A novel heterozygous missense variant of PANX1 causes human oocyte death and female infertility
Journal of Ovarian Research, ISSN: 1757-2215, Vol: 17, Issue: 1, Page: 180
2024
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Article Description
Pannexin1 (PANX1) is a highly glycosylated membrane channel-forming protein, which has been found to implicate in multiple physiological and pathophysiological functions. Variants in the PANX1 gene have been reported to be associated with oocyte death and recurrent in vitro fertilization failure. In this study, we identified a novel heterozygous PANX1 variant (NM_015368.4 c.410 C > T (p.Ser137Leu)) associated with the phenotype of oocyte death in a non-consanguineous family, followed by an autosomal dominant (AD) mode. We explored the molecular mechanism of the novel variant and the variant c.976_978del (p.Asn326del) that we reported previously. Both of the variants altered the PANX1 glycosylation pattern in cultured cells, led to aberrant PANX1 channel activation, affected ATP release and membrane electrophysiological properties, which resulted in mouse and human oocyte death in vitro. For the first time, we presented the direct evidence of the effect of the PANX1 variants on human oocyte development. Our findings expand the variant spectrum of PANX1 genes associated with oocyte death and provide new support for the genetic diagnosis of female infertility.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85203063792&origin=inward; http://dx.doi.org/10.1186/s13048-024-01462-9; http://www.ncbi.nlm.nih.gov/pubmed/39232764; https://ovarianresearch.biomedcentral.com/articles/10.1186/s13048-024-01462-9; https://dx.doi.org/10.1186/s13048-024-01462-9
Springer Science and Business Media LLC
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