Journal
MATRIX BIOLOGY
Volume 75-76, Issue -, Pages 300-313Publisher
ELSEVIER
DOI: 10.1016/j.matbio.2017.11.006
Keywords
Extracellular matrix (ECM); Angiogenesis; Nociception; Fibrosis; Skeletal muscle; Myocardium
Categories
Funding
- National Institutes of Health [HL117216, CA177771]
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Thrombospondin-4 (TSP-4) belongs to the thrombospondin protein family that consists of five highly homologous members. A number of novel functions have been recently assigned to TSP-4 in cardiovascular and nervous systems, inflammation, cancer, and the motor unit, which have attracted attention to this extracellular matrix (ECM) protein. These newly discovered functions set TSP-4 apart from other thrombospondins. For example, TSP-4 promotes angiogenesis while other TSPs either prevent it or have no effect on new blood vessel growth; TSP-4 reduces fibrosis and collagen production while TSP-1 and TSP-2 promote fibrosis in several organs; unlike other TSPs, TSP-4 appears to have some structural functions in ECM. The current information about TSP-4 functions in different organs and physiological systems suggests that this evolutionary conserved protein is a major regulator of the extracellular matrix (ECM) organization and production and tissue remodeling during the embryonic development and response to injury. In this review article, we summarize the properties and functions of TSP-4 and discuss its role in tissue remodeling. (C) 2017 Elsevier B.V. All rights reserved.
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