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BATF and BATF3 deficiency alters CD8+ effector/exhausted T cells balance in skin transplantation.


ABSTRACT:

Background

It is well-established that CD8+ T-cells play a critical role in graft rejection. The basic leucine zipper ATF-like transcription factor (BATF) and BATF3 are transcriptional factors expressed in T lymphocytes. Herein, we investigated the functions of BATF and BATF3 in the differentiation and exhaustion of CD8+ T cells following alloantigen activation.

Methods

Wild-type CD8+ T cells, BATF-deficient (Batf-/-) CD8+ T cells, and CD8+ T cells deficient in both BATF and BATF3 (Batf-/-Batf3-/-) were transferred to B6.Rag1-/- mice, which received skin allografts from BALB/c mice. Flow cytometry was conducted to investigate the number of CD8+ T cells and the percentage of effector subsets.

Results

BATF expression positively correlated with effector CD8+ T cell differentiation. BATF and BATF3 deficiency promoted skin allograft long-term survival and attenuated the CD8+ T cell allo-response and cytokine secretion. Finally, BATF and BATF3 deficiency prompted the generation of exhausted CD8+ T cells.

Conclusions

Overall, our findings provide preliminary evidence that both BATF and BATF3 deficiency influences the differentiation of effector CD8+ T cells and mediates the exhaustion of CD8+ T cells, prolonging transplant survival. Targeting BATF and BATF3 to inhibit CD8+ T cell function has huge prospects for application as a therapeutic approach to prevent transplant rejection.

SUBMITTER: Li C 

PROVIDER: S-EPMC10832090 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

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Publications

BATF and BATF3 deficiency alters CD8+ effector/exhausted T cells balance in skin transplantation.

Li Chenghao C   Liu Zongtao Z   Wang Zihao Z   Yim Wai Yen WY   Huang Yajun Y   Chen Yuqi Y  

Molecular medicine (Cambridge, Mass.) 20240131 1


<h4>Background</h4>It is well-established that CD8<sup>+</sup> T-cells play a critical role in graft rejection. The basic leucine zipper ATF-like transcription factor (BATF) and BATF3 are transcriptional factors expressed in T lymphocytes. Herein, we investigated the functions of BATF and BATF3 in the differentiation and exhaustion of CD8<sup>+</sup> T cells following alloantigen activation.<h4>Methods</h4>Wild-type CD8<sup>+</sup> T cells, BATF-deficient (Batf<sup>-/-</sup>) CD8<sup>+</sup> T c  ...[more]

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