Lethal giant larvae-1 deficiency enhances the CD8(+) effector T-cell response to antigen challenge in vivo.
Immunol Cell Biol
; 94(3): 306-11, 2016 Mar.
Article
in En
| MEDLINE
| ID: mdl-26391810
ABSTRACT
Lethal giant larvae-1 (Lgl-1) is an evolutionary conserved protein that regulates cell polarity in diverse lineages; however, the role of Lgl-1 in the polarity and function of immune cells remains to be elucidated. To assess the role of Lgl-1 in T cells, we generated chimeric mice with a hematopoietic system deficient for Lgl-1. Lgl-1 deficiency did not impair the activation or function of peripheral CD8(+) T cells in response to antigen presentation in vitro, but did skew effector and memory T-cell differentiation. When challenged with antigen-expressing virus or tumor, Lgl-1-deficient mice displayed altered T-cell responses. This manifested in a stronger antiviral and antitumor effector CD8(+) T-cell response, the latter resulting in enhanced control of MC38-OVA tumors. These results reveal a novel role for Lgl-1 in the regulation of virus-specific T-cell responses and antitumor immunity.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Glycoproteins
/
CD8-Positive T-Lymphocytes
/
Antigens
Limits:
Animals
Language:
En
Journal:
Immunol Cell Biol
Journal subject:
ALERGIA E IMUNOLOGIA
Year:
2016
Document type:
Article
Affiliation country:
Australia