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Lee KY, Beatson EL, Steinberg SM, Chau CH, Price DK, Figg WD. Bridging Health Disparities: a Genomics and Transcriptomics Analysis by Race in Prostate Cancer. J Racial Ethn Health Disparities 2024; 11:492-504. [PMID: 36810713 PMCID: PMC10686215 DOI: 10.1007/s40615-023-01534-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 01/28/2023] [Accepted: 02/03/2023] [Indexed: 02/23/2023]
Abstract
As the era of cancer genomics expands, disproportionate rates of prostate cancer incidence and mortality by race have demonstrated increasing relevance in clinical settings. While Black men are most particularly affected, as data has historically shown, the opposite is observed for Asian men, thus creating a basis for exploring genomic pathways potentially involved in mediating these opposing trends. Studies on racial differences are limited by sample size, but recent expanding collaborations between research institutions may improve these imbalances to enhance investigations on health disparities from the genomics front. In this study, we performed a race genomics analysis using GENIE v11, released in January 2022, to investigate mutation and copy number frequencies of select genes in both primary and metastatic patient tumor samples. Further, we investigate the TCGA race cohort to conduct an ancestry analysis and to identify differentially expressed genes highly upregulated in one race and subsequently downregulated in another. Our findings highlight pathway-oriented genetic mutation frequencies characterized by race, and further, we identify candidate gene transcripts that have differential expression between Black and Asian men.
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Affiliation(s)
- Kristi Y Lee
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Erica L Beatson
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Seth M Steinberg
- Biostatistics and Data Management Section, Office of the Clinical Director, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Cindy H Chau
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Douglas K Price
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - William D Figg
- Molecular Pharmacology Section, Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Blackman E, Ashing K, Gibbs D, Kuo YM, Andrews A, Ramakodi M, Devarajan K, Bucci J, Jean-Louis G, Richards-Waritay O, Wilson B, Bowen C, Edi E, Tolbert V, Noumbissi R, Cabral DN, Oliver J, Roberts R, Tulloch-Reid M, Ragin C. The Cancer Prevention Project of Philadelphia: preliminary findings examining diversity among the African diaspora. ETHNICITY & HEALTH 2021; 26:659-675. [PMID: 30453751 PMCID: PMC6526085 DOI: 10.1080/13557858.2018.1548695] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 10/22/2018] [Indexed: 06/09/2023]
Abstract
Objective: Cancer mortality inequity among persons of African Ancestry is remarkable. Yet, Black inclusion in cancer biology research is sorely lacking and warrants urgent attention. Epidemiologic research linking African Ancestry and the African Diaspora to disease susceptibility and outcomes is critical for understanding the significant and troubling health disparities among Blacks. Therefore, in a cohort of diverse Blacks, this study examined differences in genetic ancestry informative markers (AIMs) in the DNA repair pathway and the cancer related biomarker 4-(Methylnitrosamino)-1-(3-pyridyl)-1-butanol (NNAL).Methods: Participants completed a questionnaire and provided bio-specimens. AIMs in or around DNA repair pathway genes were analyzed to assess differences in minor allele frequency (MAF) across the 3 ethnic subgroups. NNAL concentration in urine was measured among current smokers.Results: To date the cohort includes 852 participants, 88.3% being Black. Of the 752 Blacks, 51.3% were US-born, 27.8% were Caribbean-born, and 19.6% were Africa-born. Current and former smokers represented 14.9% and 10.0%, respectively. US-born Blacks were more likely to be smokers and poor metabolizers of NNAL. Two-way hierarchical clustering revealed MAF of AIMs differed across the 3 ethnic subgroups.Conclusion: Our findings are consistent with the emerging literature demonstrating Black heterogeneity underscoring African Ancestry genetic subgroup differences - specifically relevant to cancer. Further investigations, with data harmonization and sharing, are urgently needed to begin to map African Ancestry cancer biomarkers as well as race, and race by place\region comparative biomarkers to inform cancer prevention and treatment in the era of precision medicine.
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Affiliation(s)
- Elizabeth Blackman
- Cancer Prevention and Control Program, Fox Chase Cancer Center-Temple Health, Philadelphia, USA
- Department of Epidemiology and Biostatistics, College of Public Health, Temple University, Philadelphia, USA
- African-Caribbean Cancer Consortium, Philadelphia, USA
| | - Kimlin Ashing
- Center of Community Alliance for Research & Education, Division of Health Equity, City of Hope Medical Center, Duarte, USA
| | - Denise Gibbs
- Cancer Prevention and Control Program, Fox Chase Cancer Center-Temple Health, Philadelphia, USA
- African-Caribbean Cancer Consortium, Philadelphia, USA
| | - Yin-Ming Kuo
- Cancer Epigenetics Program, Fox Chase Cancer Center-Temple Health, Philadelphia, USA
| | - Andrew Andrews
- Cancer Epigenetics Program, Fox Chase Cancer Center-Temple Health, Philadelphia, USA
| | - Meganathan Ramakodi
- Cancer Prevention and Control Program, Fox Chase Cancer Center-Temple Health, Philadelphia, USA
- African-Caribbean Cancer Consortium, Philadelphia, USA
- Department of Biology, Temple University, Philadelphia, USA
| | - Karthik Devarajan
- Biostatistics and Bioinformatics Facility, Fox Chase Cancer Center, Philadelphia, USA
| | - Jackie Bucci
- Nutrition Program, City University of New York at Hunter College, New York, USA
- Temple University and Hunter College Cancer Health Disparity Research Institute Cancer Research Training Program, Fox Chase Cancer Center, Philadelphia, USA
| | | | | | - Barbara Wilson
- Caribbean Festival & Cultural Organization of Pennsylvania, Philadelphia, USA
| | - Carlene Bowen
- Thomas Jefferson University Hospital, Philadelphia, USA
| | - Eric Edi
- The Coalition of African Communities (AFRICOM), Philadelphia, USA
| | - Vera Tolbert
- The Coalition of African Communities (AFRICOM), Philadelphia, USA
| | | | - Daramola N. Cabral
- African-Caribbean Cancer Consortium, Philadelphia, USA
- Department of Science, Math, and Technology, SUNY Empire State College, Brooklyn, USA
| | - JoAnn Oliver
- African-Caribbean Cancer Consortium, Philadelphia, USA
- Capstone College of Nursing, Tuscaloosa, USA
| | - Robin Roberts
- African-Caribbean Cancer Consortium, Philadelphia, USA
- School of Clinical Medicine & Research, University of the West Indies, Nassau, Bahamas
- Princess Margaret Hospital, Nassau, Bahamas
| | - Marshall Tulloch-Reid
- African-Caribbean Cancer Consortium, Philadelphia, USA
- Caribbean Institute for Health Research, University of the West Indies, Kingston, Jamaica
| | - Camille Ragin
- Cancer Prevention and Control Program, Fox Chase Cancer Center-Temple Health, Philadelphia, USA
- Department of Epidemiology and Biostatistics, College of Public Health, Temple University, Philadelphia, USA
- African-Caribbean Cancer Consortium, Philadelphia, USA
- Nutrition Program, City University of New York at Hunter College, New York, USA
- Department of Otolaryngology-Head and Neck Surgery, Lewis Katz School of Medicine, Temple University School of Medicine, Philadelphia, USA
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Yang C, He XF. Evaluation of association studies and a systematic review and meta-analysis of CYP1A1 T3801C and A2455G polymorphisms in breast cancer risk. PLoS One 2021; 16:e0249632. [PMID: 33909612 PMCID: PMC8081265 DOI: 10.1371/journal.pone.0249632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 03/23/2021] [Indexed: 12/01/2022] Open
Abstract
Background Nine previous meta-analyses have been published to analyze the CYP1A1 T3801C and A2455G polymorphisms with BC risk. However, they did not assess the credibility of statistically significant associations. In addition, many new studies have been reported on the above themes. Hence, we conducted an updated systematic review and meta-analysis to further explore the above issues. Objectives To explore the association on the CYP1A1 T3801C and A2455G polymorphisms with BC risk. Methods Preferred Reporting Items for Systematic Reviews and Meta-Analyses (The PRISMA) were used. Results In this study, there were 63 case–control studies from 56 publications on the CYP1A1 T3801C polymorphism (including 20,825 BC cases and 25,495 controls) and 51 case–control studies from 46 publications on the CYP1A1 A2455G polymorphism (including 20,124 BC cases and 29,183 controls). Overall, the CYP1A1 T3801C polymorphism was significantly increased BC risk in overall analysis, especially in Asians and Indians; the CYP1A1 A2455G polymorphism was associated with BC risk in overall analysis, Indians, and postmenopausal women. However, when we used BFDP correction, associations remained significant only in Indians (CC vs. TT + TC: BFDP < 0.001) for the CYP1A1 T3801C polymorphism with BC risk, but not in the CYP1A1 A2455G polymorphism. In addition, when we further performed sensitivity analysis, no significant association in overall analysis and any subgroup. Moreover, we found that all studies from Indians was low quality. Therefore, the results may be not credible. Conclusion This meta-analysis strongly indicates that there is no significant association between the CYP1A1 T3801C and A2455G polymorphisms and BC risk. The increased BC risk may most likely on account of false-positive results.
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Affiliation(s)
- Chen Yang
- Teaching Reform Class of 2016 of the First Clinical College, Changzhi Medical College, Shanxi, Changzhi, China
| | - Xiao-Feng He
- Institute of Evidence-based medicine, Heping Hospital Affiliated to Changzhi Medical College, Shanxi, Changzhi, China
- * E-mail:
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Meunier ME, Blanchet P, Neuzillet Y, Lebret T, Brureau L. A review of new hormonal therapies for prostate cancer in black men: is there enough data? BMC Cancer 2021; 21:61. [PMID: 33446131 PMCID: PMC7807857 DOI: 10.1186/s12885-020-07780-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 12/30/2020] [Indexed: 11/13/2022] Open
Abstract
Background Prostate cancer among black men is known to have specific molecular characteristics, especially the androgen receptor or enzymes related to the androgen metabolism. These targets are keys to the action of new hormonal therapies. Nevertheless, literature has a lack of data regarding black men. We aimed to gather the available literature data on new hormonal therapies among black populations. Methods We conducted a literature review from the PubMed / MEDLINE database until October 2020. All clinical studies of new hormonal therapies and black populations, regardless of methodology, were included. Results Four studies provided data on new hormonal therapies in black populations. Three studies reported a PSA decline in black patients treated with Abiraterone, higher in black men than in white men. Overall survival also appears to be higher in black patients treated with Abiraterone only or first. Conclusion Few articles have evaluated the effectiveness and safety of use of these treatments among black populations. The first results seem to show that Abiraterone can provide a benefit in overall survival in black populations. Prospective studies are needed to answer these questions in the future.
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Affiliation(s)
- Matthias E Meunier
- Department of Urology, Foch Hospital, 40 rue Worth, 92150, Suresnes, France. .,University of Versailles-Saint-Quentin-en-Yvelines, Versailles, France.
| | - Pascal Blanchet
- Department of Urology, Pointe-à-Pitre University Hospital, Pointe-à-Pitre, Guadeloupe, France.,Inserm, UMR_S 1085 - IRSET, Pointe-à-Pitre, Guadeloupe, France
| | - Yann Neuzillet
- Department of Urology, Foch Hospital, 40 rue Worth, 92150, Suresnes, France.,University of Versailles-Saint-Quentin-en-Yvelines, Versailles, France
| | - Thierry Lebret
- Department of Urology, Foch Hospital, 40 rue Worth, 92150, Suresnes, France.,University of Versailles-Saint-Quentin-en-Yvelines, Versailles, France
| | - Laurent Brureau
- Department of Urology, Pointe-à-Pitre University Hospital, Pointe-à-Pitre, Guadeloupe, France.,Inserm, UMR_S 1085 - IRSET, Pointe-à-Pitre, Guadeloupe, France
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5
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Effah CY, Wang L, Agboyibor C, Drokow EK, Yu S, Wang W, Wu Y. Polymorphism in the Androgen Biosynthesis Gene (CYP17), a Risk for Prostate Cancer: A Meta-Analysis. Am J Mens Health 2020; 14:1557988320959984. [PMID: 32964792 PMCID: PMC7518003 DOI: 10.1177/1557988320959984] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Gene polymorphism is one of the few factors that increases the risk of prostate cancer. T to C substitution in the 5’ promoter region of the CYP17 gene is hypothesized to increase the rate of gene transcription, increase androgen production, and thereby increase the risk of prostate cancer. Nevertheless, the inconsistencies originating from studies on CYP17 polymorphism and prostate cancer prompted this meta-analysis, to decipher the association between CYP17 polymorphism and prostate cancer. Most case-control studies addressing CYP17 polymorphism and prostate cancer were exhaustively searched from Web of Science, Google Scholar, and PubMed. The various genotype distributions as well as the minor allele distributions were retrieved. Pooled odds ratios (ORs) with their 95% CI and estimates of the Hardy–Weinberg Equilibrium were calculated. Analyses were performed using the RevMan v.5.3 software and SPSS v.21. There was high-pooled heterogeneity (I2 = 87.0%, OR = .42, CI [.39, .45], and p < .001) among the A2 versus A1 allele. With the per-allele model (A2 versus A1), ethnicity was a major risk factor to prostate cancer, with Asians recording the highest risk (OR = 12.61, 95% CI [8.77, 18.12]). From the genotype models, A1/A1 versus A2/A2 (OR = 3.02, 95% CI [2.65, 3.44]) and A1/A2 versus A2/A2 (OR = 4.39, 95% CI [3.86, 5.00]) were all significantly associated with prostate cancer. Although some genotype models were associated with the risk of prostate cancer, we should be mindful when interpreting the results of this study because of the limited number of studies and the small sample size used.
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Affiliation(s)
| | - Ling Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Clement Agboyibor
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Emmanuel Kwateng Drokow
- Department of Radiation Oncology, Zhengzhou University People's Hospital & Henan Provincial People's Hospital Henan, China
| | - Songcheng Yu
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Wei Wang
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou, China
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Roth AD, Lee MY. Idiosyncratic Drug-Induced Liver Injury (IDILI): Potential Mechanisms and Predictive Assays. BIOMED RESEARCH INTERNATIONAL 2017; 2017:9176937. [PMID: 28133614 PMCID: PMC5241492 DOI: 10.1155/2017/9176937] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 11/29/2016] [Indexed: 12/16/2022]
Abstract
Idiosyncratic drug-induced liver injury (IDILI) is a significant source of drug recall and acute liver failure (ALF) in the United States. While current drug development processes emphasize general toxicity and drug metabolizing enzyme- (DME-) mediated toxicity, it has been challenging to develop comprehensive models for assessing complete idiosyncratic potential. In this review, we describe the enzymes and proteins that contain polymorphisms believed to contribute to IDILI, including ones that affect phase I and phase II metabolism, antioxidant enzymes, drug transporters, inflammation, and human leukocyte antigen (HLA). We then describe the various assays that have been developed to detect individual reactions focusing on each of the mechanisms described in the background. Finally, we examine current trends in developing comprehensive models for examining these mechanisms. There is an urgent need to develop a panel of multiparametric assays for diagnosing individual toxicity potential.
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Affiliation(s)
- Alexander D. Roth
- Department of Chemical & Biomedical Engineering, Cleveland State University, 1960 East 24th Street, Cleveland, OH 44115-2214, USA
| | - Moo-Yeal Lee
- Department of Chemical & Biomedical Engineering, Cleveland State University, 1960 East 24th Street, Cleveland, OH 44115-2214, USA
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Brureau L, Moningo D, Emeville E, Ferdinand S, Punga A, Lufuma S, Blanchet P, Romana M, Multigner L. Polymorphisms of Estrogen Metabolism-Related Genes and Prostate Cancer Risk in Two Populations of African Ancestry. PLoS One 2016; 11:e0153609. [PMID: 27074016 PMCID: PMC4830606 DOI: 10.1371/journal.pone.0153609] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 03/31/2016] [Indexed: 11/30/2022] Open
Abstract
Background Estrogens are thought to play a critical role in prostate carcinogenesis. It has been suggested that polymorphisms of genes encoding enzymes involved in estrogen metabolism are risk factors for prostate cancer. However, few studies have been performed on populations of African ancestry, which are known to have a high risk of prostate cancer. Objective We investigated whether functional polymorphisms of CYP17, CYP19, CYP1B1, COMT and UGT1A1 affected the risk of prostate cancer in two different populations of African ancestry. Methods In Guadeloupe (French West Indies), we compared 498 prostate cancer patients and 565 control subjects. In Kinshasa (Democratic Republic of Congo), 162 prostate cancer patients were compared with 144 controls. Gene polymorphisms were determined by the SNaPshot technique or short tandem repeat PCR analysis. Logistic regression was used to estimate adjusted odds ratios (OR) and 95% confidence intervals (CI). Results The AA genotype and the A allele of rs4680 (COMT) appeared to be inversely associated with the risk of prostate cancer in adjusted models for both Afro-Caribbean and native African men. For the A allele, a significant inverse association was observed among cases with low-grade Gleason scores and localized clinical stage, in both populations. Conclusions These preliminary results support the hypothesis that polymorphisms of genes encoding enzymes involved in estrogen metabolism may modulate the risk of prostate cancer in populations of African ancestry.
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Affiliation(s)
- Laurent Brureau
- Inserm, U1085 - IRSET, Pointe-à-Pitre, Guadeloupe, France
- Service d’Urologie, CHU de Pointe à Pitre, Pointe à Pitre, Guadeloupe, France
- Université des Antilles, Pointe-à-Pitre, Guadeloupe, France
| | - Dieudonné Moningo
- Service d’Urologie, Cliniques Universitaires de Kinshasa, Kinshasa, Democratic Republic of Congo
| | - Elise Emeville
- Inserm, U1085 - IRSET, Pointe-à-Pitre, Guadeloupe, France
- Université de Rennes 1, Rennes, France
| | - Séverine Ferdinand
- Université des Antilles, Pointe-à-Pitre, Guadeloupe, France
- Inserm, U1134, Pointe-à-Pitre, Guadeloupe, France
| | - Augustin Punga
- Service d’Urologie, Cliniques Universitaires de Kinshasa, Kinshasa, Democratic Republic of Congo
| | - Simon Lufuma
- Service d’Urologie, Cliniques Universitaires de Kinshasa, Kinshasa, Democratic Republic of Congo
| | - Pascal Blanchet
- Inserm, U1085 - IRSET, Pointe-à-Pitre, Guadeloupe, France
- Service d’Urologie, CHU de Pointe à Pitre, Pointe à Pitre, Guadeloupe, France
- Université des Antilles, Pointe-à-Pitre, Guadeloupe, France
| | - Marc Romana
- Université des Antilles, Pointe-à-Pitre, Guadeloupe, France
- Inserm, U1134, Pointe-à-Pitre, Guadeloupe, France
| | - Luc Multigner
- Inserm, U1085 - IRSET, Pointe-à-Pitre, Guadeloupe, France
- Université de Rennes 1, Rennes, France
- * E-mail:
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Zhang JW, Yu WJ, Sheng XM, Chang FH, Bai TY, Lv XL, Wang G, Liu SZ. Association of CYP2E1 and NAT2 polymorphisms with lung cancer susceptibility among Mongolian and Han populations in the Inner Mongolian region. Asian Pac J Cancer Prev 2015; 15:9203-10. [PMID: 25422202 DOI: 10.7314/apjcp.2014.15.21.9203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
PURPOSE To explore associations of CYP2E1 and NAT2 polymorphisms with lung cancer susceptibility among Mongolian and Han populations in the Inner Mongolian region. MATERIALS AND METHODS CYP2E1 and NAT2 polymorphisms were detected by PCR-RFLP in 930 lung cancer patients and 1000 controls. RESULTS (1) Disequilibrium of the distribution of NAT2 polymorphism was found in lung cancer patients among Han and Mongolian populations (p=0.031). (2) Lung cancer risk was higher in individuals with c1, D allele of CYP2E1 RsaI/PstI, DraI polymorphisms and slow acetylation of NAT2 (c1 compared with c2, OR=1.382, 95%CI: 1.178- 1.587, p=0.003; D compared with C, OR=1.241, 95%CI: 1.053-1.419, P<0.001; slow acetylation compared with rapid acetylation, OR=1.359, 95%CI:1.042-1.768, p=0.056) (3) Compared with c2/c2 and rapid acetylation, c1/c1 together with slow acetylation synergetically increased risk of lung cancer 2.83 fold. (4) Smokers with CYP2E1 c1/c1, DD, and NAT2 slow acetylation have 2.365, 1.916, 1.841 fold lung cancer risk than others with c2/c2, CC and NAT2 rapid acetylation, respectively. (5) Han smokers with NAT2 slow acetylation have 1.974 fold lung cancer risk than others with rapid acetylation. CONCLUSIONS Disequilibrium distribution of NAT2 polymorphism was found in lung cancer patients among Han and Mongolian populations. Besides, Han smokers with NAT2 slow acetylation may have higher lung cancer risk compared with rapid acetylation couterparts. CYP2E1 c1/ c1, DD and NAT2 slow acetylation, especially combined with smoking, contributes to the development of lung cancer. CYP2E1 c1/c1 or DD genotype and NAT2 slow acetylation have strong synergistic action in increasing lung cancer risk.
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Affiliation(s)
- Jing-Wen Zhang
- Department of Pharmacology of Pharmaceutical College, Inner Mongolia Medical University, Hohhot, China E-mail :
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Floriano-Sanchez E, Rodriguez NC, Bandala C, Coballase-Urrutia E, Lopez-Cruz J. CYP3A4 expression in breast cancer and its association with risk factors in Mexican women. Asian Pac J Cancer Prev 2015; 15:3805-9. [PMID: 24870798 DOI: 10.7314/apjcp.2014.15.8.3805] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In Mexico, breast cancer (BCa) is the leading type of cancer in women. Cytochrome P450 (CYP450) is a superfamily of major oxidative enzymes that metabolize carcinogens and many antineoplastic drugs. In addition, these enzymes have influence on tumor development and tumor response to therapy. In this report, we analyzed the protein expression in patients with BCa and in healthy women. Links with some clinic-pathological characteristic were also assessed. MATERIALS AND METHODS Immunohistochemical analyses were conducted on 48 sets of human breast tumors and normal breast tissues enrolled in Hospital Militar de Especialidades de la Mujer y Neonatologia and Hospital Central Militar, respectively, during the time period from 2010 to 2011. Informed consent was obtained from all participants. Statistical analysis was performed using χ2 or Fisher exact tests to estimate associations and the Mann Whitney U test for comparison of group means. RESULTS We found a significant CYP3A4 overexpression in BCa stroma and gland regions in comparison with healthy tissue. A significant association between protein expression with smoking, alcoholism and hormonal contraceptives use was also observed. Additionally, we observed estrogen receptor (ER) and progesterone receptor (PR) positive association in BCa. CONCLUSIONS We suggest that CYP3A4 expression promotes BCa development and can be used in the prediction of tumor response to different treatments. One therapeutic approach may thus be to block CYP3A4 function.
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Affiliation(s)
- Esau Floriano-Sanchez
- Section of Research and Graduate Studies, Instituto Politecnico Nacional, Mexico City E-mail : ;
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Lao X, Peng Q, Lu Y, Li S, Qin X, Chen Z, Chen J. Glutathione S-transferase gene GSTM1, gene-gene interaction, and gastric cancer susceptibility: evidence from an updated meta-analysis. Cancer Cell Int 2014; 14:127. [PMID: 25477765 PMCID: PMC4255933 DOI: 10.1186/s12935-014-0127-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 11/10/2014] [Indexed: 12/11/2022] Open
Abstract
Background The null genotype of GSTM1 have been implicated in gastric cancer risk, but numerous individual studies showed mixed, or even conflicting results. Thus, a meta-analysis was performed. Results We identified 54 individual studies involving 9,322 cases and 15,118 controls through computer-based searches of PubMed, Embase, and Cochrane Library. It was found that the null genotype of GSTM1 was associated with an increased gastric cancer risk (OR = 1.207, 95% CI: 1.106-1.317, P < 0.001), under the random-effects model (I2 : 49.9%, PQ <0.001). From stratification analyses for ethnicity, alcohol drinking, Helicobacter pylori infection, an effect modification of gastric cancer risk was found in the subgroups of ethnicity, smoking status, Helicobacter pylori infection, whereas null result was found in the subgroups of alcohol drinking. We also undertook gene-gene interaction analysis between GSTM1 and GSTT1 genes for gastric cancer risk, and the results indicated that the dual null genotypes of GSTM1 and GSTT1 might elevate the risk of gastric cancer (OR = 1.505, 95% CI: 1.165-1.944, P = 002). Conclusions This meta-analysis suggests that the null genotype of GSTM1 may be a important genetic risk factor for gastric cancer development.
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Affiliation(s)
- Xianjun Lao
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region China
| | - Qiliu Peng
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region China
| | - Yu Lu
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region China
| | - Shan Li
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region China
| | - Xue Qin
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region China
| | - Zhiping Chen
- Department of Occupational Health and Environmental Health, School of Public Health at Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region China
| | - Junqiang Chen
- Department of Gastrointestinal Surgery, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region China
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Lao X, Qin X, Peng Q, Chen Z, Lu Y, Liu Y, Li S. Association of CYP1B1 Leu432Val polymorphism and lung cancer risk: an updated meta-analysis. Lung 2014; 192:739-48. [PMID: 24989113 DOI: 10.1007/s00408-014-9618-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 06/18/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND Cytochrome P4501B1 (CYP1B1) a phase I enzyme, is involved in the activation of a broad spectrum of procarcinogens. Impacts on the catalytic activity of the CYP1B1 enzyme, as well as an association of the Leu432Val polymorphism with the risk of lung cancer, have been described; however, the results remain controversial. METHODS We conducted a meta-analysis of all available studies to clarify the effects of the Leu432Val polymorphism on lung cancer risks basing on 2,543 lung cancer cases and 3,304 controls from ten separate comparisons. We also performed subgroup analyses by ethnicity (categorized as Caucasian, Asian and African-American), gender, smoking status ,and histological type. A pooled odds ratio (OR) with 95% confidence interval (CI) was calculated to estimate the strength of the association. RESULTS A significantly increased risk was found in our meta-analysis in the overall population (Val/Val vs. Leu/Leu: OR = 1.371, 95% CI 1.137-1.652, P = 0.001). In subgroup analysis, significant associations with lung cancer susceptibility were also found in Caucasians (Val/Val vs. Leu/Leu: OR = 1.312, 95% CI 1.075-1.602, P = 0.008), females (Val/Val vs. Leu/Leu: OR = 1.472, 95% CI 1.097-1.976, P = 0.010), and smokers (dominant model Leu/Val + Val/Val vs. Leu/Leu: OR = 1.257, 95% CI 1.016-1.554, P = 0.035). Null results were noted in the subgroup analysis by histological type under different genetic models. CONCLUSIONS Our results suggest that the CYP1B1 Leu432Val polymorphism acts as a risk factor for the carcinogenesis of lung cancer.
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Affiliation(s)
- Xianjun Lao
- Department of Clinical Laboratory, First Affiliated Hospital of Guangxi Medical University, Nanning, 530021, Guangxi, China
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12
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Blackman E, Campbell J, Bowen C, Delmoor E, Jean-Louis G, Noumbissi R, O'Garro Y, Richards-Waritay O, Straughter S, Tolbert V, Wilson B, Ragin C. The 4th Bi-annual international African-Caribbean Cancer Consortium conference: building capacity to address cancer health disparities in populations of African descent. Infect Agent Cancer 2014; 9:35. [PMID: 26422007 PMCID: PMC4221714 DOI: 10.1186/1750-9378-9-35] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 09/30/2014] [Indexed: 01/22/2023] Open
Abstract
This is a brief summary of the 4th International Meeting of the African-Caribbean Cancer Consortium (AC3), organized and sponsored by Fox Chase Cancer Center (FCCC), and held on July 21–22, 2012 at the Lincoln University Graduate Center, Lincoln Plaza, Philadelphia, Pennsylvania. AC3 investigators gathered in Philadelphia, PA to present the results of our ongoing collaborative research efforts throughout the African Diaspora. The general theme addressed cancer health disparities and presentations represented all cancer types. However, there was particular emphasis on women’s cancers, related to human papillomavirus (HPV) and human immunodeficiency virus (HIV) infections.
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Affiliation(s)
- Elizabeth Blackman
- Cancer Prevention and Control, Fox Chase Cancer Center, Temple University Health System, 333 Cottman Avenuue, Philadelphia, PA 19111 USA
| | - Jasmine Campbell
- Cancer Prevention and Control, Fox Chase Cancer Center, Temple University Health System, 333 Cottman Avenuue, Philadelphia, PA 19111 USA
| | - Carlene Bowen
- Thomas Jefferson University Hospital, Philadelphia, PA USA
| | - Ernestine Delmoor
- National Black Leadership Initiative in Cancer - Philadelphia Chapter, Philadelphia, PA USA
| | | | | | - Yvonne O'Garro
- St. Vincent and the Grenadines Organization of Pennsylvania, Philadelphia, PA USA
| | | | | | - Vera Tolbert
- The Coalition of African Communities (AFRICOM), Philadelphia, PA USA
| | - Barbara Wilson
- Caribbean Festival & Cultural Organization of Pennsylvania, Philadelphia, PA USA
| | - Camille Ragin
- Cancer Prevention and Control, Fox Chase Cancer Center, Temple University Health System, 333 Cottman Avenuue, Philadelphia, PA 19111 USA ; Department of Public Health, Temple University, Philadelphia, PA USA
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13
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Taioli E, Sears V, Watson A, Flores-Obando RE, Jackson MD, Ukoli FA, de Syllos Cólus IM, Fernandez P, McFarlane-Anderson N, Ostrander EA, Rodrigues IS, Stanford JL, Taylor JA, Tulloch-Reid M, Ragin CCR. Polymorphisms in CYP17 and CYP3A4 and prostate cancer in men of African descent. Prostate 2013; 73:668-76. [PMID: 23129512 PMCID: PMC3881417 DOI: 10.1002/pros.22612] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Accepted: 10/01/2012] [Indexed: 11/11/2022]
Abstract
BACKGROUND A meta and pooled analysis of published and unpublished case-control studies was performed to evaluate the association of CYP17 (rs743572) and CYP3A4 (rs2740574) polymorphisms and prostate cancer (PCa) in men from the USA, Caribbean, and Africa. METHODS Eight publications (seven studies) and two unpublished studies for CYP17 included 1,580 subjects (559 cases and 1,021 controls) and eleven publications and three unpublished studies for CYP3A4 included 3,400 subjects (1,429 cases and 1,971 controls). RESULTS Overall, the CYP17 heterozygous and homozygous variants were not associated with PCa, but they confer a 60% increased risk of PCa in a sub-group analysis restricted to African-American men (T/C + C/C, OR: 1.6, 95% CI: 1.1-2.4). No associations were observed for CYP3A4, overall and in stratified analyses for African-Americans and Africans. The pooled analysis suggests that after adjusting for study, age, PSA, and family history of PCa, CYP17 was associated with PCa for men of African ancestry (Adjusted OR: 3.5, 95% CI: 1.2-10.0). CONCLUSIONS Our findings suggest that genetic factors involved in the androgen pathway play a role in PCa risk among men of African ancestry.
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Affiliation(s)
- Emanuela Taioli
- North Shore Long Island Jewish Health System, The Feinstein Institute for Medical Research, Manhasset, New York 11030, USA.
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14
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Stingone JA, Funkhouser WK, Weissler MC, Bell ME, Olshan AF. Racial differences in the relationship between tobacco, alcohol, and squamous cell carcinoma of the head and neck. Cancer Causes Control 2013; 24:649-64. [PMID: 22674225 PMCID: PMC3698868 DOI: 10.1007/s10552-012-9999-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2011] [Accepted: 05/16/2012] [Indexed: 12/12/2022]
Abstract
PURPOSE Tobacco and alcohol use are well-known risk factors for squamous cell carcinoma of the head and neck (SCCHN), but there has been little examination of disparities in SCCHN and racial patterns of tobacco and alcohol use, especially for African-Americans. The Carolina Head and Neck Cancer Study, a population-based case-control study, was utilized to determine whether relationships between tobacco and alcohol use and SCCHN differed by race. METHODS Using a rapid case ascertainment system, cases were recruited from 46 contiguous counties in North Carolina from 2002 to 2006. Controls, selected from motor vehicle records, were frequency-matched to cases on age, sex, and race. This analysis was based on 989 white and 351 African-American cases and 1,114 white and 264 African-American controls. Analyses were performed using unconditional logistic regression, adjusting for age, sex, race, education, and fruit and vegetable consumption. RESULTS The association between SCCHN and ever tobacco use among African-Americans (odds ratio (OR), 9.68; 95 % confidence interval (CI), 4.70, 19.9) was much greater than that observed in whites (OR, 1.94; 95 % CI, 1.51, 2.50). Smaller differences were observed when examining ever alcohol use (African-Americans: OR, 3.71; CI, 1.65, 8.30, and Whites: OR, 1.31: CI 0.96, 1.78). African-Americans consistently had greater effect measure estimates when examining common levels of duration and intensity metrics of tobacco and alcohol use, both independently and jointly. No racial differences in the effects of environmental (passive) tobacco smoke were observed. CONCLUSIONS These findings suggest racial differences in SCCHN are not solely explained by differences in consumption patterns, and tobacco and alcohol may have greater impact in African-Americans.
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Affiliation(s)
- Jeanette A. Stingone
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
| | - William K. Funkhouser
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina, Chapel Hill, North Carolina
| | - Mark C. Weissler
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Mary E. Bell
- Lineberger Comprehensive Cancer Center, School of Medicine, University of North Carolina, Chapel Hill, North Carolina
| | - Andrew F. Olshan
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina
- Department of Pathology and Laboratory Medicine, University of North Carolina, Chapel Hill, North Carolina
- Lineberger Comprehensive Cancer Center, School of Medicine, University of North Carolina, Chapel Hill, North Carolina
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15
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The interaction between smoking and GSTM1 variant on lung cancer in the Chinese population. Tumour Biol 2012; 34:395-401. [PMID: 23090633 DOI: 10.1007/s13277-012-0562-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 10/12/2012] [Indexed: 12/22/2022] Open
Abstract
Smoking and the deletion of GSTM1 variant are two risk factors of lung cancer. This meta-analysis was performed to examine the GSTM1-smoking interaction on lung cancer in the Chinese population. PubMed, Web of Science, and other Chinese databases were searched to include all the related studies. The number of subjects with two GSTM1 genotypes across different smoking status was extracted. The pooled odds ratios (ORs) with 95 % confidence intervals (CIs) were calculated using fixed- or random-effect model. A total of 4,345 cases and 5,031 controls from 30 studies were included in the meta-analysis. Compared with nonsmokers having power GSTM1, the pooled ORs with 95 % CIs for lung cancer in smokers with power GSTM1, in nonsmokers with null GSTM1, and in smokers with null GSTM1 were 2.24 (1.82-2.76), 1.48 (1.23-1.79), and 4.18 (3.38-5.16), respectively. This meta-analysis showed that there was an interaction between the GSTM1 and smoking on the risk of lung cancer in the Chinese. Further studies are needed to examine the interactions between other environmental factors and GSTM1 on the risk of lung cancer.
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16
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Koochekpour S, Majumdar S, Azabdaftari G, Attwood K, Scioneaux R, Subramani D, Manhardt C, Lorusso GD, Willard SS, Thompson H, Shourideh M, Rezaei K, Sartor O, Mohler JL, Vessella RL. Serum glutamate levels correlate with Gleason score and glutamate blockade decreases proliferation, migration, and invasion and induces apoptosis in prostate cancer cells. Clin Cancer Res 2012; 18:5888-901. [PMID: 23072969 DOI: 10.1158/1078-0432.ccr-12-1308] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
PURPOSE During glutaminolysis, glutamine is catabolized to glutamate and incorporated into citric acid cycle and lipogenesis. Serum glutamate levels were measured in patients with primary prostate cancer or metastatic castrate-resistant prostate cancer (mCRPCa) to establish clinical relevance. The effect of glutamate deprivation or blockade by metabotropic glutamate receptor 1 (GRM1) antagonists was investigated on prostate cancer cells' growth, migration, and invasion to establish biologic relevance. EXPERIMENTAL DESIGN Serum glutamate levels were measured in normal men (n = 60) and patients with primary prostate cancer (n = 197) or mCRPCa (n = 109). GRM1 expression in prostatic tissues was examined using immunohistochemistry (IHC). Cell growth, migration, and invasion were determined using cell cytotoxicity and modified Boyden chamber assays, respectively. Apoptosis was detected using immunoblotting against cleaved caspases, PARP, and γ-H2AX. RESULTS Univariate and multivariate analyses showed significantly higher serum glutamate levels in Gleason score ≥ 8 than in the Gleason score ≤ 7 and in African Americans than in the Caucasian Americans. African Americans with mCRPCa had significantly higher serum glutamate levels than those with primary prostate cancer or benign prostate. However, in Caucasian Americans, serum glutamate levels were similar in normal research subjects and patients with mCRPC. IHC showed weak or no expression of GRM1 in luminal acinar epithelial cells of normal or hyperplastic glands but high expression in primary or metastatic prostate cancer tissues. Glutamate deprivation or blockade decreased prostate cancer cells' proliferation, migration, and invasion and led to apoptotic cell death. CONCLUSIONS Glutamate expression is mechanistically associated with and may provide a biomarker of prostate cancer aggressiveness.
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Affiliation(s)
- Shahriar Koochekpour
- Department of Cancer Genetics, Center for Genetics and Pharmacology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA.
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17
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Beltrán-Ramírez O, Pérez RM, Sierra-Santoyo A, Villa-Treviño S. Cancer Prevention Mediated by Caffeic Acid Phenethyl Ester Involves Cyp2b1/2 Modulation in Hepatocarcinogenesis. Toxicol Pathol 2012; 40:466-72. [DOI: 10.1177/0192623311431947] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Olga Beltrán-Ramírez
- Dirección de Investigación, Hospital Juárez de México, México City, Distrito Federal, México
| | - Roberto Macías Pérez
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV), San Pedro Zacatenco, México
| | - Adolfo Sierra-Santoyo
- Departamento de Toxicología, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV). San Pedro Zacatenco, México
| | - Saúl Villa-Treviño
- Departamento de Biología Celular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV), San Pedro Zacatenco, México
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18
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Wang F, Zou YF, Feng XL, Su H, Huang F. CYP17 gene polymorphisms and prostate cancer risk: a meta-analysis based on 38 independent studies. Prostate 2011; 71:1167-77. [PMID: 21656827 DOI: 10.1002/pros.21332] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2010] [Accepted: 12/03/2010] [Indexed: 11/06/2022]
Abstract
BACKGROUND The results of recent published studies focusing on CYP17 polymorphisms in prostate cancer (PCa) susceptibility are often conflicting. We performed a meta-analysis based on 38 independent studies to evaluate the association. METHODS Data were collected from the following electronic databases: PubMed, Excerpta Medica Database, and Chinese Biomedical Literature Database, with the last report up to September 2010. Meta-analysis was conducted in a fixed/random effect model. RESULTS Thirty-eight independent studies including 34,782 cases and 38,626 controls on the association of CYP17 gene polymorphisms with PCa risk in different ethnic groups were identified. The meta-analysis was performed for five polymorphisms: rs743572 (A1/A2, 38 studies), rs6162 (C/T, 3 studies), rs619824 (C/A, 4 studies), rs2486758 (T/C, 4 studies), and rs10883782 (A/G, 4 studies). When all groups were pooled, we did not detect the association of rs743572 polymorphism with PCa risk. In the subgroup analysis, a significant association of rs743572 polymorphism and PCa was found in Black population (A2/A2 vs. A1/A1 + A2/A1: OR = 1.70, 95% CI = 1.08-2.69, P = 0.02), but not in Caucasian or Asian population. For other polymorphisms, we found that rs619824 polymorphism was associated with a significant decreased risk of PCa (A vs. C: OR = 0.95, 95% CI = 0.92-0.99, P = 0.01), and rs2486758 polymorphism was associated with a significant increased risk of PCa (C vs. T: OR = 1.07, 95% CI = 1.03-1.12, P = 0.002). CONCLUSION This meta-analysis suggests that rs743572 polymorphism is associated with PCa risk in Black population, but not in Caucasian or Asian population. Moreover, our study suggests that rs619824 and rs2486758 polymorphisms are associated with PCa risk.
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Affiliation(s)
- Fang Wang
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
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19
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Taioli E, Flores-Obando RE, Agalliu I, Blanchet P, Bunker CH, Ferrell RE, Jackson M, Kidd LCR, Kolb S, Lavender NA, McFarlane-Anderson N, Morrison SS, Multigner L, Ostrande EA, Park JY, Patrick AL, Rebbeck TR, Romana M, Stanford JL, Ukoli F, Vancleave TT, Zeigler-Johnson CM, Mutetwa B, Ragin C. Multi-institutional prostate cancer study of genetic susceptibility in populations of African descent. Carcinogenesis 2011; 32:1361-5. [PMID: 21705483 DOI: 10.1093/carcin/bgr119] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Prostate cancer disparities have been reported in men of African descent who show the highest incidence, mortality, compared with other ethnic groups. Few studies have explored the genetic and environmental factors for prostate cancer in men of African ancestry. The glutathione-S-transferases family conjugates carcinogens before their excretion and is expressed in prostate tissue. This study addressed the role of GSTM1 and GSTT1 deletions on prostate cancer risk in populations of African descent. This multi-institutional case-control study gathered data from the Genetic Susceptibility to Environmental Carcinogens (GSEC) database, the African-Caribbean Cancer Consortium (AC3) and Men of African Descent and Carcinoma of the Prostate Consortium (MADCaP). The analysis included 10 studies (1715 cases and 2363 controls), five in African-Americans, three in African-Caribbean and two in African men. Both the GSTM1 and the GSTT1 deletions showed significant inverse associations with prostate cancer [odds ratio (OR): 0.90, 95% confidence interval (CI) 0.83-0.97 and OR 0.88, 95% CI: 0.82-0.96, respectively]. The association was restricted to Caribbean and African populations. A significant positive association was observed between GSTM1 deletion and prostate cancer in smokers in African-American studies (OR: 1.28, 95% CI: 1.01-1.56), whereas a reduced risk was observed in never-smokers (OR: 0.66, 95% CI: 0.46-0.95). The risk of prostate cancer increased across quartiles of pack-years among subjects carrying the deletion of GSTM1 but not among subjects carrying a functional GSTM1. Gene-environment interaction between smoking and GSTM1 may be involved in the etiology of prostate cancer in populations of African descent.
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Affiliation(s)
- Emanuela Taioli
- Institute of Translational Epidemiology, Mount Sinai School of Medicine, New York, NY, USA.
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20
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Li Y, Yang H, Cao J. Association between alcohol consumption and cancers in the Chinese population--a systematic review and meta-analysis. PLoS One 2011; 6:e18776. [PMID: 21526212 PMCID: PMC3078147 DOI: 10.1371/journal.pone.0018776] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Accepted: 03/18/2011] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Alcohol consumption is increasing worldwide and is associated with numerous cancers. This systematic review examined the role of alcohol in the incidence of cancer in the Chinese population. METHODS Medline/PubMed, EMBASE, CNKI and VIP were searched to identify relevant studies. Cohort and case-control studies on the effect of alcohol use on cancers in Chinese were included. Study quality was evaluated using the Newcastle-Ottawa Scale. Data were independently abstracted by two reviewers. Odds ratios (OR) or relative risks (RR) were pooled using RevMan 5.0. Heterogeneity was evaluated using the Q test and I-squared statistic. P<.01 was considered statistically significant. RESULTS Pooled results from cohort studies indicated that alcohol consumption was not associated with gastric cancer, esophageal cancers (EC) or lung cancer. Meta-analysis of case-control studies showed that alcohol consumption was a significant risk factor for five cancers; the pooled ORs were 1.79 (99% CI, 1.47-2.17) EC, 1.40 (99% CI, 1.19-1.64) gastric cancer, 1.56 (99% CI, 1.16-2.09) hepatocellular carcinoma, 1.21 (99% CI, 1.00-1.46) nasopharyngeal cancer and 1.71 (99% CI, 1.20-2.44) oral cancer. Pooled ORs of the case-control studies showed that alcohol consumption was protective for female breast cancer and gallbladder cancer: OR 0.76 (99% CI, 0.60-0.97) and 0.70 (99% CI, 0.49-1.00) respectively. There was no significant correlation between alcohol consumption and lung cancer, colorectal cancer, pancreatic cancer, cancer of the ampulla of Vater, prostate cancer or extrahepatic cholangiocarcinoma. Combined results of case-control and cohort studies showed that alcohol consumption was associated with 1.78- and 1.40-fold higher risks of EC and gastric cancer but was not significantly associated with lung cancer. CONCLUSIONS Health programs focused on limiting alcohol intake may be important for cancer control in China. Further studies are needed to examine the interaction between alcohol consumption and other risk factors for cancers in Chinese and other populations.
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Affiliation(s)
- Ying Li
- Department of Social Medicine and Health Service Management, Third Military Medical University, Chongqing, China
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21
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Lawrence D, Rose A, Fagan P, Moolchan ET, Gibson JT, Backinger CL. National patterns and correlates of mentholated cigarette use in the United States. Addiction 2010; 105 Suppl 1:13-31. [PMID: 21059133 DOI: 10.1111/j.1360-0443.2010.03203.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIM To examine the patterns and correlates of mentholated cigarette smoking among adult smokers in the United States. DESIGN Cross-sectional data on adult current smokers (n = 63,193) were pooled from the 2003 and 2006/07 Tobacco Use Supplements to the Current Population Survey. MEASUREMENTS The associations between socio-demographic and smoking variables were examined with gender- and race/ethnicity-stratified multivariate logistic regression models predicting current use of mentholated cigarettes. FINDINGS Multivariate logistic regression analyses demonstrated that black smokers were 10-11 times more likely to smoke mentholated cigarettes than white smokers men: odds ratio (OR): 11.59, 99% confidence interval (CI): 9.79-13.72; women: OR: 10.12, 99% CI: 8.45-12.11). With the exception of American Indian/Aleut/Eskimo smokers, non-white smokers were significantly more likely to smoke mentholated cigarettes than were white smokers. Additional significant factors associated with mentholated cigarette smoking included being unmarried (never married: OR: 1.21, 99% CI: 1.09-1.34; divorced/separated: OR: 1.13, 99% CI: 1.03-1.23), being born in a US territory (OR: 2.01, 99% CI: 1.35-3.01), living in a non-metropolitan area (OR: 0.87, 99% CI: 0.80-0.96), being unemployed (OR: 1.24, 99% CI: 1.06-1.44) and lower levels of education. Race/ethnicity-stratified analyses showed that women were more likely than men to smoke mentholated cigarettes. Among black smokers, young adults (aged 18-24 years) were four times more likely to smoke mentholated cigarettes compared with individuals aged 65+. CONCLUSIONS Race/ethnicity, gender and age are significant correlates of mentholated cigarette smoking among current smokers. Given the importance of menthol in the cigarette market and the potential untoward health effects of this additive, continued surveillance of the prevalence and correlates of mentholated cigarette use among diverse socio-demographic groups is warranted to inform appropriate interventions.
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Affiliation(s)
- Deirdre Lawrence
- National Cancer Institute, Tobacco Control Research Branch, Behavioral Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD, USA.
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22
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Flores-Obando RE, Gollin SM, Ragin CC. Polymorphisms in DNA damage response genes and head and neck cancer risk. Biomarkers 2010; 15:379-99. [PMID: 20429839 DOI: 10.3109/13547501003797664] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
BACKGROUND Polymorphisms in DNA repair genes have been reported contributing factors in head and neck cancer risk but studies have shown conflicting results. OBJECTIVE To clarify the impact of DNA repair gene polymorphisms in head and neck cancer risk. METHOD A meta-analysis including 30 case-control studies was performed. RESULTS Marginally statistically significant association was found for XRCC1 codon 399 (for Caucasians only), XPD Asp312Asn and XRCC1 codon 194 variants and head and neck cancer. CONCLUSION Assessments of the effects of smoking, alcohol, human papillomavirus and race/ethnicity on the association between DNA repair gene polymorphisms and head and neck cancer are needed.
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Affiliation(s)
- Rafael E Flores-Obando
- Department of Epidemiology, State University of New York Downstate Medical Center, NY, USA
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23
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Johnson LA, Kanak MA, Kajdacsy-Balla A, Pestaner JP, Bagasra O. Differential zinc accumulation and expression of human zinc transporter 1 (hZIP1) in prostate glands. Methods 2010; 52:316-21. [PMID: 20705137 DOI: 10.1016/j.ymeth.2010.08.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2010] [Revised: 08/05/2010] [Accepted: 08/06/2010] [Indexed: 11/15/2022] Open
Abstract
Zinc (Zn) is essential for a very large number and variety of cellular functions but is also potentially toxic. Zn homeostasis is therefore dynamically maintained by a variety of transporters and other proteins distributed in distinct cellular and subcellular compartments. Zn transport is mediated by two major protein families: the Zip family, which mediates Zn influx, and the ZnTs which are primarily linked to Zn sequestration into intracellular compartments and are, thereby, involved in lowering cytoplasmic Zn free ion concentrations. In the prostate epithelial cell, the accumulation of high cellular zinc is a specialized function that is necessary for these cells to carry out the major physiological functions of production and secretion of prostatic fluids. The loss of Zn accumulation is the most consistent and persistent characteristic of prostate malignancy. Currently, there are no direct methods to determine the relative Zn levels in various cell types of prostate gland (i.e. stroma, glandular epithelia, acini, and muscular) and no reliable ways to compare the Zn in normal versus malignant areas of the gland. Here we report a new method to show a differential Zn staining method that correlates with various stages of prostate cancer development in situ and expression of a human Zn transporter1-hZIP1 -in situ by in situ reverse transcriptase-polymerase chain reaction hybridization (ISRTPCR) that correlate with the relative Zn levels determined by the differential Zn staining method. By utilizing these methods, we show for the first time that: (1) the relative Zn levels are very low to absent in the malignant glands, (2) normal glands show high Zn levels in both glandular epithelia as well as in stromal tissues, (3) the Zn levels begin to decrease in pre-malignant glands and precedes the development of malignancy, and (4) the expression of human Zn transporter1 (hZIP1) appears to correlate with the Zn levels in the prostate glands and may be the major Zn regulator in this organ.
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Affiliation(s)
- Leslie A Johnson
- South Carolina Center for Biotechnology, Claflin University, 400 Magniolia Street, Orangeburg, SC 29115, USA
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Said R, Terjanian T, Taioli E. Clinical characteristics and presentation of lung cancer according to race and place of birth. Future Oncol 2010; 6:1353-61. [DOI: 10.2217/fon.10.89] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
This study compares the clinical presentation and characteristics of lung cancer among white and black patients according to place of birth, and correlates these factors to outcome. All newly diagnosed lung cancers from 2005 to 2007 in three tertiary medical centers were retrospectively reviewed; 767 patients were identified, 252 of whom were black. Age, sex, family history, place of birth, smoking history, insurance status, clinical stage, histology, grade of differentiation, symptoms, circumstance of diagnosis, treatment and outcome data were retrieved from medical charts. Lung cancer was diagnosed incidentally in 28.2% of white individuals versus 12.3% in black individuals (p < 0.0001). After adjustment for other variables, black and white individuals have similar survival rates (hazard ratio: 1.3; 95% CI: 0.8–2.0). The differences in lung cancer survival could be related to access to care, environmental factors and the biology of the disease. Including place of birth in cancer outcome studies could help understanding the origin of health disparity.
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Affiliation(s)
- Rabih Said
- State University of New York, Downstate Medical Center, NY, USA
- Staten Island University Hospital, Department of Hematology/Oncology, Staten Island, NY, USA
| | - Terenig Terjanian
- Staten Island University Hospital, Department of Hematology/Oncology, Staten Island, NY, USA
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