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Macrophages Shed Excess Cholesterol in Unique Extracellular Structures Containing Cholesterol Microdomains.

Xueting Jin | Emilios K Dimitriadis | Ying Liu | Christian A Combs | Janet Chang | Neta Varsano | Erin Stempinski | Rhonda Flores | Shelley N Jackson | Ludovic Muller | Amina S Woods | Lia Addadi | Howard S Kruth
Arteriosclerosis, thrombosis, and vascular biology | 2018

Cells use various mechanisms to maintain cellular cholesterol homeostasis including efflux of cholesterol from the cellular plasma membrane to cholesterol acceptors such as HDLs (high-density lipoproteins). Little is known about the transfer of cholesterol from cells into the extracellular matrix. Using a unique monoclonal antibody that detects ordered cholesterol arrays (ie, cholesterol micro[or nano]-domains), we previously identified that particles containing these cholesterol domains accumulate in the extracellular matrix during cholesterol enrichment of human monocyte-derived macrophages and are found in atherosclerotic lesions. In this study, we further investigate these deposited particles containing cholesterol microdomains and discover their unexpected morphology.

Pubmed ID: 29853567

Research resources used in this publication

None found

Antibodies used in this publication

None found

Associated grants

  • Agency: Intramural NIH HHS, United States
    Id: ZIA HL002832-27

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Jackson Laboratory (tool)

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