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Intracellular cryptococci suppress Fc-mediated cyclin D1 elevation.
MedLine Citation:
PMID:  20798836     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Cryptococcus neoformans (Cn) is the only encapsulated fungal pathogen pathogenic to humans and macrophages play a vital role in the Cn infection pathway. Previously we documented that phagocytosis or crosslinking of FcgammaR on macrophage cell surface promoted macrophage cell cycle progression via the activation of MAPK pathway. However, we seldom observed sustained macrophage growth after they phagocytosed live Cn. In fact, many macrophages were finally observed to undergo apoptotic changes after phagocytosis of live Cn. Here we report that cyclin D1 elevation in macrophages promoted by phagocytosis was suppressed by intracellular Cn cells. This suggests a novel cytotoxic mechanism for host cells of intracellular cryptococci.
Authors:
Yong Luo; Arturo Casadevall
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Communicative & integrative biology     Volume:  3     ISSN:  1942-0889     ISO Abbreviation:  Commun Integr Biol     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-08-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101478473     Medline TA:  Commun Integr Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  390-1     Citation Subset:  -    
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