoplasias de Mama Triplo Negativas , Benzoquinonas/farmacologia , Linhagem Celular Tumoral , Feminino , Humanos , Processos Neoplásicos , Receptores de Interleucina/uso terapêutico , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Neoplasias de Mama Triplo Negativas/genética , Neoplasias de Mama Triplo Negativas/metabolismo
13.
Front Endocrinol (Lausanne) ; 13: 859638, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35370989

RESUMO

Type 1 diabetes mellitus (T1DM) is an autoimmune disease that attacks pancreatic ß-cells, leading to the destruction of insulitis-related islet ß-cells. Islet ß-cell transplantation has been proven as a curative measure in T1DM. However, a logarithmic increase in the global population with diabetes, limited donor supply, and the need for lifelong immunosuppression restrict the widespread use of ß-cell transplantation. Numerous therapeutic approaches have been taken to search for substitutes of ß-cells, among which stem cell transplantation is one of the most promising alternatives. Stem cells have demonstrated the potential efficacy to treat T1DM by reconstitution of immunotolerance and preservation of islet ß-cell function in recent research. cGMP-grade stem cell products have been used in human clinical trials, showing that stem cell transplantation has beneficial effects on T1DM, with no obvious adverse reactions. To better achieve remission of T1DM by stem cell transplantation, in this work, we explain the progression of stem cell transplantation such as mesenchymal stem cells (MSCs), human embryonic stem cells (hESCs), and bone marrow hematopoietic stem cells (BM-HSCs) to restore the immunotolerance and preserve the islet ß-cell function of T1DM in recent years. This review article provides evidence of the clinical applications of stem cell therapy in the treatment of T1DM.


Assuntos
Diabetes Mellitus Tipo 1 , Células Secretoras de Insulina , Ilhotas Pancreáticas , Diabetes Mellitus Tipo 1/cirurgia , Humanos , Insulina/metabolismo , Células Secretoras de Insulina/metabolismo , Ilhotas Pancreáticas/metabolismo , Transplante de Células-Tronco
15.
Mol Biol Rep ; 49(7): 6725-6739, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35277785

RESUMO

Cancer is one of the major health burdens worldwide, and genetic polymorphisms in individuals are closely associated with cancer susceptibility. Like in many other developing countries, the risk of cancer is increasing among Bangladeshi population. Genetic polymorphisms in xenobiotic metabolic enzymes (CYP1A1, CYP2A6, CYP3A4, CYP3A5, NAT2, SULT1A), cell cycle regulatory proteins (TP53, HER2, MDM2, miR-218-2, TGFB), cell signaling protein (CDH1), DNA repair proteins (BRCA1, BRCA2, EXO1, RAD51, XRCC2, ECCR1, ERCC4, XPC, ERCC2), and others (HLA-DRB1, INSIG2, GCNT1P5) have been found to be associated with various cancers like cancers of breast, bladder, cervix, colon, lung, prostate, etc. in different studies with Bangladeshi population. In this review article, we have discussed these gene polymorphisms associated with cancers in the Bangladeshi population, and also made a comparison with other ethnic groups. This will probably be helpful in understanding drug effects, drug resistance, and personalized medicine in the population of this region.


Assuntos
Arilamina N-Acetiltransferase , MicroRNAs , Neoplasias , Arilamina N-Acetiltransferase/genética , Bangladesh/epidemiologia , Estudos de Casos e Controles , Citocromo P-450 CYP1A1/genética , Proteínas de Ligação a DNA/genética , Feminino , Predisposição Genética para Doença/genética , Humanos , Masculino , Neoplasias/genética , Polimorfismo Genético/genética , Proteína Grupo D do Xeroderma Pigmentoso/genética
16.
PLoS One ; 17(1): e0261341, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35061708

RESUMO

The increasing incidence of prostate cancer (PCa) indicates an urgent need for the development of new effective drug therapy. There are limited options to treat the PCa, this study tried to determine a new therapy option for this acute cancer. Androgen-independent PCa cell lines PC3 and DU145 were treated with different melatonin concentrations (0.1~3.5 mM) for 1~3 days and assessed cell migration, cell invasion, cycle arrest in G0/G1 phase as well as apoptosis. We utilized RNA-seq technology to analyze the transcriptional misregulation pathways in DU145 prostate cancer cell line with melatonin (0.5 mM) treatment. Data revealed 20031 genes were up and down-regulated, there were 271 genes that differentially expressed: 97 up-regulated (P<0.05) and 174 down-regulated (P<0.05) genes. Furthermore, RNA-seq results manifested that the melatonin treatment led to a significant increase in the expression levels of HPGD, IL2Rß, NGFR, however, IGFBP3 and IL6 (P <0.05) had decreased expression levels. The immunoblot assay revealed the expression of IL2Rß and NGFR genes was up-regulated, qPCR confirmed the gene expression of HPGD and IL2RB were also up-regulated in Du145 cells. Consequently, we probed mechanisms that generate kinetic patterns of NF-κB-dependent gene expression in PCa cells responding to a NF-κB-activation, the significant results were indicated by the inhibition of the NF-kB pathway via IL2Rß actions. Based on our investigation, it could be concluded that melatonin is a chemotherapeutic molecule against PCa and provides a new idea for clinical therapy of PCa.


Assuntos
Neoplasias da Próstata , Humanos , Masculino
17.
Anticancer Agents Med Chem ; 22(8): 1561-1570, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34102992

RESUMO

BACKGROUND: Fomitopsis officinalis (Vill. ex Fr. Bond. et Sing) is a medicinal mushroom, commonly called 'Agarikon'; it has traditionally been used to treat cough and asthma in the Mongolian population. OBJECTIVE: The objective of the study was to examine the significance of biological activity of F. officinalis and evaluation of the antioxidant activity and anticancer activity of six fractions of F. officinalis residues (Fo1-powder form dissolved in ethanol, Fo2-petroleum ether residue, Fo3-chloroformic, Fo4-ethylacetate, Fo5-buthanolic, and Fo6-waterethanolic) against hepatocellular carcinoma cells. METHODS: We performed in vitro studies of cell proliferation and viability assay, annexin V-FITC/Propidium Iodide assay, and NF-kB signaling pathway by immunoblot analysis. RESULTS: Our findings revealed that all six fractions/extracts have antioxidant activity, and somehow, they exert anticancerous effects against cancer cells. In cancerous cell lines (HepG2 and LO2), Fo3 chloroformic extract promoted the cancer cell apoptosis and cell viability, activated G2/M-phase cell cycle, and selectively induced NF-kB proteins, revealing as a novel antitumor extract. CONCLUSION: This study reports that Fo3-chloroformic extract is rich in antitumor activity, which was previously not investigated in cancer. To develop the impact of F. officinalis among natural products to treat/prevent oxidative stress disorders or cancers, further examinations of F. officinalis are needed to develop new natural drugs to treat cancer. However, this study assessed only one extract, Fo3-chloroformic, which has a significant impact against cancer cell lines.


Assuntos
Agaricales , Carcinoma Hepatocelular , Neoplasias Hepáticas , Antioxidantes/química , Antioxidantes/farmacologia , Apoptose , Carcinoma Hepatocelular/tratamento farmacológico , Linhagem Celular , Proliferação de Células , Coriolaceae , Humanos , Neoplasias Hepáticas/tratamento farmacológico , NF-kappa B , Extratos Vegetais/farmacologia
18.
Curr Med Chem ; 29(13): 2274-2289, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34382520

RESUMO

BACKGROUND: Cancer cells are usually recognized as foreign particles by the immune cells. Mounting evidence suggest an important link between toll-like receptors (TLRs) and carcinogenesis. This review article focused on the role of TLRs, especially TLR4, in breast cancer. METHODS: Research data on TLRs and cancer was explored in PubMed, Scopus, Google Scholar and reviewed. Although some pioneer works are referenced, papers published in the last ten years were mostly cited. RESULTS: TLRs are widely investigated pattern recognition receptors (PRR), and TLR4 is the most studied TLRs, implicated with the occurrence of several types of cancers, including breast cancer. TLR4 activation occurs via the binding of its ligand lipopolysaccharide (LPS), a component of the outer membrane of gram-negative bacteria. Upon LPS binding, TLR4 dimerizes and recruits downstream signalling and/or adapter molecules, leading to gene expression related to cancer cell proliferation, survival, invasion, and metastasis. Although LPS/TLR4 signalling seems a single signal transduction pathway, the TLR4 activation results in the activation of multiple diverse intracellular networks with huge cellular responses in both immune and cancer cells. The role of TLR4 in the growth, invasion, and metastasis of breast cancer is attracting huge attention in oncology research. Several clinical and preclinical studies utilize both TLR4 agonists and antagonists as a treatment option for cancer therapy, either as monotherapy or adjuvants for vaccine development. CONCLUSION: This review narrates the role of LPS/TLR4 signalling in breast cancer development and future prospects for targeting LPS/TLR4 axis in the treatment of breast cancer.


Assuntos
Neoplasias da Mama , Lipopolissacarídeos , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/metabolismo , Feminino , Humanos , Ligantes , Transdução de Sinais , Receptor 4 Toll-Like/metabolismo , Receptores Toll-Like
19.
Anticancer Agents Med Chem ; 22(6): 1111-1118, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34170813

RESUMO

BACKGROUND: Triple Negative Breast Cancer (TNBC) is considered as the most deadly subtype of breast cancer, because of heterogeneity, less treatment options and resistance to chemotherapy. OBJECTIVE: To find out an efficient chemotherapeutic options, in this study we have investigated the combined therapy of 5-Fluorouracil (5-FU) and thymoquinone (TQ) against TNBC cell lines BT-549 and MDA-MB-231. METHODS: We have tested 5-FU and TQ alone and in combination (5-FU + TQ) to observe the cellular growth, cell cycle and apoptosis status of BT-549 and MDA-MB-231 cells. Also we have measured the mRNA level expression of genes related to cell cycle and apoptosis. RESULTS: Experimental results suggest that both of 5-FU and TQ are effective in controlling cell growth, cell cycle and inducing apoptosis, but their combination is much more effective. 5-FU was found to be more effective in controlling cell growth, while TQ was found to be more effective in inducing apoptosis, but in both cases, their combination was most effective. TQ was found more effective in increasing and BAX/BCL-2 ratio, while 5-FU was more effective in inhibiting thymidylate synthase. They showed significant increasing effects on caspases and P53 and decreasing effect on CDK-2, where their combination was found most effective. CONCLUSION: Thus, TQ and 5-FU probably showed synergistic effect on both of cell cycle and apoptosis of tested TNBC cell lines. Our study reveals that TQ can synergise 5-FU action, and increase its anticancer efficiency against TNBC cells, which might be good choice in drug development for TNBC treatment.


Assuntos
Neoplasias de Mama Triplo Negativas , Apoptose , Benzoquinonas/farmacologia , Benzoquinonas/uso terapêutico , Linhagem Celular Tumoral , Proliferação de Células , Fluoruracila/farmacologia , Humanos , Neoplasias de Mama Triplo Negativas/tratamento farmacológico , Neoplasias de Mama Triplo Negativas/metabolismo
20.
Anticancer Agents Med Chem ; 22(3): 499-514, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34802408

RESUMO

Phytochemicals are being used for thousands of years to prevent dreadful malignancy. Side effects of existing allopathic treatment have also initiated intense research in the field of bioactive phytochemicals. Gallic acid, a natural polyphenolic compound, exists freely as well as in polymeric forms. The anti-cancer properties of gallic acid are indomitable by a variety of cellular pathways such as induction of programmed cell death, cell cycle apprehension, reticence of vasculature and tumor migration, and inflammation. Furthermore, gallic acid is found to show synergism with other existing chemotherapeutic drugs. Therefore, the antineoplastic role of gallic acid suggests its promising therapeutic candidature in the near future. The present review describes all these aspects of gallic acid at a single platform. In addition nanotechnology-mediated approaches are also discussed to enhance bioavailability and therapeutic efficacy.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Ácido Gálico/farmacologia , Neoplasias/tratamento farmacológico , Oncogenes/efeitos dos fármacos , Compostos Fitoquímicos/farmacologia , Antineoplásicos Fitogênicos/química , Proliferação de Células/efeitos dos fármacos , Ácido Gálico/química , Humanos , Neoplasias/patologia , Compostos Fitoquímicos/química
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