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Combining Lipophilic dye, in situ Hybridization, Immunohistochemistry, and Histology
13:05

Combining Lipophilic dye, in situ Hybridization, Immunohistochemistry, and Histology

Published on: March 17, 2011

Fluorescence immunohistochemistry in combination with differential interference contrast microscopy for studies of

Shin-Ichi Iwasaki1, Hidekazu Aoyagi

  • 1Advanced Research Center, School of Life Dentistry at Niigata, The Nippon Dental University, Niigata, Japan. iwasaki@ngt.ndu.ac.jp

Methods in Molecular Biology (Clifton, N.J.)
|December 15, 2010
PubMed

Insights

A new technique combines immunofluorescence and differential interference contrast microscopy to map protein locations in developing rat tongues. This method reveals detailed changes in keratin 13 and type III collagen during filiform papilla morphogenesis.

Area of Science:

  • Histology
  • Cell Biology
  • Developmental Biology

Background:

  • Understanding tissue development requires precise localization of cellular and extracellular matrix components.
  • Current imaging techniques may have limitations in simultaneously visualizing protein expression and tissue morphology at high resolution.

Purpose of the Study:

  • To develop and validate a novel imaging technique combining immunofluorescence and differential interference contrast (DIC) microscopy.
  • To investigate the spatio-temporal expression patterns of keratin 13 (K13) and type III collagen (CIII) during rat tongue morphogenesis.

Main Methods:

  • Developed a correlative imaging approach using immunofluorescent staining of semi-ultrathin epoxy-embedded sections.
  • Acquired corresponding DIC light microscopy images to visualize tissue structures.
  • Analyzed the immuno-localization of K13 and CIII in rat tongue filiform papillae during postnatal development (P7 and P14).

Main Results:

  • Successfully demonstrated the immuno-localization of K13 in intermediate-layer cells of interpapillary cell columns.
  • Detected CIII in connective tissue fibers between the lingual epithelium and muscle, as well as within the muscle's endomysium and perimysium.
  • Correlated K13 and CIII expression patterns with observed keratinization and myogenesis during papilla development.

Conclusions:

  • The combined immunofluorescence and DIC microscopy technique provides detailed insights into immuno-localization during tissue morphogenesis.
  • Revealed specific spatial and temporal expression patterns of K13 and CIII during the development of rat tongue filiform papillae.
  • This method offers a powerful tool for studying the molecular basis of histological and cellular development.

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