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豚鼠胸腺来源淋巴细胞与兔红细胞之间非免疫性玫瑰花结形成的机制。

Mechanism of formation of non-immune rosettes between guinea-pig thymus-derived lymphocytes and rabbit erythrocytes.

作者信息

Godfrey H P

出版信息

Immunology. 1977 Jan;32(1):25-31.

Abstract

Several observations reported here suggest that spontaneous rosette formation between rabbit erythrocytes and guinea-pig T lymphocytes is mediated by natural anti-guinea-pig T-cell antibodies bound to the surface of the rabbit erythrocyte. First, normal rabbit sera frequently contain antibodies specifically cytotoxic for guinea-pig T lymphocytes. Second, the activity of rabbit erythrocytes in spontaneous rosette formation is reduced after incubation for 5 days at pH 6-1, but can be restored to levels seen with fresh erythrocytes by a brief incubation in normal rabbit serum containing natural anti-guinea-pig antibodies; normal serum absorbed with thymocytes does not restore activity to the erythrocytes. Third, the activity of rabbit erythrocytes in forming spontaneous rosettes can be specifically blocked by treatment with anti-allotype and heterologous anti-Ig sera.

摘要

本文报道的几项观察结果表明,兔红细胞与豚鼠T淋巴细胞之间的自发玫瑰花结形成是由结合在兔红细胞表面的天然抗豚鼠T细胞抗体介导的。首先,正常兔血清中经常含有对豚鼠T淋巴细胞具有特异性细胞毒性的抗体。其次,兔红细胞在pH 6-1下孵育5天后,其在自发玫瑰花结形成中的活性降低,但通过在含有天然抗豚鼠抗体的正常兔血清中短暂孵育,可恢复到新鲜红细胞的水平;用胸腺细胞吸收的正常血清不能使红细胞恢复活性。第三,用抗同种异型和异源抗Ig血清处理可特异性阻断兔红细胞形成自发玫瑰花结的活性。

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