Single-cell RNA-Seq reveals CVI-mAb-induced Lyve1+ M2-like macrophages reduce atherosclerotic plaque area in Apoe-/- mice.
Int Immunopharmacol
; 116: 109794, 2023 Mar.
Article
em En
| MEDLINE
| ID: mdl-36736225
ABSTRACT
BACKGROUND:
Atherosclerosis is a lipid imbalance-induced autoimmune disease. Macrophages participate in the development and progression of atherosclerosis. Although numerous studies have utilized single-cell RNA sequencing to identify the role of various macrophage phenotypes in atherosclerosis, the macrophage subpopulations that have therapeutic benefits against atherosclerosis are not fully understood.METHODS:
In this study, a single-cell RNA sequencing analysis was performed on the F4/80+ macrophages of apolipoprotein E-deficient (Apoe-/-) mice on a normal diet (ND), a high-fat diet (HFD), and a high-fat diet (HFD) with collagen VI monoclonal antibodies (CVI-mAb) treatment. A population of M2-like macrophages expressing the hyaluronan receptor Lyve1 was almost exclusively detectable in Apoe-/- mice on an HFD with CVI-mAb treatment, compared with other groups. Differential gene expression and gene ontology enrichment analyses revealed specific gene expression patterns that distinguished this macrophage subset and uncovered its functions.RESULTS:
Lyve1+ M2 macrophages appear to have specialized functions in lipid metabolism. Lyve1+ M2-like macrophages were sorted via fluorescence- activated cell sorting (FACS) and adoptively transferred to Apoe-/- mice fed an HFD.CONCLUSION:
Our result showed that Lyve1+ M2 macrophages could reduce the plaque areas in Apoe-/- mice.Palavras-chave
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Base de dados:
MEDLINE
Assunto principal:
Aterosclerose
/
Placa Aterosclerótica
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article