中文名称(Chinese name):双链聚肌胞 中文别名(Chinese aliases):双链聚肌胞钠盐 英文名称(English name):Polyinosinic-polycytidylic acid sodium salt 英文别名(English aliases):PIC;Poly I:C sodium salt CAS No.24939-03-5 分子式(Molecular formula):(C19H21N7O14P2Na2)n 分子量(Molecular weight):679.4 分子结构(structural formula):
物化性质(Physical properties): 本品为白色或类白色粉末,易溶于水,不溶于乙醇,乙醚。 This product is a white to off-white powder, freely soluble in water, insoluble in ethanol and ether. 含量(Contents)dry basis:≥80.0%
贮藏(storage):密封,冷冻保存。Preserve in tight containers, in a freezing place.
Poly I:C 能激活树突状细胞和 NK 细胞,诱导抗肿瘤免疫反应;部分修饰版本(如 Poly I:C stabilized with poly-L-lysine and carboxymethylcellulose, Poly-ICLC)已进入临床研究,用于黑色素瘤、胶质瘤等癌症的免疫治疗。
2. 科研用途
免疫学研究
用于研究先天免疫识别机制、TLR3 信号转导、干扰素系统激活。
病毒学研究
模拟病毒感染,用于探究宿主-病原相互作用。
肿瘤学研究
作为免疫刺激剂,用于肿瘤模型研究免疫微环境调节。
参考文献
Alexopoulou L, Holt AC, Medzhitov R, Flavell RA. Recognition of double-stranded RNA and activation of NF-κB by Toll-like receptor 3. Nature. 2001;413(6857):732-738.
Salazar AM, Levy HB, Ondra S, et al. Long-term treatment of malignant gliomas with intramuscularly administered polyinosinic-polycytidylic acid stabilized with poly-L-lysine and carboxymethylcellulose: an open pilot study. Cancer Res. 1996;56(3):558-565.
Trumpfheller C, Caskey M, Nchinda G, et al. The microbial mimic poly IC induces durable and protective CD4+ T cell immunity in vivo. J Exp Med. 2008;205(13):2707-2716.
Martins KA, Bavari S, Salazar AM. Vaccine adjuvant uses of poly-IC and derivatives. Expert Rev Vaccines. 2015;14(3):447-459.