RESEARCH ARTICLE Galnt1 Is Required for Normal Heart Valve Development and Cardiac Function E Tian1‡, Sharon R. Stevens2‡, Yu Guan2, Danielle A. Springer3, Stasia A. Anderson3, Matthew F. Starost4, Vyomesh Patel5¤, Kelly G. Ten Hagen1, Lawrence A. Tabak2* 1 Developmental Glycobiology Section, Laboratory of Cell and Developmental Biology, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, United States of America, 2 Section on Biological Chemistry, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, United States of America, 3 National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, United States of America, 4 Division of Veterinary Resources, National Institutes of Health, Bethesda, United States of America, 5 Oral and Pharyngeal Cancer Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, United States of America ¤ Current address: Cancer Research Initiatives Foundation, Sime Darby Medical Centre, Subang Jaya, Malaysia ‡ These authors contributed equally to this work. *
[email protected] Abstract Congenital heart valve defects in humans occur in approximately 2% of live births and are a major source of compromised cardiac function. In this study we demonstrate that normal OPEN ACCESS heart valve development and cardiac function are dependent upon Galnt1, the gene that en- Citation: Tian E, Stevens SR, Guan Y, Springer DA, codes a member of the family of glycosyltransferases (GalNAc-Ts) responsible for the initia- Anderson SA, Starost MF, et al. (2015) Galnt1 Is tion of mucin-type O-glycosylation. In the adult mouse, compromised cardiac function that Required for Normal Heart Valve Development and Cardiac Function.