Endoplasmic reticulum calcium pool depletion-induced apoptosis is coupled with activation of the death receptor 5 pathway

Thapsigargin (TG), by inducing perturbations in cellular Ca(2+) homeostasis, has been shown to induce apoptosis. The molecular mechanisms of Ca(2+) perturbation-induced apoptosis are not fully understood. In this study, we demonstrate for the first time that TG-mediated perturbations in Ca(2+) homeo...

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Veröffentlicht in:Oncogene 2002-04, Vol.21 (17), p.2623-2633
Hauptverfasser: QIN HE, DONG IK LEE, RONG RONG, MYOUNGHEE YU, XIUQUAN LUO, KLEIN, Michael, EL-DEIRY, Wafik S, YING HUANG, HUSSAIN, Arif, SHEIKH, M. Saeed
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container_end_page 2633
container_issue 17
container_start_page 2623
container_title Oncogene
container_volume 21
creator QIN HE
DONG IK LEE
RONG RONG
MYOUNGHEE YU
XIUQUAN LUO
KLEIN, Michael
EL-DEIRY, Wafik S
YING HUANG
HUSSAIN, Arif
SHEIKH, M. Saeed
description Thapsigargin (TG), by inducing perturbations in cellular Ca(2+) homeostasis, has been shown to induce apoptosis. The molecular mechanisms of Ca(2+) perturbation-induced apoptosis are not fully understood. In this study, we demonstrate for the first time that TG-mediated perturbations in Ca(2+) homeostasis are coupled with activation of the death receptor 5 (DR5)-dependent apoptotic pathway in human cancer cells. TG selectively upregulated DR5 but had no effect on the expression of the other TRAIL receptor, DR4. TG also upregulated the expression of the DR5 ligand TRAIL (tumor necrosis factor-related apoptosis inducing ligand), albeit in a cell-type specific manner. TG-induced apoptosis has been shown to be associated with activation of the mitochondrial pathway. We found that TG upregulation of DR5 and TRAIL was coupled with caspase 8 activation and Bid cleavage, suggesting that the TG-regulated DR5 pathway could be linked to the mitochondrial pathway. TG enhanced not only DR5 mRNA stability but also increased induction of the DR5 genomic promoter-reporter gene. The TG-induced increase in DR5 expression appeared to occur as a consequence of TG-induced endoplasmic reticulum (ER) Ca(2+) pool depletion. Thus, we report our novel findings that ER Ca(2+) pool depletion-induced apoptotic signals are mediated, at least in part, via a DR5-dependent apoptotic pathway and there appears to be a cross-talk between the death receptor and mitochondrial pathways.
doi_str_mv 10.1038/sj.onc.1205345
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Saeed</creator><creatorcontrib>QIN HE ; DONG IK LEE ; RONG RONG ; MYOUNGHEE YU ; XIUQUAN LUO ; KLEIN, Michael ; EL-DEIRY, Wafik S ; YING HUANG ; HUSSAIN, Arif ; SHEIKH, M. Saeed</creatorcontrib><description>Thapsigargin (TG), by inducing perturbations in cellular Ca(2+) homeostasis, has been shown to induce apoptosis. The molecular mechanisms of Ca(2+) perturbation-induced apoptosis are not fully understood. In this study, we demonstrate for the first time that TG-mediated perturbations in Ca(2+) homeostasis are coupled with activation of the death receptor 5 (DR5)-dependent apoptotic pathway in human cancer cells. TG selectively upregulated DR5 but had no effect on the expression of the other TRAIL receptor, DR4. TG also upregulated the expression of the DR5 ligand TRAIL (tumor necrosis factor-related apoptosis inducing ligand), albeit in a cell-type specific manner. TG-induced apoptosis has been shown to be associated with activation of the mitochondrial pathway. 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Psychology ; Homeostasis ; Humans ; Ligands ; Luciferases - metabolism ; Male ; Membrane Glycoproteins - metabolism ; Mitochondria ; Mitochondria - metabolism ; Molecular and cellular biology ; Molecular modelling ; mRNA stability ; Receptors, TNF-Related Apoptosis-Inducing Ligand ; Receptors, Tumor Necrosis Factor - metabolism ; Reporter gene ; Reverse Transcriptase Polymerase Chain Reaction ; RNA, Messenger - biosynthesis ; RNA, Messenger - genetics ; Thapsigargin ; Thapsigargin - pharmacology ; TNF-Related Apoptosis-Inducing Ligand ; TRAIL protein ; Tumor Cells, Cultured - drug effects ; Tumor Cells, Cultured - metabolism ; Tumor Necrosis Factor-alpha - metabolism ; Tumor necrosis factor-TNF ; Up-Regulation</subject><ispartof>Oncogene, 2002-04, Vol.21 (17), p.2623-2633</ispartof><rights>2002 INIST-CNRS</rights><rights>COPYRIGHT 2002 Nature Publishing Group</rights><rights>Copyright Nature Publishing Group Apr 18, 2002</rights><rights>Macmillan Publishers Limited 2002.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c485t-ccf747ddf9b85410341c3a4f48a6deff0b3248f5a479a6848971184decc0f5c93</citedby><cites>FETCH-LOGICAL-c485t-ccf747ddf9b85410341c3a4f48a6deff0b3248f5a479a6848971184decc0f5c93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=13654613$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11965535$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>QIN HE</creatorcontrib><creatorcontrib>DONG IK LEE</creatorcontrib><creatorcontrib>RONG RONG</creatorcontrib><creatorcontrib>MYOUNGHEE YU</creatorcontrib><creatorcontrib>XIUQUAN LUO</creatorcontrib><creatorcontrib>KLEIN, Michael</creatorcontrib><creatorcontrib>EL-DEIRY, Wafik S</creatorcontrib><creatorcontrib>YING HUANG</creatorcontrib><creatorcontrib>HUSSAIN, Arif</creatorcontrib><creatorcontrib>SHEIKH, M. Saeed</creatorcontrib><title>Endoplasmic reticulum calcium pool depletion-induced apoptosis is coupled with activation of the death receptor 5 pathway</title><title>Oncogene</title><addtitle>Oncogene</addtitle><description>Thapsigargin (TG), by inducing perturbations in cellular Ca(2+) homeostasis, has been shown to induce apoptosis. The molecular mechanisms of Ca(2+) perturbation-induced apoptosis are not fully understood. In this study, we demonstrate for the first time that TG-mediated perturbations in Ca(2+) homeostasis are coupled with activation of the death receptor 5 (DR5)-dependent apoptotic pathway in human cancer cells. TG selectively upregulated DR5 but had no effect on the expression of the other TRAIL receptor, DR4. TG also upregulated the expression of the DR5 ligand TRAIL (tumor necrosis factor-related apoptosis inducing ligand), albeit in a cell-type specific manner. TG-induced apoptosis has been shown to be associated with activation of the mitochondrial pathway. 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Thus, we report our novel findings that ER Ca(2+) pool depletion-induced apoptotic signals are mediated, at least in part, via a DR5-dependent apoptotic pathway and there appears to be a cross-talk between the death receptor and mitochondrial pathways.</description><subject>Ageing, cell death</subject><subject>Apoptosis</subject><subject>Apoptosis Regulatory Proteins</subject><subject>Biological and medical sciences</subject><subject>Blotting, Northern</subject><subject>Blotting, Western</subject><subject>Calcium (reticular)</subject><subject>Calcium - metabolism</subject><subject>Calcium homeostasis</subject><subject>Calcium signalling</subject><subject>Cancer</subject><subject>Caspase 8</subject><subject>Caspase 9</subject><subject>Caspases - metabolism</subject><subject>Cell cycle</subject><subject>Cell physiology</subject><subject>Death</subject><subject>DNA Primers - chemistry</subject><subject>Endoplasmic reticulum</subject><subject>Endoplasmic Reticulum - metabolism</subject><subject>Enzyme Activation</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. 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subjects Ageing, cell death
Apoptosis
Apoptosis Regulatory Proteins
Biological and medical sciences
Blotting, Northern
Blotting, Western
Calcium (reticular)
Calcium - metabolism
Calcium homeostasis
Calcium signalling
Cancer
Caspase 8
Caspase 9
Caspases - metabolism
Cell cycle
Cell physiology
Death
DNA Primers - chemistry
Endoplasmic reticulum
Endoplasmic Reticulum - metabolism
Enzyme Activation
Female
Fundamental and applied biological sciences. Psychology
Homeostasis
Humans
Ligands
Luciferases - metabolism
Male
Membrane Glycoproteins - metabolism
Mitochondria
Mitochondria - metabolism
Molecular and cellular biology
Molecular modelling
mRNA stability
Receptors, TNF-Related Apoptosis-Inducing Ligand
Receptors, Tumor Necrosis Factor - metabolism
Reporter gene
Reverse Transcriptase Polymerase Chain Reaction
RNA, Messenger - biosynthesis
RNA, Messenger - genetics
Thapsigargin
Thapsigargin - pharmacology
TNF-Related Apoptosis-Inducing Ligand
TRAIL protein
Tumor Cells, Cultured - drug effects
Tumor Cells, Cultured - metabolism
Tumor Necrosis Factor-alpha - metabolism
Tumor necrosis factor-TNF
Up-Regulation
title Endoplasmic reticulum calcium pool depletion-induced apoptosis is coupled with activation of the death receptor 5 pathway
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