Abstract
The CCN family of growth factors is composed of six structurally related proteins including the cysteine-rich 61 (Cyr61), connective tissue growth factor (CTGF), nephroblastoma overexpressed (NOV), Wnt-1 induced secreted protein-1 (WISP-1), WISP-2 and WISP-3. Each family member consists of four conserved cysteine rich modular domains with sequence similarity to the insulin like growth factor binding proteins, von Willebrand factor, thrombospondin repeat and the growth factors cysteine knot. The CCN proteins demonstrate a wide variety of biological activities regulating cell adhesion, proliferation, survival, migration, invasion in vitro and tumorigenesis and angiogenesis in vivo. Both cancer promoting and inhibiting roles were proposed for several CCN proteins suggesting that contextual factors could regulate their activities. Consistent with this hypothesis, structural and experimental evidence indicate that the function of these proteins is modulated by their interaction with sulfated glycosaminoglycans. Because the CCN proteins are implicated in the tumorigenic process, they are potential targets for the development of cancer therapeutics. Modulation of their glycosaminoglycan interaction by exogenous, highly sulfated polysaccharides, oligosaccharides or glycosaminoglycan mimetics could prevent their participation in cancer progression. Understanding the structural requirements for their polysaccharide interaction should provide important information to generate glycosaminoglycan-based cancer therapeutics targeting the CCN family of proteins.
Keywords: ccn proteins, proteoglycan, glycosaminoglycan, tsr, heparin binding, cancer
Current Pharmaceutical Design
Title: Structural Basis and Therapeutic Implication of the Interaction of CCN Proteins with Glycoconjugates
Volume: 10 Issue: 31
Author(s): Luc Desnoyers
Affiliation:
Keywords: ccn proteins, proteoglycan, glycosaminoglycan, tsr, heparin binding, cancer
Abstract: The CCN family of growth factors is composed of six structurally related proteins including the cysteine-rich 61 (Cyr61), connective tissue growth factor (CTGF), nephroblastoma overexpressed (NOV), Wnt-1 induced secreted protein-1 (WISP-1), WISP-2 and WISP-3. Each family member consists of four conserved cysteine rich modular domains with sequence similarity to the insulin like growth factor binding proteins, von Willebrand factor, thrombospondin repeat and the growth factors cysteine knot. The CCN proteins demonstrate a wide variety of biological activities regulating cell adhesion, proliferation, survival, migration, invasion in vitro and tumorigenesis and angiogenesis in vivo. Both cancer promoting and inhibiting roles were proposed for several CCN proteins suggesting that contextual factors could regulate their activities. Consistent with this hypothesis, structural and experimental evidence indicate that the function of these proteins is modulated by their interaction with sulfated glycosaminoglycans. Because the CCN proteins are implicated in the tumorigenic process, they are potential targets for the development of cancer therapeutics. Modulation of their glycosaminoglycan interaction by exogenous, highly sulfated polysaccharides, oligosaccharides or glycosaminoglycan mimetics could prevent their participation in cancer progression. Understanding the structural requirements for their polysaccharide interaction should provide important information to generate glycosaminoglycan-based cancer therapeutics targeting the CCN family of proteins.
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Cite this article as:
Desnoyers Luc, Structural Basis and Therapeutic Implication of the Interaction of CCN Proteins with Glycoconjugates, Current Pharmaceutical Design 2004; 10 (31) . https://dx.doi.org/10.2174/1381612043382567
DOI https://dx.doi.org/10.2174/1381612043382567 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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