Glutathione S‐transferase polymorphisms are associated with survival in anaplastic glioma patients

BACKGROUND: Glutathione S‐transferases (GSTs) are polymorphic enzymes that are responsible for glutathione conjugation of alkylators and scavenging of free radicals created by radiation. GST polymorphisms may result in altered or absent enzyme activity and have been associated with survival in patie...

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Veröffentlicht in:Cancer 2010-05, Vol.116 (9), p.2242-2249
Hauptverfasser: Kilburn, Lindsay, Okcu, M. Fatih, Wang, Tao, Cao, Yumei, Renfro‐Spelman, Amy, Aldape, Kenneth D., Gilbert, Mark R., Bondy, Melissa
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container_end_page 2249
container_issue 9
container_start_page 2242
container_title Cancer
container_volume 116
creator Kilburn, Lindsay
Okcu, M. Fatih
Wang, Tao
Cao, Yumei
Renfro‐Spelman, Amy
Aldape, Kenneth D.
Gilbert, Mark R.
Bondy, Melissa
description BACKGROUND: Glutathione S‐transferases (GSTs) are polymorphic enzymes that are responsible for glutathione conjugation of alkylators and scavenging of free radicals created by radiation. GST polymorphisms may result in altered or absent enzyme activity and have been associated with survival in patients with cancer. The authors of this report hypothesized that patients with anaplastic glioma (AG) who have GST genotypes that encode for lower activity enzymes will have longer survival than similar patients who have higher activity genotypes. The current study was performed to investigate the role of GST enzyme polymorphisms in predicting the survival of patients with AG. METHODS: The medical records of 207 patients with AG from a single cancer center were reviewed retrospectively. Polymorphisms for the GST μ1 (GSTM1), GST θ1 (GSTT1), and GST π1 (GSTP1) enzymes were identified. Overall survival was compared using the Kaplan‐Meier method and Cox proportional hazards analyses adjusting for age, sex, histology, and therapy. RESULTS: Among the patients with oligodendroglial tumors (n = 94), patients who had the GSTT1 null genotype had a 2.9 times increased risk of death (95% confidence interval [CI], 1.3‐6.3) compared with patients who had the GSTT1 non‐null genotype. Adjustment for 1p/19q status did not change the finding. In the patients who had anaplastic astrocytoma (n = 113), the patients with all GSTP1 genotypes except GSTP1 *B/*B had a 3.8 times increased risk of death (95% CI, 0.5‐29.6) compared with patients who had the GSTP1 *B/*B genotype. CONCLUSIONS: In patients with anaplastic oligodendroglial tumors, the GSTT1 null genotype may be associated with poor survival, possibly because of modifications in therapy secondary to increased toxicity. This hypothesis is under investigation. In patients with anaplastic astrocytoma, the GSTP1 *B/*B genotype may confer a survival advantage. Cancer 2010. © 2010 American Cancer Society. Glutathione S‐transferase polymorphisms are associated with survival in patients with anaplastic glial brain tumors.
doi_str_mv 10.1002/cncr.25006
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Fatih ; Wang, Tao ; Cao, Yumei ; Renfro‐Spelman, Amy ; Aldape, Kenneth D. ; Gilbert, Mark R. ; Bondy, Melissa</creator><creatorcontrib>Kilburn, Lindsay ; Okcu, M. Fatih ; Wang, Tao ; Cao, Yumei ; Renfro‐Spelman, Amy ; Aldape, Kenneth D. ; Gilbert, Mark R. ; Bondy, Melissa</creatorcontrib><description>BACKGROUND: Glutathione S‐transferases (GSTs) are polymorphic enzymes that are responsible for glutathione conjugation of alkylators and scavenging of free radicals created by radiation. GST polymorphisms may result in altered or absent enzyme activity and have been associated with survival in patients with cancer. The authors of this report hypothesized that patients with anaplastic glioma (AG) who have GST genotypes that encode for lower activity enzymes will have longer survival than similar patients who have higher activity genotypes. The current study was performed to investigate the role of GST enzyme polymorphisms in predicting the survival of patients with AG. METHODS: The medical records of 207 patients with AG from a single cancer center were reviewed retrospectively. Polymorphisms for the GST μ1 (GSTM1), GST θ1 (GSTT1), and GST π1 (GSTP1) enzymes were identified. Overall survival was compared using the Kaplan‐Meier method and Cox proportional hazards analyses adjusting for age, sex, histology, and therapy. RESULTS: Among the patients with oligodendroglial tumors (n = 94), patients who had the GSTT1 null genotype had a 2.9 times increased risk of death (95% confidence interval [CI], 1.3‐6.3) compared with patients who had the GSTT1 non‐null genotype. Adjustment for 1p/19q status did not change the finding. In the patients who had anaplastic astrocytoma (n = 113), the patients with all GSTP1 genotypes except GSTP1 *B/*B had a 3.8 times increased risk of death (95% CI, 0.5‐29.6) compared with patients who had the GSTP1 *B/*B genotype. CONCLUSIONS: In patients with anaplastic oligodendroglial tumors, the GSTT1 null genotype may be associated with poor survival, possibly because of modifications in therapy secondary to increased toxicity. This hypothesis is under investigation. In patients with anaplastic astrocytoma, the GSTP1 *B/*B genotype may confer a survival advantage. Cancer 2010. © 2010 American Cancer Society. Glutathione S‐transferase polymorphisms are associated with survival in patients with anaplastic glial brain tumors.</description><identifier>ISSN: 0008-543X</identifier><identifier>ISSN: 1097-0142</identifier><identifier>EISSN: 1097-0142</identifier><identifier>DOI: 10.1002/cncr.25006</identifier><identifier>PMID: 20187096</identifier><identifier>CODEN: CANCAR</identifier><language>eng</language><publisher>Hoboken: Wiley Subscription Services, Inc., A Wiley Company</publisher><subject>Adolescent ; Adult ; Aged ; anaplastic glioma ; Biological and medical sciences ; Brain Neoplasms - genetics ; Brain Neoplasms - mortality ; Cancer ; Enzymes ; Female ; Genotype ; Genotypes ; glioma ; Glioma - genetics ; Glioma - mortality ; glutathione S‐transferase polymorphisms ; Glutathione Transferase - genetics ; Histology ; Humans ; Male ; Medical sciences ; Middle Aged ; Mortality ; Neurology ; Oligodendroglioma - genetics ; Oligodendroglioma - mortality ; pharmacogenetics ; Polymorphism, Genetic ; Proportional Hazards Models ; survival ; Toxicity ; Tumors ; Tumors of the nervous system. 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Fatih</creatorcontrib><creatorcontrib>Wang, Tao</creatorcontrib><creatorcontrib>Cao, Yumei</creatorcontrib><creatorcontrib>Renfro‐Spelman, Amy</creatorcontrib><creatorcontrib>Aldape, Kenneth D.</creatorcontrib><creatorcontrib>Gilbert, Mark R.</creatorcontrib><creatorcontrib>Bondy, Melissa</creatorcontrib><title>Glutathione S‐transferase polymorphisms are associated with survival in anaplastic glioma patients</title><title>Cancer</title><addtitle>Cancer</addtitle><description>BACKGROUND: Glutathione S‐transferases (GSTs) are polymorphic enzymes that are responsible for glutathione conjugation of alkylators and scavenging of free radicals created by radiation. GST polymorphisms may result in altered or absent enzyme activity and have been associated with survival in patients with cancer. The authors of this report hypothesized that patients with anaplastic glioma (AG) who have GST genotypes that encode for lower activity enzymes will have longer survival than similar patients who have higher activity genotypes. The current study was performed to investigate the role of GST enzyme polymorphisms in predicting the survival of patients with AG. METHODS: The medical records of 207 patients with AG from a single cancer center were reviewed retrospectively. Polymorphisms for the GST μ1 (GSTM1), GST θ1 (GSTT1), and GST π1 (GSTP1) enzymes were identified. Overall survival was compared using the Kaplan‐Meier method and Cox proportional hazards analyses adjusting for age, sex, histology, and therapy. RESULTS: Among the patients with oligodendroglial tumors (n = 94), patients who had the GSTT1 null genotype had a 2.9 times increased risk of death (95% confidence interval [CI], 1.3‐6.3) compared with patients who had the GSTT1 non‐null genotype. Adjustment for 1p/19q status did not change the finding. In the patients who had anaplastic astrocytoma (n = 113), the patients with all GSTP1 genotypes except GSTP1 *B/*B had a 3.8 times increased risk of death (95% CI, 0.5‐29.6) compared with patients who had the GSTP1 *B/*B genotype. CONCLUSIONS: In patients with anaplastic oligodendroglial tumors, the GSTT1 null genotype may be associated with poor survival, possibly because of modifications in therapy secondary to increased toxicity. This hypothesis is under investigation. In patients with anaplastic astrocytoma, the GSTP1 *B/*B genotype may confer a survival advantage. Cancer 2010. © 2010 American Cancer Society. Glutathione S‐transferase polymorphisms are associated with survival in patients with anaplastic glial brain tumors.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>anaplastic glioma</subject><subject>Biological and medical sciences</subject><subject>Brain Neoplasms - genetics</subject><subject>Brain Neoplasms - mortality</subject><subject>Cancer</subject><subject>Enzymes</subject><subject>Female</subject><subject>Genotype</subject><subject>Genotypes</subject><subject>glioma</subject><subject>Glioma - genetics</subject><subject>Glioma - mortality</subject><subject>glutathione S‐transferase polymorphisms</subject><subject>Glutathione Transferase - genetics</subject><subject>Histology</subject><subject>Humans</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Mortality</subject><subject>Neurology</subject><subject>Oligodendroglioma - genetics</subject><subject>Oligodendroglioma - mortality</subject><subject>pharmacogenetics</subject><subject>Polymorphism, Genetic</subject><subject>Proportional Hazards Models</subject><subject>survival</subject><subject>Toxicity</subject><subject>Tumors</subject><subject>Tumors of the nervous system. Phacomatoses</subject><issn>0008-543X</issn><issn>1097-0142</issn><issn>1097-0142</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkcGKFDEQhoMo7rh68QEkF0GEXitJpzt9EZZBV2FR0D14CzXp9E4k3WlTPbPMzUfwGX0Se5xx1YueilAf_1_hY-yxgDMBIF-4weUzqQGqO2whoKkLEKW8yxYAYApdqk8n7AHR5_lZS63usxMJwtTQVAvWXsTNhNM6pMHzj9-_fpsyDtT5jOT5mOKuT3lcB-qJY_YciZILOPmW34RpzWmTt2GLkYeB44BjRJqC49cxpB75iFPww0QP2b0OI_lHx3nKrl6_ulq-KS7fX7xdnl8WTgtdFW2ljNRtq6SpXQONWWHlW1wpKRRIpf2qBtU04L2uRNlVStWdLn0LWpW1btUpe3mIHTer3rdurs4Y7ZhDj3lnEwb792YIa3udtlaaSkCp5oBnx4Ccvmw8TbYP5HyMOPi0ISukMkIKY-D_KIi6qYxq9Iw-P6AuJ6Lsu9uLBNi9QLsXaH8KnOEnf_7hFv1lbAaeHgEkh7GbdblAvzlZz9LF_kBx4G5C9Lt_VNrlu-WHQ_kPZMa1sw</recordid><startdate>20100501</startdate><enddate>20100501</enddate><creator>Kilburn, Lindsay</creator><creator>Okcu, M. Fatih</creator><creator>Wang, Tao</creator><creator>Cao, Yumei</creator><creator>Renfro‐Spelman, Amy</creator><creator>Aldape, Kenneth D.</creator><creator>Gilbert, Mark R.</creator><creator>Bondy, Melissa</creator><general>Wiley Subscription Services, Inc., A Wiley Company</general><general>Wiley-Blackwell</general><scope>IQODW</scope><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>7U1</scope><scope>7U2</scope><scope>C1K</scope><scope>7TK</scope><scope>5PM</scope></search><sort><creationdate>20100501</creationdate><title>Glutathione S‐transferase polymorphisms are associated with survival in anaplastic glioma patients</title><author>Kilburn, Lindsay ; Okcu, M. 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Phacomatoses</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kilburn, Lindsay</creatorcontrib><creatorcontrib>Okcu, M. Fatih</creatorcontrib><creatorcontrib>Wang, Tao</creatorcontrib><creatorcontrib>Cao, Yumei</creatorcontrib><creatorcontrib>Renfro‐Spelman, Amy</creatorcontrib><creatorcontrib>Aldape, Kenneth D.</creatorcontrib><creatorcontrib>Gilbert, Mark R.</creatorcontrib><creatorcontrib>Bondy, Melissa</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Risk Abstracts</collection><collection>Safety Science and Risk</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Neurosciences Abstracts</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Cancer</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kilburn, Lindsay</au><au>Okcu, M. Fatih</au><au>Wang, Tao</au><au>Cao, Yumei</au><au>Renfro‐Spelman, Amy</au><au>Aldape, Kenneth D.</au><au>Gilbert, Mark R.</au><au>Bondy, Melissa</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Glutathione S‐transferase polymorphisms are associated with survival in anaplastic glioma patients</atitle><jtitle>Cancer</jtitle><addtitle>Cancer</addtitle><date>2010-05-01</date><risdate>2010</risdate><volume>116</volume><issue>9</issue><spage>2242</spage><epage>2249</epage><pages>2242-2249</pages><issn>0008-543X</issn><issn>1097-0142</issn><eissn>1097-0142</eissn><coden>CANCAR</coden><abstract>BACKGROUND: Glutathione S‐transferases (GSTs) are polymorphic enzymes that are responsible for glutathione conjugation of alkylators and scavenging of free radicals created by radiation. GST polymorphisms may result in altered or absent enzyme activity and have been associated with survival in patients with cancer. The authors of this report hypothesized that patients with anaplastic glioma (AG) who have GST genotypes that encode for lower activity enzymes will have longer survival than similar patients who have higher activity genotypes. The current study was performed to investigate the role of GST enzyme polymorphisms in predicting the survival of patients with AG. METHODS: The medical records of 207 patients with AG from a single cancer center were reviewed retrospectively. Polymorphisms for the GST μ1 (GSTM1), GST θ1 (GSTT1), and GST π1 (GSTP1) enzymes were identified. Overall survival was compared using the Kaplan‐Meier method and Cox proportional hazards analyses adjusting for age, sex, histology, and therapy. RESULTS: Among the patients with oligodendroglial tumors (n = 94), patients who had the GSTT1 null genotype had a 2.9 times increased risk of death (95% confidence interval [CI], 1.3‐6.3) compared with patients who had the GSTT1 non‐null genotype. Adjustment for 1p/19q status did not change the finding. In the patients who had anaplastic astrocytoma (n = 113), the patients with all GSTP1 genotypes except GSTP1 *B/*B had a 3.8 times increased risk of death (95% CI, 0.5‐29.6) compared with patients who had the GSTP1 *B/*B genotype. CONCLUSIONS: In patients with anaplastic oligodendroglial tumors, the GSTT1 null genotype may be associated with poor survival, possibly because of modifications in therapy secondary to increased toxicity. This hypothesis is under investigation. In patients with anaplastic astrocytoma, the GSTP1 *B/*B genotype may confer a survival advantage. Cancer 2010. © 2010 American Cancer Society. Glutathione S‐transferase polymorphisms are associated with survival in patients with anaplastic glial brain tumors.</abstract><cop>Hoboken</cop><pub>Wiley Subscription Services, Inc., A Wiley Company</pub><pmid>20187096</pmid><doi>10.1002/cncr.25006</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; Wiley Journals; Wiley Free Content; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection
subjects Adolescent
Adult
Aged
anaplastic glioma
Biological and medical sciences
Brain Neoplasms - genetics
Brain Neoplasms - mortality
Cancer
Enzymes
Female
Genotype
Genotypes
glioma
Glioma - genetics
Glioma - mortality
glutathione S‐transferase polymorphisms
Glutathione Transferase - genetics
Histology
Humans
Male
Medical sciences
Middle Aged
Mortality
Neurology
Oligodendroglioma - genetics
Oligodendroglioma - mortality
pharmacogenetics
Polymorphism, Genetic
Proportional Hazards Models
survival
Toxicity
Tumors
Tumors of the nervous system. Phacomatoses
title Glutathione S‐transferase polymorphisms are associated with survival in anaplastic glioma patients
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