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Jiao D, Yang Z, Wang L, Hu B, Wang J, Xu A, Cheng W, Jia B, Qing Y, Zhao HY, Wei HJ. Endogenous leptin promotes autophagy in EBSS-induced PFCs. Anim Cells Syst (Seoul) 2019; 23:318-325. [PMID: 31700697 PMCID: PMC6830286 DOI: 10.1080/19768354.2019.1651766] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 05/19/2019] [Accepted: 07/30/2019] [Indexed: 11/24/2022] Open
Abstract
Leptin is an important adipokine and plays a vital role in animals. However, the role of leptin in the autophagic response of pig fibroblast cells (PFCs) has not been fully elucidated. In this study, we investigated the relationship between leptin and autophagy as well as underlying molecular basis. We found that PFCs treated with EBSS could secrete leptin, and the leptin concentration in the supernatant of leptin transgenic PFCs was higher than that of WT PFCs. We found an increase in LC3-II protein level and a decrease in p62 protein level in treated leptin transgenic PFCs compared with treated WT PFCs. Meanwhile, we observed an increase of autophagosomes by transmission electron microscopy and an enhancement of the accumulation of LC3 puncta in the cytoplasm of treated leptin transgenic PFCs, and these effects were further augmented by Baf A1 treatment. Furthermore, we detected the expression levels of 7 autophagy signaling pathway genes and 17 autophagy-related (ATG) genes by q-PCR. We found that between the two types of EBSS-treated cells 3 genes expression pattern were significantly different among the 7 autophagy signaling pathway genes and 8 genes expression pattern were significantly differernt among the ATG genes. These results indicated that leptin may promote autophagy and involving the downregulation of FOXO1 and LMNA genes via an unknown pathway which causes the upregulation of the 4 genes and the downregulation of 4 genes.
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Affiliation(s)
- Deling Jiao
- Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming, People’s Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Zhen Yang
- Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming, People’s Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Lulu Wang
- Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming, People’s Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Binyue Hu
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Jing Wang
- Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming, People’s Republic of China
- Xenotransplantation Engineering Research Center in Yunnan Province, Kunming, People’s Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Anyong Xu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Wenmin Cheng
- Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming, People’s Republic of China
- Xenotransplantation Engineering Research Center in Yunnan Province, Kunming, People’s Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Baoyu Jia
- Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming, People’s Republic of China
- Xenotransplantation Engineering Research Center in Yunnan Province, Kunming, People’s Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Yubo Qing
- Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming, People’s Republic of China
- Xenotransplantation Engineering Research Center in Yunnan Province, Kunming, People’s Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
- College of Animal Science and Technology, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Hong-Ye Zhao
- Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming, People’s Republic of China
- Xenotransplantation Engineering Research Center in Yunnan Province, Kunming, People’s Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
| | - Hong-Jiang Wei
- Key Laboratory of Animal Gene Editing and Animal Cloning in Yunnan Province, Kunming, People’s Republic of China
- Xenotransplantation Engineering Research Center in Yunnan Province, Kunming, People’s Republic of China
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan Agricultural University, Kunming, People’s Republic of China
- College of Veterinary Medicine, Yunnan Agricultural University, Kunming, People’s Republic of China
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