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Xu W, Fu W, Long M, Yuan X, Zhao K, Hu X, Liu J, Liu W, Peng L, Xiao Y. Rapid establishment of Oct4: EGFP transgenic zebrafish homozygote through gynogenesis for monitoring the pluripotency during induction of pluripotent stem cells. REPRODUCTION AND BREEDING 2022. [DOI: 10.1016/j.repbre.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Xu W, Li H, Peng L, Pu L, Xiang S, Li Y, Tao L, Liu W, Liu J, Xiao Y, Liu S. Fish Pluripotent Stem-Like Cell Line Induced by Small-Molecule Compounds From Caudal Fin and its Developmental Potentiality. Front Cell Dev Biol 2022; 9:817779. [PMID: 35127728 PMCID: PMC8811452 DOI: 10.3389/fcell.2021.817779] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 12/31/2021] [Indexed: 12/26/2022] Open
Abstract
The technique of induced pluripotent stem cells has significant application value in breeding and preserving the genetic integrity of fish species. However, it is still unclear whether the chemically induced pluripotent stem cells can be induced from non-mammalian cells or not. In this article, we first verify that fibroblasts of fish can be chemically reprogrammed into pluripotent stem cells. These induced pluripotent stem-like cells possess features of colony morphology, expression of pluripotent marker genes, formation of embryoid bodies, teratoma formation, and the potential to differentiate into germ cell-like cells in vitro. Our findings will offer a new way to generate induced pluripotent stem cells in teleost fish and a unique opportunity to breed commercial fish and even save endangered fish species.
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Affiliation(s)
- Wenting Xu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Huajin Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Liangyue Peng
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
- *Correspondence: Liangyue Peng, ; Yamei Xiao, ; Shaojun Liu,
| | - Liyu Pu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Sijia Xiang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yue Li
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Leiting Tao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Wenbin Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Jinhui Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
| | - Yamei Xiao
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
- *Correspondence: Liangyue Peng, ; Yamei Xiao, ; Shaojun Liu,
| | - Shaojun Liu
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Normal University, Changsha, China
- College of Life Sciences, Hunan Normal University, Changsha, China
- *Correspondence: Liangyue Peng, ; Yamei Xiao, ; Shaojun Liu,
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Low expression of miR-19a-5p is associated with high mRNA expression of diacylglycerol O-acyltransferase 2 (DGAT2) in hybrid tilapia. Genomics 2021; 113:2392-2399. [PMID: 34022348 DOI: 10.1016/j.ygeno.2021.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 04/06/2021] [Accepted: 05/17/2021] [Indexed: 11/24/2022]
Abstract
DGAT2 (acyl CoA:diacylglycerol acyltransferase 2) is a key and rate-limiting enzyme that catalyzes the final step of triglyceride (TG) synthesis. In this study, hybrid tilapia were generated from Nile tilapia (♀) and blue tilapia (♂) crossing. The TG content levels in the liver of these tilapia were measured. The results showed that the TG content was higher in the hybrid tilapia. In addition, protein and mRNA expression levels in the tilapia livers were determined. Higher hepatic mRNA and protein expression of DGAT2 in the hybrid fish was found. A luciferase reporter assay with HEK293T cells revealed that miRNA-19a-5p targeted the 3'UTR of DGAT2, suggesting a direct regulatory mechanism. Using qRT-PCR, we found that DGAT2 mRNA levels had a negative correlation with miRNA-19a-5p expression in Nile tilapia and hybrid. Taken together, these findings provide evidence that miRNA-19a-5p is involved in TG synthesis in the regulation of lipid metabolism in tilapia.
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