PMID- 21497984 OWN - NLM STAT- MEDLINE DCOM- 20110928 LR - 20110613 IS - 1432-0436 (Electronic) IS - 0301-4681 (Linking) VI - 81 IP - 5 DP - 2011 Jun TI - Tenascin C may regulate the recruitment of smooth muscle cells during coronary artery development. PG - 299-306 LID - 10.1016/j.diff.2011.03.002 [doi] AB - Tenascin C (TNC) is an extracellular glycoprotein that is thought to be involved in tissue remodeling during organogenesis and regeneration. Using avian embryonic hearts, we investigated the spatiotemporal expression patterns of TNC during the formation of the proximal coronary artery. Immunohistochemistry showed that TNC was deposited around the developing coronary stem and that TNC colocalized with vascular smooth muscle alpha-actin. A quail-chick chimera, in which a quail proepicardial organ (PEO) had been transplanted, showed that quail tissue-derived cells contributed to the establishment of the endothelial and mural cells of the proximal coronary artery, and the quail tissue-derived mural cells displayed TNC. Proepicardial cells cultured in TNC showed the myofibroblast/smooth muscle cell phenotype and neutralizing anti-TNC antibody suppressed the expression of smooth muscle markers. These observations suggest that TNC plays a role in the mural smooth muscle development of the nascent proximal coronary artery. CI - Copyright (c) 2011 International Society of Differentiation. Published by Elsevier B.V. All rights reserved. FAU - Ando, Katsumi AU - Ando K AD - Health Sciences Saitama Prefectural University, Japan. FAU - Takahashi, Makiko AU - Takahashi M FAU - Yamagishi, Toshiyuki AU - Yamagishi T FAU - Miyagawa-Tomita, Sachiko AU - Miyagawa-Tomita S FAU - Imanaka-Yoshida, Kyoko AU - Imanaka-Yoshida K FAU - Yoshida, Toshimichi AU - Yoshida T FAU - Nakajima, Yuji AU - Nakajima Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110416 PL - England TA - Differentiation JT - Differentiation; research in biological diversity JID - 0401650 RN - 0 (Actins) RN - 0 (Tenascin) SB - IM MH - Actins/*metabolism MH - Animals MH - Cell Culture Techniques MH - Cell Differentiation/physiology MH - Chick Embryo MH - Coronary Vessels/*embryology/*metabolism MH - Heart/embryology MH - Immunohistochemistry/methods MH - Muscle Development MH - Muscle, Smooth, Vascular/cytology/*metabolism MH - Organogenesis MH - Pericardium/*cytology/embryology/metabolism MH - Quail MH - Tenascin/biosynthesis/*genetics/*metabolism EDAT- 2011/04/19 06:00 MHDA- 2011/09/29 06:00 CRDT- 2011/04/19 06:00 PHST- 2010/10/12 00:00 [received] PHST- 2011/03/18 00:00 [revised] PHST- 2011/03/21 00:00 [accepted] PHST- 2011/04/19 06:00 [entrez] PHST- 2011/04/19 06:00 [pubmed] PHST- 2011/09/29 06:00 [medline] AID - S0301-4681(11)00047-8 [pii] AID - 10.1016/j.diff.2011.03.002 [doi] PST - ppublish SO - Differentiation. 2011 Jun;81(5):299-306. doi: 10.1016/j.diff.2011.03.002. Epub 2011 Apr 16.