13585831301
021-59541103 021-60443211
3004967995
13585831301021-59541103 021-604432113004967995
聯系人:高小姐
電話:021-59541103 021-60443211
手機:13585831301
Q Q： 3004967995
Email:3004967995@qq.com
詳細地址：上海嘉定區嘉羅公路1661
化學性質：
| 規格 | 5mg 10mg |
| CAS | 233277-99-1 |
| 別名 | N/A |
| 化學名 | N/A |
| 分子式 | C32H38N4O4S |
| 分子量 | 574.73 |
| 溶解度 | N/A |
| 儲存條件 | N/A |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while. |
| Shipping Condition | Evaluation sample solution : ship with blue ice |
產品描述：
K777 is a potent, orally active and irreversible cysteine protease inhibitor. K777 is also a potent CYP3A4 inhibitor with an IC50 of 60 nM and a selective CCR4 antagonist featuring the potent chemotaxis inhibition. K777 irreversibly inhibits Cruzain, the major cysteine protease of Trypansoma cruzi, and cathepsins B and L. K777 is a broad-spectrum antiviral by targeting cathepsin-mediated cell entry. K777 inhibits SARS-CoV and EBOV pseudovirus entry with IC50 values of 0.68 nM and 0.87 nM, respectively[1][2][3].
K777 (K11777) can inhibit entry driven by other viral envelope proteins, HIV-based pseudotypes bearing spikes from coronaviruses (SARS-CoV, HCoV-229E, NL63, MERS-CoV) or glycoproteins from filoviruses (EBOV, SUDV, TAFV, RESTV, BEBOV and MARV) are examined. K777 inhibits SARS-CoV, HCoV-229E, NL63, MERS-CoV, EBOV, SUDV, TAFV, RESTV, BEBOV, MARV and Nipah pseudovirus entry with IC50 values of 0.68 nM, 1.48 nM, 6.78 nM, 46.12 nM, 0.87 nM, 1.14 nM, 2.26 nM, 3.37 nM, 5.91 nM, 1.9 nM and 0.42 nM, respectively. In contrast, 100 nM K777 does not inhibit infection mediated by envelope glycoproteins from an alphavirus (CHIKV), a rhabdovirus (VSV), a flavivirus (HCV), the retroviruses MLV-A and XMRV or two arenaviruses, Lassa and Junin virus[1].Whether K777 displays antiviral activity in TMPRSS2 expressing cells are assessed. For this, the incubated target cells with Camostat, K777, or a combination of K777 and Camostat and then infected with pseudoviruses bearing 229E-S. K777 alone demonstrates up to ~ 70% inhibition of 229E-S-mediated transduction. Simultaneous treatment with Camostat and K777 increases inhibition to ~ 90%. Similar inhibition patterns are obtained using the human intestinal epithelial cell line Caco-2, which express endogenous TMPRSS2 and cathepsins[1].K777 inhibits both CCL17 binding and CCL17-induced chemotaxis in Hut78 cells (IC50 of 57 and 8.9 nM, respectively). The K777-mediated inhibition of chemotaxis is potent even in the presence of a 10-fold higher concentration of CCL17. K777 induces CCR4 internalization, with a ～50% reduction of cell surface CCR4. K777 does not inhibit CXCR4-induced chemotaxis or internalization and did not bring about Ca2+ mobilization by itself[3].
K777 (K11777; 35-105 mg/kg; oral administration; twice a day; for 10 days; C57BL/6 IFN-γR-KO mice) treatment rescues mice from otherwise lethal infections[4] . Animal Model: C57BL/6 IFN-γR-KO mice (6-8 weeks of age) injected with Cryptosporidium parvum[4]
[1]. Zhou Y, et al. Protease inhibitors targeting coronavirus and filovirus entry. Antiviral Res. 2015 Apr;116:76-84. [2]. Jacobsen W, et al. In vitro evaluation of the disposition of A novel cysteine protease inhibitor. Drug Metab Dispos. 2000 Nov;28(11):1343-51. [3]. Sato T, et al. Internalization of CCR4 and inhibition of chemotaxis by K777, a potent and selective CCR4 antagonist. Pharmacology. 2013;91(5-6):305-13. [4]. Ndao M, et al. A cysteine protease inhibitor rescues mice from a lethal Cryptosporidium parvum infection. Antimicrob Agents Chemother. 2013 Dec;57(12):6063-73.
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原創作者：上海莼試生物技術有限公司
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普票匯款信息
賬 戶 名：上海生物
開 戶 行：中國銀行山東省分行營業部
賬 號：2169 2341 6278
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