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Polyinosinic-polycytidylic acid sodium

CAS No. : 42424-50-0

MCE 站：Polyinosinic-polycytidylic acid sodium

产品活性：Polyinosinic-polycytidylic acid sodium (Poly(I:C) sodium) 是双链 RNA 的合成类似物，是一种 TLR3 和视黄酸诱导型基因 I 受体 (RIG-I 和 MDA5) 的激动剂。Polyinosinic-polycytidylic acid sodium 可以用作疫苗佐剂，以增强先天性和适应性免疫反应，并改变肿瘤的微环境，还可以直接触发癌细胞发生凋亡。

研究领域：Immunology/Inflammation  |  Apoptosis

作用靶点：Toll-like Receptor (TLR)  |  Apoptosis

In Vitro: Polyinosinic-polycytidylic acid (20 ng/mL; 24 hours; WM793, WM278, WM239A, WM9 and 1205Lu cells) treatment strongly reduces viability from 100% in controls to 20%–50% within 24 hours.
Polyinosinic-polycytidylic acid (200 ng/mL; 24 hours; 1205Lu cells) treatment induces apoptosis in 1205Lu cells.
Polyinosinic-polycytidylic acid (3 ng/mL; 24 hours; 1205Lu cells) treatment induces IFN-β expression in melanoma cells. Silencing of RIG-I and MDA-5 confirmed that induction of IFN-β by Polyinosinic-polycytidylic acid required RIG-I and MDA-5, respectively, and that required IPS-1.
Polyinosinic-polycytidylic acid (5 ng/mL; 24 hours; 1205Lu cells) treatment reveals active subunits of caspase-9 and caspase-8 in melanoma cells.
Polyinosinic-polycytidylic acid sodium is prepared for injection by resuspending in sterile saline, heating to 50 °C at a concentration of 2 mg/ml to ensure complete solubilisation and then allowing to cool naturally to room temperature to ensure proper annealing of double-stranded RNA. Poly I:C is stored at -20 °C until use.

In Vivo: Polyinosinic-polycytidylic acid treatment inhibits tumor growth in NOD/SCID immunodeficient mice injected with 1205Lu cells. The level of human DNA is 50% lower in mice treated with Polyinosinic-polycytidylic acid.

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