1
|
Layne TM, Rothstein JH, Song X, Andersen SW, Benn EKT, Sieh W, Klein RJ. Variants in Vitamin D-related Genes and Prostate Cancer Risk in Black Men. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.06.29.24309698. [PMID: 38978663 PMCID: PMC11230321 DOI: 10.1101/2024.06.29.24309698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
BACKGROUND The relationship between vitamin D and prostate cancer has primarily been characterized among White men. However, Black men have higher prostate cancer incidence and mortality rates, chronically low circulating vitamin D levels, and ancestry-specific genetic variants in vitamin D-related genes. Here, we examine six critical genes in the vitamin D pathway and prostate cancer risk in Black men. METHODS We assessed a total of 69 candidate variants in six genes ( GC, CYP27A1, CYP27B1, CYP24A1, VDR , and RXRA ) including functional variants previously associated with prostate cancer and circulating 25(OHD) in White men. Associations with prostate cancer risk were examined using genome-wide association study data for approximately 10,000 prostate cancer cases and 10,000 controls among Black men and over 85,000 cases and 91,000 controls among White men. A statistical significance threshold of 0.000724 was used to account for the 69 variants tested. RESULTS None of the variants examined were significantly associated with prostate cancer risk among Black men after multiple comparison adjustment. Four variants tested P<0.05 in Black men, including two in RXRA (rs41400444 OR=1.09, 95% CI: 1.01-1.17, P = 0.024 and rs10881574 OR = 0.93, 0.87-1.00, P = 0.046) and two in VDR (rs2853563 OR = 1.07, 1.01-1.13, P = 0.017 and rs1156882 OR = 1.06, 1.00-1.12, P = 0.045). Two variants in VDR were also positively associated with risk in White men (rs11568820 OR = 1.04, 1.02-1.06, P = 0.00024 and rs4516035 OR = 1.03, 1.01-1.04, P = 0.00055). CONCLUSION We observed suggestive non-significant associations between genetic variants in RXRA and VDR and prostate cancer risk in Black men. Future research exploring the relationship of vitamin D with cancer risk in Black men will need larger sample sizes to identify ancestry-specific variants relevant to risk in this population.
Collapse
|
2
|
Vitamin D receptor polymorphism and prostate cancer prognosis. Curr Urol 2022; 16:246-255. [PMID: 36714231 PMCID: PMC9875206 DOI: 10.1097/cu9.0000000000000141] [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] [Received: 02/14/2022] [Accepted: 04/25/2022] [Indexed: 02/01/2023] Open
Abstract
Background Prostatic epithelial cells synthesize the active form of vitamin D (1,25-dihydroxyvitamin D3), which participates in regulating prostate growth. Calcitriol, a synthetic form of vitamin D3, exhibits antiproliferative and prodifferentiation activities in prostate cancer. The function of 1,25-dihydroxyvitamin D3 is mediated by its binding to vitamin D receptor (VDR). VDR forms a heterodimer, typically with retinoid X receptor, to regulate vitamin D target genes. We evaluated the relationship between VDR polymorphism and clinical characteristics associated with prostate cancer risk and prognosis among Egyptian men. Materials and methods This case-control study included 2 groups of patients: group A, a control group of 50 subjects with benign prostate hyperplasia, and group B, 50 subjects newly diagnosed with prostate cancer. All participants performed complete blood count, liver and kidney function tests, prostate specific antigen measurement, histopathological analysis and immunohistochemistry for Dickkopf Homolog 3. Restriction fragment length polymorphism-polymerase chain reaction as performed to detect VDR polymorphism. Results Patients with prostate cancer and controls showed a significantly different CA genotype frequency (p = 0.007). Furthermore, prostate-specific antigen levels were significantly different in different genotypes in patients with prostate cancer (p < 0.001). Finally, T stage and the VDR ApaI C/A polymorphism were significantly associated (p < 0.041). Conclusion The VDR ApaI C/A polymorphism may be a diagnostic and prognostic marker for prostate cancer in Egyptian men.
Collapse
|
3
|
Association of Vitamin D receptor gene variations with Gastric cancer risk in Kashmiri population. Mol Biol Rep 2021; 48:3313-3325. [PMID: 33942233 DOI: 10.1007/s11033-021-06376-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 04/24/2021] [Indexed: 12/12/2022]
Abstract
Vitamin D receptor (VDR) mediates cellular processes like cell cycle arrest and apoptosis which effect cancer susceptibility. VDR single nucleotide polymorphisms (SNPs) have a significant influence on functioning of VDR protein and subsequently contribute to the risk of cancer occurrence and progression. The present case-control study was carried out between 2016 and 2020 to investigate the association of VDR BsmI/ApaITaqI SNPs with Gastric Cancer (GC) risk in ethnic Kashmiri population not only for establishing a molecular marker for GC but also to facilitate the outcomes of personalized medicine in future. The polymorphisms of BsmI and ApaI of the VDR gene were evaluated using Polymerase Chain Reaction-Restriction Fragment Length Polymorphism followed by Di-Deoxy Sanger sequencing in 143 GC cases and 150 controls. The mean age (in years) was 53.5 ± 7.92 and 51.2 ± 8.25 and mean Body mass index was 22.68 ± 4.27 kg/m2 and 23.81 ± 3.71 kg/m2 for cases and controls respectively. The mean CEA levels of GC cases was 40.2 ± 10.9 ng/ml. Genotypic distribution of VDR BsmI differed significantly between GC cases and controls (GG vs GA + AA; adjusted P = 0.014) and followed dominant mode of inheritence. Stratification of VDR BsmI revealed that frequency of variant genotype (GA + AA) was significantly higher in Preobese GC cases (P = 0.001), GC patients consuming < 5 cups of salt tea/day (P < 0.0001) and with no family history of gastrointestinal cancer (P = 0.014) compared to healthy controls. ATC haplotype associated with high GC risk. In conclusion, our study suggests that VDR BsmI SNP has a significant association with increased risk of GC especially in preobese population and BsmI/ApaITaqI SNPs significantly decreased the overall survival in GC patients of Kashmiri population.
Collapse
|
4
|
Mashhadi MA, Arbabi N, Sepehri Rad N, Sargazi S, Harati-Sadegh M. Association between common variants in vitamin D receptor gene and susceptibility to Non-Hodgkin's lymphoma: a case-control study. NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2021; 40:288-299. [PMID: 33446057 DOI: 10.1080/15257770.2020.1871488] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Vitamin D (VDR)-mediated signaling contributes to the cell signaling pathways that affect cancer development. This study is conducted on 104 patients diagnosed with non-Hodgkin's lymphoma (NHL) and 246 healthy subjects to investigate the link between five genetic variants spanning the VDR gene and the risk of this malignancy in Iranian subjects. The PCR-RFLP method was used for the analysis of BsmI (rs1544410), ApaI (rs7975232), FokI (rs2228570) and TaqI (rs731236) variants. A simple Tetra-ARMS-PCR technique was employed for the genotyping of the Cdx2 (rs11568820) variant. No significant link was found between both groups regarding ApaI (rs7975232) and FokI (rs2228570) variants (P > 0.05). Also, different genetic models of TaqI (rs731236), BsmI (rs1544410) and Cdx2 (rs11568820) polymorphisms were significantly correlated to decreased risk of NHL (Odd ratios <1). We found three haplotypes were strongly associated with an increased risk of NHL (P < 0.0001). Linkage-disequilibrium (LD) analysis showed a strong linkage between TaqI (rs731236) and BsmI (rs1544410) among NHL case and control subjects. Our findings indicated that functional variants of the VDR gene are linked to a decreased risk of NHL in our population. Further replication studies in different ethnic groups are needed to validate our results.
Collapse
Affiliation(s)
- Mohammad Ali Mashhadi
- Department of Internal Medicine, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Narges Arbabi
- Infectious Diseases and Tropical Medicine Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Nahid Sepehri Rad
- Infectious Diseases and Tropical Medicine Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Saman Sargazi
- Cellular and Molecular Research Center, Resistant Tuberculosis Institute, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mahdiyeh Harati-Sadegh
- Genetic of Non-Communicable Disease Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| |
Collapse
|
5
|
Gnagnarella P, Raimondi S, Aristarco V, Johansson H, Bellerba F, Corso F, De Angelis SP, Belloni P, Caini S, Gandini S. Ethnicity as modifier of risk for Vitamin D receptors polymorphisms: Comprehensive meta-analysis of all cancer sites. Crit Rev Oncol Hematol 2020; 158:103202. [PMID: 33387627 DOI: 10.1016/j.critrevonc.2020.103202] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 11/16/2020] [Accepted: 12/20/2020] [Indexed: 12/14/2022] Open
Abstract
Vitamin D receptors polymorphisms are found to be associated with several cancers. Since their prevalence vary across ethnicities and ethnicity itself seems to influence the cancer risk, a comprehensive meta-analysis was performed to investigate the role of VDR Fok1, Bsm1, Taq1, Apa1, Cdx2 and cancer risk at specific organ sites. Odds ratios, calculated with random-effects models, summarized one-hundred-ninety-two independent studies for twenty-two cancer sites. Evidence was provided that Fok1, Bsm1, Cdx2, Apa1 and Taq1 are linked to cancer susceptibility for colorectal, lung, ovarian, skin, multiple myeloma and brain cancer. Stratifying by ethnicity, some differences were found, partially explained by minor allele frequency (MAF), for colorectal cancer, ovarian and prostate cancer in Caucasian and prostate cancer in Asian populations. In summary, ethnicity may be a modifier of cancer risk, in particular for hormone dependent cancers and it should be considered evaluating the effect of VDR on cancer risk.
Collapse
Affiliation(s)
- Patrizia Gnagnarella
- Division of Epidemiology and Biostatistics, IEO European Institute of Oncology IRCCS, Milan, Italy.
| | - Sara Raimondi
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
| | - Valentina Aristarco
- Division of Cancer Prevention and Genetics, IEO European Institute of Oncology IRCCS, Milan, Italy
| | - Harriet Johansson
- Division of Cancer Prevention and Genetics, IEO European Institute of Oncology IRCCS, Milan, Italy
| | - Federica Bellerba
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
| | - Federica Corso
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
| | | | - Pietro Belloni
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy; Department of Statistical Sciences, University of Padua, Italy
| | - Saverio Caini
- Cancer Risk Factors and Lifestyle Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network (ISPRO), Florence, Italy
| | - Sara Gandini
- Department of Experimental Oncology, IEO European Institute of Oncology IRCCS, Milan, Italy
| |
Collapse
|
6
|
Phuthong S, Settheetham-Ishida W, Natphopsuk S, Ishida T. Genetic Polymorphisms of Vitamin D Receptor Gene are Associated with Cervical Cancer Risk in Northeastern Thailand. Asian Pac J Cancer Prev 2020; 21:2935-2939. [PMID: 33112551 PMCID: PMC7798167 DOI: 10.31557/apjcp.2020.21.10.2935] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVE This study aimed to explore whether VDR polymorphisms (Fok1, Apa1 and Taq1) are associated to the cervical cancer in Thai population. MATERIALS AND METHODS Subjects of 204 cervical cancer patient and 204 age-matched healthy control were enrolled in the case-control study. VDR polymorphisms were detected by using real-time PCR. Haplotype analysis of three loci was applied to the obtained genotypes. RESULTS Significantly increased risk for cervical cancer was observed in carriers of TT genotype (p = 0.0388) and T allele (p = 0.0357) of Fok1 and TC genotype (p = 0.0001), CC genotype (p = 0.0160) and the C allele of Taq1 (p = 0.0001). Haplotype analyses revealed a significant correlation between C-T-C, T-G-C and T-T-C haplotypes and elevated risk for cervical cancer (OR = 2.06; 95%CI = 1.06-4.00; p = 0.0313, OR = 2.15; 95%CI = 1.22-3.80; p = 0.0078 and OR = 2.81; 95%CI = 1.53-5.16; p = 0.0006, respectively). Furthermore, haplotype carrying C allele of Taq1 (C-G-C + C-T-C + T-G-C + T-T-C) significantly increased cervical cancer risk with OR of 1.92 (95%CI = 1.32-2.79, p = 0.0006). CONCLUSION Our finding revealed an association between VDR polymorphisms and cervical cancer risk. Taq1 C allele might be a molecular marker for cervical cancer development.<br />.
Collapse
Affiliation(s)
- Sophida Phuthong
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | | | - Sitakan Natphopsuk
- Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand
| | - Takafumi Ishida
- Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| |
Collapse
|
7
|
Kang S, Zhao Y, Wang L, Liu J, Chen X, Liu X, Shi Z, Gao W, Cao F. Lack of association between the risk of prostate cancer and vitamin D receptor Bsm I polymorphism: a meta-analysis of 27 published studies. Cancer Manag Res 2018; 10:2377-2387. [PMID: 30122987 PMCID: PMC6078094 DOI: 10.2147/cmar.s171305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND The association between vitamin D receptor gene Bsm I (rs1544410) polymorphism and prostate cancer (PCa) risk has been investigated by numerous previous studies, which yielded inconsistent results. We conducted this meta-analysis to derive a relatively precise description of this association. METHODS All studies published up to December 2017 were identified via a systematic search of PubMed, Embase, and China National Knowledge Infrastructure databases. Pooled odds ratios (ORs) with their 95% confidence intervals (CIs) were estimated to describe the strength of the relationship between Bsm I and PCa risk. RESULTS In this meta-analysis, 27 studies with 9,993 cases and 9,345 controls were included. The pooled results revealed that Bsm I polymorphism was not associated with PCa risk in the overall analysis. Moreover, no significant relationship was found in the subgroup analyses by ethnicities, genotyping methods, Hardy-Weinberg equilibrium status, and Gleason score. In the stratified analysis by the source of controls and clinical stages, controls of benign prostatic hyperplasia (BPH) seemed to be in the particular groups in which the association of PCa risk with Bsm I polymorphism was significant (Bb vs. bb: OR=0.643, 95% CI=0.436-0.949, p=0.026; BB/Bb vs. bb: OR=0.627, 95% CI=0.411-0.954, p=0.029; B vs. b: OR=0.715, 95% CI=0.530-0.965, p=0.029). CONCLUSION Our results suggest that Bsm I polymorphism is weakly associated with PCa risk, and hence, it cannot be considered as a predictor of the occurrence and development of PCa in clinical practice. Future studies with a larger number of samples are needed to verify our results.
Collapse
Affiliation(s)
- Shaosan Kang
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, People's Republic of China,
| | - Yansheng Zhao
- Department of Imaging, Kailuan General Hospital, Tangshan 063000, People's Republic of China
| | - Lei Wang
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, People's Republic of China,
| | - Jian Liu
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, People's Republic of China,
| | - Xi Chen
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, People's Republic of China,
| | - Xiaofeng Liu
- Department of Surgery, Laoting Traditional Chinese Medicine Hospital, Tangshan 063600, People's Republic of China
| | - Zhijie Shi
- Department of Urology, Tangshan Gongren Hospital, Tangshan 063000, People's Republic of China
| | - Weixing Gao
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, People's Republic of China,
| | - Fenghong Cao
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, People's Republic of China,
| |
Collapse
|
8
|
Moossavi M, Parsamanesh N, Mohammadoo-Khorasani M, Moosavi M, Tavakkoli T, Fakharian T, Naseri M. Positive correlation between vitamin D receptor gene FokI polymorphism and colorectal cancer susceptibility in South-Khorasan of Iran. J Cell Biochem 2018; 119:8190-8194. [PMID: 29953646 DOI: 10.1002/jcb.26826] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 02/28/2018] [Indexed: 12/16/2022]
Abstract
Colorectal cancer (CRC) is a global public health problem. Despite the major milestone in early diagnosis and treatment of colorectal cancer, the prevalence of CRC rates is still rising. The etiology of CRC is still unknown but we know CRC is influenced by both of environment and genetic factors. In this study, we aimed to elucidate the role of vitamin D receptor gene polymorphic regions; FokI and TaqI single nucleotide polymorphisms, in increasing the risk of colorectal cancer in Birjand population. One hundred patients with CRC and 100 healthy controls recruited to the study. Genotyping was performed by PCR-RFLP (restriction fragment length polymorphism) method technique for all individuals. There were statistically significant differences between ff genotype and f allele of FokI SNP in case and control groups. Our results manifested positive correlation between ff genotype and f allele of FokI SNP with colorectal cancer predisposition (P = 0.035, P = 0.0001 respectively) in South Khorasan population. The present study showed that FokI polymorphism but not TaqI polymorphism may contribute to CRC susceptibility. In addition, ff genotype of FokI polymorphism was associated with CRC risk.
Collapse
Affiliation(s)
- Maryam Moossavi
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran.,Department of Molecular Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Negin Parsamanesh
- Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran.,Department of Molecular Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Milad Mohammadoo-Khorasani
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mahsa Moosavi
- Department of Biostatistics and Epidemiology, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Tahmineh Tavakkoli
- Department of Internal Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Tahereh Fakharian
- Department of Internal Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Mohsen Naseri
- Cellular and Molecular Research Center, Genomic Research Group, Birjand University of Medical Sciences, Birjand, Iran
| |
Collapse
|
9
|
Kang S, Zhao Y, Wang L, Liu J, Chen X, Liu X, Shi Z, Gao W, Cao F. Vitamin D receptor Taq I polymorphism and the risk of prostate cancer: a meta-analysis. Oncotarget 2018; 9:7136-7147. [PMID: 29467956 PMCID: PMC5805542 DOI: 10.18632/oncotarget.23606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 12/15/2017] [Indexed: 02/06/2023] Open
Abstract
Numerous previous studies reported the association of Vitamin D receptor gene Taq Ipolymorphism with prostate cancer risk, however these results were controversial. In order to provide a relatively comprehensive description of this relationship, we conducted this meta-analysis by searching PubMed, Embase, and China National Knowledge Infrastructure. Finally, 36 studies with 8,423 cases and 8,887 controls were included. Taq I polymorphism was found to marginally increase the prostate cancer risk in recessive genetic model (tt/Tt vs. TT: Odds Ratio (OR) = 0.89, 95% Confidence Interval (CI) = 0.80–1.00, p = 0.05) and allele genetic model (t vs. T allele: OR = 0.91, 95% CI = 0.84–0.99, p = 0.003) in the overall analysis. Subgroup analyses showed that significant increased risk was found in Asians in homozygote model (tt vs. TT: OR = 0.63, 95% CI = 0.41–0.95, p = 0.029) and allele genetic model (t vs. T: OR = 0.78, 95% CI = 0.67–0.90, p = 0.002), and in the subgroup of population-based controls in all the genetic models. These results suggest that Taq Ipolymorphism might be a risk factor of prostate cancer risk, especially in Asians. It could be considered as a promising target to predict the prostate cancer risk for clinical practice.
Collapse
Affiliation(s)
- Shaosan Kang
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - Yansheng Zhao
- Department of Imaging, KaiLuan General Hospital, Tangshan 063000, China
| | - Lei Wang
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - Jian Liu
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - Xi Chen
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - Xiaofeng Liu
- Department of Surgery, LaoTing Traditional Chinese Medicine Hospital, Tangshan 063600, China
| | - Zhijie Shi
- Department of Urology, TangShan Gongren Hospital, Tangshan 063000, China
| | - Weixing Gao
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - Fenghong Cao
- Department of Urology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| |
Collapse
|
10
|
Kambale PR, Haldar D, Kabi BC, Kambale KP. Study of Vitamin D Receptor Gene Polymorphism (FokI, TaqI and ApaI) Among Prostate Cancer Patients in North India. J Clin Diagn Res 2017; 11:BC05-BC08. [PMID: 28764147 DOI: 10.7860/jcdr/2017/24290.9976] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 02/09/2017] [Indexed: 01/02/2023]
Abstract
INTRODUCTION Incidence of prostate cancer is rising worldwide. Multiple factors have been suggested for the aetiology of prostate cancer including ethnic, genetic and diet. Vitamin D (calcitriol) has been shown to have role in cell growth and differentiation and its deficiency is implicated as one of the aetiological factors in prostate cancer. Prostatic epithelial cells express Vitamin D Receptor (VDR) as well as 1α- hydroxylase enzyme that are required for the synthesis of calcitriol and its action. Polymorphism in VDR gene has been associated with prostate cancer in some epidemiological studies; but, there is paucity of information in the Indian context. AIM The present study was aimed to explore the association of VDR gene polymorphism with the development of prostate cancer. MATERIALS AND METHODS Three Single Nucleotide Polymorphisms (SNP) sites viz., FokI, TaqI and ApaI were analysed in 120 cases of prostate cancer which were compared with their 120 healthy first degree relatives and 120 non-related controls in the Department of Biochemistry in collaboration with the Department of Urology. RESULTS Analysis showed significantly decreased incidence of Tt and Aa genotype in prostate cancer patients as compared to healthy non-relative controls (p=0.016 and 0.043 respectively). As compared to first degree relatives, incidence of Tt genotype is significantly lower in cases (p=0.005). No significant association was found with FokI polymorphism. CONCLUSION This study suggests the protective role of heterozygous genotypes of TaqI and ApaI polymorphism against the development of prostate cancer.
Collapse
Affiliation(s)
- Pankaj Ramrao Kambale
- Assistant Professor, Department of Biochemistry, S.M.B.T. Institute of Medical Sciences and Research Centre, Nashik, Maharashtra, India
| | - Deepa Haldar
- Senior Resident, Department of Biochemistry, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - B C Kabi
- Professor Director, Department of Biochemistry, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Kalpana Pankaj Kambale
- Senior Lecturer, Department of Periodontology, S.M.B.T. Institute of Dental Sciences and Research, Nasik, Maharashtra, India
| |
Collapse
|
11
|
El Ezzi AA, Boyko VG, Baker MT, Zaidan WR, Hraiki KM, El Saidi MA, Kuddus RH. Association of Some Polymorphisms in the VDR Gene, CYP17 Gene and SRD5A2 Gene and Prostate Cancer among Lebanese
Men. Asian Pac J Cancer Prev 2017; 18:93-100. [PMID: 28240015 PMCID: PMC5563125 DOI: 10.22034/apjcp.2017.18.1.93] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Aims: The goal of the study was to investigate possible association of some single nucleotide polymorphisms (SNPs) in the VDR gene (the FokI, BsmI, ApaI and TaqαI loci), and the CYP17 gene (the MspA1I locus), and 0 or 9 TA repeats in the SRD5A2 gene, and prostate cancer (PCa) among Lebanese men. Materials and Methods: Blood DNA of 69 subjects with confirmed PCa and 69 controls, all about 50 years of age or older, was subjected to PCR or PCR-restriction fragment-length polymorphism (PCR-RFLP) analyses, and the risk-bearing and the protective alleles were identified. The odds ratio (OR) of having a genotype and the relative risk (RR) of developing PCa were calculated. In addition, the distributions of homozygosis and heterozygosis in the risk-bearing alleles and the protective alleles among the control and the PCa groups were compared. Results: The f allele of the VDR FokI locus and the (TA) 9 repeat allele of the SRD5A2 gene were found to be associated with increased risks of PCa (p = 0.006 and 0.050, respectively). Homozygosis in the risk-bearing alleles was rare both in the control and the PCa groups. A higher fraction of the controls compared to the PCa group was double-homozygous in the two protective alleles (52.2% for controls, 24.6% for PCa group, p = <0.001). Conclusions: To the best of our knowledge, this is the first genetic study demonstrating the association of certain polymorphisms of the VDR gene and the SDR5A2 gene and increased risk of PCa among Lebanese men. Our study also indicates that the overall polymorphism profile of all genes involved in the prostate physiology is likely to be a better indicator for PCa risk than the polymorphisms in the individual genes.
Collapse
Affiliation(s)
- Asmahan A El Ezzi
- Lebanese Atomic Energy Commission, Beirut, Lebanon,Department of Biochemistry, Lebanese University, Hadath, Lebanon,Department of Chemistry, Utah Valley University, Orem, Utah, USA.
| | | | | | | | | | | | | |
Collapse
|