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Related Experiment Videos

Application of labeling techniques to archival temporal bone sections

Q Tian1, F H Linthicum, E M Keithley

  • 1House Ear Institute, Los Angeles, California, USA.

The Annals of Otology, Rhinology, and Laryngology
|February 4, 1999
PubMed
Summary

Immunohistochemistry and histochemistry can analyze molecules in human inner ear pathology. Despite postmortem changes and long storage, some archival tissues yield good immunostaining results.

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Area of Science:

  • Otolaryngology
  • Histopathology
  • Molecular Biology

Background:

  • Traditional human inner ear pathology relies on hematoxylin and eosin staining of celloidin-embedded temporal bone sections.
  • Advancements allow molecular analysis using immunohistochemical and histochemical techniques.

Purpose of the Study:

  • To evaluate the impact of postmortem changes (PMCs) and storage duration on immunostaining intensity in archival human temporal bone sections.
  • To determine the feasibility of using advanced staining techniques on long-term stored tissues.

Main Methods:

  • Applied 14 antibodies and 6 lectins to 420 archival, celloidin-embedded human temporal bone sections.
  • Graded sections for PMCs (from good preservation to severe autolysis) and storage time (up to 40 years).
  • Ranked staining intensities from 'no label' to 'dense label'.

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Main Results:

  • Statistical analysis showed that PMCs and storage time generally decrease staining intensity.
  • However, some antibodies provided good immunostaining results even in poorly fixed tissues or those stored for extended periods.
  • Staining intensities varied significantly among different antibodies and lectins.

Conclusions:

  • Immunohistochemistry and histochemistry are valuable for studying human inner ear pathology in archival tissues.
  • Good immunostaining is achievable despite significant postmortem autolysis and long-term storage, depending on the specific antibody.
  • This opens possibilities for retrospective molecular studies on valuable temporal bone collections.