INTRODUCTIONSection in situ hybridization (SISH) is a high-resolution tool used to analyze gene expression patterns. This protocol utilizes the Tecan Freedom EVO150 platform to perform high-throughput SISH on paraffin sections to detect mRNA with a digoxigenin (DIG)-labeled probe. The slide is mounted and imaged before performing immunohistochemistry (IHC) on the same section. The dual reaction enables a marker of protein expression to be localized on the same section as the mRNA and facilitates more accurate annotation of the gene expression.
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