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Yang S, Zhao Y, Qin X, Ding C, Chen Y, Tang Z, Huang Y, Reiter RJ, Yuan S, Yuan M. New insights into the role of melatonin in photosynthesis. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:5918-5927. [PMID: 35665805 DOI: 10.1093/jxb/erac230] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 06/03/2022] [Indexed: 05/27/2023]
Abstract
There are numerous studies on enhancing plant resistance to stress using melatonin, but few studies about its effect on photosynthesis. Herein, we summarized the role of melatonin in photosynthesis. Melatonin regulates chlorophyll synthesis and degradation through the transcription of related genes and hormone signals. It protects photosynthetic proteins and maintains the photosynthetic process through improving the transcription of photosystem genes, activating the antioxidant system, and promoting the xanthophyll cycle. Melatonin potentially regulates plant stomatal movement through CAND2/PMTR1. Finally, it controls the photosynthetic carbon cycle by regulating the metabolism of sugar, the gluconeogenesis pathway, and the degradation and transport of transient starch.
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Affiliation(s)
- Sijia Yang
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Yuqing Zhao
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Xiaolong Qin
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Chunbang Ding
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Yanger Chen
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Zizhong Tang
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Yan Huang
- College of Life Science, Sichuan Agricultural University, Ya'an, China
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health Science Center, San Antonio, TX, USA
| | - Shu Yuan
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Ming Yuan
- College of Life Science, Sichuan Agricultural University, Ya'an, China
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Wang W, Shi B, Cong R, Hao M, Peng Y, Yang H, Song J, Feng D, Zhang N, Li D. RING-finger E3 ligases regulatory network in PI3K/AKT-mediated glucose metabolism. Cell Death Dis 2022; 8:372. [PMID: 36002460 PMCID: PMC9402544 DOI: 10.1038/s41420-022-01162-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 08/05/2022] [Accepted: 08/09/2022] [Indexed: 12/21/2022]
Abstract
The phosphatidylinositol 3-kinase (PI3K)/AKT signaling pathway plays an essential role in glucose metabolism, promoting glycolysis and resisting gluconeogenesis. PI3K/AKT signaling can directly alter glucose metabolism by phosphorylating several metabolic enzymes or regulators of nutrient transport. It can indirectly promote sustained aerobic glycolysis by increasing glucose transporters and glycolytic enzymes, which are mediated by downstream transcription factors. E3 ubiquitin ligase RING-finger proteins are mediators of protein post-translational modifications and include the cullin-RING ligase complexes, the tumor necrosis factor receptor-associated family, the tripartite motif family and etc. Some members of the RING family play critical roles in regulating cell signaling and are involved in the development and progression of various metabolic diseases, such as cancer, diabetes, and dyslipidemia. And with the progression of modern research, as a negative or active regulator, the RING-finger adaptor has been found to play an indispensable role in PI3K/AKT signaling. However, no reviews have comprehensively clarified the role of RING-finger E3 ligases in PI3K/AKT-mediated glucose metabolism. Therefore, in this review, we focus on the regulation and function of RING ligases in PI3K/AKT-mediated glucose metabolism to establish new insights into the prevention and treatment of metabolic diseases.
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Affiliation(s)
- Wenke Wang
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bei Shi
- Department of Physiology, School of Life Sciences, China Medical University, Shenyang, China
| | - Ruiting Cong
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Mingjun Hao
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuanyuan Peng
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Hongyue Yang
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jiahui Song
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Di Feng
- Education Center for Clinical Skill Practice, China Medical University, Shenyang, China
| | - Naijin Zhang
- Department of Cardiology, the First Hospital of China Medical University, Shenyang, Liaoning, China.
| | - Da Li
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang, China.
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Du K, Murakami S, Sun Y, Kilpatrick CL, Luscher B. DHHC7 Palmitoylates Glucose Transporter 4 (Glut4) and Regulates Glut4 Membrane Translocation. J Biol Chem 2017; 292:2979-2991. [PMID: 28057756 DOI: 10.1074/jbc.m116.747139] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 12/30/2016] [Indexed: 11/06/2022] Open
Abstract
Insulin-dependent translocation of glucose transporter 4 (Glut4) to the plasma membrane plays a key role in the dynamic regulation of glucose homeostasis. We recently showed that this process is critically dependent on palmitoylation of Glut4 at Cys-223. To gain further insights into the regulation of Glut4 palmitoylation, we set out to identify the palmitoyl acyltransferase (PAT) involved. Here we report that among 23 mammalian DHHC proteins, DHHC7 is the major Glut4 PAT, based on evidence that ectopic expression of DHHC7 increased Glut4 palmitoylation, whereas DHHC7 knockdown in 3T3-L1 adipocytes and DHHC7 KO in adipose tissue and muscle decreased Glut4 palmitoylation. Moreover, inactivation of DHHC7 suppressed insulin-dependent Glut4 membrane translocation in both 3T3-L1 adipocytes and primary adipocytes. Finally, DHHC7 KO mice developed hyperglycemia and glucose intolerance, thereby confirming that DHHC7 represents the principal PAT for Glut4 and that this mechanism is essential for insulin-regulated glucose homeostasis.
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Affiliation(s)
- Keyong Du
- From the Molecular Oncology Research Institute, Tufts Medical Center, Boston, Massachusetts 02111 and
| | | | - Yingmin Sun
- From the Molecular Oncology Research Institute, Tufts Medical Center, Boston, Massachusetts 02111 and
| | - Casey L Kilpatrick
- Department of Biochemistry and Molecular Biology.,Department of Biology, and.,Center for Molecular Investigation of Neurological Disorders, Pennsylvania State University, University Park, Pennsylvania 16802
| | - Bernhard Luscher
- Department of Biochemistry and Molecular Biology.,Department of Biology, and.,Center for Molecular Investigation of Neurological Disorders, Pennsylvania State University, University Park, Pennsylvania 16802
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Sanchez-Barcelo EJ, Mediavilla MD, Vriend J, Reiter RJ. Constitutive photomorphogenesis protein 1 (COP1) and COP9 signalosome, evolutionarily conserved photomorphogenic proteins as possible targets of melatonin. J Pineal Res 2016; 61:41-51. [PMID: 27121162 DOI: 10.1111/jpi.12340] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 04/26/2016] [Indexed: 12/18/2022]
Abstract
The ubiquitin proteasome system has been proposed as a possible mechanism involved in the multiple actions of melatonin. COP1 (constitutive photomorphogenesis protein 1), a RING finger-type ubiquitin E3 ligase formerly identified in Arabidopsis, is a central switch for the transition from plant growth underground in darkness (etiolation) to growth under light exposure (photomorphogenesis). In darkness, COP1 binds to photomorphogenic transcription factors driving its degradation via the 26S proteasome; blue light, detected by cryptochromes, and red and far-red light detected by phytochromes, negatively regulate COP1. Homologues of plant COP1 containing all the structural features present in Arabidopsis as well as E3 ubiquitin ligase activity have been identified in mice and humans. Substrates for mammalian (m) COP1 include p53, AP-1 and c-Jun, p27(Kip1) , ETV1, MVP, 14-3-3σ, C/EBPα, MTA1, PEA3, ACC, TORC2 and FOXO1. This mCOP1 target suggests functions related to tumorigenesis, gluconeogenesis, and lipid metabolism. The role of mCOP1 in tumorigenesis (either as a tumor promoter or tumor suppressor), as well as in glucose metabolism (inhibition of gluconeogenesis) and lipid metabolism (inhibition of fatty acid synthesis), has been previously demonstrated. COP1, along with numerous other ubiquitin ligases, is regulated by the COP9 signalosome; this protein complex is associated with the oxidative stress sensor Keap1 and the deubiquitinase USP15. The objective of this review was to provide new information on the possible role of COP1 and COP9 as melatonin targets. The hypothesis is based on common functional aspects of melatonin and COP1 and COP9, including their dependence on light, regulation of the metabolism, and their control of tumor growth.
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Affiliation(s)
| | - Maria D Mediavilla
- Department of Physiology and Pharmacology, University of Cantabria, Santander, Spain
| | - Jerry Vriend
- Department of Human Anatomy and Cell Science, University of Manitoba, Winnipeg, MB, Canada
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health Science Center, San Antonio, TX, USA
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Du K, Yingmin S. ClipR-59 plays a critical role in the regulation of body glucose homeostasis. Adipocyte 2015; 4:286-94. [PMID: 26451285 DOI: 10.1080/21623945.2015.1048051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 04/24/2015] [Accepted: 04/28/2015] [Indexed: 02/06/2023] Open
Abstract
By regulating Akt membrane compartmentalization, ClipR-59 modulates adipocyte glucose transport. To elucidate the role of ClipR-59 in the regulation of whole body glucose homeostasis, we have generated adipose tissue specific transgenic mice and examined how forcing expression of ClipR-59 in adipose tissue affects body glucose homeostasis. We found that ClipR-59 adipose transgenic mice showed lower blood glucose level with increased glucose tolerance and enhanced insulin sensitivity. Moreover, ClipR-59 adipose transgenic mice were lean with reduced fat mass and against diet induced obesity. Finally, we examined the potential impact of ClipR-59 on adipose endocrine function and found that ClipR-59 expression enhanced adiponectin secretion in both 3T3-L1 adipocytes and adipose tissue, accompanied with increased circulating adiponectin and enhanced AMPKα phosphorylation at Thr172 in adipose tissue and skeletal muscle. Overall, these studies demonstrate that ClipR-59 is likely an important regulator of body glucose homeostasis and adipocyte function.
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Gan Y, Zhang Y, Buckels A, Paterson AJ, Jiang J, Clemens TL, Zhang ZY, Du K, Chang Y, Frank SJ. IGF-1R modulation of acute GH-induced STAT5 signaling: role of protein tyrosine phosphatase activity. Mol Endocrinol 2013; 27:1969-79. [PMID: 24030252 DOI: 10.1210/me.2013-1178] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
GH is a potent anabolic and metabolic factor that binds its cell surface receptor (GHR), activating the GHR-associated tyrosine kinase, Janus kinase 2, which phosphorylates and activates the latent transcription factor, signal transducer and activator of transcription 5 (STAT5). Some GH actions are mediated by the elaboration of IGF-1, which exerts effects by binding and activating the heterotetrameric tyrosine kinase growth factor receptor, IGF-1R. In addition to this GH-GHR-IGF-1-IGF-1R scheme, we have demonstrated in primary osteoblasts and in islet β-cells that then deletion or silencing of IGF-1R results in diminished GH-induced STAT5 phosphorylation, suggesting that the presence of IGF-1R may facilitate GH signaling. In this study, we explore potential roles for protein tyrosine phosphatase activity in modulating GH-induced signaling, comparing conditions in which IGF-1R is present or diminished. We confirm that in mouse primary osteoblasts harboring loxP sites flanking the IGF-1R gene, infection with an adenovirus that expresses the Cre recombinase results in IGF-1R deletion and diminished acute GH-induced STAT5 phosphorylation. Furthermore, we present a new model of IGF-1R silencing, in which expression of short hairpin RNA directed at IGF-1R greatly reduces IGF-1R abundance in LNCaP human prostate cancer cells. In both models, treatment with a chemical inhibitor of protein tyrosine phosphatase-1B (PTP-1B), but not one of src homology region 2 domain-containing phosphotase-1 (SHP-1) and SHP-2, reverses the loss of GH-induced STAT5 phosphorylation in cells lacking IGF-1R but has no effect in cells with intact IGF-1R. Furthermore, expression of either a dominant-negative PTP-1B or the PTP-1B-interacting inhibitory protein, constitutive photomorphogenesis 1, also rescues acute GH-induced STAT5 signaling in IGF-1R-deficient cells but has no effect in IGF-1R replete cells. By expressing a substrate-trapping mutant PTP-1B, we demonstrate that tyrosine phosphorylated Janus kinase-2 is a PTP-1B substrate only in cells lacking IGF-1R. Collectively, our data suggest that IGF-1R positively regulates acute GH signaling by preventing access of PTP-1B activity to Janus kinase 2 and thereby preventing PTP-1B-mediated suppression of GH-induced STAT5 activation.
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Affiliation(s)
- Yujun Gan
- MD, University of Alabama at Birmingham, 1530 Third Avenue South, BDB 720, Birmingham, Alabama 35294-0012.
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