Derivation of a T cell hybridoma variant deprived of functional T cell receptor α and β chain transcripts reveals a nonfunctional α‐mRNA of BW5147 origin

Derivation of a T cell hybridoma variant deprived of functional T cell receptor α and β chain transcripts reveals a nonfunctional α‐mRNA of BW5147 origin
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缺乏功能性 T 细胞受体 α 和 β 链转录物的 T 细胞杂交瘤变体的衍生揭示了 BW5147 来源的非功能性 α-mRNA

DOI:
--
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发表时间:
1989
影响因子:
5.4
通讯作者:
B. Malissen
B. Malissen
中科院分区:
医学3区
文献类型:
--
作者:
F. Letourneur;B. Malissen

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我们已经分离出一种不表达功能性T细胞受体α/β链的DO‐11.10.7小鼠T细胞杂交瘤的变体。这一变体,标记为58 α - β -,可以作为T细胞受体α/β基因转移实验的受体,以获得在其表面只表达转染α/β基因产物的细胞系。在表征58个α - β - T细胞受体基因缺陷的过程中,我们发现亲本BW5147胸腺瘤经历了先前未被注意到的Vα‐Jα重排。这种α重排涉及一个Vα假基因片段,并解释了BW5147 α - β -变体中存在高水平的α‐mRNA转录本。了解BW5147中存在的第二种α‐mRNA(尽管没有功能)是很重要的,因为它可能(实际上已经)在T杂交体中被错误地识别(由于部分核苷酸测序)为正常T细胞亲本提供的功能重要信息。
We have isolated a variant of the DO‐11.10.7 mouse T cell hybridoma which does not express functional T cell receptor α/β chains. This variant, denoted 58 α−β−, can be used as a recipient for T cell receptor α/β gene transfer experiments to obtain cell lines which express only the products of the transfected α/β genes at their surfaces. In the process of characterizing the defects affecting the 58 α−β− T cell receptor genes, we have found that the parental BW5147 thymoma has undergone a previously unnoticed Vα‐Jα rearrangement. This α rearrangement involves a Vα pseudogene segment and accounts for the high level of α‐mRNA transcripts present in the BW5147 α−β− variant. Knowledge of the existence of this second, albeit nonfunctional, α‐mRNA in BW5147 is of importance, since it could be, and actually already has been, mistakenly identified (due to partial nucleotide sequencing) in T hybrids as a functionally significant message donated by the normal T cell parent.
抗原/主要组织相容性复合物特异性激活转染功能重排 T 细胞受体基因的鼠 T 细胞。
DOI: 10.1073/pnas.84.21.7614
发表时间: 1987
影响因子: 11.1
作者:
Kuo,CL;Hood,L
通讯作者: Hood,L
DOI: --
发表时间: 1988
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Lee,NE;Davis,MM
通讯作者: Davis,MM