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Delphinidin sensitizes prostate cancer cells to TRAIL-induced apoptosis, by inducing DR5 and causing caspase-mediated HDAC3 cleavage.

Authors
 Hyeonseok Ko  ;  Mi-Hyeon Jeong  ;  Hyelin Jeon  ;  Gi-Jun Sung  ;  Youngsin So  ;  InKi Kim  ;  JaeKyoung Son  ;  Sang-wook Lee  ;  Ho-Geun Yoon  ;  Kyung-Chul Choi 
Citation
 ONCOTARGET , Vol.6(12) : 9970-9984, 2015 
Journal Title
 ONCOTARGET 
Issue Date
2015
MeSH
Anthocyanins/administration & dosage ; Anthocyanins/pharmacology* ; Antineoplastic Combined Chemotherapy Protocols/pharmacology* ; Apoptosis/drug effects ; Caspases/metabolism ; Cell Line, Tumor ; Drug Synergism ; Histone Deacetylases/metabolism* ; Humans ; Male ; Prostatic Neoplasms/drug therapy* ; Prostatic Neoplasms/metabolism ; Prostatic Neoplasms/pathology ; Receptors, TNF-Related Apoptosis-Inducing Ligand/biosynthesis* ; Receptors, TNF-Related Apoptosis-Inducing Ligand/metabolism ; TNF-Related Apoptosis-Inducing Ligand/administration & dosage ; TNF-Related Apoptosis-Inducing Ligand/pharmacology* ; Transfection
Keywords
HDAC3 ; TRAIL ; apoptosis ; delphinidin ; prostate cancer
Abstract
TRAIL can induce apoptosis in some cancer cells and is an immune effector in the surveillance and elimination of developing tumors. Yes, some cancers are resistant to TRAIL. Delphinidin, a polyphenolic compound contained in brightly colored fruits and vegetables, has anti-inflammatory, anti-oxidant, and anti-tumorigenic activities. Here we showed that delphinidin sensitized TRAIL-resistant human prostate cancer cells to undergo apoptosis. Cells treated with delphinidin and TRAIL activated the extrinsic and intrinsic pathways of caspase activation. TRAIL-induced apoptosis in prostate cancer cells pretreated with delphinidin was dependent on death receptor 5 (DR5) and downstream cleavage of histone deacetylase 3 (HDAC3). In conclusion, delphinidin sensitizes prostate cancer cells to TRAIL-induced apoptosis by inducing DR5, thus causing caspase-mediated HDAC3 cleavage. Our data reveal a potential way of chemoprevention of prostate cancer by enabling TRAIL-mediated apoptosis.
Files in This Item:
T201501326.pdf Download
DOI
10.18632/oncotarget.3667
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Biochemistry and Molecular Biology (생화학-분자생물학교실) > 1. Journal Papers
Yonsei Authors
Yoon, Ho Geun(윤호근) ORCID logo https://orcid.org/0000-0003-2718-3372
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/140032
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