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Regulation of alpha 1-antichymotrypsin synthesis in cells of epithelial origin
J Cichy1, J Potempa, R K Chawla
1Department of Microbiology and Immunology, Jagiellonian University, Kraków, Poland.
Abstract:
Oncostatin M, interleukin-1 and the glucocorticoid analog, dexamethasone, have been identified as potent stimulators of alpha 1-antichymotrypsin production in various cells of epithelial origin. Although being able to act individually, these factors exerted a dramatic increase in alpha 1-antichymotrypsin synthesis when administrated in combination. Their stimulatory effect was independent of the levels of constitutive synthesis of this inhibitor, which was already high in lung- and breast- and low in skin-derived epithelial cells. Since alpha 1-antichymotrypsin controls chymotrypsin-like proteinases which are released during inflammation, these data support the concept that local synthesis of this inhibitor may be important in reducing tissue damage associated with this process.
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