Correlation between immune maturation and idiotypic network recognition

Correlation between immune maturation and idiotypic network recognition
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免疫成熟与独特型网络识别之间的相关性

DOI:
--
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发表时间:
1996
影响因子:
5.4
通讯作者:
H. Lemke
H. Lemke
中科院分区:
医学3区
文献类型:
--
作者:
H. Lange;Meika Solterbeck;C. Berek;H. Lemke

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T依赖的体液免疫反应的成熟是由体细胞突变介导的。抗原选择是激活B细胞克隆的一种机制,B细胞克隆表达亲和力逐渐增强的抗体,并作为生殖系编码基因的体细胞变体而来。然而,B细胞克隆的出现分泌相当低的亲和力抗体,以及在第二和第三反应期间转向替代生殖系V区基因组合,不能用抗原选择来解释。有人认为,独特型抑制可能有利于这种克隆转移。这样的参与将要求在同基因宿主中的独特型识别必须高度限制在免疫成熟过程中顺序激活的每个克隆的私人独特位。为了测试这种可能性,我们在BALB/c小鼠中制备了19种针对抗2-苯基恶唑酮(Phox)免疫反应的胚系编码的主要OX1独特型(IgM-IdOx1 H11.5)的同基因抗独特型抗体。这些抗IdOx1抗体的良好特异性用一组代表成熟的第一步的抗Phox单抗进行了测试。约一半的抗IdOx1抗体在转换为IdOx1后几乎不与IdOx1反应,也没有抗IdOx1抗体与携带甘氨酸或组氨酸而不是精氨酸作为D区中间氨基酸的抗Phox抗体反应。这些观察表明,免疫成熟和独特型网络之间存在很强的相关性。提出了一个独特型抑制可作为抗原诱导的免疫反应多样化和成熟的驱动力的模型。
The maturation of T‐dependent humoral immune responses is mediated by somatic mutations. Antigen selection is one mechanism for the activation of B cell clones which express antibodies with progressively increased affinity and which are derived as somatic variants from germ‐line‐encoded genes. However, the emergence of B cell clones secreting rather low‐affinity antibodies and the shift to alternative germ‐line V region gene combinations during secondary and tertiary responses cannot be explained by antigen selection. It has been considered that idiotypic suppression may favor this clonal shift. Such an involvement would require that idiotypic recognition in the syngeneic host must be highly restricted to private idiotopes of each clone sequentially activated during immune maturation. To test this possibility, we produced 19 syngeneic anti‐idiotypic antibodies to the germ‐line‐encoded major Ox1 idiotype (IgM‐IdOx1 H11.5) of the anti‐2‐phenyl‐oxazolone (phOx) immune response in BALB/c mice. The fine specificity of these anti‐IdOx1 was tested with a set of anti‐phOx monoclonal antibodies, representing the first steps of maturation. About half of the anti‐IdOx1 showed almost no reactivity with the IdOx1 after the switch to IgG and none of the anti‐IdOx1 reacted with anti‐phOx antibodies which carried a glycine or histidine instead of arginine as the middle amino acid of the D region. These observations suggest a strong correlation between immune maturation and the idiotypic network. A model is presented in which idiotypic suppression may function as a driving force for diversification and maturation of the antigen‐induced immune response.
一组明显种系的自身抗独特型调节 B 淋巴细胞的鉴定和表征。
DOI: --
发表时间: 1984
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Pollok,BA;Kearney,JF
通讯作者: Kearney,JF
抗对偶氮苯胂酸抗体共有的簇状 H 链体细胞突变赋予增强的亲和力并消除交叉反应的独特型。
DOI: --
发表时间: 1990
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
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通讯作者: Sharon,J
高度保守的 B 细胞克隆在早期初级免疫反应中占据短暂优势,其特点是缺乏记忆、高激活阈值和高亲和力。
DOI: 10.1016/0008-8749(95)80017-d
发表时间: 1995
影响因子: 4.3
作者:
Falkenberg,S;Winter,D;Bankert,RB
通讯作者: Bankert,RB
有限数量的 B 细胞谱系产生二次免疫反应的异质性。
DOI: --
发表时间: 1987
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Blier,PR;Bothwell,A
通讯作者: Bothwell,A
对正常和 xid 小鼠产生的一抗和二抗 (T,G)-A--L 抗体所使用的重链和轻链进行分子分析。
DOI: --
发表时间: 1987
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Busto,P;Gerstein,R;Dupre,L;Giorgetti,CA;Selsing,E;Press,JL
通讯作者: Press,JL