ReviewMolecular genetics & genomic medicine2024
Genotype and phenotype in patients with ACAN gene variants: Three cases and literature review.
Review in Molecular genetics & genomic medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.
- Research progress of short stature and advanced bone age, early-onset osteoarthritis and osteochondritis dissecans (SSOAOD) caused by acan gene mutation.Frontiers in endocrinology · 2026Pooled it
- Article
- Aggrecanopathy as an Underrecognized Cause of Idiopathic Short Stature: The Importance of Early Genetic Confirmation for Timely Diagnosis and Management-Case Reports and Literature Review.Diseases (Basel, Switzerland) · 2026Article
- Impact of Growth Hormone Treatment in Children From an Extended Family With ACAN -Related Short Stature.Clinical genetics · 2026Article
- Comprehensive in silico analysis of genetic landscape and pathways involved in Stickler syndrome.PloS one · 2026Article
- Genetic Heterogeneity Underlying Familial Short Stature.Diagnostics (Basel, Switzerland) · 2025Article
- Genotype and phenotype in patients with ACAN gene variants: Three cases and literature review.Molecular genetics & genomic medicine · 2024Review
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
objectiveTo characterize the phenotype spectrum, diagnosis, and response to growth-promoting therapy in patients with ACAN variants causing familial short stature.
methodsThree families with ACAN variants causing short stature were reported. Similar cases in the literature were summarized, and the genotype and phenotype were analyzed.
resultsThree novel heterozygous variants, c.757+1G>A, (splicing), c.6229delG, p.(Asp2078Tfs*1), and c.6679C>T, p.(Gln2227*) in the ACAN gene were identified. A total of 314 individuals with heterozygous variants from 105 families and 8 individuals with homozygous variants from 4 families were confirmed to have ACAN variants from literature and our 3 cases. Including our 3 cases, the variants reported comprised 33 frameshift, 39 missense, 23 nonsense, 5 splicing, 4 deletion, and 1 translocation variants. Variation points are scattered throughout the gene, while exons 12, 15, and 10 were most common (25/105, 11/105, and 10/105, respectively). Some identical variants existing in different families could be hot variants, c.532A>T, p.(Asn178Tyr), c.1411C>T, p.(Gln471*), c.1608C>A, p.(Tyr536*), c.2026+1G>A, (splicing), and c.7276G>T, p.(Glu2426*). Short stature, early-onset osteoarthritis, brachydactyly, midfacial hypoplasia, and early growth cessation were the common phenotypic features. The 48 children who received rhGH (and GnRHa) treatment had a significant height improvement compared with before (-2.18 ± 1.06 SD vs. -2.69 ± 0.95 SD, p < 0.001). The heights of children who received rhGH (and GnRHa) treatment were significantly improved compared with those of untreated adults (-2.20 ± 1.10 SD vs. -3.24 ± 1.14 SD, p < 0.001).
conclusionOur study achieves a new understanding of the phenotypic spectrum, diagnosis, and management of individuals with ACAN variants. No clear genotype-phenotype relationship of patients with ACAN variants was found. Gene sequencing is necessary to diagnose ACAN variants that cause short stature. In general, appropriate rhGH and/or GnRHa therapy can improve the adult height of affected pediatric patients caused by ACAN variants.
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