期刊
FISH & SHELLFISH IMMUNOLOGY
卷 140, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fsi.2023.109002
关键词
Pm-novel-miR-63; Transplant immunization; Pinctada fucata martensii
This study analyzed the function and regulatory role of a novel microRNA miR-63 in the immune response of pearl oysters. The results showed that the expression of this microRNA increased after pathogen stimulation and overexpression of it resulted in decreased activity of immune and antioxidant enzymes in the serum.
Novel microRNA miR-63 (novel-miR-63) from pearl oyster Pinctada fucata martensii (Pm-novel-miR-63) is a species-specific miRNA. Our previous research has shown that the expression of Pm-novel-miR-63 was significantly downregulated at 24 h after nucleus transplantation. In this study, we analyzed the function and regulatory role of Pm-novel-miR-63 in the immune response of pearl oysters. The results showed that Pm-novel-miR63 expression increased after the stimulation of pathogen associated molecular patterns at 6-12 h, and the activity of immune and antioxidant enzymes in the serum decreased after Pm-novel-miR-63 overexpression. Transcriptome analysis revealed that Pm-novel-miR-63 participated in regulating transplantation immunity through the Notch and mRNA surveillance signaling pathways. Target prediction and dual luciferase analysis revealed that Pm-GDP-FucTP, Pm-CysLTR2, and Pm-RLR were the target genes of Pm-novel-miR-63. These results suggested that Pm-novel-miR-63 participated in regulating the immune response in pearl oysters and can serve as a new interference target to reasonably control excessive immune rejection in pearl culture.
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