RIG-I expression pattern and cytokine profile in indigenous ducks infected with duck plague virus

• Published in: Microbial pathogenesis Vol. 181; p. 106205
• Main Authors: Chabukdhara, Prasanta, Kalita, Dhruba Jyoti, Tamuly, Shantanu, Bora, Durlav Prasad, Saikia, Deep Prakash, Borah, Sanjib, Hazorika, Mousumi, Borah, Mukul C., Gogoi, Sophia M., Deka, Naba Jyoti, Gogoi, Ankita, Bordoloi, Gautam, Khargharia, Sanjib, Pathak, Siddhartha S.
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01-08-2023
• Subjects: Cytokines; Duck plague virus; Innate immunity; RIG-I; RIG-I; Innate immunity; Duck plague virus; Cytokines
• ISSN: 0882-4010; 1096-1208
• DOI: 10.1016/j.micpath.2023.106205

The present study was undertaken to elucidate mRNA expression pattern of RIG-I and serum cytokines profile alterations in indigenous ducks of Assam, India viz. Pati, Nageswari and Cinahanh in response to natural infections of duck plague virus. Field outbreaks of duck plague virus were attended during the study period for collection of tissue and blood samples. The ducks under study were divided into three distinct groups as per health status i.e. healthy, duck plague infected and recovered. Results from the study revealed that RIG-I gene expression was significantly upregulated in liver, intestine, spleen, brain and PBMC of both infected and recovered ducks. However, fold changes in RIG- I gene expression was lower in recovered ducks as compared to infected ones which indicated continued stimulation of RIG-I gene by the latent viruses. Both serum pro and anti-inflammatory cytokines were elevated in infected ducks as compared to healthy and recovered ducks, indicating activation of inflammatory reactions in the ducks due to virus invasion. The results from the study indicated that innate immune components of the infected ducks were stimulated in order to make an attempt to resist the virus from the infected ducks.
•Elucidation of mRNA expression pattern of RIG-I and serum cytokines profile alterations in indigenous ducks in response to natural infections of duck plague virus.•RIG-I gene expression significantly upregulated in liver, intestine, spleen, brain and PBMC of both duck plague infected and recovered ducks.•Fold changes in RIG-I gene expression was lower in recovered ducks as compared to infected ones indicating continued stimulation of RIG-I gene by the latent viruses.•Study indicated stimulation and activation of innate immune components as a result of duck plague virus infection.