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胸腺移植嵌合体中对非胸腺亲本H-2单倍型特异的T细胞的抑制

Suppression of T cells specific for the nonthymic parental H-2 haplotype in thymus-grafted chimeras.

作者信息

Smith F I, Miller J F

出版信息

J Exp Med. 1980 Jan 1;151(1):246-51. doi: 10.1084/jem.151.1.246.

Abstract

The mechanism of restriction of T-cell specificity by the genotype of the thymus in allogeneic and semiallogeneic chimeras was investigated. Lack of induction of delayed-type hypersensitivity (DTH) directed against antigen in association with the nonthymic parental haplotype in naive cells adoptively transferred into chimeras suggests the existence of an in vivo suppressive mechanism. However, it was not possible to suppress the expression of DTH in sensitized cells transferred into chimeras, or to transfer this suppression to normal naive recipients.

摘要

研究了在同种异体和半同种异体嵌合体中胸腺基因型对T细胞特异性的限制机制。将幼稚细胞过继转移到嵌合体中后,缺乏针对与非胸腺亲本单倍型相关抗原的迟发型超敏反应(DTH)诱导,这表明存在一种体内抑制机制。然而,无法抑制转移到嵌合体中的致敏细胞中DTH的表达,也无法将这种抑制作用转移给正常的幼稚受体。

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