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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Immunol
2018 ; 19
(1
): 76-84
Nephropedia Template TP
gab.com Text
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English Wikipedia
Engagement of MHC class I by the inhibitory receptor LILRB1 suppresses
macrophages and is a target of cancer immunotherapy
#MMPMID29180808
Barkal AA
; Weiskopf K
; Kao KS
; Gordon SR
; Rosental B
; Yiu YY
; George BM
; Markovic M
; Ring NG
; Tsai JM
; McKenna KM
; Ho PY
; Cheng RZ
; Chen JY
; Barkal LJ
; Ring AM
; Weissman IL
; Maute RL
Nat Immunol
2018[Jan]; 19
(1
): 76-84
PMID29180808
show ga
Exciting progress in the field of cancer immunotherapy has renewed the urgency of
the need for basic studies of immunoregulation in both adaptive cell lineages and
innate cell lineages. Here we found a central role for major histocompatibility
complex (MHC) class I in controlling the phagocytic function of macrophages. Our
results demonstrated that expression of the common MHC class I component
?(2)-microglobulin (?2M) by cancer cells directly protected them from
phagocytosis. We further showed that this protection was mediated by the
inhibitory receptor LILRB1, whose expression was upregulated on the surface of
macrophages, including tumor-associated macrophages. Disruption of either MHC
class I or LILRB1 potentiated phagocytosis of tumor cells both in vitro and in
vivo, which defines the MHC class I-LILRB1 signaling axis as an important
regulator of the effector function of innate immune cells, a potential biomarker
for therapeutic response to agents directed against the signal-regulatory protein
CD47 and a potential target of anti-cancer immunotherapy.
|Animals
[MESH]
|Cell Line, Tumor
[MESH]
|Histocompatibility Antigens Class I/*immunology/metabolism
[MESH]