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人白细胞介素2酶联免疫试剂盒
Human IL-2 ELISA Kit
产品编号:
bsk11002
产品规格:
96T    
保存条件:
Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Shipped with wet ice.)
别名:
IL2, IL-2, TCGF, lymphokine, interleukin 2
种属:
Human
线性范围:
7.81 - 500 pg/mL
应用范围:
S/P/CC
检测限:
4 pg/mL
产品介绍:
Interleukin 2 (IL-2) is a pleiotropic cytokine produced primarily by mitogen- or antigen-activated T lymphocytes. Human IL-2 (also known as T-cell growth factor) is produced by T-cells in response to antigenic or mitogenic stimulation. IL-2 is a potent lymphoid cell growth factor which exerts its biological activity primarily on T cells promoting proliferation and maturation.IL-2 has been found to stimulate growth and differentiation of B cells, NK cells, LAK cells, monocytes, and oligodendocytes. IL-2 is involved in treatment of cancers such as melanoma and renal cell cancer. It plays a key role in promoting the clonal expansion of antigen-specific T cells. In addition, IL-2 has also been shown to mediate multiple immune responses on a variety of cell types.

白介素-2(Interleukin-2,IL-2)是辅助型T淋巴细胞(TH)活化产生的细胞因子[1-2]。IL-2具有双重调控免疫应变的能力,可有效诱导细胞免疫和体液免疫应答。 白介素(IL-2)的主要生理作用是刺激和维持T细胞的分化增殖。IL-2有关肿瘤的生物学活性包括:1.刺激自然杀伤(NK)细胞的增殖和活化,并增强其活性。2.诱导细胞毒性淋巴细胞,增强其溶细胞活性。3.诱导淋巴因子活化杀伤(LAK)细胞。LAK细胞具有广谱的抗肿瘤活性,可以溶解多种肿瘤细胞。IL-2不仅是产生LAK细胞的必需淋巴因子,而且在它的存在下还能维持LAK细胞的增殖和长期生长,因此,在临床抗肿瘤治疗时往往把IL-2和LAK细胞同时给予,这就是恶性肿瘤的过继免疫性治疗(adoptiveimmunetherapy,AIT)。4.刺激肿瘤浸润淋巴细胞(TIL)的增生并增强其活性。动物实验证明,TIL较LAK细胞的抗肿瘤活性高50~100倍。5.不仅能促进T细胞增殖,且对细胞有促增殖和促分化作用。在肿瘤治疗的动物模型中已证明,当T细胞中介抗瘤反应强烈时,很低量的IL-2已足以激化抗瘤作用;但当T细胞中介的抗瘤反应很弱时,则需要很高剂量的IL-2。低剂量可以显著地刺激T细胞,而激活NK及LAK细胞则要求很大剂量。因IL-2不能直接抗癌,用药目的是最大限度地兴奋免疫机制,以加强抗癌作用。以前常用的IL-2和LAK细胞联合应用治疗恶性肿瘤,现已不再推荐,而代之以IL-2与肿瘤浸润淋巴细胞(TIL)联合疗法。6.rhIL-11为177个氨基酸组成的活性蛋白质。其编码基因位于19号染色体长臂13区。作用于巨核细胞系较晚期阶段的巨核细胞水平,促进巨核细胞的增殖及成熟,并促进血小板的产生。IL-11虽无巨核细胞集落刺激因子(Meg-CSF)的活性,但有巨核细胞增殖因子的活性,与GM-CSF及IL-3协同作用,可使CFU-MegDNA量增多。
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Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.