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2015 ; 10
(12
): e0145381
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The Molecular Engineering of an Anti-Idiotypic Antibody for Pharmacokinetic
Analysis of a Fully Human Anti-Infective
#MMPMID26700297
Lim SY
; Chan CE
; Lisowska MM
; Hanson BJ
; MacAry PA
PLoS One
2015[]; 10
(12
): e0145381
PMID26700297
show ga
Anti-idiotype monoclonal antibodies represent a class of reagents that are
potentially optimal for analyzing the pharmacokinetics of fully human,
anti-infective antibodies that have been developed as therapeutic candidates.
This is particularly important where direct pathogen binding assays are
complicated by requirements for biosafety level III or IV for pathogen handling.
In this study, we describe the development of a recombinant, anti-idiotype
monoclonal antibody termed E1 for the detection of a fully human,
serotype-specific, therapeutic antibody candidate for the BSLIII pathogen Dengue
virus termed 14c10 hG1. E1 was generated by naïve human Fab phage library panning
technology and subsequently engineered as a monoclonal antibody. We show that E1
is highly specific for the fully-folded form of 14c10 hG1 and can be employed for
the detection of this antibody in healthy human subjects' serum by enzyme linked
immunosorbent assay. In addition, we show that E1 is capable of blocking the
binding of 14c10 hG1 to dengue virus serotype 1. Finally, we show that E1 can
detect 14c10 hG1 in mouse serum after the administration of the therapeutic
antibody in vivo. E1 represents an important new form of ancillary reagent that
can be utilized in the clinical development of a therapeutic human antibody
candidate.