Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 22, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/ijms22062988
Keywords
aggrecan; versican; brevican; neurocan; hyalectan; lectican; proteoglycan; ADAMTS; extracellular matrix
Funding
- Ministerio Espanol de Ciencia, Innovacion y Universidades [RTI2018-099756B-100]
- Instituto Asturiano de Odolontologia, IAO
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The hyalectan family, including aggrecan, versican, brevican, and neurocan, plays essential roles in biological processes such as skeletal development and maintenance of the vascular and central nervous system. The ADAMTS family of metalloproteases further affects the extracellular matrix's structure and function through interactions with other matrix components or catalytic activity, targeting hyalectans as preferred substrates for bioactive fragment generation and specific functions.
The hyalectan family is composed of the proteoglycans aggrecan, versican, brevican and neurocan. Hyalectans, also known as lecticans, are components of the extracellular matrix of different tissues and play essential roles in key biological processes including skeletal development, and they are related to the correct maintenance of the vascular and central nervous system. For instance, hyalectans participate in the organization of structures such as perineural nets and in the regulation of neurite outgrowth or brain recovery following a traumatic injury. The ADAMTS (A Disintegrin and Metalloprotease domains, with thrombospondin motifs) family consists of 19 secreted metalloproteases. These enzymes also perform important roles in the structural organization and function of the extracellular matrix through interactions with other matrix components or as a consequence of their catalytic activity. In this regard, some of their preferred substrates are the hyalectans. In fact, ADAMTSs cleave hyalectans not only as a mechanism for clearance or turnover of proteoglycans but also to generate bioactive fragments which display specific functions. In this article we review some of the physiological and pathological effects derived from cleavages of hyalectans mediated by ADAMTSs.
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