Long non‐coding RNA PANDAR promoted radiation and cisplatin‐induced DNA damage repair through ATR/CHK1 in NSCLC

Background DNA‐damaging agents, including radiation and platinum‐based chemotherapy, are indispensable treatments for non‐small cell lung cancer (NSCLC) patients. However, cancer cells tend to be resistant to both radiation and chemotherapy, thus resulting in treatment failure or recurrence. The pur...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:The journal of gene medicine 2023-12, Vol.25 (12), p.e3565-n/a
Hauptverfasser: Zhao, Songyun, Yu, Nanxi, Wang, Hang, Wan, Zhijie, Diao, Chaoyue, Chen, Yuanyuan, Liu, Tingting, Yang, Yanyong, Gao, Fu, Bai, Chong, Cao, Kun, Cai, Jianming
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page n/a
container_issue 12
container_start_page e3565
container_title The journal of gene medicine
container_volume 25
creator Zhao, Songyun
Yu, Nanxi
Wang, Hang
Wan, Zhijie
Diao, Chaoyue
Chen, Yuanyuan
Liu, Tingting
Yang, Yanyong
Gao, Fu
Bai, Chong
Cao, Kun
Cai, Jianming
description Background DNA‐damaging agents, including radiation and platinum‐based chemotherapy, are indispensable treatments for non‐small cell lung cancer (NSCLC) patients. However, cancer cells tend to be resistant to both radiation and chemotherapy, thus resulting in treatment failure or recurrence. The purpose of this study was to explore the effect and mechanism of long non‐coding RNA (lncRNA) PANDAR (promoter of CDKN1A antisense DNA damage‐activated RNA) on NSCLC sensitivity to radiation and chemotherapy. Methods Cell counting kit (CCK‐8), colony formation and flow cytometry were respectively performed to determine the cell cycle and apoptosis of NSCLC cells treated with γ‐ray radiation and cisplatin. The extent of DNA damage was evaluated using a comet assay and immunofluorescence staining against γH2AX. In addition, we explored the role of PANDAR in DNA damage response pathways through western blot analysis. Finally, a nude mouse subcutaneous xenograft model was established to assess the sensitivity to radiation and chemotherapy in vivo. Results In cell experiments, PANDAR knockdown can increase the sensitivity of NSCLC cells to radiation and cisplatin. The CCK‐8 results showed that cell viability was significantly increased in the overexpression group after radiation and cisplatin treatments. The overexpression group also showed more colonies, less apoptosis and DNA damage, and G2/M phase arrest was aggravated to provide the time necessary for DNA repair. Contrary to PANDAR overexpression, the trends were reversed in the PANDAR knockdown group. Furthermore, PANDAR knockdown inhibited radiation and cisplatin‐activated phosphorylation levels of ATR and CHK1 in NSCLC cells. Finally, our in vivo model showed that targeting PANDAR significantly sensitized NSCLC to radiation and cisplatin. Conclusion Our study showed that PANDAR knockdown promoted sensitivity to radiation and cisplatin in NSCLC by regulating the ATR/CHK1 pathway, thus providing a novel understanding as well as a therapeutic target for NSCLC treatment. In NSCLC cells, lncRNA PANDAR negatively regulates sensitivity to radiation and cisplatin. PANDAR can promote the repair of radiation and cisplatin‐induced DNA damage and activation of the G2/M checkpoint through the ATR/CHK1 pathway. PANDAR knockdown results in defects in DNA damage repair accompanied by more cell apoptosis. In non‐small cell lung cancer (NSCLC) cells, lncRNA PANDAR negatively regulates sensitivity to radiation and cisplatin. PANDAR
doi_str_mv 10.1002/jgm.3565
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2839249999</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2903077003</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3105-3b513fb24a65d5ad10acab17c118cc614ed1184714dc4cd286e70fda26cc50483</originalsourceid><addsrcrecordid>eNp1kctOGzEUhi1EBSmtxBMgS2zYDPg6l-VoKKEQQpWCxM5ybCdxNGOndkZVdn2EPmOfBIdLkZDwxudI3_l07B-AQ4xOMULkbDnvTinP-Q4YYE5wRghnu6lGVZWxqnzYB59jXCKEi7Ks9sA-LViOaEUHII68m0Pn3b8_f5XXNjWTcQ1_1OPzegJXwXd-bTQMUlu5tt5B6TRUNq7a1G6HrNO9SsR5mtKyk3MDg1lJG-B6EXw_X8D6bnLWXF5jaB0c_2xGzRfwaSbbaL6-3Afg_uLbXXOZjW6H35t6lCmKEc_olGM6mxImc6651BhJJae4UBiXSuWYGZ0qVmCmFVOalLkp0ExLkivFESvpATh59qZn_OpNXIvORmXaVjrj-yhISSvCqnQSevwOXfo-uLSdIBWiqCgQom9CFXyMwczEKthOho3ASGyDECkIsQ0ioUcvwn7aGf0ffP35BGTPwG_bms2HInE1vHkSPgI8QJEE</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2903077003</pqid></control><display><type>article</type><title>Long non‐coding RNA PANDAR promoted radiation and cisplatin‐induced DNA damage repair through ATR/CHK1 in NSCLC</title><source>MEDLINE</source><source>Wiley Online Library Journals Frontfile Complete</source><creator>Zhao, Songyun ; Yu, Nanxi ; Wang, Hang ; Wan, Zhijie ; Diao, Chaoyue ; Chen, Yuanyuan ; Liu, Tingting ; Yang, Yanyong ; Gao, Fu ; Bai, Chong ; Cao, Kun ; Cai, Jianming</creator><creatorcontrib>Zhao, Songyun ; Yu, Nanxi ; Wang, Hang ; Wan, Zhijie ; Diao, Chaoyue ; Chen, Yuanyuan ; Liu, Tingting ; Yang, Yanyong ; Gao, Fu ; Bai, Chong ; Cao, Kun ; Cai, Jianming</creatorcontrib><description>Background DNA‐damaging agents, including radiation and platinum‐based chemotherapy, are indispensable treatments for non‐small cell lung cancer (NSCLC) patients. However, cancer cells tend to be resistant to both radiation and chemotherapy, thus resulting in treatment failure or recurrence. The purpose of this study was to explore the effect and mechanism of long non‐coding RNA (lncRNA) PANDAR (promoter of CDKN1A antisense DNA damage‐activated RNA) on NSCLC sensitivity to radiation and chemotherapy. Methods Cell counting kit (CCK‐8), colony formation and flow cytometry were respectively performed to determine the cell cycle and apoptosis of NSCLC cells treated with γ‐ray radiation and cisplatin. The extent of DNA damage was evaluated using a comet assay and immunofluorescence staining against γH2AX. In addition, we explored the role of PANDAR in DNA damage response pathways through western blot analysis. Finally, a nude mouse subcutaneous xenograft model was established to assess the sensitivity to radiation and chemotherapy in vivo. Results In cell experiments, PANDAR knockdown can increase the sensitivity of NSCLC cells to radiation and cisplatin. The CCK‐8 results showed that cell viability was significantly increased in the overexpression group after radiation and cisplatin treatments. The overexpression group also showed more colonies, less apoptosis and DNA damage, and G2/M phase arrest was aggravated to provide the time necessary for DNA repair. Contrary to PANDAR overexpression, the trends were reversed in the PANDAR knockdown group. Furthermore, PANDAR knockdown inhibited radiation and cisplatin‐activated phosphorylation levels of ATR and CHK1 in NSCLC cells. Finally, our in vivo model showed that targeting PANDAR significantly sensitized NSCLC to radiation and cisplatin. Conclusion Our study showed that PANDAR knockdown promoted sensitivity to radiation and cisplatin in NSCLC by regulating the ATR/CHK1 pathway, thus providing a novel understanding as well as a therapeutic target for NSCLC treatment. In NSCLC cells, lncRNA PANDAR negatively regulates sensitivity to radiation and cisplatin. PANDAR can promote the repair of radiation and cisplatin‐induced DNA damage and activation of the G2/M checkpoint through the ATR/CHK1 pathway. PANDAR knockdown results in defects in DNA damage repair accompanied by more cell apoptosis. In non‐small cell lung cancer (NSCLC) cells, lncRNA PANDAR negatively regulates sensitivity to radiation and cisplatin. PANDAR can promote the repair of radiation and cisplatin‐induced DNA damage and activation of the G2/M checkpoint through the ATR/CHK1 pathway. PANDAR knockdown results in defects in DNA damage repair accompanied by more cell apoptosis.</description><identifier>ISSN: 1099-498X</identifier><identifier>EISSN: 1521-2254</identifier><identifier>DOI: 10.1002/jgm.3565</identifier><identifier>PMID: 37460393</identifier><language>eng</language><publisher>England: Wiley Periodicals Inc</publisher><subject>Animals ; Antisense DNA ; Antisense RNA ; Apoptosis ; Apoptosis - genetics ; Ataxia Telangiectasia Mutated Proteins - genetics ; Ataxia Telangiectasia Mutated Proteins - metabolism ; Ataxia Telangiectasia Mutated Proteins - therapeutic use ; cancer ; Carcinoma, Non-Small-Cell Lung - genetics ; Carcinoma, Non-Small-Cell Lung - metabolism ; Carcinoma, Non-Small-Cell Lung - therapy ; Cell cycle ; Cell Line, Tumor ; Cell Proliferation - genetics ; Cell viability ; cell‐therapy ; Chemotherapy ; CHK1 protein ; Cholecystokinin ; Cisplatin ; Cisplatin - pharmacology ; Comet assay ; DNA Damage ; DNA repair ; DNA Repair - genetics ; Flow cytometry ; Humans ; Immunofluorescence ; lung ; Lung cancer ; Lung Neoplasms - drug therapy ; Lung Neoplasms - therapy ; Mice ; molecular‐genetics ; Non-coding RNA ; Non-small cell lung carcinoma ; Phosphorylation ; Radiation ; Ribonucleic acid ; RNA ; RNA, Long Noncoding - genetics ; RNA, Long Noncoding - metabolism ; Small cell lung carcinoma ; Therapeutic targets ; tumor therapy</subject><ispartof>The journal of gene medicine, 2023-12, Vol.25 (12), p.e3565-n/a</ispartof><rights>2023 John Wiley &amp; Sons Ltd.</rights><rights>2023 John Wiley &amp; Sons, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c3105-3b513fb24a65d5ad10acab17c118cc614ed1184714dc4cd286e70fda26cc50483</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fjgm.3565$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fjgm.3565$$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/37460393$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhao, Songyun</creatorcontrib><creatorcontrib>Yu, Nanxi</creatorcontrib><creatorcontrib>Wang, Hang</creatorcontrib><creatorcontrib>Wan, Zhijie</creatorcontrib><creatorcontrib>Diao, Chaoyue</creatorcontrib><creatorcontrib>Chen, Yuanyuan</creatorcontrib><creatorcontrib>Liu, Tingting</creatorcontrib><creatorcontrib>Yang, Yanyong</creatorcontrib><creatorcontrib>Gao, Fu</creatorcontrib><creatorcontrib>Bai, Chong</creatorcontrib><creatorcontrib>Cao, Kun</creatorcontrib><creatorcontrib>Cai, Jianming</creatorcontrib><title>Long non‐coding RNA PANDAR promoted radiation and cisplatin‐induced DNA damage repair through ATR/CHK1 in NSCLC</title><title>The journal of gene medicine</title><addtitle>J Gene Med</addtitle><description>Background DNA‐damaging agents, including radiation and platinum‐based chemotherapy, are indispensable treatments for non‐small cell lung cancer (NSCLC) patients. However, cancer cells tend to be resistant to both radiation and chemotherapy, thus resulting in treatment failure or recurrence. The purpose of this study was to explore the effect and mechanism of long non‐coding RNA (lncRNA) PANDAR (promoter of CDKN1A antisense DNA damage‐activated RNA) on NSCLC sensitivity to radiation and chemotherapy. Methods Cell counting kit (CCK‐8), colony formation and flow cytometry were respectively performed to determine the cell cycle and apoptosis of NSCLC cells treated with γ‐ray radiation and cisplatin. The extent of DNA damage was evaluated using a comet assay and immunofluorescence staining against γH2AX. In addition, we explored the role of PANDAR in DNA damage response pathways through western blot analysis. Finally, a nude mouse subcutaneous xenograft model was established to assess the sensitivity to radiation and chemotherapy in vivo. Results In cell experiments, PANDAR knockdown can increase the sensitivity of NSCLC cells to radiation and cisplatin. The CCK‐8 results showed that cell viability was significantly increased in the overexpression group after radiation and cisplatin treatments. The overexpression group also showed more colonies, less apoptosis and DNA damage, and G2/M phase arrest was aggravated to provide the time necessary for DNA repair. Contrary to PANDAR overexpression, the trends were reversed in the PANDAR knockdown group. Furthermore, PANDAR knockdown inhibited radiation and cisplatin‐activated phosphorylation levels of ATR and CHK1 in NSCLC cells. Finally, our in vivo model showed that targeting PANDAR significantly sensitized NSCLC to radiation and cisplatin. Conclusion Our study showed that PANDAR knockdown promoted sensitivity to radiation and cisplatin in NSCLC by regulating the ATR/CHK1 pathway, thus providing a novel understanding as well as a therapeutic target for NSCLC treatment. In NSCLC cells, lncRNA PANDAR negatively regulates sensitivity to radiation and cisplatin. PANDAR can promote the repair of radiation and cisplatin‐induced DNA damage and activation of the G2/M checkpoint through the ATR/CHK1 pathway. PANDAR knockdown results in defects in DNA damage repair accompanied by more cell apoptosis. In non‐small cell lung cancer (NSCLC) cells, lncRNA PANDAR negatively regulates sensitivity to radiation and cisplatin. PANDAR can promote the repair of radiation and cisplatin‐induced DNA damage and activation of the G2/M checkpoint through the ATR/CHK1 pathway. PANDAR knockdown results in defects in DNA damage repair accompanied by more cell apoptosis.</description><subject>Animals</subject><subject>Antisense DNA</subject><subject>Antisense RNA</subject><subject>Apoptosis</subject><subject>Apoptosis - genetics</subject><subject>Ataxia Telangiectasia Mutated Proteins - genetics</subject><subject>Ataxia Telangiectasia Mutated Proteins - metabolism</subject><subject>Ataxia Telangiectasia Mutated Proteins - therapeutic use</subject><subject>cancer</subject><subject>Carcinoma, Non-Small-Cell Lung - genetics</subject><subject>Carcinoma, Non-Small-Cell Lung - metabolism</subject><subject>Carcinoma, Non-Small-Cell Lung - therapy</subject><subject>Cell cycle</subject><subject>Cell Line, Tumor</subject><subject>Cell Proliferation - genetics</subject><subject>Cell viability</subject><subject>cell‐therapy</subject><subject>Chemotherapy</subject><subject>CHK1 protein</subject><subject>Cholecystokinin</subject><subject>Cisplatin</subject><subject>Cisplatin - pharmacology</subject><subject>Comet assay</subject><subject>DNA Damage</subject><subject>DNA repair</subject><subject>DNA Repair - genetics</subject><subject>Flow cytometry</subject><subject>Humans</subject><subject>Immunofluorescence</subject><subject>lung</subject><subject>Lung cancer</subject><subject>Lung Neoplasms - drug therapy</subject><subject>Lung Neoplasms - therapy</subject><subject>Mice</subject><subject>molecular‐genetics</subject><subject>Non-coding RNA</subject><subject>Non-small cell lung carcinoma</subject><subject>Phosphorylation</subject><subject>Radiation</subject><subject>Ribonucleic acid</subject><subject>RNA</subject><subject>RNA, Long Noncoding - genetics</subject><subject>RNA, Long Noncoding - metabolism</subject><subject>Small cell lung carcinoma</subject><subject>Therapeutic targets</subject><subject>tumor therapy</subject><issn>1099-498X</issn><issn>1521-2254</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kctOGzEUhi1EBSmtxBMgS2zYDPg6l-VoKKEQQpWCxM5ybCdxNGOndkZVdn2EPmOfBIdLkZDwxudI3_l07B-AQ4xOMULkbDnvTinP-Q4YYE5wRghnu6lGVZWxqnzYB59jXCKEi7Ks9sA-LViOaEUHII68m0Pn3b8_f5XXNjWTcQ1_1OPzegJXwXd-bTQMUlu5tt5B6TRUNq7a1G6HrNO9SsR5mtKyk3MDg1lJG-B6EXw_X8D6bnLWXF5jaB0c_2xGzRfwaSbbaL6-3Afg_uLbXXOZjW6H35t6lCmKEc_olGM6mxImc6651BhJJae4UBiXSuWYGZ0qVmCmFVOalLkp0ExLkivFESvpATh59qZn_OpNXIvORmXaVjrj-yhISSvCqnQSevwOXfo-uLSdIBWiqCgQom9CFXyMwczEKthOho3ASGyDECkIsQ0ioUcvwn7aGf0ffP35BGTPwG_bms2HInE1vHkSPgI8QJEE</recordid><startdate>202312</startdate><enddate>202312</enddate><creator>Zhao, Songyun</creator><creator>Yu, Nanxi</creator><creator>Wang, Hang</creator><creator>Wan, Zhijie</creator><creator>Diao, Chaoyue</creator><creator>Chen, Yuanyuan</creator><creator>Liu, Tingting</creator><creator>Yang, Yanyong</creator><creator>Gao, Fu</creator><creator>Bai, Chong</creator><creator>Cao, Kun</creator><creator>Cai, Jianming</creator><general>Wiley Periodicals 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>7QP</scope><scope>7TK</scope><scope>7TM</scope><scope>8FD</scope><scope>FR3</scope><scope>K9.</scope><scope>P64</scope><scope>RC3</scope><scope>7X8</scope></search><sort><creationdate>202312</creationdate><title>Long non‐coding RNA PANDAR promoted radiation and cisplatin‐induced DNA damage repair through ATR/CHK1 in NSCLC</title><author>Zhao, Songyun ; Yu, Nanxi ; Wang, Hang ; Wan, Zhijie ; Diao, Chaoyue ; Chen, Yuanyuan ; Liu, Tingting ; Yang, Yanyong ; Gao, Fu ; Bai, Chong ; Cao, Kun ; Cai, Jianming</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3105-3b513fb24a65d5ad10acab17c118cc614ed1184714dc4cd286e70fda26cc50483</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Animals</topic><topic>Antisense DNA</topic><topic>Antisense RNA</topic><topic>Apoptosis</topic><topic>Apoptosis - genetics</topic><topic>Ataxia Telangiectasia Mutated Proteins - genetics</topic><topic>Ataxia Telangiectasia Mutated Proteins - metabolism</topic><topic>Ataxia Telangiectasia Mutated Proteins - therapeutic use</topic><topic>cancer</topic><topic>Carcinoma, Non-Small-Cell Lung - genetics</topic><topic>Carcinoma, Non-Small-Cell Lung - metabolism</topic><topic>Carcinoma, Non-Small-Cell Lung - therapy</topic><topic>Cell cycle</topic><topic>Cell Line, Tumor</topic><topic>Cell Proliferation - genetics</topic><topic>Cell viability</topic><topic>cell‐therapy</topic><topic>Chemotherapy</topic><topic>CHK1 protein</topic><topic>Cholecystokinin</topic><topic>Cisplatin</topic><topic>Cisplatin - pharmacology</topic><topic>Comet assay</topic><topic>DNA Damage</topic><topic>DNA repair</topic><topic>DNA Repair - genetics</topic><topic>Flow cytometry</topic><topic>Humans</topic><topic>Immunofluorescence</topic><topic>lung</topic><topic>Lung cancer</topic><topic>Lung Neoplasms - drug therapy</topic><topic>Lung Neoplasms - therapy</topic><topic>Mice</topic><topic>molecular‐genetics</topic><topic>Non-coding RNA</topic><topic>Non-small cell lung carcinoma</topic><topic>Phosphorylation</topic><topic>Radiation</topic><topic>Ribonucleic acid</topic><topic>RNA</topic><topic>RNA, Long Noncoding - genetics</topic><topic>RNA, Long Noncoding - metabolism</topic><topic>Small cell lung carcinoma</topic><topic>Therapeutic targets</topic><topic>tumor therapy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhao, Songyun</creatorcontrib><creatorcontrib>Yu, Nanxi</creatorcontrib><creatorcontrib>Wang, Hang</creatorcontrib><creatorcontrib>Wan, Zhijie</creatorcontrib><creatorcontrib>Diao, Chaoyue</creatorcontrib><creatorcontrib>Chen, Yuanyuan</creatorcontrib><creatorcontrib>Liu, Tingting</creatorcontrib><creatorcontrib>Yang, Yanyong</creatorcontrib><creatorcontrib>Gao, Fu</creatorcontrib><creatorcontrib>Bai, Chong</creatorcontrib><creatorcontrib>Cao, Kun</creatorcontrib><creatorcontrib>Cai, Jianming</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Calcium &amp; Calcified Tissue Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Technology Research Database</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>The journal of gene medicine</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhao, Songyun</au><au>Yu, Nanxi</au><au>Wang, Hang</au><au>Wan, Zhijie</au><au>Diao, Chaoyue</au><au>Chen, Yuanyuan</au><au>Liu, Tingting</au><au>Yang, Yanyong</au><au>Gao, Fu</au><au>Bai, Chong</au><au>Cao, Kun</au><au>Cai, Jianming</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Long non‐coding RNA PANDAR promoted radiation and cisplatin‐induced DNA damage repair through ATR/CHK1 in NSCLC</atitle><jtitle>The journal of gene medicine</jtitle><addtitle>J Gene Med</addtitle><date>2023-12</date><risdate>2023</risdate><volume>25</volume><issue>12</issue><spage>e3565</spage><epage>n/a</epage><pages>e3565-n/a</pages><issn>1099-498X</issn><eissn>1521-2254</eissn><abstract>Background DNA‐damaging agents, including radiation and platinum‐based chemotherapy, are indispensable treatments for non‐small cell lung cancer (NSCLC) patients. However, cancer cells tend to be resistant to both radiation and chemotherapy, thus resulting in treatment failure or recurrence. The purpose of this study was to explore the effect and mechanism of long non‐coding RNA (lncRNA) PANDAR (promoter of CDKN1A antisense DNA damage‐activated RNA) on NSCLC sensitivity to radiation and chemotherapy. Methods Cell counting kit (CCK‐8), colony formation and flow cytometry were respectively performed to determine the cell cycle and apoptosis of NSCLC cells treated with γ‐ray radiation and cisplatin. The extent of DNA damage was evaluated using a comet assay and immunofluorescence staining against γH2AX. In addition, we explored the role of PANDAR in DNA damage response pathways through western blot analysis. Finally, a nude mouse subcutaneous xenograft model was established to assess the sensitivity to radiation and chemotherapy in vivo. Results In cell experiments, PANDAR knockdown can increase the sensitivity of NSCLC cells to radiation and cisplatin. The CCK‐8 results showed that cell viability was significantly increased in the overexpression group after radiation and cisplatin treatments. The overexpression group also showed more colonies, less apoptosis and DNA damage, and G2/M phase arrest was aggravated to provide the time necessary for DNA repair. Contrary to PANDAR overexpression, the trends were reversed in the PANDAR knockdown group. Furthermore, PANDAR knockdown inhibited radiation and cisplatin‐activated phosphorylation levels of ATR and CHK1 in NSCLC cells. Finally, our in vivo model showed that targeting PANDAR significantly sensitized NSCLC to radiation and cisplatin. Conclusion Our study showed that PANDAR knockdown promoted sensitivity to radiation and cisplatin in NSCLC by regulating the ATR/CHK1 pathway, thus providing a novel understanding as well as a therapeutic target for NSCLC treatment. In NSCLC cells, lncRNA PANDAR negatively regulates sensitivity to radiation and cisplatin. PANDAR can promote the repair of radiation and cisplatin‐induced DNA damage and activation of the G2/M checkpoint through the ATR/CHK1 pathway. PANDAR knockdown results in defects in DNA damage repair accompanied by more cell apoptosis. In non‐small cell lung cancer (NSCLC) cells, lncRNA PANDAR negatively regulates sensitivity to radiation and cisplatin. PANDAR can promote the repair of radiation and cisplatin‐induced DNA damage and activation of the G2/M checkpoint through the ATR/CHK1 pathway. PANDAR knockdown results in defects in DNA damage repair accompanied by more cell apoptosis.</abstract><cop>England</cop><pub>Wiley Periodicals Inc</pub><pmid>37460393</pmid><doi>10.1002/jgm.3565</doi><tpages>10</tpages></addata></record>
fulltext fulltext
identifier ISSN: 1099-498X
ispartof The journal of gene medicine, 2023-12, Vol.25 (12), p.e3565-n/a
issn 1099-498X
1521-2254
language eng
recordid cdi_proquest_miscellaneous_2839249999
source MEDLINE; Wiley Online Library Journals Frontfile Complete
subjects Animals
Antisense DNA
Antisense RNA
Apoptosis
Apoptosis - genetics
Ataxia Telangiectasia Mutated Proteins - genetics
Ataxia Telangiectasia Mutated Proteins - metabolism
Ataxia Telangiectasia Mutated Proteins - therapeutic use
cancer
Carcinoma, Non-Small-Cell Lung - genetics
Carcinoma, Non-Small-Cell Lung - metabolism
Carcinoma, Non-Small-Cell Lung - therapy
Cell cycle
Cell Line, Tumor
Cell Proliferation - genetics
Cell viability
cell‐therapy
Chemotherapy
CHK1 protein
Cholecystokinin
Cisplatin
Cisplatin - pharmacology
Comet assay
DNA Damage
DNA repair
DNA Repair - genetics
Flow cytometry
Humans
Immunofluorescence
lung
Lung cancer
Lung Neoplasms - drug therapy
Lung Neoplasms - therapy
Mice
molecular‐genetics
Non-coding RNA
Non-small cell lung carcinoma
Phosphorylation
Radiation
Ribonucleic acid
RNA
RNA, Long Noncoding - genetics
RNA, Long Noncoding - metabolism
Small cell lung carcinoma
Therapeutic targets
tumor therapy
title Long non‐coding RNA PANDAR promoted radiation and cisplatin‐induced DNA damage repair through ATR/CHK1 in NSCLC
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-20T20%3A56%3A53IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Long%20non%E2%80%90coding%20RNA%20PANDAR%20promoted%20radiation%20and%20cisplatin%E2%80%90induced%20DNA%20damage%20repair%20through%20ATR/CHK1%20in%20NSCLC&rft.jtitle=The%20journal%20of%20gene%20medicine&rft.au=Zhao,%20Songyun&rft.date=2023-12&rft.volume=25&rft.issue=12&rft.spage=e3565&rft.epage=n/a&rft.pages=e3565-n/a&rft.issn=1099-498X&rft.eissn=1521-2254&rft_id=info:doi/10.1002/jgm.3565&rft_dat=%3Cproquest_cross%3E2903077003%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2903077003&rft_id=info:pmid/37460393&rfr_iscdi=true