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the presence of high concentrations of LDL (Brown and Goldstein, 1983). It is now clear that uptake of LDL by foam cells is mediated by a group of cell surface proteins termed scavenger receptors. Brown and Goldstein and * The Salk Institute for Biological Studies colleagues were the first to demonstrate that these re-† Howard Hughes Medical Institute(More)
The formation of foam cells from macrophages in the arterial wall is characterized by dramatic changes in lipid metabolism, including increased expression of scavenger receptors and the uptake of oxidized low-density lipoprotein (oxLDL). We demonstrate here that the nuclear receptor PPARgamma is induced in human monocytes following exposure to oxLDL and is(More)
Tissue transglutaminase is a cytosolic enzyme whose primary function is to catalyze the covalent cross-linking of proteins. To investigate the functions of this enzyme in physiological systems, we have established lines of Balb-C 3T3 fibroblasts stably transfected with a constitutive tissue transglutaminase expression plasmid. Several cell lines expressing(More)
Radiation therapy continues to play an extremely valuable role in the treatment of malignancy. The effects of radiation therapy on normal tissue can present in a delayed fashion, resulting in localized damage with pseudomalignant transformation, producing a compressive effect on the spinal cord or exiting nerve roots. Infiltration of inflammatory cells and(More)
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