Rapid tissue processing using a temperature-controlled collection device to preserve tumor biomarkers

Area of Science:

• Pathology
• Biomedical Engineering
• Diagnostic Assay Development

Background:

• Advances in diagnostic assays have outpaced tissue specimen collection and processing techniques.
• Preanalytical variables, such as tissue temperature during transport, significantly impact assay results.
• Standard fixation protocols can be time-consuming, potentially delaying diagnostic turnaround times.

Purpose of the Study:

• To design and evaluate a novel surgical tissue collection device for maintaining and monitoring sample temperature and motion during transport.
• To assess the effectiveness of this device combined with a rapid cold-hot fixation protocol for biomarker preservation.
• To improve both diagnostic quality and turnaround time in tissue pathology.

Main Methods:

• A novel transport device was used to collect 50 primary and metastatic liver tumors.
• Tissue samples were fixed using a rapid cold-hot fixation protocol.
• Immunohistochemical (IHC) assays were performed to compare the novel device and fixation protocol against standard clinical methods.
• Two pathologists conducted a blinded evaluation of IHC staining intensities and immunophenotypes.

Main Results:

• The novel cold transport device and rapid fixation protocol successfully preserved diagnostic utility.
• No significant differences in IHC staining intensities or immunophenotype impressions were observed compared to standard methods.
• The combined approach demonstrated improvements in overall processing time.

Conclusions:

• The novel cold transport device and rapid fixation protocol can be safely and effectively implemented.
• This integrated system allows for monitoring of specimen conditions, preserving diagnostic integrity.
• The technology offers a dual benefit of enhanced specimen quality and reduced diagnostic turnaround time.