Cited by 258Atherosclerosis and Cardiovascular DiseasesCholesterol and Lipid MetabolismLipoproteins and Cardiovascular Health

Foam Cells in Atherosclerosis: Novel Insights Into Its Origins, Consequences, and Molecular Mechanisms

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Gui, Yuzhou, Zheng, Hongchao, Cao, Richard Y.·2022·Frontiers in Cardiovascular Medicine

Abstract

Foam cells play a vital role in the initiation and development of atherosclerosis. This review aims to summarize the novel insights into the origins, consequences, and molecular mechanisms of foam cells in atherosclerotic plaques. Foam cells are originated from monocytes as well as from vascular smooth muscle cells (VSMC), stem/progenitor cells, and endothelium cells. Novel technologies including lineage tracing and single-cell RNA sequencing (scRNA-seq) have revolutionized our understanding of subtypes of monocyte- and VSMC-derived foam cells. By using scRNA-seq, three main clusters including resident-like, inflammatory, and triggering receptor expressed on myeloid cells-2 (Trem2hi) are identified as the major subtypes of monocyte-derived foam cells in atherosclerotic plaques. Foam cells undergo diverse pathways of programmed cell death including apoptosis, autophagy, necroptosis, and pyroptosis, contributing to the necrotic cores of atherosclerotic plaques. The formation of foam cells is affected by cholesterol uptake, efflux, and esterification. Novel mechanisms including nuclear receptors, non-coding RNAs, and gut microbiota have been discovered and investigated. Although the heterogeneity of monocytes and the complexity of non-coding RNAs make obstacles for targeting foam cells, further in-depth research and therapeutic exploration are needed for the better management of atherosclerosis.

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  1. [147]Uszczynska-Ratajczak B Lagarde J Frankish A Guigó R Johnson R. Towards a complete map of the human long non-coding RNA transcriptome. Physiol Behav. (2017) 176: 100– 6. 10.1038/s41576-018-0017-y.Towards PMC6451964 29795125 · DOI

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Authors
Gui, Y., Zheng, H., & Cao, R. Y.
Affiliations
Fudan University (CN)
Corresponding author
  • Zheng, Hongchao
  • Cao, Richard Y.
Venue
Frontiers in Cardiovascular Medicine
Published
2022-04-13
Volume
9
Pages
845942-845942
ISSN
2297-055X (ISSN-L)
OpenAlex
W4224139567
Cited by
258
References
195
Citations by year
2026: 56 · 2025: 88 · 2024: 63 · 2023: 44 · 2022: 7
FWCI
5.30
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Cardiovascular Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Natural Science Foundation of China
  • Science and Technology Commission of Shanghai Municipality
  • Shanghai Xuhui District Central Hospital
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
Keywords
foam cells, atherosclerosis, atherosclerotic plaque, monocyte heterogeneity, TREM2, necrotic core, programmed cell death, apoptosis, autophagy, necroptosis, pyroptosis, cholesterol absorption, cholesterol efflux, nuclear receptors, non-coding RNA, gut microbiota, lineage tracing, single-cell RNA sequencing

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