Allelic bias contributes to heterogeneous phenotypes of NK cell deficiency.

ABSTRACT: While monogenic variants in CDC45-MCM-GINS (CMG) replisome proteins cause human natural killer cell deficiencies (NKDs), family members with the same inherited variants often have variable clinical and cellular phenotypes. We investigated two siblings with inherited compound heterozygous GINS4 variants but variable disease expressivity. Cell cycle impairment and increased apoptosis were detected following NK cell lineage commitment but not in pluripotent cells. While this effect was detected in both siblings, the efficiency of NK cell differentiation was variable and correlated with differential clinical severity of NKD. Further investigation of allelic expression of inherited GINS4 variants demonstrated expected biallelic expression of GINS4 in pluripotent cells and progenitors. However,

SUBMITTER: Seo S 

PROVIDER: S-EPMC12450099 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature