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Zhang J, Zhang T, Chen Y, Xuan X, Zhao Y, Lu G. Spermidine mitigates ferroptosis in free fatty acid-induced AML-12 cells through the ATF4/SLC7A11/GCLM/GPX4 pathway. Biochim Biophys Acta Mol Cell Biol Lipids 2024; 1869:159560. [PMID: 39181440 DOI: 10.1016/j.bbalip.2024.159560] [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: 01/16/2024] [Revised: 08/20/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a prominent cause of chronic liver disease worldwide. Spermidine (SPD), a naturally occurring polyamine, has shown potential in alleviating the accumulation of hepatic lipids and reducing NAFLD symptoms in overweight mice. Nonetheless, the specific mechanisms through which SPD exerts its effects remain largely unknown. This study seeks to explore the protective effects of SPD on NAFLD and to clarify the underlying mechanisms. An in vitro model of NAFLD was established by inducing steatosis in AML-12 cells through the use of free fatty acids (FFAs). Our experimental results demonstrate that SPD significantly reduces NAFLD development induced by FFAs. This reduction is primarily achieved through the inhibition of cellular ferroptosis, as evidenced by decreased levels of Fe2+, malondialdehyde (MDA), and reactive oxygen species (ROS). Additionally, SPD was found to enhance cellular activity and ameliorate mitochondrial dysfunction and oxidative stress caused by FFA exposure. Further mechanistic studies have revealed that SPD upregulates the expression of solute transporter family 7a member 11 (SLC7A11), glutamate-cysteine ligase modifier subunit (GCLM), and glutathione peroxidase (GPX4). This upregulation is mediated by the activation of activating transcription factor 4 (ATF4). Knockdown experiments of ATF4 confirmed that its inhibition reverses the upregulation of SLC7A11, GCLM, and GPX4, thereby negating the protective effects of SPD. In conclusion, our findings suggest that SPD mitigates NAFLD by modulating the ATF4/SLC7A11/GCLM/GPX4 signaling pathway, resulting in the suppression of ferroptosis and the improvement of cellular health. These insights provide a novel molecular mechanism and identify potential therapeutic targets for the treatment of NAFLD.
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Affiliation(s)
- Jia Zhang
- Department of Gastroenterology, The Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450000, China; Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Tao Zhang
- Department of Gastroenterology, The Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450000, China; Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Yihang Chen
- Department of Gastroenterology, The Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450000, China; Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Xiaojie Xuan
- Department of Gastroenterology, The Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450000, China; Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Yuqian Zhao
- Department of Gastroenterology, The Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450000, China; Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450000, China
| | - Gaofeng Lu
- Department of Gastroenterology, The Second Affiliated Hospital, Zhengzhou University, Zhengzhou 450000, China; Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou 450000, China.
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2
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Tripathi M, Gauthier K, Sandireddy R, Zhou J, Guptta P, Sakthivel S, Teo WW, Naing YT, Arul K, Tikno K, Park SH, Wu Y, Wang L, Bay BH, Sun L, Giguere V, Chow PKH, Ghosh S, McDonnell DP, Yen PM, Singh BK. Esrra regulates Rplp1-mediated translation of lysosome proteins suppressed in metabolic dysfunction-associated steatohepatitis and reversed by alternate day fasting. Mol Metab 2024; 87:101997. [PMID: 39032642 PMCID: PMC11327444 DOI: 10.1016/j.molmet.2024.101997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 07/03/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024] Open
Abstract
OBJECTIVE Currently, little is known about the mechanism(s) regulating global and specific protein translation during metabolic dysfunction-associated steatohepatitis (MASH; previously known as non-alcoholic steatohepatitis, NASH). METHODS Unbiased label-free quantitative proteome, puromycin-labelling and polysome profiling were used to understand protein translation activity in vitro and in vivo. RESULTS We observed a global decrease in protein translation during lipotoxicity in human primary hepatocytes, mouse hepatic AML12 cells, and livers from a dietary mouse model of MASH. Interestingly, proteomic analysis showed that Rplp1, which regulates ribosome and translation pathways, was one of the most downregulated proteins. Moreover, decreased Esrra expression and binding to the Rplp1 promoter, diminished Rplp1 gene expression during lipotoxicity. This, in turn, reduced global protein translation and Esrra/Rplp1-dependent translation of lysosome (Lamp2, Ctsd) and autophagy (sqstm1, Map1lc3b) proteins. Of note, Esrra did not increase its binding to these gene promoters or their gene transcription, confirming its regulation of their translation during lipotoxicity. Notably, hepatic Esrra-Rplp1-dependent translation of lysosomal and autophagy proteins also was impaired in MASH patients and liver-specific Esrra knockout mice. Remarkably, alternate day fasting induced Esrra-Rplp1-dependent expression of lysosomal proteins, restored autophagy, and reduced lipotoxicity, inflammation, and fibrosis in hepatic cell culture and in vivo models of MASH. CONCLUSIONS Esrra regulation of Rplp1-mediated translation of lysosome/autolysosome proteins was downregulated during MASH. Alternate day fasting activated this novel pathway and improved MASH, suggesting that Esrra and Rplp1 may serve as therapeutic targets for MASH. Our findings also provided the first example of a nuclear hormone receptor, Esrra, to not only regulate transcription but also protein translation, via induction of Rplp1.
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Affiliation(s)
- Madhulika Tripathi
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Karine Gauthier
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Lyon 1, CNRS, Ecole Normale Supérieure de Lyon, 46 Allée d'Italie 69364 Lyon Cedex 07, France
| | - Reddemma Sandireddy
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Jin Zhou
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Priyanka Guptta
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Suganya Sakthivel
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Wei Wen Teo
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Yadanar Than Naing
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Kabilesh Arul
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Keziah Tikno
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Sung-Hee Park
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, C238A Levine Science Research Center, Durham, NC 27710, USA
| | - Yajun Wu
- Department of Anatomy, Yong Loo Lin School of Medicine, NUS 117594, Singapore
| | - Lijin Wang
- Centre for Computational Biology, Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore; Pennington Biomedical Research Center, Laboratory of Bioinformatics and Computational Biology, Baton Rouge, LA 70808, USA
| | - Boon-Huat Bay
- Department of Anatomy, Yong Loo Lin School of Medicine, NUS 117594, Singapore
| | - Lei Sun
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore
| | - Vincent Giguere
- Goodman Cancer Research Centre, McGill University, 1160 Pine Avenue West, Montreal, Québec H3A 1A3, Canada
| | - Pierce K H Chow
- Dept of Surgery, Singapore General Hospital and Dept. of Surgical Oncology, National Cancer Centre 169608, Singapore
| | - Sujoy Ghosh
- Centre for Computational Biology, Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore; Pennington Biomedical Research Center, Laboratory of Bioinformatics and Computational Biology, Baton Rouge, LA 70808, USA
| | - Donald P McDonnell
- Department of Pharmacology and Cancer Biology, Duke University School of Medicine, C238A Levine Science Research Center, Durham, NC 27710, USA
| | - Paul M Yen
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore; Duke Molecular Physiology Institute and Dept. of Medicine, Duke University School of Medicine, Durham, NC 27710, USA
| | - Brijesh K Singh
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore (NUS) Medical School, Singapore 169857, Singapore.
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3
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Sánchez MÁN, Martinez-Sanchez MA, Sierra-Cruz M, Lambertos A, Rico-Chazarra S, Oliva-Bolarín A, Román AB, Yuste JE, Martínez CM, Mika A, Frutos MD, Llamoza-Torres CJ, Córdoba-Chacón J, Ramos-Molina B. Increased hepatic putrescine levels as a new potential factor related to the progression of metabolic dysfunction-associated steatotic liver disease. J Pathol 2024; 264:101-111. [PMID: 39022853 PMCID: PMC11300153 DOI: 10.1002/path.6330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 05/05/2024] [Accepted: 06/13/2024] [Indexed: 07/20/2024]
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) is a chronic liver condition that often progresses to more advanced stages, such as metabolic dysfunction-associated steatohepatitis (MASH). MASH is characterized by inflammation and hepatocellular ballooning, in addition to hepatic steatosis. Despite the relatively high incidence of MASH in the population and its potential detrimental effects on human health, this liver disease is still not fully understood from a pathophysiological perspective. Deregulation of polyamine levels has been detected in various pathological conditions, including neurodegenerative diseases, inflammation, and cancer. However, the role of the polyamine pathway in chronic liver disorders such as MASLD has not been explored. In this study, we measured the expression of liver ornithine decarboxylase (ODC1), the rate-limiting enzyme responsible for the production of putrescine, and the hepatic levels of putrescine, in a preclinical model of MASH as well as in liver biopsies of patients with obesity undergoing bariatric surgery. Our findings reveal that expression of ODC1 and the levels of putrescine, but not spermidine nor spermine, are elevated in hepatic tissue of both diet-induced MASH mice and patients with biopsy-proven MASH compared with control mice and patients without MASH, respectively. Furthermore, we found that the levels of putrescine were positively associated with higher aspartate aminotransferase concentrations in serum and an increased SAF score (steatosis, activity, fibrosis). Additionally, in in vitro assays using human HepG2 cells, we demonstrate that elevated levels of putrescine exacerbate the cellular response to palmitic acid, leading to decreased cell viability and increased release of CK-18. Our results support an association between the expression of ODC1 and the progression of MASLD, which could have translational relevance in understanding the onset of this disease. © 2024 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
| | | | - Marta Sierra-Cruz
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Ana Lambertos
- Department of Biochemistry and Molecular Biology B and Immunology, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - Sara Rico-Chazarra
- Obesity, Diabetes and Metabolism Laboratory, Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
| | - Alba Oliva-Bolarín
- Obesity, Diabetes and Metabolism Laboratory, Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
| | - Andrés Balaguer Román
- Obesity, Diabetes and Metabolism Laboratory, Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
- Department of General and Digestive System Surgery, Virgen de la Arrixaca University Hospital, Murcia, Spain
| | - José Enrique Yuste
- Metabolomics Platform of CEBAS-CSIC, Campus Universitario de Espinardo, Murcia, Spain
| | - Carlos Manuel Martínez
- Experimental Pathology Platform, Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
| | - Adriana Mika
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Medical University of Gdansk, Gdansk, Poland
| | - María Dolores Frutos
- Department of General and Digestive System Surgery, Virgen de la Arrixaca University Hospital, Murcia, Spain
| | - Camilo J. Llamoza-Torres
- Obesity, Diabetes and Metabolism Laboratory, Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
- Division of Liver Diseases, Department of Gastroenterology and Hepatology, University Clinical Hospital Virgen de la Arrixaca, Murcia, Spain
| | - José Córdoba-Chacón
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Bruno Ramos-Molina
- Obesity, Diabetes and Metabolism Laboratory, Biomedical Research Institute of Murcia (IMIB), Murcia, Spain
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4
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Jiang X, Baig AH, Palazzo G, Del Pizzo R, Bortecen T, Groessl S, Zaal EA, Amaya Ramirez CC, Kowar A, Aviles-Huerta D, Berkers CR, Palm W, Tschaharganeh D, Krijgsveld J, Loayza-Puch F. P53-dependent hypusination of eIF5A affects mitochondrial translation and senescence immune surveillance. Nat Commun 2024; 15:7458. [PMID: 39198484 PMCID: PMC11358140 DOI: 10.1038/s41467-024-51901-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/19/2024] [Indexed: 09/01/2024] Open
Abstract
Cellular senescence is characterized by a permanent growth arrest and is associated with tissue aging and cancer. Senescent cells secrete a number of different cytokines referred to as the senescence-associated secretory phenotype (SASP), which impacts the surrounding tissue and immune response. Here, we find that senescent cells exhibit higher rates of protein synthesis compared to proliferating cells and identify eIF5A as a crucial regulator of this process. Polyamine metabolism and hypusination of eIF5A play a pivotal role in sustaining elevated levels of protein synthesis in senescent cells. Mechanistically, we identify a p53-dependent program in senescent cells that maintains hypusination levels of eIF5A. Finally, we demonstrate that functional eIF5A is required for synthesizing mitochondrial ribosomal proteins and monitoring the immune clearance of premalignant senescent cells in vivo. Our findings establish an important role of protein synthesis during cellular senescence and suggest a link between eIF5A, polyamine metabolism, and senescence immune surveillance.
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Affiliation(s)
- Xiangli Jiang
- Translational Control and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany, Heidelberg, Germany
- Department of Thoracic Oncology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Ali Hyder Baig
- Translational Control and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany, Heidelberg, Germany
| | - Giuliana Palazzo
- Translational Control and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany, Heidelberg, Germany
- Faculty of Biosciences, University of Heidelberg, Heidelberg, Germany
| | - Rossella Del Pizzo
- Translational Control and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany, Heidelberg, Germany
- Faculty of Biosciences, University of Heidelberg, Heidelberg, Germany
| | - Toman Bortecen
- Faculty of Biosciences, University of Heidelberg, Heidelberg, Germany
- Proteomics of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sven Groessl
- Faculty of Biosciences, University of Heidelberg, Heidelberg, Germany
- Division of Cell Signaling and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Esther A Zaal
- Division of Cell Biology, Metabolism and Cancer, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, CL, Utrecht, The Netherlands
| | - Cinthia Claudia Amaya Ramirez
- Translational Control and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany, Heidelberg, Germany
| | - Alexander Kowar
- Translational Control and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany, Heidelberg, Germany
- Faculty of Biosciences, University of Heidelberg, Heidelberg, Germany
| | - Daniela Aviles-Huerta
- Translational Control and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany, Heidelberg, Germany
- Faculty of Biosciences, University of Heidelberg, Heidelberg, Germany
| | - Celia R Berkers
- Division of Cell Biology, Metabolism and Cancer, Department Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, CL, Utrecht, The Netherlands
| | - Wilhelm Palm
- Division of Cell Signaling and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Darjus Tschaharganeh
- Cell Plasticity and Epigenetic Remodeling, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Institute of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - Jeroen Krijgsveld
- Proteomics of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Medical Faculty, University of Heidelberg, Heidelberg, Germany
| | - Fabricio Loayza-Puch
- Translational Control and Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany, Heidelberg, Germany.
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5
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Raza S, Rajak S, Yen PM, Sinha RA. Autophagy and hepatic lipid metabolism: mechanistic insight and therapeutic potential for MASLD. NPJ METABOLIC HEALTH AND DISEASE 2024; 2:19. [PMID: 39100919 PMCID: PMC11296953 DOI: 10.1038/s44324-024-00022-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Accepted: 07/04/2024] [Indexed: 08/06/2024]
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) originates from a homeostatic imbalance in hepatic lipid metabolism. Increased fat deposition in the liver of people suffering from MASLD predisposes them to develop further metabolic derangements, including diabetes mellitus, metabolic dysfunction-associated steatohepatitis (MASH), and other end-stage liver diseases. Unfortunately, only limited pharmacological therapies exist for MASLD to date. Autophagy, a cellular catabolic process, has emerged as a primary mechanism of lipid metabolism in mammalian hepatocytes. Furthermore, preclinical studies with autophagy modulators have shown promising results in resolving MASLD and mitigating its progress into deleterious liver pathologies. In this review, we discuss our current understanding of autophagy-mediated hepatic lipid metabolism, its therapeutic modulation for MASLD treatment, and current limitations and scope for clinical translation.
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Affiliation(s)
- Sana Raza
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014 India
| | - Sangam Rajak
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014 India
| | - Paul M. Yen
- Laboratory of Hormonal Regulation, Cardiovascular and Metabolic Disorders Program, Duke-NUS Medical School, Singapore, 169857 Singapore
| | - Rohit A. Sinha
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014 India
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6
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Schibalski RS, Shulha AS, Tsao BP, Palygin O, Ilatovskaya DV. The role of polyamine metabolism in cellular function and physiology. Am J Physiol Cell Physiol 2024; 327:C341-C356. [PMID: 38881422 DOI: 10.1152/ajpcell.00074.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 06/07/2024] [Accepted: 06/07/2024] [Indexed: 06/18/2024]
Abstract
Polyamines are molecules with multiple amino groups that are essential for cellular function. The major polyamines are putrescine, spermidine, spermine, and cadaverine. Polyamines are important for posttranscriptional regulation, autophagy, programmed cell death, proliferation, redox homeostasis, and ion channel function. Their levels are tightly controlled. High levels of polyamines are associated with proliferative pathologies such as cancer, whereas low polyamine levels are observed in aging, and elevated polyamine turnover enhances oxidative stress. Polyamine metabolism is implicated in several pathophysiological processes in the nervous, immune, and cardiovascular systems. Currently, manipulating polyamine levels is under investigation as a potential preventive treatment for several pathologies, including aging, ischemia/reperfusion injury, pulmonary hypertension, and cancer. Although polyamines have been implicated in many intracellular mechanisms, our understanding of these processes remains incomplete and is a topic of ongoing investigation. Here, we discuss the regulation and cellular functions of polyamines, their role in physiology and pathology, and emphasize the current gaps in knowledge and potential future research directions.
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Affiliation(s)
- Ryan S Schibalski
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
| | - Anastasia S Shulha
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
| | - Betty P Tsao
- Division of Rheumatology & Immunology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States
| | - Oleg Palygin
- Division of Nephrology, Department of Medicine, Medical University of South Carolina, Charleston, South Carolina, United States
| | - Daria V Ilatovskaya
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, Georgia, United States
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7
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Pisani DF, Lettieri-Barbato D, Ivanov S. Polyamine metabolism in macrophage-adipose tissue function and homeostasis. Trends Endocrinol Metab 2024:S1043-2760(24)00126-7. [PMID: 38897879 DOI: 10.1016/j.tem.2024.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/23/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
Intracellular metabolism is a crucial regulator of macrophage function. Recent evidence revealed that the polyamine pathway and subsequent hypusination of eukaryotic initiation factor 5A (eIF5A) are master regulators of immune cell functions. In brown adipose tissue (BAT), macrophages show an impressive degree of heterogenicity, with specific subsets supporting adaptive thermogenesis during cold exposure. In this review, we discuss the impact of polyamine metabolism on macrophage diversity and function, with a particular focus on their role in adipose tissue homeostasis. Thus, we highlight the exploration of how polyamine metabolism in macrophages contributes to BAT homeostasis as an attractive and exciting new field of research.
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Affiliation(s)
| | - Daniele Lettieri-Barbato
- Department of Biology, University of Rome Tor Vergata, Rome, Italy; IRCCS-Fondazione Bietti, Rome, Italy.
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8
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Lemay SE, Grobs Y, Romanet C, Martineau S, Salem M, Shimauchi T, Breuils-Bonnet S, Bourgeois A, Théberge C, Pelletier A, Potus F, Provencher S, Bonnet S, Boucherat O. Hypusine Signaling Promotes Pulmonary Vascular Remodeling in Pulmonary Arterial Hypertension. Am J Respir Crit Care Med 2024; 209:1376-1391. [PMID: 38261723 DOI: 10.1164/rccm.202305-0909oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 01/23/2024] [Indexed: 01/25/2024] Open
Abstract
Rationale: The ubiquitous polyamine spermidine is essential for cell survival and proliferation. One important function of spermidine is to serve as a substrate for hypusination, a posttranslational modification process that occurs exclusively on eukaryotic translation factor 5A (eIF5A) and ensures efficient translation of various gene products. Pulmonary arterial hypertension (PAH) is a life-threatening disease characterized by progressive obliteration of the small pulmonary arteries (PAs) caused by excessive proliferation of PA smooth muscle cells (PASMCs) and suppressed apoptosis. Objectives: To characterize the role of hypusine signaling in PAH. Methods: Molecular, genetic, and pharmacological approaches were used both in vitro and in vivo to investigate the role of hypusine signaling in pulmonary vascular remodeling. Measurements and Main Results: Hypusine forming enzymes-deoxyhypusine synthase (DHPS) and deoxyhypusine hydroxylase (DOHH)-and hypusinated eukaryotic translation factor 5A are overexpressed in distal PAs and isolated PASMCs from PAH patients and animal models. In vitro, inhibition of DHPS using N1-guanyl-1,7-diaminoheptane or shRNA resulted in a decrease in PAH-PASMC resistance to apoptosis and proliferation. In vivo, inactivation of one allele of Dhps targeted to smooth muscle cells alleviates PAH in mice, and its pharmacological inhibition significantly decreases pulmonary vascular remodeling and improves hemodynamics and cardiac function in two rat models of established PAH. With mass spectrometry, hypusine signaling is shown to promote the expression of a broad array of proteins involved in oxidative phosphorylation, thus supporting the bioenergetic requirements of cell survival and proliferation. Conclusions: These findings support inhibiting hypusine signaling as a potential treatment for PAH.
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MESH Headings
- Animals
- Vascular Remodeling/drug effects
- Vascular Remodeling/physiology
- Rats
- Signal Transduction
- Humans
- Pulmonary Arterial Hypertension/physiopathology
- Pulmonary Arterial Hypertension/drug therapy
- Pulmonary Arterial Hypertension/metabolism
- Male
- Disease Models, Animal
- Pulmonary Artery/physiopathology
- Pulmonary Artery/drug effects
- Mice
- Peptide Initiation Factors/metabolism
- Peptide Initiation Factors/genetics
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Eukaryotic Translation Initiation Factor 5A
- Cell Proliferation/drug effects
- Oxidoreductases Acting on CH-NH Group Donors/genetics
- Oxidoreductases Acting on CH-NH Group Donors/metabolism
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/physiopathology
- Hypertension, Pulmonary/physiopathology
- Hypertension, Pulmonary/metabolism
- Lysine/analogs & derivatives
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Affiliation(s)
- Sarah-Eve Lemay
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Yann Grobs
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Charlotte Romanet
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Sandra Martineau
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Mabrouka Salem
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Tsukasa Shimauchi
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Sandra Breuils-Bonnet
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Alice Bourgeois
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Charlie Théberge
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Andréanne Pelletier
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - François Potus
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
| | - Steeve Provencher
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
- Department of Medicine, Laval University, Quebec City, Quebec, Canada
| | - Sébastien Bonnet
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
- Department of Medicine, Laval University, Quebec City, Quebec, Canada
| | - Olivier Boucherat
- Pulmonary Hypertension Research Group, Québec Heart and Lung Institute Research Centre, Quebec City, Quebec, Canada; and
- Department of Medicine, Laval University, Quebec City, Quebec, Canada
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9
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Kudryashova TV, Jiang L, Goncharova EA. What Is All of the Hype About? Hypusine Signaling as a Driver of Pulmonary Hypertension. Am J Respir Crit Care Med 2024; 209:1298-1300. [PMID: 38412504 PMCID: PMC11146570 DOI: 10.1164/rccm.202401-0195ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 02/27/2024] [Indexed: 02/29/2024] Open
Affiliation(s)
- Tatiana V Kudryashova
- Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute University of Pittsburgh Pittsburgh, Pennsylvania
| | - Lifeng Jiang
- Department of Internal Medicine University of California Davis Davis, California
| | - Elena A Goncharova
- Department of Internal Medicine University of California Davis Davis, California
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10
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Fu Y, Wang Z, Qin H. Examining the Pathogenesis of MAFLD and the Medicinal Properties of Natural Products from a Metabolic Perspective. Metabolites 2024; 14:218. [PMID: 38668346 PMCID: PMC11052500 DOI: 10.3390/metabo14040218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 04/06/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
Metabolic-associated fatty liver disease (MAFLD), characterized primarily by hepatic steatosis, has become the most prevalent liver disease worldwide, affecting approximately two-fifths of the global population. The pathogenesis of MAFLD is extremely complex, and to date, there are no approved therapeutic drugs for clinical use. Considerable evidence indicates that various metabolic disorders play a pivotal role in the progression of MAFLD, including lipids, carbohydrates, amino acids, and micronutrients. In recent years, the medicinal properties of natural products have attracted widespread attention, and numerous studies have reported their efficacy in ameliorating metabolic disorders and subsequently alleviating MAFLD. This review aims to summarize the metabolic-associated pathological mechanisms of MAFLD, as well as the natural products that regulate metabolic pathways to alleviate MAFLD.
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Affiliation(s)
| | | | - Hong Qin
- Department of Nutrition and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410006, China; (Y.F.); (Z.W.)
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11
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Huang J, Li J, Peng Y, Cui T, Guo J, Duan S, Zhou K, Huang S, Chen J, Yi Q, Qiu M, Chen T, Wu X, Ma C, Zhang Z, Zheng Y, Tang X, Pang Y, Zhang L, Zhong C, Gao Y. The lack of PPARα exacerbated the progression of non-alcoholic steatohepatitis in mice with spleen deficiency syndrome by triggering an inflammatory response. Front Immunol 2024; 15:1381340. [PMID: 38633246 PMCID: PMC11021588 DOI: 10.3389/fimmu.2024.1381340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 03/14/2024] [Indexed: 04/19/2024] Open
Abstract
Background In addition to abnormal liver inflammation, the main symptoms of non-alcoholic steatohepatitis (NASH) are often accompanied by gastrointestinal digestive dysfunction, consistent with the concept of spleen deficiency (SD) in traditional Chinese medicine. As an important metabolic sensor, whether peroxisome proliferator-activated receptor alpha (PPARα) participates in regulating the occurrence and development of NASH with SD (NASH-SD) remains to be explored. Methods Clinical liver samples were collected for RNA-seq analysis. C57BL/6J mice induced by folium sennae (SE) were used as an SD model. qPCR analysis was conducted to evaluate the inflammation and metabolic levels of mice. PPARα knockout mice (PPARαko) were subjected to SE and methionine-choline-deficient (MCD) diet to establish the NASH-SD model. The phenotype of NASH and the inflammatory indicators were measured using histopathologic analysis and qPCR as well. Results The abnormal expression of PPARα signaling, coupled with metabolism and inflammation, was found in the results of RNA-seq analysis from clinical samples. SD mice showed a more severe inflammatory response in the liver evidenced by the increases in macrophage biomarkers, inflammatory factors, and fibrotic indicators in the liver. qPCR results also showed differences in PPARα between SD mice and control mice. In PPARαko mice, further evidence was found that the lack of PPARα exacerbated the inflammatory response phenotype as well as the lipid metabolism disorder in NASH-SD mice. Conclusion The abnormal NR signaling accelerated the vicious cycle between lipotoxicity and inflammatory response in NAFLD with SD. Our results provide new evidence for nuclear receptors as potential therapeutic targets for NAFLD with spleen deficiency.
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Affiliation(s)
- Jiawen Huang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiayu Li
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuan Peng
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong, China
| | - Tianqi Cui
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingyi Guo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Siwei Duan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kaili Zhou
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shangyi Huang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiabing Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qincheng Yi
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Min Qiu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Tingting Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoqin Wu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Chenlu Ma
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ziyi Zhang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yi Zheng
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xi Tang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yanqing Pang
- Department of Phase I Clinical Research Center, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
| | - Lei Zhang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin, China
| | - Chong Zhong
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yong Gao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
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12
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Bi G, Liang J, Bian Y, Shan G, Huang Y, Lu T, Zhang H, Jin X, Chen Z, Zhao M, Fan H, Wang Q, Gan B, Zhan C. Polyamine-mediated ferroptosis amplification acts as a targetable vulnerability in cancer. Nat Commun 2024; 15:2461. [PMID: 38504107 PMCID: PMC10951362 DOI: 10.1038/s41467-024-46776-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 03/11/2024] [Indexed: 03/21/2024] Open
Abstract
Targeting ferroptosis, an iron-dependent form of regulated cell death triggered by the lethal overload of lipid peroxides, in cancer therapy is impeded by our limited understanding of the intersection of tumour's metabolic feature and ferroptosis vulnerability. In the present study, arginine is identified as a ferroptotic promoter using a metabolites library. This effect is mainly achieved through arginine's conversion to polyamines, which exerts their potent ferroptosis-promoting property in an H2O2-dependent manner. Notably, the expression of ornithine decarboxylase 1 (ODC1), the critical enzyme catalysing polyamine synthesis, is significantly activated by the ferroptosis signal--iron overload--through WNT/MYC signalling, as well as the subsequent elevated polyamine synthesis, thus forming a ferroptosis-iron overload-WNT/MYC-ODC1-polyamine-H2O2 positive feedback loop that amplifies ferroptosis. Meanwhile, we notice that ferroptotic cells release enhanced polyamine-containing extracellular vesicles into the microenvironment, thereby further sensitizing neighbouring cells to ferroptosis and accelerating the "spread" of ferroptosis in the tumour region. Besides, polyamine supplementation also sensitizes cancer cells or xenograft tumours to radiotherapy or chemotherapy through inducing ferroptosis. Considering that cancer cells are often characterized by elevated intracellular polyamine pools, our results indicate that polyamine metabolism exposes a targetable vulnerability to ferroptosis and represents an exciting opportunity for therapeutic strategies for cancer.
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Affiliation(s)
- Guoshu Bi
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jiaqi Liang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yunyi Bian
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guangyao Shan
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yiwei Huang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tao Lu
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Huan Zhang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xing Jin
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhencong Chen
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Mengnan Zhao
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hong Fan
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qun Wang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Boyi Gan
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
| | - Cheng Zhan
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
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13
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Lu X, Yang R, Chen Y, Chen D. NAD metabolic therapy in metabolic dysfunction-associated steatotic liver disease: Possible roles of gut microbiota. iScience 2024; 27:109174. [PMID: 38405608 PMCID: PMC10884928 DOI: 10.1016/j.isci.2024.109174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024] Open
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD), formerly named non-alcoholic fatty liver disease (NAFLD), is induced by alterations of hepatic metabolism. As a critical metabolites function regulator, nicotinamide adenine dinucleotide (NAD) nowadays has been validated to be effective in the treatment of diet-induced murine model of MASLD. Additionally, gut microbiota has been reported to have the potential to prevent MASLD by dietary NAD precursors metabolizing together with mammals. However, the underlying mechanism remains unclear. In this review, we hypothesized that NAD enhancing mitochondrial activity might reshape a specific microbiota signature, and improve MASLD progression demonstrated by fecal microbiota transplantation. Here, this review especially focused on the mechanism of Microbiota-Gut-Liver Axis together with NAD metabolism for the MASLD progress. Notably, we found significant changes in Prevotella associated with NAD in a gut microbiome signature of certain MASLD patients. With the recent researches, we also inferred that Prevotella can not only regulate the level of NAD pool by boosting the carbon metabolism, but also play a vital part in regulating the branched-chain amino acid (BCAA)-related fatty acid metabolism pathway. Altogether, our results support the notion that the gut microbiota contribute to the dietary NAD precursors metabolism in MASLD development and the dietary NAD precursors together with certain gut microbiota may be a preventive or therapeutic strategy in MASLD management.
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Affiliation(s)
- Xinyi Lu
- Wuxi Medical Center, Nanjing Medical University, Jiangsu 211166, China
- Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Jiangsu 214002, China
| | - Rui Yang
- Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Jiangsu 214002, China
| | - Yu Chen
- Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Jiangsu 214002, China
| | - Daozhen Chen
- Wuxi Medical Center, Nanjing Medical University, Jiangsu 211166, China
- Wuxi Maternity and Child Health Care Hospital, Wuxi School of Medicine, Jiangnan University, Jiangsu 214002, China
- Department of Laboratory, Haidong Second People’s Hospital, Haidong 810699, China
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14
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Wang Y, Yu H, Cen Z, Zhu Y, Wu W. Drug targets regulate systemic metabolism and provide new horizons to treat nonalcoholic steatohepatitis. Metabol Open 2024; 21:100267. [PMID: 38187470 PMCID: PMC10770762 DOI: 10.1016/j.metop.2023.100267] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 12/06/2023] [Accepted: 12/12/2023] [Indexed: 01/09/2024] Open
Abstract
Nonalcoholic steatohepatitis (NASH), is the advanced stage of nonalcoholic fatty liver disease (NAFLD) with rapidly rising global prevalence. It is featured with severe hepatocyte apoptosis, inflammation and hepatic lipogenesis. The drugs directly targeting the processes of steatosis, inflammation and fibrosis are currently under clinical investigation. Nevertheless, the long-term ineffectiveness and remarkable adverse effects are well documented, and new concepts are required to tackle with the root causes of NASH progression. We critically assess the recently validated drug targets that regulate the systemic metabolism to ameliorate NASH. Thermogenesis promoted by mitochondrial uncouplers restores systemic energy expenditure. Furthermore, regulation of mitochondrial proteases and proteins that are pivotal for intracellular metabolic homeostasis normalize mitochondrial function. Secreted proteins also improve systemic metabolism, and NASH is ameliorated by agonizing receptors of secreted proteins with small molecules. We analyze the drug design, the advantages and shortcomings of these novel drug candidates. Meanwhile, the structural modification of current NASH therapeutics significantly increased their selectivity, efficacy and safety. Furthermore, the arising CRISPR-Cas9 screen strategy on liver organoids has enabled the identification of new genes that mediate lipid metabolism, which may serve as promising drug targets. In summary, this article discusses the in-depth novel mechanisms and the multidisciplinary approaches, and they provide new horizons to treat NASH.
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Affiliation(s)
- Yibing Wang
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
- Shanghai Frontiers Science Research Base of Exercise and Metabolic Health, China
| | - Hanhan Yu
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
| | - Zhipeng Cen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
- Nanhai Translational Innovation Center of Precision Immunology, Sun Yat-Sen Memorial Hospital, Foshan, 528200, China
| | - Yutong Zhu
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
| | - Wenyi Wu
- School of Kinesiology, Shanghai University of Sport, Shanghai, 200438, China
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15
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Kasahara N, Teratani T, Yokota S, Sakuma Y, Sasanuma H, Fujimoto Y, Ijichi T, Urahashi T, Yoshitomi H, Kitayama J, Sata N. Dietary polyamines promote intestinal adaptation in an experimental model of short bowel syndrome. Sci Rep 2024; 14:4605. [PMID: 38409241 PMCID: PMC10897130 DOI: 10.1038/s41598-024-55258-4] [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: 06/24/2023] [Accepted: 02/21/2024] [Indexed: 02/28/2024] Open
Abstract
Intestinal adaptation does not necessarily recover absorptive capacity in short bowel syndrome (SBS), sometimes resulting in intestinal failure-associated liver disease (IFALD). Additionally, its therapeutic options remain limited. Polyamines (spermidine and spermine) are known as one of the autophagy inducers and play important roles in promoting the weaning process; however, their impact on intestinal adaptation is unknown. The aim of this study was to investigate the impact of polyamines ingestion on adaptation and hepatic lipid metabolism in SBS. We performed resection of two-thirds of the small intestine in male Lewis rats as an SBS model. They were allocated into three groups and fed different polyamine content diets (0%, 0.01%, 0.1%) for 30 days. Polyamines were confirmed to distribute to remnant intestine, whole blood, and liver. Villous height and number of Ki-67-positive cells in the crypt area increased with the high polyamine diet. Polyamines increased secretory IgA and mucin content in feces, and enhanced tissue Claudin-3 expression. In contrast, polyamines augmented albumin synthesis, mitochondrial DNA copy number, and ATP storage in the liver. Moreover, polyamines promoted autophagy flux and activated AMP-activated protein kinase with suppression of lipogenic gene expression. Polyamines ingestion may provide a new therapeutic option for SBS with IFALD.
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Affiliation(s)
- Naoya Kasahara
- Department of Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Takumi Teratani
- Division of Translational Research, Jichi Medical University, Shimotsuke, Japan.
| | | | - Yasunaru Sakuma
- Department of Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Hideki Sasanuma
- Department of Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Yasuhiro Fujimoto
- Department of Transplant Surgery, Nagoya University Hospital, Nagoya, Japan
| | - Tetsuo Ijichi
- Division of Translational Research, Jichi Medical University, Shimotsuke, Japan
| | - Taizen Urahashi
- Department of Surgery, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Hideyuki Yoshitomi
- Department of Surgery, Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan
| | - Joji Kitayama
- Department of Surgery, Jichi Medical University, Shimotsuke, Japan
| | - Naohiro Sata
- Department of Surgery, Jichi Medical University, Shimotsuke, Japan
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16
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Liu Q, Yan X, Li R, Yuan Y, Wang J, Zhao Y, Fu J, Su J. Polyamine Signal through HCC Microenvironment: A Key Regulator of Mitochondrial Preservation and Turnover in TAMs. Int J Mol Sci 2024; 25:996. [PMID: 38256070 PMCID: PMC10816144 DOI: 10.3390/ijms25020996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 01/06/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common primary liver cancer, and, with increasing research on the tumor immune microenvironment (TIME), the immunosuppressive micro-environment of HCC hampers further application of immunotherapy, even though immunotherapy can provide survival benefits to patients with advanced liver cancer. Current studies suggest that polyamine metabolism is not only a key metabolic pathway for the formation of immunosuppressive phenotypes in tumor-associated macrophages (TAMs), but it is also profoundly involved in mitochondrial quality control signaling and the energy metabolism regulation process, so it is particularly important to further investigate the role of polyamine metabolism in the tumor microenvironment (TME). In this review, by summarizing the current research progress of key enzymes and substrates of the polyamine metabolic pathway in regulating TAMs and T cells, we propose that polyamine biosynthesis can intervene in the process of mitochondrial energy metabolism by affecting mitochondrial autophagy, which, in turn, regulates macrophage polarization and T cell differentiation. Polyamine metabolism may be a key target for the interactive dialog between HCC cells and immune cells such as TAMs, so interfering with polyamine metabolism may become an important entry point to break intercellular communication, providing new research space for developing polyamine metabolism-based therapy for HCC.
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Affiliation(s)
| | | | | | | | | | | | | | - Jing Su
- Key Laboratory of Pathobiology, Department of Pathophysiology, Ministry of Education, College of Basical Medical Sciences, Jilin University, 126 Xinmin Street, Changchun 130012, China; (Q.L.); (X.Y.); (R.L.); (Y.Y.); (J.W.); (Y.Z.); (J.F.)
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17
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Xiong H, Ye J, Luo Q, Li W, Xu N, Yang H. Exosomal EIF5A derived from Lewis lung carcinoma induced adipocyte wasting in cancer cachexia. Cell Signal 2023; 112:110901. [PMID: 37743008 DOI: 10.1016/j.cellsig.2023.110901] [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: 04/18/2023] [Revised: 08/11/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Abstract
Cancer cachexia is a systemic inflammation-driven syndrome, characterized by muscle atrophy and adipose tissue wasting, with progressive weight loss leading to serious impairment of physiological function. Extracellular vesicles (EVs) derived from cancer cells play a significant role in adipocyte lipolysis, yet the mechanism remain uneclucidated. In this study, EVs derived from Lewis lung carcinoma (LLC) cells were extracted and characterized. 3T3-L1 and HIB1B adipocytes were cultured with conditioned medium or EVs from LLC, and LLC cells were used to establish a cancer cachexia mouse model. EVs derived from LLC cells were taken up by 3T3-L1 and HIB1B adipocytes, and derived exosomal EIF5A protein-induced lipolysis of adipocytes. High level of EIF5A was expressed in EVs from LLC cells, exosomal EIF5A is linked to lipid metabolism. Elevated expression of EIF5A is associated with shorter overall survival in lung cancer patients. Western blots, glycerol release and Oil red O staining assays were used to evaluate lipolysis of adipocytes. The reduction of lipolysis in 3T3-L1 and HIB1B adipocytes is achieved through silencing EIF5A or treating with pharmacologic inhibitor GC7 in vitro, and suppressing the expression of EIF5A in LLC cells by infected with shRNA or GC7 treatment partly alleviated white and brown adipose tissue lipolysis in vivo. Mechanistically, EIF5A directly binds with G protein-coupled bile acid receptor 1 (GPBAR1) mRNA to promote its translation and then activates cAMP response element binding protein (CREB) signaling pathway to induce lipolysis. This study demonstrates that exosomal EIF5A from LLC cells, with hypusinated EIF5A, has a lipolytic effect on adipocyte and adipose tissues in cancer cachexia model. Exosomal EIF5A could be involved in lipolysis and these findings indicate that a novel regulator and potential target for cachexia treatment.
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Affiliation(s)
- Hairong Xiong
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaxin Ye
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Infectious Diseases, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qianqian Luo
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wen Li
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ning Xu
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongmei Yang
- Department of Pathogenic Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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18
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Zhang Y, Fan Y, Hu H, Zhang X, Wang Z, Wu Z, Wang L, Yu X, Song X, Xiang P, Zhang X, Wang T, Tan S, Li C, Gao L, Liang X, Li S, Li N, Yue X, Ma C. ZHX2 emerges as a negative regulator of mitochondrial oxidative phosphorylation during acute liver injury. Nat Commun 2023; 14:7527. [PMID: 37980429 PMCID: PMC10657347 DOI: 10.1038/s41467-023-43439-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023] Open
Abstract
Mitochondria dysfunction contributes to acute liver injuries, and mitochondrial regulators, such as PGC-1α and MCJ, affect liver regeneration. Therefore, identification of mitochondrial modulators may pave the way for developing therapeutic strategies. Here, ZHX2 is identified as a mitochondrial regulator during acute liver injury. ZHX2 both transcriptionally inhibits expression of several mitochondrial electron transport chain genes and decreases PGC-1α stability, leading to reduction of mitochondrial mass and OXPHOS. Loss of Zhx2 promotes liver recovery by increasing mitochondrial OXPHOS in mice with partial hepatectomy or CCl4-induced liver injury, and inhibition of PGC-1α or electron transport chain abolishes these effects. Notably, ZHX2 expression is higher in liver tissues from patients with drug-induced liver injury and is negatively correlated with mitochondrial mass marker TOM20. Delivery of shRNA targeting Zhx2 effectively protects mice from CCl4-induced liver injury. Together, our data clarify ZHX2 as a negative regulator of mitochondrial OXPHOS and a potential target for developing strategies for improving liver recovery after acute injuries.
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Affiliation(s)
- Yankun Zhang
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Yuchen Fan
- Department of Hepatology, Qilu Hospital of Shandong University, Jinan, China
| | - Huili Hu
- Institute of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Xiaohui Zhang
- Institute of Molecular Medicine and Genetics, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Zehua Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Zhuanchang Wu
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Liyuan Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Xiangguo Yu
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Xiaojia Song
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Peng Xiang
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Xiaodong Zhang
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Tixiao Wang
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Siyu Tan
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Chunyang Li
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Shandong University, Jinan, China
| | - Lifen Gao
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Xiaohong Liang
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China
| | - Shuijie Li
- College of Pharmacy, Harbin Medical University, Harbin, China
| | - Nailin Li
- Department of Medicine-Solna, Cardiovascular Medicine Unit, Karolinska Institute, Stockholm, Sweden
| | - Xuetian Yue
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China.
- Department of Cell Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.
| | - Chunhong Ma
- Key Laboratory for Experimental Teratology of Ministry of Education, School of Basic Medical Sciences, Qilu Hospital, Cheeloo Medical College of Shandong University, Jinan, China.
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19
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Zhang Y, Bai J, Cui Z, Li Y, Gao Q, Miao Y, Xiong B. Polyamine metabolite spermidine rejuvenates oocyte quality by enhancing mitophagy during female reproductive aging. NATURE AGING 2023; 3:1372-1386. [PMID: 37845508 DOI: 10.1038/s43587-023-00498-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 08/30/2023] [Indexed: 10/18/2023]
Abstract
Advanced age is a primary risk factor for female infertility due to reduced ovarian reserve and declining oocyte quality. However, as an important contributing factor, the role of metabolic regulation during reproductive aging is poorly understood. Here, we applied untargeted metabolomics to identify spermidine as a critical metabolite in ovaries to protect oocytes against aging. In particular, we found that the spermidine level was reduced in ovaries of aged mice and that supplementation with spermidine promoted follicle development, oocyte maturation, early embryonic development and female fertility of aged mice. By microtranscriptomic analysis, we further discovered that spermidine-induced recovery of oocyte quality was mediated by enhancement of mitophagy activity and mitochondrial function in aged mice, and this mechanism of action was conserved in porcine oocytes under oxidative stress. Altogether, our findings suggest that spermidine supplementation could represent a therapeutic strategy to ameliorate oocyte quality and reproductive outcome in cis-gender women and other persons trying to conceive at an advanced age. Future work is needed to test whether this approach can be safely and effectively translated to humans.
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Affiliation(s)
- Yu Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Jie Bai
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhaokang Cui
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Yu Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Qian Gao
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yilong Miao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Bo Xiong
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China.
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20
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Kang B, Wang X, An X, Ji C, Ling W, Qi Y, Li S, Jiang D. Polyamines in Ovarian Aging and Disease. Int J Mol Sci 2023; 24:15330. [PMID: 37895010 PMCID: PMC10607840 DOI: 10.3390/ijms242015330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/17/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Ovarian aging and disease-related decline in fertility are challenging medical and economic issues with an increasing prevalence. Polyamines are a class of polycationic alkylamines widely distributed in mammals. They are small molecules essential for cell growth and development. Polyamines alleviate ovarian aging through various biological processes, including reproductive hormone synthesis, cell metabolism, programmed cell death, etc. However, an abnormal increase in polyamine levels can lead to ovarian damage and promote the development of ovarian disease. Therefore, polyamines have long been considered potential therapeutic targets for aging and disease, but their regulatory roles in the ovary deserve further investigation. This review discusses the mechanisms by which polyamines ameliorate human ovarian aging and disease through different biological processes, such as autophagy and oxidative stress, to develop safe and effective polyamine targeted therapy strategies for ovarian aging and the diseases.
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Affiliation(s)
- Bo Kang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (X.W.); (X.A.); (C.J.); (W.L.); (Y.Q.); (S.L.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Xin Wang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (X.W.); (X.A.); (C.J.); (W.L.); (Y.Q.); (S.L.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiaoguang An
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (X.W.); (X.A.); (C.J.); (W.L.); (Y.Q.); (S.L.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Chengweng Ji
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (X.W.); (X.A.); (C.J.); (W.L.); (Y.Q.); (S.L.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Weikang Ling
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (X.W.); (X.A.); (C.J.); (W.L.); (Y.Q.); (S.L.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuxin Qi
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (X.W.); (X.A.); (C.J.); (W.L.); (Y.Q.); (S.L.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Shuo Li
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (X.W.); (X.A.); (C.J.); (W.L.); (Y.Q.); (S.L.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
| | - Dongmei Jiang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China; (X.W.); (X.A.); (C.J.); (W.L.); (Y.Q.); (S.L.)
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China
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21
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Ohtani N, Kamiya T, Kawada N. Recent updates on the role of the gut-liver axis in the pathogenesis of NAFLD/NASH, HCC, and beyond. Hepatol Commun 2023; 7:e0241. [PMID: 37639702 PMCID: PMC10462074 DOI: 10.1097/hc9.0000000000000241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/30/2023] [Indexed: 08/31/2023] Open
Abstract
The gut and the liver are anatomically and physiologically connected, and this connection is called the "gut-liver axis," which exerts various influences on liver physiology and pathology. The gut microbiota has been recognized to trigger innate immunity and modulate the liver immune microenvironment. Gut microbiota influences the physiological processes in the host, such as metabolism, by acting on various signaling receptors and transcription factors through their metabolites and related molecules. The gut microbiota has also been increasingly recognized to modulate the efficacy of immune checkpoint inhibitors. In this review, we discuss recent updates on gut microbiota-associated mechanisms in the pathogenesis of chronic liver diseases such as NAFLD and NASH, as well as liver cancer, in light of the gut-liver axis. We particularly focus on gut microbial metabolites and components that are associated with these liver diseases. We also discuss the role of gut microbiota in modulating the response to immunotherapy in liver diseases.
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Affiliation(s)
- Naoko Ohtani
- Department of Pathophysiology, Osaka Metropolitan University, Graduate School of Medicine, Osaka, Japan
| | - Tomonori Kamiya
- Department of Pathophysiology, Osaka Metropolitan University, Graduate School of Medicine, Osaka, Japan
| | - Norifumi Kawada
- Department of Hepatology, Osaka Metropolitan University, Graduate School of Medicine, Osaka, Japan
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22
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Wee HN, Lee LS, Han SHY, Zhou J, Yen PM, Ching J. Lipidomics Workflow for Analyzing Lipid Profiles Using Multiple Reaction Monitoring (MRM) in Liver Homogenate of Mice with Non-alcoholic Steatohepatitis (NASH). Bio Protoc 2023; 13:e4773. [PMID: 37456342 PMCID: PMC10338713 DOI: 10.21769/bioprotoc.4773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/11/2023] [Accepted: 06/05/2023] [Indexed: 07/18/2023] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is a condition characterized by inflammation and hepatic injury/fibrosis caused by the accumulation of ectopic fats in the liver. Recent advances in lipidomics have allowed the identification and characterization of lipid species and have revealed signature patterns of various diseases. Here, we describe a lipidomics workflow to assess the lipid profiles of liver homogenates taken from a NASH mouse model. The protocol described below was used to extract and analyze the metabolites from the livers of mice with NASH by liquid chromatography-mass spectrometry (LC-MS); however, it can be applied to other tissue homogenate samples. Using this method, over 1,000 species of lipids from five classes can be analyzed in a single run on the LC-MS. Also, partial elucidation of the identity of neutral lipid (triacylglycerides and diacylglycerides) aliphatic chains can be performed with this simple LC-MS setup. Key features Over 1,000 lipid species (sphingolipids, cholesteryl esters, neutral lipids, phospholipids, fatty acids) are analyzed in one run. Analysis of liver lipids in non-alcoholic steatohepatitis (NASH) mouse model. Normal-phase chromatography coupled to a triple quadrupole mass spectrometer.
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Affiliation(s)
- Hai Ning Wee
- Cardiovascular and Metabolic Disorders Programme, Duke-NUS Medical School, Singapore, Singapore
| | - Lye Siang Lee
- Cardiovascular and Metabolic Disorders Programme, Duke-NUS Medical School, Singapore, Singapore
| | - Sharon Hong Yu Han
- Cardiovascular and Metabolic Disorders Programme, Duke-NUS Medical School, Singapore, Singapore
| | - Jin Zhou
- Cardiovascular and Metabolic Disorders Programme, Duke-NUS Medical School, Singapore, Singapore
| | - Paul Michael Yen
- Cardiovascular and Metabolic Disorders Programme, Duke-NUS Medical School, Singapore, Singapore
| | - Jianhong Ching
- Cardiovascular and Metabolic Disorders Programme, Duke-NUS Medical School, Singapore, Singapore
- KK Research Centre, KK Women’s and Children’s Hospital, Singapore, Singapore
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23
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Zimmermann A, Hofer SJ, Madeo F. Molecular targets of spermidine: implications for cancer suppression. Cell Stress 2023; 7:50-58. [PMID: 37431488 PMCID: PMC10320397 DOI: 10.15698/cst2023.07.281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/14/2023] [Accepted: 06/21/2023] [Indexed: 07/12/2023] Open
Abstract
Spermidine is a ubiquitous, natural polyamine with geroprotective features. Supplementation of spermidine extends the lifespan of yeast, worms, flies, and mice, and dietary spermidine intake correlates with reduced human mortality. However, the crucial role of polyamines in cell proliferation has also implicated polyamine metabolism in neoplastic diseases, such as cancer. While depleting intracellular polyamine biosynthesis halts tumor growth in mouse models, lifelong external spermidine administration in mice does not increase cancer incidence. In contrast, a series of recent findings points to anti-neoplastic properties of spermidine administration in the context of immunotherapy. Various molecular mechanisms for the anti-aging and anti-cancer properties have been proposed, including the promotion of autophagy, enhanced translational control, and augmented mitochondrial function. For instance, spermidine allosterically activates mitochondrial trifunctional protein (MTP), a bipartite protein complex that mediates three of the four steps of mitochondrial fatty acid (β-oxidation. Through this action, spermidine supplementation is able to restore MTP-mediated mitochondrial respiratory capacity in naïve CD8+ T cells to juvenile levels and thereby improves T cell activation in aged mice. Here, we put this finding into the context of the previously described molecular target space of spermidine.
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Affiliation(s)
- Andreas Zimmermann
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- Field of Excellence BioHealth, University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
| | - Sebastian J. Hofer
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- Field of Excellence BioHealth, University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
| | - Frank Madeo
- Institute of Molecular Biosciences, NAWI Graz, University of Graz, Graz, Austria
- Field of Excellence BioHealth, University of Graz, Graz, Austria
- BioTechMed Graz, Graz, Austria
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24
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Gonzalez-Menendez P, Phadke I, Olive ME, Joly A, Papoin J, Yan H, Galtier J, Platon J, Kang SWS, McGraw KL, Daumur M, Pouzolles M, Kondo T, Boireau S, Paul F, Young DJ, Lamure S, Mirmira RG, Narla A, Cartron G, Dunbar CE, Boyer-Clavel M, Porat-Shliom N, Dardalhon V, Zimmermann VS, Sitbon M, Dever TE, Mohandas N, Da Costa L, Udeshi ND, Blanc L, Kinet S, Taylor N. Arginine metabolism regulates human erythroid differentiation through hypusination of eIF5A. Blood 2023; 141:2520-2536. [PMID: 36735910 PMCID: PMC10273172 DOI: 10.1182/blood.2022017584] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 01/20/2023] [Accepted: 01/20/2023] [Indexed: 02/05/2023] Open
Abstract
Metabolic programs contribute to hematopoietic stem and progenitor cell (HSPC) fate, but it is not known whether the metabolic regulation of protein synthesis controls HSPC differentiation. Here, we show that SLC7A1/cationic amino acid transporter 1-dependent arginine uptake and its catabolism to the polyamine spermidine control human erythroid specification of HSPCs via the activation of the eukaryotic translation initiation factor 5A (eIF5A). eIF5A activity is dependent on its hypusination, a posttranslational modification resulting from the conjugation of the aminobutyl moiety of spermidine to lysine. Notably, attenuation of hypusine synthesis in erythroid progenitors, by the inhibition of deoxyhypusine synthase, abrogates erythropoiesis but not myeloid cell differentiation. Proteomic profiling reveals mitochondrial translation to be a critical target of hypusinated eIF5A, and accordingly, progenitors with decreased hypusine activity exhibit diminished oxidative phosphorylation. This affected pathway is critical for eIF5A-regulated erythropoiesis, as interventions augmenting mitochondrial function partially rescue human erythropoiesis under conditions of attenuated hypusination. Levels of mitochondrial ribosomal proteins (RPs) were especially sensitive to the loss of hypusine, and we find that the ineffective erythropoiesis linked to haploinsufficiency of RPS14 in chromosome 5q deletions in myelodysplastic syndrome is associated with a diminished pool of hypusinated eIF5A. Moreover, patients with RPL11-haploinsufficient Diamond-Blackfan anemia as well as CD34+ progenitors with downregulated RPL11 exhibit a markedly decreased hypusination in erythroid progenitors, concomitant with a loss of mitochondrial metabolism. Thus, eIF5A-dependent protein synthesis regulates human erythropoiesis, and our data reveal a novel role for RPs in controlling eIF5A hypusination in HSPCs, synchronizing mitochondrial metabolism with erythroid differentiation.
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Affiliation(s)
- Pedro Gonzalez-Menendez
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Ira Phadke
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
- Pediatric Oncology Branch, National Cancer Institute (NCI), Center for Cancer Research (CCR), National Institutes of Health (NIH), Bethesda, MD
| | - Meagan E. Olive
- Proteomics Platform, Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, MA
| | - Axel Joly
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Julien Papoin
- Feinstein Institute for Medical Research, Manhasset, NY
- EA4666 HEMATIM, Université Picardie Jules Verne, Amiens, France
| | | | - Jérémy Galtier
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Jessica Platon
- EA4666 HEMATIM, Université Picardie Jules Verne, Amiens, France
| | | | - Kathy L. McGraw
- Laboratory of Receptor Biology and Gene Expression, NCI, CCR, NIH, Bethesda, MD
| | - Marie Daumur
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Marie Pouzolles
- Pediatric Oncology Branch, National Cancer Institute (NCI), Center for Cancer Research (CCR), National Institutes of Health (NIH), Bethesda, MD
| | - Taisuke Kondo
- Pediatric Oncology Branch, National Cancer Institute (NCI), Center for Cancer Research (CCR), National Institutes of Health (NIH), Bethesda, MD
| | - Stéphanie Boireau
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Montpellier Ressources Imagerie, BioCampus, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Franciane Paul
- Department of Clinical Hematology, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - David J. Young
- Translational Stem Cell Biology Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD
| | - Sylvain Lamure
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Department of Clinical Hematology, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | | | - Anupama Narla
- Division of Pediatric Hematology/Oncology, Stanford University, Stanford, CA
| | - Guillaume Cartron
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Department of Clinical Hematology, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Cynthia E. Dunbar
- Translational Stem Cell Biology Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD
| | - Myriam Boyer-Clavel
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | | | - Valérie Dardalhon
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | - Valérie S. Zimmermann
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | - Marc Sitbon
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Thomas E. Dever
- Section on Protein Biosynthesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD
| | | | - Lydie Da Costa
- Laboratory of Excellence GR-Ex, Paris, France
- EA4666 HEMATIM, Université Picardie Jules Verne, Amiens, France
- Service d'Hématologie Biologique (Hematology Diagnostic Laboratory), Assistance Publique–Hôpitaux de Paris, Robert Debr Hôpital, Paris, France
- Paris Cité University, Paris, France
| | - Namrata D. Udeshi
- Proteomics Platform, Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, MA
| | - Lionel Blanc
- Feinstein Institute for Medical Research, Manhasset, NY
| | - Sandrina Kinet
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Naomi Taylor
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
- Pediatric Oncology Branch, National Cancer Institute (NCI), Center for Cancer Research (CCR), National Institutes of Health (NIH), Bethesda, MD
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25
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Qi Q, Hu C, Zhang H, Sun R, Liu Q, Ouyang K, Xie Y, Li X, Wu W, Liu Y, Zhao G, Wei L. Dietary Supplementation with Putrescine Improves Growth Performance and Meat Quality of Wenchang Chickens. Animals (Basel) 2023; 13:ani13091564. [PMID: 37174601 PMCID: PMC10177372 DOI: 10.3390/ani13091564] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/25/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
This study was to investigate the effects of dietary supplementation with putrescine on the growth performance and meat quality of chickens. A total of 480 eighty-day-old female Wenchang chickens were randomly assigned into four groups, with 8 replications per group and 15 animals per replicate. The chickens in the control group (Con) were fed a basal diet; the 3 experimental groups were fed a basal diet with 0.01%, 0.03%, and 0.05% putrescine, respectively. The experiment lasted for 40 days. The results showed that dietary supplementation with 0.05% putrescine increased (p < 0.05) the final body weight and average daily weight gain, and decreased the ratio of feed intake to the body weight gain of Wenchang chickens. Dietary supplementation with putrescine decreased the concentrations of putrescine, spermidine, and spermine in serum (p < 0.05). The contents of methionine, phenylalanine, lysine, aspartic acid, tyrosine, total essential amino acids, and total amino acids in breast muscle were higher (p < 0.05) in 0.03% and 0.05% groups than those in Con group. However, the contents of undecanoic acid, lauric acid, tridecanoic acid, myristic acid, pentadecanoic acid, arachidic acid, docosanoic acid, tricosanic acid, lignoceric acid, erucic acid, cis-11,14,17-eicosatrienoate, linoleic acid, and total n-6 monounsaturated fatty acids in breast muscle were lower (p < 0.05) in 0.03% and 0.05% groups than those in Con group. In addition, putrescine supplementation decreased (p < 0.05) the ratio of n-6/n-3 polyunsaturated fatty acids in breast meat. Overall, dietary supplementation with 0.05% putrescine enhanced the growth performance and meat quality of Wenchang chickens.
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Affiliation(s)
- Qi Qi
- Sanya Institute, Hainan Academy of Agricultural Sciences (Hainan Experimental Animal Research Center), Sanya 572025, China
- Hainan Key Laboratory of Tropical Animal Breeding and Epidemic Research, Institute of Animal Husbandry & Veterinary Research, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Chengjun Hu
- Tropical Crop Genetic Resource Research Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
| | - Haojie Zhang
- College of Ocean and Fishery, Guangdong Eco-Engineering Polytechnic, Guangzhou 510220, China
| | - Ruiping Sun
- Hainan Key Laboratory of Tropical Animal Breeding and Epidemic Research, Institute of Animal Husbandry & Veterinary Research, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Quanwei Liu
- Hainan Key Laboratory of Tropical Animal Breeding and Epidemic Research, Institute of Animal Husbandry & Veterinary Research, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Kun Ouyang
- Hainan Key Laboratory of Tropical Animal Breeding and Epidemic Research, Institute of Animal Husbandry & Veterinary Research, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Yali Xie
- Hainan Key Laboratory of Tropical Animal Breeding and Epidemic Research, Institute of Animal Husbandry & Veterinary Research, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Xiang Li
- Hainan Key Laboratory of Tropical Animal Breeding and Epidemic Research, Institute of Animal Husbandry & Veterinary Research, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Wei Wu
- Hainan Key Laboratory of Tropical Animal Breeding and Epidemic Research, Institute of Animal Husbandry & Veterinary Research, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Yuhang Liu
- Hainan Key Laboratory of Tropical Animal Breeding and Epidemic Research, Institute of Animal Husbandry & Veterinary Research, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Guiping Zhao
- Sanya Institute, Hainan Academy of Agricultural Sciences (Hainan Experimental Animal Research Center), Sanya 572025, China
| | - Limin Wei
- Sanya Institute, Hainan Academy of Agricultural Sciences (Hainan Experimental Animal Research Center), Sanya 572025, China
- Hainan Key Laboratory of Tropical Animal Breeding and Epidemic Research, Institute of Animal Husbandry & Veterinary Research, Hainan Academy of Agricultural Sciences, Haikou 571100, China
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26
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Szydlowska M, Lasky G, Oldham S, Rivera C, Ford M, Sellman BR, Rhodes CJ, Cohen TS. Restoring polyamine levels by supplementation of spermidine modulates hepatic immune landscape in murine model of NASH. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166697. [PMID: 37054999 DOI: 10.1016/j.bbadis.2023.166697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 03/01/2023] [Accepted: 03/15/2023] [Indexed: 04/15/2023]
Abstract
AIMS To determine if changes in polyamines metabolism occur during non-alcoholic steatohepatitis (NASH) in human patients and mice, as well as to assess systemic and liver-specific effects of spermidine administration into mice suffering from advanced NASH. MATERIALS AND METHODS Human fecal samples were collected from 50 healthy and 50 NASH patients. For the preclinical studies C57Bl6/N male mice fed GAN or NIH-31 diet for 6 months were ordered from Taconic and liver biopsy was performed. Based on severity of liver fibrosis, body composition and body weight, the mice from both dietary groups were randomized into another two groups: half receiving 3 mM spermidine in drinking water, half normal water for subsequent 12 weeks. Body weight was measured weekly and glucose tolerance and body composition were assessed at the end. Blood and organs were collected during necropsy, and intrahepatic immune cells were isolated for flow cytometry analysis. RESULTS Metabolomic analysis of human and murine feces confirmed that levels of polyamines decreased along NASH progression. Administration of exogenous spermidine to the mice from both dietary groups did not affect body weight, body composition or adiposity. Moreover, incidence of macroscopic hepatic lesions was higher in NASH mice receiving spermidine. On the other hand, spermidine normalized numbers of Kupffer cells in the livers of mice suffering from NASH, although these beneficial effects did not translate into improved liver steatosis or fibrosis severity. CONCLUSION Levels of polyamines decrease during NASH in mice and human patients but spermidine administration does not improve advanced NASH.
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Affiliation(s)
- Marta Szydlowska
- Microbiome Discovery, Vaccines and Immune Therapies, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA.
| | - Ginger Lasky
- Microbiome Discovery, Vaccines and Immune Therapies, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Stephanie Oldham
- Research and Early Development, Cardiovascular Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Cristian Rivera
- Research and Early Development, Cardiovascular Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Michael Ford
- Animal Sciences & Technologies, AstraZeneca, Gaithersburg, MD, USA
| | - Bret R Sellman
- Microbiome Discovery, Vaccines and Immune Therapies, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Christopher J Rhodes
- Research and Early Development, Cardiovascular Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA
| | - Taylor S Cohen
- Microbiome Discovery, Vaccines and Immune Therapies, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA.
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Schultz CR, Sheldon RD, Xie H, Demireva EY, Uhl KL, Agnew DW, Geerts D, Bachmann AS. New K50R mutant mouse models reveal impaired hypusination of eif5a2 with alterations in cell metabolite landscape. Biol Open 2023; 12:bio059647. [PMID: 36848144 PMCID: PMC10084858 DOI: 10.1242/bio.059647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 02/21/2023] [Indexed: 03/01/2023] Open
Abstract
The eukaryotic translation initiation factor 5A1 (eIF5A1) and 5A2 (eIF5A2) are important proteins in a variety of physiological and pathophysiological processes and their function has been linked to neurodevelopmental disorders, cancer, and viral infections. Here, we report two new genome-edited mouse models, generated using a CRISPR-Cas9 approach, in which the amino acid residue lysine 50 is replaced with arginine 50 (K50R) in eIF5A1 or in the closely related eIF5A2 protein. This mutation prevents the spermidine-dependent post-translational formation of hypusine, a unique lysine derivative that is necessary for activation of eIF5A1 and eIF5A2. Mouse brain lysates from homozygous eif5a2-K50R mutant mice (eif5a2K50R/K50R) confirmed the absence of hypusine formation of eIF5A2, and metabolomic analysis of primary mouse dermal fibroblasts revealed significant alterations in the metabolite landscape compared to controls including increased levels of tryptophan, kyrunenine, pyridoxine, nicotinamide adenine dinucleotide, riboflavin, flavin adenine dinucleotide, pantothenate, and coenzyme A. Further supported by new publicly available bioinformatics data, these new mouse models represent excellent in vivo models to study hypusine-dependent biological processes, hypusination-related disorders caused by eIF5A1 and eIF5A2 gene aberrations or mRNA expression dysregulation, as well as several major human cancer types and potential therapies.
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Affiliation(s)
- Chad R. Schultz
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, USA
| | - Ryan D. Sheldon
- Core Technologies and Services, Mass Spectrometry Core, Van Andel Institute, Grand Rapids, MI 49503, USA
| | - Huirong Xie
- Transgenic and Genome Editing Facility, Institute for Quantitative Health Science and Engineering, Research Technology Support Facility, Michigan State University, East Lansing, MI 48824, USA
| | - Elena Y. Demireva
- Transgenic and Genome Editing Facility, Institute for Quantitative Health Science and Engineering, Research Technology Support Facility, Michigan State University, East Lansing, MI 48824, USA
| | - Katie L. Uhl
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, USA
| | - Dalen W. Agnew
- Department of Pathobiology & Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
| | - Dirk Geerts
- Department of Hematology, Amsterdam University Medical Center, Location VUMC, 1081 HV Amsterdam, The Netherlands
| | - André S. Bachmann
- Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, Grand Rapids, MI 49503, USA
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28
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Translational Control of Metabolism and Cell Cycle Progression in Hepatocellular Carcinoma. Int J Mol Sci 2023; 24:ijms24054885. [PMID: 36902316 PMCID: PMC10002961 DOI: 10.3390/ijms24054885] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023] Open
Abstract
The liver is a metabolic hub characterized by high levels of protein synthesis. Eukaryotic initiation factors, eIFs, control the first phase of translation, initiation. Initiation factors are essential for tumor progression and, since they regulate the translation of specific mRNAs downstream of oncogenic signaling cascades, may be druggable. In this review, we address the issue of whether the massive translational machinery of liver cells contributes to liver pathology and to the progression of hepatocellular carcinoma (HCC); it represents a valuable biomarker and druggable target. First, we observe that the common markers of HCC cells, such as phosphorylated ribosomal protein S6, belong to the ribosomal and translational apparatus. This fact is in agreement with observations that demonstrate a huge amplification of the ribosomal machinery during the progression to HCC. Some translation factors, such as eIF4E and eIF6, are then harnessed by oncogenic signaling. In particular, the action of eIF4E and eIF6 is particularly important in HCC when driven by fatty liver pathologies. Indeed, both eIF4E and eIF6 amplify at the translational level the production and accumulation of fatty acids. As it is evident that abnormal levels of these factors drive cancer, we discuss their therapeutic value.
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29
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Finney AC, Das S, Kumar D, McKinney MP, Cai B, Yurdagul A, Rom O. The interplay between nonalcoholic fatty liver disease and atherosclerotic cardiovascular disease. Front Cardiovasc Med 2023; 10:1116861. [PMID: 37200978 PMCID: PMC10185914 DOI: 10.3389/fcvm.2023.1116861] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/23/2023] [Indexed: 05/20/2023] Open
Abstract
Therapeutic approaches that lower circulating low-density lipoprotein (LDL)-cholesterol significantly reduced the burden of cardiovascular disease over the last decades. However, the persistent rise in the obesity epidemic is beginning to reverse this decline. Alongside obesity, the incidence of nonalcoholic fatty liver disease (NAFLD) has substantially increased in the last three decades. Currently, approximately one third of world population is affected by NAFLD. Notably, the presence of NAFLD and particularly its more severe form, nonalcoholic steatohepatitis (NASH), serves as an independent risk factor for atherosclerotic cardiovascular disease (ASCVD), thus, raising interest in the relationship between these two diseases. Importantly, ASCVD is the major cause of death in patients with NASH independent of traditional risk factors. Nevertheless, the pathophysiology linking NAFLD/NASH with ASCVD remains poorly understood. While dyslipidemia is a common risk factor underlying both diseases, therapies that lower circulating LDL-cholesterol are largely ineffective against NASH. While there are no approved pharmacological therapies for NASH, some of the most advanced drug candidates exacerbate atherogenic dyslipidemia, raising concerns regarding their adverse cardiovascular consequences. In this review, we address current gaps in our understanding of the mechanisms linking NAFLD/NASH and ASCVD, explore strategies to simultaneously model these diseases, evaluate emerging biomarkers that may be useful to diagnose the presence of both diseases, and discuss investigational approaches and ongoing clinical trials that potentially target both diseases.
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Affiliation(s)
- Alexandra C. Finney
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Shreveport, Shreveport, LA, United States
| | - Sandeep Das
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Shreveport, Shreveport, LA, United States
| | - Dhananjay Kumar
- Department of Molecular and Cellular Physiology, Louisiana State University Health Shreveport, Shreveport, LA, United States
| | - M. Peyton McKinney
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Shreveport, Shreveport, LA, United States
| | - Bishuang Cai
- Division of Liver Diseases, Department of Medicine, Icahn School of Medicine at Mount Sinai, NY, United States
| | - Arif Yurdagul
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Shreveport, Shreveport, LA, United States
- Department of Molecular and Cellular Physiology, Louisiana State University Health Shreveport, Shreveport, LA, United States
- Correspondence: Arif Yurdagul Oren Rom
| | - Oren Rom
- Department of Pathology and Translational Pathobiology, Louisiana State University Health Shreveport, Shreveport, LA, United States
- Department of Molecular and Cellular Physiology, Louisiana State University Health Shreveport, Shreveport, LA, United States
- Correspondence: Arif Yurdagul Oren Rom
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30
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Sfakianos AP, Raven RM, Willis AE. The pleiotropic roles of eIF5A in cellular life and its therapeutic potential in cancer. Biochem Soc Trans 2022; 50:1885-1895. [PMID: 36511302 PMCID: PMC9788402 DOI: 10.1042/bst20221035] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 11/19/2023]
Abstract
Protein synthesis is dysregulated in the majority of cancers and this process therefore provides a good therapeutic target. Many novel anti-cancer agents are directed to target the initiation stage of translation, however, translation elongation also holds great potential as a therapeutic target. The elongation factor eIF5A that assists the formation of peptidyl bonds during the elongation process is of considerable interest in this regard. Overexpression of eIF5A has been linked with the development of a variety of cancers and inhibitors of the molecule have been proposed for anti-cancer clinical applications. eIF5A is the only protein in the cell that contains the post-translational modification hypusine. Hypusination is a two-step enzymatic process catalysed by the Deoxyhypusine Synthase (DHPS) and Deoxyhypusine Hydroxylase (DOHH). In addition, eIF5A can be acetylated by p300/CBP-associated factor (PCAF) which leads to translocation of the protein to the nucleus and its deactivation. In addition to the nucleus, eIF5A has been found in the mitochondria and the endoplasmic reticulum (ER) with eIF5A localisation related to function from regulation of mitochondrial activity and apoptosis to maintenance of ER integrity and control of the unfolded protein response (UPR). Given the pleiotropic functions of eIF5A and by extension the hypusination enzymes, this system is being considered as a target for a range of cancers including multiple myeloma, B-Cell lymphoma, and neuroblastoma. In this review, we explore the role of eIF5A and discuss the therapeutic strategies that are currently developing both in the pre- and the clinical stage.
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Affiliation(s)
| | - Rebecca Mallory Raven
- MRC Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Rd, Cambridge, U.K
| | - Anne Elizabeth Willis
- MRC Toxicology Unit, University of Cambridge, Gleeson Building, Tennis Court Rd, Cambridge, U.K
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