[Gene mutations in congenital bilateral absence of the vas deferens: An update]

Area of Science:

• Reproductive Biology
• Medical Genetics
• Molecular Pathogenesis

Background:

• Congenital bilateral absence of the vas deferens (CBAVD) is a significant cause of obstructive azoospermia and male infertility.
• Mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene are the primary identified cause of CBAVD.
• Additional genetic factors, including the adhesion G protein-coupled receptor G2 (ADGRG2) and solute carrier family 9 isoform 3 (SLC9A3) genes, are implicated in CBAVD development.

Purpose of the Study:

• To elucidate the molecular pathogenesis of CBAVD focusing on CFTR, ADGRG2, and SLC9A3 gene mutations.
• To offer novel insights for the clinical diagnosis and treatment strategies for CBAVD.
• To enhance genetic counseling approaches for individuals and families affected by CBAVD.

Main Methods:

• Review and analysis of current literature on the genetic basis of CBAVD.
• Focus on the molecular mechanisms by which CFTR, ADGRG2, and SLC9A3 mutations contribute to the condition.
• Integration of findings with existing diagnostic and therapeutic paradigms for male infertility.

Main Results:

• Detailed examination of the role of CFTR gene mutations in the development of CBAVD.
• Identification of ADGRG2 and SLC9A3 as contributing genes, expanding the understanding of CBAVD etiology.
• Highlighting the interplay between genetic factors and male reproductive system malformations.

Conclusions:

• Understanding the specific gene mutations (CFTR, ADGRG2, SLC9A3) is crucial for accurate CBAVD diagnosis.
• Molecular insights can guide the development of targeted therapies and improved assisted reproductive technologies.
• Addressing the hereditary risks associated with CBAVD is essential for effective genetic counseling and family planning.