Tracking the response of Xid B cells in vivo: TI‐2 antigen induces migration and proliferation but Btk is essential for terminal differentiation

Tracking the response of Xid B cells in vivo: TI‐2 antigen induces migration and proliferation but Btk is essential for terminal differentiation
复制标题

追踪 Xid B 细胞体内反应:TI-2 抗原诱导迁移和增殖,但 Btk 对于终末分化至关重要

DOI:
--
复制
发表时间:
2001
影响因子:
5.4
通讯作者:
M. Cook
M. Cook
中科院分区:
医学3区
文献类型:
--
作者:
C. Vinuesa;Yvonne Sunners;J. Pongrácz;J. Ball;K. Toellner;Dale R. Taylor;I. Maclennan;M. Cook

文献摘要

参考文献

被引文献

相似文献

X-连锁免疫缺陷(Xid)小鼠携带布鲁顿酪氨酸激酶(Btk)突变,并表现出选择性不能产生抗细菌荚膜多糖的抗体。体外研究指出,Xid B细胞在通过胸腺非依赖性2型(TI-2)抗原进行受体交联后存在根本性存活缺陷,因为B细胞发生凋亡而不增殖。我们描述了一个新的模型,我们已经用来调查的影响Xid突变的迁移,增殖和分化的B细胞多糖免疫后,在体内的结果。将免疫球蛋白敲入小鼠(其中大部分B细胞表达对(4-羟基-3-硝基苯基)-乙酰基(NP)具有特异性的转基因编码受体)与CBA/N小鼠杂交。雄性后代含有NP特异性Xid B细胞,而雌性后代含有具有正常Btk的NP特异性B细胞。用TI-2抗原NP-Ficoll免疫后,NP-特异性Xid B细胞迁移到T区并增殖。尽管blimp-1的瞬时上调和存活超过正常进行终末分化的时间,但Btk缺陷型B细胞不能分化为浆母细胞或生殖中心细胞。CD 40连接部分恢复了它们响应TI-2抗原形成浆细胞的能力。
X‐linked immunodeficient (Xid) mice carry a Bruton′s tyrosine kinase (Btk) mutation and exhibit a selective failure to produce antibodies against bacterial capsular polysaccharides. Studies in vitro point to a fundamental survival defect of Xid B cells after receptor cross‐linking by thymus‐independent type‐2 (TI‐2) antigen because B cells undergo apoptosis without proliferating. We describe results from a novel model, which we have used to investigate the impact of the Xid mutation on migration, proliferation and differentiation of B cells after polysaccharide immunization in vivo. Immunoglobulin knock‐in mice, in which a large proportion of B cells express transgene‐encoded receptors specific for (4‐hydroxy‐3‐nitrophenyl)‐acetyl (NP), were crossed with CBA/N mice. The male progeny contain NP‐specific Xid B cells, while the female progeny contain NP‐specific B cells with normal Btk. After immunization with the TI‐2 antigen NP‐Ficoll, NP‐specific Xid B cells migrate to the T zones and proliferate. Despite transient up‐regulation of blimp‐1 and survival beyond the time when terminal differentiation is normally underway, Btk‐defective B cells fail to differentiate to plasmablasts or germinal center cells. CD40 ligation partially restores their ability to form plasma cells in response to TI‐2 antigen.
X连锁无丙种球蛋白血症患者外周血B细胞的功能分析。
DOI: --
发表时间: 1998
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Nonoyama,S;Tsukada,S;Yamadori,T;Miyawaki,T;Jin,YZ;Watanabe,C;Morio,T;Yata,J;Ochs,HD
通讯作者: Ochs,HD
DOI: 10.1126/science.8332900
发表时间: 1993-07-16
期刊: SCIENCE
影响因子: 56.9
作者:
THOMAS, JD;SIDERAS, P;PAUL, WE
通讯作者: PAUL, WE
原癌基因 bcl-2 对 xid 小鼠 B 细胞存活的调节。
DOI: --
发表时间: 1996
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Woodland,RT;Schmidt,MR;Korsmeyer,SJ;Gravel,KA
通讯作者: Gravel,KA
准单克隆小鼠超选择 B 细胞中的 VH 基因替换。
DOI: --
发表时间: 1997
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Cascalho,M;Wong,J;Wabl,M
通讯作者: Wabl,M
xid 突变会减少记忆 B 细胞的生成,但不会影响体细胞超突变和选择。
DOI: --
发表时间: 1996
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Ridderstad,A;Nossal,GJ;Tarlinton,DM
通讯作者: Tarlinton,DM