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Stem Cell Factor Receptor/c-Kit: From Basic Science to Clinical Implications.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Ludwig Institute for Cancer Research.
Experimental Clinical Chemistry, Wallenberg Laboratory, Department of Laboratory Medicine, Lund University, Skåne University Hospital, Malmö, Sweden.
2012 (English)In: Physiological Reviews, ISSN 0031-9333, E-ISSN 1522-1210, Vol. 92, no 4, 1619-1649 p.Article, review/survey (Refereed) Published
Abstract [en]

Stem cell factor (SCF) is a dimeric molecule that exerts its biological functions by binding to and activating the receptor tyrosine kinase c-Kit. Activation of c-Kit leads to its autophosphorylation and initiation of signal transduction. Signaling proteins are recruited to activated c-Kit by certain interaction domains (e.g., SH2 and PTB) that specifically bind to phosphorylated tyrosine residues in the intracellular region of c-Kit. Activation of c-Kit signaling has been found to mediate cell survival, migration, and proliferation depending on the cell type. Signaling from c-Kit is crucial for normal hematopoiesis, pigmentation, fertility, gut movement, and some aspects of the nervous system. Deregulated c-Kit kinase activity has been found in a number of pathological conditions, including cancer and allergy. The observation that gain-of-function mutations in c-Kit can promote tumor formation and progression has stimulated the development of therapeutics agents targeting this receptor, e.g., the clinically used inhibitor imatinib mesylate. Also other clinically used multiselective kinase inhibitors, for instance, sorafenib and sunitinib, have c-Kit included in their range of targets. Furthermore, loss-of-function mutations in c-Kit have been observed and shown to give rise to a condition called piebaldism. This review provides a summary of our current knowledge regarding structural and functional aspects of c-Kit signaling both under normal and pathological conditions, as well as advances in the development of low-molecular-weight molecules inhibiting c-Kit function.

Place, publisher, year, edition, pages
2012. Vol. 92, no 4, 1619-1649 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-184557DOI: 10.1152/physrev.00046.2011ISI: 000310055900004PubMedID: 23073628OAI: oai:DiVA.org:uu-184557DiVA: diva2:566654
Available from: 2012-11-09 Created: 2012-11-09 Last updated: 2012-11-27Bibliographically approved

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