Relationship between polymorphisms of CXCL3 gene and preeclampsia

Area of Science:

• Genetics
• Obstetrics
• Molecular Biology

Background:

• Preeclampsia (PE) is a major global cause of maternal and perinatal mortality with unknown pathogenesis.
• PE is increasingly understood as a multifactorial disorder involving genetic components.
• Previous research identified abnormal CXCL3 expression in severe preeclampsia.

Purpose of the Study:

• To investigate the association between CXCL3 gene polymorphisms and preeclampsia susceptibility.
• To analyze the role of the rs370655 variant in preeclampsia risk among women in western China.

Main Methods:

• A case-control study involving 481 pregnant women (83 early-onset severe PE, 114 late-onset severe PE, 41 mild PE, 243 controls).
• Genotyping of the rs370655 variant in the CXCL3 gene using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP).

Main Results:

• No significant association was found between the rs370655 AA genotype and reduced preeclampsia risk compared to other genotypes (AG vs. AA: OR=0.82, 95%CI=0.54-1.26; GG vs. AA: OR=0.95, 95%CI=0.56-1.61).
• Subgroup analyses for mild, early-onset severe, and late-onset severe preeclampsia also revealed no significant genotype-based differences.

Conclusions:

• The rs370655 polymorphism in the CXCL3 gene does not appear to be a risk factor for preeclampsia.
• Investigating other single nucleotide polymorphisms (SNPs) in the CXCL3 gene may be crucial for understanding and predicting preeclampsia.