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Immunohistochemical analysis


With this assay, the presence and location of proteins can be demonstrated in tissue sections.

The aim of these immunohistochemical procedures is to investigate

  • the localization and tissue distribution of target molecules
  • the changes in the expression level/concentration of target molecules in the tissue by fluorescent microscopy (3 channels).

Test system:

In vitro, the following tissues can be investigated:

  • Formalin fixed paraffin-embedded (FFPE) tissues
  • Frozen sections
  • Human, NHP, other animal tissues (healthy or specific disease panel, full tissue array from commercial source)


The evaluation method can be qualitative, semi-quantitative and quantitative (morphometrical analysis, cell counting).

Establishment of staining procedure (selection of antibody – primary and detection system, positive and negative control tissues, optimization of fixation, antibody concentrations, incubation time, blocking method)

Validation of the staining procedure (if necessary) by testing the following parameters:

  • Specificity
  • Sensitivity
  • Repeatability
  • Dose-dependence


Depending on the type of evaluation:

  • Qualitative – negative or positive
  • Semi-quantitative – scoring
  • Quantitative – number of cells, area of positivity per visual field

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