Heterozygous variants in MYH10 associated with neurodevelopmental disorders and congenital anomalies with evidence for primary cilia-dependent defects in Hedgehog signaling

Holtz, Alexander M.; VanCoillie, Rachel; Vansickle, Elizabeth A.; Carere, Deanna Alexis; Withrow, Kara; Torti, Erin; Juusola, Jane; Millan, Francisca; Person, Richard; Sacoto, Maria J. Guillen; Si, Yue; Wentzensen, Ingrid M.; Pugh, Jada; Vasileiou, Georgia; Rieger, Melissa; Reis, Andr Prime E.; Argilli, Emanuela; Sherr, Elliott H.; Aldinger, Kimberly A.; Dobyns, William B.; Brunet, Theresa; Hoefele, Julia; Wagner, Matias; Haber, Benjamin; Kotzaeridou, Urania; Keren, Boris; Heron, Delphine; Mignot, Cyril; Heide, Solveig; Courtin, Thomas; Buratti, Julien; Murugasen, Serini; Donald, Kirsten A.; O'Heir, Emily; Moody, Shade; Kim, Katherine H.; Burton, Barbara K.; Yoon, Grace; Del Campo, Miguel; Masser-Frye, Diane; Kozenko, Mariya; Parkinson, Christina; Sell, Susan L.; Gordon, Patricia L.; Prokop, Jeremy W.; Karaa, Amel; Bupp, Caleb und Raby, Benjamin A. (2022): Heterozygous variants in MYH10 associated with neurodevelopmental disorders and congenital anomalies with evidence for primary cilia-dependent defects in Hedgehog signaling. In: Genetics in Medicine, Bd. 24, Nr. 10: S. 2065-2078

Abstract

PURPOSE: Nonmuscle myosin II complexes are master regulators of actin dynamics that play essential roles during embryogenesis with vertebrates possessing 3 nonmuscle myosin II heavy chain genes, MYH9, MYH10, and MYH14. As opposed to MYH9 and MYH14, no recognizable disorder has been associated with MYH10. We sought to define the clinical characteristics and molecular mechanism of a novel autosomal dominant disorder related to MYH10. METHODS: An international collaboration identified the patient cohort. CAS9-mediated knockout cell models were used to explore the mechanism of disease pathogenesis. RESULTS: We identified a cohort of 16 individuals with heterozygous MYH10 variants presenting with a broad spectrum of neurodevelopmental disorders and variable congenital anomalies that affect most organ systems and were recapitulated in animal models of altered MYH10 activity. Variants were typically de novo missense changes with clustering observed in the motor domain. MYH10 knockout cells showed defects in primary ciliogenesis and reduced ciliary length with impaired Hedgehog signaling. MYH10 variant overexpression produced a dominant-negative effect on ciliary length. CONCLUSION: These data presented a novel genetic cause of isolated and syndromic neurodevelopmental disorders related to heterozygous variants in the MYH10 gene with implications for disrupted primary cilia length control and altered Hedgehog signaling in disease pathogenesis. (C) 2022 American College of Medical Genetics and Genomics. Published by Elsevier Inc. All rights reserved.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 1098-3600
• Sprache: Englisch