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  • Title: Serum concentration of alpha-2-macroglobulin, alpha-1-antitrypsin and alpha-2-antichymotrypsin in patients with lung carcinoma.
    Author: Dabrowska M, Prokopowicz J, Kemona H, Kretowska J, Kiluk S, Gluszczak M.
    Journal: Folia Haematol Int Mag Klin Morphol Blutforsch; 1988; 115(6):817-23. PubMed ID: 2467852.
    Abstract:
    Serum concentration of alpha-2-macroglobulin, alpha-1-antitrypsin and alpha-2-antichymotrypsin was evaluated in 26 patients with lung carcinoma. We observed an evident decrease in alpha-2-M and alpha-1-antitrypsin level and no differences between tested and control groups in alpha-1-antichymotrypsin concentration. The deficiency of protease inhibitors may be due to the increased level of protease activity in malignant cells. Infiltration of granulocytes near tumor and released enzymes from them may exhaust proteolytic inhibitory capacity, too. Increased protease activity is associated with transformation and uncontrolled proliferation, therefore antiproteases may be accepted as anticancerogenic factors. Further investigations are needed to bring us closer to understanding this question.
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