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Yang H, Rothenberger E, Zhao T, Fan W, Kelly A, Attaya A, Fan D, Panigrahy D, Deng J. Regulation of inflammation in cancer by dietary eicosanoids. Pharmacol Ther 2023:108455. [PMID: 37257760 DOI: 10.1016/j.pharmthera.2023.108455] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/16/2023] [Accepted: 05/22/2023] [Indexed: 06/02/2023]
Abstract
BACKGROUND Cancer is a major burden of disease worldwide and increasing evidence shows that inflammation contributes to cancer development and progression. Eicosanoids are derived from dietary polyunsaturated fatty acids, such as arachidonic acid (AA), and are mainly produced by a series of enzymatic pathways that include cyclooxygenase (COX), lipoxygenase (LOX), and cytochrome P-450 epoxygenase (CYP). Eicosanoids consist of at least several hundred individual molecules and play important roles in the inflammatory response and inflammation-related cancers. SCOPE AND APPROACH Dietary sources of AA and biosynthesis of eicosanoids from AA through different metabolic pathways are summarized. The bioactivities of eicosanoids and their potential molecular mechanisms on inflammation and cancer are revealed. Additionally, current challenges and limitations in eicosanoid research on inflammation-related cancer are discussed. KEY FINDINGS AND CONCLUSIONS Dietary AA generates a large variety of eicosanoids, including prostaglandins, thromboxane A2, leukotrienes, cysteinyl leukotrienes, lipoxins, hydroxyeicosatetraenoic acids (HETEs), and epoxyeicosatrienoic acids (EETs). Eicosanoids exert different bioactivities and mechanisms involved in the inflammation and related cancer developments. A deeper understanding of eicosanoid biology may be advantageous in cancer treatment and help to define cellular targets for further therapeutic development.
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Affiliation(s)
- Haixia Yang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Eva Rothenberger
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA; Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Tong Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Wendong Fan
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Abigail Kelly
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA; Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Ahmed Attaya
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA; Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, China
| | - Dipak Panigrahy
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA; Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
| | - Jianjun Deng
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, Xi'an 710069, China; State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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2
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Al-Mahayri ZN, Patrinos GP, Wattanapokayakit S, Iemwimangsa N, Fukunaga K, Mushiroda T, Chantratita W, Ali BR. Variation in 100 relevant pharmacogenes among emiratis with insights from understudied populations. Sci Rep 2020; 10:21310. [PMID: 33277594 PMCID: PMC7718919 DOI: 10.1038/s41598-020-78231-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 11/17/2020] [Indexed: 02/08/2023] Open
Abstract
Genetic variations have an established impact on the pharmacological response. Investigating this variation resulted in a compilation of variants in "pharmacogenes". The emergence of next-generation sequencing facilitated large-scale pharmacogenomic studies and exhibited the extensive variability of pharmacogenes. Some rare and population-specific variants proved to be actionable, suggesting the significance of population pharmacogenomic research. A profound gap exists in the knowledge of pharmacogenomic variants enriched in some populations, including the United Arab Emirates (UAE). The current study aims to explore the landscape of variations in relevant pharmacogenes among healthy Emiratis. Through the resequencing of 100 pharmacogenes for 100 healthy Emiratis, we identified 1243 variants, of which 63% are rare (minor allele frequency ≤ 0.01), and 30% were unique. Filtering the variants according to Pharmacogenomics Knowledge Base (PharmGKB) annotations identified 27 diplotypes and 26 variants with an evident clinical relevance. Comparison with global data illustrated a significant deviation of allele frequencies in the UAE population. Understudied populations display a distinct allelic architecture and various rare and unique variants. We underscored pharmacogenes with the highest variation frequencies and provided investigators with a list of candidate genes for future studies. Population pharmacogenomic studies are imperative during the pursuit of global pharmacogenomics implementation.
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Affiliation(s)
- Zeina N Al-Mahayri
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al-Ain, United Arab Emirates
| | - George P Patrinos
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al-Ain, United Arab Emirates.,Department of Pharmacy, School of Health Sciences, University of Patras, University Campus, Rion, Patras, Greece.,Zayed Center for Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates
| | - Sukanya Wattanapokayakit
- Division of Genomic Medicine and Innovation Support, Department of Medical Sciences, Ministry of Public Health, Nonthaburi, Thailand
| | - Nareenart Iemwimangsa
- Center for Medical Genomics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Koya Fukunaga
- Laboratory for Pharmacogenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Taisei Mushiroda
- Laboratory for Pharmacogenomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Wasun Chantratita
- Center for Medical Genomics, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Bassam R Ali
- Department of Pathology, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al-Ain, United Arab Emirates. .,Zayed Center for Health Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates. .,Department of Genetics and Genomics, College of Medicine and Heath Sciences, United Arab Emirates University, Al-Ain, United Arab Emirates.
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3
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Luo Y, Liu JY. Pleiotropic Functions of Cytochrome P450 Monooxygenase-Derived Eicosanoids in Cancer. Front Pharmacol 2020; 11:580897. [PMID: 33192522 PMCID: PMC7658919 DOI: 10.3389/fphar.2020.580897] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/30/2020] [Indexed: 12/19/2022] Open
Abstract
Eicosanoids are a class of functionally bioactive lipid mediators derived from the metabolism of long-chain polyunsaturated fatty acids (PUFAs) mediated by multiple enzymes of three main branches, including cyclooxygenases (COXs), lipoxygenases (LOXs), and cytochrome P450s (CYPs). Recently, the role of eicosanoids derived by COXs and LOXs pathways in the control of physiological and pathological processes associated with cancer has been well documented. However, the role of CYPs-mediated eicosanoids, such as epoxyeicosatrienoic acids (EETs), epoxyoctadecenoic acids (EpOMEs), epoxyeicosatetraenoic acids (EpETEs), and epoxydocosapentaenoic acids (EDPs), as well as hydroxyeicosatetraenoic acids (HETEs), in tumorigenesis and cancer progression have not been fully elucidated yet. Here we summarized the association of polymorphisms of CYP monooxygenases with cancers and the pleiotropic functions of CYP monooxygenase-mediated eicosanoids (EETs, EpOMEs, EpETE, EDPs, and 20-HETE) in the tumorigenesis and metastasis of multiple cancers, including but not limited to colon, liver, kidney, breast and prostate cancers, which hopefully provides valuable insights into cancer therapeutics. We believe that manipulation of CYPs with or without supplement of ω-3 PUFAs to regulate eicosanoid profile is a promising strategy to prevent and/or treat cancers.
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Affiliation(s)
- Ying Luo
- Department of Clinical Laboratory, Changning Maternity and Infant Health Hospital, East China Normal University, Shanghai, China
| | - Jun-Yan Liu
- Center for Novel Target & Therapeutic Intervention, Institute of Life Sciences, Chongqing Medical University, Chongqing, China
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4
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Wongpratate M, Ishida W, Phuthong S, Natphopsuk S, Ishida T. Genetic Polymorphisms of the Human Cytochrome P450 1A1 (CYP1A1) and Cervical Cancer Susceptibility among Northeast Thai Women. Asian Pac J Cancer Prev 2020; 21:243-248. [PMID: 31983191 PMCID: PMC7294009 DOI: 10.31557/apjcp.2020.21.1.243] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Indexed: 12/19/2022] Open
Abstract
Background: CYP1A1 is an enzyme in phase I of the cytochrome P450 (CYP) superfamily, and plays a key role in detoxification of carcinogens. Host genetic predisposition in the CYP1A1 may be associated with an increased susceptibility to cervical cancer.The study aimed to evaluate four common polymorphisms of the CYP1A1 and cervical cancer susceptibility among Northeast Thai women. Methods: A case-control study was conducted involving 204 patients with squamous cell cervical cancer (SCCA) and 204 age-matched healthy controls. DNA was extracted from peripheral blood leucocytes. CYP1A1 m1, m3, and m4 genotypes were detected using PCR-RFLP, whereas the CYP1A1 m2 genotype was investigated using real-time PCR. Haplotype analysis was performed using PHASE algorithm version 2.1.1. Results: CYP1A1 m3 was monomorphic. Association between the common CYP1A1 polymorphisms, m1 and m2, and cervical cancer risk was not observed (p>0.05), nor was any association found between the m1–m2–m4 haplotype and cervical cancer risk (p>0.05). Interestingly, the CA genotype of CYP1A1 m4 was observed in 30.88% of the cervical cancer patients but was absent in healthy controls. Conclusion: Our results demonstrated a possible involvement of the CYP1A1 m4 polymorphism but no other common polymorphisms (viz., m1, m2, and m3) in the risk for cervical cancer.This finding may be useful when screening for risk of cervical cancer among Northeast Thai women.
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Affiliation(s)
- Mayuree Wongpratate
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Wannapa Ishida
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sophida Phuthong
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sitakan Natphopsuk
- Chulabhorn International College of Medicine, Thammasat University, Thailand
| | - Takafumi Ishida
- Unit of Human Biology and Genetics, Department of Biological Sciences, Graduate School of Science, University of Tokyo, Tokyo, Japan
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Zara-Lopes T, Galbiatti-Dias ALS, Castanhole-Nunes MMU, Padovani-Júnior JA, Maniglia JV, Pavarino EC, Goloni-Bertollo EM. Polymorphisms in MTHFR, MTR, RFC1 and CßS genes involved in folate metabolism and thyroid cancer: a case-control study. Arch Med Sci 2019; 15:522-530. [PMID: 30899306 PMCID: PMC6425207 DOI: 10.5114/aoms.2018.73091] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 04/15/2017] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Polymorphisms in genes coding enzymes involved in folate metabolism may cause alterations in this metabolic pathway and contribute to carcinogenesis, because folate is essential for DNA synthesis, methylation and repair. The objective of this study was to investigate the association of MTHFR 677C>T (rs1801133), MTR 2756A>G (rs1805087), RFC1 80A>G (rs1051266) and CßS 844ins(68) (no rs#) polymorphisms and thyroid cancer development. The association of these polymorphisms with demographic risk factors and clinical histopathological parameters was also evaluated. MATERIAL AND METHODS The study is a case-control analysis with a total of 462 individuals (151 patients and 311 controls). Polymerase chain reaction-restriction fragment length polymorphism technique was used for genotyping. The χ2 and multiple logistic regression were utilized for statistical analysis. RESULTS The polymorphisms analysis revealed an association between the MTHFR 677C>T polymorphism (OR = 2.87, 95% CI: 1.50-5.48, p < 0.01, codominant model), (OR = 1.76, 95% CI: 1.18-2.64, p < 0.01, dominant model), (OR = 2.37, 95% CI: 1.28-4.39, p < 0.01, recessive model) and thyroid cancer. RFC1 80A>G polymorphism also was associated with thyroid cancer under recessive mode of inheritance (OR = 1.55; 95% CI: 1.02-2.38; p = 0.04); however, this polymorphism showed Hardy-Weinberg disequilibrium in the control group (χ2 = 24.71, p < 0.001). Furthermore, alcohol (OR = 1.56, 95% CI: 1.36-1.89, p < 0.01) and tobacco consumption (OR = 1.97, 95% CI: 1.28-3.04, p < 0.01) were associated with increased risk for thyroid cancer. The MTR 2756A>G polymorphism showed an association with tumor extent (OR = 2.69, 95% CI: 1.27-5.71, p < 0.01) and aggressiveness (OR = 4.51, 95% CI: 1.67-12.1, p < 0.01). CONCLUSIONS MTHFR 677C>T is significantly associated with increased risk for thyroid cancer and MTR 2756A>G is associated with tumor extent and aggressiveness. In addition, alcohol and tobacco consumption were associated with increased risk of thyroid cancer. These results may contribute to a better prognosis for thyroid cancer.
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Affiliation(s)
- Tairine Zara-Lopes
- Genetics and Molecular Biology Research Unit – UPGEM, Molecular Biology Department, São José do Rio Preto Medical School – FAMERP, São Paulo, Brazil
| | - Ana Lívia Silva Galbiatti-Dias
- Genetics and Molecular Biology Research Unit – UPGEM, Molecular Biology Department, São José do Rio Preto Medical School – FAMERP, São Paulo, Brazil
| | - Márcia M. Urbanin Castanhole-Nunes
- Genetics and Molecular Biology Research Unit – UPGEM, Molecular Biology Department, São José do Rio Preto Medical School – FAMERP, São Paulo, Brazil
| | - João Armando Padovani-Júnior
- Otorhinolaryngology and Head and Neck Surgery Department, São José do Rio Preto Medical School – FAMERP, São Paulo, Brazil
| | - José Victor Maniglia
- Otorhinolaryngology and Head and Neck Surgery Department, São José do Rio Preto Medical School – FAMERP, São Paulo, Brazil
| | - Erika Cristina Pavarino
- Genetics and Molecular Biology Research Unit – UPGEM, Molecular Biology Department, São José do Rio Preto Medical School – FAMERP, São Paulo, Brazil
| | - Eny Maria Goloni-Bertollo
- Genetics and Molecular Biology Research Unit – UPGEM, Molecular Biology Department, São José do Rio Preto Medical School – FAMERP, São Paulo, Brazil
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Ding F, Li JP, Zhang Y, Qi GH, Song ZC, Yu YH. Comprehensive Analysis of the Association Between the rs1138272 Polymorphism of the GSTP1 Gene and Cancer Susceptibility. Front Physiol 2019; 9:1897. [PMID: 30740061 PMCID: PMC6355699 DOI: 10.3389/fphys.2018.01897] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 12/18/2018] [Indexed: 12/26/2022] Open
Abstract
Background: We obtained conflicting results regarding the relationship between the genetic role of the rs1138272 C/T polymorphism of the GSTP1 (Glutathione S-Transferase pi) gene and the risk of various cancers. Methods: Using the presently available data, a meta-analysis was conducted to comprehensively evaluate the genetic relationship between the GSTP1 rs1138272 polymorphism and cancer susceptibility. Results: A total of 43 studies including 15,688 cases and 17,143 controls were recruited into our quantitative synthesis. In the overall population, we observed an increased risk of overall cancer cases, compared with unrelated controls, in the genetic models of allele T vs. allele C (P-association = 0.007, OR = 1.17), carrier T vs. carrier C (P-association = 0.035, OR = 1.11), TT vs. CC (P-association = 0.002, OR = 1.45), TT vs. CC+CT (P-association = 0.009, OR = 1.42), and CT+TT vs. CC (P-association = 0.027, OR = 1.13). We detected similar positive results within the Asian population. Additionally, there was a significant increase in the incidence of cancer for Africans under all genetic models (all P-association < 0.05, OR > 1). When targeting the Caucasian population, we detected a positive association with the TT vs. CC and TT vs. CC+CT models in the “Colorectal cancer” (P-association < 0.05, OR < 1) and “Head and neck cancer” (P-association < 0.05, OR > 1) subgroups. For the “Lung cancer” subgroup, we observed a slightly increased risk in Caucasians under the models of allele T vs. allele C, carrier T vs. carrier C, CT vs. CC, and CT+TT vs. CC (P-association < 0.05, OR > 1). Conclusion: The TT genotype of the GSTP1 rs1138272 polymorphism is likely related to the susceptibility to overall cancer in the Asian and African populations and, specifically, “Colorectal” and “Head and neck” cancers in the Caucasian population. In addition, the CT genotype of the GSTP1 rs1138272 polymorphism may be linked to the risk of lung cancer in Caucasians. Additional evidence is required to confirm this conclusion.
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Affiliation(s)
- Fei Ding
- Department of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong University, Jinan, China.,Second Department of Oncology, The First Hospital of Zibo, Zibo, China
| | - Jin-Ping Li
- Department of Public Health, The First Hospital of Zibo, Zibo, China
| | - Yong Zhang
- Department of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong University, Jinan, China.,Shandong Academy of Medical Sciences, Jinan, China
| | - Guang-Hui Qi
- Department of Urology Surgery, The First Hospital of Zibo, Zibo, China
| | - Zhi-Chao Song
- Department of Anorectal Surgery, The First Hospital of Zibo, Zibo, China
| | - Yong-Hua Yu
- Department of Radiation Oncology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong University, Jinan, China.,Shandong Academy of Medical Sciences, Jinan, China
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7
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Nettore IC, Colao A, Macchia PE. Nutritional and Environmental Factors in Thyroid Carcinogenesis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15081735. [PMID: 30104523 PMCID: PMC6121258 DOI: 10.3390/ijerph15081735] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/05/2018] [Accepted: 08/05/2018] [Indexed: 02/06/2023]
Abstract
Several epidemiological studies suggest an increased incidence of thyroid carcinoma (TC) in recent years, especially for the papillary histotype (PTC), suggesting that specific carcinogens might promote molecular abnormalities that are typical of PTC. The increased incidence is probably attributed to more intensive and sensitive diagnostic procedures, even if recent data suggest that various toxic elements could explain the phenomenon. Ionizing radiation exposure represents the most accepted risk factor for differentiated thyroid cancer that includes both the follicular and papillary histotypes. In this review, we examined the other environmental carcinogens that play a role in TC, such as eating habits, living in volcanic areas, and xenobiotic elements. Among eating habits, iodine intake represents one of the more discussed elements, because its deficiency is associated with follicular thyroid carcinomas (FTCs), while its progressive increment seems to be responsible for PTC. The gas, ash, and lava emissions of volcanoes are composed of various toxic compounds that pollute ground water, vegetables, and animals, contaminating humans via the food chain. Finally, the risk of developing PTC has also been associated with exposure of the population to xenobiotics in the environment or in the home. Their carcinogenic effects are probably caused by their accumulation, but additional studies are necessary to better understand the mechanisms of action.
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Affiliation(s)
| | - Annamaria Colao
- Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli Federico II, 80138 Napoli NA, Italy.
| | - Paolo Emidio Macchia
- Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli Federico II, 80138 Napoli NA, Italy.
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8
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Docea AO, Vassilopoulou L, Fragou D, Arsene AL, Fenga C, Kovatsi L, Petrakis D, Rakitskii VN, Nosyrev AE, Izotov BN, Golokhvast KS, Zakharenko AM, Vakis A, Tsitsimpikou C, Drakoulis N. CYP polymorphisms and pathological conditions related to chronic exposure to organochlorine pesticides. Toxicol Rep 2017; 4:335-341. [PMID: 28959657 PMCID: PMC5615117 DOI: 10.1016/j.toxrep.2017.05.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/11/2017] [Accepted: 05/25/2017] [Indexed: 01/08/2023] Open
Abstract
Organochlorine compounds (OCs) are persistent organic pollutants acting as endocrine disruptors. Exposure to OCs is a risk factor for several severe pathologies. Specific CYP polymorphisms could affect the clinical impact of OCs exposure.
The association between genetic variations in the cytochrome P450 (CYP) family genes and pathological conditions related to long-term exposure to organochlorine compounds (OCs) deserves further elucidation. OCs are persistent organic pollutants with bioaccumulative and lipophilic characteristics. They can act as endocrine disruptors and perturb cellular mechanisms. Prolonged exposure to OCs has been associated with different pathological manifestations. CYP genes are responsible for transcribing enzymes essential in xenobiotic metabolism. Therefore, polymorphisms in these genetic sequences a. alter the metabolic pathways, b. induce false cellular responses, and c. may provoke pathological conditions. The main aim of this review is to define the interaction between parameters a, b and c at a mechanistic/molecular level, with references in clinical cases.
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Key Words
- ARNT, AhR nuclear translocator
- AhR, aryl hydrocarbon receptor
- CYP450, cytochrome P450
- Cytochrome P450
- DDE, dichlorodiphenyldichloroethylene
- DDT, dichlorodiphenyltrichloroethane
- Environmental pollutants
- GST, glutathione-S-transferase
- Genetic polymorphisms
- HCB, hexachlorobenzene
- HCH, hexachlorocyclohexane
- HPTE, hydroxychlor
- MXC, methoxychlor
- OBP, organochlorine by-product
- OC, organochlorine compound
- Organochlorine compounds
- PAA, phenoxyacetic acid
- PCB, polychlorinated biphenyl
- PCDD, polychlorinated dibenzodioxins
- PCDF, polychlorinated dibenzofurans
- POP, persistent organic pollutant
- Pathogenesis
- ROS, reactive oxygen species
- SNP, single nucleotide polymorphism
- TCDD, tetrachlorodibenzodioxin
- VCM, vinyl chloride monomer
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Affiliation(s)
- Anca Oana Docea
- Department of Toxicology, University of Medicine and Pharmacy, Faculty of Pharmacy, 2 Petru Rares, 200349, Craiova, Romania
| | - Loukia Vassilopoulou
- Department of Toxicology and Forensic Sciences, Medical School, University of Crete, Heraklion, Greece
| | - Domniki Fragou
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Greece
| | - Andreea Letitia Arsene
- Department of Microbiology, Carol Davila University of Medicine and Pharmacy, 020021 Bucharest, Romania
| | - Concettina Fenga
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging - Occupational Medicine Section - University of Messina, 98125 Messina, Italy
| | - Leda Kovatsi
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Greece
| | | | - Valerii N Rakitskii
- Federal Scientific Center of Hygiene, F.F. Erisman, Moscow, Russian Federation
| | - Alexander E Nosyrev
- Central Chemical Laboratory of Toxicology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Boris N Izotov
- Central Chemical Laboratory of Toxicology, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Kirill S Golokhvast
- Scientific Educational Center of Nanotechnology, Far Eastern Federal University, Vladivostok, Russian Federation
| | - Alexander M Zakharenko
- Scientific Educational Center of Nanotechnology, Far Eastern Federal University, Vladivostok, Russian Federation
| | - Antonis Vakis
- Department of Neurosurgery, University of Crete, Medical School, Heraklion University Hospital, Voutes, 71 021 Heraklion, Crete, Greece
| | - Christina Tsitsimpikou
- Department of Dangerous Substances, Mixtures and Articles, Directorate of Energy, Industrial and Chemical Products, General Chemical State Laboratory of Greece, Athens, Greece
| | - Nikolaos Drakoulis
- Research Group of Clinical Pharmacology and Pharmacogenomics, Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Greece
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9
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Abstract
In first part of this study, a systematic review was designed to explore the involvement of CYP1A1 and GSTP1 genes in breast cancerogenesis. Based on systematic review, we designed a study to screen CYP1A1 and GSTP1 genes for mutation and their possible association with breast carcinogenesis. A total of 400 individuals were collected and analyzed by PCR-SSCP. After sequence analysis of coding region of CYP1A1 we identified eleven mutations in different exons of respective gene. Among these eleven mutations, ~3 folds increased breast cancer risk was found associated with Asp82Glu mutation (OR 2.99; 95% CI 1.26-7.09), with Ser83Thr mutation (OR 2.99; 95% CI 1.26-7.09) and with Glu86Ala mutation (OR 3.18; 95% CI 1.27-7.93) in cancer patients compared to controls. Furthermore, ~4 folds increase in breast cancer risk was found associated with Asp347Glu, Phe398Tyr and 5178delT mutations (OR 3.92; 95% CI 1.35-11.3) in patients compared to controls. The sequence analysis of GSTP1 resulted in identification of total five mutations. Among these five mutations, ~3 folds increase in breast cancer risk was observed associated with 1860G>A mutation, with 1861-1876delCAGCCCTCTGGAGTGG mutation (OR 2.70; 95% CI 1.10-6.62) and with 1861C>A mutation (OR 2.97; 95% CI 1.01-8.45) in cancer patients compared to controls. Furthermore, ~5 folds increase in breast cancer risk was associated with 1883G>T mutation (OR 4.75; 95% CI 1.46-15.3) and ~6 folds increase in breast cancer risk was found associated with Iso105Val mutation (OR 6.43; 95% CI 1.41-29.3) in cancer patients compared to controls. Our finding, based on systematic review and experimental data suggest that the polymorphic CYP1A1 and GSTP1 genes may contribute to risk of developing breast cancer.
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10
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García-González I, Mendoza-Alcocer R, Pérez-Mendoza GJ, Rubí-Castellanos R, González-Herrera L. Distribution of genetic variants of oxidative stress metabolism genes: Paraoxonase 1 (PON1) and Glutathione S-transferase (GSTM1/GSTT1) in a population from Southeastern Mexico. Ann Hum Biol 2016; 43:554-562. [PMID: 26620773 DOI: 10.3109/03014460.2015.1126353] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Paraoxonase 1 (PON1) and glutathione S-transferases (GSTs) are involved in the biotransformation of xenobiotics. Variation in the enzyme concentration and activity suggests individual differences for the degree of protection against oxidative stress. AIM This study analysed the distribution of SNPs Q192R, L55M (PON1) and variants in GSTM1 and GSTT1 genes in a population from Southeastern Mexico. SUBJECTS AND METHODS One hundred and fifty-one Mexican Mestizo healthy volunteers were included. PON1 polymorphisms were determined by Taqman allele discrimination real time-PCR, whereas GSTM1 and GSTT1 genes were determined with a multiplex PCR-based method. RESULTS All genotypes were in Hardy-Weinberg equilibrium, except for GSTM1. The genotypic distributions of Q192R and L55M were 22% QQ, 48% QR, 30% RR, 62% LL, 34% LM and 4% MM, respectively, whereas the allele frequencies were 0.46 (Q), 0.54 (R), 0.79 (L) and 0.21 (M). The most frequent haplotype was R/L (46.7%). It was found that 31% and 9% of the individuals had the GSTM1 and GSTT1 null genotype, respectively. The frequency of the combined null genotype GSTM1*0/GSTT1*0 was 4.64%. CONCLUSION The results showed that the frequencies of polymorphisms of PON1, GSTM1 and GSTT1 in the Yucatán population differ to those observed in other ethnic groups and provide useful data for epidemiological studies.
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Affiliation(s)
- I García-González
- a Laboratorio de Genética , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán . Mérida, Yucatán , Mexico and
| | - R Mendoza-Alcocer
- b Centro Estatal de la Transfusión Sanguínea, Secretaria de Salud de Yucatán , Mérida, Yucatán , Mexico
| | - G J Pérez-Mendoza
- a Laboratorio de Genética , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán . Mérida, Yucatán , Mexico and
| | - R Rubí-Castellanos
- a Laboratorio de Genética , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán . Mérida, Yucatán , Mexico and
| | - L González-Herrera
- a Laboratorio de Genética , Centro de Investigaciones Regionales 'Dr. Hideyo Noguchi', Universidad Autónoma de Yucatán . Mérida, Yucatán , Mexico and
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Krhin B, Goricar K, Gazic B, Dolzan V, Besic N. Functional polymorphisms in antioxidant genes in Hurthle cell thyroid neoplasm - an association of GPX1 polymorphism and recurrent Hurthle cell thyroid carcinoma. Radiol Oncol 2016; 50:289-96. [PMID: 27679545 PMCID: PMC5024660 DOI: 10.1515/raon-2016-0031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 05/02/2016] [Indexed: 01/21/2023] Open
Abstract
Background Hurthle cells of the thyroid gland are very rich in mitochondria and oxidative enzymes. As a high level oxidative metabolism may lead to higher level of oxidative stress and can be associated with an increased risk for cancer, we investigated whether common functional polymorphisms in antioxidant genes (SOD2, CAT, GPX, GSTP1, GSTM1 and GSTT1) are associated with the development or clinical course of Hurthle cell thyroid carcinoma (HCTC). Methods A retrospective study was performed in 139 patients treated by thyroid surgery for a Hurthle cell neoplasm. HCTC, Hurthle cell thyroid adenoma (HCTA) or Hurthle cell thyroid nodule (HCTN) were diagnosed by pathomorphology. DNA was extracted from cores of histologically confirmed normal tissue obtained from formalin-fixed paraffin-embedded specimens and genotyped for investigated polymorphisms. Logistic regression was used to compare genotype distributions between patient groups. Results HCTC, HCTA and HCTN were diagnosed in 53, 47 and 21 patients, respectively. Metastatic disease and recurrence of HCTC were diagnosed in 20 and 16 HCTC patients, respectively. Genotypes and allele frequencies of investigated polymorphisms did not deviate from Hardy-Weinberg equilibrium in patients with HCTC, HCTA and HCTN. Under the dominant genetic model we observed no differences in the genotype frequency distribution of the investigated polymorphisms when the HCTA and HCTN group was compared to the HCTC group for diagnosis of HCTC or for the presence of metastatic disease. However, GPX1 polymorphism was associated with the occurrence of recurrent disease (p = 0.040). Conclusions GPX1 polymorphism may influence the risk for recurrent disease in HCTC.
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Affiliation(s)
- Blaz Krhin
- Institute of Oncology Ljubljana, Slovenia
| | - Katja Goricar
- Pharmacogenetics Laboratory, Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Slovenia
| | | | - Vita Dolzan
- Pharmacogenetics Laboratory, Institute of Biochemistry, Faculty of Medicine, University of Ljubljana, Slovenia
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Figlioli G, Elisei R, Romei C, Melaiu O, Cipollini M, Bambi F, Chen B, Köhler A, Cristaudo A, Hemminki K, Gemignani F, Försti A, Landi S. A Comprehensive Meta-analysis of Case-Control Association Studies to Evaluate Polymorphisms Associated with the Risk of Differentiated Thyroid Carcinoma. Cancer Epidemiol Biomarkers Prev 2016; 25:700-13. [PMID: 26843521 DOI: 10.1158/1055-9965.epi-15-0652] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 01/23/2016] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Linkage analyses and association studies suggested that inherited genetic variations play a role in the development of differentiated thyroid carcinoma (DTC). METHODS We combined the results from a genome-wide association study (GWAS) performed by our group and from published studies on DTC. With a first approach, we evaluated whether a SNP published as associated with the risk of DTC could replicate in our GWAS (using FDR as adjustment for multiple comparisons). With the second approach, meta-analyses were performed between literature and GWAS when both sources suggested an association, increasing the statistical power of the analysis. RESULTS rs1799814 (CYP1A1), rs1121980 (FTO), and 3 SNPs within 9q22 (rs965513, rs7048394, and rs894673) replicated the associations described in the literature. In addition, the meta-analyses between literature and GWAS revealed 10 more SNPs within 9q22, six within FTO, two within SOD1, and single variations within HUS1, WDR3, UGT2B7, ALOX12, TICAM1, ATG16L1, HDAC4, PIK3CA, SULF1, IL11RA, VEGFA, and 1p31.3, 2q35, 8p12, and 14q13. CONCLUSION This analysis confirmed several published risk loci that could be involved in DTC predisposition. IMPACT These findings provide evidence for the role of germline variants in DTC etiology and are consistent with a polygenic model of the disease. Cancer Epidemiol Biomarkers Prev; 25(4); 700-13. ©2016 AACR.
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Affiliation(s)
- Gisella Figlioli
- Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany. Department of Biology, University of Pisa, Pisa, Italy
| | - Rossella Elisei
- Department of Endocrinology and Metabolism, University of Pisa, Pisa, Italy
| | - Cristina Romei
- Department of Endocrinology and Metabolism, University of Pisa, Pisa, Italy
| | | | | | - Franco Bambi
- Blood Centre, Azienda Ospedaliero Universitaria A. Meyer, Firenze, Italy
| | - Bowang Chen
- Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Aleksandra Köhler
- Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany. II Medizinische Klinik, Gastrologie, Onkologie und Palliativmedizin, St.Agnes-Hospital Bocholt, Bocholt, Germany
| | - Alfonso Cristaudo
- Department of Endocrinology and Metabolism, University of Pisa, Pisa, Italy
| | - Kari Hemminki
- Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany. Center for Primary Health Care Research, Clinical Research Center, Lund University, Malmö, Sweden
| | | | - Asta Försti
- Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany. Center for Primary Health Care Research, Clinical Research Center, Lund University, Malmö, Sweden.
| | - Stefano Landi
- Department of Biology, University of Pisa, Pisa, Italy.
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Zhuo X, Song J, Li D, Wu Y, Zhou Q. MTHFR C677T polymorphism interaction with heavy alcohol consumption increases head and neck carcinoma risk. Sci Rep 2015; 5:10671. [PMID: 26035704 PMCID: PMC4451849 DOI: 10.1038/srep10671] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Accepted: 04/22/2015] [Indexed: 12/19/2022] Open
Abstract
MTHFR C677T polymorphism has been indicated to be a risk factor for cancers, but its association with head and neck cancer (HNC) risk remains inconclusive. In the present study, we aimed to get a more precise estimation by performing a quantitative meta-analysis. Published papers up to Jun 2014 was searched and screened. Necessary information was rigorously extracted for data pooling and analyzing, and then, subgroup analyses on ethnicity, source of controls, sample size, tumor type, smoking and drinking status were also carried out. As a result, twenty-three case-control studies including 14298 subjects were included. The overall data failed to reveal a significant association between MTHFR C677T polymorphism and HNC risk (homozygote comparison model: OR = 1.16; 95%CI = 0.93-1.45; dominant model: OR = 1.05; 95%CI = 0.90-1.21; recessive model: OR = 1.14; 95%CI = 0.93-1.38). However, in the subgroup analysis about drinking status, increase risk was shown in the heavy drinking subgroup (TT vs CC: OR = 3.11; 95%CI = 1.52-3.02). In conclusion, the results of the present study suggest that Homozygous TT alleles of MTHFR C677T polymorphism might be a risk factor for HNC among individuals who have a heavy drinking history. Further studies are needed to get a more definitive conclusion.
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Affiliation(s)
- Xianlu Zhuo
- Department of Radiation Oncology, Chongqing Cancer Institute, Chongqing, China
| | - Jue Song
- Physical Examination Center, Affiliated Hospital of Guiyang Medical College, Guizhou, China
| | - Dairong Li
- Department of Medical Oncology, Chongqing Cancer Institute, Chongqing, China
| | - Yongzhong Wu
- Department of Radiation Oncology, Chongqing Cancer Institute, Chongqing, China
| | - Qi Zhou
- Department of Gynecologic Oncology, Chongqing Cancer Institute, Chongqing, China
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Kassogue Y, Dehbi H, Quachouh M, Quessar A, Benchekroun S, Nadifi S. Association of glutathione S-transferase (GSTM1 and GSTT1) genes with chronic myeloid leukemia. SPRINGERPLUS 2015; 4:210. [PMID: 25969820 PMCID: PMC4417468 DOI: 10.1186/s40064-015-0966-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 04/02/2015] [Indexed: 01/22/2023]
Abstract
Chronic myeloid leukemia (CML), as most of cancers results from a complex interaction between genetic or non genetic factors. Exposures to xenobiotics endogenous or exogenous associated with a reduced individual ability in detoxifying activity, constitutes a risk of developing cancer. It is known that polymorphism of glutathione S-transferases (GSTs) genes affects the detoxification of xenobiotics. Thus, we conducted a case-control study in which 92 patients (Mean age ± SD, 40.62 ± 12.7 years) with CML and 93 healthy unrelated controls (Mean age ± SD, 41.38 ± 13.4 years) have participated. GSTM1 and GSTT1 genotypes were determined by multiplex polymerase chain reaction. Logistic regression was used to assess the possible link between GSTM1 and GSTT1 null genotypes and CML as well as between combined genotypes and CML. GSTM1 null genotype frequency was slightly higher in patients than control (48.9% vs. 40.9%) but, it was not associated with CML (OR 95% CI, 1.4, 0.78-2.48; p = 0.271). Moreover, GSTT1 null genotype frequency showed a similar trend between patients and control (17.4% vs. 9.7%; OR 95% CI, 1.97, 0.82-4.71; p = 0.13). Surprisingly, GSTT1 null genotype was significantly associated with the risk of CML in males (OR 95% CI, 5, 1.25-20.1; p = 0.023). The combined GSTM1 present/GSTT1 null genotype was found to have a limited effect against the risk of CML (OR 95% CI, 0.3, 0.08-0.99; p = 0.049). Our findings have shown that GSTT1 null genotype might be a risk factor of CML in males. While, GSTT1 present genotype might be considered as protective against CML. However, further studies with a large sample size are needed to confirm our findings.
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Affiliation(s)
- Yaya Kassogue
- Genetics and Molecular Pathology Laboratory, Medical School of Casablanca, 19 Rue Tarik Ibnou Ziad, Casablanca, BP 9154 Morocco
| | - Hind Dehbi
- Genetics and Molecular Pathology Laboratory, Medical School of Casablanca, 19 Rue Tarik Ibnou Ziad, Casablanca, BP 9154 Morocco
| | - Meryem Quachouh
- Department of Onco-Hematology, Ibn Rochd University Hospital, Casablanca, Morocco
| | - Asma Quessar
- Department of Onco-Hematology, Ibn Rochd University Hospital, Casablanca, Morocco
| | - Said Benchekroun
- Department of Onco-Hematology, Ibn Rochd University Hospital, Casablanca, Morocco
| | - Sellama Nadifi
- Genetics and Molecular Pathology Laboratory, Medical School of Casablanca, 19 Rue Tarik Ibnou Ziad, Casablanca, BP 9154 Morocco
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MTHFR C677T gene polymorphism and head and neck cancer risk: a meta-analysis based on 23 publications. DISEASE MARKERS 2015; 2015:681313. [PMID: 25802478 PMCID: PMC4329770 DOI: 10.1155/2015/681313] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 01/09/2015] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Conflicting results on the association between MTHFR polymorphism and head and neck cancer (HNC) risk were reported. We therefore performed a meta-analysis to derive a more precise relationship between MTHFR C677T polymorphism and HNC risk. METHODS Three online databases of PubMed, Embase, and CNKI were researched on the associations between MTHFR C677T polymorphism and HNC risk. Twenty-three published case-control studies involving 4,955 cases and 8,805 controls were collected. Odds ratios (ORs) with 95% confidence interval (CI) were used to evaluate the relationship between MTHFR C677T polymorphism and HNC risk. Sensitivity analysis, cumulative analyses, and publication bias were conducted to validate the strength of the results. RESULTS Overall, no significant association between MTHFR C677T polymorphism and HNC risk was found in this meta-analysis (T versus C: OR = 1.04, 95% CI = 0.92-1.18; TT versus CC: OR = 1.15, 95% CI = 0.90-1.46; CT versus CC: OR = 1.00, 95% CI = 0.85-1.17; CT + TT versus CC: OR = 1.01, 95% CI = 0.87-1.18; TT versus CC + CT: OR = 1.11, 95% CI = 0.98-1.26). In the subgroup analysis by HWE, ethnicity, study design, cancer location, and negative significant associations were detected in almost all genetic models, except for few significant risks that were found in thyroid cancer. CONCLUSION This meta-analysis demonstrates that MTHFR C677T polymorphism may not be a risk factor for the developing of HNC.
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Abu-Elmagd M, Assidi M, Schulten HJ, Dallol A, Pushparaj PN, Ahmed F, Scherer SW, Al-Qahtani M. Individualized medicine enabled by genomics in Saudi Arabia. BMC Med Genomics 2015; 8 Suppl 1:S3. [PMID: 25951871 PMCID: PMC4315314 DOI: 10.1186/1755-8794-8-s1-s3] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The biomedical research sector in Saudi Arabia has recently received special attention from the government, which is currently supporting research aimed at improving the understanding and treatment of common diseases afflicting Saudi Arabian society. To build capacity for research and training, a number of centres of excellence were established in different areas of the country. Among these, is the Centre of Excellence in Genomic Medicine Research (CEGMR) at King Abdulaziz University, Jeddah, with its internationally ranked and highly productive team performing translational research in the area of individualized medicine. Here, we present a panorama of the recent trends in different areas of biomedical research in Saudi Arabia drawing from our vision of where genomics will have maximal impact in the Kingdom of Saudi Arabia. We describe advances in a number of research areas including; congenital malformations, infertility, consanguinity and pre-implantation genetic diagnosis, cancer and genomic classifications in Saudi Arabia, epigenetic explanations of idiopathic disease, and pharmacogenomics and personalized medicine. We conclude that CEGMR will continue to play a pivotal role in advances in the field of genomics and research in this area is facing a number of challenges including generating high quality control data from Saudi population and policies for using these data need to comply with the international set up.
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Affiliation(s)
- Muhammad Abu-Elmagd
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
- KACST Technology Innovation Centre in Personalized Medicine at King Abdulaziz University (CIPM), P.O. Box: 80216 Jeddah 21589, KSA
- School of Biological Sciences, University of East Anglia, Norwich, Norfolk, NR4 7TJ, UK
- Zoology Department, Faculty of Science, Minia University, Minia, P.O. Box 61519, Egypt
| | - Mourad Assidi
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
- KACST Technology Innovation Centre in Personalized Medicine at King Abdulaziz University (CIPM), P.O. Box: 80216 Jeddah 21589, KSA
| | - Hans-Juergen Schulten
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
| | - Ashraf Dallol
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
- KACST Technology Innovation Centre in Personalized Medicine at King Abdulaziz University (CIPM), P.O. Box: 80216 Jeddah 21589, KSA
| | - Peter Natesan Pushparaj
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
| | - Farid Ahmed
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
| | - Stephen W Scherer
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
- The Centre for Applied Genomics and Program in Genetics and Genome Biology, the Hospital for Sick Children, Toronto, Ontario, Canada
- McLaughlin Centre and Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Mohammed Al-Qahtani
- Centre of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, P.O. Box: 80216 Jeddah 21589, KSA
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Tadmouri GO, Sastry KS, Chouchane L. Arab gene geography: From population diversities to personalized medical genomics. Glob Cardiol Sci Pract 2014; 2014:394-408. [PMID: 25780794 PMCID: PMC4355514 DOI: 10.5339/gcsp.2014.54] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 12/11/2014] [Indexed: 12/20/2022] Open
Abstract
Genetic disorders are not equally distributed over the geography of the Arab region. While a number of disorders have a wide geographical presence encompassing 10 or more Arab countries, almost half of these disorders occur in a single Arab country or population. Nearly, one-third of the genetic disorders in Arabs result from congenital malformations and chromosomal abnormalities, which are also responsible for a significant proportion of neonatal and perinatal deaths in Arab populations. Strikingly, about two-thirds of these diseases in Arab patients follow an autosomal recessive mode of inheritance. High fertility rates together with increased consanguineous marriages, generally noticed in Arab populations, tend to increase the rates of genetic and congenital abnormalities. Many of the nearly 500 genes studied in Arab people revealed striking spectra of heterogeneity with many novel and rare mutations causing large arrays of clinical outcomes. In this review we provided an overview of Arab gene geography, and various genetic abnormalities in Arab populations, including disorders of blood, metabolic, circulatory and neoplasm, and also discussed their associated molecules or genes responsible for the cause of these disorders. Although studying Arab-specific genetic disorders resulted in a high value knowledge base, approximately 35% of genetic diseases in Arabs do not have a defined molecular etiology. This is a clear indication that comprehensive research is required in this area to understand the molecular pathologies causing diseases in Arab populations.
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Affiliation(s)
| | - Konduru S Sastry
- Laboratory of Genetic Medicine and Immunology, Weill Cornell Medical College in Qatar, Qatar Foundation, Doha, Qatar
| | - Lotfi Chouchane
- Laboratory of Genetic Medicine and Immunology, Weill Cornell Medical College in Qatar, Qatar Foundation, Doha, Qatar
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Chen Y, Wang B, Yan S, Wang YG. Significant association between MTHFR C677T polymorphism and thyroid cancer risk: evidence from a meta-analysis. Genet Test Mol Biomarkers 2014; 18:695-702. [PMID: 25007377 DOI: 10.1089/gtmb.2014.0029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Many studies were published to assess the associations of methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism with thyroid diseases, including thyroid cancer, but the results were controversial. METHODS A comprehensive search was performed in the Pubmed, Embase, and Chinese Biomedical Database (CBM) databases or published studies investigating the associations of MTHFR C677T polymorphism with thyroid diseases. Odds ratios (OR) and 95% confidence intervals (95% CI) were used to assess the possible associations. RESULTS Nine studies with a total of 2421 individuals were finally included into the meta-analysis. Meta-analysis of nine studies showed that there was no association between MTHFR C677T polymorphism and thyroid diseases (OR (T vs. C) =1.09, 95% CI 0.94-1.26, p=0.25; OR (TT vs. CC) =1.04, 95% CI 0.75-1.42, p=0.83; OR (TT vs. CC/CT) =1.13, 95% CI 0.86-1.50, p=0.37; OR (TT/CT vs. CC) =1.22, 95% CI 0.88-1.68, p=0.24). Meta-analysis of studies on thyroid cancer showed that there was an obvious association between MTHFR C677T polymorphism and increased risk of thyroid cancer in Caucasians (OR (T vs. C) =1.30, 95% CI 1.03-1.65, p=0.03; OR (TT vs. CC) =2.06, 95% CI 1.04-4.10, p=0.04; OR (TT vs. CC/CT) =2.02, 95% CI 1.02-3.92, p=0.04). There was no obvious risk of publication bias in the meta-analysis. CONCLUSION This meta-analysis suggests that there is a significant association between MTHFR C677T polymorphism and thyroid cancer risk in Caucasians.
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Affiliation(s)
- Ying Chen
- 1 Department of Endocrinology, The Affiliated Hospital of Medical College, Qingdao University , Qingdao, China
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Association between MTHFR C677T polymorphism and thyroid cancer risk: a meta-analysis. Tumour Biol 2014; 35:7707-12. [DOI: 10.1007/s13277-014-2038-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2014] [Accepted: 04/28/2014] [Indexed: 12/13/2022] Open
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Kweon SS, Shin MH, Kim HN, Kim SH, Kang HC. Polymorphisms of methylenetetrahydrofolate reductase and glutathione S-transferase are not associated with the risk of papillary thyroid cancer in Korean population. Mol Biol Rep 2014; 41:3793-9. [PMID: 24535271 DOI: 10.1007/s11033-014-3245-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Accepted: 02/07/2014] [Indexed: 01/23/2023]
Abstract
Korea has the highest incidence of thyroid cancer of any nation. We conducted a population-based, case-control study of the association between the risk of papillary thyroid cancer (PTC) in the Korean population and polymorphisms of methylenetetrahydrofolate reductase (MTHFR) C677T, glutathione S-transferase class mu (GSTM1), and glutathione S-transferase class theta (GSTT1). The study subjects consisted of 2,194 newly diagnosed PTC cases and 1,669 population-based healthy controls. Odds ratios adjusted by age, sex, body mass index, smoking, drinking, serum thyroid-stimulating hormone level, family history of thyroid cancer, and previous history of thyroid disease, with 95% confidence intervals, were estimated using logistic regression analysis. The frequencies of MTHFR 677TT genotypes, and null genotypes of GSTM1 and GSTT1 were 19.2, 56.8, and 51.4% among PTC cases and 17.4, 54.1, and 50.6% among the controls, respectively. No significant associations between PTC and TT genotypes of MTHFR C677T, null genotypes of GSTM1 and GSTT1, or double-null (GSTM1-GSTT1) genotypes were found. These findings suggest that polymorphisms of the MTHFR C677T, GSTM1 and GSTT1 genotypes do not contribute to the development of PTC susceptibility in the Korean population.
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Affiliation(s)
- Sun-Seog Kweon
- Department of Preventive Medicine, Chonnam National University Medical School, 160 Baekseok-ro, Dong-gu, Gwangju, 501-746, South Korea
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Association between the CYP1A1 T3801C polymorphism and risk of cancer: Evidence from 268 case–control studies. Gene 2014. [DOI: 10.1016/j.gene.2013.10.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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The NQO1 polymorphism C609T (Pro187Ser) and cancer susceptibility: a comprehensive meta-analysis. Br J Cancer 2013; 109:1325-37. [PMID: 23860519 PMCID: PMC3778271 DOI: 10.1038/bjc.2013.357] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2013] [Revised: 06/10/2013] [Accepted: 06/13/2013] [Indexed: 12/26/2022] Open
Abstract
Background: Evidence is increasingly emerging about multiple roles for the NAD(P)H quinone oxidoreductase 1 enzyme in cancer. The C609T (rs1800566, Pro187Ser) null polymorphism of the NQO1 gene contributes significantly to the variation in enzymatic activity across different populations. NQO1 C609T polymorphism was thoroughly investigated with respect to cancer susceptibility. The results were inconsistent partly due to low sample sizes. The aim of the present work was to perform a meta-analysis to assess association for all common cancer sites separately and in combination. Methods: Our meta-analysis involved 92 studies including 21 178 cases and 25 157 controls. Statistical analysis involved individual cancer sites and the combined cancer risk. Association was tested under different genetic models. Results: We found a statistically significant association between the variant T allele and overall cancer risk in the worldwide population (for the TT vs CC model, OR=1.18 (1.07–1.31), P=0.002, I2=36%). Stratified analysis revealed that this association was largely attributed to the Caucasian ethnicity (for the TT vs CC model, OR=1.28 (1.12–1.46), P=0.0002, I2=1%). Stratification by tumour site showed significant association for bladder cancer in the worldwide population (for the TT vs CC model, OR=1.70 (1.17–2.46), P=0.005, I2=0%), and in the Asian population (for the TT vs CC model, 1.48 (1.14–1.93), P=0.003, I2=16%). Positive association was also found for gastric cancer in the worldwide population under the dominant model (OR=1.34 (1.09–1.65), P=0.006, I2=15%). Conclusion: Our results indicate that the C609T polymorphism of the NQO1 gene is an important genetic risk factor in cancer.
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Zgheib NK, Shamseddine AA, Geryess E, Tfayli A, Bazarbachi A, Salem Z, Shamseddine A, Taher A, El-Saghir NS. Genetic polymorphisms of CYP2E1, GST, and NAT2 enzymes are not associated with risk of breast cancer in a sample of Lebanese women. Mutat Res 2013; 747-748:40-7. [PMID: 23628324 DOI: 10.1016/j.mrfmmm.2013.04.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 03/25/2013] [Accepted: 04/19/2013] [Indexed: 11/28/2022]
Abstract
Changes in the activity of drug metabolizing enzymes (DMEs) are potentially associated with cancer risk. This relationship is attributed to their involvement in the bioactivation of multiple procarcinogens or the metabolism of multiple substrates including an array of xenobiotics and environmental carcinogens. 326 Lebanese women of whom 99 were cancer free (controls) and 227 were diagnosed with breast cancer (cases) were included. Blood for DNA was collected and medical charts were reviewed. Three genotyping methods were employed including: (1) restriction fragment length polymorphism (RFLP) for CYP2E1*5B, CYP2E1*6, NAT2*5 and NAT2*6; (2) gel electrophoresis for GSTM1 and GSTT1; and (3) real-time PCR for GSTP1 Ile/Val polymorphism. We analyzed the relationship between genetic susceptibilities in selected xenobiotic metabolizing genes and breast cancer risk. Allele frequencies were fairly similar to previously reported values from neighboring populations with relevant migration routes. There were no statistically significant differences in the distribution of variant carcinogen metabolizing genes between cases and controls even after adjusting for age at diagnosis, menopausal status, smoking, and alcohol intake. Despite its limitations, this is the first study that assesses the role of genetic polymorphisms in DMEs with breast cancer in a sample of Lebanese women. Further studies are needed to determine the genetic predisposition and gene-environment interactions of breast cancer in this population.
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Affiliation(s)
- Nathalie K Zgheib
- Department of Pharmacology & Toxicology, Faculty of Medicine, American University of Beirut, Lebanon.
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Huang SX, Wu FX, Luo M, Ma L, Gao KF, Li J, Wu WJ, Huang S, Yang Q, Liu K, Zhao YN, Li LQ. The glutathione S-transferase P1 341C>T polymorphism and cancer risk: a meta-analysis of 28 case-control studies. PLoS One 2013; 8:e56722. [PMID: 23437223 PMCID: PMC3578943 DOI: 10.1371/journal.pone.0056722] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Accepted: 01/14/2013] [Indexed: 01/01/2023] Open
Abstract
Background GSTP1, which is one major group of the glutathione S-transferase family, plays an important role in the metabolism of carcinogens and toxins, reducing damage of DNA as a suppressor of carcinogenesis. The 341C>T polymorphism of the GSTP1 has been implicated in cancer risk through cutting down its metabolic detoxification activities. However, results from previous studies remain conflicting rather than conclusive. To clarify the correlation and provide more statistical evidence for detecting the significance of 341C>T, a meta-analysis was conducted. Methodology/Principal Findings The relevant studies were identified through searching of PubMed, Embase, ISI Web of Knowledge and China National Knowledge Infrastructure in August 2012, and selected based on the established inclusion criteria for publications, then a meta-analysis was performed to quantitatively summarize the association of GSTP1 341C>T polymorphism with cancer susceptibility. Stratified analyses were employed to identify the source of heterogeneity. Publication bias was evaluated as well as sensitivity analysis. Based on 28 case-control studies with 13249 cases and 16798 controls, the pooled results indicated that the variant genotypes significantly increased the risk of cancer in homozygote comparison (TT versus CC: P = 0.012, OR = 1.40, 95% CI: 1.08–1.81, Phet. = 0.575), and recessive model (TT versus CT/CC: P = 0.012, OR = 1.40, 95% CI: 1.08–1.81, Phet. = 0.562). This was confirmed when stratified analyses were conducted according to ethnicity, source of control, matched control, quality score and cancer types. Moreover, significantly increased risk of cancer was also found in lung cancer (heterozygote comparison and dominant model). The stability of these observations was confirmed by a sensitivity analysis. Begger's funnel plot and Egger's test did not reveal any publication bias. Conclusions/Significance This meta-analysis suggests that the GSTP1 341C>T polymorphism may contribute to genetic susceptibility to cancer, especially to lung cancer, and in Asian population. Nevertheless, additional well-designed studies focusing on different ethnicity and cancer types are needed to provide a more exact and comprehensive conclusion.
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Affiliation(s)
- Sheng-xin Huang
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Fei-xiang Wu
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Min Luo
- Department of Experiment, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Liang Ma
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Ke-feng Gao
- Department of Thoracic Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Jian Li
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Wen-juan Wu
- Department of Gynecologic Oncology, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Shan Huang
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Qi Yang
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Ke Liu
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Yin-nong Zhao
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
| | - Le-qun Li
- Department of Hepatobiliary Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Nanning, People's Republic of China
- * E-mail:
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Izmirli M. A literature review of MTHFR (C677T and A1298C polymorphisms) and cancer risk. Mol Biol Rep 2012; 40:625-37. [PMID: 23076526 DOI: 10.1007/s11033-012-2101-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 10/03/2012] [Indexed: 12/18/2022]
Abstract
5,10-Methlenetetrahydrofolate reductase (MTHFR) is one of the most important enzymes for folate metabolism. This enzyme is mapped on chromosome 1, which is located at the end of the short arm (1p36.3). The C677T and A1298C are MTHFR polymorphisms that decrease in vitro MTHFR enzyme activity. Folate metabolism plays a key role in cell metabolism. These reactions are associated with purine-pyrimidine synthesis: DNA, RNA, and protein methylation. Polymorphism is also a factor in biodiversity, and be affected by ethnic heritage and geographic locale. In the case of unknown outcomes, not only should all geographical regions be investigated to ascertain biodiversity, but all populations as well to fully understand the variations in the effect. PUBMED was searched from January 2006 to December 2011 to develop an investigatory pursuit strategy. MTHFR, cancer, C677T, A1298C, and polymorphisms were key words used to focus the search. The literature review included all published relevant cancer types and MTHFR polymorphisms for that 5 years period. All selected polymorphisms data for cancer types was listed in tables for easy access and retrieval.
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Affiliation(s)
- Muzeyyen Izmirli
- Department of Medical Biology, Faculty of Medicine, Bezmialem Vakif University, 34093 Istanbul, Turkey.
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26
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Li J, Long J, Hu Y, Tan A, Guo X, Zhang S. Glutathione S-transferase M1, T1, and P1 polymorphisms and thyroid cancer risk: a meta-analysis. Cancer Epidemiol 2012; 36:e333-40. [PMID: 22765906 DOI: 10.1016/j.canep.2012.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Revised: 06/04/2012] [Accepted: 06/05/2012] [Indexed: 02/07/2023]
Abstract
Glutathione S-transferases (GSTs) genetic variants have been explored extensively as a predictive factor for cancer etiology. This meta-analysis aimed to examine the associations GSTM1, GSTT1, and GSTP1 genetic polymorphisms with thyroid cancer risk. PubMed, EMBASE, Cochrane Library, and HuGNet database were searched up to November 2011 using the appropriate terms. Twelve studies regarding GSTM1 null polymorphism (1569 cases and 2907 controls), 11 studies concerning GSTT1 null polymorphism (1515 cases and 2863 controls), and 8 studies on GSTP1 Ile105Val (965 cases and 1604 controls) were included in the meta-analysis. The random effects odds ratio was 1.07 (95% CI: 0.88-1.31; I(2) = 54.1%, P for heterogeneity = 0.013) for the GSTM1 null vs. present genotype and 1.08 (95% CI: 0.75-1.57; I(2) = 81.4%, P for heterogeneity < 0.001) for the GSTT1 null vs. present genotype, and 1.02 (95% CI: 0.70-1.49; I(2) = 74.6%, P for heterogeneity < 0.001) for the GSTP1 Val/Val+Val/Ile vs. Ile/Ile genotype. Similarly, no significant associations were demonstrated for subgroup analyses performed by ethnicity and histological type. In conclusion, these three polymorphisms are unlikely to be major determinants of susceptibility to thyroid cancer. Reasons for potential heterogeneity of effects, which could include true biologic heterogeneity, publication bias, or chance, deserve further investigation. The relationship between these three genes and thyroid carcinoma must be evaluated further with gene-gene and gene-environment interactions.
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Affiliation(s)
- Jianling Li
- Institute of Cardiovascular Disease, First Affiliated Hospital of Guangxi Medical University, Nanning, China
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Aschebrook-Kilfoy B, Neta G, Brenner AV, Hutchinson A, Pfeiffer RM, Sturgis EM, Xu L, Wheeler W, Doody MM, Chanock SJ, Sigurdson AJ. Common genetic variants in metabolism and detoxification pathways and the risk of papillary thyroid cancer. Endocr Relat Cancer 2012; 19:333-44. [PMID: 22389382 PMCID: PMC3394851 DOI: 10.1530/erc-11-0372] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Relationships are unclear between polymorphisms in genes involved in metabolism and detoxification of various chemicals and papillary thyroid cancer (PTC) risk as well as their potential modification by alcohol or tobacco intake. We evaluated associations between 1647 tagging single nucleotide polymorphisms (SNPs) in 132 candidate genes/regions involved in metabolism of exogenous and endogenous compounds (Phase I/II, oxidative stress, and metal binding pathways) and PTC risk in 344 PTC cases and 452 controls. For 15 selected regions and their respective SNPs, we also assessed interaction with alcohol and tobacco use. Logistic regression models were used to evaluate the main effect of SNPs (P(trend)) and interaction with alcohol/tobacco intake. Gene- and pathway-level associations and interactions (P(gene interaction)) were evaluated by combining P(trend) values using the adaptive rank-truncated product method. While we found associations between PTC risk and nine SNPs (P(trend) ≤ 0.01) and seven genes/regions (P(region)<0.05), none remained significant after correction for the false discovery rate. We found a significant interaction between UGT2B7 and NAT1 genes and alcohol intake (P(gene interaction)=0.01 and 0.02 respectively) and between the CYP26B1 gene and tobacco intake (P(gene interaction)=0.02). Our results are suggestive of interaction between the genetic polymorphisms in several detoxification genes and alcohol or tobacco intake on risk of PTC. Larger studies with improved exposure assessment should address potential modification of PTC risk by alcohol and tobacco intake to confirm or refute our findings.
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Affiliation(s)
- Briseis Aschebrook-Kilfoy
- Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, Department of Health and Human Services, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, USA.
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Landa I, Robledo M. Association studies in thyroid cancer susceptibility: are we on the right track? J Mol Endocrinol 2011; 47:R43-58. [PMID: 21610006 DOI: 10.1530/jme-11-0005] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
It is widely accepted that thyroid cancer is strongly determined by the individual genetic background. In this regard, it is expected that sporadic thyroid cancer is the result of multiple low- to moderate-penetrance genes interacting with each other and with the environment, thus modulating individual susceptibility. In the last years, an important number of association studies on thyroid cancer have been published, trying to determine this genetic contribution. The aim of this review is to provide a comprehensive and critical evaluation of the associations reported so far in thyroid cancer susceptibility in case-control studies performed in both non-medullary (papillary and follicular) and medullary thyroid cancers, including their potential strengths and pitfalls. We summarize the genetic variants reported to date, and stress the importance of validating the results in independent series and assessing the functional role of the associated loci.
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Affiliation(s)
- Iñigo Landa
- Hereditary Endocrine Cancer Group, Spanish National Cancer Research Centre (CNIO), Melchor Fernández Almagro 3, 28029 Madrid, Spain Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
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Reis AAS, Silva DM, Curado MP, da Cruz AD. Involvement of CYP1A1, GST, 72TP53 polymorphisms in the pathogenesis of thyroid nodules. GENETICS AND MOLECULAR RESEARCH 2010; 9:2222-9. [PMID: 21086258 DOI: 10.4238/vol9-4gmr807] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Specific genotypes appear to be related to the development of thyroid disease. We examined whether polymorphisms of the genes CYP1A1, GSTM1, GSTT1, and TP53 at codon 72 are associated with increased risk for thyroid nodules. Blood samples were obtained from 122 thyroid patients with nodules and from 134 healthy control individuals from Goiânia city, GO, Brazil. We found no significant association of CYP1A1m1 and CYP1A1m2 genotypes with thyroid diseases (P > 0.05). The null genotypes of GSTM1 and GSTT1 genes were predominant in patients with nodules, indicating that individuals that possess these genotypes have a predisposition for thyroid disease. The genotype p53Arg Arg was associated with a low risk for thyroid cancer (OR = 0.15; P < 0.0001), indicating that the arginine allele in homozygosis could have a protective effect against carcinogenesis. On the other hand, the p53ArgPro genotype was significantly associated with malignant neoplastic nodules (OR = 3.65; P = 0.001). Interindividual variation in susceptibility to thyroid diseases could provide new perspectives for early diagnosis, prognosis and treatment, indicating which patients with thyroid nodules will benefit from treatment, depending on specific polymorphic profiles.
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Affiliation(s)
- A A S Reis
- Universidade Federal de Goiás, Goiânia, GO, Brasil.
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Polymorphisms of CYP1A1, GSTM1 and GSTT1 Loci as the Genetic Predispositions of Oral Cancers and Other Oral Pathologies: Tobacco and Alcohol as Risk Modifiers. Indian J Clin Biochem 2010; 25:260-72. [PMID: 21731197 DOI: 10.1007/s12291-010-0057-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2009] [Accepted: 06/07/2010] [Indexed: 10/19/2022]
Abstract
Polycyclic aromatic hydrocarbons of tobacco require activation by phase I enzymes, such as cytochrome-P4501A1 (CYP1A1) to become an ultimate carcinogen, which are subjected to detoxification by phase II enzymes, especially glutathione S-transferases (GSTs). A study was designed to find whether genetic predisposition are risk modifiers of oral pathologies. The study included 102 cases with Oral Cancers (OCs), 68 cases with nonmalignant pathologies, 100 cases as control group. GSTM1 null genotype was associated with increased risk of OCs but not with benign pathologies. Deleted GSTT1 was associated with all pathologies. Both m1m2 and m2m2 polymorphisms of CYP1A1 were associated with oral pathologies.
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Thoudam RD, Yadav DS, Mishra AK, Kaushal M, Ihsan R, Chattopadhyay I, Chauhan PS, Sarma J, Zomawia E, Verma Y, Nandkumar A, Mahanta J, Phukan R, Kapur S, Saxena S. Distribution of glutathione S-transferase T1 and M1 genes polymorphisms in North East Indians: a potential report. Genet Test Mol Biomarkers 2010; 14:163-9. [PMID: 20073549 DOI: 10.1089/gtmb.2009.0132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND Detoxifying glutathione S-transferase (GST) gene polymorphisms show variation in different ethnic populations. GST detoxifies and metabolizes carcinogens, including oxygen free radicals. GST polymorphisms have been associated with susceptibility to different diseases. In the current study, allelic polymorphisms of GSTM1 and GSTT1 were analyzed in three ethnic groups of North East (NE) India where a high prevalence of various cancers and other diseases such as hypertension, tuberculosis, and asthma have been reported. METHODS We compared the prevalence of GSTT1 and GSTM1 deletion genotypes, which were determined by multiplex polymerase chain reaction, in 422 voluntary, healthy NE Indians with those of other populations. The data was statistically analyzed. RESULTS The GSTT1-null genotype was found in 51%, 34.3%, and 15.7% of individuals (from Mizoram, Sikkim, and Assam regions of NE India, respectively), whereas the GSTM1-null genotype was found in 46.9%, 46%, and 35% of individuals from the same areas. CONCLUSIONS The NE Indians differ from the rest of the Indian population with reference to genotypic distribution of GST polymorphisms but the frequency was found to be similar to that which has been reported from China. This may explain the hypothesis of the common ancestral origin of both the NE Indians and the Chinese and a higher frequency of cancers such as gastric, esophageal, and oral cancers, which has been reported from these regions. This study establishes baseline frequency data for GST polymorphisms for future case control studies on the role these polymorphisms play with regard to diseases. The results presented here provide the first report on GST polymorphisms in the NE Indian population.
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Kondo S, Sturgis EM, Li F, Wei Q, Li G. GSTM1 and GSTT1 null polymorphisms and risk of salivary gland carcinoma. Int J Clin Exp Med 2009; 2:68-75. [PMID: 19436833 PMCID: PMC2680049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Accepted: 02/23/2009] [Indexed: 05/27/2023]
Abstract
Glutathione S-transferase (GST) genes detoxify and metabolize carcinogens, including oxygen free radicals which may contribute to salivary gland carcinogenesis. This cancer center-based case-control association study included 166 patients with incident salivary gland carcinoma (SGC) and 511 cancer-free controls. We performed multiplex polymerase chain reaction-based polymorphism genotyping assays for GSTM1 and GSTT1 null genotypes. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated with multivariable logistic regression analyses adjusted for age, sex, ethnicity, tobacco use, family history of cancer, alcohol use and radiation exposure. In our results, 27.7% of the SGC cases and 20.6% of the controls were null for the GSTT1 (P = 0.054), and 53.0% of the SGC cases and 50.9% of the controls were null for the GSTM1 (P = 0.633). The results of the adjusted multivariale regression analysis suggested that having GSTT1 null genotype was associated with a significantly increased risk for SGC (odds ratio 1.5, 95% confidence interval 1.0-2.3). Additionally, 13.9% of the SGC cases but only 8.4% of the controls were null for both genes and the results of the adjusted multivariable regression analysis suggested that having both null genotypes was significantly associated with an approximately 2-fold increased risk for SGC (odds ratio 1.9, 95% confidence interval 1.0-3.5). The presence of GSTT1 null genotype and the simultaneous presence of GSTM1 and GSTT1 null genotypes appear associated with significantly increased SGC risk. These findings warrant further study with larger sample sizes.
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Affiliation(s)
- Sayaka Kondo
- Departments of Head and Neck Surgery, The University of Texas M. D. Anderson Cancer CenterHouston, Texas, USA
- The University of Texas Dental BranchHouston, Texas, USA
| | - Erich M. Sturgis
- Departments of Head and Neck Surgery, The University of Texas M. D. Anderson Cancer CenterHouston, Texas, USA
- Departments of Epidemiology, The University of Texas M. D. Anderson Cancer CenterHouston, Texas, USA
| | - Fanglin Li
- Departments of Head and Neck Surgery, The University of Texas M. D. Anderson Cancer CenterHouston, Texas, USA
- Department of Hematology, Qilu Hospital, Shandong UniversityJinan, P.R. China, 250012
| | - Qingyi Wei
- Departments of Epidemiology, The University of Texas M. D. Anderson Cancer CenterHouston, Texas, USA
| | - Guojun Li
- Departments of Head and Neck Surgery, The University of Texas M. D. Anderson Cancer CenterHouston, Texas, USA
- Departments of Epidemiology, The University of Texas M. D. Anderson Cancer CenterHouston, Texas, USA
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Guilhen AC, Bufalo NE, Morari EC, Leite JL, Assumpcao LV, Tincani AJ, Ward LS. Role of the N-Acetyltransferase 2 Detoxification System in Thyroid Cancer Susceptibility. Clin Cancer Res 2008; 15:406-12. [DOI: 10.1158/1078-0432.ccr-08-1835] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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