Integrative single-cell meta-analysis reveals disease-relevant vascular cell states and markers in human atherosclerosis.
Cell Rep
; 42(11): 113380, 2023 11 28.
Article
em En
| MEDLINE
| ID: mdl-37950869
Coronary artery disease (CAD) is characterized by atherosclerotic plaque formation in the arterial wall. CAD progression involves complex interactions and phenotypic plasticity among vascular and immune cell lineages. Single-cell RNA-seq (scRNA-seq) studies have highlighted lineage-specific transcriptomic signatures, but human cell phenotypes remain controversial. Here, we perform an integrated meta-analysis of 22 scRNA-seq libraries to generate a comprehensive map of human atherosclerosis with 118,578 cells. Besides characterizing granular cell-type diversity and communication, we leverage this atlas to provide insights into smooth muscle cell (SMC) modulation. We integrate genome-wide association study data and uncover a critical role for modulated SMC phenotypes in CAD, myocardial infarction, and coronary calcification. Finally, we identify fibromyocyte/fibrochondrogenic SMC markers (LTBP1 and CRTAC1) as proxies of atherosclerosis progression and validate these through omics and spatial imaging analyses. Altogether, we create a unified atlas of human atherosclerosis informing cell state-specific mechanistic and translational studies of cardiovascular diseases.
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Base de dados:
MEDLINE
Assunto principal:
Doença da Artéria Coronariana
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Aterosclerose
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Placa Aterosclerótica
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Infarto do Miocárdio
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article