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Single-cell gene expression profiling of interstitial macrophages exposed to hypoxia

GSE254606 Mus musculus Expression profiling by high throughput sequencing 6 samples Submitted 2024/04/15 Platform GPL24247
Summary
Employing single-cell transcriptomic analyses, we investigated the repertoire and functional profiles of pulmonary interstitial macrophages in response to exposure at 0, 1, 3, 7, and 21 days of hypobaric hypoxia (at an altitude of 5,486 meters). The repertoire and functional profiles of interstitial macrophages (IMs) undergo dynamic changes based on the duration of hypoxia exposure. Acute hypoxia leads to type 1 acute inflammatory responses in most IM populations, which largely subside by Day 7. The resolution of the inflammatory phase is succeeded by the accumulation of dysregulated IMs, contributing to abnormal pulmonary vascular repair and remodeling. The classical and alternative complement pathways may play distinct roles in regulating early inflammation and later vascular remodeling phases in pulmonary hypertension (PH) pathogenesis. These findings highlight the dynamic nature of IMs, emphasizing that understanding the timing and mechanisms through which they influence PH pathogenesis will contribute to the development of IM-specific therapeutic targets.
Published in
Single cell transcriptomic analyses reveal diverse and dynamic changes of distinct populations of lung interstitial macrophages in hypoxia-induced pulmonary hypertension
Kumar S, Mickael C, Kumar R et al. · Frontiers in immunology 2024 · PMID 38690277 · doi:10.3389/fimmu.2024.1372959
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Also filed as BioProject PRJNA1071130 and SRA study SRP486893. Searching any of these in the dataset finder brings you back here.

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