Targeting of IgMκ Antibodies to Oligodendrocytes Promotes CNS Remyelination

Targeting of IgMκ Antibodies to Oligodendrocytes Promotes CNS Remyelination
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IgMκ 抗体靶向少突胶质细胞促进中枢神经系统髓鞘再生

DOI:
--
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发表时间:
1998
影响因子:
5.3
通讯作者:
Moses Rodriguez
Moses Rodriguez
中科院分区:
医学1区
文献类型:
--
作者:
K. Asakura;David J. Miller;L. Pease;Moses Rodriguez

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我们之前使用病毒诱导的多发性硬化症小鼠模型鉴定了天然 IgMκ 少突胶质细胞反应性自身抗体 (SCH94.03) 的髓鞘再生活性。我们现在描述了针对正常小鼠脊髓匀浆产生的第二种小鼠 IgMκ 单克隆抗体 (mAb) (SCH79.08),它与髓磷脂碱性蛋白反应,也促进髓鞘再生。由于这两种 mAb 识别不同的少突胶质细胞抗原,因此对几种先前鉴定的少突胶质细胞反应性 IgMκ mAb(O1、O4、A2B5 和 HNK-1)进行了评估,发现它们能够促进髓鞘再生,每种抗体都具有不同的抗原特异性。相反,不与少突胶质细胞结合的 IgMκ mAb 没有表现出髓鞘再生。其中之一 CH12 IgMκ mAb 与 SCH94.03 共享可变区 cDNA 序列,除了重链和轻链中互补决定区 3 的氨基酸差异外,它不与少突胶质细胞结合,也不促进髓鞘再生。具有不同抗原反应性的多种少突胶质细胞反应性抗体诱导髓鞘再生的事实反对由独特的细胞表面受体直接激活。这些发现与以下假设最为一致:mAb 与病变中的少突胶质细胞结合,通过 μ 链启动的间接免疫效应机制诱导髓磷脂修复。重要的是,这些研究表明少突胶质细胞反应性天然自身抗体可能提供一种强大且新颖的治疗手段来诱导多发性硬化症患者的髓鞘再生。
We previously identified the remyelinating activity of a natural IgMκ oligodendrocyte-reactive autoantibody (SCH94.03), using a virus-induced murine model of multiple sclerosis. We now describe a second mouse IgMκ monoclonal antibody (mAb) (SCH79.08) raised against normal mouse spinal cord homogenate, which reacts with myelin basic protein and also promotes remyelination. Because these two mAbs recognize different oligodendrocyte antigens, several previously identified oligodendrocyte-reactive IgMκ mAbs (O1, O4, A2B5, and HNK-1), each with distinct antigen specificities, were evaluated and found to promote remyelination. In contrast, IgMκ mAbs that did not bind to oligodendrocytes showed no remyelination. One of these, CH12 IgMκ mAb, which shares variable region cDNA sequences with SCH94.03 except for amino acid differences in the complementarity-determining region 3 in both heavy and light chains, did not bind to oligodendrocytes and did not promote remyelination. The fact that multiple oligodendrocyte-reactive antibodies with distinct antigen reactivities induce remyelination argues against direct activation by a unique cell surface receptor. These findings are most consistent with the hypothesis that the binding of mAbs to oligodendrocytes in the lesions induces myelin repair via indirect immune effector mechanisms initiated by the μ-chain. Importantly, these studies indicate that oligodendrocyte-reactive natural autoantibodies may provide a powerful and novel therapeutic means to induce remyelination in multiple sclerosis patients.
多发性硬化症的静脉免疫球蛋白治疗:从泰勒病毒模型中的髓鞘再生到随机、双盲、安慰剂对照临床试验的进展。
DOI: 10.1136/jnnp.57.suppl.11
发表时间: 1994
期刊: Journal of neurology, neurosurgery, and psychiatry
影响因子: --
作者:
Noseworthy,JH;O'Brien,PC;vanEngelen,BG;Rodriguez,M
通讯作者: Rodriguez,M
通过单克隆抗体 (HNK-1) 识别的人类 NK 和 K 细胞的分化抗原。
DOI: --
发表时间: 1981
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Abo,T;Balch,CM
通讯作者: Balch,CM
单克隆天然自身抗体的多器官反应性,可促进多发性硬化症小鼠模型中的髓鞘再生。
DOI: 10.1177/44.9.8773566
发表时间: 1996
期刊: The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society
影响因子: --
作者:
Miller,DJ;Njenga,MK;Parisi,JE;Rodriguez,M
通讯作者: Rodriguez,M
在多发性硬化症模型中促进中枢神经系统髓鞘再生的单克隆自身抗体是由种系免疫球蛋白基因编码的天然自身抗体。
DOI: --
发表时间: 1995
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Miller,DJ;Rodriguez,M
通讯作者: Rodriguez,M