Background:

AEBSF is a broad spectrum, irreversible inhibitor of serine proteases [1].

AEBSF is a covalently binding inhibitor of proteases, including trypsin, chymotrypsin, plasmin and thrombin. AEBSF was found to inhibit Aβ production in various cell lines. In K293 cells transfected with APP695 (K695sw), AEBSF showed does-dependent reduction of Aβ with IC50 value of about 1mM. In HS695 and SKN695 cells transfected with wild-type APP695, AEBSF showed inhibition effect with IC50 value of about 300 μM. AEBSF was also found to increase α-cleavege and inhibit β- cleavage. Besides that, as a protease inhibitor, AEBSF was reported to prevent monocyte-derived macrophages from lysing the leukemic cells. Incubation of macrophages with 150 μM AEBSF for 6 hours resulted in nearly maximum inhibition [1, 2].

参考文献:
[1] Citron M, Diehl T S, Capell A, et al. Inhibition of amyloid β-protein production in neural cells by the serine protease inhibitor AEBSF. Neuron, 1996, 17(1): 171-179.
[2] Nakabo Y, Pabst M J. Lysis of leukemic cells by human macrophages: inhibition by 4-(2-aminoethyl)-benzenesulfonyl fluoride (AEBSF), a serine protease inhibitor. Journal of leukocyte biology, 1996, 60(3): 328-336.