Integrative analysis of circRNA/miRNA/mRNA regulatory network reveals the potential immune function of circRNAs in the Bombyx mori fat body

文献类型： 外文期刊

第一作者： Yin, Haotong

作者： Yin, Haotong;Shen, Manman;Zhang, Zhengdong;Huang, Haoling;Zhao, Zhimeng;Guo, Xijie;Wu, Ping;Zhang, Shaolun;Shen, Manman;Zhang, Zhengdong;Guo, Xijie;Wu, Ping

作者机构：

关键词： BmNPV; circRNA; circRNA/miRNA/mRNA; Host-pathogen interaction

期刊名称：JOURNAL OF INVERTEBRATE PATHOLOGY （ 影响因子：2.841； 五年影响因子：3.368 ）

ISSN： 0022-2011

年卷期： 2021 年 179 卷

页码：

收录情况： SCI

摘要： Bombyx mori nucleopolyhedrosis virus (BmNPV) is one of the greatest threats to sustainable development of the sericulture industry. Circular RNA (circRNA), a type of non-coding RNA, has been shown to play important roles in gene expression regulation, immune response, and diseases. The fat body is a tissue with both metabolic and immune functions. To explore the potential immune function of circRNAs, we analyzed differentially expressed (DE)circRNAs, microRNAs(miRNAs), and mRNAs in the B. mori fat body in response to BmNPV infection using high-throughput RNA sequencing. A total of 77 DEcircRNAs, 32 DEmiRNAs, and 730 DEmRNAs that are associated with BmNPV infection were identified. We constructed a DEcircRNA/DEmiRNA/DEmRNA and DEcircRNA/DEmiRNA/BmNPV gene regulatory network and validated the differential expression of circ 0001432 and its corresponding miRNA (miR-2774c and miR-3406-5p) and mRNA (778467 and 101745232) in the network. Tissue-specific expression of circ 0001432 and its expression at different time points were also examined. KEGG pathway analysis of DEmRNAs, target genes of DEmiRNAs, and host genes of DEcircRNAs in the network showed that these genes were enriched in several metabolic pathways and signaling pathways, which could play important roles in insect immune responses. Our results suggest that circRNA could be involved in immune responses of the B. mori fat body and help in understanding the molecular mechanisms underlying silkworm-pathogen interactions.

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