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Attenuative Effect of Diallyl Trisulfide on Caspase Activity in TNF-α-induced Triple Negative Breast Cancer Cells.
Anticancer Research 2023 June
BACKGROUND/AIM: Diallyl trisulfide (DATS) has been shown to prevent and inhibit carcinogenesis in cancer cells. We have previously shown DATS's ability to decrease the percentage of viable cells, inhibit cell migration and modulate genes involved in the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-B) and mitogen-activated protein kinase (MAPK) signaling.
MATERIALS AND METHODS: This study aimed to compare the efficacy of DATS in tumor necrosis factor alpha (TNF-α) induced MDA-MB-231 and MDA-MB-468 cells and investigate its role in cell-death signaling via cell cycle, flow cytometry, and caspase assay.
RESULTS: DATS exhibit a time-dependent accumulation of G2 /M phase cells in both cell lines, with higher effects in the MDA-MB-468 for all time points. DATS's ability to decrease the percentage of viable cells in both MDA-MB-231 and MDA-MB-468 cells was shown by a significant but slight increase of early and late apoptosis in the presence of DATS compared to control. Moreover, MDA-MB-468 cells showed more sensitivity to the DATS effect, evidenced by the higher percentage of apoptosis than MDA-MB-231 cells. The caspase studies showed a significant increase in caspase 3 and 8 activity in the presence of DATS, compared to control, in both cell lines. DATS showed no significant increase in caspase 9 activity in both cell lines compared to the control.
CONCLUSION: DATS-induced apoptosis in human breast cancer cells is mediated, at least in part, by cell cycle arrest and caspase activity. These findings provide information for future studies into the role of DATS in TNBC therapy and prevention.
MATERIALS AND METHODS: This study aimed to compare the efficacy of DATS in tumor necrosis factor alpha (TNF-α) induced MDA-MB-231 and MDA-MB-468 cells and investigate its role in cell-death signaling via cell cycle, flow cytometry, and caspase assay.
RESULTS: DATS exhibit a time-dependent accumulation of G2 /M phase cells in both cell lines, with higher effects in the MDA-MB-468 for all time points. DATS's ability to decrease the percentage of viable cells in both MDA-MB-231 and MDA-MB-468 cells was shown by a significant but slight increase of early and late apoptosis in the presence of DATS compared to control. Moreover, MDA-MB-468 cells showed more sensitivity to the DATS effect, evidenced by the higher percentage of apoptosis than MDA-MB-231 cells. The caspase studies showed a significant increase in caspase 3 and 8 activity in the presence of DATS, compared to control, in both cell lines. DATS showed no significant increase in caspase 9 activity in both cell lines compared to the control.
CONCLUSION: DATS-induced apoptosis in human breast cancer cells is mediated, at least in part, by cell cycle arrest and caspase activity. These findings provide information for future studies into the role of DATS in TNBC therapy and prevention.
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