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2016 ; 33
(5 Pt A
): 551-64
Nephropedia Template TP
gab.com Text
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Developing high-quality mouse monoclonal antibodies for neuroscience research -
approaches, perspectives and opportunities
#MMPMID26644354
Gong B
; Murray KD
; Trimmer JS
N Biotechnol
2016[Sep]; 33
(5 Pt A
): 551-64
PMID26644354
show ga
High-quality antibodies (Abs) are critical to neuroscience research, as they
remain the primary affinity proteomics reagent used to label and capture
endogenously expressed protein targets in the nervous system. As in other fields,
neuroscientists are frequently confronted with inaccurate and irreproducible
Ab-based results and/or reporting. The UC Davis/NIH NeuroMab Facility was created
with the mission of addressing the unmet need for high-quality Abs in
neuroscience research by applying a unique approach to generate and validate
mouse monoclonal antibodies (mAbs) optimized for use against mammalian brain
(i.e., NeuroMabs). Here we describe our methodology of multi-step mAb screening
focused on identifying mAbs exhibiting efficacy and specificity in labeling
mammalian brain samples. We provide examples from NeuroMab screens, and from the
subsequent specialized validation of those selected as NeuroMabs. We highlight
the particular challenges and considerations of determining specificity for brain
immunolabeling. We also describe why our emphasis on extensive validation of
large numbers of candidates by immunoblotting and immunohistochemistry against
brain samples is essential for identifying those that exhibit efficacy and
specificity in those applications to become NeuroMabs. We describe the special
attention given to candidates with less common non-IgG1 IgG subclasses that can
facilitate simultaneous multiplex labeling with subclass-specific secondary
antibodies. We detail our recent use of recombinant cloning of NeuroMabs as a
method to archive all NeuroMabs, to unambiguously define NeuroMabs at the DNA
sequence level, and to re-engineer IgG1 NeuroMabs to less common IgG subclasses
to facilitate their use in multiplex labeling. Finally, we provide suggestions to
facilitate Ab development and use, as to design, execution and interpretation of
Ab-based neuroscience experiments. Reproducibility in neuroscience research will
improve with enhanced Ab validation, unambiguous identification of Abs used in
published experiments, and end user proficiency in Ab-based assays.