Abstract:
:Hematopoietic growth factors are glycoproteins of 15-70 kDa. Although much clinical success has been obtained using recombinant proteins produced in mammalian cell lines and in microbial fermentation processes, the full-length polypeptides necessarily are expensive to produce, require parenteral administration, and in some cases have provoked detrimental immune responses. With the availability of high throughput biological function and receptor binding assays it has become possible to screen millions, if not billions, of randomly produced organic compounds and relatively short peptides to identify lead compounds for the development of small molecular mimetics of hematopoietic growth factors. Herein the strategies used to screen libraries of small molecules and peptides and the successes in finding mimetics and antagonists for/to erythropoietin, granulocyte colony-stimulating factor, and thrombopoietin are reviewed. Finally, the structural study of mimetic-receptor complexes has provided us with many molecular details of growth factor-induced receptor activation and is likely to yield new insights into the molecular basis of hematopoietic signal transduction.
journal_name
Ann N Y Acad Scijournal_title
Annals of the New York Academy of Sciencesauthors
Kaushansky Kdoi
10.1111/j.1749-6632.2001.tb03582.xsubject
Has Abstractpub_date
2001-06-01 00:00:00pages
131-8eissn
0077-8923issn
1749-6632journal_volume
938pub_type
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