Innate PLZF+CD4+ αβ T cells develop and expand in the absence of Itk.
Innate PLZF+CD4+ αβ T cells develop and expand in the absence of Itk.
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DOI:
10.4049/jimmunol.1302058
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发表时间:
2014-07-15
期刊:
影响因子:
--
通讯作者:
Berg LJ
中科院分区:
文献类型:
--
作者:
Prince AL;Watkin LB;Yin CC;Selin LK;Kang J;Schwartzberg PL;Berg LJ
T cell development in the thymus produces multiple lineages of cells, including innate T cells. Studies in mice harboring alterations in TCR signaling proteins or transcriptional regulators have revealed an expanded population of CD4+ innate T cells in the thymus that produce IL-4 and express the transcription factor PLZF. In these mice, IL-4 produced by the CD4+ PLZF+ T cell population leads to the conversion of conventional CD8+ thymocytes into innate CD8+ T cells resembling memory T cells expressing Eomesodermin. The expression of PLZF, the signature iNKT cell transcription factor, in these innate CD4+ T cells suggests that they might be a subset of αβ or γδ TCR+ NKT cells or MAIT cells. To address these possibilities, we characterized the CD4+ PLZF+ innate T cells in itk-/- mice. We show that itk-/- innate PLZF+ CD4+ T cells are not CD1d-dependent NKT cells, MR1-dependent MAIT cells, nor γδ T cells. Further, although the itk-/- innate PLZF+ CD4+ T cells express αβ TCRs, neither β2m-dependent MHC class I nor any MHC class II molecules are required for their development. In contrast to iNKT cells and MAIT cells, this population has a highly diverse TCRα chain repertoire. Analysis of peripheral tissues indicates that itk-/- innate PLZF+ CD4+ T cells preferentially home to spleen and mesenteric lymph nodes due to increased expression of gut-homing receptors, and that their expansion is regulated by commensal gut flora. These data support the conclusion that itk-/- innate PLZF+ CD4+ T cells are a novel subset of innate T cells.
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影响因子:
30.5
作者:
通讯作者:
--
影响因子:
32.4
作者:
Li, Wei;Sofi, M. Hanief;Chang, Cheong-Hee
通讯作者:
Chang, Cheong-Hee
DOI:
10.1084/jem.190.12.1869
发表时间:
1999-12-20
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Chiu NM;Wang B;Kerksiek KM;Kurlander R;Pamer EG;Wang CR
通讯作者:
Wang CR
影响因子:
15.3
作者:
Lantz, Olivier;Bendelac, Albert
通讯作者:
Bendelac, Albert
影响因子:
64.8
作者:
Elahi, Shokrollah;Ertelt, James M.;Kinder, Jeremy M.;Jiang, Tony T.;Zhang, Xuzhe;Xin, Lijun;Chaturvedi, Vandana;Strong, Beverly S.;Qualls, Joseph E.;Steinbrecher, Kris A.;Kalfa, Theodosia A.;Shaaban, Aimen F.;Way, Sing Sing
通讯作者:
Way, Sing Sing