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A differential staining method for adenohypophyseal cells

Y Kikui¹, A Miki

¹Department of Anatomy, Kobe University School of Medicine, Japan.

Archives of Histology and Cytology

|August 1, 1995

Summary

A modified azan staining technique improves the differential demonstration of human adenohypophyseal cells. This enhanced method clearly classifies six cell types by cytoplasm staining, outperforming original azan and Masson-Goldner methods.

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Area of Science:

Histology
Cell Biology
Endocrinology

Background:

Adenohypophyseal cells require precise staining for accurate classification.
Existing staining methods like original azan and Masson-Goldner have limitations in differential demonstration.

Purpose of the Study:

To report a modified azan staining technique for improved differential demonstration of human adenohypophyseal cells.
To enhance the classification of adenohypophyseal cell types based on cytoplasmic staining characteristics.

Main Methods:

Human hypophyses were fixed in Bouin's solution and embedded in paraffin.
Sections underwent gentle oxidation followed by original azan staining and additional aniline blue staining.
The modified technique involved oxidation with potassium permanganate and sulfuric acid, then azan staining and aniline blue counterstaining.

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Main Results:

The modified method clearly classified human adenohypophyseal cells into six distinct groups based on cytoplasmic staining.
Alpha-acidophilic cells stained red, epsilon-acidophilic cells orange-red, beta-basophilic cells deep blue, delta-basophilic cells weakly blue, gamma-chromophobic cells faintly red, and ACTH-cells faintly blue.
Collagenous fibers stained blue, and erythrocytes stained orange-red to red.

Conclusions:

The modified azan staining technique provides superior differential staining of human adenohypophyseal cells compared to original azan and Masson-Goldner methods.
This improved technique allows for clearer classification of various adenohypophyseal cell types.
The method offers enhanced visualization of cellular components and extracellular matrix elements.