Document Detail


Endoplasmic reticulum stress inducers, but not imatinib, sensitize Philadelphia chromosome-positive leukemia cells to TRAIL-mediated apoptosis.
MedLine Citation:
PMID:  21466892     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Philadelphia-chromosome (Ph1)-positive leukemia cells frequently express death receptors DR4/DR5 for tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) and show high TRAIL-sensitivity. It has been reported that imatinib damaged cardiomyocytes by triggering endoplasmic reticulum (ER) stress and that ER stress inducers intensified TRAIL-sensitivity of some cancer cells by upregulating DR4/DR5 expression. In fact, ER stress inducers enhanced TRAIL-sensitivity of Ph1-positive leukemia cells by upregulating DR4/DR5 expression. In contrast, imatinib did not induce ER stress responses and unexpectedly downregulated DR4/DR5 expression, indicating that sensitization of Ph1-positive leukemia cells to TRAIL-mediated cellular immunity by imatinib through upregulation of DR4/DR5 expression is unlikely.
Authors:
Xiaochun Zhang; Takeshi Inukai; Koshi Akahane; Kinuko Hirose; Itaru Kuroda; Hiroko Honna; Kumiko Goi; Keiko Kagami; Tetsuzo Tauchi; Hideo Yagita; Kanji Sugita
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-4-3
Journal Detail:
Title:  Leukemia research     Volume:  -     ISSN:  1873-5835     ISO Abbreviation:  -     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-4-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7706787     Medline TA:  Leuk Res     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Pediatrics, School of Medicine, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi 409-3898, Japan.
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