Summary

准备从大鼠脾细胞T细胞生长因子

Published: October 31, 2007
doi:

Summary

我们描述的T细胞生长因子在体外扩增抗原特异性大鼠T淋巴细胞线的准备。

Abstract

抗原特异性T细胞株或文化克隆的维修需要轮抗原诱导激活细胞扩张 1,2阶段分开。白细胞介素2除了在扩张阶段的文化传媒,是必要措施,防止细胞死亡,并足以维持短期的T细胞系,但已被证明能增加Th1细胞极化3。 T细胞生长因子(TCGF),其中包含混合的细胞因子白细胞介素2的更换是更有效地保持长期的T细胞系在体外培养3比白细胞介素2。此外,TCGF可以很容易地在实验室中大量的准备和重组白细胞介素2比便宜得多。

在这里,我们展示如何准备从大鼠脾细胞培养上清TCGF。在此过程中,我们收获脾脏从幼稚刘易斯安乐死大鼠胸腺和血液采集。我们准备从脾单细胞悬液,析渗透压冲击的红血细胞,而种子在培养基中的脾。与非选择性地激活所有大鼠T淋巴细胞,诱导细胞因子的产生,有丝分裂原刀豆蛋白A的细胞受到刺激。文化supernantant收集48小时后andexcess伴刀豆球蛋白A是必然的α甲基mannoside,以防止它激活T细胞,TCGF将增加线路。 TCGF是无菌过滤,分装,储存于-20 ° C

Protocol

以Lewis大鼠脾脏(160 – 200G之间的老鼠是最好的)。在培养皿菜含有PBS +抗生素(PBS – PS),使用细胞过滤器Dilacerate冰。放入50毫升管。填写用PBS – PS。 自旋为10分钟,在4 ° C至沉淀细胞。 清洗细胞两次。 悬浮颗粒在NH 4氯0.15米(5毫升每脾)。混合3分钟就冰吸管轻轻地,不断溶解红细胞。填充介质管。 自旋为10分钟,在4 ° C至沉淀细胞。 清洗细胞两次。 </…

Discussion

我们准备从Lewis大鼠脾细胞TCGF,因为我们经常从天真这株收获血清和thymi Lewis大鼠T细胞系在体外刺激大鼠安乐死。这TCGF,可以被用来促进从其他的大鼠株T细胞系的生长和生存。 TCGF也可准备从其他菌株的大鼠。

Declarações

The authors have nothing to disclose.

Materials

Material Name Tipo Company Catalogue Number Comment
PBS, 1x, sterile Reagent Gibco / Invitrogen 14040-182  
Penicillin / Streptomycin 100x Reagent Sigma P0781 Add 5 ml of 100x solution to 500 ml PBS to prepare PBS-PS
Cell strainer, 70 um diameter Tool Fisher 08-771-2  
Ammonium Chloride (NH4Cl) Reagent Sigma A0171 Prepare a 0.15 M solution in sterile distilled water, keep cold
RPMI 1640 Reagent Gibco / Invitrogen 21870-092  
Fetal Bovine Serum (FCS, FBS) Reagent Gibco / Invitrogen 16140-071 Heat-inactivated
Penicillin / Streptomycin / L-Glutamine Reagent Cambrex / Biowhittaker 17-718R PSG
RPMI vitamins, 100x Reagent Sigma R7256  
Sodium pyruvate, 100x Reagent Sigma S8636  
Non-essential amino acids, 100x Reagent Sigma    
Beta-mercaptoethanol Reagent Sigma M7522  
alpha methyl mannoside Reagent Sigma M6882  
Concanavalin A Reagent Sigma M6882  
To prepare complete culture medium add the following to a 500 ml bottle of RPMI 1640 and sterile-filter: 10% FCS; 1 bottle of PSG; 5 ml RPMI vitamins; 5 ml sodium pyruvate; 5 ml non-essential amino acids; 50 uM beta-mercaptoethanol; 2 ug/ml Concanavalin A.

Referências

  1. Beeton, C., Barbaria, J., Devaux, J., Benoliel, A. -. M., Gola, M., Sabatier, J. -. M., Bernard, D., Crest, M., Beraud, E. Selective blocking of voltage-gated K+ channels treats experimental autoimmune encephalomyelitis and inhibits T-cell activation. J. Immunol. 166, 936-944 (2001).
  2. Beeton, C., Wulff, H., Barbaria, J., Clot-Faybesse, O., Pennington, M., Bernard, D., Cahalan, M. D., Chandy, K. G., Beraud, E. Selective blockade of T lymphocyte K+ channels ameliorates experimental autoimmune encephalomyelitis, a model for multiple sclerosis. Proc. Natl. Acad. 98, 13942-13947 (2001).
  3. Mor, F., Cohen, I. R. Propagation of Lewis rat encephalitogenic T cell lines: T-cell-growth-factor is superior to recombinant IL-2. J. Neuroimmunol. 123, 76-82 (2002).

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Citar este artigo
Beeton, C., Chandy, K. G. Preparing T Cell Growth Factor from Rat Splenocytes. J. Vis. Exp. (10), e402, doi:10.3791/402 (2007).

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