Morphologic characterization and cytokine response of chicken bone-marrow derived dendritic cells to infection with high and low pathogenic avian influenza virus

Author:

Mo JongsukORCID,Segovia KarenORCID,Chrzastek KlaudiaORCID,Briggs KelseyORCID,Kapczynski Darrell R.ORCID

Abstract

AbstractDendritic cells (DCs) are professional antigen-presenting cells, which are key components of the immune system and involved in the early immune response. DCs are specialized in capturing, processing, and presenting antigens to facilitate immune interactions. Chickens infected with avian influenza virus (AIV) demonstrate a wide range of clinical symptoms, based on pathogenicity of the virus. Low pathogenic avian influenza (LPAI) viruses typically induce mild clinical signs, whereas high pathogenic avian influenza (HPAI) induce more severe disease, which can lead to death within days. For this study, chicken bone marrow-derived DC (ckBM-DC)s were produced and infected with high and low pathogenic avian influenza viruses of H5N2 or H7N3 subtypes to characterize innate immune responses, study effect on cell morphology, and evaluate virus replication. A strong proinflammatory response, including chicken interleukin-1β, and stimulation of the interferon response pathway were observed at 8 hours post infection. Microscopically, the DCs underwent morphological changes from classic elongated dendrites to a more general rounded shape that eventually lead to cell death with the presence of scattered cellular debris. Differences in onset of morphologic changes were observed between H5 and H7 subtypes. Increases in viral titers demonstrated that both HPAI and LPAI are capable of infecting and replicating in DCs. The elevated expression of infected DCs may be indicative with a dysregulation of the immune response typically seen with HPAI infections.

Publisher

Cold Spring Harbor Laboratory

Reference51 articles.

1. 2022-2023 Confirmations of Highly Pathogenic Avian Influenza in Commercial and Backyard Flocks. Avian Influenza 2023 January 18, 2023 April 11, 2023]; Available from: https://www.aphis.usda.gov/aphis/ourfocus/animalhealth/animal-disease-information/avian/avian-influenza/hpai-2022/2022-hpai-commercial-backyard-flocks.

2. The ecology and adaptive evolution of influenza A interspecies transmission;Influenza and Other Respiratory Viruses,2017

3. Evolution, global spread, and pathogenicity of highly pathogenic avian influenza H5Nx clade 2.3.4.4

4. Comparative analysis of PB2 residue 627E/K/V in H5 subtypes of avian influenza viruses isolated from birds and mammals;Front Vet Sci,2023

5. Cross reactive cellular immune responses in chickens previously exposed to low pathogenic avian influenza

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