Utilizing decellularized bio-membranes to optimize histopathological embedding of small tissues

Area of Science:

• Biomaterials Science
• Pathology
• Histotechnology

Background:

• Minimally invasive biopsy techniques yield small tissue samples crucial for clinical pathology.
• Small tissue samples are prone to loss during standard paraffin embedding processes.
• Current methods to prevent tissue loss, like nonbiological pre-embedding, are often cumbersome and can increase loss risk.

Purpose of the Study:

• To develop a convenient decellularized embedding material from biological membranes.
• To effectively protect small tissue samples from loss during paraffin embedding.
• To simplify and shorten the pathological embedding workflow.

Main Methods:

• Decellularization of three animal-derived membrane tissues (pig small intestine selected).
• Optimization of material properties (softening, transparency, drying).
• Embedding of various small tissue samples followed by H&E, Masson, immunofluorescence, and immunohistochemical staining.

Main Results:

• A decellularized material derived from biomembrane tissues (DMBT) was successfully developed.
• DMBT effectively protected small tissues from loss during paraffin embedding.
• The use of DMBT eliminated the need for pre-embedding, shortening the overall process.

Conclusions:

• DMBT offers a novel and convenient solution for preventing small tissue loss in pathology.
• This biomaterial streamlines the embedding process, enhancing efficiency in laboratory and clinical settings.
• DMBT represents a valuable new tool for pathological research and diagnostics.