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Extracellular proteomes of M-CSF (CSF-1) and GM-CSF-dependent macrophages.
MedLine Citation:
PMID:  20661257     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Macrophage colony-stimulating factor (M-CSF) (also known as CSF-1) and granulocyte-macrophage colony-stimulating factor (GM-CSF) have distinct effects on macrophage lineage populations, which are likely to be contributing to their functional heterogeneity. A comparative proteomic analysis of proteins released into culture media from such populations after M-CSF and GM-CSF exposure was carried out. Adherent macrophage populations, termed bone marrow-derived macrophage (BMM) and GM-BMM, were generated after treatment of murine bone marrow precursors with M-CSF and GM-CSF, respectively. Proteins in 16-h serum-free conditioned media (CM) were identified by two-dimensional gel electrophoresis and mass spectrometry. Respective protein profiles from BMM and GM-BMM CM were distinct and there was the suggestion of a switch from primarily signal peptide-driven secretion to non-classical secretion pathways from BMM to GM-BMM. Extracellular expression of cathepsins (lysosomal proteases) and their inhibitors seems to be a characteristic difference between these macrophage cell types with higher levels usually observed in BMM-CM. Furthermore, we have identified a number of proteins in BMM-CM and GM-BMM-CM that could be involved in various tissue regeneration and inflammatory (immune) processes, respectively. The uncharacterized protein C19orf10, a protein found at high levels in the synovial fluid of arthritis patients, was also differentially regulated; its extracellular levels were upregulated in the presence of GM-CSF.
Authors:
Mark J Bailey; Derek C Lacey; Bernard Va de Kok; Paul D Veith; Eric C Reynolds; John A Hamilton
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Publication Detail:
Type:  Journal Article     Date:  2010-07-27
Journal Detail:
Title:  Immunology and cell biology     Volume:  89     ISSN:  1440-1711     ISO Abbreviation:  Immunol. Cell Biol.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-02-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8706300     Medline TA:  Immunol Cell Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  283-93     Citation Subset:  IM    
Affiliation:
Department of Medicine, CRC for Chronic Inflammatory Diseases, The University of Melbourne, The Royal Melbourne Hospital, Parkville, Victoria, Australia.
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