Single-cell transcriptome analysis reveals cellular heterogeneity and highlights Fstl1-regulated alveolar myofibroblasts in mouse lung at birth.
Genomics
; 115(5): 110677, 2023 09.
Article
in En
| MEDLINE
| ID: mdl-37406975
ABSTRACT
The matricellular protein, follistatin-like 1 (FSTL1), regulates lung development and saccular formation. Here, we employed single-cell RNA sequencing (scRNA-seq) to construct a transcriptomic atlas of 22,774 individual cells from wild-type (WT) and Fstl1-/- lung (E18.5) samples and identified 27 cell subtypes. We observed abnormal population sizes and gene expression profiles in diverse cell subtypes in Fstl1-/- lung samples. We identified Pdgfra and Tgfbi as genetic markers specifically expressed in postnatal myofibroblasts (MyoFBs). Fstl1 deletion decreased the number of MyoFB cells and downregulated their roles in ECM organization and muscle tissue/vasculature development, partly through the TGF-ß1/BMP4 signaling pathway. Our data provide a single-cell view of the cellular heterogeneity and the molecular mechanisms underlying abnormal saccular formation and atelectatic lungs in Fstl1-/- mice.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Follistatin-Related Proteins
/
Myofibroblasts
/
Lung
Limits:
Animals
Language:
En
Journal:
Genomics
Journal subject:
GENETICA
Year:
2023
Document type:
Article
Affiliation country:
China