scholarly journals Trichostatin A and Zebularine along with E-cadherin re-expression enhance tumour necrosis factor-related apoptosis-inducing ligand (TRAIL)-mediated cell cycle arrest in human breast adenocarcinoma cells

2021 ◽  
pp. 26-41
Author(s):  
Sonia How Ming Wong ◽  
Chee-Mun Fang ◽  
Hwei-San Loh ◽  
Siew Ching Ngai
Keyword(s):  
Breast Cancer ◽  
Tumour Necrosis ◽  
Trichostatin A ◽  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Adenocarcinoma Cells ◽  
Anti Cancer ◽  
Necrosis Factor ◽  
E Cadherin

Breast cancer is the leading cause of death among women in which its definite cure remains uncovered. Tumour necrosis factor-related apoptosis inducing ligand (TRAIL) is a potential anti-cancer agent due to its selective killing towards cancer cells while sparing the healthy cells. However, it is limited by the development of TRAIL resistance. With the attempt to overcome TRAIL resistance, this research embarked to study the effect of epigenetic drugs, Trichostatin A (TSA) and Zebularine (Zeb) along with E-cadherin re-expression on anti-cancer effect in human breast adenocarcinoma cells. The MDA-MB-231 re-expressed with E-cadherin (231-EGFP) was treated with TSA and Zeb before being treated with TRAIL (TZT) to compare the effect on MDA-MB-231 and MCF-7. The cell viability, cell cycle and migration assays were conducted on these cells, prior to reverse-transcription-polymerase chain reaction (RT-PCR) targeted on proliferating cell nuclear antigen (PCNA), cyclin-dependent kinase 2 (CDK2), matrix metalloproteinase 9 (MMP9). TZT induced a significant increase in G0/G1-arrested cell population and reduction in cell viability in 231-EGFP. These were verified by the suppression of PCNA and CDK2 mRNA expression. However, there was a negligible effect to reduce the cell migration of the invasive MDA-MB-231 and 231-EGFP cells in accordance with the lack of down-regulation of MMP9. In conclusion, this research shows that TSA and Zeb have sensitized breast cancer towards TRAIL treatment in 231-EGFP cells, validating the potentiality of E-cadherin as a biomarker of TRAIL treatment efficacy in the invasive breast cancer.

scholarly journals Anti-Cancer Effect and Mechanisms of Action of Mikania cordata Plant Extract on MCF-7 Human Breast Adenocarcinoma Cells

2015 ◽  
Vol 11 (2) ◽  
pp. 80-92 ◽  
Author(s):  
T.G.C. Uy ◽  
A.M. Licuanan ◽  
G.E.D. Angeles ◽  
M.L.C.C. Bote ◽  
E.A.B. Macauyag ◽  
...  
Keyword(s):  
Plant Extract ◽  
Mechanisms Of Action ◽  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Adenocarcinoma Cells ◽  
Anti Cancer ◽  
Mcf 7

Anti-cancer Effects of Epigenetics Drugs Scriptaid and Zebularine in Human Breast Adenocarcinoma Cells

2021 ◽  
Vol 21 ◽  
Author(s):  
Zhi Hung Yap ◽  
Wei Yang Kong ◽  
Abdur Rahmaan Azeez ◽  
Chee-Mun Fang ◽  
Siew Ching Ngai
Keyword(s):  
Breast Cancer ◽  
Cell Cycle ◽  
Cell Migration ◽  
Histochemical Staining ◽  
Breast Adenocarcinoma ◽  
Nuclear Chromatin ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Anti Cancer ◽  
Mcf 7

Background: High relapse and metastasis progression in breast cancer patients have prompted the need to explore alternative treatments. Epigenetic therapy has emerged as an attractive therapeutic strategy due to the reversibility of epigenome structures. Objective: This study investigated the anti-cancer effects of epigenetic drugs scriptaid and zebularine in human breast adenocarcinoma MDA-MB-231 and MCF-7 cells. Methods: First, the half maximal inhibitory concentration (IC50) of scriptaid, zebularine and the combination of both drugs on human breast adenocarcinoma MDA-MB-231 cells was determined. Next, MDA-MB-231 and MCF-7 cells were treated with scriptaid, zebularine and the combination of both. After treatments, the anti-cancer effects were evaluated via cell migration assay, cell cycle analysis and apoptotic studies, which included histochemical staining and reverse-transcriptase polymerase chain reaction (RT-PCR) of the apoptotic genes. Results: Both epigenetic drugs inhibited cell viability in a dose-dependent manner with 2 nM scriptaid, 8 µM zebularine and combination of 2 nM scriptaid and 2 µM zebularine. Both MDA-MB-231 and MCF-7 cells exhibited a reduction in cell migration after the treatments. In particular, MDA-MB-231 cells exhibited a significant reduction in cell migration (p < 0.05) after the treatments of zebularine and the combination of scriptaid and zebularine. Besides, cell cycle analysis demonstrated that scriptaid and the combination of both drugs could induce cell cycle arrest at the G0/G1 phase in both MDA-MB-231 and MCF-7 cells. Furthermore, histochemical staining allowed the observation of apoptotic features, such as nuclear chromatin condensation, cell shrinkage, membrane blebbing, nuclear chromatin fragmentation and cytoplasmic extension, in both MDA-MB-231 and MCF-7 cells after the treatments. Further apoptotic studies revealed that the upregulation of pro-apoptotic Bax, downregulation of anti-apoptotic Bcl-2 and elevation of Bax/Bcl-2 ratio were found in MDA-MB-231 cells treated with zebularine and MCF-7 cells treated with all drug regimens. Conclusion: Collectively, these findings suggest that scriptaid and zebularine are potential anti-cancer drugs, either single or in combination, for the therapy of breast cancer. Further investigations of the gene regulatory pathways directed by scriptaid and zebularine are definitely warranted in the future.

scholarly journals Analysis and Identification of Active Compounds from Gami-Soyosan Toxic to MCF-7 Human Breast Adenocarcinoma Cells

Biomolecules ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 272 ◽  
Author(s):  
Mi-Yeon Jung ◽  
Chang-Seob Seo ◽  
Seon-Eun Baek ◽  
Jaemin Lee ◽  
Myoung-Sook Shin ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Gallic Acid ◽  
Parp Cleavage ◽  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Decursinol Angelate ◽  
Adenocarcinoma Cells ◽  
Er Positive ◽  
Mcf 7

Gami-soyosan is a medicinal herbal formulation prescribed for the treatment of menopausal symptoms, including hot flashes and osteoporosis. Gami-soyosan is also used to treat similar symptoms experienced by patients with breast cancer. The incidence of breast cancer in women receiving hormone replacement therapy is a big burden. However, little is known about the components and their mechanism of action that exhibit these beneficial effects of Gami-soyosan. The aim of this study was to simultaneously analyze compounds of Gami-soyosan, and determine their cytotoxic effects on estrogen receptor (ER)-positive MCF-7 human breast adenocarcinoma cells. We established a simultaneous analysis method of 18 compounds contained in Gami-soyosan and found that, among the various compounds in Gami-soyosan, gallic acid (1), decursin (17), and decursinol angelate (18) suppressed the viability of MCF-7 cells. Gallic acid (1), decursin (17), and decursinol angelate (18) induced apoptotic cell death and significantly increased poly (ADP-ribose) polymerase (PARP) cleavage and the Bcl-2-associated X protein/ B-cell lymphoma 2 (Bax/Bcl-2) ratio. Decursin (17) increased the expression of cleaved caspases-8, -9, -7, and -3. Decursinol angelate (18) increased the expression of cleaved caspase-8 and -7. These three components altered the different apoptosis signal pathways. Collectively, gallic acid (1), decursin (17), and decursinol angelate (18) may be used to inhibit cell proliferation synergistically in patients with ER-positive breast cancer.

scholarly journals Change in the Expression of BAK، FAS، BAX، TNF-A، BCL-2 and Survivin Apoptosis Genes of the Human Breast Adenocarcinoma Cells (MCF-7) by Staphylococcal Enterotoxin B

2019 ◽  
Author(s):  
Sara Afzali ◽  
Abbas Doosti ◽  
Mansour Heidari ◽  
Nahid Babaei ◽  
Parvaneh Keshavarz
Keyword(s):  
Staphylococcal Enterotoxin ◽  
Breast Adenocarcinoma ◽  
Control Group ◽  
Staphylococcal Enterotoxin B ◽  
Type B ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Adenocarcinoma Cells ◽  
Enterotoxin B ◽  
Mcf 7

Introduction: Breast cancer is one of the most prevalent malignancies among women. Patients whose suffering from this condition, as a result of the use of conventional therapies often have a poor response to treatment and the relapse among them is frequent. In this study, the effects of staphylococcal enterotoxin type B on BAK، FAS، BAX، TNF-a، BCL-2 و Survivin genes expression in human breast adenocarcinoma cells (MCF-7) was examined. Staphylococcal enterotoxin B is a powerful member of the Staphylococcus aureus toxins family, which is known as an anticancer agent with potential for killing cancer cells. Methods: The experimental study was carried out at the Biotechnology Research Center of Islamic Azad University, Shahrekord Branch. By using Lipofectamine 2000 reagent, MCF-7  cells transfected with the pcDNA3.1(+)-seb (recombinant) and  pcDNA3.1(+) (non-recombinant)  plasmids and were selected by culturing in a selective medium of RPMI- 1640 containing 600 μg / mL antibiotic G418. Then, the expression of BAK, FAS, BAX, TNF-a, BCL-2, and Survivin genes in transfected cells were analyzed by real time PCR. Student's t-test, SPSS Inc., Chicago, IL; Version 16 and also Excel program for statistical analysis were used. Results: The results of this study indicated that staphylococcal enterotoxin type B (SEB) remarkably changes the expression of apoptotic related genes in MCF-7 cell line. It was observed a significant increase in the expression of BAK, FAS, BAX, and TNF-a genes, the expression of BCL-2 and Survivin genes significantly decreased compared to the control group (P=0/032). Conclusion: Staphylococcal enterotoxin type B has an inhibitory effect on the growth, proliferation and invasion of breast adenocarcinoma cells through altering the expression of the genes involved in the apoptosis process. Therefore, it seems that there is a good research field for the use of this toxin in the control and treatment of human breast adenocarcinoma.

Ultrastructural Assessment of 2-(acridin-9-ylmethylene)-N-phenylhydrazinecarbothioamide activity on human breast adenocarcinoma cells

Micron ◽  
2016 ◽  
Vol 90 ◽  
pp. 114-122 ◽  
Author(s):  
Sinara Mônica Vitalino de Almeida ◽  
Lúcia Patrícia Bezerra Gomes da Silva ◽  
Luiza Rayanna Amorim de Lima ◽  
Giovanna Barbarini Longato ◽  
Rafael José Ribeiro Padilha ◽  
...  
Keyword(s):  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Adenocarcinoma Cells
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