Validation of immunocytochemistry as a morphomolecular technique

Area of Science:

• Cytopathology
• Molecular Pathology
• Clinical Laboratory Science

Background:

• Immunocytochemistry (ICC) is an established technique for analyzing cellular material, particularly when tissue biopsies are difficult to obtain.
• Unlike immunohistochemistry (IHC), ICC analyzes isolated cells, offering rapid fixation that protects cellular integrity.
• Preanalytic variables, including fixation, are critical for ICC test quality and require careful control.

Purpose of the Study:

• To propose a rigorous three-step validation protocol for Immunocytochemistry (ICC).
• To advocate for a comprehensive morphomolecular approach in ICC validation.
• To emphasize the application of validated ICC in therapeutic contexts.

Main Methods:

• A three-step validation protocol for Immunocytochemistry (ICC) is presented.
• The protocol emphasizes a morphomolecular approach, integrating cellular morphology with molecular analysis.
• The validation process is designed to meet the rigorous standards of molecular pathology techniques.

Main Results:

• The proposed protocol ensures a comprehensive validation of ICC assays.
• The approach facilitates the reliable use of ICC for diagnostic and therapeutic purposes.
• Immediate and rapid fixation in ICC protects cellular morphology and integrity.

Conclusions:

• A robust, three-step validation protocol is essential for Immunocytochemistry (ICC).
• A morphomolecular approach enhances the reliability and utility of ICC.
• Validated ICC is crucial for advancing therapeutic applications in cancer diagnostics.