Document 0090 DOCN M9480090 TI Comparison of a lesion-inducing isolate and a non-lesional isolate of Candida albicans in an immunosuppressed rat model of oral candidiasis. DT 9410 AU Allen CM; Saffer A; Meister RK; Beck FM; Bradway S; Section of Oral and Maxillofacial Surgery and Pathology, Ohio; State University, Columbus 43210. SO J Oral Pathol Med. 1994 Mar;23(3):133-9. Unique Identifier : AIDSLINE MED/94293200 AB Two distinct strain-related patterns of organism-host interaction on dorsal tongue of immunocompetent rats have been identified for Candida albicans: some isolates induce mucosal lesions, while other isolates penetrate the keratin layer but do not produce a lesion. This study examined the behavior of each of the two types of isolates in a cyclosporin-immunosuppressed rat model. Groups B (normal) and D (cyclosporin) were orally inoculated with a lesion-inducing isolate of C. albicans, while a non-lesional isolate was given to Groups A (normal) and C (cyclosporin). A typical dorsal tongue lesion developed in 4/18 rats in Group B and in 13/16 in Group D (P = 0.00267). No significant difference in infection rate between the normal and cyclosporin-treated animals was seen for the non-lesional isolate. The lack of a host inflammatory response associated with the non-lesional isolate may represent an ecologic advantage for the organism. DE Animal Candida albicans/*CLASSIFICATION/ISOLATION & PURIF/*PHYSIOLOGY Candidiasis, Oral/*MICROBIOLOGY/PATHOLOGY Comparative Study Cyclosporine CD4-CD8 Ratio Ecology Female Graft Rejection/PATHOLOGY *Immunocompromised Host Keratin Mouth Mucosa/MICROBIOLOGY/PATHOLOGY Rats Rats, Inbred ACI Rats, Sprague-Dawley Skin Transplantation/IMMUNOLOGY/PATHOLOGY Support, Non-U.S. Gov't T-Lymphocytes, Helper-Inducer/PATHOLOGY T-Lymphocytes, Suppressor-Effector/PATHOLOGY Tongue/*MICROBIOLOGY/PATHOLOGY JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).