scholarly journals TP73 G4C14-A4T14 polymorphism and cancer susceptibility: evidence from 36 case–control studies

2018 ◽  
Vol 38 (6) ◽  
Author(s):  
Jialin Meng ◽  
Shuo Wang ◽  
Meng Zhang ◽  
Song Fan ◽  
Li Zhang ◽  
...  

G4C14-A4T14 polymorphism of TP73 gene has been reported with a potential association in cancer risks through affected cell homeostasis; however the results were not consistent. We performed a comprehensive meta-analysis to explore the associations between G4C14-A4T14 polymorphism and cancer susceptibility. Extensive retrieve was performed in PubMed, EMBASE, Google Scholar, Web of Science, Wanfang database and CNKI database up to May 20, 2018. Odds ratios (ORs) and 95% confidence intervals (CIs) were conducted to evaluate the overall strength of the associations in five genetic models, as well as in subgroup analyses. Q-test, false-positive report probability analysis and trial sequential analysis, Egger’s test and Begg’s funnel plot were applied to evaluate the robustness of the results. In silico analysis was managed to demonstrate the relationship of TP73 expression correlated with cancer tissues. Finally, 36 case–control studies with a total of 9493 cancer cases and 13,157 healthy controls were enrolled into the meta-analysis. The pooled results present a significantly higher risk of G4C14-A4T14 polymorphism in all the five genetic models, as well as in the subgroups of Caucasian, cervical cancer, colorectal cancer, H-B subgroup and comfort to Hardy–Weinberg equilibrium subgroup. In silico analysis revealed that the expression of TP73 in cervical cancer tissue is higher than it in corresponding normal tissue, as well as in cervical cancer. All in all, TP73 G4C14-A4T14 polymorphism causes an upgrade cancer risk, especially in Caucasian population. G4C14-A4T14 polymorphism might be a potential biomarker for judging the tumorigenesis of cervical cancer and colorectal cancer.

2018 ◽  
Vol 64 (10) ◽  
pp. 942-951 ◽  
Author(s):  
Mohammad Zare ◽  
Jamal Jafari-Nedooshan ◽  
Mohammadali Jafari ◽  
Hossein Neamatzadeh ◽  
Seyed Mojtaba Abolbaghaei ◽  
...  

SUMMARY OBJECTIVE: There has been increasing interest in the study of the association between human mutL homolog 1 (hMLH1) gene polymorphisms and risk of colorectal cancer (CRC). However, results from previous studies are inconclusive. Thus, a meta-analysis was conducted to derive a more precise estimation of the effects of this gene. METHODS: A comprehensive search was conducted in the PubMed, EMBASE, Chinese Biomedical Literature databases until January 1, 2018. Odds ratio (OR) with 95% confidence interval (CI) was used to assess the strength of the association. RESULTS: Finally, 38 case-control studies in 32 publications were identified met our inclusion criteria. There were 14 studies with 20668 cases and 19533 controls on hMLH1 −93G>A, 11 studies with 5,786 cases and 8,867 controls on 655A>G and 5 studies with 1409 cases and 1637 controls on 1151T>A polymorphism. The combined results showed that 655A>G and 1151T>A polymorphisms were significantly associated with CRC risk, whereas −93G>A polymorphism was not significantly associated with CRC risk. As for ethnicity, −93G>A and 655A>G polymorphisms were associated with increased risk of CRC among Asians, but not among Caucasians. More interestingly, subgroup analysis indicated that 655A>G might raise CRC risk in PCR-RFLP and HB subgroups. CONCLUSION: Inconsistent with previous meta-analyses, this meta-analysis shows that the hMLH1 655A>G and 1151T>A polymorphisms might be risk factors for CRC. Moreover, the −93G>A polymorphism is associated with the susceptibility of CRC in Asian population.


2018 ◽  
Vol 38 (5) ◽  
Author(s):  
Hai-Xia Duan ◽  
You-Yi Chen ◽  
Juan-Zi Shi ◽  
Nan-Nan Ren ◽  
Xiao-Juan Li

Interleukin-6 (IL-6) is a multifunctional cytokine that has been implicated in the etiology of cancer. Several case–control studies have been conducted to assess the association of IL-6 -174G>C (rs1800795) polymorphism with the risk of cervical cancer, yet with conflicting conclusions. To derive a more precise estimation of the relationship, we performed this meta-analysis updated to June 2018. A total of seven original publications were identified covering IL-6 -174G>C (rs1800795) polymorphism. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the relationship strengths. Statistically significant relationship was observed between IL-6 -174G>C polymorphism and cervical cancer risk (OR = 0.61, 95% CI: 0.40–0.94 for GG vs. CC, and OR = 0.77, 95% CI: 0.64–0.93 for G vs. C). Moreover, the significant association was found among Asians (OR = 0.46, 95% CI: 0.29–0.75 for GG vs. CC, and OR = 0.70, 95% CI: 0.57–0.89 for G vs. C); hospital-based subgroup (OR = 0.53, 95% CI: 0.38–0.72 for GG vs. CC, and OR = 0.73, 95% CI: 0.61–0.87 for G vs. C); and Hardy–Weinberg equilibrium ≤0.05 (OR = 0.56, 95% CI: 0.37–0.86 for GG vs. GC, and OR = 0.66, 95% CI: 0.47–0.93 for G vs. C). This meta-analysis showed the evidence that the IL-6 -174G>C polymorphism was a low-penetrance susceptibility variant for cervical cancer. Further large-scale case–control studies are needed to confirm these results.


2014 ◽  
Vol 41 (2) ◽  
pp. 1171-1178 ◽  
Author(s):  
Chuan Liu ◽  
Qinghua Yin ◽  
Mingzhen Ying ◽  
Junhui Lin ◽  
Lian Li ◽  
...  

2017 ◽  
Vol 32 (2) ◽  
pp. 231-242 ◽  
Author(s):  
Yating Ge ◽  
Runze Jiang ◽  
Meng Zhang ◽  
Hao Wang ◽  
Li Zhang ◽  
...  

Background and objective An increasing number of investigations are drawing attention to the relationship between polymorphisms in the HOTAIR gene and the risk of cancers, but the results obtained so far have been controversial and inconclusive. We performed an up-to-date meta-analysis to obtain a more precise estimate of the possible associations. Methods Crude odds ratios (ORs) and 95% confidence intervals (CIs) were calculated to evaluate the strength of the associations. Results Nine publications including 26 case-control studies comprising 37,900 individuals were enrolled for the 5 polymorphisms in HOTAIR. The overall analyses identified a significant association between the rs920778 polymorphism and increased susceptibility to cancer in homozygous and recessive models. We conducted a stratification analysis by cancer type and identified a significantly increased susceptibility to esophageal squamous cell carcinoma in all the genetic models and to gastric cancer in the dominant model. For the rs7958904 polymorphism we detected a significantly decreased susceptibility to overall cancer in all 5 genetic models rather than the heterogeneous model. However, no significant association was identified between the rs874945, rs4759314 and rs1899663 polymorphisms and cancer susceptibility. Conclusions Our results demonstrate that the HOTAIR rs920778 polymorphism may represent a risk factor for cancer, whereas the rs7958904 polymorphism may play a protective role.


Tumor Biology ◽  
2014 ◽  
Vol 35 (7) ◽  
pp. 6913-6918 ◽  
Author(s):  
Yongfu Wu ◽  
Hui Fu ◽  
Hanbin Zhang ◽  
Haohai Huang ◽  
Miao Chen ◽  
...  

2017 ◽  
Vol 2 (2) ◽  
pp. 29
Author(s):  
Sedigheh Hamadani ◽  
Mahdieh Kamali ◽  
Sedigheh Hantoushzadeh ◽  
Razieh Sadat Tabatabaee ◽  
Hossein Neamatzadeh ◽  
...  

Objective: Some studies have recently focused on the association between TNF-α polymorphisms and cervical cancer; however, results have been inconsistent. In order to drive a more precise estimation, the present systematic review and meta-analysis is performed to investigate the relationship of the TNF-α rs1800629 and s1799724 polymorphisms with cervical cancer risk. Methods: An electronic search was conducted on PubMed, Web of Science, and Google scholar databases, for papers that describe the association between TNF-α polymorphisms and cervical cancer risk. Results: A number of 24 case-control studies in 22 publications were identified according to the inclusion criteria. The results showed that rs1800629 polymorphism was significantly associated with the increased cervical cancer risk under four genetic models (A vs. G: OR = 1.277, 95% CI: 1.104-1.477, p = 0.001; AA vs. GG: OR = 1.333, 95% CI: 1.062-1.674, p = 0.013; AG vs. GG: OR = 1.307, 95% CI: 1.064-1.605, p = 0.011; and AA+AG vs. GG: OR = 1.324, 95% CI: 1.104-1.587, p = 0.002). In stratified analysis, there was a significant association between rs1800629 polymorphism and cervical cancer risk in the subgroup of Caucasians and African, but not in Asians. However, no statistically significant association was observed between the s1799724 and cervical cancer risk under all genetic models. Furthermore, stratification by ethnicity indicated no association between the s1799724 and cervical cancer risk.Conclusion: the present meta-analysis suggests that the rs1800629 polymorphism of the TNF-α gene was significantly associated with cervical cancer risk, but not s1799724.  


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