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Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [RNA-seq]

ABSTRACT: Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [RNA-seq]

PROVIDER: PRJNA963000 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR24348978_1.fastq.gz	Fastqsanger.gz
	SRR24348978_2.fastq.gz	Fastqsanger.gz
	SRR24348979_1.fastq.gz	Fastqsanger.gz
	SRR24348979_2.fastq.gz	Fastqsanger.gz
	SRR24348980_1.fastq.gz	Fastqsanger.gz

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Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [ATAC-seq 72h post-LPS]

Project description:Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis.

2026-02-20 | GSE319365 | GEO

Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [RNA-seq]

Project description:Recent studies suggest that training of innate immune cells such as tissue-resident macrophages by repeated noxious stimuli can heighten host defense responses. However, it remains unclear whether trained immunity of tissue-resident macrophages also comprises enhanced injury resolution capacity to counterbalance the heightened inflammatory responses. Here, we studied lung-resident alveolar macrophages (AMs) pre-challenged with either the bacterial endotoxin or with Pseudomonas aeruginosa and observed that these trained AMs showed greater resilience to pathogen-induced cell death. Transcriptomic analysis, and functional assays showed greater capacity of trained AMs to efferocytosis of cellular- debris, and facilitate injury resolution. Single-cell high-dimensional mass-cytometry analysis and lineage tracing demonstrated that training induces an expansion of a MERTKhiMarcohiCD163+F4/80low lung-resident AMs subset with pro-resolving phenotypes. Training epigenetically reprogrammed AMs to express a higher level of the transcription factor KLF4 which in turn upregulates the efferocytosis receptor MERTK. Adoptive transfer of these trained AMs restricted inflammatory lung injury in recipient mice exposed to lethal Pseudomonas aeruginosa. Thus, our study has identified a unique subset of tissue-resident trained macrophages which prevent hyper-inflammation and restore tissue homeostasis following pathogen challenge.

2023-08-16 | GSE231218 | GEO

Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [ATAC-seq]

2023-08-16 | GSE231217 | GEO

Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis.

Project description:Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis.

| PRJNA962998 | ENA

Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [2]

Project description:Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [2]

| PRJNA1423170 | ENA

Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [ATAC-seq]

Project description:Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [ATAC-seq]

| PRJNA963001 | ENA

Trained immunity of alveolar macrophages enhances injury resolution via KLF4-MERTK-mediated efferocytosis.

Project description:Recent studies suggest that training of innate immune cells such as tissue-resident macrophages by repeated noxious stimuli can heighten host defense responses. However, it remains unclear whether trained immunity of tissue-resident macrophages also enhances injury resolution to counterbalance the heightened inflammatory responses. Here, we studied lung-resident alveolar macrophages (AMs) prechallenged with either the bacterial endotoxin or with Pseudomonas aeruginosa and observed that these trained AMs showed greater resilience to pathogen-induced cell death. Transcriptomic analysis and functional assays showed greater capacity of trained AMs for efferocytosis of cellular debris and injury resolution. Single-cell high-dimensional mass cytometry analysis and lineage tracing demonstrated that training induces an expansion of a MERTKhiMarcohiCD163+F4/80low lung-resident AM subset with a proresolving phenotype. Reprogrammed AMs upregulated expression of the efferocytosis receptor MERTK mediated by the transcription factor KLF4. Adoptive transfer of these trained AMs restricted inflammatory lung injury in recipient mice exposed to lethal P. aeruginosa. Thus, our study has identified a subset of tissue-resident trained macrophages that prevent hyperinflammation and restore tissue homeostasis following repeated pathogen challenges.

| S-EPMC10450795 | biostudies-literature

Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis.

Project description:This SuperSeries is composed of the SubSeries listed below.

2023-08-16 | GSE231219 | GEO

Trained immunity of alveolar macrophages promotes injury resolution by enhancing KLF4-MERTK-mediated efferocytosis [2]

Project description:This SuperSeries is composed of the SubSeries listed below.

2026-02-12 | GSE319375 | GEO

Macrophage-derived KIF13B acts as a potential therapeutic target in atherosclerosis by enhancing MERTK-mediated efferocytosis [RNA-Seq]

Project description:Macrophage-derived KIF13B acts as a potential therapeutic target in atherosclerosis by enhancing MERTK-mediated efferocytosis [RNA-Seq]

| PRJNA1269541 | ENA

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