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Abaoğlu İY, Güleç Yılmaz S, Akdeniz FT, Attar R, Barut Z, Dalan AB, İsbir T. Investigation of Catechol-O-methyltransferase (COMT) gene Val158Met polymorphism in ovarian cancer. J Turk Ger Gynecol Assoc 2021; 22:42-46. [PMID: 33389924 PMCID: PMC7944234 DOI: 10.4274/jtgga.galenos.2020.2020.0091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Objective: Catechol-O-methyltransferase (COMT), the product of the COMT gene, detoxifies the carcinogenic catechol estrogens. The aim of the present study was to examine the relationship between COMT Val158Met polymorphism and the risk of ovarian cancer. Material and Methods: The study groups consist of 94 individuals as a patients group with ovarian cancer (n=47) and control group (n=47). The allele and genotype frequencies were determined according to Hardy-Weinberg equilibrium (HWE). The allele and genotype frequencies. determined according to HWE. Genetic analysis were performed by real-time-polymerase chain reaction instrument, and the statistical analysis were performed by SPSS program. Results: Although no significant relationship was obtained among groups (p=0.413) regarding COMT gene Val158Met polymorphism, the genotype frequencies for COMT Val158Met (rs4860) polymorphism in groups was homozygote wild type GG genotype 25.5%, heterozygote GA genotype 46.8%, homozygote mutant AA genotype 27.7%. Conclusion: This study is the first to investigate the relationship between ovarian cancer and the Val158Met polymorphism in the COMT gene in a Turkish population. No statistically significant relationship was identified among genotypes belonging to the patient and control groups although sample sizes were relatively small and the analysis should be repeated in a larger cohort.
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Affiliation(s)
- İpek Yağmur Abaoğlu
- Department of Molecular Medicine, Institute of Health Sciences, Yeditepe University, İstanbul, Turkey
| | - Seda Güleç Yılmaz
- Department of Medical Biology, Yeditepe University Faculty of Medicine, İstanbul, Turkey
| | - Fatma Tuba Akdeniz
- Department of Medical Biology, Yeditepe University Faculty of Medicine, İstanbul, Turkey
| | - Rukset Attar
- Department of Obstetrics and Gynecology, Yeditepe University Faculty of Medicine, İstanbul, Turkey
| | - Zerrin Barut
- Department of Basic Medical Science, Antalya Bilim University Faculty of Dentistry, Antalya, Turkey
| | - Altay Burak Dalan
- Department of Medical Biology, Yeditepe University Faculty of Medicine, İstanbul, Turkey
| | - Turgay İsbir
- Department of Medical Biology, Yeditepe University Faculty of Medicine, İstanbul, Turkey
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Tolba MF, Omar HA, Hersi F, Nunes ACF, Noreddin AM. The impact of Catechol-O-methyl transferase knockdown on the cell proliferation of hormone-responsive cancers. Mol Cell Endocrinol 2019; 488:79-88. [PMID: 30904591 DOI: 10.1016/j.mce.2019.03.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Revised: 02/24/2019] [Accepted: 03/17/2019] [Indexed: 02/07/2023]
Abstract
Estrogen (E2) plays a central role in the development and progression of hormone-responsive cancers. Estrogen metabolites exhibit either stimulatory or inhibitory roles on breast and prostate cells. The catechol metabolite 4-hydroxyestradiol (4-OHE2) enhances cell proliferation, while 2-methoxyestradiol (2 ME) possesses anticancer activity. The major metabolizing enzyme responsible for detoxifying the deleterious metabolite 4-OHE2 and forming the anticancer metabolite 2 ME is Catechol-O-Methyl Transferase (COMT). The current work investigated the relationship between the expression level of COMT and the cell proliferation of hormone-responsive cancers. The results showed that COMT silencing enhanced the cell proliferation of ER-α positive cancer cells MCF-7 and PC-3 but not the cells that lack ER-α expression as MDA-MB231 and DU-145. The data generated from our study provides a better understanding of the effect of COMT on critical signaling pathways involved in the development and progression of breast cancer (BC) and prostate cancer (PC) including ER-α, p21cip1, p27kip1, NF-κB (P65) and CYP19A1. These findings suggest that COMT enzyme plays a tumor suppressor role in hormone receptor-positive tumors which opens the door for future studies to validate COMT expression as a novel biomarker for the prediction of cancer aggressiveness and treatment efficacy.
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Affiliation(s)
- Mai F Tolba
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt; Chapman University School of Pharmacy, Irvine, CA 92618, USA; School of Medicine, University of California, Irvine, CA, USA.
| | - Hany A Omar
- College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, 62511 Egypt; Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates.
| | - Fatima Hersi
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Ane C F Nunes
- Division of Nephrology and Hypertension, School of Medicine, University of California, Irvine, CA 92697, USA
| | - Ayman M Noreddin
- Chapman University School of Pharmacy, Irvine, CA 92618, USA; School of Medicine, University of California, Irvine, CA, USA; College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates
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Rai V, Yadav U, Kumar P. Impact of Catechol-O-Methyltransferase Val 158Met (rs4680) Polymorphism on Breast Cancer Susceptibility in Asian Population. ASIAN PACIFIC JOURNAL OF CANCER PREVENTION : APJCP 2017; 18:1243-1250. [PMID: 28610409 PMCID: PMC5555530 DOI: 10.22034/apjcp.2017.18.5.1243] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Background: Catechol-O-methyltransferase (COMT) is an important estrogen-metabolizing enzyme. Numerous case-control studies have evaluated the role COMT Val 158Met (rs4680;472G->A) polymorphism in the risk of breast cancer and provided inconclusive results, hence present meta-analysis was designed to get a more reliable assessment in Asian population. Methods: A total of 26 articles were identified through a search of four electronic databases-PubMed, Google Scholar, Science Direct and Springer link, up to March, 2016. Pooled odds ratios (ORs) with 95% con¬fidence intervals (CIs) were used as association measure to find out relationship between COMT Val158Metpolymorphism and the risk of breast cancer. We also assessed between study heterogeneity and publication bias. All statistical analyses were done by Open Meta-Analyst. Results: Twenty six case-control studies involving 5,971 breast cancer patients and 7,253 controls were included in the present meta-analysis. The results showed that the COMT Val158Met polymorphism was significantly associated with breast cancer risk except heterozygote model(allele contrast odds ratio (ORAvsG)= 1.13, 95%CI=1.02-1.24,p=0.01; heterozygote/co-dominant ORGAvsGG= 1.03, 95%CI=0.96-1.11,p=0.34; homozygote ORAAvsGG= 1.38, 95%CI= 1.08-1.76,p=0.009; dominant model ORAA+GAvsGG= 1.08, 95%CI=1.01-1.16,p=0.02; and recessive model ORAAvsGA+GG= 1.35, 95%CI=1.07-1.71,p=0.01). In addition, we also performed subgroup analysis based on source of controls and menopausal state of patients. Conclusions: In conclusion, the COMT Val158Met polymorphism was related to increased breast cancer susceptibility in the Asian population.
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Affiliation(s)
- Vandana Rai
- Human Molecular Genetics Laboratory, Department of Biotechnology, VBS Purvanchal University, Jaunpur-222 003, UP, India.
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Sak K. The Val158Met polymorphism in COMT gene and cancer risk: role of endogenous and exogenous catechols. Drug Metab Rev 2016; 49:56-83. [PMID: 27826992 DOI: 10.1080/03602532.2016.1258075] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Catechol-O-methyltransferase, COMT, is an important phase II enzyme catalyzing the transfer of a methyl-group from S-adenosylmethionine to a catechol-containing substrate molecule. A genetic variant Val158Met in the COMT gene leads to a several-fold decrease in the enzymatic activity giving rise to the accumulation of potentially carcinogenic endogenous catechol estrogens and their reactive intermediates and increasing thus the risk of tumorigenesis. However, numerous association studies between the COMT genotype and susceptibility to various malignancies have shown inconsistent and controversial findings indicating that additional gene-gene and gene-environment interactions might be crucial in modulating the physiological role of the COMT. In this review article, the important contribution of dietary catechol-containing flavonoids to modification of the relationships between the COMT genotype and cancer risk is discussed. Whereas, the diverse anticancer activities of common phytochemicals, such as green tea polyphenols, quercetin, fisetin or luteolin, can be markedly changed (both decreased or increased) by the COMT-mediated O-methylation of these exogenous substrates, flavonoids can also behave as potent inhibitors of the COMT enzyme slowing detoxification of endogenous catechol estrogens. Such a many-featured functioning of the COMT and its complex regulation by several different genetic and environmental factors, including plant-based food ingredients, emphasizes the necessity to further stratify the association studies between the COMT genotype and tumor risk by consumption of catechol-containing dietary flavonoids. Currently, it can be only speculated that some of the possible associations might be masked by the regular intake of specific food polyphenols, taking effect in certain communities or populations.
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Affiliation(s)
- Katrin Sak
- a Department of Hematology and Oncology , Institute of Clinical Medicine, University of Tartu , Tartu , Estonia
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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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Zhou Q, Wang Y, Chen A, Tao Y, Song H, Li W, Tao J, Zuo M. Association between the COMT Val158Met polymorphism and risk of cancer: evidence from 99 case-control studies. Onco Targets Ther 2015; 8:2791-803. [PMID: 26491354 PMCID: PMC4599643 DOI: 10.2147/ott.s90883] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Catechol-O-methyltransferase (COMT) plays a central role in DNA repair and estrogen-induced carcinogenesis. Many recent epidemiologic studies have investigated the association between the COMT Val158Met polymorphism and cancer risk, but the results are inconclusive. In this study, we performed a meta-analysis to investigate the association between cancer susceptibility and COMT Val158Met in different genetic models. Overall, no significant associations were found between COMT Val158Met polymorphism and cancer risk (homozygote model: odds ratio [OR] =1.05, 95% confidence interval [CI] = [0.98, 1.13]; heterozygote model: OR =1.01, 95% CI = [0.98, 1.04]; dominant model: OR =1.02, 95% CI [0.97, 1.06], and recessive model: OR =1.03, 95% CI [0.97, 1.09]). In the subgroup analysis of cancer type, COMT Val158Met was significantly associated with increased risks of bladder cancer in recessive model, and esophageal cancer in homozygote model, heterozygote model, and dominant model. Subgroup analyses based on ethnicities, COMT Val158Met was significantly associated with increased risk of cancer in homozygote and recessive model among Asians. In addition, homozygote, recessive, and dominant models were significantly associated with increased cancer risk in the subgroup of allele-specific polymerase chain reaction genotyping. Significant associations were not observed when data were stratified by the source of the controls. In summary, this meta-analysis suggested that COMT Val158Met polymorphism might not be a risk factor for overall cancer risk, but it might be involved in cancer development at least in some ethnic groups (Asian) or some specific cancer types (bladder and esophageal cell cancer). Further evaluations of more preclinical and epidemiological studies are required.
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Affiliation(s)
- Quan Zhou
- Department of Gynecology and Obstetrics, The People’s Hospital of Three Gorges University, The First People’s Hospital of Yichang, Yichang, People’s Republic of China
| | - Yan Wang
- Department of Gynecology and Obstetrics, The People’s Hospital of Three Gorges University, The First People’s Hospital of Yichang, Yichang, People’s Republic of China
| | - Aihua Chen
- Department of Gynecology and Obstetrics, The People’s Hospital of Three Gorges University, The First People’s Hospital of Yichang, Yichang, People’s Republic of China
| | - Yaling Tao
- Department of Gynecology and Obstetrics, The People’s Hospital of Three Gorges University, The First People’s Hospital of Yichang, Yichang, People’s Republic of China
| | - Huamei Song
- Department of Gynecology and Obstetrics, The People’s Hospital of Three Gorges University, The First People’s Hospital of Yichang, Yichang, People’s Republic of China
| | - Wei Li
- Department of Gynecology and Obstetrics, The People’s Hospital of Three Gorges University, The First People’s Hospital of Yichang, Yichang, People’s Republic of China
| | - Jing Tao
- Department of Gynecology and Obstetrics, The People’s Hospital of Three Gorges University, The First People’s Hospital of Yichang, Yichang, People’s Republic of China
| | - Manzhen Zuo
- Department of Gynecology and Obstetrics, The People’s Hospital of Three Gorges University, The First People’s Hospital of Yichang, Yichang, People’s Republic of China
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Korhonen P, Kuoppamäki M, Prami T, Hoti F, Christopher S, Ellmén J, Aho V, Vahteristo M, Pukkala E, Haukka J. Entacapone and prostate cancer risk in patients with Parkinson's disease. Mov Disord 2015; 30:724-8. [PMID: 25639262 DOI: 10.1002/mds.26140] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 11/18/2014] [Accepted: 11/25/2014] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND The association between Parkinson's disease (PD) and prostate cancer, both common in elderly men, is disputable. In the STRIDE-PD study, prostate cancer developed in 9 patients (3.7%) receiving levodopa/carbidopa with entacapone, a catechol-O-methyltransferase inhibitor, versus 2 cases (0.9%) without entacapone. The current pharmacoepidemiological study aimed to determine whether entacapone increases prostate cancer incidence or mortality in PD patients and whether cumulative exposure affects these rates. METHODS We performed a retrospective cohort study using population-wide health care registers with patient-level linkage. Prostate cancer incidence and mortality were modeled by Cox's proportional hazards models. RESULTS AND CONCLUSIONS Use of entacapone with l-dopa/dopa decarboxylase inhibitor caused no increased risk of prostate cancer incidence (hazard ratio [HR]: 1.05; 95% confidence interval: 0.76-1.44) or mortality (0.93; 0.43-1.98). The HR for cumulative entacapone use of >360 days versus never-use was 0.82 (0.56-1.18) for prostate cancer incidence and 1.27 (0.60-2.72) for prostate cancer mortality.
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