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Polymorphism of cytosolic serine hydroxymethyltransferase, estrogen and breast cancer risk among Chinese women in Taiwan.
Breast Cancer Res Treat. 2008 Sep; 111(1):145-55.BC

Abstract

Cytosolic serine hydroxymethyltransferase (cSHMT) is key to intersection of folate-metabolic pathway, participating in the pyrimidine synthesis for DNA repair. Based on the hypothesis that variants of the cSHMT C1420T together with methionine synthase (MS A2756G) and 5,10-methylenetetrahydrofolate reductase (MTHFR C677T and A1298C) are associated with breast cancer, we performed a multigenic case-control study of the effects to breast cancer risk of four polymorphisms of folate-metabolizing genes against duration of estrogen exposure. Support of our hypothesis came from the following observations: (i) Allelic frequency of cSHMT C1420T was higher in the controls than in the cases, manifesting a 0.56-fold risk reduction in breast cancer (95%CI = 0.39-0.80); and this association was more significant in those women are susceptible to time of estrogen exposure. (ii) A joint effect of the cSHMT and MS polymorphisms significantly reduced susceptibility to breast cancer (aOR = 0.55; 95%CI = 0.34-0.88). (iii) There was a trend toward a reduced risk of breast cancer in women carrying a greater number of putative low-risk genotypes (Ptrend = 0.048). (iv) This synergistic effects on risk reduction was significantly interacted with length of estrogen exposure, exhibiting a longer time of estrogen exposure (> or =30 years), menarche-to-FFTP interval (>11 years), age at the first full-term pregnancy (< or =25 years), and body mass index (< or =24). In conclusion, our study provides support to account for the preferential role of cSHMT polymorphism to lower risk of female breast cancer, and such reduced risk would be more significant in carriers with the polymorphisms of MS and MTHFR genes.

Authors+Show Affiliations

Institute of Biochemistry and Biotechnology, Chung Shan Medical University, Taichung, 402, Taiwan. cwcheng@csmu.edu.twNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17896178

Citation

Cheng, Chun-Wen, et al. "Polymorphism of Cytosolic Serine Hydroxymethyltransferase, Estrogen and Breast Cancer Risk Among Chinese Women in Taiwan." Breast Cancer Research and Treatment, vol. 111, no. 1, 2008, pp. 145-55.
Cheng CW, Yu JC, Huang CS, et al. Polymorphism of cytosolic serine hydroxymethyltransferase, estrogen and breast cancer risk among Chinese women in Taiwan. Breast Cancer Res Treat. 2008;111(1):145-55.
Cheng, C. W., Yu, J. C., Huang, C. S., Shieh, J. C., Fu, Y. P., Wang, H. W., Wu, P. E., & Shen, C. Y. (2008). Polymorphism of cytosolic serine hydroxymethyltransferase, estrogen and breast cancer risk among Chinese women in Taiwan. Breast Cancer Research and Treatment, 111(1), 145-55.
Cheng CW, et al. Polymorphism of Cytosolic Serine Hydroxymethyltransferase, Estrogen and Breast Cancer Risk Among Chinese Women in Taiwan. Breast Cancer Res Treat. 2008;111(1):145-55. PubMed PMID: 17896178.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Polymorphism of cytosolic serine hydroxymethyltransferase, estrogen and breast cancer risk among Chinese women in Taiwan. AU - Cheng,Chun-Wen, AU - Yu,Jyh-Cherng, AU - Huang,Chiun-Sheng, AU - Shieh,Jia-Ching, AU - Fu,Yi-Ping, AU - Wang,Hsiao-Wei, AU - Wu,Pei-Ei, AU - Shen,Chen-Yang, Y1 - 2007/09/22/ PY - 2007/09/04/received PY - 2007/09/06/accepted PY - 2007/9/27/pubmed PY - 2008/9/17/medline PY - 2007/9/27/entrez SP - 145 EP - 55 JF - Breast cancer research and treatment JO - Breast Cancer Res Treat VL - 111 IS - 1 N2 - Cytosolic serine hydroxymethyltransferase (cSHMT) is key to intersection of folate-metabolic pathway, participating in the pyrimidine synthesis for DNA repair. Based on the hypothesis that variants of the cSHMT C1420T together with methionine synthase (MS A2756G) and 5,10-methylenetetrahydrofolate reductase (MTHFR C677T and A1298C) are associated with breast cancer, we performed a multigenic case-control study of the effects to breast cancer risk of four polymorphisms of folate-metabolizing genes against duration of estrogen exposure. Support of our hypothesis came from the following observations: (i) Allelic frequency of cSHMT C1420T was higher in the controls than in the cases, manifesting a 0.56-fold risk reduction in breast cancer (95%CI = 0.39-0.80); and this association was more significant in those women are susceptible to time of estrogen exposure. (ii) A joint effect of the cSHMT and MS polymorphisms significantly reduced susceptibility to breast cancer (aOR = 0.55; 95%CI = 0.34-0.88). (iii) There was a trend toward a reduced risk of breast cancer in women carrying a greater number of putative low-risk genotypes (Ptrend = 0.048). (iv) This synergistic effects on risk reduction was significantly interacted with length of estrogen exposure, exhibiting a longer time of estrogen exposure (> or =30 years), menarche-to-FFTP interval (>11 years), age at the first full-term pregnancy (< or =25 years), and body mass index (< or =24). In conclusion, our study provides support to account for the preferential role of cSHMT polymorphism to lower risk of female breast cancer, and such reduced risk would be more significant in carriers with the polymorphisms of MS and MTHFR genes. SN - 0167-6806 UR - https://www.unboundmedicine.com/medline/citation/17896178/Polymorphism_of_cytosolic_serine_hydroxymethyltransferase_estrogen_and_breast_cancer_risk_among_Chinese_women_in_Taiwan_ L2 - https://doi.org/10.1007/s10549-007-9754-x DB - PRIME DP - Unbound Medicine ER -