RT Journal Article
SR Electronic
T1 Up-regulation of Death Receptor 5/TRAIL-R2 Mediates Apoptosis Induced by <em>N,N’</em>-[(3,4-dimethoxyphenyl)methylene] Biscinnamide in Cancer Cells
JF Anticancer Research
JO Anticancer Res
FD International Institute of Anticancer Research
SP 5035
OP 5041
DO 10.21873/anticanres.14506
VO 40
IS 9
A1 HIROMI II
A1 SUSUMU NAKATA
A1 JUN'ICHI UENISHI
YR 2020
UL http://ar.iiarjournals.org/content/40/9/5035.abstract
AB Background/Aim: Based on the cytotoxic agent (−)-zampanolide, N,N’-(arylmethylene)bisamides were designed and synthesized as candidate anti-cancer agents. Among them, N,N’-[(3,4-dimethoxyphenyl)methylene]biscinnamide (DPMBC) was identified as the most potent cytotoxic analog against cancer cells. In this study, we investigated the mechanisms underlying DPMBC-induced cell death in HL-60 human promyelocytic leukemia and PC-3 human prostate cancer cells. Materials and Methods: Cell growth was assessed by the WST-8 assay. Induction of apoptosis was assessed by nuclear morphology, DNA ladder formation, and flow cytometry using Annexin V staining. Activation of factors in the apoptotic signaling pathway was assessed by western blot analyses. Knockdown of death receptor 5 (DR5) was performed using siRNA. Results: DPMBC up-regulated expression levels of DR5 protein and induced apoptosis through the extrinsic apoptotic pathway mediated by DR5 and caspases. Conclusion: DPMBC is an extrinsic apoptosis inducer, which has potential as a therapeutic agent for cancer therapy.