CAS NO: | 117591-20-5 |
规格: | 98% |
分子量: | 362.47 |
包装 | 价格(元) |
10mg | 电议 |
50mg | 电议 |
500mg | 电议 |
1g | 电议 |
Background:
IC50: 5 nM for human calpain 1
Calpeptin is a calpain inhibitor.
As a calcium-dependent intracellular cysteine protease, calpain plays an key role in various cellular processes including cell differentiation, growth and apoptosis. In rheumatoid arthritis patients, over-expression of calpains are observed in arthritic synovial fluid and are thought to play critical roles in various cellular processes.
In vitro: Calpeptin reduced production of TGF-b1, IL-6, angiopoietin-1 and collagen synthesis from lung fibroblasts. Calpeptin also reduced both angiopoietin-1-dependent migration and IL-6-dependent proliferation of the cells, which could be the underlying mechanism of the preventive effect of Calpeptin on pulmonary fibrosis [1].
In vivo: The preventive effect of calpeptin has been examined on bleomycin-induced pulmonary fibrosis in mice. Histological examinations and quantitative measurements of related proteins in bleomycin-treated mouse lung tissues with or without calpeptin were performed. Calpeptin histologically ameliorated bleomycininduced pulmonary fibrosis in mice. Results showed that calpeptin decreased the expression of IL-6, TGF-b1, angiopoietin-1 and collagen type Ia1 mRNA in mouse lung tissues [1].
Clinical trial: N/A
Reference:
[1] Tabata C,Tabata R,Nakano T. The calpain inhibitor calpeptin prevents bleomycin-induced pulmonary fibrosis in mice. Clin Exp Immunol.2010 Dec;162(3):560-7.