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He Q, Wei Y, Zhu H, Liang Q, Chen P, Li S, Song Y, Liu L, Wang B, Xu X, Dong Y. The combined effect of MTHFR C677T and A1298C polymorphisms on the risk of digestive system cancer among a hypertensive population. Discov Oncol 2024; 15:97. [PMID: 38565713 PMCID: PMC10987447 DOI: 10.1007/s12672-024-00960-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 03/29/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND AND PURPOSE The enzyme methylenetetrahydrofolate reductase (MTHFR) plays a crucial role in directing folate species towards nucleotide synthesis or DNA methylation. The MTHFR polymorphisms C677T and A1298C have been linked to cancer susceptibility, but the evidence supporting this association has been equivocal. To investigate the individual and joint associations between MTHFR C677T, A1298C, and digestive system cancer in a Chinese hypertensive population, we conducted a population-based case-control study involving 751 digestive system cancer cases and one-to-one matched controls from the China H-type Hypertension Registry Study (CHHRS). METHODS We utilized the conditional logistic regression model to evaluate multivariate odds ratios (ORs) and 95% confidence intervals (CIs) of digestive system cancer. RESULTS The analysis revealed a significantly lower risk of digestive system cancer in individuals with the CT genotype (adjusted OR: 0.71; 95% CI 0.52, 0.97; P = 0.034) and TT genotype (adjusted OR: 0.57; 95% CI 0.40, 0.82; P = 0.003; P for trend = 0.003) compared to those with the 677CC genotype. Although A1298C did not show a measurable association with digestive system cancer risk, further stratification of 677CT genotype carriers by A1298C homozygotes (AA) and heterozygotes (AC) revealed a distinct trend within these subgroups. CONCLUSION These findings indicate a potential protective effect against digestive system cancer associated with the T allele of MTHFR C677T. Moreover, we observed that the presence of different combinations of MTHFR polymorphisms may contribute to varying susceptibilities to digestive system cancer.
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Affiliation(s)
- Qiangqiang He
- Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen, No. 2279, Lishui Road. Nanshan District, Shenzhen, 518055, Guangdong, China
- Shenzhen Evergreen Medical Institute, Shenzhen, 518057, Guangdong, China
| | - Yaping Wei
- College of Public Health, Shanghai University of Medicine and Health Sciences, Shanghai, 201318, China
| | - Hehao Zhu
- School of Science, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Qiongyue Liang
- State Key Laboratory of Natural Medicines, Research Center of Biostatistics and Computational Pharmacy, China Pharmaceutical University, Nanjing, 211198, Jiangsu, China
| | - Ping Chen
- College of Pharmacy, Jinan University, Guangzhou, 510632, Guangdong, China
- Inspection and Testing Center, Key Laboratory of Cancer FSMP for State Market Regulation, Shenzhen, 518057, China
| | - Shuqun Li
- Department of Gastrointestinal Surgery/Clinical Nutrition, Capital Medical University Affiliated Beijing Shijitan Hospital, Beijing, 100038, China
| | - Yun Song
- Shenzhen Evergreen Medical Institute, Shenzhen, 518057, Guangdong, China
| | - Lishun Liu
- Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen, No. 2279, Lishui Road. Nanshan District, Shenzhen, 518055, Guangdong, China
- Shenzhen Evergreen Medical Institute, Shenzhen, 518057, Guangdong, China
- Guangdong Key Laboratory of H-Type Hypertension and Stroke Precision Prevention Research and Development Enterprise, Shenzhen, 518057, China
| | - Binyan Wang
- Shenzhen Evergreen Medical Institute, Shenzhen, 518057, Guangdong, China
- Institute of Biomedicine, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Xiping Xu
- National Clinical Research Center for Kidney Disease, State Key Laboratory for Organ Failure Research, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health, Guangdong Laboratory, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Yuhan Dong
- Shenzhen International Graduate School, Tsinghua University, University Town of Shenzhen, No. 2279, Lishui Road. Nanshan District, Shenzhen, 518055, Guangdong, China.
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Lack of Impact of the A1298C MTHFR on the Risk of Childhood Acute Lymphoblastic Leukemia: Evidence from a Meta-analysis. Indian J Hematol Blood Transfus 2021; 38:255-263. [PMID: 35496972 PMCID: PMC9001782 DOI: 10.1007/s12288-021-01453-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 05/15/2021] [Indexed: 10/21/2022] Open
Abstract
To clarify the effect of the A1298C variant of methylenetetrahydrofolate reductase (MTHFR) gene on the risk of acute lymphoblastic leukemia (ALL), an updated meta-analysis was performed. Electronic literature search was carried out in PubMed to collect relevant articles. Pooled odds ratios (OR) and stratification analysis were achieved under different genetic comparison models, age and ethnicity. A total of 46 articles including 7020 cases and 12,114 controls were enrolled. Overall, no significant association was observed for the MTHFR A1298C variant on the risk of ALL in any genetic model test, when all the studies pooled together (OR ~ 1 0.91; p > 0.05). In subgroup analyses stratified by age and ethnicity, the MTHFR A1298C reduce the risk of ALL in adult under allele contrast (OR = 0.88; [0.72; 1.09], p = 0.23) mainly in Caucasian populations. The present meta-analysis provides evidence that the A1298C variant of MTHFR gene is unlikely to be a major risk gene for childhood ALL.
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Frikha R. Assessment of the relationship between methylenetetrahydrofolate reductase polymorphism and acute lymphoblastic leukemia: Evidence from an updated meta-analysis. J Oncol Pharm Pract 2020; 26:1598-1610. [PMID: 32070201 DOI: 10.1177/1078155219900914] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The methylenetetrahydrofolate reductase gene C677T polymorphism is closely related to the acute lymphoblastic leukemia. Several case-control studies have investigated this association; however, no conclusions could be drawn. A comprehensive updated meta-analysis is established to explain these contradictions and clarify the overall impact of this variant on the susceptibility to acute lymphoblastic leukemia. METHODS Electronic searches were conducted to select published studies prior to June 2018. Pooled odds ratios and stratification analysis were performed under different genetic comparison models, age, and ethnicity. RESULTS Totally, 66 case-control studies including 9619 acute lymphoblastic leukemia cases and 17,396 controls were selected. Our analyses showed that methylenetetrahydrofolate reductase C677T polymorphism was protective mainly in Asian and European countries, under all genetic models and regardless of age, but leukemogenic in mixed population. CONCLUSION Thus, C677T polymorphism may be a promising acute lymphoblastic leukemia biomarker, but they should be interpreted with caution considering other factors such as folic acid intake, gene-gene and gene-environment interactions.
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Affiliation(s)
- Rim Frikha
- Faculty of Medicine, University of Sfax, Sfax-Tunisia.,Department of Medical Genetics, Hedi Chaker University Teaching Hospital, Sfax-Tunisia
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Wang SM, Zeng WX, Wu WS, Sun LL, Yan D. Association between MTHFR microRNA binding site polymorphisms and methotrexate concentrations in Chinese pediatric patients with acute lymphoblastic leukemia. J Gene Med 2017; 19:353-359. [PMID: 28990296 DOI: 10.1002/jgm.2990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 09/17/2017] [Accepted: 09/27/2017] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND The pharmacokinetics and therapeutic response to methotrexate (MTX) display large variability in the treatment of acute lymphoblastic leukemia (ALL). The aim of the present study was to investigate the association of two microRNA (miRNA) binding site polymorphisms (rs3737966 G > A and rs35134728 DEL/TTC) in the 3'-untranslated region of MTHFR with serum MTX concentrations, in a Chinese pediatric population with ALL. METHODS Genotyping for MTHFR rs3737966 and rs35134728 in 144 children with ALL was performed using the Sequenom MassArray system (Sequenom, San Diego, CA, USA). Serum MTX concentrations were measured by a fluorescence polarization immunoassay 24 h (C24h ) and 42 h (C42h ) after administration. The effects of the polymorphisms on concentration-to-dose (C/D) ratios of MTX were assessed. RESULTS Complete linkage disequilibrium between rs3737966 and rs35134728 polymorphisms (r2 = 1) was found in the study population. The minor allele frequency observed in the present study (17.4%) was significantly lower than those in European and African samples reported in the 1000 Genomes Project (42.9% and 63.9%, respectively; p < 0.01). The C/D ratios of MTX at 24 and 42 h for the TTC/TTC-A/A haplotype carriers (11.74 and 0.07 μmol/l per g/m2 , respectively) were significantly lower than those in DEL/DEL-G/G or DEL/TTC-G/G haplotype carriers (12.49 and 0.09 μmol/l per g/m2 , respectively; p < 0.05). Computational predictions suggested that the two polymorphisms overlapped with putative binding sites of several miRNAs. CONCLUSIONS The rs3737966 and rs35134728 polymorphisms in MTHFR were associated with serum MTX concentrations. The findings of the present study indicate that miRNAs might be involved in the post-transcriptional regulation of MTHFR.
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Affiliation(s)
- Shu-Mei Wang
- Department of Pharmacy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Wei-Xin Zeng
- Department of Pharmacy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Wan-Shui Wu
- Department of Pediatrics, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Lu-Lu Sun
- Department of Pharmacy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Dan Yan
- Department of Pharmacy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
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Karimian M, Hosseinzadeh Colagar A. Human MTHFR-G1793A transition may be a protective mutation against male infertility: a genetic association study and in silico analysis. HUM FERTIL 2017; 21:128-136. [DOI: 10.1080/14647273.2017.1298161] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mohammad Karimian
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
| | - Abasalt Hosseinzadeh Colagar
- Department of Molecular and Cell Biology, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
- Nano and Biotechnology Research Group, Faculty of Basic Sciences, University of Mazandaran, Babolsar, Iran
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Xia X, Duan Y, Cui J, Jiang J, Lin L, Peng X, Wang Y, Guo B, Liu S, Lei X. Association of methylenetetrahydrofolate reductase gene-gene interaction and haplotype with susceptibility to acute lymphoblastic leukemia in Chinese children. Leuk Lymphoma 2016; 58:1887-1892. [PMID: 27996344 DOI: 10.1080/10428194.2016.1265117] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The aim of this study was to investigate the association of methylenetetrahydrofolate reductase (MTHFR) gene polymorphism and additional gene-gene interaction with acute lymphoblastic leukemia (ALL) risk. Logistic regression was performed to investigate the association between two single nucleotide polymorphisms (SNPs) within MTHFR gene and ALL risk and additional gene-gene interaction between rs1801133 and rs1801131. The minor allele of rs1801133 and rs1801131 is associated with decreased ALL risk, OR (95% CI) were 0.61 (0.38-0.89), and 0.68 (0.50-0.96), respectively. We also found a significantly interaction between the two SNPs, participants with rs1801133 - CT or TT and rs1801131 - AC or CC genotype have the lowest ALL risk, compared with participants with rs1801133 - CC and rs1801131 - AA genotype, OR (95% CI) was 0.32 (0.12-0.63). We did not find any haplotype between the rs1801133 and rs1801131 associated with ALL risk. rs1801133 and rs1801131 within MTHFR gene and their interaction were both associated with ALL risk in Chinese children.
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Affiliation(s)
- Xiaojun Xia
- a Department of Hematology , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
| | - Yun Duan
- a Department of Hematology , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
| | - Jie Cui
- a Department of Hematology , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
| | - Junfeng Jiang
- a Department of Hematology , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
| | - Li Lin
- a Department of Hematology , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
| | - Xiaojuan Peng
- a Department of Hematology , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
| | - YuHong Wang
- a Department of Hematology , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
| | - Bingtao Guo
- a Department of Hematology , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
| | - Shouhai Liu
- a Department of Hematology , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
| | - Xudong Lei
- b Department of Pharmacy , Tumor Hospital of Gansu Province , Lanzhou , Gansu , China
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Tong N, Chu H, Wang M, Xue Y, Du M, Lu L, Zhang H, Wang F, Fang Y, Li J, Wu D, Zhang Z, Sheng X. Pri-miR-34b/c rs4938723 polymorphism contributes to acute lymphoblastic leukemia susceptibility in Chinese children. Leuk Lymphoma 2015; 57:1436-41. [DOI: 10.3109/10428194.2015.1092528] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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The association of methylenetetrahydrofolate reductase genotypes with the risk of childhood leukemia in Taiwan. PLoS One 2015; 10:e0119776. [PMID: 25793509 PMCID: PMC4368437 DOI: 10.1371/journal.pone.0119776] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 02/03/2015] [Indexed: 12/17/2022] Open
Abstract
Background Acute lymphoblastic leukemia (ALL) is the most prevalent type of pediatric cancer, the causes of which are likely to involve an interaction between genetic and environmental factors. To evaluate the effects of the genotypic polymorphisms in methylenetetrahydrofolate reductase (MTHFR) on childhood ALL risk in Taiwan, two well-known polymorphic genotypes of MTHFR, C677T (rs1801133) and A1298C (rs1801131), were analyzed to examine the extent of their associations with childhood ALL susceptibility and to discuss the MTHFR genotypic contribution to childhood ALL risk among different populations. Methodology/Principal Findings In total, 266 patients with childhood ALL and an equal number of non-cancer controls recruited were genotyped utilizing PCR-RFLP methodology. The MTHFR C677T genotype, but not the A1298C, was differently distributed between childhood ALL and control groups. The CT and TT of MTHFR C677T genotypes were significantly more frequently found in controls than in childhood ALL patients (odds ratios=0.60 and 0.48, 95% confidence intervals=0.42–0.87 and 0.24–0.97, respectively). As for gender, the boys carrying the MTHFR C677T CT or TT genotype conferred a lower odds ratio of 0.51 (95% confidence interval=0.32–0.81, P=0.0113) for childhood ALL. As for age, those equal to or greater than 3.5 years of age at onset of disease carrying the MTHFR C677T CT or TT genotype were of lower risk (odds ratio= 0.43 and 95% confidence interval=0.26–0.71, P=0.0016). Conclusions Our results indicated that the MTHFR C677T T allele was a protective biomarker for childhood ALL in Taiwan, and the association was more significant in male patients and in patients 3.5 years of age or older at onset of disease.
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Li SY, Ye JY, Liang EY, Zhou LX, Yang M. Association between MTHFR C677T polymorphism and risk of acute lymphoblastic leukemia: a meta-analysis based on 51 case-control studies. Med Sci Monit 2015; 21:740-8. [PMID: 25761797 PMCID: PMC4368066 DOI: 10.12659/msm.892835] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background Studies and systematic reviews have reached inconsistent conclusions on the role of 5, 10-methylenetetrahydrofolate reductase (MTHFR) polymorphism C677T in acute lymphoblastic leukemia (ALL) risk. Material/Methods The present meta-analysis comprising of 51 case-control studies, including 7892 cases and 14 280 controls was performed to reevaluate the association between MTHFR C677T polymorphism and ALL risk. Results Statistical differences were found in the dominant model (TT+CT vs. CC, odd ratio (OR)=0.89, 95% CI, 0.79–1.00, P=0.04) and the CT vs. CC (OR=0.89, 95% CI, 0.80–1.00, P=0.05), but not in the allele contrast model (T vs. C, OR=0.92, 95% CI, 0.84–1.01, P=0.08), additive model (TT vs. CC, OR=0.87, 95% CI, 0.73–1.05, P=0.15), or recessive model (TT vs. CT+CC, OR=0.94, 95% CI, 0.81–1.10, P=0.44) in overall populations. In the subgroup analyses stratified by age (children and adults) and ethnicity (Asian and Caucasian), no significant associations between MTHFR C677T polymorphism and ALL risk were observed. Conclusions The current study found no sufficient evidence of a protective role of MTHFR C677T polymorphism in ALL susceptibility.
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Affiliation(s)
- Su-yi Li
- Laboratory of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
| | - Jie-yu Ye
- Laboratory of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
| | - En-yu Liang
- Laboratory of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
| | - Li-xia Zhou
- Laboratory of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
| | - Mo Yang
- Laboratory of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China (mainland)
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Milne E, Greenop KR, Scott RJ, Haber M, Norris MD, Attia J, Jamieson SE, Miller M, Bower C, Bailey HD, Dawson S, McCowage GB, de Klerk NH, van Bockxmeer FM, Armstrong BK. Folate pathway gene polymorphisms, maternal folic acid use, and risk of childhood acute lymphoblastic leukemia. Cancer Epidemiol Biomarkers Prev 2015; 24:48-56. [PMID: 25395472 DOI: 10.1158/1055-9965.epi-14-0680] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Several studies suggest that maternal folic acid supplementation before or during pregnancy protects against childhood acute lymphoblastic leukemia (ALL). We investigated associations between ALL risk and folate pathway gene polymorphisms, and their modification by maternal folic acid supplements, in a population-based case-control study (2003-2007). METHODS All Australian pediatric oncology centers provided cases; controls were recruited by national random digit dialing. Data from 392 cases and 535 controls were included. Seven folate pathway gene polymorphisms (MTHFR 677C>T, MTHFR 1298A>C, MTRR 66A>G, MTR 2756 A>G, MTR 5049 C>A, CBS 844 Ins68, and CBS 2199 T>C) were genotyped in children and their parents. Information on prepregnancy maternal folic acid supplement use was collected. ORs were estimated with unconditional logistic regression adjusted for frequency-matched variables and potential confounders. Case-parent trios were also analyzed. RESULTS There was some evidence of a reduced risk of ALL among children who had, or whose father had, the MTRR 66GG genotype: ORs 0.60 [95% confidence interval (CI) 0.39-0.91] and 0.64 (95% CI, 0.40-1.03), respectively. The ORs for paternal MTHFR 677CT and TT genotypes were 1.41 (95% CI, 1.02-1.93) and 1.81 (95% CI, 1.06-3.07). ORs varied little by maternal folic acid supplementation. CONCLUSIONS Some folate pathway gene polymorphisms in the child or a parent may influence ALL risk. While biologically plausible, underlying mechanisms for these associations need further elucidation. IMPACT Folate pathway polymorphisms may be related to risk of childhood ALL, but larger studies are needed for conclusive results.
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Affiliation(s)
- Elizabeth Milne
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia.
| | - Kathryn R Greenop
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
| | - Rodney J Scott
- Hunter Medical Research Institute, John Hunter Hospital, New Lambton, New South Wales, Australia. School of Biomedical Sciences and Pharmacy, Faculty of Health, University of Newcastle, Newcastle, New South Wales, Australia. Hunter Area Pathology Service, HNEHealth, Newcastle, New South Wales, Australia
| | - Michelle Haber
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, University of New South Wales, Sydney, New South Wales, Australia
| | - Murray D Norris
- Children's Cancer Institute Australia for Medical Research, Lowy Cancer Research Centre, University of New South Wales, Sydney, New South Wales, Australia
| | - John Attia
- Hunter Medical Research Institute, John Hunter Hospital, New Lambton, New South Wales, Australia. School of Medicine and Public Health, Faculty of Health and Medicine, University of Newcastle, Newcastle, New South Wales, Australia
| | - Sarra E Jamieson
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
| | - Margaret Miller
- School of Exercise and Health Sciences, Edith Cowan University, Mount Lawley, Western Australia, Australia
| | - Carol Bower
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
| | - Helen D Bailey
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia. Section of Environment and Radiation, International Agency for Research on Cancer, Lyon, France
| | - Somer Dawson
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
| | | | - Nicholas H de Klerk
- Telethon Kids Institute, University of Western Australia, Perth, Western Australia, Australia
| | - Frank M van Bockxmeer
- Department of Clinical Biochemistry, Royal Perth Hospital and the School of Surgery, University of Western Australia, Perth, Western Australia, Australia
| | - Bruce K Armstrong
- Sax Institute, Haymarket, New South Wales, Australia. Sydney School of Public Health, University of Sydney, Sydney, New South Wales, Australia
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Deng J, Xue Y, Wang Y, Chen J, Li J, Lu Q, Wang M, Tong N, Zhang Z, Fang Y. 10p12.31-12.2 variants and risk of childhood acute lymphoblastic leukemia in a Chinese population. Leuk Lymphoma 2014; 56:175-8. [PMID: 24707948 DOI: 10.3109/10428194.2014.910775] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Acute lymphoblastic leukemia (ALL) is a clonal hematologic disease, and is the most common cause of childhood malignancy. Recently, a new locus was identified at 10p12.31-12.2 through a genome-wide association study (GWAS) that included racially and ethnically diverse populations. We conducted a replication study with 570 cases of ALL and 673 cancer-free controls to validated the association of this locus with ALL susceptibility in a Chinese population. The results of our study confirmed that the 10p12.31-12.2 locus was linked to childhood ALL susceptibility in the Chinese population. Interestingly, we also found that the single nucleotide polymorphisms (SNPs) in this locus had a larger effect on susceptibility to high-risk ALL than on susceptibility to low-risk ALL.
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Affiliation(s)
- Jianping Deng
- Department of Hematology and Oncology, Nanjing Children's Hospital Affiliated to Nanjing Medical University , Nanjing , China
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Roy Moulik N, Parveen F, Kumar A, Awasthi S, Agrawal S. MTHFR gene polymorphism in acute lymphoblastic leukemia among North Indian children: a case-control study and meta-analysis updated from 2011. J Hum Genet 2014; 59:397-404. [PMID: 24919644 DOI: 10.1038/jhg.2014.44] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 03/13/2014] [Accepted: 04/27/2014] [Indexed: 11/09/2022]
Abstract
Studies on the association of methylenetetrahydrofolate reductase (MTHFR) genotype in childhood acute lymphoblastic leukemia (ALL) have yielded conflicting results. The present study examines this association in north Indian children with ALL and includes an updated meta-analysis. MTHFR (677 and 1298) genotype of children with ALL and healthy adult controls were done by the PCR-restriction fragment length polymorphism (PCR-RFLP) method and were compared using various models of inheritance. A total of 150 patients and 300 controls were included. The 677T allele was found protective (odds ratio (OR) 0.21, 95% confidence interval (CI) 0.04-0.94), whereas 1298C allele led to an increase in risk (OR 4.44, 95% CI 2.19-8.99) of childhood ALL. Meta-analysis included 31 and 27 studies examining the association of 677 and 1298 genotypes, respectively. The 677 C -> T polymorphism was protective (OR 0.90, 95% CI 0.82-0.99). Protection was more pronounced in folate-sufficient populations as compared with those not covered by folate fortification guidelines. The 1298A->C polymorphism was associated with a marginal increase in risk (OR 1.19, 95% CI 1.01-1.40).
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Affiliation(s)
- Nirmalya Roy Moulik
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, King George's Medical University, Lucknow, India
| | - Farah Parveen
- Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Archana Kumar
- Division of Pediatric Hematology-Oncology, Department of Pediatrics, King George's Medical University, Lucknow, India
| | - Shally Awasthi
- Department of Pediatrics, King George's Medical University, Lucknow, India
| | - Suraksha Agrawal
- Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
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Shi R, Zhao Z, Zhou H, Zhou J, Tan W. Lack of association between MTHFR Ala222Val and Glu429Ala polymorphisms and bladder cancer risk: A meta-analysis of case-control studies. Biomed Rep 2014; 2:396-403. [PMID: 24748982 PMCID: PMC3990203 DOI: 10.3892/br.2014.258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Accepted: 03/11/2014] [Indexed: 12/26/2022] Open
Abstract
Bladder cancer is a commom malignancy in the urinary tract that is influenced by genetic and environmental factors. The role of functional polymorphisms in the methylenetetrahydrofolate reductase (MTHFR) gene with bladder cancer risk remains to be determined. This meta-analysis was performed to derive a more precise estimation of MTHFR Ala222Val and Glu429Ala polymorphisms and bladder cancer risk. Data were collected with the last report up to September 2013. A total of 3,463 cases and 3,927 controls for Ala222Val, and 3,177 cases and 3,502 controls for Glu429Ala were analyzed. The pooled odds ratios (ORs) and 95% confidence interval (CI) were estimated for the association with bladder cancer risk. Overall, no significant associations of Ala222Val and Glu429Ala polymorphisms with bladder cancer risk were found (for Ala222Val: Val/Val vs. Ala/Ala: OR, 1.02; 95% CI: 0.80–1.29; Val/Ala vs. Ala/Ala: OR, 1.02; 95% CI: 0.92–1.12; dominant model: OR, 1.01; 95% CI: 0.87–1.17; recessive model: OR, 1.00; 95% CI: 0.87–1.15; and for Glu429Ala: Ala/Ala vs. Glu/Glu: OR, 1.11; 95% CI: 0.78–1.58; Ala/Glu vs. Glu/Glu: OR, 1.16; 95% CI: 0.95–1.40; dominant model: OR, 1.15; 95% CI: 0.94–1.41; recessive model: OR, 0.96; 95% CI: 0.79–1.15). In stratified analyses by ethnicity, significant associations were observed for Glu429Ala polymorphism in individuals of Middle Eastern descent (Ala/Glu vs. Glu/Glu: OR, 2.11; 95% CI: 1.26–3.53; dominant model: OR, 2.16; 95% CI: 1.16–4.01; recessive model: OR, 1.82; 95% CI: 1.11–3.01). This meta-analysis demonstrated that overall there was no association of MTHFR Ala222Val and Glu429Ala polymorphisms with bladder cancer risk. However, in the stratified analysis by ethnicity the MTHFR Glu429Ala polymorphism was significantly associated with increased bladder cancer risk in individuals of Middle Eastern descent.
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Affiliation(s)
- Rong Shi
- Institute of Genetic Engineering, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zhen Zhao
- Department of Urinary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Hui Zhou
- Institute of Genetic Engineering, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Jueyu Zhou
- Institute of Genetic Engineering, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Wanlong Tan
- Department of Urinary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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Li X, Liao Q, Zhang S, Chen M. Association of methylenetetrahytrofolate reductase (MTHFR) C677T and A1298C polymorphisms with the susceptibility of childhood acute lymphoblastic leukaemia (ALL) in Chinese population. Eur J Med Res 2014; 19:5. [PMID: 24476575 PMCID: PMC3932997 DOI: 10.1186/2047-783x-19-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2013] [Accepted: 01/13/2014] [Indexed: 11/11/2022] Open
Abstract
Background The aim of this study was to investigate the relationship between the polymorphisms of the methylenetetrahytrofolate reductase (MTHFR) gene and susceptibility to childhood acute lymphoblastic leukemia (ALL). Methods A case–control study was conducted among 98 children with ALL and 93 age- and sex- matched non-ALL controls. Genotyping of MTHFR C677T and A1298C polymorphisms was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The odds ratios (ORs) of MTHFR genotypes were used to assess the associations of these polymorphisms with childhood ALL susceptibility. Results No significant differences were observed for frequencies of the 677CC, 677CT and 677TT genotypes between patients and controls. Frequencies of the 1298AA, 1298 AC and 1298CC genotypes between the two groups were significantly different. The risk of ALL with the 1298C allele carriers (AC + CC) was elevated by 1.1 times compared with the AA genotype [OR = 2.100; 95% CI (1.149; 3.837); P = 0.015]. Conclusions The MTHFR A1298C polymorphism is associated with susceptibility to childhood ALL in the Chinese population.
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Affiliation(s)
| | | | | | - Minling Chen
- Department of Pharmacy, Shanghai Children's Medical Center, Shanghai Jiaotong University School of Medicine, 1678 Dongfang Road, Pudong, Shanghai 200127, China.
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Xiao Y, Deng TR, Su CL, Shang Z. Methylenetetrahydrofolate Reductase Polymorphisms and Susceptibility to Acute Lymphoblastic Leukemia in a Chinese Population: A Meta-Analysis. Oncol Res Treat 2014; 37:576-82. [DOI: 10.1159/000368104] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 08/18/2014] [Indexed: 11/19/2022]
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16
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Tong N, Xu B, Shi D, Du M, Li X, Sheng X, Wang M, Chu H, Fang Y, Li J, Wu D, Zhang Z. Hsa-miR-196a2 polymorphism increases the risk of acute lymphoblastic leukemia in Chinese children. Mutat Res 2014; 759:16-21. [PMID: 24291415 DOI: 10.1016/j.mrfmmm.2013.11.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 10/30/2013] [Accepted: 11/20/2013] [Indexed: 06/02/2023]
Abstract
Acute lymphoblastic leukemia (ALL) is a major cause of mortality and morbidity in childhood, and the causes of ALL are not completely understood. microRNAs (miRNAs) regulate various biological processes including organ development, cell growth regulation, cell differentiation, apoptosis, and tumorigenesis. We performed a case-control study with 570 childhood ALL cases and 673 cancer-free controls to investigate the association between hsa-miR-196a2 rs11614913 T>C polymorphism and ALL risk. The bioinformatics was used to estimate the potential target of hsa-miR-196a2. In the present study, the hsa-miR-196a2 variant TC heterozygote, and CC/TC genotypes were found to be associated with a significantly increased childhood ALL risk, compared with the TT wild-type homozygote (adjusted OR=1.50, 95% CI=1.15-1.95 for TC and OR=1.40, 95% CI=1.09-1.79 for CC/TC). Further, the difference was pronounced in younger (≤6) subjects or parental non-drinker. The significance of the increased risk is more obvious than the higher treatment branch. Additionally, we found that the rs11614913 TC genotype can increase B-phenotype ALL risk (OR=1.37, 95% CI=1.07-1.76). Finally, combination of three bioinformatics approaches revealed that HOXC8 may be the target gene of hsa-miR-196a2. Taken together, our finding suggested that hsa-miR-196a2 rs11614913 T>C may increase the risk of childhood ALL. Large studies with the function of hsa-miR-196a2 are needed in the further study.
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Affiliation(s)
- Na Tong
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Bin Xu
- Surgical Research Center, Medical School, Southeast University, Nanjing, China
| | - Danni Shi
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Mulong Du
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xin Li
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiaojing Sheng
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Meilin Wang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Haiyan Chu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yongjun Fang
- Department of Hematology and Oncology, The Affiliated Nanjing Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Jie Li
- Department of Hematology and Oncology, Soochow Children's Hospital Affiliated to Soochow University, Suzhou, China
| | - Dongmei Wu
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhengdong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing, China; Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China.
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Jiang Y, Hou J, Zhang Q, Jia ST, Wang BY, Zhang JH, Tang WR, Luo Y. The MTHFR C677T Polymorphism and Risk of Acute Lymphoblastic Leukemia: an Updated Meta-analysis Based on 37 Case-control Studies. Asian Pac J Cancer Prev 2013; 14:6357-62. [DOI: 10.7314/apjcp.2013.14.11.6357] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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18
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Wang H, Meng L, Zhao L, Wang J, Liu X, Mi W. Methylenetetrahydrofolate Reductase Polymorphism C677T Is a Protective Factor for Pediatric Acute Lymphoblastic Leukemia in the Chinese Population: A Meta-Analysis. Genet Test Mol Biomarkers 2012; 16:1401-7. [PMID: 23061880 DOI: 10.1089/gtmb.2012.0184] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Haigang Wang
- Department of Pharmacy, Qilu Hospital, Shandong University, Jinan, China
- College of Pharmacy, Shandong University, Jinan, China
| | - Lujing Meng
- Department of Emergency, Qilu Hospital, Shandong University, Jinan, China
| | - Lixia Zhao
- Department of Pharmacy, Qilu Hospital, Shandong University, Jinan, China
- College of Pharmacy, Shandong University, Jinan, China
| | - Jiali Wang
- Department of Emergency, Qilu Hospital, Shandong University, Jinan, China
| | - Xinchun Liu
- Department of Pharmacy, Qilu Hospital, Shandong University, Jinan, China
| | - Wenjie Mi
- Department of Pharmacy, Qilu Hospital, Shandong University, Jinan, China
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19
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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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20
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Sheng X, Tong N, Tao G, Luo D, Wang M, Fang Y, Li J, Xu M, Zhang Z, Wu D. TERT polymorphisms modify the risk of acute lymphoblastic leukemia in Chinese children. Carcinogenesis 2012; 34:228-35. [PMID: 23066086 DOI: 10.1093/carcin/bgs325] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Human telomerase reverse transcriptase (TERT) is essential for the maintenance of telomere DNA length, chromosomal stability and cellular immortality. We hypothesized that TERT polymorphisms are associated with risk of childhood acute lymphoblastic leukemia (ALL). We first conducted a case-control study of 570 ALL cases and 673 cancer-free controls of Chinese children, using the tagging single-nucleotide polymorphisms (tSNPs) approach. We then examined the functionality of the important SNPs. We found that TERT promoter region tSNP (rs2735940) and two intron region tSNPs (rs2736100 and rs10069690) were associated with risk of childhood ALL (P = 0.036, 0.011 and 0.022, respectively, in allele comparison). The in vitro luciferase assays in Jurkat cells showed an increased transcriptional activity of rs2735940 T allele compared with the C allele. Additional experiments with ALL bone marrow revealed that the rs2735940 T allele increased levels of the TERT messenger RNA. Notably, TERT intron 2 polymorphism (rs2736100) was associated with lower telomerase activity and longer telomeres. Our findings suggested that TERT promoter rs2735940 polymorphism may affect the TERT activity, and rs2736100 may be associated with telomere function, and thus, it is a potential biomarker for genetic susceptibility to ALL in Chinese children.
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Affiliation(s)
- Xiaojing Sheng
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Cancer Center, Nanjing Medical University, Nanjing 211166, China
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Wang H, Wang J, Zhao L, Liu X, Mi W. Methylenetetrahydrofolate reductase polymorphisms and risk of acute lymphoblastic leukemia-evidence from an updated meta-analysis including 35 studies. BMC MEDICAL GENETICS 2012; 13:77. [PMID: 22943282 PMCID: PMC3459788 DOI: 10.1186/1471-2350-13-77] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 08/27/2012] [Indexed: 11/25/2022]
Abstract
Background 5,10-methylenetetrahydrofolate reductase (MTHFR) variants, C677T and A1298C, have been reported to be associated with decreased risk of acute lymphoblastic leukemia (ALL). However, results derived from individually underpowered studies are conflicting. We carried out an updated meta-analysis on the association between MTHFR polymorphisms and ALL risk. Methods Relevant publications were searched through PUBMED and EMBASE databases. The associations between MTHFR C677T and A1298C polymorphisms and the risk of ALL were evaluated by odds ratios (ORs). The heterogeneity and publication bias were estimated. Meta-regression analysis was performed to evaluate the potential sources of heterogeneity. Results C677T polymorphism was associated with a reduced risk of ALL (allele contrast: ORRE = 0.91, 95% CI: 0.83-0.99). Subgroup analysis showed MTHFR C677T variant was associated with decreased susceptibility to ALL in children and Caucasians. Meta-regression showed the logOR for the association between T allele and ALL increased as sex ratio (M/F) in the case group increased (P = 0.01). Regarding A1298C polymorphism, no significant association was observed (allele contrast: ORRE = 1.01, 95% CI: 0.91-1.11). There was no publication bias for C677T or A1298C polymorphism. Conclusions The present meta-analysis suggests that the C677T polymorphism, not A1298C, in MTHFR gene is associated with a decreased risk of ALL, particularly among children and Caucasians subjects. Our findings suggest that the influence of the C677T polymorphism on ALL susceptibility is modified by sex ratio in cases (M/F). Since folate intake may be a possible confounding factor, including this factor in future prospective studies is warranted. Further meta-analysis studies should be at least stratified for folate levels and gender to give more powerful and informative results.
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Affiliation(s)
- Haigang Wang
- Pharmacy Intravenous Admixture Services, Qilu Hospital, Shandong University, 44 Wenhuaxi Road, Jinan, 250012, China
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22
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Amigou A, Rudant J, Orsi L, Goujon-Bellec S, Leverger G, Baruchel A, Bertrand Y, Nelken B, Plat G, Michel G, Haouy S, Chastagner P, Ducassou S, Rialland X, Hémon D, Clavel J. Folic acid supplementation, MTHFR and MTRR polymorphisms, and the risk of childhood leukemia: the ESCALE study (SFCE). Cancer Causes Control 2012; 23:1265-77. [PMID: 22706675 DOI: 10.1007/s10552-012-0004-0] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Accepted: 05/24/2012] [Indexed: 02/06/2023]
Abstract
PURPOSE Fetal folate deficiency may increase the risk of subsequent childhood acute leukemia (AL), since folates are required for DNA methylation, synthesis, and repair, but the literature remains scarce. This study tested the hypothesis that maternal folic acid supplementation before or during pregnancy reduces AL risk, accounting for the SNPs rs1801133 (C677T) and rs1801131 (A1298C) in MTHFR and rs1801394 (A66G) and rs1532268 (C524T) in MTRR, assumed to modify folate metabolism. METHODS The nationwide registry-based case-control study, ESCALE, carried out in 2003-2004, included 764 AL cases and 1,681 controls frequency matched with the cases on age and gender. Information on folic acid supplementation was obtained by standardized telephone interview. The genotypes were obtained using high-throughput platforms and imputation for untyped polymorphisms. Odds ratios (OR) were estimated using unconditional regression models adjusted for potential confounders. RESULTS AL was significantly inversely associated with maternal folic acid supplementation before and during pregnancy (OR = 0.4; 95 % confidence interval: [0.3-0.6]). MTHFR and MTRR genetic polymorphisms were not associated with AL. However, AL was positively associated with homozygosity for any of the MTHFR polymorphisms and carriership of both MTRR variant alleles (OR = 1.6 [0.9-3.1]). No interaction was observed between MTHFR, MTRR, and maternal folate supplementation. CONCLUSION The study findings support the hypothesis that maternal folic acid supplementation may reduce the risk of childhood AL. The findings also suggest that the genotype homozygous for any of the MTHFR variants and carrying both MTRR variants could be a risk factor for AL.
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Affiliation(s)
- Alicia Amigou
- Environmental Epidemiology of Cancer, INSERM U1018, Villejuif, France.
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Yan J, Yin M, Dreyer ZE, Scheurer ME, Kamdar K, Wei Q, Okcu MF. A meta-analysis of MTHFR C677T and A1298C polymorphisms and risk of acute lymphoblastic leukemia in children. Pediatr Blood Cancer 2012; 58:513-8. [PMID: 21495160 DOI: 10.1002/pbc.23137] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Accepted: 03/01/2011] [Indexed: 11/10/2022]
Abstract
BACKGROUND Methylenetetrahydrofolate reductase (MTHFR) C677T and A1298C polymorphisms have been implicated in childhood acute lymphoblastic leukemia (ALL) risk, but previously published studies were inconsistent and recent meta-analyses were not adequate. PROCEDURES In a meta-analysis of 21 publications with 4,706 cases and 7,414 controls, we used more stringent inclusion method and summarized data on associations between MTHFR C677T and A1298C polymorphisms and childhood ALL risk. RESULTS We found an overall association between 677T variant genotypes and reduced childhood ALL risk. Specifically, in the dominant genetic model, an association was found in a fixed-effect (TT + CT vs. CC: OR = 0.92; 95% CI = 0.85-0.99) but not random-effect model, whereas such an association was observed in both homozygote genetic model (TT vs. CC: OR = 0.80; 95% CI = 0.70-0.93 by fixed effects and OR = 0.78; 95% CI = 0.65-0.93 by random effects) and recessive genetic model (TT vs. CC + CT: OR = 0.83; 95% CI = 0.72-0.95 by fixed effects and OR = 0.84; 95% CI = 0.73-0.97 by random effects). These associations were also observed in subgroups by ethnicity: for Asians in all models except for the dominant genetic model by random effect and for Caucasians in all models except for the recessive genetic model. However, the A1298C polymorphism did not appear to have an effect on childhood ALL risk. CONCLUSIONS These results suggest that the MTHFR C677T, but not A1298C, polymorphism is a potential biomarker for childhood ALL risk.
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Affiliation(s)
- Jingrong Yan
- Department of Pediatrics, Texas Children's Cancer Center, Baylor College of Medicine, Houston, Texas 77030, USA
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Sheng X, Zhang L, Luo D, Tong N, Wang M, Fang Y, Li J, Zhang Z. A common variant nearTERCand telomere length are associated with susceptibility to childhood acute lymphoblastic leukemia in Chinese. Leuk Lymphoma 2012; 53:1688-92. [DOI: 10.3109/10428194.2012.671482] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Tong N, Zhang L, Sheng X, Wang M, Zhang Z, Fang Y, Xue Y, Li J, Zhang Z. Functional polymorphisms in FAS, FASL and CASP8 genes and risk of childhood acute lymphoblastic leukemia: a case-control study. Leuk Lymphoma 2012; 53:1360-6. [PMID: 22211869 DOI: 10.3109/10428194.2011.654117] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Genetic polymorphisms in the promoter regions of FAS, FASL and CASP8 involved in the apoptotic signaling pathway are thought to be associated with susceptibility to cancer. We hypothesized that these functional genetic variants might be associated with the risk of childhood acute lymphoblastic leukemia (ALL). A case-control study in a Chinese population with 361 cases of ALL and 519 controls was performed to evaluate the association between FAS, FASL and CASP8 variants and risk of childhood ALL. Individuals with FAS - 1377AG had an odds ratio (OR) of 0.72 for the risk of ALL compared to - 1377GG and the variant FASL - 844CC was associated with a statistically significantly decreased risk of childhood ALL (OR = 0.38). Furthermore, combined genotypes with 5-8 protective alleles were associated with a significantly decreased risk of childhood ALL compared with those with 0-4 variants, and this decreased risk was more pronounced among the subgroups of age < 6 years, female, parental never-drinking status and never house-painting. Our results provide evidence that FAS-FASL-CASP8 polymorphisms contributed to a reduced risk of childhood ALL in our population. Larger studies are warranted to validate our findings.
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Affiliation(s)
- Na Tong
- Department of Molecular and Genetic Toxicology, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, China
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Han Y, Pan Y, Du Y, Tong N, Wang M, Zhang Z, Wan L, Wang L. Methylenetetrahydrofolate Reductase C677T and A1298C Polymorphisms and Nonsyndromic Orofacial Clefts Susceptibility in a Southern Chinese Population. DNA Cell Biol 2011; 30:1063-8. [DOI: 10.1089/dna.2010.1185] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Yue Han
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yongchu Pan
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yifei Du
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
| | - Na Tong
- Department of Epidemiology, Nanjing Medical University, Nanjing, China
| | - Meilin Wang
- Department of Epidemiology, Nanjing Medical University, Nanjing, China
| | - Zhengdong Zhang
- Department of Epidemiology, Nanjing Medical University, Nanjing, China
| | - Linzhong Wan
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
| | - Lin Wang
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
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Variants of the MTHFR gene and susceptibility to acute lymphoblastic leukemia in children: a synthesis of genetic association studies. Cancer Epidemiol 2011; 36:169-76. [PMID: 22094326 DOI: 10.1016/j.canep.2011.10.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2011] [Revised: 10/11/2011] [Accepted: 10/12/2011] [Indexed: 11/21/2022]
Abstract
BACKGROUND Acute lymphoblastic leukemia (ALL) is a complex disease with genetic background. The genetic association studies (GAS) that investigated the association between ALL and the MTHFR C677T and A1298C gene variants have produced contradictory or inconclusive results. MATERIALS AND METHODS In order to decrease the uncertainty of estimated genetic risk effects, a meticulous meta-analysis of published GAS related the variants in the MTFHR gene with susceptibility to ALL was conducted. The risk effects were estimated based on the odds ratio (OR) of the allele contrast and the generalized odds ratio (OR(G)). Cumulative and recursive cumulative meta-analyses were also performed. RESULTS The analysis showed marginal significant association for the C677T variant, overall [OR=0.91 (0.82-1.00) and OR(G)=0.89 (0.79-1.01)], and in Whites [OR=0.88 (0.77-0.99) and OR(G)=0.85 (0.73-0.99)]. The A1298C variant produced non-significant results. For both variants, the cumulative meta-analysis did not show a trend of association as evidence accumulates and the recursive cumulative meta-analysis indicated lack of sufficient evidence for denying or claiming an association. CONCLUSION The current evidence is not sufficient to draw definite conclusions regarding the association of MTHFR variants and development of ALL.
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Azhar MR, Rahimi Z, Vaisi-Raygani A, Akramipour R, Madani H, Rahimi Z, Parsian A. Lack of association between MTHFR C677T and A1298C polymorphisms and risk of childhood acute lymphoblastic leukemia in the Kurdish population from Western Iran. Genet Test Mol Biomarkers 2011; 16:198-202. [PMID: 22017305 DOI: 10.1089/gtmb.2011.0041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
AIMS Polymorphism in genes involved in folate metabolism may influence the susceptibility to acute lymphoblastic leukemia (ALL). The aim of the present study was to determine the role of the two most common polymorphisms of the 5, 10-methylenetetrahydrofolate reductase (MTHFR) gene, MTHFR C677T and A1298C, and their interaction on the susceptibility to ALL. METHODS Seventy-two children with ALL and 109 age- and sex-matched healthy children from Western Iran were screened for MTHFR C677T and A1298C variants by using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). RESULTS The frequencies of MTHFR 677T and 1298C alleles in patients were 29.9% and 43.1%, respectively, that were higher than those in controls (24.8% and 38.1%, respectively). Logistic regression analysis was performed and its result in the odds ratios (ORs) for possession of either MTHFR 677T or 1298C allele was found to be 1.98 [95% confidence interval (CI) 0.72-5.4, p = 0.18] and 1.48 (95% CI 0.59-3.69, p = 0.4), respectively. Also the concomitant presence of both MTHFR 677T and 1298C alleles was not associated with the risk of ALL [OR = 2.12 (95% CI 0.8-5.7, p = 0.13)]. CONCLUSION Our results in a homogenous population with Kurdish ethnic background indicated that neither the MTHFR 677T allele nor the MTHFR 1298C allele is associated with increased risk of ALL.
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Affiliation(s)
- Mohammad-Reza Azhar
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
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Tong N, Sheng X, Wang M, Fang Y, Shi D, Zhang Z, Zhang Z. Methylenetetrahydrofolate reductase gene polymorphisms and acute lymphoblastic leukemia risk: a meta-analysis based on 28 case–control studies. Leuk Lymphoma 2011; 52:1949-60. [DOI: 10.3109/10428194.2011.589545] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Li Q, Huang L, Rong L, Xue Y, Lu Q, Rui Y, Li J, Tong N, Wang M, Zhang Z, Fang Y. hOGG1 Ser326Cys polymorphism and risk of childhood acute lymphoblastic leukemia in a Chinese population. Cancer Sci 2011; 102:1123-7. [PMID: 21401806 DOI: 10.1111/j.1349-7006.2011.01928.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Oxidative DNA damage caused by reactive oxygen species can produce 8-oxoguanine (8-oxoG) in DNA, which is misread and leads to G:C→T:A transversions. This can be carcinogenic. Repair of 8-oxoG by the base excision repair pathway involves the activity of human 8-oxoG DNA glycosylase 1 (hOGG1). Accumulating evidence suggests that the hOGG1 Ser326Cys polymorphism affects the activity of hOGG1 and might serve as a genetic marker for susceptibility to several cancers. To determine whether this polymorphism is associated with risk of childhood acute lymphoblastic leukemia (ALL) in Chinese children, we genotyped the hOGG1 Ser326Cys polymorphism (rs1052133) in a case-control study including 415 cases and 511 controls. We found that there was a significant difference in the genotype distributions of the hOGG1 Ser326Cys polymorphism between cases and controls (P = 0.046), and the combined genotypes Ser/Ser and Ser/Cys were associated with a statistically significantly decreased risk of ALL (adjusted odds ratio [OR] = 0.66, 95% confidence interval [CI] = 0.49-0.88, P = 0.005). Furthermore, we found a decreased risk for high risk ALL (adjusted OR = 0.60, 95% CI = 0.40-0.88, P = 0.005), low risk ALL (adjusted OR = 0.68, 95% CI = 0.47-0.99, P = 0.042), and B-phenotype ALL (adjusted OR = 0.63, 95% CI = 0.46-0.86, P = 0.003) among children with the Ser/Ser and Ser/Cys genotypes. Our results suggest that the hOGG1 Ser326Cys polymorphism is associated with susceptibility to childhood ALL in a Chinese population.
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Affiliation(s)
- Qian Li
- Department of Hematology and Oncology, The Affiliated Nanjing Children's Hospital of Nanjing Medical University, Nanjing Department of Hematology and Oncology, The Affiliated Children's Hospital of Soochow University, Suzhou Department of Molecular and Genetic Toxicology, Cancer Center of Nanjing Medical University, Nanjing, China
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