» Articles » PMID: 20404101

Co-receptor Choice by V Alpha14i NKT Cells is Driven by Th-POK Expression Rather Than Avoidance of CD8-mediated Negative Selection

Overview
Journal J Exp Med
Date 2010 Apr 21
PMID 20404101
Citations 37
Authors
Affiliations
Soon will be listed here.
Abstract

Mouse natural killer T (NKT) cells with an invariant V alpha14-J alpha18 rearrangement (V alpha14 invariant [V alpha14i] NKT cells) are either CD4(+)CD8(-) or CD4(-)CD8(-). Because transgenic mice with forced CD8 expression in all T cells exhibited a profound NKT cell deficit, the absence of CD8 has been attributed to negative selection. We now present evidence that CD8 does not serve as a coreceptor for CD1d recognition and that the defect in development in CD8 transgene homozygous mice is the result of a reduction in secondary T cell receptor alpha rearrangements. Thymocytes from mice hemizygous for the CD8 transgene have a less severe rearrangement defect and have functional CD8(+) V alpha14i NKT cells. Furthermore, we demonstrate that the transcription factor Th, Poxviruses and Zinc finger, and Krüppel family (Th-POK) is expressed by V alpha14i NKT cells throughout their differentiation and is necessary both to silence CD8 expression and for the functional maturity of V alpha14i NKT cells. We therefore suggest that Th-POK expression is required for the normal development of V alpha14i NKT cells and that the absence of CD8 expression by these cells is a by-product of such expression, as opposed to the result of negative selection of CD8-expressing V alpha14i NKT cells.

Citing Articles

Markers and makers of NKT17 cells.

Liman N, Park J Exp Mol Med. 2023; 55(6):1090-1098.

PMID: 37258582 PMC: 10317953. DOI: 10.1038/s12276-023-01015-y.


A humanized mouse model for evaluation of invariant Natural Killer T cell responses.

Saavedra-Avila N, Dellabona P, Casorati G, Veerapen N, Besra G, Howell A Front Immunol. 2022; 13:1011209.

PMID: 36263021 PMC: 9574442. DOI: 10.3389/fimmu.2022.1011209.


Chemokine receptor CCR9 suppresses the differentiation of CD4CD8αα intraepithelial T cells in the gut.

Li C, Kim H, Prakhar P, Luo S, Crossman A, Ligons D Mucosal Immunol. 2022; 15(5):882-895.

PMID: 35778600 PMC: 9391308. DOI: 10.1038/s41385-022-00540-9.


Epigenetic DNA methylation of Zbtb7b regulates the population of double-positive CD4CD8 T cells in ulcerative colitis.

Xu H, Xu J, Yang M, Liang Y, Peng Q, Zhang Y J Transl Med. 2022; 20(1):289.

PMID: 35761286 PMC: 9235105. DOI: 10.1186/s12967-022-03477-6.


The Current Landscape of NKT Cell Immunotherapy and the Hills Ahead.

Nelson A, Lukacs J, Johnston B Cancers (Basel). 2021; 13(20).

PMID: 34680322 PMC: 8533824. DOI: 10.3390/cancers13205174.


References
1.
Leishman A, Naidenko O, Attinger A, Koning F, Lena C, Xiong Y . T cell responses modulated through interaction between CD8alphaalpha and the nonclassical MHC class I molecule, TL. Science. 2001; 294(5548):1936-9. DOI: 10.1126/science.1063564. View

2.
Pear W, Miller J, Xu L, Pui J, Soffer B, Quackenbush R . Efficient and rapid induction of a chronic myelogenous leukemia-like myeloproliferative disease in mice receiving P210 bcr/abl-transduced bone marrow. Blood. 1998; 92(10):3780-92. View

3.
Vugmeyster Y, Glas R, Perarnau B, Lemonnier F, Eisen H, Ploegh H . Major histocompatibility complex (MHC) class I KbDb -/- deficient mice possess functional CD8+ T cells and natural killer cells. Proc Natl Acad Sci U S A. 1998; 95(21):12492-7. PMC: 22858. DOI: 10.1073/pnas.95.21.12492. View

4.
Dave V, Allman D, Keefe R, Hardy R, Kappes D . HD mice: a novel mouse mutant with a specific defect in the generation of CD4(+) T cells. Proc Natl Acad Sci U S A. 1998; 95(14):8187-92. PMC: 20951. DOI: 10.1073/pnas.95.14.8187. View

5.
Matsuda J, Gapin L . Developmental program of mouse Valpha14i NKT cells. Curr Opin Immunol. 2005; 17(2):122-30. DOI: 10.1016/j.coi.2005.01.002. View