Abstract:
:Helminth infection leads to the local proliferation and accumulation of macrophages in tissues. However, the function of macrophages during helminth infection remains unclear. SH2-containing inositol 5'-phosphatase 1 (Ship1, Inpp5d) is a lipid phosphatase that has been shown to play a critical role in macrophage function. Here, we identify a critical role for Ship1 in the negative regulation of interleukin (IL)-12/23p40 production by macrophages during infection with the intestinal helminth parasite Trichuris muris. Mice with myeloid cell-specific deletion of Ship1 (Ship1(ΔLysM) mice) develop a non-protective T-helper type 1 cell response and fail to expel parasites. Ship1-deficient macrophages produce heightened levels of IL-12/23p40 in vitro and in vivo and antibody blockade of IL-12/23p40 renders Ship1(ΔLysM) mice resistant to Trichuris infection. Our results identify a critical role for the negative regulation of IL-12/23p40 production by macrophages in the development of a protective T(H)2 cell response.
journal_name
Mucosal Immunoljournal_title
Mucosal immunologyauthors
Hadidi S,Antignano F,Hughes MR,Wang SK,Snyder K,Sammis GM,Kerr WG,McNagny KM,Zaph Cdoi
10.1038/mi.2012.29subject
Has Abstractpub_date
2012-09-01 00:00:00pages
535-43issue
5eissn
1933-0219issn
1935-3456pii
mi201229journal_volume
5pub_type
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