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Updated: Oct 11, 2025

Studying Wnt Signaling During Patterning of Conducting Airways
Published on: October 16, 2016
Bronchopulmonary dysplasia and wnt pathway-associated single nucleotide polymorphisms
Ayberk Akat1, Seda Yilmaz Semerci2, Osman Mutluhan Ugurel1,3
1Bioengineering Department, Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, Davutpasa, Istanbul, Turkey.
Insights
Genetic variants are linked to bronchopulmonary dysplasia (BPD) risk in premature infants. This study identified eight single nucleotide polymorphisms (SNPs) associated with BPD, highlighting the WNT pathway
Area of Science:
- Genetics
- Neonatology
- Pulmonology
Background:
- Bronchopulmonary dysplasia (BPD) is a significant complication in preterm infants.
- Genetic factors are increasingly recognized for their contribution to BPD pathogenesis.
- Identifying specific genetic risk factors is crucial for understanding BPD development.
Purpose of the Study:
- To evaluate the association of 45 single nucleotide polymorphisms (SNPs) with BPD susceptibility in a Turkish premature infant cohort.
- To investigate the role of genetic variants in the development of BPD.
- To explore potential interactions between genes involved in BPD pathogenesis.
Main Methods:
- A cohort of 192 premature infants (gestational age <32 weeks) was studied.
- Infants were categorized into BPD and no-BPD groups based on oxygen requirements at 28 days.
- Genotyping was performed for 45 pre-identified BPD risk SNPs.
Main Results:
- Eight SNPs showed association with BPD risk at the allele level.
- Two SNPs (rs4883955 on KLF12 and rs9953270 on CHST9) were significant at both allele and genotype levels.
- In-silico analysis suggested functional interactions among five genes, converging on WNT5A, implicating the WNT pathway in BPD.
Conclusions:
- Specific SNPs in genes like KLF12 and CHST9 may contribute to BPD pathogenesis.
- The WNT pathway, particularly WNT5A, appears to play a role in BPD development.
- Further research into Wnt pathway-related SNPs is warranted for potential therapeutic targets.
Aim:
Genetic variants contribute to the pathogenesis of bronchopulmonary dysplasia (BPD). The aim of this study is to evaluate the association of 45 SNPs with BPD susceptibility in a Turkish premature infant cohort.
Methods:
Infants with gestational age <32 weeks were included. Patients were divided into BPD or no-BPD groups according to oxygen need at 28 days of life, and stratified according to the severity of BPD. We genotyped 45 SNPs, previously identified as BPD risk factors, in 192 infants.
Results:
A total of eight SNPs were associated with BPD risk at allele level, two of which (rs4883955 on KLF12 and rs9953270 on CHST9) were also associated at the genotype level. Functional relationship maps suggested an interaction between five of these genes, converging on WNT5A, a member of the WNT pathway known to be implicated in BPD pathogenesis. Dysfunctional CHST9 and KLF12 variants may contribute to BPD pathogenesis through an interaction with WNT5A.
Conclusions:
We suggest investigating the role of SNPs on different genes which are in relation with the Wnt pathway in BPD pathogenesis. We identified eight SNPs as risk factors for BPD in this study. In-silico functional maps show an interaction of the genes harboring these SNPs with the WNT pathway, supporting its role in BPD pathogenesis.
Trial Registration:
NCT03467828.
Impact:
It is known that genetic factors may contribute to the development of BPD in preterm infants. Further studies are required to identify specific genes that play a role in the BPD pathway to evaluate them as a target for therapeutic interventions. Our study shows an association of BPD predisposition with certain polymorphisms on MBL2, NFKBIA, CEP170, MAGI2, and VEGFA genes at allele level and polymorphisms on CHST9 and KLF12 genes at both allele and genotype level. In-silico functional mapping shows a functional relationship of these five genes with WNT5A, suggesting that Wnt pathway disruption may play a role in BPD pathogenesis.
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