JMJD3 regulates CD4+ T cell trafficking by targeting actin cytoskeleton regulatory gene Pdlim4

Chuntang Fu, Qingtian Li, Jia Zou, Changsheng Xing, Mei Luo, Bingnan Yin, Junjun Chu, Jiaming Yu, Xin Liu, Helen Y. Wang, Rong Fu Wang

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Histone H3K27 demethylase JMJD3 plays a critical role in gene expression and T cell differentiation. However, the role and mechanisms of JMJD3 in T cell trafficking remain poorly understood. Here, we show that JMJD3 deficiency in CD4+ T cells resulted in an accumulation of T cells in the thymus and reduction of T cell number in the secondary lymphoid organs. We identified PDLIM4 as a significantly downregulated target gene in JMJD3-deficient CD4+ T cells by gene profiling and ChIP-Seq analyses. We further showed that PDLIM4 functioned as an adaptor protein to interact with sphingosine-1 phosphate receptor 1 (S1P1) and filamentous actin (F-actin), thus serving as a key regulator of T cell trafficking. Mechanistically, JMJD3 bound to the promoter and gene-body regions of the Pdlim4 gene and regulated its expression by interacting with zinc finger transcription factor KLF2. Our findings have identified Pdlim4 as a JMJD3 target gene that affects T cell trafficking by cooperating with S1P1 and have provided insights into the molecular mechanisms by which JMJD3 regulates genes involved in T cell trafficking.

Original languageEnglish (US)
Pages (from-to)4745-4757
Number of pages13
JournalJournal of Clinical Investigation
Volume129
Issue number11
DOIs
StatePublished - Nov 1 2019

ASJC Scopus subject areas

  • Medicine(all)

Fingerprint Dive into the research topics of 'JMJD3 regulates CD4<sup>+</sup> T cell trafficking by targeting actin cytoskeleton regulatory gene Pdlim4'. Together they form a unique fingerprint.

Cite this