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The transcription factor Bhlhe40 programs mitochondrial regulation of resident CD8+ T cell fitness and functionality

ABSTRACT: The transcription factor Bhlhe40 programs mitochondrial regulation of resident CD8+ T cell fitness and functionality

PROVIDER: PRJNA558154 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9887310_1.fastq.gz	Fastqsanger.gz
	SRR9887310_2.fastq.gz	Fastqsanger.gz
	SRR9887311_1.fastq.gz	Fastqsanger.gz
	SRR9887311_2.fastq.gz	Fastqsanger.gz
	SRR9887312_1.fastq.gz	Fastqsanger.gz

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Similar Datasets

The transcription factor Bhlhe40 programs mitochondrial regulation of resident CD8+ T cell fitness and functionality

Project description:Tissue-resident memory CD8+ T cells (Trm) share characteristics and core residency gene programs with tumor-infiltrating lymphocytes (TILs). However, the transcriptional, metabolic and epigenetic regulation of Trm cell and TIL differentiation, maintenance and function are largely undefined. Furthermore, it is unknown whether metabolic and epigenetic manipulations can be employed to promote Trm/TIL functional programs for cancer immunotherapy. Here we report a critical mechanism programming the mitochondrial and epigenetic regulation of Trm/TIL functionality in situ. We found that mouse and human Trm/TIL expressed the transcription factor BHLHE40 and the BHLHE40-associated gene signature. Bhlhe40 was specifically required for Trm and TIL development and polyfunctionality. Local PD-1 signaling inhibited TIL Bhlhe40 expression, and Bhlhe40 was critical for TILs reinvigoration following anti-PD therapy. Mechanistically, Bhlhe40 sustained Trm/TIL mitochondrial fitness for the promotion of a functional epigenetic state. Building on these findings, we also identified an epigenetic and metabolic regimen that promoted Trm/TIL gene signatures associated with tissue residency and poly-functionality through in vitro T cell screening. Strikingly, this regimen empowered the anti-tumor activity of CD8+ T cells and possessed therapeutic potential even at an advanced tumor stage in mouse models. Our results provide mechanistic insights on the local regulation of Trm and TIL function, and offer a viable strategy for developing novel immunotherapeutic means for cancer.

2019-09-17 | GSE135278 | GEO

Microarray data for Bhlhe40-sufficient and -deficient resident macrophages

Project description:Most tissue-resident macrophage populations develop during embryogenesis, self-renew in the steady state, and can expand during type 2 immunity. Whether shared mechanisms regulate macrophage proliferation in homeostasis and disease is unclear. We found that the transcription factor Bhlhe40 was cell-intrinsically required in large peritoneal macrophages (LPMs) for self-renewal and maintenance, but was not required in other resident macrophages. Bhlhe40 was selectively necessary in LPMs for proliferation, but not polarization, in response to IL-4. During a helminth infection, Bhlhe40 was required for normal LPM cell cycling. Bhlhe40 repressed the expression of Maf and Mafb and directly promoted expression of cell cycle-related transcripts to enable proliferation of LPMs. Genomic sites bound by Bhlhe40 in LPMs included some co-bound by the macrophage lineage-determining factor PU.1 and others uniquely bound by Bhlhe40, including Maf and cell cycle-related loci. Our findings demonstrate a tissue-specific control mechanism regulating resident macrophage proliferation in homeostasis and type 2 immunity.

2019-04-30 | GSE125727 | GEO

The Transcription Factor Bhlhe40 Programs Mitochondrial Regulation of Resident CD8<sup>+</sup> T Cell Fitness and Functionality.

Project description:Tissue-resident memory CD8+ T (Trm) cells share core residency gene programs with tumor-infiltrating lymphocytes (TILs). However, the transcriptional, metabolic, and epigenetic regulation of Trm cell and TIL development and function is largely undefined. Here, we found that the transcription factor Bhlhe40 was specifically required for Trm cell and TIL development and polyfunctionality. Local PD-1 signaling inhibited TIL Bhlhe40 expression, and Bhlhe40 was critical for TIL reinvigoration following anti-PD-L1 blockade. Mechanistically, Bhlhe40 sustained Trm cell and TIL mitochondrial fitness and a functional epigenetic state. Building on these findings, we identified an epigenetic and metabolic regimen that promoted Trm cell and TIL gene signatures associated with tissue residency and polyfunctionality. This regimen empowered the anti-tumor activity of CD8+ T cells and possessed therapeutic potential even at an advanced tumor stage in mouse models. Our results provide mechanistic insights into the local regulation of Trm cell and TIL function.

| S-EPMC6903704 | biostudies-literature

Microarray data for Bhlhe40-sufficient and -deficient resident macrophages

Project description:Microarray data for Bhlhe40-sufficient and -deficient resident macrophages

| PRJNA517406 | ENA

Expression data from mouse differentiated Bhlhe40-GFPneg and Bhlhe40-GFPpos TH17 cells

Project description:Microarray data on TH17 cells from Bhlhe40-GFP reporter mice We used microarrays to detail the global programme of gene expression in polarized Bhlhe40-GFPneg and Bhlhe40-GFPpos TH17 cells Purified naÃ¯ve CD4 T cells from spleen were polarized under TH17 condition in vitro. On day 4, cells were stimulated with PMA and ionomycin, and sorted by their Bhlhe40-GFP expression prior to microarray analysis

2016-01-04 | E-GEOD-75407 | biostudies-arrayexpress

The role of RUNX2 and BHLHE40 in pathologically relevant CD4-positive tissue-resident T-cells in Crohn's disease.

Project description:Tissue-resident T-cells (TRM) are deeply involved in immune memory at the site of inflammation. Here, we identified two key transcription factors, RUNX2 and BHLHE40 as regulators of pathologically relevant CD4-positive TRM in the inflamed gut mucosa of Crohn’s disease patients.

2025-08-14 | GSE275362 | GEO

The role of RUNX2 and BHLHE40 in pathologically relevant CD4-positive tissue-resident T-cells in Crohn's disease. (scMultiome)

2025-08-14 | GSE280714 | GEO

The role of RUNX2 and BHLHE40 in pathologically relevant CD4-positive tissue-resident T-cells in Crohn's disease. (CUT&RUN)

2025-08-14 | GSE303141 | GEO

Chromatin immunoprecipitation sequencing (ChIP-Seq) for Bhlhe40 from naïve and IL-4c-stimulated large peritoneal macrophages (LPMs)

2019-04-30 | GSE125729 | GEO

Bhlhe40 and Bhlhe41 transcription factors regulate alveolar macrophage self-renewal and identity

Project description:Tissues in multicellular organisms are ‘serviced’ by resident macrophages, which perform both generic and tissue-specific functions. The latter relies on unique tissue-specific molecular programs induced by signals from the microenvironment and executed through a combinatorial action of tissue-specific and broadly expressed transcriptional regulators. Here, we identify the transcription factors Bhlhe40 and Bhlhe41 as novel regulators of alveolar macrophages (AMs) – a population that provides the first line of immune defense and executes homeostatic functions in lung alveoli. In the absence of these factors, AMs exhibited decreased proliferation that resulted in a severe disadvantage of knockout AMs in a competitive setting. Gene expression analyses revealed a broad cell-intrinsic footprint of Bhlhe40/Bhlhe41-deficiency manifested by a downregulation of AM signature genes and induction of signature genes of other macrophage lineages. Genome-wide characterization of Bhlhe40 DNA binding suggested that these transcription factors directly repress the expression of lineage-inappropriate genes in AMs. Taken together, these results identify Bhlhe40 and Bhlhe41 as key regulators of AM self-renewal and guardians of their identity.

2019-07-30 | GSE135018 | GEO

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