Transcriptomic profiling and regulatory pathways of cardiac resident macrophages in aging

Cardiovascular diseases are an array of age-related disorders, and accumulating evidence suggests a link between cardiac resident macrophages (CRMs) and the age-related disorders. However, how does CRMs alter with aging remains elusive. In the present study, aged mice (20 months old) have been emplo...

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Veröffentlicht in:Cellular and molecular life sciences : CMLS 2024-12, Vol.81 (1), p.220-220, Article 220
Hauptverfasser: Xia, Guofang, Zhu, Simeng, Liu, Yujia, Pan, Jingwei, Wang, Xiaoqing, Shen, Chengxing, Du, Ailian, Xu, Congfeng
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container_title Cellular and molecular life sciences : CMLS
container_volume 81
creator Xia, Guofang
Zhu, Simeng
Liu, Yujia
Pan, Jingwei
Wang, Xiaoqing
Shen, Chengxing
Du, Ailian
Xu, Congfeng
description Cardiovascular diseases are an array of age-related disorders, and accumulating evidence suggests a link between cardiac resident macrophages (CRMs) and the age-related disorders. However, how does CRMs alter with aging remains elusive. In the present study, aged mice (20 months old) have been employed to check for their cardiac structural and functional alterations, and the changes in the proportion of CRM subsets as well, followed by sorting of CRMs, including C-C Motif Chemokine Receptor 2 (CCR2) + and CCR2 – CRMs, which were subjected to Smart-Seq. Integrated analysis of the Smart-Seq data with three publicly available single-cell RNA-seq datasets revealed that inflammatory genes were drastic upregulated for both CCR2 + and CCR2 – CRMs with aging, but genes germane to wound healing were downregulated for CCR2 – CRMs, suggesting the differential functions of these two subsets. More importantly, inflammatory genes involved in damage sensing, complement cascades, and phagocytosis were largely upregulated in CCR2 – CRMs, implying the imbalance of inflammatory response upon aging. Our work provides a comprehensive framework and transcriptional resource for assessing the impact of aging on CRMs with a potential for further understanding cardiac aging.
doi_str_mv 10.1007/s00018-024-05235-x
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subjects Age related diseases
Aging
Aging - genetics
Aging - metabolism
Animals
Biochemistry
Biomedical and Life Sciences
Biomedicine
Cardiovascular diseases
CC chemokine receptors
Cell Biology
Chemokine receptors
Down-regulation
Gene Expression Profiling
Genes
Inflammation
Inflammation - genetics
Inflammation - metabolism
Inflammation - pathology
Inflammatory response
Life Sciences
Macrophages
Macrophages - metabolism
Male
Mice
Mice, Inbred C57BL
Myocardium - metabolism
Original
Original Article
Phagocytosis
Receptors, CCR2 - genetics
Receptors, CCR2 - metabolism
Signal Transduction
Single-Cell Analysis
Structure-function relationships
Transcriptome
Transcriptomics
Wound healing
title Transcriptomic profiling and regulatory pathways of cardiac resident macrophages in aging
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