首页> 美国卫生研究院文献>Proceedings of the National Academy of Sciences of the United States of America >Fatal lymphoreticular disease in the scurfy (sf) mouse requires T cells that mature in a sf thymic environment: potential model for thymic education.
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Fatal lymphoreticular disease in the scurfy (sf) mouse requires T cells that mature in a sf thymic environment: potential model for thymic education.

机译:坏死(sf)小鼠中的致命性淋巴网状疾病需要在sf胸腺环境中成熟的T细胞:胸腺教育的潜在模型。

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摘要

Characteristic lesions in mice hemi- or homozygous for the X-linked mutation scurfy (sf) include lymphohistiocytic proliferation in the skin and lymphoid organs, Coombs' test-positive anemia, hypergammaglobulinemia, and death by 24 days of age. The role of the thymus in the development of fatal lymphoreticular disease in the scurfy mouse was investigated. Neonatal thymectomy doubles the life span of scurfy mice, moderates the histologic lesions, and prevents anemia, despite the continued presence of high levels of serum IgG. Animals bred to be nude and scurfy (nuu; sf/Y) are viable, fertile, and free of scurfy lesions. Bone marrow from scurfy mice can reconstitute lethally irradiated, H-2-compatible animals but does not transmit scurfy disease. We conclude, from these data, that scurfy lesions are mediated by T lymphocytes that mature in an abnormal (sf) thymic environment.
机译:X连锁突变血吸虫(sf)的半纯合或纯合小鼠的特征性病变包括皮肤和淋巴器官的淋巴组织细胞增生,库姆氏测试阳性贫血,高血球蛋白血症和24天龄死亡。考察了胸腺在毛茸茸的小鼠致命性淋巴网状疾病发展中的作用。尽管持续存在高水平的血清IgG,新生儿胸腺切除术可以使水肿小鼠的寿命延长一倍,减轻组织学损伤并预防贫血。裸露和坏血病(nu / nu; sf / Y)饲养的动物是活的,可育的,并且没有坏血病性病变。坏血病小鼠的骨髓可以重建经致死性辐射的H-2兼容动物,但不会传播坏血病。从这些数据我们可以得出结论,毛骨悚然的病变是由在异常胸腺环境中成熟的T淋巴细胞介导的。

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