Journal
BIOTECHNIQUES
Volume 56, Issue 5, Pages 217-+Publisher
FUTURE SCI LTD
DOI: 10.2144/000114164
Keywords
immuno-quantitative PCR; proximity ligation assay; immuno-PCR; multiplex protein analysis; aptamers
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Quantitative PCR (qPCR) of reverse-transcribed mRNA has revolutionized gene expression analyses. qPCR analysis is based on the prevalent assumption that mRNA transcript numbers provide an adequate measure of specific biomarker expression. However, taking the complexity of protein turnover into account, there is a need to correlate qPCR-derived transcriptional patterns with protein translational patterns so as to not leave behind important pathobiological details. One emerging approach in protein analysis is PCR,coupled protein quantification, often denoted as immuno-PCR (iPCR), which targets soluble proteins. Here we review recent trends and applications in iPCR assays that may bridge the gap between classical enzyme-linked immunosorbent assays and mass spectrometry methodologies in terms of sensitivity and multiplexing.
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