Protection of mice against H. somni septicemia by vaccination with recombinant immunoglobulin binding protein subunits.

Protection of mice against H. somni septicemia by vaccination with recombinant immunoglobulin binding protein subunits.
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通过接种重组免疫球蛋白结合蛋白亚基来保护小鼠免受睡眠嗜血菌败血症。

DOI:
10.1016/j.vaccine.2008.06.046
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发表时间:
2008
期刊:
影响因子:
5.5
通讯作者:
Corbeil,LynetteB
Corbeil,LynetteB
中科院分区:
医学3区
文献类型:
--
作者:
Geertsema,RogerS;Worby,Carolyn;Kruger,RobertP;Tagawa,Yuichi;Russo,Riccardo;Herdman,DScott;Lo,Kimby;Kimball,RichardA;Dixon,Jack;Corbeil,LynetteB

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睡眠嗜组织菌可引起牛肺炎、败血症及其后遗症,但其毒力和保护性免疫机制尚不清楚。由于表面免疫球蛋白结合蛋白是毒力因子,我们研究了它们在睡眠嗜血菌败血症小鼠模型中作为保护性抗原的作用。免疫球蛋白结合蛋白 A (IbpA) 与百日咳博德特氏菌丝状血凝素和其他大型细菌外蛋白具有同源性。 IbpA 是由 ibpA 基因编码的主要表面抗原,具有许多可能在发病机制和免疫保护中发挥重要作用的结构域。由于假定的功能域和基序,选择了三个 IbpA 重组蛋白亚基 IbpA3、IbpA5 和 IbpADR2 进行研究。将这些重组 GST 融合亚基蛋白与 GST(阴性对照)、福尔马林灭活的睡眠幽门螺杆菌(商业疫苗对照)、活的睡眠幽门螺杆菌(诱导恢复期免疫)和睡眠幽门螺杆菌培养上清液(含有从细菌表面脱落的 IbpA)进行比较。在疫苗接种/攻击研究中,活的睡眠嗜血菌(恢复期免疫)和上清液均具有同等保护作用,但福尔马林杀死的睡眠嗜血菌和 GST 不能预防败血症。 DR2和A3亚基具有中等程度的保护作用,并诱导针对上清液抗原和ELISA中的同源亚基的抗体应答,但不针对全细胞抗原。上清液免疫比 IbpA 亚基抗原提供更好的保护,并诱导针对全细胞和上清液抗原的高抗体活性。结果表明,培养物上清液抗原或重组 IbpA 亚基可能可用于睡眠嗜血菌疫苗。这些研究还深入了解了 IbpA 结构域对睡眠嗜血菌败血症发病机制的贡献。
Histophilus somni causes bovine pneumonia as well as septicemia and its sequelae but mechanisms of virulence and protective immunity are poorly understood. Since surface immunoglobulin binding proteins are virulence factors, we addressed their role as protective antigens in a mouse model of H. somni septicemia. Immunoglobulin binding protein A (IbpA), has homology to Bordetella pertussis filamentous hemagglutinin and other large bacterial exoproteins. IbpA is a major surface antigen encoded by the ibpA gene with many domains that may be important in pathogenesis and immune protection. Three IbpA recombinant protein subunits, IbpA3, IbpA5 and IbpADR2 were chosen for study because of putative functional domains and motifs. These recombinant GST fusion subunit proteins were compared with GST (negative control), formalin-killed H. somni (commercial vaccine control), live H. somni (to induce convalescent immunity) and H. somni culture supernatant (containing IbpA shed from the bacterial surface). In vaccination/challenge studies, both live H. somni (convalescent immunity) and supernatant protected equally but formalin-killed H. somni and GST did not protect against septicemia. The DR2 and A3 subunits protected moderately well and induced antibody responses against supernatant antigen and the homologous subunit in ELISA but not against whole cell antigens. Supernatant immunization protected better than the IbpA subunit antigens and induced high antibody activity against both whole cells and supernatant antigens. The results indicate that culture supernatant antigens or perhaps recombinant IbpA subunits may be useful in H. somni vaccines. These studies also provide insight into the contribution of IbpA domains to pathogenesis of H. somni septicemia.
睡眠嗜血杆菌免疫球蛋白结合蛋白的遗传操作。
DOI: 10.1016/s0882-4010(02)00188-2
发表时间: 2003
影响因子: 3.8
作者:
Sanders,JerryD;Bastida-Corcuera,FelixD;Arnold,KarenF;Wunderlich,AnnetteC;Corbeil,LynetteB
通讯作者: Corbeil,LynetteB
编码睡眠嗜血杆菌抗原的基因的克隆和表达
DOI: 10.1128/iai.56.10.2736-2742.1988
发表时间: 1988
影响因子: 3.1
作者:
L. Corbeil;G. Chikami;M. Yarnall;Jeffrey W. Smith;D. Guiney
通讯作者: D. Guiney
DOI: 10.1099/ijs.0.02637-0
发表时间: 2003-09-01
影响因子: 2.8
作者:
Angen, O;Ahrens, P;Mutters, R
通讯作者: Mutters, R
睡眠嗜血杆菌:抗原分析和免疫反应
DOI: --
发表时间: 1995
期刊:
影响因子: --
作者:
L. Corbeil;R. Gogolewski;L. R. Stephens;T. Inzana
通讯作者: T. Inzana
两种睡眠嗜血杆菌 Fc 受体的表征。
DOI: --
发表时间: 1988
期刊: Journal of General Microbiology
影响因子: --
作者:
M. Yarnall;R. Gogolewski;L. Corbeil
通讯作者: L. Corbeil