Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\29485921
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 MAbs
2018 ; 10
(4
): 539-546
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
When monoclonal antibodies are not monospecific: Hybridomas frequently express
additional functional variable regions
#MMPMID29485921
Bradbury ARM
; Trinklein ND
; Thie H
; Wilkinson IC
; Tandon AK
; Anderson S
; Bladen CL
; Jones B
; Aldred SF
; Bestagno M
; Burrone O
; Maynard J
; Ferrara F
; Trimmer JS
; Görnemann J
; Glanville J
; Wolf P
; Frenzel A
; Wong J
; Koh XY
; Eng HY
; Lane D
; Lefranc MP
; Clark M
; Dübel S
MAbs
2018[May]; 10
(4
): 539-546
PMID29485921
show ga
Monoclonal antibodies are commonly assumed to be monospecific, but anecdotal
studies have reported genetic diversity in antibody heavy chain and light chain
genes found within individual hybridomas. As the prevalence of such diversity has
never been explored, we analyzed 185 random hybridomas, in a large multicenter
dataset. The hybridomas analyzed were not biased towards those with cloning
difficulties or known to have additional chains. Of the hybridomas we evaluated,
126 (68.1%) contained no additional productive chains, while the remaining 59
(31.9%) contained one or more additional productive heavy or light chains. The
expression of additional chains degraded properties of the antibodies, including
specificity, binding signal and/or signal-to-noise ratio, as determined by
enzyme-linked immunosorbent assay and immunohistochemistry. The most abundant
mRNA transcripts found in a hybridoma cell line did not necessarily encode the
antibody chains providing the correct specificity. Consequently, when cloning
antibody genes, functional validation of all possible VH and VL combinations is
required to identify those with the highest affinity and lowest cross-reactivity.
These findings, reflecting the current state of hybridomas used in research,
reiterate the importance of using sequence-defined recombinant antibodies for
research or diagnostic use.