PUBLICATION
Immune-related genes response to stimulation of miR-155 overexpression in CIK (ctenopharyngodon idella kidney) cells and zebrafish
- Authors
- Hua, Y., Zhang, J., Jia, Z., Li, J., Xiong, X., Xiong, Y.
- ID
- ZDB-PUB-190906-5
- Date
- 2019
- Source
- Fish & shellfish immunology 94: 142-148 (Journal)
- Registered Authors
- Keywords
- CIK cell, Ctenopharyngodon idella, Immune-related genes, Zebrafish, mIg, miR-155
- MeSH Terms
-
- Adaptive Immunity/genetics*
- Animals
- Carps/genetics*
- Carps/immunology
- DNA-Binding Proteins/genetics
- DNA-Binding Proteins/metabolism
- Fish Proteins/genetics*
- Fish Proteins/metabolism
- Gene Expression Regulation/immunology*
- MicroRNAs/genetics*
- MicroRNAs/metabolism
- Transfection/veterinary
- Zebrafish/genetics*
- Zebrafish/immunology
- Zebrafish Proteins/genetics
- Zebrafish Proteins/metabolism
- PubMed
- 31487536 Full text @ Fish Shellfish Immunol.
Citation
Hua, Y., Zhang, J., Jia, Z., Li, J., Xiong, X., Xiong, Y. (2019) Immune-related genes response to stimulation of miR-155 overexpression in CIK (ctenopharyngodon idella kidney) cells and zebrafish. Fish & shellfish immunology. 94:142-148.
Abstract
MiR-155 regulates the development of germinal-center and the generation of immunoglobulin class-switched plasma cells. However, whether miR-155 is involved in immune response in fish is still unclear. Here, CIK cells transfected with miR-155 overexpressed plasmid inhibited mRNA expression of mIg and Rag2 (P < 0.05). Interestingly, mIg was predicted as a potential target gene of miR-155 by RNAhybrid, with a putative binding site in its CDS. Further, mIg luciferase reporter vectors with successive deletions of mIg cDNA sequence were constructed and dual luciferase reporter assay showed that vectors containing the sequence from 318 to 347 in CDS exhibited lower relative luciferase activity than others without predicted binding region (P < 0.05), which indicated mIg is the target gene of miR-155 and reveal bona fide targeted binding site of mIg for miR-155 in fish. In vivo, the zebrafish were respectively injected with miR-155 overexpressed and empty vector, and showed that miR-155 efficiently expressed in zebrafish (P < 0.01), which consistently decreased mRNA level of immune-related genes, including mIg (P < 0.01), sIg (P < 0.05), AID (P < 0.01), PU.1 (P < 0.05) and Rag2 (P < 0.05) at d 3 and d 6 post injection, comparing to control. Collectively, this work indicates that overexpression of miR-155 suppresses the mRNA level of immune-related genes in CIK cells and zebrafish, and mIg is a novel target gene of miR-155 in fish. These findings provide an insight into the miR-155 modulating adaptive immunity in grass carp and zebrafish.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping