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  • Title: Proliferative effect of high density lipoprotein (HDL) and HDL fractions (HDL1,2, HDL3) on virus transformed lymphoblastoid cells.
    Author: Favre G, Blancy E, Tournier JF, Soula G.
    Journal: Biochim Biophys Acta; 1989 Sep 19; 1013(2):118-24. PubMed ID: 2788459.
    Abstract:
    The growth-promoting activities of plasma lipoproteins (LDL, HDL, HDL1,2, HDL3) and total HDL apolipoproteins on a virus transformed lymphoblastoid cell line in vitro, has been compared. When maintained in lipoprotein-deficient serum-supplemented medium, these cells do not proliferate optimally. The addition of either HDL, HDL1,2 or HDL3 induced optimal cell proliferation as compared to the result observed in fetal calf serum-supplemented medium. The HDL1,2 subfraction was found to be more potent than the HDL3 subfraction in supporting cell growth. Total HDL apolipoproteins were able to support significant cell proliferation. In contrast, LDL did not promote cell growth. In serum-free conditions and in the presence of transferrin, only HDL and HDL subfractions induced cell proliferation. These results suggest that HDL and HDL subfractions could initiate B lymphoblastoid cell growth and that total HDL apolipoproteins could support a part of cell proliferation.
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