Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 227.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 261.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 261.2 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\24801479
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Immunol+Methods
2014 ; 409
(ä): 62-71
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Development and implementation of a proficiency testing program for Luminex
bead-based cytokine assays
#MMPMID24801479
Lynch HE
; Sanchez AM
; D'Souza MP
; Rountree W
; Denny TN
; Kalos M
; Sempowski GD
J Immunol Methods
2014[Jul]; 409
(ä): 62-71
PMID24801479
show ga
Luminex bead array assays are widely used for rapid biomarker quantification due
to the ability to measure up to 100 unique analytes in a single well of a 96-well
plate. There has been, however, no comprehensive analysis of variables impacting
assay performance, nor development of a standardized proficiency testing program
for laboratories performing these assays. To meet this need, the NIH/NIAID and
the Cancer Immunotherapy Consortium of the Cancer Research Institute collaborated
to develop and implement a Luminex assay proficiency testing program as part of
the NIH/NIAID-sponsored External Quality Assurance Program Oversight Laboratory
(EQAPOL) at Duke University. The program currently monitors 25 domestic and
international sites with two external proficiency panels per year. Each panel
includes a de-identified commercial Luminex assay kit with standards to quantify
human IFN?, TNF?, IL-6, IL-10 and IL-2, and a series of recombinant
cytokine-spiked human serum samples. All aspects of panel development, testing
and shipping are performed under GCLP by EQAPOL support teams. Following
development testing, a comprehensive site proficiency scoring system comprised of
timeliness, protocol adherence, accuracy and precision was implemented. The
overall mean proficiency score across three rounds of testing has remained stable
(EP3: 76%, EP4: 75%, EP5: 77%); however, a more detailed analysis of site
reported results indicates a significant improvement of intra- (within) and
inter- (between) site variation, suggesting that training and remediation for
poor performing sites may be having a positive impact on proficiency. Through
continued proficiency testing, identification of variables affecting Luminex
assay outcomes will strengthen efforts to bring standardization to the field.