title: Identification and detection of the periostin gene in cardiac development.
abstract: Periostin, a member of the fasciclin gene family, acts as a cell adhesion molecule through binding to cell surface integrins. Periostin expression has previously been shown to increase substantially following transforming growth factor beta (TGF-beta) and bone morphogenetic protein stimulation. As these molecules are indispensable for cardiac development, we sought to clone the chicken ortholog of periostin and evaluate its spatiotemporal expression pattern during heart morphogenesis. We show by Northern analysis, whole mount and section in situ hybridization experiments that periostin is predominantly expressed in the developing endothelium of the ventricular trabeculae as well as in the endothelium and mesenchyme of the outflow tract and atrioventricular endocardial cushions. Cardiac expression continues into fetal development where periostin is seen predominantly in the valve leaflets and supporting chordae tendinae.
authors.affiliation: Department of Cell Biology and Anatomy, Medical University of South Carolina, Charleston, SC 29425, USA.
authors.forename: Russell A
authors.initials: RA
authors.lastname: Norris
authors.forename: Christine B
authors.initials: CB
authors.lastname: Kern
authors.forename: Andy
authors.initials: A
authors.lastname: Wessels
authors.forename: E Iris
authors.initials: EI
authors.lastname: Moralez
authors.forename: Roger R
authors.initials: RR
authors.lastname: Markwald
authors.forename: Corey H
authors.initials: CH
authors.lastname: Mjaatvedt
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D015152:Blotting, Northern; D015815:Cell Adhesion Molecules / Q000235:genetics* / Q000378:metabolism; D002645:Chickens; D003001:Cloning, Molecular; D004727:Endothelium / Q000378:metabolism; D018507:Gene Expression Regulation, Developmental; D006321:Heart / Q000196:embryology*; D006351:Heart Valves / Q000196:embryology*; D006352:Heart Ventricles / Q000378:metabolism; D017403:In Situ Hybridization; D008969:Molecular Sequence Data; D015347:RNA Probes; D017386:Sequence Homology, Amino Acid
chemical_list: D015815:Cell Adhesion Molecules; D015347:RNA Probes