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Omran MH, Fotouh BE, Shousha WG, Ismail A, Ibrahim NE, Ramadan SS. Strong Correlation of MTHFR Gene Polymorphisms with Breast Cancer and its Prognostic Clinical Factors among Egyptian Females. Asian Pac J Cancer Prev 2021; 22:617-626. [PMID: 33639682 PMCID: PMC8190368 DOI: 10.31557/apjcp.2021.22.2.617] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Indexed: 12/18/2022] Open
Abstract
Introduction: Globally, Breast cancer (BC) is considered the second most common type of cancer and the principal cause of death among affected women. Aim: In this study, we targeted to demonstrate the association of MTHFR single gene polymorphisms (SNPs) with the susceptibility of breast cancer, in addition to its correlation with the clinical patient features. Patients and Methods: This work was conducted on 100 Egyptian females with breast cancer and 60 healthy matched controls. Clinical examinations and pathological investigations were recorded. Genotyping of MTHFR polymorphisms C677T (rs1801133) and A1298C (rs1801131) by using Restriction Fragment length Polymorphisms (RFLP) and Sequencing assays were performed. Univariate, Multivariate and Haplotype analysis for the allelic frequencies and the association with clinicopathological features of BC were assessed. Results: The present data showed a strong significant association between the CT and TT of MTHFR (C677T), and AC and CC of (A1289C) with the susceptibility of BC showing highly statistical P- value (0.001). It was also demonstrated that the most frequent haplotype of the two loci of MTHFR (rs1801133-rs1801131) was TC. The latter was strongly associated with the aggressive clinical features of each of tumor size, advanced stage, involvement of cancer in lymph nodes, overexpression of HER2neu and dual negativity of both ER and PR hormones. Conclusions: SNPs within the MTHFR gene (C677T) and (A1289C) have strong correlation with BC among Egyptian females; These SNPs should be considered as important prognostic markers for identifying the individuals at high risk of developing BC and its progression.
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Affiliation(s)
- Moataza H Omran
- Department of Microbial Biotechnology, Genetic Engineering Division, National Research Centre, Cairo, Egypt
| | - Basma E Fotouh
- Department of Microbial Biotechnology, Genetic Engineering Division, National Research Centre, Cairo, Egypt
| | - Wafaa G Shousha
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
| | - Abeer Ismail
- Department of Clinical and Chemical Pathology, National Cancer Institute, Cairo University, Giza, Egypt
| | - Noha E Ibrahim
- Department of Microbial Biotechnology, Genetic Engineering Division, National Research Centre, Cairo, Egypt
| | - Shimaa S Ramadan
- Department of Chemistry, Faculty of Science, Helwan University, Cairo, Egypt
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Liu Z, Cui C, Wang X, Fernandez-Escobar A, Wu Q, Xu K, Mao J, Jin M, Wang K. Plasma Levels of Homocysteine and the Occurrence and Progression of Rectal Cancer. Med Sci Monit 2018; 24:1776-1783. [PMID: 29581416 PMCID: PMC5883868 DOI: 10.12659/msm.909217] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Zhi Liu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Chunhui Cui
- Department of Gynecologic Oncology, Shandong Cancer Hospital and Institute, Jinan, Shandong, China (mainland)
| | - Xiaoyang Wang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | | | - Qunzheng Wu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Kai Xu
- Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (mainland)
| | - Jiajia Mao
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
| | - Minxin Jin
- General Surgery, Qilu Hospital of Shandong University, , China (mainland)
| | - Kexin Wang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China (mainland)
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Awwad N, Yousef AM, Abuhaliema A, Abdalla I, Yousef M. Relationship between Genetic Polymorphisms in MTHFR (C677T, A1298C and their Haplotypes) and the Incidence Of Breast Cancer among Jordanian Females--Case-Control Study. Asian Pac J Cancer Prev 2016; 16:5007-11. [PMID: 26163632 DOI: 10.7314/apjcp.2015.16.12.5007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Breast cancer is a major cause of morbidity and mortality in Jordan and worldwide. Abnormality of DNA methylation is a possible mechanism for the development of cancer. Methylenetetrahydrofolate reductase (MTHFR) is involved in DNA methylation. Our aim was to study the association between genetic polymorphisms of MTHFR at two sites (C677T and A1298C) and their haplotypes and the risk of breast cancer among Jordanian females. MATERIALS AND METHODS A case-control study involving 150 breast cancer cases and 150 controls was conducted. Controls were age-matched to cases. Polymerase chain reaction/restriction fragment length polymorphism (PCR-RFLP) technique and sequencing were conducted to determine the genotypes. RESULTS There was a significant difference in genotype frequency of C677T in the 41-60 year age category [cases: CC (37.4%), CT (49.5%) and TT (13.2%); controls: CC (56.3%), CT (35.6%) and TT (8%), p=0.04; ORTT vs. CC: 2.5, 95% CI: (0.9-6.9); ORat least on T: 2.1, 95%CI: (1.2-3.9)]. There was no significant difference in genotype frequency of A1298C between cases and controls [cases: AA (46.6%), AC (41.8%) and CC (11.6%); controls: AA (43%), AC (47.4%) and CC (9.6%); p=0.6]. There was a significant difference of MTHFR genetic polymorphism haplotypes among breast cancer cases and controls [cases/control: CA: 38.3/45.4%; CC: 28.9/25.2%; TA: 29.2/21; TC: 3.6/8.3; p value=0.01; ORTA vs. CA=1.6; 95% CI (1.1-2.5); p=0.02]. CONCLUSIONS Genetic polymorphism of MTHFR C677T may modulate the risk of breast cancer especially in the 41-60 year age group. Additionally, TA haplotype amends the risk of breast cancer. Future studies with a larger sample size are needed to validate the role of MTHFR genetic polymorphisms in breast cancer.
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Affiliation(s)
- Nemah Awwad
- Biopharmaceutics and Clinical Pharmacy, Department of Pharmacy, The University of Jordan , Amman, Jordan E-mail :
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Iqbal MUN, Khan TA, Maqbool SA. Vitamin D receptor Cdx-2 polymorphism and premenopausal breast cancer risk in southern Pakistani patients. PLoS One 2015; 10:e0122657. [PMID: 25799416 PMCID: PMC4370503 DOI: 10.1371/journal.pone.0122657] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 02/20/2015] [Indexed: 12/14/2022] Open
Abstract
Background Vitamin D3 is a secoster oid that exerts its effect by binding to its nuclear receptor called vitamin D receptor (VDR), inducing apoptosis and thereby inhibiting cell proliferation in cancer cells. The VDR receptor, located in the nucleus, is known to regulate the functions of over 200 genes. Various allelic forms of hVDR have been discovered that increase susceptibility to various cancers. The VDR-Cdx2 polymorphism, located in the promoter region of exon 1e in the VDR gene, influences the functional activity of the receptor, since the hVDR lacks consensus TATA and CAAT boxes. The current investigation examines the association between VDR-Cdx2 polymorphism and breast cancer in premenopausal females from Southern Pakistan. Methods We conducted a case control study on 264 subjects (103 cases and 161 controls) who were recruited from a tertiary hospital located in Karachi, Pakistan. Genomic DNA was extracted from peripheral blood using a commercial kit method, and the VDR-Cdx2 polymorphism was genotyped using tetraprimer amplification refractory mutation system polymerase chain reaction (T-ARMS-PCR) method. Pearson chi square test was used to assess the association between VDR-Cdx2 genotype and breast cancer while genotype distribution in controls was evaluated by Hardy-Weinberg equilibrium (HWE). Breast cancer risk was calculated using odds ratios and 95% confidence intervals. Results The genotype distribution in the control group was in HWE (p > 0.05) for the VDR-Cdx2 polymorphism. A non-significant association was observed between VDR cdx2 polymorphism and breast cancer, however the GG genotype was at risk (OR = 1.832, 95% CI = 0.695–4.828) of developing breast cancer. Conclusion The GG genotype of Cdx2-VDR gene polymorphism may increase the risk of developing breast cancer in young female patients in South Pakistan. Further investigations examining additional single nucleotide polymorphisms (SNPs) in VDR are required to assess their relationships with breast cancer.
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Affiliation(s)
| | - Taseer Ahmed Khan
- Department of Physiology, University of Karachi, Karachi, Pakistan
- * E-mail:
| | - Syed Amir Maqbool
- Department of Clinical Oncology, Karachi Institute of Radiotherapy and Nuclear Medicine, Karachi, Pakistan
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Liu Y, Zhou LS, Xu XM, Deng LQ, Xiao QK. Association of dietary intake of folate, vitamin B6 and B12 and MTHFR genotype with breast cancer risk. Asian Pac J Cancer Prev 2014; 14:5189-92. [PMID: 24175799 DOI: 10.7314/apjcp.2013.14.9.5189] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AIM We aimed to investigate the associations of dietary intake of folate, vitamin B6 and B12 and MTHFR genotype with breast cancer in a Chinese population. METHODS A matched case-control study was conducted, and 435 patients with newly diagnosed and histologically confirmed breast cancer and 435 controls were collected. The folate intake, vitamin B6 and vitamin B12 were calculated, and MTHFR C665T, C677T and A1298C were analyzed by PCR-RFLP. RESULTS We found vitamin B12 was likely to reduce the risk of breast cancer, and MTHFR 665TT was associated with increased risk of breast cancer. Folate intake, vitamin B12 intake and variants of MTHFR C677T and MTHFR A1298C demonstrated no association with risk of breast cancer. However, we found patients with low intake of vitamin B6 and MTHFR 665TT genotype had a higher risk of breast cancer (OR=1.87, 95% CI=1.29-2.77), the association being less pronounced among subjects with a moderate intake of vitamin B6 and MTHFR 665TT genotype (OR=1.58, 95% CI=1.03-2.49, P=0.03). CONCLUSION Our study indicated that the MTHFR C665T polymorphism and vitamin B6 are associated with risk of breast cancer, which indicated roles for nutrients in developing breast cancer.
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Affiliation(s)
- Ying Liu
- The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China E-mail :
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Luo S, Guo L, Li Y, Wang S. Vitamin D receptor gene ApaI polymorphism and breast cancer susceptibility: a meta-analysis. Tumour Biol 2013; 35:785-90. [PMID: 24048755 DOI: 10.1007/s13277-013-1107-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Accepted: 08/12/2013] [Indexed: 01/12/2023] Open
Abstract
Vitamin D receptor (VDR) principally mediates the anticancer activities of vitamin D. Many studies investigated the association between VDR gene ApaI polymorphism and breast cancer, but the results were inconclusive. We performed this meta-analysis to evaluate the association between VDR gene ApaI polymorphism and breast cancer. Twelve studies with a total of 8,254 subjects were identified from PubMed and Wanfang databases. The pooled odds ratio (OR) and confidence intervals (95% CI) were used to assess the association. The meta-analysis indicated that VDR gene ApaI polymorphism was not associated with risk of breast cancer (a vs. A: OR = 0.97, 95% CI 0.91-1.04, P = 0.378; aa vs. AA: OR = 0.97, 95% CI 0.85-1.10, P = 0.618; aa vs. AA + Aa: OR = 1.00, 95% CI 0.89-1.12, P = 0.972; aa + Aa vs. AA: OR = 0.95, 95% CI 0.82-1.11, P = 0.550). Subgroup analysis by ethnicity further showed that VDR gene ApaI polymorphism was not associated with risk of breast cancer in both Asians and Caucasians. These data from the meta-analysis indicate that VDR gene ApaI polymorphism is not associated with breast cancer susceptibility.
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Affiliation(s)
- Shayang Luo
- Department of Breast Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China
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Association between vitamin D receptor gene Cdx2 polymorphism and breast cancer susceptibility. Tumour Biol 2013; 34:3437-41. [PMID: 23821301 DOI: 10.1007/s13277-013-0919-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2013] [Accepted: 06/11/2013] [Indexed: 12/14/2022] Open
Abstract
Vitamin D receptor (VDR) gene polymorphisms have been reported to influence susceptibility to breast cancer. However, published findings on the association between VDR Cdx2 polymorphism and breast cancer susceptibility are conflicting. To get a precise estimation of the association between VDR Cdx2 polymorphism and breast cancer susceptibility, we conducted a meta-analysis of four case-control studies with a total of 8,880 subjects (3,841 cases and 5,039 controls). The results showed that VDR Cdx2 polymorphism was not associated with risk of breast cancer (A versus G: OR = 0.96, 95% CI 0.84-1.09; AA versus GG: OR = 0.97, 95% CI 0.64-1.45; AA/GA versus GG: OR = 0.94, 95% CI 0.80-1.10; AA versus GG/GA: OR = 0.99, 95% CI 0.65-1.51). Subgroup analysis in Caucasians also showed that VDR Cdx2 polymorphism was not associated with risk of breast cancer in Caucasians. However, there was a significant association in Africans (A versus G: OR = 0.75, 95% CI 0.60-0.94; AA versus GG: OR = 0.53, 95% CI 0.29-0.99; AA/GA versus GG: OR = 0.75, 95% CI 0.57-0.97). Therefore, the association between VDR Cdx2 polymorphism and breast cancer susceptibility is only found in Africans. More studies are needed to further assess the association in Asians or Africans.
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