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Liu M, Tang H, Gao K, Zhang X, Ma Z, Jia Y, Yang Z, Inam M, Gao Y, Wang G, Shan X. Poly (I:C)-Induced microRNA-30b-5p Negatively Regulates the JAK/STAT Signaling Pathway to Mediate the Antiviral Immune Response in Silver Carp ( Hypophthalmichthys molitrix) via Targeting CRFB5. Int J Mol Sci 2024; 25:5712. [PMID: 38891899 PMCID: PMC11172372 DOI: 10.3390/ijms25115712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2024] [Revised: 05/16/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
In aquaculture, viral diseases pose a significant threat and can lead to substantial economic losses. The primary defense against viral invasion is the innate immune system, with interferons (IFNs) playing a crucial role in mediating the immune response. With advancements in molecular biology, the role of non-coding RNA (ncRNA), particularly microRNAs (miRNAs), in gene expression has gained increasing attention. While the function of miRNAs in regulating the host immune response has been extensively studied, research on their immunomodulatory effects in teleost fish, including silver carp (Hyphthalmichthys molitrix), is limited. Therefore, this research aimed to investigate the immunomodulatory role of microRNA-30b-5p (miR-30b-5p) in the antiviral immune response of silver carp (Hypophthalmichthys molitrix) by targeting cytokine receptor family B5 (CRFB5) via the JAK/STAT signaling pathway. In this study, silver carp were stimulated with polyinosinic-polycytidylic acid (poly (I:C)), resulting in the identification of an up-regulated miRNA (miR-30b-5p). Through a dual luciferase assay, it was demonstrated that CRFB5, a receptor shared by fish type I interferon, is a novel target of miR-30b-5p. Furthermore, it was found that miR-30b-5p can suppress post-transcriptional CRFB5 expression. Importantly, this study revealed for the first time that miR-30b-5p negatively regulates the JAK/STAT signaling pathway, thereby mediating the antiviral immune response in silver carp by targeting CRFB5 and maintaining immune system stability. These findings not only contribute to the understanding of how miRNAs act as negative feedback regulators in teleost fish antiviral immunity but also suggest their potential therapeutic measures to prevent an excessive immune response.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Yunhang Gao
- Department of Veterinary Medicine, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China; (M.L.); (H.T.); (K.G.); (X.Z.); (Z.M.); (Y.J.); (Z.Y.); (M.I.); (X.S.)
| | - Guiqin Wang
- Department of Veterinary Medicine, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China; (M.L.); (H.T.); (K.G.); (X.Z.); (Z.M.); (Y.J.); (Z.Y.); (M.I.); (X.S.)
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Zhao Y, Gu J, Wu R, Liu B, Dong P, Yu G, Zhao D, Li G, Yang Z. Characteristics of conserved microRNAome and their evolutionary adaptation to regulation of immune defense functions in the spleen of silver carp and bighead carp. FISH & SHELLFISH IMMUNOLOGY 2024; 144:109312. [PMID: 38122951 DOI: 10.1016/j.fsi.2023.109312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/12/2023] [Accepted: 12/17/2023] [Indexed: 12/23/2023]
Abstract
Immune defense functions of silver carp (Hypophthalmichthys molitrix) and bighead carp (Hypophthalmichthys nobilis) have shown obvious evolutionary divergence. MiRNAs participate in the fine regulation of immune function. However, the evolutionary adaptation of miRNAs in the regulation of immune defense function is still poorly understood in silver carp and bighead carp. Here, small RNA libraries were constructed from the spleen tissue of one-year-old and three-year-old healthy silver carp and bighead carp, 424 and 422 known conserved miRNAs were respectively identified from the spleen of silver carp and bighead carp by bioinformatic analysis, which 398 were shared between the two species. These conserved miRNAs showed highly similar expression patterns between silver carp and bighead carp, but the abundance in spleen varied greatly in different species. Family analysis showed that miRNA families including mir-8, mir-7, mir-23, mir-338, mir-30, mir-27, mir-221, mir-19, mir-181, mir-17, mir-15, mir-148, mir-130, mir-10 and let-7 were the main miRNAs in the spleen of silver carp and bighead carp. 27 and 51 significant differentially expressed (SDE) miRNAs were identified from silver carp and bighead carp, respectively. Evolution analysis for the predicted target genes of SDE-miRNAs showed that ten biological processes such as blood coagulation, cell adhesion mediated by integrin and adaptive immune response were positively selected. In addition, immune genes including TLR3, NFATC3, MALT1, B2M, GILT and MHCII were positively selected only in silver carp, and they were specifically targeted by the SDE-miRNAs including miR-9-5p, miR-196a-5p, miR-375, miR-122, miR-722, miR-132-3p, miR-727-5p, miR-724, miR-19d-5p and miR-138-5p, respectively. PLA2G4 in Fc epsilon RI signaling pathway was positively selected only in bighead carp and was specifically targeted by the SDE-miRNAs including miR-222b, miR-22b-5p, miR-15c, miR-146a, miR-125c-3p, miR-221-5p, miR-2188-5p, miR-142a-3p, miR-212, miR-138-5p and miR-15b-5p. In particular, SDE-miRNAs such as miR-144-3p, miR-2188-3p, miR-731, miR-363-3p and miR-218b could simultaneously target multiple evolutionarily differentiated immune-related genes. These results indicated that in the spleen of silver carp and bighead carp, conserved miRNAs have obvious evolutionary adaptations in the regulation of immune defense function. The results of this study can provide valuable resources for further revealing themechanism of miRNA in the formation of resistance traits evolution between silver carp and bighead carp.
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Affiliation(s)
- Yinli Zhao
- College of Biological Engineering, Henan University of Technology, Zheng Zhou, Henan Province, 450001, PR China.
| | - Jinxing Gu
- College of Animal Science and Technology, Henan Agricultural University, Zheng Zhou, Henan Province, 450046, PR China.
| | - Ran Wu
- College of Animal Science and Technology, Henan Agricultural University, Zheng Zhou, Henan Province, 450046, PR China.
| | - Bianzhi Liu
- College of Animal Science and Technology, Henan Agricultural University, Zheng Zhou, Henan Province, 450046, PR China.
| | - Pengsheng Dong
- College of Animal Science and Technology, Henan Agricultural University, Zheng Zhou, Henan Province, 450046, PR China.
| | - Guangqing Yu
- College of Animal Science and Technology, Henan Agricultural University, Zheng Zhou, Henan Province, 450046, PR China.
| | - Daoquan Zhao
- Research Station for Field Scientific Observation of Aquatic Organisms in Yiluo River, Yellow River Basin, Lushi, Henan Province, 472200, PR China.
| | - Guoxi Li
- College of Animal Science and Technology, Henan Agricultural University, Zheng Zhou, Henan Province, 450046, PR China.
| | - Zhenjiang Yang
- College of Animal Science and Technology, Henan Agricultural University, Zheng Zhou, Henan Province, 450046, PR China.
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