Multiplex Spatial Protein Detection by Combining Immunofluorescence with Immunohistochemistry.
Methods in molecular biology (Clifton, N.J.)(2023)
摘要
Technologies for staining and imaging multiple antigens in single tissue sections are developing rapidly due to their potential to uncover spatial relationships between proteins with cellular resolution. Detections are performed simultaneously or sequentially depending on the approach. However, several technologies can detect limited numbers of antigens or require expensive equipment and reagents. Another serious concern is the lack of flexibility. Most commercialized reagents are validated for defined antibody panels, and introducing any changes is laborious and costly. In this chapter, we describe a method where we combine, for the first time, multiplexed IF followed by sequential immunohistochemistry (IHC) with AEC chromogen on Leica Bond staining processors with paraffin tissue sections. We present data for successful detection of 10 antigens in a single tissue section with preserved tissue integrity. Our method is designed for use with any combination of antibodies of interest, with images collected using whole slide scanners. We include an image viewing and image analysis workflow using nonlinear warping to combine all staining passes in a single full-resolution image of the entire tissue section, aligned at the single cell level.
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关键词
AEC chromogen,Alignment,Immunofluorescence (IF),Immunohistochemistry (IHC),Leica Bond RX,Multiplex,Visualization
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