Induction of apoptosis in human breast adenocarcinoma MCF-7 cells by pterocarnin A from the bark of Pterocarya stenoptera via the Fas-mediated pathway

2007 ◽  
Vol 18 (5) ◽  
pp. 555-562 ◽  
Author(s):  
Po-Lin Kuo ◽  
Ya-Ling Hsu ◽  
Shu-Chiao Sung ◽  
Wen-Chiu Ni ◽  
Ta-Chen Lin ◽  
...  
Keyword(s):  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Induction Of Apoptosis ◽  
Pterocarya Stenoptera ◽  
Mcf 7

scholarly journals Induction of Apoptosis and Cytotoxicity by Raphasatin in Human Breast Adenocarcinoma MCF-7 Cells

Molecules ◽  
2018 ◽  
Vol 23 (12) ◽  
pp. 3092 ◽  
Author(s):  
Muhammad Ibrahim ◽  
Saie Kntayya ◽  
Nooraini Mohd Ain ◽  
Renato Iori ◽  
Costas Ioannides ◽  
...  
Keyword(s):  
Cell Cycle ◽  
Cell Cycle Arrest ◽  
Chromatin Condensation ◽  
Annexin V ◽  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Cycle Arrest ◽  
Induction Of Apoptosis ◽  
Mcf 7

Glucoraphasatin (GRH), a glucosinolate present abundantly in the plants of the Brassicaceae family, is hydrolyzed by myrosinase to raphasatin, which is considered responsible for its cancer chemopreventive activity; however, the underlying mechanisms of action have not been investigated, particularly in human cell lines. The aims of this study are to determine the cytotoxicity of raphasatin, and to evaluate its potential to cause apoptosis and modulate cell cycle arrest in human breast adenocarcinoma MCF-7 cells. The cytotoxicity was determined following incubation of the cells with glucoraphasatin or raphasatin (0–100 µM), for 24, 48, and 72 h. GRH displayed no cytotoxicity as exemplified by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. When myrosinase was added to the incubation system to convert GRH to raphasatin, cytotoxicity was evident. Exposure of the cells to raphasatin stimulated apoptosis, as was exemplified by cell shrinkage, membrane blebbing, chromatin condensation, and nuclear fragmentation. Moreover, using Annexin V-FITC assay, raphasatin induced apoptosis, as witnessed by changes in cellular distribution of cells, at different stages of apoptosis; in addition, raphasatin caused the arrest of the MCF-7 cells at the G2 + M phase. In conclusion, raphasatin demonstrated cancer chemopreventive potential against human breast adenocarcinoma (MCF-7) cells, through induction of apoptosis and cell cycle arrest.

scholarly journals CYTOTOXIC ACTIVITY OF A MEDICINAL MANGROVE PLANT CERIOPS DECANDRA (GRIFF.) DING HOU LEAVES ON HUMAN BREAST ADENOCARCINOMA CELL LINE MCF-7

2018 ◽  
Vol 11 (12) ◽  
pp. 296
Author(s):  
Sukasini S ◽  
Bhargav Iyer M
Keyword(s):  
Cytotoxic Activity ◽  
Brine Shrimp ◽  
Cytotoxic Effect ◽  
Morphological Changes ◽  
Breast Adenocarcinoma ◽  
Phytochemical Screening ◽  
Human Breast ◽  
Human Breast Adenocarcinoma ◽  
Induction Of Apoptosis ◽  
Mcf 7

Objective: Ceriops decandra (Griff.) Ding Hou (Rhizophoraceae) is an evergreen mangrove tree widely used in folklore medicine for the treatment of several diseases. Concerning the presence of anticancer molecule in C. decandra, the present investigation was carried out to study the preliminary phytochemical screening, in vitro cytotoxic effect, and apoptotic induction of methanol extract of C. decandra.Methods: The preliminary phytochemical investigations were done using standard methods. Cytotoxic activity was analyzed in terms of brine shrimp (Artemia salina Leach) lethality bioassay. MTT (3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide) assay was used to evaluate the cell viability and growth inhibition of MCF-7 (human breast adenocarcinoma) cells after treatment with different doses of C. decandra extract. Cell morphological changes induced by the extract were observed using phase contrast inverted microscope. Induction of apoptosis was determined by DNA fragmentation assay.Results: Phytochemical screening revealed the presence of various potent phytochemicals. In the brine shrimp lethality bioassay, the LC50 of the extract was found to be 12.5 μg/mL, implying a promising cytotoxic effect. The MTT assay results showed increased inhibitory activity at a concentration-dependent manner and altered the cell morphology after exposure with C. decandra extract which exhibited typical apoptotic morphological changes. Furthermore, the characteristic DNA ladder pattern of C. decandra treated cells in agarose gel electrophoresis confirms the induction of apoptosis.Conclusion: The research revealed the cytotoxic effect of C. decandra on MCF-7 cells through its nature of induction of apoptosis.

Cytotoxicity evaluation of indomethacin-loaded polymeric nanoparticles in a human breast adenocarcinoma cell model/ Avaliação da citotoxicicidade de nanopartículas poliméricas contendo indometacina em modelo celular de adenocarcinoma de mama humano

2021 ◽  
Vol 7 (7) ◽  
pp. 67004-67014
Author(s):  
Camila Franco ◽  
Manoela Lunkes Silva ◽  
Altevir Rossato Viana ◽  
Aline Ferreira Ourique ◽  
Luciana Maria Fontanari Krause
Keyword(s):  
Cell Model ◽  
Polymeric Nanoparticles ◽  
Cáncer De Mama ◽  
Breast Adenocarcinoma ◽  
Human Breast ◽  
Adenocarcinoma Cell ◽  
Human Breast Adenocarcinoma ◽  
Mcf 7

Novas pesquisas indicam que anti-inflamatórios podem ser aplicados como agentes anti-cancerígenos como indometacina para hepatocarcinoma humano, canceres de colon e estômago. Como sabe-se, indometacina possui efeitos adversos gastrointestinais, cardiovasculares e renais. Uma vez que cancer de mama tem alta incidência e não há estudo da indometacina carreada em nanopartículas para esta aplicação, este estudo envolve o desenvolvimento de nanocapsulas de poli-epsilon-caprolactona carregadas com indometacina para a redução de citotoxicidade como agente quimioprotetor para cancer de mama. O nanocarreador foi preparado por método de deposição interfacial e sua caracterização foi realizada por determinação de pH, diâmetro médio e índice de polidispersão por espalhamento dinâmico de luz, potencial zeta por mobilidade eletroforética, eficiência de encapsulação por método de cromatografia líquida de alta eficiência e seu ensaio de citotoxicidade com linhagem de células queratinócitos (HaCaT) e células de cancer de mama (MCF-7). As formulações branca (C-NC) e contendo indometacina (Ind-OH-NC) mostraram leve pH ácido, diâmetros em torno de 200 nm e PDI0,2 com potencial zeta em torno de -20 mV e eficiência de encapsulação de 99% (1 mg.mL-1), cujo coeficiente de distribuição indicou efeito de permeação e retenção (efeito EPR). Ambas formulações não foram citotóxicas às células HaCaT, provando serem seguras às células normais e Ind-OH-NC teve uma permeação concentração e tempo-dependente e teve eficácia em reduzir a viabilidade celular da linhagem MCF-7.

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.

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