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Nat Commun ; 14(1): 7922, 2023 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-38040679

RESUMO

Invariant natural killer T (NKT) cell subsets are defined based on their cytokine-production profiles and transcription factors. Their distribution is different in C57BL/6 (B6) and BALB/c mice, with a bias for NKT1 and NKT2/NKT17 subsets, respectively. Here, we show that the non-classical class I-like major histocompatibility complex CD1 molecules CD1d2, expressed in BALB/c and not in B6 mice, could not account for this difference. We find however that NKT cell subset distribution is intrinsic to bone marrow derived NKT cells, regardless of syngeneic CD1d-ligand recognition, and that multiple intrinsic factors are likely involved. Finally, we find that CD1d expression levels in combination with T cell antigen receptor signal strength could also influence NKT cell distribution and function. Overall, this study indicates that CD1d-mediated TCR signals and other intrinsic signals integrate to influence strain-specific NKT cell differentiation programs and subset distributions.


Assuntos
Células T Matadoras Naturais , Animais , Camundongos , Antígenos CD1/metabolismo , Antígenos CD1d/metabolismo , Diferenciação Celular , Células Matadoras Naturais , Camundongos Endogâmicos C57BL , Receptores de Antígenos de Linfócitos T/metabolismo , Subpopulações de Linfócitos T
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