Calpeptin with Bleo (0.04 mg/mouse, i.p., 3 times weekly, 28 days) administration significantly inhibits the collagen deposition and increases of calpain activity in the bleomycintreatedmouse lung tissues[3]. Animal Model: C57BL/6 female mice (Eight-week-old)[3]. Dosage: 0.04 mg/mouse. Administration: Intraperitoneally three times weekly for 28 days (together with Bleo). Result: Inhibited the collagen deposition and increase of calpain activity in the bleomycintreatedmouse lung tissues.
In Vitro
Calpeptin (0-100 nM, 24 hours) treatment suppresses the proliferation of both WI38 VA13 and IMR90 cells in a dose-dependent manner. Calpeptin (1000 pg/ml, 24 hours) inhibits IL-6-induced cell proliferation of lung fibroblasts[3]. Cell Proliferation Assay[3] Cell Line: WI38 VA13 and IMR90 cells Concentration: 0-100 nM Incubation Time: 24 hours Result: Suppressed the proliferation in a dose-dependent manner.
Kinase Assay
Cell Assay
Animal Administration
References
[1]. Tsujinaka T, et al. Synthesis of a new cell penetrating calpain inhibitor (calpeptin). Biochem Biophys Res Commun. 1988 Jun 30;153(3):1201-8.
[2]. Catalano JG, et al. Design of small molecule ketoamide-based inhibitors of cathepsin K. Bioorg Med Chem Lett. 2004 Feb 9;14(3):719-22.
[3]. Tabata C, et al. The calpain inhibitor calpeptin prevents pulmonary fibrosis in mice. Clin Exp Immunol. 2010 Dec;162(3):560-7.
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