alexa Atypical xanthomatosis in apolipoprotein E-deficient mice after cholesterol feeding.
Immunology

Immunology

Journal of Clinical & Cellular Immunology

Author(s): van Ree JH, Gijbels MJ, van den Broek WJ, Hofker MH, Havekes LM

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Abstract Apolipoprotein (apo) E-deficient mice were fed a hypercholesterolemic diet for 14 weeks. Mean serum cholesterol levels rose to 37.5 mM. Upon complete necroscopy, massive xanthomatous lesions were noticed in various tissues, with a predilection for subcutaneous and peritendinous tissues, while control animals on the same diet (3.4 mM serum cholesterol) and apo E-deficient mice on a regular chow diet (20 mM serum cholesterol) did not show such lesions. Also, apo E3-Leiden transgenic mice fed a high fat diet, with 60 mM of serum cholesterol, did not exhibit any xanthomatosis. The xanthomatous lesions found in the Apoe knock-out mouse clearly differed in location from xanthomas previously found in low density lipoprotein receptor-deficient mice. We conclude that the lack of apo E results in atypical disseminated xanthomatosis, suggesting that apo E has an important role in determining the tissue distribution of cholesterol deposition.
This article was published in Atherosclerosis and referenced in Journal of Clinical & Cellular Immunology

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