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白細胞介素27抗體

簡要描述:白細胞介素27抗體注意事項;This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.

  • 產(chǎn)品型號:GOY-01K0865
  • 廠商性質:科研
  • 更新時間:2023-10-24 00:00:00
  • 訪  問  量:156

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產(chǎn)品名稱

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GOY-01K0865

白細胞介素27抗體

50ul

GOY-01K0865

白細胞介素27抗體

100ul

GOY-01K0865

白細胞介素27抗體

200ul

 

英文名稱: IL27

中文名稱: 白細胞介素27抗體

   名;EBI3; IL 27; IL 27 p28 subunit; IL 27A; IL 30; IL-27 subunit alpha; IL-27-A; IL27; IL27-A; IL27A; IL27A_HUMAN; IL27p28; IL30; Interleukin 27; Interleukin 27 subunit alpha; Interleukin 27, 28-KD subunit; Interleukin 30; Interleukin-27 subunit alpha; Interleukin27; Interleukin30; MGC71873; p28.

研究領域;腫瘤  細胞生物  免疫學

抗體來源;Rabbit

克隆類型;Polyclonal

交叉反應;(predicted: Human, )

產(chǎn)品應用;ELISA=1:5000-10000 IHC-P=1:100-500 IHC-F=1:100-500 ICC=1:100-500 IF=1:100-500 (石蠟切片需做抗原修復)

not yet tested in other applications.

optimal dilutions/concentrations should be determined by the end user.

理論分子量;25kDa

細胞定位;分泌型蛋白

   狀;Liquid

   度;1mg/ml

免 疫 原;KLH conjugated synthetic peptide derived from human IL27: 71-170/243

   型;IgG

純化方法;affinity purified by Protein A

緩 沖 液;0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol.

注意事項;This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.

產(chǎn)品介紹 The protein encoded by this gene is one of the subunits of a heterodimeric cytokine complex. This protein is related to interleukin 12A (IL12A). It interacts with Epstein-Barr virus induced gene 3 (EBI3), a protein similar to interleukin 12B (IL12B), and forms a complex that has been shown to drive rapid expansion of naive but not memory CD4(+) T cells. The complex is also found to synergize strongly with interleukin 12 to trigger interferon gamma (IFNG) production of naive CD4(+) T cells. The biological effects of this cytokine are mediated by the class I cytokine receptor (WSX1/TCRR). [provided by RefSeq, Jul 2008]

Cytokine with pro- and anti-inflammatory properties, that can regulate T helper cell development, suppress T-cell proliferation, stimulate cytotoxic T cell activity, induce isotype switching in B-cells, and that has diverse effects on innate immune cells. Among its target cells are CD4 T helper cells which can differentiate in type 1 effector cells (TH1), type 2 effector cells (TH2) and IL17 producing helper T-cells (TH17). It drives rapid clonal expansion of naive but not memory CD4 T-cells. It also strongly synergizes with IL-12 to trigger interferon-gamma/IFN-gamma production of naive CD4 T-cells, binds to the cytokine receptor WSX-1/TCCR which appears to be required but not sufficient for IL-27-mediated signal transduction. IL-27 potentiate the early phase of TH1 response and suppress TH2 and TH17 differentiation. It induces the differentiation of TH1 cells via two distinct pathways, p38 MAPK/TBX21- and ICAM1/ITGAL/ERK-dependent pathways. It also induces STAT1, STAT3, STAT4 and STAT5 phosphorylation and activates TBX21/T-Bet via STAT1 with resulting IL12RB2 up-regulation, an event crucial to TH1 cell commitment. It suppresses the expression of GATA3, the inhibitor TH1 cells development. In CD8 T-cells, it activates STATs as well as GZMB. IL-27 reveals to be a potent inhibitor of TH17 cell development and of IL-17 production. Indeed IL-27 subunit p28 alone is also able to inhibit the production of IL17 by CD4 and CD8 T-cells. While IL-27 suppressed the development of proinflammatory Th17 cells via STAT1, it inhibits the development of anti-inflammatory inducible regulatory

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實驗流程:

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(1)特異性結合抗原:抗體本身不能直接溶解或殺傷帶有特異抗原的靶細胞,通常需要補體或吞噬細胞等共同發(fā)揮效應以清除病原微生物或導致病理損傷。然而,抗體可通過與病毒或毒素的特異性結合,直接發(fā)揮中和病毒的作用。

(2)活補體:IgM、IgG1、IgG2和IgG3可通過經(jīng)典途徑激活補體,凝聚的IgA、IgG4和IgE可通過替代途徑激活補體。

(3)結合細胞:不同類別的免疫球蛋白,可結合不同種的細胞,參與免疫應答。

(4)可通過胎盤及粘膜:免疫球蛋白G(IgG)能通過胎盤進入胎兒血流中,使胎兒形成自然被動

免疫。免疫球蛋白A(IgA)可通過消化道及呼吸道粘膜,是粘膜局部抗感染免疫的主要因素。

(5)具有抗原性:抗體分子是一種蛋白質,也具有刺機體產(chǎn)生免疫應答的性能。不同的免疫球蛋白分子,各具有不同的抗原性。

(6)抗體對理化因子的抵抗力與一般球蛋白相同:不耐熱,60~70℃即被破壞。各種酶及能使蛋白質凝固變性的物質,均能破壞抗體的作用。抗體可被中性鹽類沉淀。在生產(chǎn)上常可用硫酸銨或硫酸鈉從免疫血清中沉淀出含有抗體的球蛋白,再經(jīng)透析法將其純化。

抗體的制備過程:

1.免疫原:普通的大分子蛋白,通過分子克隆構建載體并在大腸桿菌中進行誘導表達獲得重組蛋白,純化鑒定后可直接作為免疫原;小分子蛋白或化合物等分子量小,需要偶聯(lián)載體對該分子進行改造才能使其成為具有免疫原性的抗原,常見偶聯(lián)載體如BSA、OVA、HAS等。

2. 免疫動物:常用于制備抗血清的動物有豚鼠、家兔、雞、大小鼠等,大量生產(chǎn)時需要用到狗、綿羊、山羊等。

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3. 免疫血清的收集:一般家兔、綿羊、山羊可采用靜動脈采血,家兔、豚鼠、大鼠、雞可采用心臟采血,家兔、山羊、綿羊可采用靜脈采血。

4. 免疫血清的純化與鑒定:得到的抗血清需要進一步的純化,利用偶聯(lián)了抗原的親和柱進行層析,具有高效,特異性強,純度高的特定。接著要鑒定純化蛋白的含量、相對分子的質量、純度以及特異性。

5.白細胞介素27抗體免疫血清的保存:抗體一般比較穩(wěn)定,在-80℃ ~-20 ℃可以保存約5年而不會影響效價,而真空干燥保存時間可以更久。保存前需經(jīng)除菌并添加防腐劑。

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