Inhibition of Porphyromonas gulae and periodontal disease in dogs by a combination of clindamycin and interferon alpha

Author:

Nomura Ryota,Inaba Hiroaki,Yasuda Hidemi,Shirai Mitsuyuki,Kato Yukio,Murakami Masaru,Iwashita Naoki,Shirahata So,Yoshida Sho,Matayoshi Saaya,Yasuda Junya,Arai Nobuaki,Asai Fumitoshi,Matsumoto-Nakano Michiyo,Nakano KazuhikoORCID

Abstract

AbstractPorphyromonas gulae is a major periodontal pathogen in dogs, which can be transmitted to their owners. A major virulence factor of P. gulae consists of a 41-kDa filamentous appendage (FimA) on the cell surface, which is classified into three genotypes: A, B, and C. Thus far, inhibition of periodontal disease in dogs remains difficult. The present study assessed the inhibitory effects of a combination of clindamycin and interferon alpha (IFN-α) formulation against P. gulae and periodontal disease. Growth of P. gulae was significantly inhibited by clindamycin; this inhibition had a greater effect on type C P. gulae than on type A and B isolates. In contrast, the IFN-α formulation inhibited the expression of IL-1β and COX-2 elicited by type A and B isolates, but not that elicited by type C isolates. Furthermore, periodontal recovery was promoted by the administration of both clindamycin and IFN-α formulation to dogs undergoing periodontal treatment; moreover, this combined treatment reduced the number of FimA genotypes in oral specimens from treated dogs. These results suggest that a combination of clindamycin and IFN-α formulation inhibit P. gulae virulence and thus may be effective for the prevention of periodontal disease induced by P. gulae.

Funder

Promotion and Mutual Aid Corporation of Private Schools of Japan

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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