A Human Anti-Pseudomonas aeruginosa Serotype O6ad Immunoglobulin G1 Expressed in Transgenic Tobacco Is Capable of Recruiting Immune System Effector Function In Vitro

A Human Anti-Pseudomonas aeruginosa Serotype O6ad Immunoglobulin G1 Expressed in Transgenic Tobacco Is Capable of Recruiting Immune System Effector Function In Vitro
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转基因烟草中表达的人抗铜绿假单胞菌血清型 O6ad 免疫球蛋白 G1 能够在体外招募免疫系统效应器功能

DOI:
10.1128/aac.00366-07
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发表时间:
2007
影响因子:
4.9
通讯作者:
J. Hall
J. Hall
中科院分区:
医学2区
文献类型:
--
作者:
Michael D. McLean;K. Almquist;Y. Niu;Rhonda J. Kimmel;Z. Lai;J. Schreiber;J. Hall

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摘要:对转基因烟草中重组人 IgG1 的产生进行了检查,以确定植物源抗体是否可以招募针对细菌病原体的免疫系统效应器功能。植物转化载体经过工程改造,含有人 kappa 轻链和人 γ-1 重链基因,以及来自先前鉴定的人 IgG2 单克隆抗体 (MAb) 的 VH 和 VL 序列,该抗体特异性结合并调理铜绿假单胞菌血清型 O6ad。独特的 NcoI 和 NotI 限制性位点被整合到这些可变序列的侧翼,从而产生了一种植物转化载体,可以设计用于表达任何其他人 IgG1 抗体,只需要替换其他 VH 和 VL 抗原结合编码序列。植物产生的 IgG1 经测定具有高甘露糖聚糖含量,并且能够在体外使用人补体和人多形核白细胞介导铜绿假单胞菌血清型 O6ad 的调理吞噬作用。因此,从该载体在植物中产生的单克隆抗体可以提供人 IgG1 单克隆抗体,用于靶向需要招募免疫系统效应子功能的其他病原体。
ABSTRACT The production of a recombinant human IgG1 in transgenic tobacco was examined to determine whether a plant-derived antibody could recruit immune system effector function against a bacterial pathogen. A plant transformation vector was engineered to contain genes for a human kappa light chain and a human gamma-1 heavy chain with VH and VL sequences from a previously identified human IgG2 monoclonal antibody (MAb) that specifically binds to and opsonizes Pseudomonas aeruginosa serotype O6ad. Unique NcoI and NotI restriction sites were incorporated to flank these variable sequences, resulting in a plant transformation vector that could be engineered for expression of any other human IgG1 antibody, requiring only the substitution of other VH and VL antigen-binding coding sequences. The plant-produced IgG1 was determined to have high-mannose glycan content and to be capable of mediating opsonophagocytosis of P. aeruginosa serotype O6ad in vitro using human complement and human polymorphonuclear leukocytes. Thus, MAbs produced in plants from this vector could provide human IgG1 MAbs for targeting other pathogens that require the recruitment of immune system effector functions.
DOI: 10.1016/s0167-7799(96)10062-7
发表时间: 1997
影响因子: 17.3
作者:
A. Wright;S. Morrison
通讯作者: A. Wright;S. Morrison
DOI: 10.1002/j.1460-2075.1988.tb03037.x
发表时间: 1988-07-01
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
DANGL, JL;WENSEL, TG;OI, VT
通讯作者: OI, VT
通过抗独特型单克隆抗体诱导针对铜绿假单胞菌粘液胞外多糖的调理性抗体。
DOI: 10.1093/infdis/164.3.507
发表时间: 1991
期刊: The Journal of infectious diseases
影响因子: --
作者:
Schreiber,JR;Pier,GB;Grout,M;Nixon,K;Patawaran,M
通讯作者: Patawaran,M