产品号 #78034_C
白细胞介素1
白细胞介素1β (IL-1β)作为无活性前体蛋白或IL-1β前体合成。这种前体被半胱天蛋白酶1 (IL-1β转化酶)在细胞内切割,形成活性形式的蛋白质,随后被分泌(Allan等)。IL-1β与IL-1受体结合,通过MAPK或NF-κB途径激活细胞内信号传导。IL-1β由单核细胞、组织巨噬细胞和树突状细胞在感染或损伤时释放,并诱导急性期蛋白的表达。它还通过刺激内皮细胞上粘附分子的表达,促进炎症和免疫能力细胞从循环向血管外空间和受累组织浸润。IL-1β也影响其他免疫细胞;例如,它与抗原或有丝分裂原一起共同刺激T细胞功能。它还以依赖il -6的方式刺激Th17分化和B细胞增殖。
Subtype
Cytokines
Cell Type
B Cells, Hematopoietic Stem and Progenitor Cells, T Cells, T Cells, CD4+, T Cells, CD8+
Species
Human
Area of Interest
Immunology, Stem Cell Biology
Purity
≥ 95%
(A) The biological activity of Human Recombinant IL-1 beta was tested by its ability to promote the proliferation of D10S cells. Cell proliferation was measured after 66 hours of culture using a fluorometric assay method. The EC50 is defined as the effective concentration of the growth factor at which cell proliferation is at 50% of maximum. The EC50 in the above example is 0.7 - 1 pg/mL.
(B) 1 μg of Human Recombinant IL-1 beta was resolved with SDS-PAGE under reducing (+) and non-reducing (-) conditions and visualized by Coomassie Blue staining. Human Recombinant IL-1 beta has a predicted molecular mass of 17.5 kDa.
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Species | Human |
---|---|
Purity | ≥ 95% |
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