Surrogate light chain expressing human peripheral B cells produce self-reactive antibodies.

Surrogate light chain expressing human peripheral B cells produce self-reactive antibodies.
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DOI:
10.1084/jem.20031550
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发表时间:
2004-01-05
影响因子:
15.3
通讯作者:
Nussenzweig, MC
Nussenzweig, MC
中科院分区:
医学1区
文献类型:
--
作者:
Meffre, E;Schaefer, A;Wardemann, H;Wilson, P;Davis, E;Nussenzweig, MC

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共表达替代轻链和常规轻链(V - preB + L +)的人类B细胞呈现出一种不寻常的重链和轻链抗体库,显示出受体编辑的迹象。然而,尚不清楚V - preB + L + B细胞是已通过受体编辑而沉默,还是仍然表达自身反应性抗体。在此我们报道,V - preB + L + B细胞所表达的抗体中有68%是自身反应性的。这些自身抗体中的大多数是真正的抗核抗体(ANA),并且50%的ANA还与多种抗原发生反应,这些抗原包括双链DNA、单链DNA、免疫球蛋白、胰岛素和细菌脂多糖。在常规B细胞中很少遇到此类抗体。我们得出结论,V - preB + L + B细胞是正常循环人类B细胞的一个独特亚群,它们逃避了中枢耐受机制,并表达自身反应性抗体,包括可能有害的ANA。
Human B cells that coexpress surrogate and conventional light chains (V-preB+L+) show an unusual heavy and light chain antibody repertoire that display evidence of receptor editing. However, it is unclear whether V-preB+L+ B cells have been silenced by receptor editing or still express autoreactive antibodies. Here we report that 68% of the antibodies expressed by V-preB+L+ B cells are autoreactive. A majority of these autoantibodies are true antinuclear antibodies (ANA), and 50% of the ANAs are also reactive with a diverse group of antigens that include dsDNA, ssDNA, immunoglobulin, insulin, and bacterial lipopolysaccharide. Such antibodies are rarely encountered among conventional B cells. We conclude that V-preB+L+ B cells are a unique subset of normal circulating human B cells that escape central tolerance mechanisms and express self-reactive antibodies including potentially harmful ANAs.
DOI: 10.4049/jimmunol.167.4.2151
发表时间: 2001-08-15
影响因子: 4.4
作者:
Meffre, E;Chiorazzi, M;Nussenzweig, MC
通讯作者: Nussenzweig, MC
DOI: 10.1038/79739
发表时间: 2000-09-01
期刊: NATURE IMMUNOLOGY
影响因子: 30.5
作者:
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发表时间: 1997-11-15
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