Multiplexed protein profiling on antibody-based microarrays by rolling circle amplification.
Multiplexed immunoassays on antibody-based protein microarrays are an attractive solution for analyzing biological responses in normal and diseased states. Recently, the feasibility and utility of these assays has been established as concerns about specificity and sensitivity are being overcome by careful quality control and amplification technologies such as rolling circle amplification (RCA). RCA-amplified protein chips can now profile up to 150 proteins in various substrates including serum, plasma, and supernatants with high sensitivity, broad dynamic range and good reproducibility. Diagnostic utility of RCA-amplified protein chips has been shown for multiplexed allergen testing. When allied with multivariate statistical analysis, RCA protein chips have the potential to identify multiplexed biomarker classifiers for disease diagnosis and drug response.[1]References
- Multiplexed protein profiling on antibody-based microarrays by rolling circle amplification. Kingsmore, S.F., Patel, D.D. Curr. Opin. Biotechnol. (2003) [Pubmed]
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