Immunocytochemical localization of carbonic anhydrase isozyme III in equine thymus.
Sections of equine thymus were examined for the presence of carbonic anhydrase (CA) isozymes by an immunohistochemical method. Carbonic anhydrase III, a major enzyme of skeletal muscle, was localized in some of the epithelial-reticular cells of the equine thymus. This finding suggests the presence of a new type of cell in the thymic cortex. The concentration of CA-III in the thymus was 17 micrograms/g wet tissue. CA-I and CA-II were not found in equine thymus.
Nishita
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Laboratory of Veterinary Physiology, School of Veterinary Medicine, Azabu University, Kanagawa, Japan.
Matsushita
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H
D000818:Animals; D002256:Carbonic Anhydrases / Q000378:metabolism*; D004848:Epithelium / Q000201:enzymology; D005260:Female; D006736:Horses / Q000378:metabolism*; D007150:Immunohistochemistry; D013950:Thymus Gland / Q000166:cytology / Q000201:enzymology*
D002256:Carbonic Anhydrases