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小鼠浆细胞瘤在体内的生长:白细胞介素6(IL-6)的促进作用以及抗IL-6或其受体抗体的抑制作用。

Mouse plasmacytoma growth in vivo: enhancement by interleukin 6 (IL-6) and inhibition by antibodies directed against IL-6 or its receptor.

作者信息

Vink A, Coulie P, Warnier G, Renauld J C, Stevens M, Donckers D, Van Snick J

机构信息

Ludwig Institute for Cancer Research, Brussels, Belgium.

出版信息

J Exp Med. 1990 Sep 1;172(3):997-1000. doi: 10.1084/jem.172.3.997.

Abstract

Murine plasmacytomas show a striking dependence on interleukin 6 (IL-6) for their growth in vitro. Here, we present evidence suggesting that IL-6 also plays an essential role in the in vivo development of these tumors. This conclusion is based on the finding that the tumorigenicity of an IL-6-dependent plasmacytoma cell line was increased approximately 100-fold on transfection with an IL-6 expression vector, whereas it was inhibited in animals treated with monoclonal antibodies capable of blocking the binding of IL-6 to its receptor. Injection of these antibodies 1 d before tumor challenge protected greater than 50% of the mice and retarded tumor growth in all animals. Tumors arising in antibody-treated mice retained their IL-6 dependence in vitro, suggesting that the level of protection could be improved if stronger IL-6 antagonists were available.

摘要

小鼠浆细胞瘤在体外生长时对白细胞介素6(IL-6)表现出显著依赖性。在此,我们提供证据表明IL-6在这些肿瘤的体内发生过程中也起着至关重要的作用。这一结论基于以下发现:用IL-6表达载体转染后,一株依赖IL-6的浆细胞瘤细胞系的致瘤性增加了约100倍,而在用能够阻断IL-6与其受体结合的单克隆抗体处理的动物中,致瘤性受到抑制。在肿瘤攻击前1天注射这些抗体可保护超过50%的小鼠,并延缓所有动物的肿瘤生长。在抗体处理的小鼠中产生的肿瘤在体外仍保持对IL-6的依赖性,这表明如果有更强的IL-6拮抗剂,保护水平可能会提高。

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