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Self inhibition of phagocytosis: the affinity of ‘Marker of Self’ CD47 for SIRPα dictates potency of inhibition but only at low expression levels

Phagocytes engulf foreign cells but not ‘self’ in part because self cells express CD47 as a ligand for signal regulatory protein SIRPα, which inhibits phagocytosis. Motivated by reports of upregulation of CD47 on both normal and cancerous stem cells [1] and also by polymorphisms in SIRPα [2], we sho...

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Detalhes bibliográficos
Main Authors: Tsai, Richard K., Rodriguez, Pia L., Discher, Dennis E.
Formato: Artigo
Idioma:Inglês
Publicado em: 2010
Assuntos:
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC2878922/
https://ncbi.nlm.nih.gov/pubmed/20299253
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.bcmd.2010.02.016
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