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Demodex canis regulates cholinergic system mediated immunosuppressive pathways in canine demodicosis

Published online by Cambridge University Press:  06 June 2017

P. KUMARI ,
R. NIGAM ,
A. SINGH ,
U. P. NAKADE ,
A. SHARMA ,
S. K. GARG  and
S. K. SINGH
P. KUMARI
Affiliation:
College of Biotechnology, DUVASU, Mathura – 281 001, U.P., India
R. NIGAM
Affiliation:
College of Biotechnology, DUVASU, Mathura – 281 001, U.P., India
A. SINGH
Affiliation:
Department of Veterinary Medicine, College of Veterinary Science and Animal Husbandry, DUVASU, Mathura – 281 001, U.P., India
U. P. NAKADE
Affiliation:
Department of Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, DUVASU, Mathura – 281 001, U.P., India
A. SHARMA
Affiliation:
Department of Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, DUVASU, Mathura – 281 001, U.P., India
S. K. GARG
Affiliation:
Department of Pharmacology and Toxicology, College of Veterinary Science and Animal Husbandry, DUVASU, Mathura – 281 001, U.P., India
S. K. SINGH*
Affiliation:
Department of Veterinary Medicine, College of Veterinary Science and Animal Husbandry, DUVASU, Mathura – 281 001, U.P., India
*
*Corresponding author: Department of Veterinary Medicine, College of Veterinary Science and Animal Husbandry, DUVASU, Mathura – 281 001, U.P., India. E-mail: [email protected]
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Summary

Demodex canis infestation in dogs remains one of the main challenges in veterinary dermatology. The exact pathogenesis of canine demodicosis is unknown but an aberration in immune status is considered very significant. No studies have underpinned the nexus between induction of demodicosis and neural immunosuppressive pathways so far. We have evaluated the involvement of cholinergic pathways in association with cytokines regulation as an insight into the immuno-pathogenesis of canine demodicosis in the present study. Remarkable elevations in circulatory immunosuppressive cytokine interleukin-10 and cholinesterase activity were observed in dogs with demodicosis. Simultaneously, remarkable reduction in circulatory pro-inflammatory cytokine tumour necrosis factor-alpha level was observed in dogs with demodicosis. Findings of the present study evidently suggest that Demodex mites might be affecting the cholinergic pathways to induce immunosuppression in their host and then proliferate incessantly in skin microenvironment to cause demodicosis.

Keywords

cholinesterasegeneralized demodicosisinterleukin-10localized demodicosispyodermatumour necrosis factor-α
Type
Research Article
Information
Parasitology , Volume 144 , Issue 10 , September 2017 , pp. 1412 - 1416
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Copyright
Copyright © Cambridge University Press 2017 

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