1
|
Ding Z, Ge W, Xu X, Xu X, Sun Q, Xu X, Zhang J. A crucial role of adenosine deaminase in regulating gluconeogenesis in mice. J Biol Chem 2024; 300:107425. [PMID: 38823639 PMCID: PMC11231709 DOI: 10.1016/j.jbc.2024.107425] [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: 03/20/2024] [Revised: 05/08/2024] [Accepted: 05/21/2024] [Indexed: 06/03/2024] Open
Abstract
Adenosine deaminase (ADA) catalyzes the irreversible deamination of adenosine (ADO) to inosine and regulates ADO concentration. ADA ubiquitously expresses in various tissues to mediate ADO-receptor signaling. A significant increase in plasma ADA activity has been shown to be associated with the pathogenesis of type 2 diabetes mellitus. Here, we show that elevated plasma ADA activity is a compensated response to high level of ADO in type 2 diabetes mellitus and plays an essential role in the regulation of glucose homeostasis. Supplementing with more ADA, instead of inhibiting ADA, can reduce ADO levels and decrease hepatic gluconeogenesis. ADA restores a euglycemic state and recovers functional islets in db/db and high-fat streptozotocin diabetic mice. Mechanistically, ADA catabolizes ADO and increases Akt and FoxO1 phosphorylation independent of insulin action. ADA lowers blood glucose at a slower rate and longer duration compared to insulin, delaying or blocking the incidence of insulinogenic hypoglycemia shock. Finally, ADA suppresses gluconeogenesis in fasted mice and insulin-deficient diabetic mice, indicating the ADA regulating gluconeogenesis is a universal biological mechanism. Overall, these results suggest that ADA is expected to be a new therapeutic target for diabetes.
Collapse
Affiliation(s)
- Zhao Ding
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Wenhao Ge
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Xiaogang Xu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Xiaodong Xu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Qi Sun
- Department of Physiology, Bengbu Medical University, Bengbu, China
| | - Xi Xu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China.
| |
Collapse
|
2
|
Han L, Wang G, Zhou S, Situ C, He Z, Li Y, Qiu Y, Huang Y, Xu A, Ong MTY, Wang H, Zhang J, Wu Z. Muscle satellite cells are impaired in type 2 diabetic mice by elevated extracellular adenosine. Cell Rep 2022; 39:110884. [PMID: 35649375 DOI: 10.1016/j.celrep.2022.110884] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 04/12/2022] [Accepted: 05/05/2022] [Indexed: 12/25/2022] Open
Abstract
Muscle regeneration is known to be defective under diabetic conditions. However, the underlying mechanisms remain less clear. Adult quiescent muscle satellite cells (MuSCs) from leptin-receptor-deficient (i.e., db/db) diabetic mice are defective in early activation in vivo, but not in culture, suggesting the involvement of pathogenic niche factors. Elevated extracellular adenosine (eAdo) and AMP (eAMP) are detected under diabetic conditions. eAdo and eAMP potently inhibit cell cycle re-entry of quiescent MuSCs and injury-induced muscle regeneration. Mechanistically, eAdo and eAMP engage the equilibrative Ado transporters (ENTs)-Ado kinase (ADK)-AMPK signaling axis in MuSCs to inhibit the mTORC1-dependent cell growth checkpoint. eAdo and eAMP also inhibit early activation of quiescent fibroadipogenic progenitors and human MuSCs by the same mechanism. Treatment of db/db diabetic mice with an ADK inhibitor partially rescues the activation defects of MuSCs in vivo. Thus, both ADK and ENTs represent potential therapeutic targets for restoring the regenerative functions of tissue stem cells in patients with diabetes.
Collapse
Affiliation(s)
- Lifang Han
- Division of Life Science, the State Key Laboratory on Molecular Neuroscience, the Hong Kong University of Science & Technology, Hong Kong, China
| | - Gang Wang
- Division of Life Science, the State Key Laboratory on Molecular Neuroscience, the Hong Kong University of Science & Technology, Hong Kong, China
| | - Shaopu Zhou
- Division of Life Science, the State Key Laboratory on Molecular Neuroscience, the Hong Kong University of Science & Technology, Hong Kong, China
| | - Chenghao Situ
- Division of Life Science, the State Key Laboratory on Molecular Neuroscience, the Hong Kong University of Science & Technology, Hong Kong, China
| | - Zhiming He
- Department of Chemical Pathology, the Chinese University of Hong Kong, Hong Kong, China
| | - Yuying Li
- Li Ka Shing Institute of Health Sciences, Department of Orthopaedics and Traumatology, the Chinese University of Hong Kong, Hong Kong, China
| | - Yudan Qiu
- Division of Life Science, the State Key Laboratory on Molecular Neuroscience, the Hong Kong University of Science & Technology, Hong Kong, China
| | - Yu Huang
- Department of Biomedical Sciences, the City University of Hong Kong, Hong Kong, China
| | - Aimin Xu
- Department of Medicine, the University of Hong Kong, Hong Kong, China
| | - Michael Tim Yun Ong
- Department of Orthopaedics and Traumatology, the Chinese University of Hong Kong, the Prince of Wales Hospital, Hong Kong, China
| | - Huating Wang
- Li Ka Shing Institute of Health Sciences, Department of Orthopaedics and Traumatology, the Chinese University of Hong Kong, Hong Kong, China
| | - Jianfa Zhang
- Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Zhenguo Wu
- Division of Life Science, the State Key Laboratory on Molecular Neuroscience, the Hong Kong University of Science & Technology, Hong Kong, China; Greater Bay Biomedical Innocenter, Shenzhen Bay Laboratory, Shenzhen, 518055, China.
| |
Collapse
|
3
|
Ge W, Zhao Y, Yang Y, Ding Z, Xu X, Weng D, Wang S, Cheng R, Zhang J. An insulin-independent mechanism for transcriptional regulation of Foxo1 in type 2 diabetic mice. J Biol Chem 2021; 297:100846. [PMID: 34058194 PMCID: PMC8233149 DOI: 10.1016/j.jbc.2021.100846] [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] [Received: 01/27/2021] [Revised: 05/08/2021] [Accepted: 05/26/2021] [Indexed: 11/29/2022] Open
Abstract
Hepatic gluconeogenesis is the major contributor to the hyperglycemia observed in both patients and animals with type 2 diabetes. The transcription factor FOXO1 plays a dominant role in stimulating hepatic gluconeogenesis. FOXO1 is mainly regulated by insulin under physiological conditions, but liver-specific disruption of Foxo1 transcription restores normal gluconeogenesis in mice in which insulin signaling has been blocked, suggesting that additional regulatory mechanisms exist. Understanding the transcriptional regulation of Foxo1 may be conducive to the development of insulin-independent strategies for the control of hepatic gluconeogenesis. Here, we found that elevated plasma levels of adenine nucleotide in type 2 diabetes are the major regulators of Foxo1 transcription. We treated lean mice with 5'-AMP and examined their transcriptional profiles using RNA-seq. KEGG analysis revealed that the 5'-AMP treatment led to shifted profiles that were similar to db/db mice. Many of the upregulated genes were in pathways associated with the pathology of type 2 diabetes including Foxo1 signaling. As observed in diabetic db/db mice, lean mice treated with 5'-AMP displayed enhanced Foxo1 transcription, involving an increase in cellular adenosine levels and a decrease in the S-adenosylmethionine to S-adenosylhomocysteine ratio. This reduced methylation potential resulted in declining histone H3K9 methylation in the promoters of Foxo1, G6Pc, and Pepck. In mouse livers and cultured cells, 5'-AMP induced expression of more FOXO1 protein, which was found to be localized in the nucleus, where it could promote gluconeogenesis. Our results revealed that adenine nucleotide-driven Foxo1 transcription is crucial for excessive glucose production in type 2 diabetic mice.
Collapse
Affiliation(s)
- Wenhao Ge
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Yang Zhao
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Yunxia Yang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Zhao Ding
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Xi Xu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Dan Weng
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Shiming Wang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China
| | - Rui Cheng
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China.
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, Nanjing, China.
| |
Collapse
|
4
|
Yang X, Zhao Y, Sun Q, Yang Y, Gao Y, Ge W, Liu J, Xu X, Zhang J. Adenosine accumulation causes metabolic disorders in testes and associates with lower testosterone level in obese mice. Mol Reprod Dev 2020; 87:241-250. [PMID: 32026564 DOI: 10.1002/mrd.23321] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 01/05/2020] [Indexed: 12/27/2022]
Abstract
Overweight and obese men face numerous health problems, including type 2 diabetes, subfertility, and even infertility. However, few studies have focused on the effects of nutritional status and obesity-related regulatory signals on fertility deficiency. Our previous observations have shown that the elevation of plasma 5'-adenosine monophosphate (5'-AMP) and the accumulation of adenosine in liver and muscle of obese diabetic db/db mice are related to insulin resistance. Here, we found that adenosine accumulation in testis is a common marker of both genetic obesity and high-fat-diet induced obese mice. An messenger RNA sequencing analysis indicated that 78 upregulated genes and 155 downregulated genes in the testis of 5'-AMP-treated mice overlapped with the same genes in the testis of ob/ob mice, and these genes belonged to the clusters of steroid metabolic process and regulation of hormone levels, respectively. Serum testosterone was reduced in ob/ob and 5'-AMP-treated mice. Metabolomic analysis based on 1 H nuclear magnetic resonance showed that the testicular metabolic profiles of ob/ob mice were similar to those of 5'-AMP treated mice. Exogenous 5'-AMP inhibited the phosphorylation of AKT and mammalian target of rapamycin signal transduction and reduced the proliferating cell nuclear antigen expressions in testes. Our results suggest that the accumulation of adenosine causes metabolic disorders in testes and associates lower testosterone level in obese mice.
Collapse
Affiliation(s)
- Xiao Yang
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Yang Zhao
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Qi Sun
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Yunxia Yang
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Yan Gao
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Wenhao Ge
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Junhao Liu
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Xi Xu
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science and Technology, Nanjing, China
| |
Collapse
|
5
|
Yang X, Zhao Y, Sun Q, Yang Y, Gao Y, Ge W, Liu J, Xu X, Weng D, Wang S, Zhang J. Adenine nucleotide-mediated regulation of hepatic PTP1B activity in mouse models of type 2 diabetes. Diabetologia 2019; 62:2106-2117. [PMID: 31410531 DOI: 10.1007/s00125-019-04971-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/24/2019] [Indexed: 12/18/2022]
Abstract
AIMS/HYPOTHESIS Plasma 5'-AMP (pAMP) is elevated in mouse models of type 2 diabetes. However, the metabolic regulatory role of adenine nucleotides in type 2 diabetes remains unclear. METHODS Adenine nucleotides and their metabolites in plasma and liver were examined by HPLC. 1H NMR-based metabolomics analysis was performed to explore the changes of metabolites in mouse models of type 2 diabetes. Na+/K+ ATPase and Na+/H+ exchanger activity were measured in response to adenine nucleotide metabolites. Human recombinant protein tyrosine phosphatase 1B (PTP1B) was used for enzyme kinetic assays. Protein binding assays were performed with microscale thermophoresis. The intracellular pH of hepatocyte AML12 cell lines was measured using the BCECF-AM method. We also analysed pAMP levels in participants with type 2 diabetes. RESULTS Elevation of pAMP was a universal phenomenon in all mouse models of type 2 diabetes including db/db vs lean mice (13.9 ± 2.3 μmol/l vs 3.7 ± 0.9 μmol/l; p < 0.01), ob/ob vs lean mice (9.1 ± 2.0 μmol/l vs 3.9 ± 1.2 μmol/l; p < 0.01) and high-fat diet/streptozotocin-induced vs wild-type mice (6.6 ± 1.5 μmol/l vs 4.1 ± 0.9 μmol/l; p < 0.05); this elevation was required for the occurrence of hyperglycaemia in obese mice. 1H NMR-based metabolomics study following HPLC analysis revealed that the metabolite profile in wild-type mice treated with 5'-AMP was similar to that in db/db diabetic mice, especially the accumulation of a large quantity of ATP and its metabolites. The glucose-lowering drug metformin reduced the severity of hyperglycaemia both in 5'-AMP-induced wild-type mice and db/db mice. Metformin decreased the accumulation of liver ATP but not its metabolites in these hyperglycaemic mice. ATP and metformin reciprocally change cellular pH homeostasis in liver, causing opposite shifts in liver activity of PTP1B, a key negative regulator of insulin signalling. Furthermore, pAMP levels were also elevated in individuals with type 2 diabetes (45.2 ± 22.7 nmol/l vs 3.1 ± 1.9 nmol/l; p < 0.01). CONCLUSIONS/INTERPRETATION These results reveal an emerging role for adenine nucleotide in the regulation of hyperglycaemia and provide a potential therapeutic target in obesity and type 2 diabetes.
Collapse
Affiliation(s)
- Xiao Yang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Yang Zhao
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Qi Sun
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Yunxia Yang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Yan Gao
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Wenhao Ge
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Junhao Liu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Xi Xu
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Dan Weng
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Shiming Wang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China
| | - Jianfa Zhang
- Center for Molecular Metabolism, Nanjing University of Science & Technology, 200 Xiaolingwei, Nanjing, 210094, China.
| |
Collapse
|
6
|
Zhang Y, Wang X, Wu Q, Wang H, Zhao L, Wang X, Mu M, Xie E, He X, Shao D, Shang Y, Lai Y, Ginzburg Y, Min J, Wang F. Adenine alleviates iron overload by cAMP/PKA mediated hepatic hepcidin in mice. J Cell Physiol 2018; 233:7268-7278. [PMID: 29600572 DOI: 10.1002/jcp.26559] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 02/20/2018] [Indexed: 12/21/2022]
Abstract
Hemochromatosis is prevalent and often associated with high rates of morbidity and mortality worldwide. The safe alternative iron-reducing approaches are urgently needed in order to better control iron overload. Our unbiased vitamin screen for modulators of hepcidin, a master iron regulatory hormone, identifies adenine (vitamin B4) as a potent hepcidin agonist. Adenine significantly induced hepcidin mRNA level and promoter activity activation in human cell lines, possibly through BMP/SMAD pathway. Further studies in mice validated the effect of adenine on hepcidin upregulation. Consistently, adenine dietary supplement in mice led to an increase of hepatic hepcidin expression compared with normal diet-fed mice via BMP/SMAD pathway. Notably, adenine-rich diet significantly ameliorated iron overload accompanied by the enhanced hepcidin expression in both high iron-fed mice and in Hfe-/- mice, a murine model of hereditary hemochromatosis. To further validate this finding, we selected pharmacological inhibitors against BMP (LDN193189). We found LDN193189 strongly blocked the hepcidin induction by adenine. Moreover, we uncovered an essential role of cAMP/PKA-dependent axis in triggering adenine-induced hepcidin expression in primary hepatocytes by using 8 br cAMP, a cAMP analog, and H89, a potent inhibitor for PKA signaling. These findings suggest a potential therapeutic role of adenine for hereditary hemochromatosis.
Collapse
Affiliation(s)
- Yingqi Zhang
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xudong Wang
- The First Affiliated Hospital, Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Qian Wu
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Hao Wang
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China.,Precision Nutrition Innovation Institute, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Lu Zhao
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xinhui Wang
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Mingdao Mu
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Enjun Xie
- The First Affiliated Hospital, Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xuyan He
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Dandan Shao
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yanna Shang
- Precision Nutrition Innovation Institute, College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yongrong Lai
- Department of Hematology, First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Yelena Ginzburg
- Division of Hematology and Medical Oncology/Tisch Cancer Center, Icahn School of Medicine at Mount Sinai, New York, NewYork
| | - Junxia Min
- The First Affiliated Hospital, Institute of Translational Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Fudi Wang
- Department of Nutrition, Nutrition Discovery Innovation Center, Institute of Nutrition and Food Safety, School of Public Health, School of Medicine, Zhejiang University, Hangzhou, China.,Precision Nutrition Innovation Institute, College of Public Health, Zhengzhou University, Zhengzhou, China
| |
Collapse
|