Kisilevsky R, Axelrad M, Brunet S, Richards M. Effects of amyloid induction on plasma protein turnover, and its implication.
THE AMERICAN JOURNAL OF PATHOLOGY 1976;
83:299-318. [PMID:
57723 PMCID:
PMC2032320]
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Abstract
Using polyacrylamide gel electrophoresis and radioiodinated plasma proteins, data on the rate constant for synthesis and fractional degradation rates for albumin, alpha1-, alpha2-, beta-, and gamma-globulins were obtained during accelerated amyloid induction in a murine model. The results indicate that during amyloid induction there is an increased rate of synthesis of alpha2-, beta-, and gamma-globulins but only the alpha2-globulin degradation rate is accelerated. In this experimental system, should amyloid protein be a degradation product of a plasma fraction, the alpha2-globulin appears as the most likely precursor. The implications of our findings are discussed, and a new general mechanism of amyloid production is proposed.
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