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Human B cell variants immunoselected against a single Ia antigen subset have lost expression of several Ia antigen subsets.针对单个Ia抗原亚群进行免疫选择的人B细胞变体已失去了几个Ia抗原亚群的表达。
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Hybrid HLA-DC antigens provide molecular evidence for gene trans-complementation.混合 HLA-DC 抗原为基因反式互补提供了分子证据。
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Differential expression and serologically distinct subpopulations of human Ia antigens detected with monoclonal antibodies to Ia alpha and beta chains.用人Iaα链和β链单克隆抗体检测到的人Ia抗原的差异表达和血清学上不同的亚群。
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Subsets of human Ia-like molecules defined by monoclonal antibodies.由单克隆抗体界定的人类Ia样分子亚群。
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Influence of allelic polymorphism on the assembly and surface expression of class II MHC (Ia) molecules.等位基因多态性对II类主要组织相容性复合体(Ia)分子组装及表面表达的影响。
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Construction of chain- and locus-specific HLA class II DNA probes. Study of HLA-class II transcripts in leukemias.链特异性和基因座特异性HLA II类DNA探针的构建。白血病中HLA II类转录本的研究。
J Immunol. 1986 Sep 15;137(6):2050-6.
7
A novel HLA class II molecule (DR alpha-DQ beta) created by mismatched isotype pairing.一种由错配同种型配对产生的新型HLA II类分子(DRα-DQβ)。
Nature. 1987;329(6137):339-41. doi: 10.1038/329339a0.
8
MHC class II molecular structure--permitted pairs?MHC II类分子结构——允许的配对组合?
Immunol Today. 1988 Mar;9(3):76-8. doi: 10.1016/0167-5699(88)91268-6.
9
Human class II major histocompatibility complex genes and proteins.人类主要组织相容性复合体II类基因和蛋白质。
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10
Predominant role of amino-terminal sequences in dictating efficiency of class II major histocompatibility complex alpha beta dimer expression.氨基末端序列在决定II类主要组织相容性复合体αβ二聚体表达效率中的主要作用。
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通过转染正义和反义DRα cDNA对HLA II类抗原表达进行调控。

Modulation of HLA class II antigen expression by transfection of sense and antisense DR alpha cDNA.

作者信息

Lotteau V, Sands J, Teyton L, Turmel P, Charron D, Strominger J L

机构信息

Department of Biochemistry and Molecular Biology, Harvard University, Cambridge, Massachusetts 02138.

出版信息

J Exp Med. 1989 Jan 1;169(1):351-6. doi: 10.1084/jem.169.1.351.

DOI:10.1084/jem.169.1.351
PMID:2462612
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2189193/
Abstract

In the human there are three isotypic forms of MHC class II gene products (HLA-DR, -DQ, and -DP). The isotype-matched alpha-beta dimers are predominant but isotype-mismatched dimers can also be expressed (DR alpha-DQ beta). Here it is shown that the expression of the DR alpha-DQ beta dimer can be correlated to a high ratio of DR alpha/DR beta mRNA. The DR alpha chain expression was modulated by transfection of a sense and antisense DR alpha cDNA. Overexpression of DR alpha promoted the appearance of the DR alpha-DQ beta dimer. On the other hand, pre-existing DR alpha-DQ beta dimer expression was suppressed after antisense DR alpha cDNA transfection. Therefore, imbalanced expression of the alpha and beta chain from a given isotype could lead to the modification of HLA class II phenotype.

摘要

在人类中,主要组织相容性复合体II类基因产物有三种同种型形式(HLA - DR、- DQ和- DP)。同种型匹配的α-β二聚体占主导地位,但同种型不匹配的二聚体也可以表达(DRα - DQβ)。本文表明,DRα - DQβ二聚体的表达与DRα/DRβ mRNA的高比率相关。通过转染正义和反义DRα cDNA来调节DRα链的表达。DRα的过表达促进了DRα - DQβ二聚体的出现。另一方面,在反义DRα cDNA转染后,预先存在的DRα - DQβ二聚体表达受到抑制。因此,来自给定同种型的α链和β链表达失衡可能导致HLA II类表型的改变。