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. 2025 Mar 15:941:149226.
doi: 10.1016/j.gene.2025.149226. Epub 2025 Jan 9.

Genetic variations in IGF2BP2 and CAPN10 and their interaction with environmental factors increase gestational diabetes mellitus risk in Chinese women

Runqiu Yang  1 , Xin Wang  1 , Yi Zhang  1 , Lei Jin  2 , Kai Zhao  3 , Juan Chen  4 , Xuejun Shang  5 , Yuanzhong Zhou  6 , Hongsong Yu  7
Affiliations

Genetic variations in IGF2BP2 and CAPN10 and their interaction with environmental factors increase gestational diabetes mellitus risk in Chinese women

Runqiu Yang et al. Gene. .

Abstract

Aim: This study aims to investigate the association of the genetic variations in IGF2BP2 and CAPN10 as well as gene-environment interactions with the risk of gestational diabetes (GDM) in Chinese women.

Materials and methods: A total of 1,566 pregnant Chinese women participated in this case-control study. We employed targeted next-generation sequencing to analyze specific SNPs in IGF2BP2 (rs11927381, rs1470579, rs4402960, rs7640539) and CAPN10/rs2975760. Various genetic models were used to assess the associations of these polymorphisms with GDM risk. Gene-gene and gene-environment interactions were examined using GMDR to identify interaction models, Subsequently, logistic regression was employed to confirm the significance of these models and to evaluate their impact on GDM susceptibility.

Results: Our study identified significant associations between the C allele of IGF2BP2/rs11927381 and an increased GDM susceptibility in both dominant (P = 0.031, OR = 1.247) and heterozygote (P = 0.043, OR = 1.239) gene models. Conversely, the heterozygote TC genotype of CAPN10/rs2975760 was associated with a reduced risk of GDM (P = 0.046, OR = 0.766). Increased BMI and O3 levels were linked to a higher GDM susceptibility. We discovered interactions between CAPN10/rs2975760 CC and IGF2BP2/rs11927381 TC genotype that exacerbated GDM risk (P = 0.022, OR = 11.337). Furthermore, interactions between IGF2BP2/rs11927381 and environmental factors were observed, indicating increased GDM risks (BMI: P = 0.004, OR = 1.011; O3: P = 0.013, OR = 1.002; PM2.5: P = 0.042, OR = 1.005；BC: P = 0.048, OR = 1.094; NO3-:P = 0.045, OR = 1.024).

Conclusion: GDM is significantly associated with IGF2BP2/rs11927381 and CAPN10/rs2975760 polymorphisms as well as exposure to O3. Furthermore, the interaction between the CAPN10/rs2975760 CC genotype and IGF2BP2/rs11927381 TC genotype, as well as environmental factors (O3, PM2.5, BMI), significantly increases the risk of GDM in Chinese women.

Keywords: CAPN10; GDM; Gene-environment interactions; IGF2BP2; O(3); PM(2.5).

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Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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