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Barrier genes are associated with preterm birth.
Kuan-Ru Chen1, Shih-Kai Chu2, Pao-Lin Kuo3,4,5
1Department of Medical Research, E-DA Hospital, I-Shou University, Kaohsiung, Taiwan.
Frontiers in Medicine
|July 8, 2025
Summary
Maternal barrier gene dysfunction may contribute to preterm birth (PTB). This study identified specific barrier genes, including NOTCH1, associated with PTB risk, offering insights for prevention.
Area of Science:
- Genetics
- Reproductive Biology
- Obstetrics
Background:
- Biological barriers are crucial for maintaining physiological integrity and preventing infections.
- Maternal barrier dysfunction is a potential, yet unconfirmed, factor in preterm birth (PTB).
- Understanding the genetic basis of maternal barrier function is key to investigating PTB etiology.
Purpose of the Study:
- To investigate genetic associations between maternal barrier genes and preterm birth (PTB) susceptibility.
- To identify specific maternal barrier genes implicated in the risk of PTB.
Main Methods:
- Analysis of 201 barrier-related genes for association with PTB.
- Utilized summary statistics from the FinnGen study, whole-genome sequencing (WGS) literature, and the Early Growth Genetics (EGG) meta-analysis.
- Examined maternal genome data to identify PTB-associated barrier genes.
Main Results:
- Several maternal barrier genes, including NOTCH1, LAMA4, F11R, MAGI1, MAGI2, TJP1, PARD3, CLDN10, CLDN14, CLDN15, GRHL3, CGNL1, LAMB2, RHOA, and LRP5, were associated with PTB.
- The gene NOTCH1 showed consistent association across at least two independent genomic datasets.
- Identified genetic links between maternal barrier genes and PTB susceptibility.
Conclusions:
- The gene NOTCH1's established roles in vascular barrier function, angiogenesis, and inflammation support its mechanistic involvement in PTB.
- This research provides genetic evidence linking maternal barrier genes to PTB.
- Findings offer valuable insights for developing future prevention and intervention strategies for preterm birth.
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