Application of microwave irradiation to immunohistochemistry: Preservation of antigens of the extracellular matrix

Robert A. Moran, Frank Nelson, Jaishree Jagirdar, Fiorenzo Paronetto

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Microwave irradiation as a means of fixation was evaluated for the preservation of extracellular matrix antigens such as collagen III, IV, fibronectin and laminin in both lung and liver specimens. Small tissue samples were placed in normal saline or periodatelysine-paraformaldehyde (PLP) and irradiated for 30 sec to bring them to a temperature of 50 C. The tissue was then processed rapidly in a tissue processor adjusted to a 2 hr cycle and embedded in paraffin. Sections were immunostained. For comparison, routine cryostat sections as well as sections of formalin fixed tissue were used. Microwave irradiation in saline gave excellent morphological detail, comparable to that in formalin fixed tissue. All four antigens evaluated were well preserved without the necessity of prior pepsin digestion. Microwave fixation is promising for preservation of antigenicity and morphological detail, and considerably reduces the time required for processing.

Original languageEnglish (US)
Pages (from-to)263-269
Number of pages7
JournalBiotechnic and Histochemistry
Volume63
Issue number5
DOIs
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Histology
  • Medical Laboratory Technology

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