Association of CTLA4 c.49A > G (rs231775; p.Thr17Ala) gene variant with the risk of hepatocellular carcinoma and gastric cancer: A meta-analysis and meta-regression
Akram Abbas El Awady , Rami M. Elshazli , Ahmed Akram El Awady , Abdelaziz Elgaml , Ahmed K. Khalifa , Ahmad Settin
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引用次数: 4
Abstract
Objective
Various reports have examined the contribution of the CTLA4 c.49A>G (rs231775; p.Thr17Ala) gene variant with different cancerous disorders. This meta-analysis was executed to further probe into the involvement of this missense variant with the susceptibility for hepatocellular carcinoma (HCC) and gastric cancer (GC).
Methodology
Following a wide-based scrutinized search of the internet done by three independent researchers for the contribution of the CTLA4 c.49A>G (rs231775; p.Thr17Ala) variant with the cancer risk up to February 2021, only 16 case-control studies were found relevant and usable to the analysis out of 575 total retrieved reports. Multiple genetic models were checked for the proposed association through the computation of the odds ratio (OR) in addition to their 95% confidence intervals (95%CIs). Stratification and regression analysis was also carried out for the analyzed reports based on their geographical distributions, genotyping techniques, source of cancer-free controls, genetic equilibrium within cancer-free controls, and quality score. In addition, trial sequential analysis (TSA) was applied to test for the adequacy of the total sample size.
Results
This meta-analysis has included 4320 HCC and GC patients in conjunction with 6601 cancer-free controls. This work disclosed a significant association for the CTLA4 c.49A>G (rs231775; p.Thr17Ala) variant with HCC among overall subjects tested by the recessive model [OR = 1.235, 95% CI = 1.050–1.453, P-value = 0.011]. Similarly, an elevated risk of GC was noticed associated with this variant within the overall subjects tested by the allelic model [OR = 1.225, 95% CI = 1.070–1.401, P-value = 0.003], and dominant model [OR = 1.352, 95% CI = 1.081–1.691, P-value = 0.008]. Furthermore, the stratification analysis showed a verification of correlation for this variant with HCC in Asian subjects under the recessive model, while the association was observed to be significant with GC in Asian and Caucasian patients under the dominant model. TSA confirmed that this work had significant findings noting that the collective Z-curve spanned the examining borderlines prior to attaining sample size confirming the acceptability of the study sample size.
Conclusion
The CTLA4 c.49A>G (rs231775; p.Thr17Ala) gene variant could be considered as an actual risk factor for the susceptibility of HCC and GC warranting efficient and adequate genetic counseling for this gene variant carriers.
Meta GeneBiochemistry, Genetics and Molecular Biology-Genetics
CiteScore
1.10
自引率
0.00%
发文量
20
期刊介绍:
Meta Gene publishes meta-analysis, polymorphism and population study papers that are relevant to both human and non-human species. Examples include but are not limited to: (Relevant to human specimens): 1Meta-Analysis Papers - statistical reviews of the published literature of human genetic variation (typically linked to medical conditionals and/or congenital diseases) 2Genome Wide Association Studies (GWAS) - examination of large patient cohorts to identify common genetic factors that influence health and disease 3Human Genetics Papers - original studies describing new data on genetic variation in smaller patient populations 4Genetic Case Reports - short communications describing novel and in formative genetic mutations or chromosomal aberrations (e.g., probands) in very small demographic groups (e.g., family or unique ethnic group). (Relevant to non-human specimens): 1Small Genome Papers - Analysis of genetic variation in organelle genomes (e.g., mitochondrial DNA) 2Microbiota Papers - Analysis of microbiological variation through analysis of DNA sequencing in different biological environments 3Ecological Diversity Papers - Geographical distribution of genetic diversity of zoological or botanical species.