Correlation Between Nuclear Factor E2-Related Factor 2 Expression and Gastric Cancer Progression

Nuclear factor E2-related factor 2 (Nrf2) plays an anti-oxidative and phase II detoxification function via its up-regulation on various antioxidant response elements (ARE) genes. Nrf2 can protect both normal and cancer cells from damages of cell stress, thereby exerting a critical role in the develo...

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Veröffentlicht in:Medical science monitor 2015-09, Vol.21, p.2893-2899
Hauptverfasser: Zheng, Hongyu, Nong, Zhiwei, Lu, Guohao
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description Nuclear factor E2-related factor 2 (Nrf2) plays an anti-oxidative and phase II detoxification function via its up-regulation on various antioxidant response elements (ARE) genes. Nrf2 can protect both normal and cancer cells from damages of cell stress, thereby exerting a critical role in the development of cancer. The expression and significance of Nrf2 in gastric cancer, however, has not been reported. This study thus aimed to investigate the expression of Nrf2 in gastric cancer tissues via immunohistochemical (IHC) staining. Gastric carcinoma tissues from a total of 175 patients during surgical resection were examined for Nfr2 expression profiles using IHC staining on paraffin-embedded slides. Between-group-comparisons were performed by chi-square, Fisher's exact, or Mann-Whitney U test. The correlation between Nfr2 expression and clinical indexes was further analyzed by Kaplan-Meier test, univariate/multivariate analysis, and log-rank test. Nrf2 is mainly expressed in nuclei of gastric carcinoma tissues, with significant correlation with clinical indexes, including tumor size, invasive depth, lymph node metastasis, and invasion. Patients with Nrf2-positive expression had significantly lower survival rates compared to those in the negative group (p
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Nrf2 can protect both normal and cancer cells from damages of cell stress, thereby exerting a critical role in the development of cancer. The expression and significance of Nrf2 in gastric cancer, however, has not been reported. This study thus aimed to investigate the expression of Nrf2 in gastric cancer tissues via immunohistochemical (IHC) staining. Gastric carcinoma tissues from a total of 175 patients during surgical resection were examined for Nfr2 expression profiles using IHC staining on paraffin-embedded slides. Between-group-comparisons were performed by chi-square, Fisher's exact, or Mann-Whitney U test. The correlation between Nfr2 expression and clinical indexes was further analyzed by Kaplan-Meier test, univariate/multivariate analysis, and log-rank test. Nrf2 is mainly expressed in nuclei of gastric carcinoma tissues, with significant correlation with clinical indexes, including tumor size, invasive depth, lymph node metastasis, and invasion. Patients with Nrf2-positive expression had significantly lower survival rates compared to those in the negative group (p&lt;0.01), with chemo-resistance against 5-fluorouracil (5-FU) (p&lt;0.05). 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Nrf2 can protect both normal and cancer cells from damages of cell stress, thereby exerting a critical role in the development of cancer. The expression and significance of Nrf2 in gastric cancer, however, has not been reported. This study thus aimed to investigate the expression of Nrf2 in gastric cancer tissues via immunohistochemical (IHC) staining. Gastric carcinoma tissues from a total of 175 patients during surgical resection were examined for Nfr2 expression profiles using IHC staining on paraffin-embedded slides. Between-group-comparisons were performed by chi-square, Fisher's exact, or Mann-Whitney U test. The correlation between Nfr2 expression and clinical indexes was further analyzed by Kaplan-Meier test, univariate/multivariate analysis, and log-rank test. Nrf2 is mainly expressed in nuclei of gastric carcinoma tissues, with significant correlation with clinical indexes, including tumor size, invasive depth, lymph node metastasis, and invasion. Patients with Nrf2-positive expression had significantly lower survival rates compared to those in the negative group (p&lt;0.01), with chemo-resistance against 5-fluorouracil (5-FU) (p&lt;0.05). Nrf2 expression is positively correlated with invasive gastric cancer, suggesting its utility as a predictive index for unfavorable prognosis.</description><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>Antineoplastic Agents - therapeutic use</subject><subject>Antioxidants - chemistry</subject><subject>Carcinoma - metabolism</subject><subject>Clinical Research</subject><subject>Drug Resistance, Neoplasm</subject><subject>Female</subject><subject>Fluorouracil - therapeutic use</subject><subject>Gene Expression Profiling</subject><subject>Gene Expression Regulation, Neoplastic</subject><subject>Humans</subject><subject>Immunohistochemistry</subject><subject>Kaplan-Meier Estimate</subject><subject>Lymphatic Metastasis</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Multivariate Analysis</subject><subject>Neoplasm Invasiveness</subject><subject>NF-E2-Related Factor 2 - metabolism</subject><subject>Prognosis</subject><subject>Response Elements</subject><subject>Stomach Neoplasms - metabolism</subject><subject>Up-Regulation</subject><issn>1643-3750</issn><issn>1234-1010</issn><issn>1643-3750</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVUctOwzAQtBCIR-HEHeWIhALe2HGcCxJULSBRQDzOZuNsICiNi53y-HtaWhCcdrQzO7PSMLYL_BASleZHo7vRoc6lVNkK2wQlRSyylK_-wRtsK4QXzhOteLrONhIlgYPSm-yx77ynBrvatdEpde9EbXQ1tQ2hj4ZoO-ejQRLfziVU_mySaPAx8RTC_ArbMjrD0PnaRn1sLfnoxrunJb3N1ipsAu0sZ489DAf3_fP48vrson9yGVspsy4GEDoHTLHUVVEJtChUCYpUobkuIBfaziCJBHMAygpVaRQSVJ4ppUsNoseOF76TaTGm0lLbeWzMxNdj9J_GYW3-M239bJ7cm5FpztMsnxnsLw28e51S6My4DpaaBlty02AgA80zydU862Ahtd6F4Kn6jQFuvjsxs07MopOZeu_vZ7_anxLEFziBh8A</recordid><startdate>20150927</startdate><enddate>20150927</enddate><creator>Zheng, Hongyu</creator><creator>Nong, Zhiwei</creator><creator>Lu, Guohao</creator><general>International Scientific Literature, 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>7X8</scope><scope>5PM</scope></search><sort><creationdate>20150927</creationdate><title>Correlation Between Nuclear Factor E2-Related Factor 2 Expression and Gastric Cancer Progression</title><author>Zheng, Hongyu ; Nong, Zhiwei ; Lu, Guohao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c447t-113891a5ad8fbf3aca36d16e6b808b1938c6b8e32a911e7b6f8a341697668d813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Adult</topic><topic>Aged</topic><topic>Aged, 80 and over</topic><topic>Antineoplastic Agents - therapeutic use</topic><topic>Antioxidants - chemistry</topic><topic>Carcinoma - metabolism</topic><topic>Clinical Research</topic><topic>Drug Resistance, Neoplasm</topic><topic>Female</topic><topic>Fluorouracil - therapeutic use</topic><topic>Gene Expression Profiling</topic><topic>Gene Expression Regulation, Neoplastic</topic><topic>Humans</topic><topic>Immunohistochemistry</topic><topic>Kaplan-Meier Estimate</topic><topic>Lymphatic Metastasis</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Multivariate Analysis</topic><topic>Neoplasm Invasiveness</topic><topic>NF-E2-Related Factor 2 - metabolism</topic><topic>Prognosis</topic><topic>Response Elements</topic><topic>Stomach Neoplasms - metabolism</topic><topic>Up-Regulation</topic><toplevel>online_resources</toplevel><creatorcontrib>Zheng, Hongyu</creatorcontrib><creatorcontrib>Nong, Zhiwei</creatorcontrib><creatorcontrib>Lu, Guohao</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Medical science monitor</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zheng, Hongyu</au><au>Nong, Zhiwei</au><au>Lu, Guohao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Correlation Between Nuclear Factor E2-Related Factor 2 Expression and Gastric Cancer Progression</atitle><jtitle>Medical science monitor</jtitle><addtitle>Med Sci Monit</addtitle><date>2015-09-27</date><risdate>2015</risdate><volume>21</volume><spage>2893</spage><epage>2899</epage><pages>2893-2899</pages><issn>1643-3750</issn><issn>1234-1010</issn><eissn>1643-3750</eissn><abstract>Nuclear factor E2-related factor 2 (Nrf2) plays an anti-oxidative and phase II detoxification function via its up-regulation on various antioxidant response elements (ARE) genes. Nrf2 can protect both normal and cancer cells from damages of cell stress, thereby exerting a critical role in the development of cancer. The expression and significance of Nrf2 in gastric cancer, however, has not been reported. This study thus aimed to investigate the expression of Nrf2 in gastric cancer tissues via immunohistochemical (IHC) staining. Gastric carcinoma tissues from a total of 175 patients during surgical resection were examined for Nfr2 expression profiles using IHC staining on paraffin-embedded slides. Between-group-comparisons were performed by chi-square, Fisher's exact, or Mann-Whitney U test. The correlation between Nfr2 expression and clinical indexes was further analyzed by Kaplan-Meier test, univariate/multivariate analysis, and log-rank test. Nrf2 is mainly expressed in nuclei of gastric carcinoma tissues, with significant correlation with clinical indexes, including tumor size, invasive depth, lymph node metastasis, and invasion. Patients with Nrf2-positive expression had significantly lower survival rates compared to those in the negative group (p&lt;0.01), with chemo-resistance against 5-fluorouracil (5-FU) (p&lt;0.05). Nrf2 expression is positively correlated with invasive gastric cancer, suggesting its utility as a predictive index for unfavorable prognosis.</abstract><cop>United States</cop><pub>International Scientific Literature, Inc</pub><pmid>26410168</pmid><doi>10.12659/MSM.894467</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aged
Aged, 80 and over
Antineoplastic Agents - therapeutic use
Antioxidants - chemistry
Carcinoma - metabolism
Clinical Research
Drug Resistance, Neoplasm
Female
Fluorouracil - therapeutic use
Gene Expression Profiling
Gene Expression Regulation, Neoplastic
Humans
Immunohistochemistry
Kaplan-Meier Estimate
Lymphatic Metastasis
Male
Middle Aged
Multivariate Analysis
Neoplasm Invasiveness
NF-E2-Related Factor 2 - metabolism
Prognosis
Response Elements
Stomach Neoplasms - metabolism
Up-Regulation
title Correlation Between Nuclear Factor E2-Related Factor 2 Expression and Gastric Cancer Progression
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