Morphine, a potential antagonist of cisplatin cytotoxicity, inhibits cisplatin-induced apoptosis and suppression of tumor growth in nasopharyngeal carcinoma xenografts

Morphine is an opioid analgesic drug often used for pain relief in cancer patients. However, there is growing evidence that morphine may modulate tumor growth, progression and metastasis. In this study, we evaluated whether morphine modulates cisplatin-induced apoptosis in human nasopharyngeal carci...

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Veröffentlicht in:Scientific reports 2016-01, Vol.6 (1), p.18706-18706, Article 18706
Hauptverfasser: Cao, Long-Hui, Li, Hui-Ting, Lin, Wen-Qian, Tan, Hong-Ying, Xie, Lan, Zhong, Zhong-Jian, Zhou, Jian-Hua
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container_title Scientific reports
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Lin, Wen-Qian
Tan, Hong-Ying
Xie, Lan
Zhong, Zhong-Jian
Zhou, Jian-Hua
description Morphine is an opioid analgesic drug often used for pain relief in cancer patients. However, there is growing evidence that morphine may modulate tumor growth, progression and metastasis. In this study, we evaluated whether morphine modulates cisplatin-induced apoptosis in human nasopharyngeal carcinoma CNE-2 cells and whether morphine affects the antitumor activity of cisplatin on tumor growth in human nasopharyngeal carcinoma CNE-2 xenografts in nude mice. We showed that a pretreatment with morphine (1 μg/ml) inhibited the sensitivity of CNE-2 cells to cisplatin by inhibiting cisplatin-induced CNE-2 cell apoptosis, decreasing caspase-3 activity and increasing the Bcl-2/Bax ratio. However, a high dose of morphine (1000 μg/ml) had the opposite effect. We also showed that at a low dose, morphine enhances chemoresistance in an in vivo nasopharyngeal carcinoma (NPC) model by inhibiting cisplatin-induced apoptosis and decreasing neovascularization. Taken together, our results indicate that a low dose of morphine may lead to chemoresistance of cisplatin in NPC models in vitro and in vivo by inhibiting cisplatin-induced apoptosis and decreasing neovascularization.
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However, there is growing evidence that morphine may modulate tumor growth, progression and metastasis. In this study, we evaluated whether morphine modulates cisplatin-induced apoptosis in human nasopharyngeal carcinoma CNE-2 cells and whether morphine affects the antitumor activity of cisplatin on tumor growth in human nasopharyngeal carcinoma CNE-2 xenografts in nude mice. We showed that a pretreatment with morphine (1 μg/ml) inhibited the sensitivity of CNE-2 cells to cisplatin by inhibiting cisplatin-induced CNE-2 cell apoptosis, decreasing caspase-3 activity and increasing the Bcl-2/Bax ratio. However, a high dose of morphine (1000 μg/ml) had the opposite effect. We also showed that at a low dose, morphine enhances chemoresistance in an in vivo nasopharyngeal carcinoma (NPC) model by inhibiting cisplatin-induced apoptosis and decreasing neovascularization. Taken together, our results indicate that a low dose of morphine may lead to chemoresistance of cisplatin in NPC models in vitro and in vivo by inhibiting cisplatin-induced apoptosis and decreasing neovascularization.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/srep18706</identifier><identifier>PMID: 26729257</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>13 ; 13/2 ; 13/51 ; 692/308/409 ; 692/700/565/1436/1437 ; 692/700/565/1436/99 ; Analgesics ; Animal models ; Animals ; Antineoplastic Agents - pharmacology ; Antitumor activity ; Apoptosis ; Apoptosis - drug effects ; Bcl protein ; Bcl-2 protein ; bcl-2-Associated X Protein - genetics ; bcl-2-Associated X Protein - metabolism ; Carcinoma ; Caspase ; Caspase-3 ; Caspases - metabolism ; Cell Line, Tumor ; Cell Proliferation - drug effects ; Cell Survival - drug effects ; Chemoresistance ; Cisplatin ; Cisplatin - pharmacology ; Cytotoxicity ; Disease Models, Animal ; Dose-Response Relationship, Drug ; Drug Antagonism ; Gene Expression ; Humanities and Social Sciences ; Humans ; Metastases ; Mice ; Mice, Nude ; Morphine ; Morphine - pharmacology ; multidisciplinary ; Nasopharyngeal Carcinoma ; Nasopharyngeal Neoplasms - drug therapy ; Nasopharyngeal Neoplasms - metabolism ; Nasopharyngeal Neoplasms - pathology ; Opioids ; Pain ; Proto-Oncogene Proteins c-bcl-2 - genetics ; Proto-Oncogene Proteins c-bcl-2 - metabolism ; Science ; Throat cancer ; Tumor Burden ; Vascularization ; Xenograft Model Antitumor Assays ; Xenografts</subject><ispartof>Scientific reports, 2016-01, Vol.6 (1), p.18706-18706, Article 18706</ispartof><rights>The Author(s) 2016</rights><rights>Copyright Nature Publishing Group Jan 2016</rights><rights>Copyright © 2016, Macmillan Publishers Limited 2016 Macmillan Publishers Limited</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c504t-239ac89e4c245e1abcde24430ade02d895681faf389f0db7730bcee428f363b43</citedby><cites>FETCH-LOGICAL-c504t-239ac89e4c245e1abcde24430ade02d895681faf389f0db7730bcee428f363b43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4700493/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4700493/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,27924,27925,41120,42189,51576,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26729257$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Cao, Long-Hui</creatorcontrib><creatorcontrib>Li, Hui-Ting</creatorcontrib><creatorcontrib>Lin, Wen-Qian</creatorcontrib><creatorcontrib>Tan, Hong-Ying</creatorcontrib><creatorcontrib>Xie, Lan</creatorcontrib><creatorcontrib>Zhong, Zhong-Jian</creatorcontrib><creatorcontrib>Zhou, Jian-Hua</creatorcontrib><title>Morphine, a potential antagonist of cisplatin cytotoxicity, inhibits cisplatin-induced apoptosis and suppression of tumor growth in nasopharyngeal carcinoma xenografts</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><addtitle>Sci Rep</addtitle><description>Morphine is an opioid analgesic drug often used for pain relief in cancer patients. 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However, there is growing evidence that morphine may modulate tumor growth, progression and metastasis. In this study, we evaluated whether morphine modulates cisplatin-induced apoptosis in human nasopharyngeal carcinoma CNE-2 cells and whether morphine affects the antitumor activity of cisplatin on tumor growth in human nasopharyngeal carcinoma CNE-2 xenografts in nude mice. We showed that a pretreatment with morphine (1 μg/ml) inhibited the sensitivity of CNE-2 cells to cisplatin by inhibiting cisplatin-induced CNE-2 cell apoptosis, decreasing caspase-3 activity and increasing the Bcl-2/Bax ratio. However, a high dose of morphine (1000 μg/ml) had the opposite effect. We also showed that at a low dose, morphine enhances chemoresistance in an in vivo nasopharyngeal carcinoma (NPC) model by inhibiting cisplatin-induced apoptosis and decreasing neovascularization. Taken together, our results indicate that a low dose of morphine may lead to chemoresistance of cisplatin in NPC models in vitro and in vivo by inhibiting cisplatin-induced apoptosis and decreasing neovascularization.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>26729257</pmid><doi>10.1038/srep18706</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record>
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subjects 13
13/2
13/51
692/308/409
692/700/565/1436/1437
692/700/565/1436/99
Analgesics
Animal models
Animals
Antineoplastic Agents - pharmacology
Antitumor activity
Apoptosis
Apoptosis - drug effects
Bcl protein
Bcl-2 protein
bcl-2-Associated X Protein - genetics
bcl-2-Associated X Protein - metabolism
Carcinoma
Caspase
Caspase-3
Caspases - metabolism
Cell Line, Tumor
Cell Proliferation - drug effects
Cell Survival - drug effects
Chemoresistance
Cisplatin
Cisplatin - pharmacology
Cytotoxicity
Disease Models, Animal
Dose-Response Relationship, Drug
Drug Antagonism
Gene Expression
Humanities and Social Sciences
Humans
Metastases
Mice
Mice, Nude
Morphine
Morphine - pharmacology
multidisciplinary
Nasopharyngeal Carcinoma
Nasopharyngeal Neoplasms - drug therapy
Nasopharyngeal Neoplasms - metabolism
Nasopharyngeal Neoplasms - pathology
Opioids
Pain
Proto-Oncogene Proteins c-bcl-2 - genetics
Proto-Oncogene Proteins c-bcl-2 - metabolism
Science
Throat cancer
Tumor Burden
Vascularization
Xenograft Model Antitumor Assays
Xenografts
title Morphine, a potential antagonist of cisplatin cytotoxicity, inhibits cisplatin-induced apoptosis and suppression of tumor growth in nasopharyngeal carcinoma xenografts
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