Multiplatform comparison of multiplexed bead arrays using HPV genotyping as a test case

Corrie, Simon R., Feng, Qinghua, Blair, Tiffany, Hawes, Stephen E., Kiviat, Nancy B. and Trau, Matt (2011) Multiplatform comparison of multiplexed bead arrays using HPV genotyping as a test case. Cytometry Part A, 79A 9: 713-719. doi:10.1002/cyto.a.21109

Author Corrie, Simon R.
Feng, Qinghua
Blair, Tiffany
Hawes, Stephen E.
Kiviat, Nancy B.
Trau, Matt
Title Multiplatform comparison of multiplexed bead arrays using HPV genotyping as a test case
Journal name Cytometry Part A   Check publisher's open access policy
ISSN 1552-4922
Publication date 2011-09
Sub-type Article (original research)
DOI 10.1002/cyto.a.21109
Volume 79A
Issue 9
Start page 713
End page 719
Total pages 7
Place of publication Hoboken, NJ., U.S.A.
Publisher John Wiley & Sons
Collection year 2012
Language eng
Formatted abstract
While previous studies have investigated the utility of Luminex technology in comparison to other standard techniques, there have been few studies directly comparing different bead-based assays. A key barrier to establishing Luminex technology in research or clinical laboratories is the apparent need to purchase not only encoded bead sets but also the Luminex instrument. However, as flow cytometry instrumentation continues to improve in sensitivity and in the number and diversity of detection parameters, a diverse range of bead-based assays is likely to emerge. Human papillomavirus (HPV) genotyping requires multiplexed analysis of 10–100 individual genotypes per sample, which is well suited to bead-based assays whilst technically challenging and costly for related technologies (e.g., qPCR). Here we performed an unbiased technical comparison between Luminex technology and our in-house 3-mercaptopropyl trimethoxysilane (“MPS”) bead platform, which has been designed for integration with generic cytometry instruments. In genotyping 200 clinical samples, we compared the two bead assays against the goldstandard Roche Line Blot (RLB) assay, and both performed well in receiver-operator characteristic (ROC) curve analysis. We also show instrument-based differences are a significant factor in comparing the methods, which needs to be considered in future comparative studies. These multi-platform analyses are important in establishing the validity of new methods, as well as highlighting specific advantages anddisadvantages of the assays for specific applications.
Keyword Multiplexed bead arrays
Flow cytometry
Human papillomavirus
Human-papillomavirus types
High-risk HPV
Organosilica microspheres
PCR products
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

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