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PC786

CAS No. : 1902114-15-1

MCE 站：PC786

产品活性：PC786 是一种吸入式呼吸道合胞病毒 (RSV) L 蛋白聚合酶抑制剂。PC786 有效抗 RSV-A (IC₅₀<0.09 至 0.71 nM) 和 RSV-B (IC₅₀ 为 1.3 至 50.6 nM) 病毒活性。

研究领域：Anti-infection

作用靶点：RSV

In Vitro: PC786 demonstrates a potent ａnd selective antiviral activity against laboratory-adapted or clinical isolates of RSV-A (IC₅₀<0.09 to 0.71 nM) ａnd RSV-B (IC₅₀, 1.3 to 50.6 nM), which are determined by inhibition of cytopathic effects in HEp-2 cells without causing detectable cytotoxicity. PC786 inhibits RSV A2 activity, exhibiting an IC₅₀ ａnd IC₉₀ of 0.50±0.0014 nM ａnd 0.63±0.035 nM, respectively. PC786 inhibits RSV B WST activity, exhibiting an IC₅₀ ａnd IC₉₀ of 27.3±0.77 nM ａnd 57.1±3.87 nM, respectively. PC786 exhibits potent inhibition of cytopathic effect (CPE) induced by known RSV A clinical isolates (IC₅₀, 0.14 to 3.2 nM). PC786 also exhibits potent inhibition of CPE induced by various low-passage-number clinical isolates of RSV A (IC₅₀, 0.42 nM [median]) ａnd RSV B (IC₅₀, 17.5 nM [median]).

In Vivo: Once-daily treatment with PC786, on days-1 to 3, by either intratracheal (i.t.) or intranasal (i.n.) administration, is found to inhibit viral loads in the lungs of RSV A2-infected BALB/c mice. The viral load is below the level of detection when the drug is given at 2 mg/mL (40 μg/mouse [approximately 1.6 mg/kg of body weight] for i.t. treatment, or 80 μg/mouse [approximately 3.2 mg/kg] for i.n. treatment).

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