Antigen-specific human polyclonal antibodies from hyperimmunized cattle

被引：83

作者：

Kuroiwa, Yoshimi ^{[1
,2
]}

Kasinathan, Poothappillai ^{[1
]}

Sathiyaseelan, Thillainayagen ^{[1
]}

Jiao, Jin-an ^{[1
]}

Matsushita, Hiroaki ^{[1
]}

Sathiyaseelan, Janaki ^{[1
]}

Wu, Hua ^{[1
]}

Mellquist, Jenny ^{[1
]}

Hammitt, Melissa ^{[1
]}

Koster, Julie ^{[1
]}

Kamoda, Satoru ^{[2
]}

Tachibana, Katsumi ^{[2
]}

Ishida, Isao ^{[2
]}

Robl, James M. ^{[1
]}

机构：

[1] Hematech Inc, Sioux Falls, SD 57106 USA

[2] Kyowa Hakko Kirin Co Ltd, Chiyoda Ku, Tokyo 1008185, Japan

来源：

NATURE BIOTECHNOLOGY | 2009年 / 27卷 / 02期

关键词：

IMMUNOGLOBULIN-MU; HEAVY-CHAINS; IG HEAVY; B-CELL; GENE; REPERTOIRE; DIVERSIFICATION; CLONING; SHEEP; MICE;

D O I：

10.1038/nbt.1521

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Antigen-specific human polyclonal antibodies (hpAbs), produced by hyperimmunization, could be useful for treating many human diseases. However, yields from available transgenic mice and transchromosomic (Tc) cattle carrying human immunoglobulin loci are too low for therapeutic applications. We report a Tc bovine system that produces large yields of hpAbs. Tc cattle were generated by transferring a human artificial chromosome vector carrying the entire unrearranged, human immunoglobulin heavy (hIGH) and kappa-light (hIGK) chain loci to bovine fibroblasts in which two endogenous bovine IgH chain loci were inactivated. Plasma from the oldest animal contained > 2g/I of hIgG, paired with either human kappa-light chain (up to similar to 650 mu g/ml, fully human) or with bovine kappa- or lambda-light chain (chimeric), with a normal hIgG subclass distribution. Hyperimmunization with anthrax protective antigen triggered a hIgG-mediated humoral immune response comprising a high proportion of antigen-specific hIgG. Purified, fully human and chimeric hIgGs were highly active in an in vitro toxin neutralization assay and protective in an in vivo mouse challenge assay.

引用

页码：173 / 181

页数：9

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