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Pan H, Shi Z, Gao L, Zhang L, Wei S, Chen Y, Lu C, Wang J, Zuo L, Zhang L. Impact of the cytotoxic T-lymphocyte associated antigen-4 rs231775 A/G polymorphism on cancer risk. Heliyon 2023; 9:e23164. [PMID: 38144286 PMCID: PMC10746491 DOI: 10.1016/j.heliyon.2023.e23164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 11/23/2023] [Accepted: 11/28/2023] [Indexed: 12/26/2023] Open
Abstract
Background Cytotoxic T-lymphocyte associated antigen-4 (CTLA-4) is an immunosuppressive checkpoint that is involved in the development and metastasis of cancers. Several studies revealed that CTLA-4 rs231775A/G polymorphism may be associated with the risk of cancer in some populations, but the conclusions of these studies are not consistent. Methods We conducted a pooled analysis with eligible studies to explore the association between the CTLA-4 rs231775 variant and cancer risk. Additionally, we used in silico tools to evaluated the expression of CTLA-4 on urinary system cancer. Moreover, we adopted the enzyme-linked immunosorbent assay (ELISA), and Gene Set Enrichment Analysis (GSEA) to investigate the effects of CTLA-4 on bladder cancer (BLCA). Results In total, 92 case-control studies involving 29,987 patients with cancer and 36,484 healthy individuals (controls) were included in the pooled analysis. In the stratified analysis based on cancer type, the rs231775 A/G polymorphism was associated with increased bladder cancer risk in the heterozygote contrast model (OR = 1.23, 95% CI = 1.01-1.51, P = 0.040). The race-stratified analysis revealed that East Asians with the GG genotype had a 12% lower risk of developing cancer than those with the GA + AA genotype (95% CI = 0.81-0.95, P = 0.001). The in silico analysis showed that CTLA-4 expression was augmented in patients with BLCA. The ELISA results revealed that CTLA-4 expression was reduced in patients with BLCA carrying the AA genotype. Several signaling pathways, including cytokine-cytokine receptor interactions and T-cell receptor signaling, were associated with CTLA-4 expression. Conclusion The CTLA-4 rs231775 A/G polymorphism is associated with cancer risk in East Asian population. This polymorphism is especially associated with BLCA.
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Affiliation(s)
- Haiyan Pan
- Department of Urology, Affiliated Hospital of Jiangnan University, Hefeng Road 1000, Wuxi, 214000, PR China
| | - Zebin Shi
- Department of Urology, Changzhou Second People’s Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213003, Jiangsu Province, PR China
| | - Lei Gao
- Department of Urology, Changzhou Second People’s Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213003, Jiangsu Province, PR China
| | - Li Zhang
- Department of Urology, Changzhou Second People’s Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213003, Jiangsu Province, PR China
| | - Shuzhang Wei
- Department of Urology, Changzhou Second People’s Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213003, Jiangsu Province, PR China
| | - Yin Chen
- Department of Urology, Changzhou Second People’s Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213003, Jiangsu Province, PR China
| | - Chao Lu
- Department of Urology, Changzhou Second People’s Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213003, Jiangsu Province, PR China
| | - Jianzhong Wang
- Department of Hospital Office, Affiliated Hospital of Jiangnan University, Hefeng Road 1000, Wuxi, 214000, PR China
| | - Li Zuo
- Department of Urology, Changzhou Second People’s Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213003, Jiangsu Province, PR China
| | - Lifeng Zhang
- Department of Urology, Changzhou Second People’s Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213003, Jiangsu Province, PR China
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