重组人IL-8 (CXCL8)

白介素8

产品号 #(选择产品)

产品号 #78084_C

白介素8

总览

白介素-8 (IL-8)是趋化因子CXC亚家族的一员,由白细胞(单核细胞、T细胞、中性粒细胞和自然杀伤细胞)和非白细胞体细胞(内皮细胞、成纤维细胞和上皮细胞)产生,最主要的来源是单核细胞和巨噬细胞。它的产生是由炎症刺激,如IL-1诱导的。IL-8,也被称为CXCL8,激活中性粒细胞,诱导趋化、脱粒和呼吸爆发反应(Baggiolini & Clark-Lewis; Mukaida)。IL-8被认为是炎症中最强效的中性粒细胞趋化因子之一,它通过结合白细胞表面的两种 G 蛋白偶联受体——CXCR1 和 CXCR2 发挥作用 Hoffmann et al.; de Oliveira et al.)。在体外实验中,IL-8通过CXCR2介导对人肠道微血管内皮细胞具有促血管生成的功能(Heidemann et al.)。研究发现,IL-8通过促进肿瘤细胞侵袭、血管生成和转移来促进乳腺癌的进展,并与乳腺癌干样细胞的调控有关(Singh et al.)。IL-8在结膜、角膜、虹膜、视网膜和眼框等部位的炎症性疾病中也具有促血管生成的特性(Ghasemi et al.)。在人类新生儿中,T细胞的一项主要效应功能是产生IL-8,有助于激活抗菌中性粒细胞和γ / δ T细胞(Gibbons et al.)。多种人类病原体,如HIV和结核分枝杆菌,已被证实可诱导单核细胞和巨噬细胞分泌IL-8 (Friedland et al.; Meddows-Taylor et al.)。

亚型
细胞因子
 
别名
CXC 结构域配体 8;GCP-1;粒细胞趋化蛋白 1;白细胞介素-8;MDNCF;单核细胞衍生粒细胞趋化因子;NAF;NAP-1;中性粒细胞激活因子;SCYB8;小诱导性细胞因子亚家族 B 成员 8
 
细胞类型
气道细胞,内皮细胞,角质形成细胞,巨噬细胞,单核细胞,NK 细胞
 
种属

 
研究领域
上皮细胞研究,免疫,干细胞生物学
 
分子量
8.9 千道尔顿
 
纯度
≥ 95 %
 

Data Figures

(A) The biological activity of Human Recombinant IL-8 (CXCL8) was tested by its ability to mobilize Ca2+ in CHO-K1/Gα15/hCXCR1 cells (human Gα15 and human CXCR1 stably expressed in CHO-K1 cells). Ca2+ mobilization was measured using a fluorometric assay method. The EC50 is defined as the effective concentration of the growth factor at which Ca2+ mobilization is at 50% of maximum. The EC50 in the example above is less than 0.15 μg/mL. (B) 2 μg of Human Recombinant IL-8 (CXCL8) was resolved with SDS-PAGE under reducing (+) and non-reducing (-) conditions and visualized by Coomassie Blue staining. Human Recombinant IL-8 (CXCL8) has a predicted molecular mass of 8.9 kDa.

Protocols and Documentation

Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.

Document Type
Product Name
Catalog #
Lot #
Language
Catalog #
78084.1
Lot #
All
Language
English
Document Type
Safety Data Sheet
Catalog #
78084.1
Lot #
All
Language
English

Applications

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Resources and Publications

Educational Materials (3)

更多信息

更多信息
Molecular Weight 8.9 kDa
Species Human
Alternative Names CXC motif ligand 8, GCP-1, Granulocyte chemotactic protein 1, Interleukin-8, MDNCF, Monocyte-derived neutrophil chemotactic factor, NAF, NAP-1, Neutrophil activating factor, SCYB8, Small inducible cytokine subfamily B member 8
Purity ≥ 95 %
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