Now recognized as a reservoir for growth factors and cytokines modulating cell activation status and turnover, proteoglycans have stimulated great amount of interest and research. In Proteoglycans: Methods and Protocols, experts in the field examine issues of basic concepts and up-to-date analysis methods for proteoglycan and glycosaminoglycan (GAG) at the protein and saccharide levels. The volume continues with the multifunctional aspect of proteoglycans, highlighted through three relevant examples of proteoglycans with highly different strucutures: serglycin, aggrecan, and heparin...