Intensive use of corticosteroids may be accompanied by increased susceptibility to infections; hence, we investigated the effects of dexamethasone on the expression of antimicrobial peptides, termed human beta -defensins (hBD), by cultured bronchial epithelial cells and mononuclear phagocytes. The results revealed that dexamethasone inhibited the (stimulated) expression of mRNA for hBD-3, but not hBD-1 and hBD-2 by these epithelial cells. Dexamethasone did not affect the (stimulated) mRNA expression of hBD-1 and hBD-2 by mononuclear phagocytes, whereas these cells did not express hBD-3 mRNA. (C) 2001 Academic Press.
机构:
Univ Texas, SW Med Ctr, Dept Internal Med, Howard Hughes Med Inst, Dallas, TX 75235 USAUniv Texas, SW Med Ctr, Dept Internal Med, Howard Hughes Med Inst, Dallas, TX 75235 USA
机构:
Univ Texas, SW Med Ctr, Dept Internal Med, Howard Hughes Med Inst, Dallas, TX 75235 USAUniv Texas, SW Med Ctr, Dept Internal Med, Howard Hughes Med Inst, Dallas, TX 75235 USA