Protein distribution across the human atherosclerotic wall with reference to immunoglobulins and complement components.
The concentrations of IgG, IgA, IgM, Clq, C3c, C4, C9, C3A, Albumin, Transferrin, Alpha-1-antitrypsin, Alpha-2-macroglobulin were determined in the serum, aortic atherosclerotic intima and media of 8 patients. The protein levels in the intima were dependent on their serum concentration. The passage of proteins from serum to media was investigated using the ratios between their intima/serum and media/intima concentrations. Immunoglobulins and complement components displayed higher intima/serum and lower media/intima ratios than the other proteins suggesting a preferential retention of the immune related proteins in the intima. This trapping into the intima seems to be related to their function too, suggesting a certain involvement in the progression of the atherosclerotic lesions.
R
R
Vlaicu
H G
HG
Rus
F
F
Niculescu
A
A
Cristea
D000368:Aged; D001011:Aorta / Q000378:metabolism*; D001161:Arteriosclerosis / Q000378:metabolism*; D001798:Blood Proteins / Q000378:metabolism*; D003165:Complement System Proteins / Q000378:metabolism*; D005260:Female; D006801:Humans; D007136:Immunoglobulins / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D012709:Serum Albumin / Q000378:metabolism; D014168:Transferrin / Q000378:metabolism; D000515:alpha 1-Antitrypsin / Q000378:metabolism; D000511:alpha-Macroglobulins / Q000378:metabolism
D001798:Blood Proteins; D007136:Immunoglobulins; D012709:Serum Albumin; D014168:Transferrin; D000515:alpha 1-Antitrypsin; D000511:alpha-Macroglobulins; D003165:Complement System Proteins