Differential innate immune responses to fowl adenovirus serotype 4 infection in Leghorn male hepatocellular and chicken embryo fibroblast cells

Autor: Xiaolan Hou, Lizhen Wang, Riteng Zhang, Gen Liu, Ting Wang, Bo Wen, Wenchi Chang, Shuizhong Han, Jinjie Han, Junyang Fang, Xuefeng Qi, Jingyu Wang
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Poultry Science, Vol 103, Iss 6, Pp 103741- (2024)
Druh dokumentu: article
ISSN: 0032-5791
DOI: 10.1016/j.psj.2024.103741
Popis: ABSTRACT: Fowl adenovirus serotype 4 (FAdV-4) infections result in substantial economic losses in the poultry industry. Recent findings have revealed that FAdV-4 significantly suppresses the host immune response upon infection; however, the specific viral and host factors contributing to this immunomodulatory activity remain poorly characterized. Moreover, diverse cell types exhibit differential immune responses to FAdV-4 infection. To elucidate cell-specific host responses, we performed transcriptomic analysis of FAdV-4 infected leghorn male hepatocellular (LMH) and chicken embryo fibroblast (CEF) cells. Although FAdV-4 replicated more efficiently in LMH cells, it provoked limited interferon-stimulated gene induction. In contrast, FAdV-4 infection triggered robust antiviral responses in CEF cells, including upregulation of cytosolic DNA sensing and interferon-stimulated genes. Knockdown of key cytosolic DNA sensing molecules enhanced FAdV-4 replication in LMH cells while reducing interferon-stimulated gene expression. Our findings reveal cell-specific virus-host interactions that provide insight into FAdV-4 pathogenesis while identifying factors that mediate antiviral immunity against FAdV-4.
Databáze: Directory of Open Access Journals