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The LipoGlo reporter system for sensitive and specific monitoring of atherogenic lipoproteins

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  • James H. Thierer

    (Carnegie Institution for Science Department of Embryology
    Johns Hopkins University Department of Biology)

  • Stephen C. Ekker

    (Mayo Clinic)

  • Steven A. Farber

    (Carnegie Institution for Science Department of Embryology
    Johns Hopkins University Department of Biology)

Abstract

Apolipoprotein-B (ApoB) is the structural component of atherogenic lipoproteins, lipid-rich particles that drive atherosclerosis by accumulating in the vascular wall. As atherosclerotic cardiovascular disease is the leading cause of death worldwide, there is an urgent need to develop new strategies to prevent lipoproteins from causing vascular damage. Here we report the LipoGlo system, which uses a luciferase enzyme (NanoLuc) fused to ApoB to monitor several key determinants of lipoprotein atherogenicity including particle abundance, size, and localization. Using LipoGlo, we comprehensively characterize the lipoprotein profile of individual larval zebrafish and collect images of atherogenic lipoprotein localization in an intact organism. We report multiple extravascular lipoprotein localization patterns, as well as identify Pla2g12b as a potent regulator of lipoprotein size. ApoB-fusion proteins thus represent a sensitive and specific approach to study atherogenic lipoproteins and their genetic and small molecule modifiers.

Suggested Citation

  • James H. Thierer & Stephen C. Ekker & Steven A. Farber, 2019. "The LipoGlo reporter system for sensitive and specific monitoring of atherogenic lipoproteins," Nature Communications, Nature, vol. 10(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-11259-w
    DOI: 10.1038/s41467-019-11259-w
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