作者: Erica M. Selva , Norbert Perrimon
DOI: 10.1016/S0065-230X(01)83003-7
关键词: Perlecan 、 Heparan sulfate 、 Syndecan 1 、 Transmembrane protein 、 Biochemistry 、 Golgi apparatus 、 Extracellular matrix 、 Biology 、 Signal transduction 、 Plasma protein binding
摘要: Publisher Summary Heparan sulfate proteoglycans (HSPGs) are composed of a protein core modified on specific serine residues by the addition heparan (HS) glucosaminoglycans (GAGs) synthesized in Golgi. Three distinct types proteins can serve as HSPG cores: transmembrane encoded syndecan genes, glycosylphosphatidylinositol (GPI) membrane-bound glypicans, and extracellular matrix secreted perlecan proteins. The chapter presents two major advances made understanding role HSPGs development cancer. First, studies Drosophila have identified many mutations either biosynthetic enzymes for example, Sugarless (Sgl), Sulfateless (Sfl), Tout velu (Ttv); or cores syndecans glypicans. Analysis mutant phenotypes has revealed critical roles modulating various growth factor signaling pathways. Second, linked to human cancers been isolated shown correspond defects biosynthesis HSPGs. explains importance cell provides insights into their functions. Modulating activity could influence caused aberrant signaling. concludes that constitute important targets therapeutics treat some tumors.