LncRNA DSCAM‐AS1 acts as a sponge of miR‐137 to enhance Tamoxifen resistance in breast cancer

Objective To investigate the influence of long noncoding RNA (lncRNA) DSCAM‐AS1 on the propagation and apoptosis of Tamoxifen‐resistant (TR) breast cancer cells via regulation of mircoRNA (miR)‐137 and epidermal growth factor receptor pathway substrate 8 (EPS8). Methods Data of GSE5840 downloaded fr...

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Veröffentlicht in:Journal of cellular physiology 2019-03, Vol.234 (3), p.2880-2894
Hauptverfasser: Ma, Yun, Bu, Deyong, Long, Jiang, Chai, Wenying, Dong, Jian
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Bu, Deyong
Long, Jiang
Chai, Wenying
Dong, Jian
description Objective To investigate the influence of long noncoding RNA (lncRNA) DSCAM‐AS1 on the propagation and apoptosis of Tamoxifen‐resistant (TR) breast cancer cells via regulation of mircoRNA (miR)‐137 and epidermal growth factor receptor pathway substrate 8 (EPS8). Methods Data of GSE5840 downloaded from the Gene Expression Omnibus database were utilized to screen out aberrantly expressed lncRNA and messenger RNA in breast cancer tissue samples. The expressions of DSCAM‐AS1, miR‐137, and EPS8 were determined by quantitative real time polymerase chain reaction (qRT‐PCR). Cell lines were screened by half maximal inhibitory concentration (IC 50). 3‐(4,5‐dimethyl‐2‐thiazolyl)‐2,5‐diphenyl‐2‐H‐tetrazolium bromide (MTT) assay and the flow cytometry assay were used to detect cell proliferation, apoptosis, and cell cycle. The relationship among DSCAM‐AS1, miR‐137, and EPS8 was studied by miRcode, TargetScan, and Pearson correlation coefficient. A xenograft mouse model experiment was performed to demonstrate the effect of DSCAM‐AS1 and EPS8 on tumor growth in vivo. Results LncRNA DSCAM‐AS1 and EPS8 were significantly upregulated, whereas miR‐137 was downregulated in TR tissues. DSCAM‐AS1 could promote the Tamoxifen resistance of breast cancer, and it was negatively correlated with miR‐137, whereas positively correlated with the expression of EPS8 in TR breast cancer tissues. Furthermore, miR‐137 could inhibit tumor development and arrest cell cycle at the G0/G1 phase by targeting the 3′‐UTR of EPS8. DSCAM‐AS1 targeted miR‐137 and EPS8 to promote propagation of TR breast cancer cells and inhibit cell apoptosis. Conclusion LncRNA DSCAM‐AS1 acts as a competing endogenous RNA of miR‐137 and regulates EPS8 to promote cell reproduction and suppresses cell apoptosis in TR breast cancer. 1.DSCAM‐AS1 could modulate the expression of epidermal growth factor receptor pathway substrate 8 (EPS8) through mircoRNA (miR)‐137 in breast cancer cells, promote Tamoxifen resistance, propagation, and metastasis of cells in breast cancer, and inhibit cell apoptosis. 2.The DSCAM‐AS1/miR‐137/EPS8 axis may provide new therapeutic targets for Tamoxifen‐resistant breast cancer.
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Methods Data of GSE5840 downloaded from the Gene Expression Omnibus database were utilized to screen out aberrantly expressed lncRNA and messenger RNA in breast cancer tissue samples. The expressions of DSCAM‐AS1, miR‐137, and EPS8 were determined by quantitative real time polymerase chain reaction (qRT‐PCR). Cell lines were screened by half maximal inhibitory concentration (IC 50). 3‐(4,5‐dimethyl‐2‐thiazolyl)‐2,5‐diphenyl‐2‐H‐tetrazolium bromide (MTT) assay and the flow cytometry assay were used to detect cell proliferation, apoptosis, and cell cycle. The relationship among DSCAM‐AS1, miR‐137, and EPS8 was studied by miRcode, TargetScan, and Pearson correlation coefficient. A xenograft mouse model experiment was performed to demonstrate the effect of DSCAM‐AS1 and EPS8 on tumor growth in vivo. Results LncRNA DSCAM‐AS1 and EPS8 were significantly upregulated, whereas miR‐137 was downregulated in TR tissues. DSCAM‐AS1 could promote the Tamoxifen resistance of breast cancer, and it was negatively correlated with miR‐137, whereas positively correlated with the expression of EPS8 in TR breast cancer tissues. Furthermore, miR‐137 could inhibit tumor development and arrest cell cycle at the G0/G1 phase by targeting the 3′‐UTR of EPS8. DSCAM‐AS1 targeted miR‐137 and EPS8 to promote propagation of TR breast cancer cells and inhibit cell apoptosis. Conclusion LncRNA DSCAM‐AS1 acts as a competing endogenous RNA of miR‐137 and regulates EPS8 to promote cell reproduction and suppresses cell apoptosis in TR breast cancer. 1.DSCAM‐AS1 could modulate the expression of epidermal growth factor receptor pathway substrate 8 (EPS8) through mircoRNA (miR)‐137 in breast cancer cells, promote Tamoxifen resistance, propagation, and metastasis of cells in breast cancer, and inhibit cell apoptosis. 2.The DSCAM‐AS1/miR‐137/EPS8 axis may provide new therapeutic targets for Tamoxifen‐resistant breast cancer.</description><identifier>ISSN: 0021-9541</identifier><identifier>EISSN: 1097-4652</identifier><identifier>DOI: 10.1002/jcp.27105</identifier><identifier>PMID: 30203615</identifier><language>eng</language><publisher>United States: Wiley Subscription Services, Inc</publisher><subject>3' Untranslated regions ; Adaptor Proteins, Signal Transducing - genetics ; Animals ; Apoptosis ; Apoptosis - drug effects ; Breast cancer ; Breast Neoplasms - drug therapy ; Breast Neoplasms - genetics ; Breast Neoplasms - pathology ; Cancer ; Cell cycle ; Cell Line, Tumor ; Cell proliferation ; Cell Proliferation - drug effects ; Correlation coefficient ; Correlation coefficients ; Drug Resistance, Neoplasm - genetics ; DSCAM protein ; DSCAM‐AS1 ; Epidermal growth factor ; epidermal growth factor receptor pathway substrate 8 (EPS8) ; Female ; Flow cytometry ; G1 phase ; Gene expression ; Gene Expression Regulation, Neoplastic - drug effects ; Growth factors ; Humans ; Mice ; MicroRNAs - genetics ; mircoRNA‐137 (miR‐137) ; mRNA ; Neural cell adhesion molecule ; Polymerase chain reaction ; Ribonucleic acid ; RNA ; RNA, Long Noncoding - genetics ; Substrates ; Tamoxifen ; Tamoxifen - adverse effects ; Tamoxifen - pharmacology ; Tumors ; Xenograft Model Antitumor Assays ; Xenografts ; Xenotransplantation</subject><ispartof>Journal of cellular physiology, 2019-03, Vol.234 (3), p.2880-2894</ispartof><rights>2018 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4195-5fb0ac9abeb9a4a395c955c3c532f22ee462c8a69dd29270dd5bfb6d5dc0c81c3</citedby><cites>FETCH-LOGICAL-c4195-5fb0ac9abeb9a4a395c955c3c532f22ee462c8a69dd29270dd5bfb6d5dc0c81c3</cites><orcidid>0000-0002-3321-7404</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjcp.27105$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjcp.27105$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30203615$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ma, Yun</creatorcontrib><creatorcontrib>Bu, Deyong</creatorcontrib><creatorcontrib>Long, Jiang</creatorcontrib><creatorcontrib>Chai, Wenying</creatorcontrib><creatorcontrib>Dong, Jian</creatorcontrib><title>LncRNA DSCAM‐AS1 acts as a sponge of miR‐137 to enhance Tamoxifen resistance in breast cancer</title><title>Journal of cellular physiology</title><addtitle>J Cell Physiol</addtitle><description>Objective To investigate the influence of long noncoding RNA (lncRNA) DSCAM‐AS1 on the propagation and apoptosis of Tamoxifen‐resistant (TR) breast cancer cells via regulation of mircoRNA (miR)‐137 and epidermal growth factor receptor pathway substrate 8 (EPS8). Methods Data of GSE5840 downloaded from the Gene Expression Omnibus database were utilized to screen out aberrantly expressed lncRNA and messenger RNA in breast cancer tissue samples. The expressions of DSCAM‐AS1, miR‐137, and EPS8 were determined by quantitative real time polymerase chain reaction (qRT‐PCR). Cell lines were screened by half maximal inhibitory concentration (IC 50). 3‐(4,5‐dimethyl‐2‐thiazolyl)‐2,5‐diphenyl‐2‐H‐tetrazolium bromide (MTT) assay and the flow cytometry assay were used to detect cell proliferation, apoptosis, and cell cycle. The relationship among DSCAM‐AS1, miR‐137, and EPS8 was studied by miRcode, TargetScan, and Pearson correlation coefficient. A xenograft mouse model experiment was performed to demonstrate the effect of DSCAM‐AS1 and EPS8 on tumor growth in vivo. Results LncRNA DSCAM‐AS1 and EPS8 were significantly upregulated, whereas miR‐137 was downregulated in TR tissues. DSCAM‐AS1 could promote the Tamoxifen resistance of breast cancer, and it was negatively correlated with miR‐137, whereas positively correlated with the expression of EPS8 in TR breast cancer tissues. Furthermore, miR‐137 could inhibit tumor development and arrest cell cycle at the G0/G1 phase by targeting the 3′‐UTR of EPS8. DSCAM‐AS1 targeted miR‐137 and EPS8 to promote propagation of TR breast cancer cells and inhibit cell apoptosis. Conclusion LncRNA DSCAM‐AS1 acts as a competing endogenous RNA of miR‐137 and regulates EPS8 to promote cell reproduction and suppresses cell apoptosis in TR breast cancer. 1.DSCAM‐AS1 could modulate the expression of epidermal growth factor receptor pathway substrate 8 (EPS8) through mircoRNA (miR)‐137 in breast cancer cells, promote Tamoxifen resistance, propagation, and metastasis of cells in breast cancer, and inhibit cell apoptosis. 2.The DSCAM‐AS1/miR‐137/EPS8 axis may provide new therapeutic targets for Tamoxifen‐resistant breast cancer.</description><subject>3' Untranslated regions</subject><subject>Adaptor Proteins, Signal Transducing - genetics</subject><subject>Animals</subject><subject>Apoptosis</subject><subject>Apoptosis - drug effects</subject><subject>Breast cancer</subject><subject>Breast Neoplasms - drug therapy</subject><subject>Breast Neoplasms - genetics</subject><subject>Breast Neoplasms - pathology</subject><subject>Cancer</subject><subject>Cell cycle</subject><subject>Cell Line, Tumor</subject><subject>Cell proliferation</subject><subject>Cell Proliferation - drug effects</subject><subject>Correlation coefficient</subject><subject>Correlation coefficients</subject><subject>Drug Resistance, Neoplasm - genetics</subject><subject>DSCAM protein</subject><subject>DSCAM‐AS1</subject><subject>Epidermal growth factor</subject><subject>epidermal growth factor receptor pathway substrate 8 (EPS8)</subject><subject>Female</subject><subject>Flow cytometry</subject><subject>G1 phase</subject><subject>Gene expression</subject><subject>Gene Expression Regulation, Neoplastic - drug effects</subject><subject>Growth factors</subject><subject>Humans</subject><subject>Mice</subject><subject>MicroRNAs - genetics</subject><subject>mircoRNA‐137 (miR‐137)</subject><subject>mRNA</subject><subject>Neural cell adhesion molecule</subject><subject>Polymerase chain reaction</subject><subject>Ribonucleic acid</subject><subject>RNA</subject><subject>RNA, Long Noncoding - genetics</subject><subject>Substrates</subject><subject>Tamoxifen</subject><subject>Tamoxifen - adverse effects</subject><subject>Tamoxifen - pharmacology</subject><subject>Tumors</subject><subject>Xenograft Model Antitumor Assays</subject><subject>Xenografts</subject><subject>Xenotransplantation</subject><issn>0021-9541</issn><issn>1097-4652</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kN1KwzAYhoMobk4PvAEJeKIH3fLTtOZw1H_mD9s8Lmmaakfb1KRFd-YleI1eidk6PRCEhPB978NLeAA4xGiIESKjhayHJMSIbYE-Rjz0_ICRbdB3GfY483EP7Fm7QAhxTuku6FFEEA0w6wMxqeT0fgzPZ9H47uvjczzDUMjGQuEOtLWunhXUGSzzqUsxDWGjoapeRCUVnItSv-eZqqBRNrfNeplXMDFK2AbK1Wz2wU4mCqsONu8APF1ezKNrb_JwdRONJ570MWceyxIkJBeJSrjwBeVMcsYklYySjBCl_IDIMxHwNCWchChNWZIlQcpSieQZlnQATrre2ujXVtkmLnMrVVGISunWxgQjQjF3mhx6_Add6NZU7neOotynzF1HnXaUNNpao7K4NnkpzDLGKF55j533eO3dsUebxjYpVfpL_oh2wKgD3vJCLf9vim-jx67yG20di6Q</recordid><startdate>201903</startdate><enddate>201903</enddate><creator>Ma, Yun</creator><creator>Bu, Deyong</creator><creator>Long, Jiang</creator><creator>Chai, Wenying</creator><creator>Dong, Jian</creator><general>Wiley Subscription Services, Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TK</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-3321-7404</orcidid></search><sort><creationdate>201903</creationdate><title>LncRNA DSCAM‐AS1 acts as a sponge of miR‐137 to enhance Tamoxifen resistance in breast cancer</title><author>Ma, Yun ; Bu, Deyong ; Long, Jiang ; Chai, Wenying ; Dong, Jian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4195-5fb0ac9abeb9a4a395c955c3c532f22ee462c8a69dd29270dd5bfb6d5dc0c81c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>3' Untranslated regions</topic><topic>Adaptor Proteins, Signal Transducing - genetics</topic><topic>Animals</topic><topic>Apoptosis</topic><topic>Apoptosis - drug effects</topic><topic>Breast cancer</topic><topic>Breast Neoplasms - drug therapy</topic><topic>Breast Neoplasms - genetics</topic><topic>Breast Neoplasms - pathology</topic><topic>Cancer</topic><topic>Cell cycle</topic><topic>Cell Line, Tumor</topic><topic>Cell proliferation</topic><topic>Cell Proliferation - drug effects</topic><topic>Correlation coefficient</topic><topic>Correlation coefficients</topic><topic>Drug Resistance, Neoplasm - genetics</topic><topic>DSCAM protein</topic><topic>DSCAM‐AS1</topic><topic>Epidermal growth factor</topic><topic>epidermal growth factor receptor pathway substrate 8 (EPS8)</topic><topic>Female</topic><topic>Flow cytometry</topic><topic>G1 phase</topic><topic>Gene expression</topic><topic>Gene Expression Regulation, Neoplastic - drug effects</topic><topic>Growth factors</topic><topic>Humans</topic><topic>Mice</topic><topic>MicroRNAs - genetics</topic><topic>mircoRNA‐137 (miR‐137)</topic><topic>mRNA</topic><topic>Neural cell adhesion molecule</topic><topic>Polymerase chain reaction</topic><topic>Ribonucleic acid</topic><topic>RNA</topic><topic>RNA, Long Noncoding - genetics</topic><topic>Substrates</topic><topic>Tamoxifen</topic><topic>Tamoxifen - adverse effects</topic><topic>Tamoxifen - pharmacology</topic><topic>Tumors</topic><topic>Xenograft Model Antitumor Assays</topic><topic>Xenografts</topic><topic>Xenotransplantation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ma, Yun</creatorcontrib><creatorcontrib>Bu, Deyong</creatorcontrib><creatorcontrib>Long, Jiang</creatorcontrib><creatorcontrib>Chai, Wenying</creatorcontrib><creatorcontrib>Dong, Jian</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of cellular physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Yun</au><au>Bu, Deyong</au><au>Long, Jiang</au><au>Chai, Wenying</au><au>Dong, Jian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>LncRNA DSCAM‐AS1 acts as a sponge of miR‐137 to enhance Tamoxifen resistance in breast cancer</atitle><jtitle>Journal of cellular physiology</jtitle><addtitle>J Cell Physiol</addtitle><date>2019-03</date><risdate>2019</risdate><volume>234</volume><issue>3</issue><spage>2880</spage><epage>2894</epage><pages>2880-2894</pages><issn>0021-9541</issn><eissn>1097-4652</eissn><abstract>Objective To investigate the influence of long noncoding RNA (lncRNA) DSCAM‐AS1 on the propagation and apoptosis of Tamoxifen‐resistant (TR) breast cancer cells via regulation of mircoRNA (miR)‐137 and epidermal growth factor receptor pathway substrate 8 (EPS8). Methods Data of GSE5840 downloaded from the Gene Expression Omnibus database were utilized to screen out aberrantly expressed lncRNA and messenger RNA in breast cancer tissue samples. The expressions of DSCAM‐AS1, miR‐137, and EPS8 were determined by quantitative real time polymerase chain reaction (qRT‐PCR). Cell lines were screened by half maximal inhibitory concentration (IC 50). 3‐(4,5‐dimethyl‐2‐thiazolyl)‐2,5‐diphenyl‐2‐H‐tetrazolium bromide (MTT) assay and the flow cytometry assay were used to detect cell proliferation, apoptosis, and cell cycle. The relationship among DSCAM‐AS1, miR‐137, and EPS8 was studied by miRcode, TargetScan, and Pearson correlation coefficient. A xenograft mouse model experiment was performed to demonstrate the effect of DSCAM‐AS1 and EPS8 on tumor growth in vivo. Results LncRNA DSCAM‐AS1 and EPS8 were significantly upregulated, whereas miR‐137 was downregulated in TR tissues. DSCAM‐AS1 could promote the Tamoxifen resistance of breast cancer, and it was negatively correlated with miR‐137, whereas positively correlated with the expression of EPS8 in TR breast cancer tissues. Furthermore, miR‐137 could inhibit tumor development and arrest cell cycle at the G0/G1 phase by targeting the 3′‐UTR of EPS8. DSCAM‐AS1 targeted miR‐137 and EPS8 to promote propagation of TR breast cancer cells and inhibit cell apoptosis. Conclusion LncRNA DSCAM‐AS1 acts as a competing endogenous RNA of miR‐137 and regulates EPS8 to promote cell reproduction and suppresses cell apoptosis in TR breast cancer. 1.DSCAM‐AS1 could modulate the expression of epidermal growth factor receptor pathway substrate 8 (EPS8) through mircoRNA (miR)‐137 in breast cancer cells, promote Tamoxifen resistance, propagation, and metastasis of cells in breast cancer, and inhibit cell apoptosis. 2.The DSCAM‐AS1/miR‐137/EPS8 axis may provide new therapeutic targets for Tamoxifen‐resistant breast cancer.</abstract><cop>United States</cop><pub>Wiley Subscription Services, Inc</pub><pmid>30203615</pmid><doi>10.1002/jcp.27105</doi><tpages>15</tpages><orcidid>https://orcid.org/0000-0002-3321-7404</orcidid></addata></record>
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subjects 3' Untranslated regions
Adaptor Proteins, Signal Transducing - genetics
Animals
Apoptosis
Apoptosis - drug effects
Breast cancer
Breast Neoplasms - drug therapy
Breast Neoplasms - genetics
Breast Neoplasms - pathology
Cancer
Cell cycle
Cell Line, Tumor
Cell proliferation
Cell Proliferation - drug effects
Correlation coefficient
Correlation coefficients
Drug Resistance, Neoplasm - genetics
DSCAM protein
DSCAM‐AS1
Epidermal growth factor
epidermal growth factor receptor pathway substrate 8 (EPS8)
Female
Flow cytometry
G1 phase
Gene expression
Gene Expression Regulation, Neoplastic - drug effects
Growth factors
Humans
Mice
MicroRNAs - genetics
mircoRNA‐137 (miR‐137)
mRNA
Neural cell adhesion molecule
Polymerase chain reaction
Ribonucleic acid
RNA
RNA, Long Noncoding - genetics
Substrates
Tamoxifen
Tamoxifen - adverse effects
Tamoxifen - pharmacology
Tumors
Xenograft Model Antitumor Assays
Xenografts
Xenotransplantation
title LncRNA DSCAM‐AS1 acts as a sponge of miR‐137 to enhance Tamoxifen resistance in breast cancer
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