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2015 ; 6
(ä): 23
Nephropedia Template TP
gab.com Text
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English Wikipedia
HTRF: a technology tailored for biomarker determination-novel analytical
detection system suitable for detection of specific autoimmune antibodies as
biomarkers in nanogram level in different body fluids
#MMPMID26617680
Einhorn L
; Krapfenbauer K
EPMA J
2015[]; 6
(ä): 23
PMID26617680
show ga
BACKGROUND: Classical methods of gene product analysis such as binding assays
(e.g., ELISA, protein chip technology) are generally time-consuming,
lab-intensive, less sensitive, and lack high-throughput capacity. In addition,
all existing methods used to measure proteins necessitate multiple divisions of
the original sample and individual tests carried out for each substance, with an
associated cost for each test. METHOD: Together with a small biotech company, we
developed a new and innovative analytical detection system based on homogenous
time-resolved fluorescence (HTRF) technology. Our system facilitates the
development of immune assays that measure selective different analytes such as
selected biomarkers in a small sample volume at less than 20 min with a much
higher sensitivity compared to common binding assay systems such as enzyme-linked
immunosorbent assay (ELISA). Recent advances of the application of this novel
detection system combine the power of miniaturization, microfluidics, better
linear range, and faster quantification. RESULTS: The power of the HTRF
technology offers great promise for point-of-care clinical testing and monitoring
of many important analytes such as disease-specific biomarkers in the nanogram
level in different human body fluids such as CSF, blood, serum, plasma, and
saliva. The linear dynamical range of our HTRF assay was determined between 2.5
and 100 ng/mL. Precision and accuracy calculated for inter- as well as
intra-assays was less than?±?10 %. Intra-assay and inter-assay precision for
high, medium, and low analyte concentrations show mean CV values less
than?±?10 %. Intra- and inter-assay accuracy for all three concentrations show
mean recovery values of 80-120 %. CONCLUSION: The aim of this work is to describe
the development and establishment of this novel HTRF system that allows the very
fast detection and quantification of biomarkers in different human body fluids.
Furthermore, a specific antibody combination that assures a specific binding of
the correct refolded autoimmune IgG is evaluated.