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Recombinant Mouse IL25/IL17E, Tag Free

 
Catalog No.
PM2017
重组小鼠白细胞介素25/17E (IL-25/IL-17E)
组合的产品项目
规格价格库存 数量
10ug
¥ 1,560.00
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100ug
¥ 6,240.00
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A

背景

IL-25,也被称为IL-17E,促进偏向Th2的免疫反应。这与其他IL-17家族成员促进Th1和Th17偏向的炎症形成了鲜明对比。IL-25是过敏反应和肠道寄生虫保护的重要介质[1, 2]。成熟小鼠IL-25与人和大鼠IL-25的氨基酸序列同源性分别为80%和91%[3, 4]。在蠕虫感染和过敏反应期间,IL-25在肠道和呼吸道上皮细胞、特应性皮炎皮肤损害、局部Th2细胞、嗜酸性粒细胞和嗜碱性粒细胞中局部上调[4-9]。它与IL-17RB结合,但也需要IL-17RA发挥其活性[3, 8, 10]。IL-25作用于多种类型的细胞,Th2细胞因子(如IL-4、IL-5、IL-13)的产生增加,Th1和Th17细胞因子(如干扰素-γ、IL-12、IL-23、IL-17A、IL-17F)的产生减少[4-6, 8, 9]。呼吸道IL-25可以被基质金属蛋白酶-7激活,基质金属蛋白酶-7是一种在呼吸道上皮细胞中上调的蛋白酶,对过敏原暴露做出反应。裂解后的IL-25与IL-17 Rb结合增强,Th2细胞因子诱生增强。Th2细胞因子反过来触发Th2记忆细胞和抗炎M2巨噬细胞的扩张,增加嗜酸性粒细胞的动员和激活,以及树突状细胞的迁移[4, 6, 9]。这些作用促进保护性抗蠕虫免疫反应[4, 5]以及过敏性炎症和呼吸道高反应性[11]。IL-25诱导的Th1和Th17细胞因子抑制限制了自身免疫和结肠炎中Th17细胞的扩张和疾病病理[12]。 

Reference

[1]. Saadoun, D. et al. (2011) Curr. Pharm. Des. 17:3781.

[2]. Iwakura, Y. et al. (2011) Immunity 34:149.

[3]. Lee, J. et al. (2001) J. Biol. Chem. 276:1660.

[4]. Fort, M.M. et al. (2001) Immunity 15:985.

[5]. Zhao, A. et al. (2010) J. Immunol. 185:6921.

[6]. Suzukawa, M. et al. (2012) J. Immunol. 189:3641.

[7]. Corrigan, C.J. et al. (2011) Proc. Natl. Acad. Sci. USA 108:1579.

[8]. Petersen, B.C. et al. (2012) Nat. Med. 18:751.

[9]. Wang, Y.-H. et al. (2007) J. Exp. Med. 204:1837.

[10]. Rickel, E.A. et al. (2008) J. Immunol. 181:4299.

[11]. Hurst, S.D. et al. (2002) J. Immunol. 169:443.

[12]. Kleinschek, M.A. et al. (2007) J. Exp. Med. 204:161

Description

Accession #

Q8VHH8

Alternate Names

IL17E; IL-17E; IL25; IL-25; interleukin 25; Interleukin-17E; interleukin-25

Source

Human embryonic kidney cell, HEK293-derived mouse IL25/IL17E protein

Protein sequence

Val17-Ala169

M.Wt

17.5 kDa

Appearance

Solution protein

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

- 12 months from date of receipt, -20 to -70°C as supplied.

Concentration

0. 2 mg/mL

Formulation

Dissolved in sterile PBS buffer.

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. This solution can be diluted into other aqueous buffers.

Biological Activity

The EC50 for this effect is 0.02-1.0 ng/mL. Measured by its ability to induce CXCL1/GRO alpha secretion in HT-29 human colon adenocarcinoma cells.

Shipping Condition

Shipping with dry ice.

Handling

Centrifuge the vial prior to opening.

Usage

For Research Use Only! Not to be used in humans.

质量控制

质量控制和DataSheet

批次:
    纯度 > 95%, determined by SDS-PAGE.
    Endotoxin: <0.010 EU per 1 ug of the protein by the LAL method.
  • Datasheet