Work

CYP11B1 variants influence skeletal maturation via alternative splicing

Year: 2021
Type: article
Study design: Observational Study
Abstract: We performed genome-wide association study meta-analysis to identify genetic determinants of skeletal age (SA) deviating in multiple growth disorders. The joint meta-analysis (N = 4557) in two multiethnic cohorts of school-aged children identified one locus, CYP11B1 (expression confined to the adrenal gland), robustly associated with SA (rs6471570-A; β = 0.14; P = 6.2 × 10−12). rs6410 (a synonymous variant in the first exon of CYP11B1 in high LD with rs6471570), was prioritized for functional follow-up being second most significant and the one closest to the first intron-exon boundary. In 208 adrenal RNA-seq samples from GTEx, C-allele of rs6410 was associated with intron 3 retention (P = 8.11 × 10−40), exon 4 inclusion (P = 4.29 × 10−34), and decreased exon 3 and 5 splicing (P = 7.85 × 10−43), replicated using RT-PCR in 15 adrenal samples. As CYP11B1 encodes 11-β-hydroxylase, involved in adrenal glucocorticoid and mineralocorticoid biosynthesis, our findings highlight the role of adrenal steroidogenesis in SA in healthy children, suggesting alternative splicing as a likely underlying mechanism.
Language: English
Subfield: Genetics
Open Access status: gold
Estimated APC paid: $3,290
OpenAlex ID: W3212914766
FWCI: 0.503
Cites: 78
Cited by: 8
Related to: 10