Lack of Association between CYP1A1 M2 and M4 Polymorphisms and Breast Carcinoma in Jordanian Women: a Case-Control Study

Amrani, Iman; Bulatova, Nailya; Awidi, Abdalla; Yousef, Al-Motassem; Melhem, Jamal Masad; Al-Masri, Mahmoud; Tahoun, Laila Abu

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저자정보: Amrani, Iman (Department of Pharmacy, Faculty of Medicine, University of Batna Algeria) Bulatova, Nailya (Department of Biopharmaceutics and Clinical Pharmacy. Faculty of Pharmacy, The University of Jordan) Awidi, Abdalla (Department of Hematology and Oncology, The University of Jordan Hospital) Yousef, Al-Motassem (Department of Biopharmaceutics and Clinical Pharmacy. Faculty of Pharmacy, The University of Jordan) Melhem, Jamal Masad (Department of Surgery, The University of Jordan Hospital) Al-Masri, Mahmoud (Department of Surgical Oncology, King Hussein Cancer Center) Tahoun, Laila Abu (Department of Radiology, King Hussein Cancer Center)

저널정보: 아시아태평양암예방학회 Asian Pacific journal of cancer prevention : APJCP Asian Pacific journal of cancer prevention : APJCP 제17권 제1호

발행연도: 2016.1

수록면: 387 - 393 (7page)

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Background: CYP1A1 is a candidate gene for low-penetrance breast cancer susceptibility, as it plays an important role in the metabolism of carcinogens and estrogens. Purpose: The objective of this study was to assess the association between M2 (A2455G, Ile462Val) and M4 (C2453A, Thr461Asn) polymorphisms in CYP1A1 and breast cancer risk among Jordanian women and in subgroups stratified by menopausal status and smoking history. Materials and Methods: Blood samples were collected from 112 breast cancer female patients and 115 age-matched controls who underwent breast cancer screening with imaging and showed negative results (BI-RADS I or BI-RADS II). Genotyping was performed using the PCR-RFLP technique. Results: No statistically significant overall association was found between breast cancer risk and CYP1A1 M2 genotypes (p= 0.55; OR = 0.77; 95% CI= 0.32 - 1.83) nor with the M4 polymorphism (p= 0.95; OR= 0.95; 95% CI= 0.51 - 1.88). Analysis of subgroups defined by menopausal status or smoking history also revealed no association with these polymorphisms. Furthermore, the four identified haplotypes (AC; AA; GC and GA) were equally distributed among cases and controls, and haplotype analysis showed a strong linkage disequilibrium of both studied loci in either cases or controls (D'=1). Conclusions: Based on the study results, CYP1A1 M2 and M4 polymorphisms do not seem to play a major role in breast cancer risk among Jordanian females.

#CYP1A1 #breast cancer #genotype #genetic polymorphism #SNP #Jordanian women #menopause #smoking

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