1
|
Zhang S, Xie H, Pan P, Wang Q, Yang B, Li Y, Wei Y, Sun Y, Wei Y, Jiang Q, Huang Y. EGCG alleviates heat-stress-induced fat deposition by targeting HSP70 through activation of AMPK-SIRT1-PGC-1α in porcine subcutaneous preadipocytes. Biochem Pharmacol 2024; 225:116250. [PMID: 38705537 DOI: 10.1016/j.bcp.2024.116250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 04/15/2024] [Accepted: 04/30/2024] [Indexed: 05/07/2024]
Abstract
Obesity has emerged as a prominent global health concern, with heat stress posing a significant challenge to both human health and animal well-being. Despite a growing interest in environmental determinants of obesity, very few studies have examined the associations between heat stress-related environmental factors and adiposity. Consequently, there exists a clear need to understand the molecular mechanisms underlying the obesogenic effects of heat stress and to formulate preventive strategies. This study focused on culturing porcine subcutaneous preadipocytes at 41.5 ℃ to induce heat stress, revealing that this stressor triggered apoptosis and fat deposition. Analysis demonstrated an upregulation in the expression of HSP70, BAX, adipogenesis-related genes (PPARγ, AP2, CEBPα and FAS), the p-AMPK/AMPK ratio and SIRT1, PGC-1α in the heat stress group compared to the control group (P < 0.05). Conversely, the expression of lipid lysis-related genes (ATGL, HSL and LPL) and Bcl-2 decreased in the heat stress group compared to the control group (P < 0.05). Furthermore, subsequent activator and/or inhibitor experiments validated that heat stress modulated HSP70 and AMPK signalling pathways to enhance lipogenesis and inhibit lipolysis in porcine subcutaneous preadipocytes. Importantly, this study reveals, for the first time, that EGCG mitigates heat-stress-induced fat deposition by targeting HSP70 through the activation of AMPK-SIRT1-PGC-1α in porcine subcutaneous preadipocytes. These findings elucidate the molecular mechanisms contributing to heat stress-induced obesity and provide a foundation for the potential clinical utilisation of EGCG as a preventive measure against both heat stress and obesity.
Collapse
Affiliation(s)
- Sanbao Zhang
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning 530004, Guangxi, China
| | - Hongyue Xie
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China
| | - Peng Pan
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China
| | - Qian Wang
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning 530004, Guangxi, China
| | - Bao Yang
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning 530004, Guangxi, China
| | - Yin Li
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning 530004, Guangxi, China
| | - Yangyang Wei
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning 530004, Guangxi, China
| | - Yanjie Sun
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning 530004, Guangxi, China
| | - Yirong Wei
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning 530004, Guangxi, China
| | - Qinyang Jiang
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning 530004, Guangxi, China.
| | - Yanna Huang
- College of Animal Science and Technology, Guangxi University, Nanning Guangxi 530004, China; Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, Nanning 530004, Guangxi, China.
| |
Collapse
|
2
|
Zhang N, Meng X, Jiang H, Ge H, Qian K, Zheng Y, Park Y, Wang J. Restoration of energy homeostasis under oxidative stress: Duo synergistic AMPK pathways regulating arginine kinases. PLoS Genet 2023; 19:e1010843. [PMID: 37535699 PMCID: PMC10427004 DOI: 10.1371/journal.pgen.1010843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 08/15/2023] [Accepted: 06/26/2023] [Indexed: 08/05/2023] Open
Abstract
Rapid depletion of cellular ATP can occur by oxidative stress induced by reactive oxygen species (ROS). Maintaining energy homeostasis requires the key molecular components AMP-activated protein kinase (AMPK) and arginine kinase (AK), an invertebrate orthologue of the mammalian creatine kinase (CK). Here, we deciphered two independent and synergistic pathways of AMPK acting on AK by using the beetle Tribolium castaneum as a model system. First, AMPK acts on transcriptional factor forkhead box O (FOXO) leading to phosphorylation and nuclear translocation of the FOXO. The phospho-FOXO directly promotes the expression of AK upon oxidative stress. Concomitantly, AMPK directly phosphorylates the AK to switch the direction of enzymatic catalysis for rapid production of ATP from the phosphoarginine-arginine pool. Further in vitro assays revealed that Sf9 cells expressing phospho-deficient AK mutants displayed the lower ATP/ADP ratio and cell viability under paraquat-induced oxidative stress conditions when compared with Sf9 cells expressing wild-type AKs. Additionally, the AMPK-FOXO-CK pathway is also involved in the restoration of ATP homeostasis under oxidative stress in mammalian HEK293 cells. Overall, we provide evidence that two distinct AMPK-AK pathways, transcriptional and post-translational regulations, are coherent responders to acute oxidative stresses and distinguished from classical AMPK-mediated long-term metabolic adaptations to energy challenge.
Collapse
Affiliation(s)
- Nan Zhang
- College of Plant Protection, Yangzhou University, Yangzhou, China
- Jiangsu Lixiahe Institute of Agricultural Sciences, Yangzhou, China
| | - Xiangkun Meng
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Heng Jiang
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Huichen Ge
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Kun Qian
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Yang Zheng
- College of Plant Protection, Yangzhou University, Yangzhou, China
| | - Yoonseong Park
- Department of Entomology, Kansas State University, Manhattan, Kansas, United States of America
| | - Jianjun Wang
- College of Plant Protection, Yangzhou University, Yangzhou, China
| |
Collapse
|
3
|
Jiang H, Meng X, Zhang N, Ge H, Wei J, Qian K, Zheng Y, Park Y, Reddy Palli S, Wang J. The pleiotropic AMPK-CncC signaling pathway regulates the trade-off between detoxification and reproduction. Proc Natl Acad Sci U S A 2023; 120:e2214038120. [PMID: 36853946 PMCID: PMC10013871 DOI: 10.1073/pnas.2214038120] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 01/04/2023] [Indexed: 03/01/2023] Open
Abstract
The association of decreased fecundity with insecticide resistance and the negative sublethal effects of insecticides on insect reproduction indicates the typical trade-off between two highly energy-demanding processes, detoxification and reproduction. However, the underlying mechanisms are poorly understood. The energy sensor adenosine monophosphate-activated protein kinase (AMPK) and the transcription factor Cap "n" collar isoform C (CncC) are important regulators of energy metabolism and xenobiotic response, respectively. In this study, using the beetle Tribolium castaneum as a model organism, we found that deltamethrin-induced oxidative stress activated AMPK, which promoted the nuclear translocation of CncC through its phosphorylation. The CncC not only acts as a transcription activator of cytochrome P450 genes but also regulates the expression of genes coding for ecdysteroid biosynthesis and juvenile hormone (JH) degradation enzymes, resulting in increased ecdysteroid levels as well as decreased JH titer and vitellogenin (Vg) gene expression. These data show that in response to xenobiotic stress, the pleiotropic AMPK-CncC signaling pathway mediates the trade-off between detoxification and reproduction by up-regulating detoxification genes and disturbing hormonal homeostasis.
Collapse
Affiliation(s)
- Heng Jiang
- College of Plant Protection, Yangzhou University, Yangzhou225009, China
| | - Xiangkun Meng
- College of Plant Protection, Yangzhou University, Yangzhou225009, China
| | - Nan Zhang
- College of Plant Protection, Yangzhou University, Yangzhou225009, China
| | - Huichen Ge
- College of Plant Protection, Yangzhou University, Yangzhou225009, China
| | - Jiaping Wei
- College of Plant Protection, Yangzhou University, Yangzhou225009, China
| | - Kun Qian
- College of Plant Protection, Yangzhou University, Yangzhou225009, China
| | - Yang Zheng
- College of Plant Protection, Yangzhou University, Yangzhou225009, China
| | - Yoonseong Park
- Department of Entomology, Kansas State University, Manhattan, KS66506
| | - Subba Reddy Palli
- Department of Entomology, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY40546
| | - Jianjun Wang
- College of Plant Protection, Yangzhou University, Yangzhou225009, China
| |
Collapse
|
4
|
Ji C, Zhang N, Jiang H, Meng X, Ge H, Yang X, Xu X, Qian K, Park Y, Zheng Y, Wang J. 20-hydroxyecdysone regulates expression of methioninesulfoxide reductases through transcription factor FOXO in the red flour beetle, Tribolium castaneum. INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY 2021; 131:103546. [PMID: 33548484 DOI: 10.1016/j.ibmb.2021.103546] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 01/24/2021] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
The oxidation of methionine (Met) by reactive oxygen species (ROS) causes detrimental effects on the protein functions. Methionine sulfoxide reductase (Msr) is the secondary antioxidant enzyme involved in protein repair, and is divided into two distinct classes, MsrA and MsrB, although the mechanisms underlying the transcriptional regulation of Msrs remain largely unknown. In this study, the full-length cDNAs encoding MsrA and three alternatively spliced isoforms of MsrB were isolated from the red flour beetle, Tribolium castaneum. Exposure of female adults to oxidative, heat and cold stresses induced expressions of both MsrA and MsrB. RNAi-mediated knockdown of MsrA and MsrB resulted in increased sensitivity of T. castaneum to paraquat-induced oxidative stress. Treatment with 20-hydroxyecdysone (20E) increased expression levels of both MsrA and MsrB. Knockdown of transcription factor forkhead box O (FOXO) decreased both MsrA and MsrB mRNA levels and abolished the induction of MsrA and MsrB by paraquat. Luciferase reporter assays revealed that FOXO directly activates the promoters of both MsrA and MsrB. Moreover, paraquat treatment induced expression of two ecdysone biosynthesis genes, Shade and Phantom, 20E upregulated exoression of FOXO, promoted FOXO nuclear translocation,and knockdown of FOXO abolished induction of MsrA and MsrB expression by 20E, suggesting that regulation of MsrA and MsrB by 20E was mediated by FOXO. Overall, these results provide important insights into the transcriptional regulation of insect Msrs.
Collapse
Affiliation(s)
- Caihong Ji
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China; School of Horticulture and Landscape, Yangzhou Polytechnic College, Yangzhou, 225009, China
| | - Nan Zhang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Heng Jiang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Xiangkun Meng
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Huichen Ge
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Xuemei Yang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Xin Xu
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Kun Qian
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Yoonseong Park
- Department of Entomology, Kansas State University, Manhattan, KS, USA
| | - Yang Zheng
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China.
| | - Jianjun Wang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China; Joint International Research Laboratory of Agriculture AndAgri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
| |
Collapse
|
5
|
Feng JH, Sim SM, Park JS, Hong JS, Suh H. Modulation of corticosterone and changes of signal molecules in the HPA axis after cold water swimming stress. Anim Cells Syst (Seoul) 2021; 25:37-45. [PMID: 33717415 PMCID: PMC7935129 DOI: 10.1080/19768354.2021.1890211] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
In the present study, we examined the effect of cold-water swimming stress (CWSS) on plasma corticosterone levels. Mice were exposed to stress in 4°C for 3 mins. Plasma corticosterone (CORT) level was measured at 0, 15, and 30 min after stress stimulation. The plasma CORT level was gradually increased up to 30 min. Then we further examined the changes of several signaling molecules expression levels, such as p-ERK, p-JNK, p-P38, p-AMPKα1, p-AMPKα2, and p-mTOR, in the HPA axis. We observed that those signaling molecules were altered after stress in the HPA axis. p-ERK, p-JNK, p-P38, and p-mTOR proteins expression were reduced by CWSS in the HPA axis. However, the phosphorylation of AMPKα1 and AMPKα2 were activated after CWSS in the HPA axis. Our results suggest that the upregulation of plasma CORT level induced by CWSS may be modulated by the those signaling molecules.
Collapse
Affiliation(s)
- Jing Hui Feng
- Department of Pharmacology and Institute of Natural Medicine, College of Medicine, Hallym University, Chun-Cheon, South Korea
| | - Su Min Sim
- Department of Pharmacology and Institute of Natural Medicine, College of Medicine, Hallym University, Chun-Cheon, South Korea
| | - Jung Seok Park
- Department of Physical Education, Hallym University, Chun-Cheon, South Korea
| | - Jae Seung Hong
- Department of Physical Education, Hallym University, Chun-Cheon, South Korea
| | - HongWon Suh
- Department of Pharmacology and Institute of Natural Medicine, College of Medicine, Hallym University, Chun-Cheon, South Korea
| |
Collapse
|
6
|
Jiang H, Zhang N, Ji C, Meng X, Qian K, Zheng Y, Wang J. Metabolic and transcriptome responses of RNAi-mediated AMPKα knockdown in Tribolium castaneum. BMC Genomics 2020; 21:655. [PMID: 32967608 PMCID: PMC7510082 DOI: 10.1186/s12864-020-07070-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 09/14/2020] [Indexed: 12/27/2022] Open
Abstract
Background The AMP-activated protein kinase (AMPK) is an intracellular fuel sensor for lipid and glucose metabolism. In addition to the short-term regulation of metabolic enzymes by phosphorylation, AMPK may also exert long-term effects on the transcription of downstream genes through the regulation of transcription factors and coactivators. In this study, RNA interference (RNAi) was conducted to investigate the effects of knockdown of TcAMPKα on lipid and carbohydrate metabolism in the red flour beetle, Tribolium castaneum, and the transcriptome profiles of dsTcAMPKα-injected and dsEGFP-injected beetles under normal conditions were compared by RNA-sequencing. Results RNAi-mediated suppression of TcAMPKα increased whole-body triglyceride (TG) level and the ratio between glucose and trehalose, as was confirmed by in vivo treatment with the AMPK-activating compound, 5-Aminoimidazole-4-carboxamide1-β-D-ribofuranoside (AICAR). A total of 1184 differentially expressed genes (DEGs) were identified between dsTcAMPKα-injected and dsEGFP-injected beetles. These include genes involved in lipid and carbohydrate metabolism as well as insulin/insulin-like growth factor signaling (IIS). Real-time quantitative polymerase chain reaction analysis confirmed the differential expression of selected genes. Interestingly, metabolism-related transcription factors such as sterol regulatory element-binding protein 1 (SREBP1) and carbohydrate response element-binding protein (ChREBP) were also significantly upregulated in dsTcAMPKα-injected beetles. Conclusions AMPK plays a critical role in the regulation of beetle metabolism. The findings of DEGs involved in lipid and carbohydrate metabolism provide valuable insight into the role of AMPK signaling in the transcriptional regulation of insect metabolism.
Collapse
Affiliation(s)
- Heng Jiang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Nan Zhang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Caihong Ji
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Xiangkun Meng
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Kun Qian
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Yang Zheng
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China
| | - Jianjun Wang
- College of Horticulture and Plant Protection, Yangzhou University, Yangzhou, 225009, China. .,Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education, Yangzhou University, Yangzhou, 225009, China.
| |
Collapse
|