期刊
MICROBIOLOGY AND IMMUNOLOGY
卷 66, 期 3, 页码 97-112出版社
WILEY
DOI: 10.1111/1348-0421.12952
关键词
bat; Eptesicus; high-throughput sequencing; innate immunity; poly (I; C)
资金
- JSPS KAKENHI [JP20H05682, JP18K19443]
- MEXT KAKENHI [JP16H06429, JP16K21723, JP16H0643, JP17H05821, JP19H04833]
- Hakubi project at Kyoto University
This study comprehensively analyzed the gene expression profiles in Eptesicus bat cell lines to investigate their innate immune responses. The study found that bat cells have distinct immune responses compared to human cells, and identified novel transcripts and microRNAs expressed in bat cells. This study provides valuable insights into bat innate immunity and serves as a resource for future studies.
Bats (Order: Chiroptera), including those of the genus Eptesicus, have been reported to serve as reservoirs of several zoonotic viruses. Notably, bats have been reported to lack obvious symptoms of infection with such viruses and are thought to have unique immune system responses. However, the responses of their innate immune system, the first line of immunity, remain largely unclear. Here, we comprehensively analyzed the expression profiles in two Eptesicus bat cell lines to investigate their innate immune responses. The gene expression profiles after polyinosinic:polycytidylic acid [poly (I:C)] induction were similar between the two bat cell lines, but uniquely upregulated differentially expressed genes were also identified. We also revealed that the upregulated genes of Eptesicus bat cells were distinct from those of human epithelial cells in response to induction. Moreover, the basal expression levels of several immune-related genes were higher in bat cells than in human cells. We also identified unannotated novel transcripts that were upregulated after induction and novel microRNAs expressed in bat cells, some of which were upregulated by poly (I:C) treatment. This is the first report to illustrate the innate immune response in Eptesicus bat cells; therefore, this study provides basic and novel insights into bat innate immunity. Our data represent a valuable resource for future studies into bat immunity and the biology of Eptesicus bats.
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