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Perlecan, the 'jack of all trades' proteoglycan of cartilaginous weight-bearing connective tissues

Melrose, James, Hayes, Anthony Joseph, Whitelock, John M. and Little, Christopher B. 2008. Perlecan, the 'jack of all trades' proteoglycan of cartilaginous weight-bearing connective tissues. Bioessays 30 (5) , pp. 457-469. 10.1002/bies.20748

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Perlecan is a ubiquitous proteoglycan of basement membrane and vascularized tissues but is also present in articular cartilage, meniscus and intervertebral disc, which are devoid of basement membrane and predominantly avascular. It is a prominent pericellular proteoglycan in the transitory matrix of the cartilaginous rudiments that develop into components of diarthrodial joints and the axial skeleton, and it forms intricate perichondrial vessel networks that define the presumptive articulating surfaces of developing joints and line the cartilage canals in cartilaginous rudiments. Such vessels have roles in the nutrition of the expanding cell numbers in the developing joint. Perlecan sequesters a number of growth factors pericellularly (FGFs, PDGF, VEGF and CTGF) and through these promotes cell signalling, cell proliferation and differentiation. Perlecan also interacts with a diverse range of extracellular matrix proteins, stabilising and organising the ECM, and promoting collagen fibrillogenesis. Perlecan is a prominent pericellular component of mesenchymal cells from their earliest developmental stages through to maturation, forming cell–cell and cell–ECM interconnections that are suggestive of a role in mechanosensory processes important to tissue homeostasis

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > QM Human anatomy
Publisher: Wiley-Blackwell
ISSN: 0265-9247
Last Modified: 04 Jun 2017 08:17

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