Attachment of Malassezia pachydermatis to the Ear Dermal Cells in Canine Otitis Externa

Journal of Veterinary Medical Science

Yoshio MORIKAWA²  Akira MASUDA¹  Tadashi MIYAMOTO¹  Takeshi SUKEGAWA³  Kazumi SASAI¹  Hiroyuki TANI¹  Eiichiroh BABA¹ 

[1] Veterinary Internal Medicine, Department of Veterinary Medicine, Graduate School of Agriculturee and Biological Sciences, Osaka Prefecture University,;Laboratory Animal Science, Department of Veterinary Medicine, Graduate School of Agriculture and Biological Sciences, Osaka Prefecture University;Masuda Dog & Cat Hospital

关键词: canine;    Malassezia pachydermatis;    otitis externa;   

DOI  :  10.1292/jvms.63.667

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(8)Cited-By(2)To investigate the predominance of Malassezia pachydermatis (M. pachydermatis) as a causative agent of canine otitis externa, ear cerumen samples were observed for adhesion of M. pachydermatis to the cornified epithelial cells by light and electron microscopes. The yeasts appeared not to adhere to the cornified epithelial cells directly, but they seemed to exist in the proximity of the epithelial cells with an electron opaque halo-like space around them. Polysaccharide and lipid staining techniques were conducted to identify the substances existing in that space. Lipid substances, not saccharides, were observed around the yeasts and the cornified epithelial cells. These results suggested that in the canine ear canal malassezia yeast attachment to the cornified epithelial cells is mediated by lipids.

【 授权许可】

Unknown