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Lipid metabolism and intracellular transport in physiology and disease

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Accessible cholesterol (green) in intestinal organoids

Movement of Aster proteins in enterocytes after oral cholesterol loading

From Ferrari, Whang et al., Science (2023), https://www.science.org/doi/10.1126/science.adf0966

Lipids are the main integral component of cellular membranes. Membrane lipids are heterogeneous, and their distribution and variety changes across different organisms, cell types, organelles, membrane layers, bilayer-leaflets, and membrane subdomains. An abnormal distribution of cellular lipids is associated with numerous diseases, including cancer, cardiovascular and neurodegenerative disease.

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Our goal is to unveil previously unrecognized mechanisms of lipid transport, understand how they are regulated by nutritional cues, and how the disruption of these pathways contributes to the onset of lipid-related disorders.

Publications

Aster-dependent nonvesicular transport facilitates dietary cholesterol uptake. Science, 2023 Ferrari A*, Whang E*, Xiao X, Kennelly JP, Romartinez-Alonso B, Mack JJ, Weston T, Chen K, Kim Y, Tol MJ, Bideyan L, Nguyen A, Gao Y, Cui L, Bedard AH, Sandhu J, Lee SD, Fairall L, Williams KJ, Song W, Munguia P, Russell RA, Martin MG, Jung ME, Jiang H, Schwabe JWR, Young SG, Tontonoz P *equal contribution ​ PMCID: PMC11073449

Aster proteins regulate the accessible cholesterol pool in the plasma membrane. Molecular and Cellular Biology, 2020 Ferrari A*, He C*, Kennelly JP, Sandhu J, Xiao X, Chi X, Jiang H, Young SG, and Tontonoz P *equal contribution PMCID: PMC7491948

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