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Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2017 ; 114 (39): 10449-54 Nephropedia Template TP
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CD1d-Restricted pathways in hepatocytes control local natural killer T cell homeostasis and hepatic inflammation #MMPMID28893990
Proc Natl Acad Sci U S A 2017[Sep]; 114 (39): 10449-54 PMID28893990show ga
Invariant natural killer T (iNKT) cells recognize lipid antigens in the context of CD1d and have potent effects on immunity. Control of iNKT cells is critical to prevent inflammation, but the mechanisms that maintain homeostasis of iNKT cells in peripheral tissues are incompletely understood. Here we demonstrate that hepatocytes promote the apoptosis of local, liver-resident iNKT cells in a manner dependent on CD1d. In the absence of hepatocyte CD1d or microsomal triglyceride transfer protein, a protein responsible for lipid transfer onto CD1d, hepatic iNKT cell numbers are increased, which is associated with susceptibility to iNKT cell-dependent hepatitis. This work thus reveals a pathway of peripheral induction of immune tolerance, which limits susceptibility to iNKT cell-dependent inflammation in the liver.