Document Detail


Dihydroheptaprenyl and dihydrodecaprenyl monophosphates induce apoptosis mediated by activation of caspase-3-like protease.
MedLine Citation:
PMID:  9461254     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Dolichyl phosphate, an essential carrier lipid in the biosynthesis of N-linked glycoprotein, has been found to induce apoptosis in rat glioma C6 cells and human monoblastic leukemia U937 cells. In the present study, dolichyl phosphate and structurally related compounds were examined regarding their apoptosis-inducing activities in U937 cells. Dihydroheptaprenyl and dihydrodecaprenyl phosphates, of which isoprene units are shorter than that of dolichyl phosphate, induced apoptosis in U937 cells. This phenomenon occurred in a dose- and time-dependent manner, as seen with dolichyl phosphate-induced apoptosis. Derivatives of the same isoprene units of dolichyl phosphate, such as dolichol, dolichal or dolichoic acid, did not induce DNA fragmentation. Farnesyl phosphate and geranylgeranyl phosphate also failed to induce apoptosis. During apoptosis, the caspase family of cysteine proteases play important roles. We observed that apoptosis induced by dihydroprenyl phosphate was mediated by caspase-3-like (CPP32-like) activation but not by caspase-1-like (ICE-like) activation. This caspase-3-like activation was inhibited by a specific inhibitor of caspase-3, DEVD-CHO, but not by an caspase-1 inhibitor YVAD-CHO. We interpret these results to mean that dihydroprenyl phosphates with more than seven isoprene units have apoptosis-inducing activity and that their signal is mediated by caspase-3-like activation.
Authors:
E Yasugi; K Nakata; Y Yokoyama; K Kano; T Dohi; M Oshima
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biochimica et biophysica acta     Volume:  1389     ISSN:  0006-3002     ISO Abbreviation:  Biochim. Biophys. Acta     Publication Date:  1998 Jan 
Date Detail:
Created Date:  1998-03-05     Completed Date:  1998-03-05     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0217513     Medline TA:  Biochim Biophys Acta     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  132-40     Citation Subset:  IM    
Affiliation:
Division of Biochemistry and Nutrition, Research Institute, International Medical Center of Japan, Tokyo. yasugi@imcj.go.jp
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MeSH Terms
Descriptor/Qualifier:
Apoptosis / drug effects*
Caspase 1
Caspase 3
Caspases*
Coumarins / metabolism
Cysteine Endopeptidases / metabolism*
Cysteine Proteinase Inhibitors / pharmacology
DNA Fragmentation / drug effects
Dolichol Phosphates / pharmacology
Enzyme Activation
Humans
Leukemia / metabolism
Molecular Structure
Oligopeptides / metabolism,  pharmacology
Polyisoprenyl Phosphates / pharmacology*
Tumor Cells, Cultured
Chemical
Reg. No./Substance:
0/Coumarins; 0/Cysteine Proteinase Inhibitors; 0/Dolichol Phosphates; 0/Oligopeptides; 0/Polyisoprenyl Phosphates; 0/acetyl-aspartyl-glutamyl-valyl-aspartyl-amino-4-methylcoumarin; 0/aspartyl-glutamyl-valyl-aspartal; 12698-55-4/dolichol monophosphate; 84744-41-2/dihydroheptaprenyl phosphate; 99103-20-5/dihydrodecaprenyl phosphate; EC 3.4.22.-/CASP3 protein, human; EC 3.4.22.-/Casp3 protein, rat; EC 3.4.22.-/Caspase 3; EC 3.4.22.-/Caspases; EC 3.4.22.-/Cysteine Endopeptidases; EC 3.4.22.36/Caspase 1

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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