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Yu Y, Jiang Y, Glandorff C, Sun M. Exploring the mystery of tumor metabolism: Warburg effect and mitochondrial metabolism fighting side by side. Cell Signal 2024; 120:111239. [PMID: 38815642 DOI: 10.1016/j.cellsig.2024.111239] [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: 05/06/2024] [Revised: 05/17/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
The metabolic reconfiguration of tumor cells constitutes a pivotal aspect of tumor proliferation and advancement. This study delves into two primary facets of tumor metabolism: the Warburg effect and mitochondrial metabolism, elucidating their contributions to tumor dominance. The Warburg effect facilitates efficient energy acquisition by tumor cells through aerobic glycolysis and lactic acid fermentation, offering metabolic advantages conducive to growth and proliferation. Simultaneously, mitochondrial metabolism, serving as the linchpin of sustained tumor vitality, orchestrates the tricarboxylic acid cycle and electron transport chain, furnishing a steadfast and dependable wellspring of biosynthesis for tumor cells. Regarding targeted therapy, this discourse examines extant strategies targeting tumor glycolysis and mitochondrial metabolism, underscoring their potential efficacy in modulating tumor metabolism while envisaging future research trajectories and treatment paradigms in the realm of tumor metabolism. By means of a thorough exploration of tumor metabolism, this study aspires to furnish crucial insights into the regulation of tumor metabolic processes, thereby furnishing valuable guidance for the development of novel therapeutic modalities. This comprehensive deliberation is poised to catalyze advancements in tumor metabolism research and offer novel perspectives and pathways for the formulation of cancer treatment strategies in the times ahead.
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Affiliation(s)
- Yongxin Yu
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yulang Jiang
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Christian Glandorff
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; University Clinic of Hamburg at the HanseMerkur Center of TCM, Hamburg, Germany
| | - Mingyu Sun
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China; Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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2
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Koltai T, Fliegel L. Dichloroacetate for Cancer Treatment: Some Facts and Many Doubts. Pharmaceuticals (Basel) 2024; 17:744. [PMID: 38931411 PMCID: PMC11206832 DOI: 10.3390/ph17060744] [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: 03/28/2024] [Revised: 05/23/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024] Open
Abstract
Rarely has a chemical elicited as much controversy as dichloroacetate (DCA). DCA was initially considered a dangerous toxic industrial waste product, then a potential treatment for lactic acidosis. However, the main controversies started in 2008 when DCA was found to have anti-cancer effects on experimental animals. These publications showed contradictory results in vivo and in vitro such that a thorough consideration of this compound's in cancer is merited. Despite 50 years of experimentation, DCA's future in therapeutics is uncertain. Without adequate clinical trials and health authorities' approval, DCA has been introduced in off-label cancer treatments in alternative medicine clinics in Canada, Germany, and other European countries. The lack of well-planned clinical trials and its use by people without medical training has discouraged consideration by the scientific community. There are few thorough clinical studies of DCA, and many publications are individual case reports. Case reports of DCA's benefits against cancer have been increasing recently. Furthermore, it has been shown that DCA synergizes with conventional treatments and other repurposable drugs. Beyond the classic DCA target, pyruvate dehydrogenase kinase, new target molecules have also been recently discovered. These findings have renewed interest in DCA. This paper explores whether existing evidence justifies further research on DCA for cancer treatment and it explores the role DCA may play in it.
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Affiliation(s)
- Tomas Koltai
- Hospital del Centro Gallego de Buenos Aires, Buenos Aires 2199, Argentina
| | - Larry Fliegel
- Department of Biochemistry, University Alberta, Edmonton, AB T6G 2H7, Canada;
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3
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Dai E, Wang W, Li Y, Ye D, Li Y. Lactate and lactylation: Behind the development of tumors. Cancer Lett 2024; 591:216896. [PMID: 38641309 DOI: 10.1016/j.canlet.2024.216896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/13/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
There is growing evidence that lactate can have a wide range of biological impacts in addition to being a waste product of metabolism. Because of the Warburg effect, tumors generate lots of lactate, which create a tumor microenvironment (TME) with low nutrition, hypoxia, and low pH. As a result, the immunosuppressive network is established to gain immune escape potential and regulate tumor growth. Consequently, the tumor lactate pathway is emerging as a possible therapeutic target for tumor. Importantly, Zhao et al. first discovered histone lysine lactylation (Kla) in 2019, which links gene regulation to cell metabolism through dysmetabolic activity and epigenetic modifications, influencing TME and tumor development. Therefore, the aim of this paper is to explore the effects of lactate and lactylation on the TME and tumors, and provide theoretical basis for further research on potential therapeutic targets and biomarkers, with the view to providing new ideas and methods for tumor treatment and prognosis evaluation.
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Affiliation(s)
- Enci Dai
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 650 Xinsongjiang Road, Shanghai, 201600, China.
| | - Wei Wang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 650 Xinsongjiang Road, Shanghai, 201600, China.
| | - Yingying Li
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 650 Xinsongjiang Road, Shanghai, 201600, China.
| | - Defeng Ye
- Department of Thoracic Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Hongkou District, Shanghai, 200080, China.
| | - Yanli Li
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 650 Xinsongjiang Road, Shanghai, 201600, China.
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4
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Tomar MS, Kumar A, Shrivastava A. Mitochondrial metabolism as a dynamic regulatory hub to malignant transformation and anti-cancer drug resistance. Biochem Biophys Res Commun 2024; 694:149382. [PMID: 38128382 DOI: 10.1016/j.bbrc.2023.149382] [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: 08/17/2023] [Revised: 12/02/2023] [Accepted: 12/11/2023] [Indexed: 12/23/2023]
Abstract
Glycolysis is the fundamental cellular process that permits cancer cells to convert energy and grow anaerobically. Recent developments in molecular biology have made it evident that mitochondrial respiration is critical to tumor growth and treatment response. As the principal organelle of cellular energy conversion, mitochondria can rapidly alter cellular metabolic processes, thereby fueling malignancies and contributing to treatment resistance. This review emphasizes the significance of mitochondrial biogenesis, turnover, DNA copy number, and mutations in bioenergetic system regulation. Tumorigenesis requires an intricate cascade of metabolic pathways that includes rewiring of the tricarboxylic acid (TCA) cycle, electron transport chain and oxidative phosphorylation, supply of intermediate metabolites of the TCA cycle through amino acids, and the interaction between mitochondria and lipid metabolism. Cancer recurrence or resistance to therapy often results from the cooperation of several cellular defense mechanisms, most of which are connected to mitochondria. Many clinical trials are underway to assess the effectiveness of inhibiting mitochondrial respiration as a potential cancer therapeutic. We aim to summarize innovative strategies and therapeutic targets by conducting a comprehensive review of recent studies on the relationship between mitochondrial metabolism, tumor development and therapeutic resistance.
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Affiliation(s)
- Manendra Singh Tomar
- Center for Advance Research, Faculty of Medicine, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
| | - Ashok Kumar
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS) Bhopal, Saket Nagar, Bhopal, 462020, Madhya Pradesh, India
| | - Ashutosh Shrivastava
- Center for Advance Research, Faculty of Medicine, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India.
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5
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Huo H, Bao H. Comparative study on the anti-tumor effect of steroids derived from different organisms in H22 tumor-bearing mice and analysis of their mechanisms. Eur J Pharmacol 2024; 963:176269. [PMID: 38096966 DOI: 10.1016/j.ejphar.2023.176269] [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: 08/31/2023] [Revised: 11/30/2023] [Accepted: 12/07/2023] [Indexed: 12/18/2023]
Abstract
This study aimed to comparatively investigate the anti-tumor mechanisms of steroids including ergosterol, β-sitosterol, cholesterol, and fucosterol. The model of H22 tumor-bearing mice was constructed based on histopathological data and biochemical parameters, while serums were subjected to metabolomics analysis to study the potential anti-tumor mechanisms. The results indicated that the four steroids exhibited different degrees of anti-tumor effects on H22 mice. The tumor inhibition rates were 63.25% for ergosterol, 56.41% for β-sitosterol, 61.54% for cholesterol, and 72.65% for fucosterol. Metabolomic analyses revealed that 87, 71, and 129 differential metabolites were identified in ergosterol, cholesterol, and fucosterol treatment groups, respectively. The fucosterol treatment group had the highest number of differential metabolites. At the same time, it mainly inhibited purine and amino acid metabolism to exert anti-tumor effects. Ergosterol enhanced immunity and affected pyruvate metabolism, and cholesterol inhibited purine metabolism. The chemical structure difference among ergosterol, cholesterol, and fucosterol is mainly at the number and position of sterol double bonds and the number and length of side chain carbons. Therefore, there is a structure-activity relationship between the structure of steroid compounds and their efficacy. This study provides a key foundation for the exploitation of the anti-tumor effects of steroids derived from different organisms.
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Affiliation(s)
- Huimin Huo
- College of Traditional Chinese Materia Medica & Key Research Laboratory for the Development and Utilization of Fungi Traditional Chinese Medicine Resources, Jilin Agricultural University, Changchun, 130118, China; Key Laboratory of Edible Fungi Resources and Utilization, Ministry of Agriculture and Rural Affairs, Jilin Agricultural University, Changchun, Jilin, 130118, China.
| | - Haiying Bao
- College of Traditional Chinese Materia Medica & Key Research Laboratory for the Development and Utilization of Fungi Traditional Chinese Medicine Resources, Jilin Agricultural University, Changchun, 130118, China; Key Laboratory of Edible Fungi Resources and Utilization, Ministry of Agriculture and Rural Affairs, Jilin Agricultural University, Changchun, Jilin, 130118, China.
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6
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Zhou T, Zhong Y, Zhang Y, Zhou Y. Pyruvate Dehydrogenase Complex in Neonatal Hypoxic-Ischemic Brain Injury. ACS Pharmacol Transl Sci 2024; 7:42-47. [PMID: 38230287 PMCID: PMC10789137 DOI: 10.1021/acsptsci.3c00191] [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: 08/17/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 01/18/2024]
Abstract
The disruption of cerebral energy metabolism in relation to brain damage has been the subject of extensive research. However, the pyruvate dehydrogenase complex (PDHC), which is primarily characterized by poor cerebral energy metabolism following brain trauma, has received relatively little study in comparison to newborn hypoxic-ischemic brain injury. Mitochondrial PDHC, a multienzyme complex that functions as a crucial hub in energy metabolism and acts as a central metabolic node to mediate pyruvate oxidation after glycolysis and fuel the Krebs cycle to meet energy demands, has been reported to be one cause of energy metabolism dysfunction according to recent studies. Here we assess the potential mechanisms of neonatal hypoxic-ischemic brain injury-related brain dysfunction mediated by PDHC and further discuss the neuroprotective effects of therapeutic medicines that target PDHC activation. We also provide a summary of recent research on medicines that target PDHC in neonates with hypoxic-ischemic brain damage. Through an understanding of the mechanisms by which it is modulated and an investigation of the neuroprotective techniques available to activate brain PDHC and improve neonatal hypoxic-ischemic impairment, our review emphasizes the significance of PDHC impairment in neonatal hypoxic-ischemic brain injury.
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Affiliation(s)
- Tao Zhou
- Department
of Pharmaceutical and Medical Equipment, Rongtong Bayi Orthopedic Hospital of China, Chengdu 610031, China
| | - Yuangao Zhong
- Department
of Pharmaceutical Preparation Rongtong Bayi Orthopedic Hospital Of
China, Chengdu 610031, China
| | - Yong Zhang
- Department
of Pharmaceutical Preparation Rongtong Bayi Orthopedic Hospital Of
China, Chengdu 610031, China
| | - Yue Zhou
- Department
of Pharmacy, Xindu District People’s
Hospital of Chengdu, Chengdu 610500, China
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7
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Mazurakova A, Koklesova L, Csizmár SH, Samec M, Brockmueller A, Šudomová M, Biringer K, Kudela E, Pec M, Samuel SM, Kassayova M, Hassan STS, Smejkal K, Shakibaei M, Büsselberg D, Saso L, Kubatka P, Golubnitschaja O. Significance of flavonoids targeting PI3K/Akt/HIF-1α signaling pathway in therapy-resistant cancer cells - A potential contribution to the predictive, preventive, and personalized medicine. J Adv Res 2024; 55:103-118. [PMID: 36871616 PMCID: PMC10770105 DOI: 10.1016/j.jare.2023.02.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023] Open
Abstract
BACKGROUND Cancer management faces multiple obstacles, including resistance to current therapeutic approaches. In the face of challenging microenvironments, cancer cells adapt metabolically to maintain their supply of energy and precursor molecules for biosynthesis and thus sustain rapid proliferation and tumor growth. Among the various metabolic adaptations observed in cancer cells, the altered glucose metabolism is the most widely studied. The aberrant glycolytic modification in cancer cells has been associated with rapid cell division, tumor growth, cancer progression, and drug resistance. The higher rates of glycolysis in cancer cells, as a hallmark of cancer progression, is modulated by the transcription factor hypoxia inducible factor 1 alpha (HIF-1α), a downstream target of the PI3K/Akt signaling, the most deregulated pathway in cancer. AIM OF REVIEW We provide a detailed overview of current, primarily experimental, evidence on the potential effectiveness of flavonoids to combat aberrant glycolysis-induced resistance of cancer cells to conventional and targeted therapies. The manuscript focuses primarily on flavonoids reducing cancer resistance via affecting PI3K/Akt, HIF-1α (as the transcription factor critical for glucose metabolism of cancer cells that is regulated by PI3K/Akt pathway), and key glycolytic mediators downstream of PI3K/Akt/HIF-1α signaling (glucose transporters and key glycolytic enzymes). KEY SCIENTIFIC CONCEPTS OF REVIEW The working hypothesis of the manuscript proposes HIF-1α - the transcription factor critical for glucose metabolism of cancer cells regulated by PI3K/Akt pathway as an attractive target for application of flavonoids to mitigate cancer resistance. Phytochemicals represent a source of promising substances for cancer management applicable to primary, secondary, and tertiary care. However, accurate patient stratification and individualized patient profiling represent crucial steps in the paradigm shift from reactive to predictive, preventive, and personalized medicine (PPPM / 3PM). The article is focused on targeting molecular patterns by natural substances and provides evidence-based recommendations for the 3PM relevant implementation.
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Affiliation(s)
- Alena Mazurakova
- Department of Anatomy, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01, Martin, Slovakia.
| | - Lenka Koklesova
- Clinic of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01, Martin, Slovakia
| | - Sandra Hurta Csizmár
- Department of Histology and Embryology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01, Martin, Slovakia
| | - Marek Samec
- Department of Pathological Physiology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01 Martin, Slovakia
| | - Aranka Brockmueller
- Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilians-University Munich, Pettenkoferstr. 11, D-80336 Munich, Germany
| | - Miroslava Šudomová
- Museum of Literature in Moravia, Klášter 1, 66461 Rajhrad, Czech Republic
| | - Kamil Biringer
- Clinic of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01, Martin, Slovakia
| | - Erik Kudela
- Clinic of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01, Martin, Slovakia
| | - Martin Pec
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01, Martin, Slovakia
| | - Samson Mathews Samuel
- Department of Physiology and Biophysics, Weill Cornell Medicine in Qatar, Education City, Qatar Foundation, 24144, Doha, Qatar
| | - Monika Kassayova
- Department of Animal Physiology, Institute of Biology and Ecology, Faculty of Science, P. J. Safarik University, 04001 Kosice, Slovakia
| | - Sherif T S Hassan
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic
| | - Karel Smejkal
- Department of Natural Drugs, Faculty of Pharmacy, Masaryk University, 61242 Brno, Czech Republic
| | - Mehdi Shakibaei
- Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Ludwig-Maximilians-University Munich, Pettenkoferstr. 11, D-80336 Munich, Germany
| | - Dietrich Büsselberg
- Department of Physiology and Biophysics, Weill Cornell Medicine in Qatar, Education City, Qatar Foundation, 24144, Doha, Qatar
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University, P.le Aldo Moro 5, 00185, Rome, Italy
| | - Peter Kubatka
- Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University in Bratislava, 036 01, Martin, Slovakia.
| | - Olga Golubnitschaja
- Predictive, Preventive and Personalised (3P) Medicine, Department of Radiation Oncology, University Hospital Bonn, Rheinische Friedrich-Wilhelms-Universität Bonn, 53127, Bonn, Germany.
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8
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Szabo E, Nagy B, Czajlik A, Komlodi T, Ozohanics O, Tretter L, Ambrus A. Mitochondrial Alpha-Keto Acid Dehydrogenase Complexes: Recent Developments on Structure and Function in Health and Disease. Subcell Biochem 2024; 104:295-381. [PMID: 38963492 DOI: 10.1007/978-3-031-58843-3_13] [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] [Indexed: 07/05/2024]
Abstract
The present work delves into the enigmatic world of mitochondrial alpha-keto acid dehydrogenase complexes discussing their metabolic significance, enzymatic operation, moonlighting activities, and pathological relevance with links to underlying structural features. This ubiquitous family of related but diverse multienzyme complexes is involved in carbohydrate metabolism (pyruvate dehydrogenase complex), the citric acid cycle (α-ketoglutarate dehydrogenase complex), and amino acid catabolism (branched-chain α-keto acid dehydrogenase complex, α-ketoadipate dehydrogenase complex); the complexes all function at strategic points and also participate in regulation in these metabolic pathways. These systems are among the largest multienzyme complexes with at times more than 100 protein chains and weights ranging up to ~10 million Daltons. Our chapter offers a wealth of up-to-date information on these multienzyme complexes for a comprehensive understanding of their significance in health and disease.
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Affiliation(s)
- Eszter Szabo
- Department of Biochemistry, Semmelweis University, Budapest, Hungary
| | - Balint Nagy
- Department of Biochemistry, Semmelweis University, Budapest, Hungary
| | - Andras Czajlik
- Department of Biochemistry, Semmelweis University, Budapest, Hungary
| | - Timea Komlodi
- Department of Biochemistry, Semmelweis University, Budapest, Hungary
| | - Oliver Ozohanics
- Department of Biochemistry, Semmelweis University, Budapest, Hungary
| | - Laszlo Tretter
- Department of Biochemistry, Semmelweis University, Budapest, Hungary
| | - Attila Ambrus
- Department of Biochemistry, Semmelweis University, Budapest, Hungary.
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9
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Li C, Liu C, Zhang J, Lu Y, Jiang B, Xiong H, Li C. Pyruvate dehydrogenase kinase regulates macrophage polarization in metabolic and inflammatory diseases. Front Immunol 2023; 14:1296687. [PMID: 38193078 PMCID: PMC10773690 DOI: 10.3389/fimmu.2023.1296687] [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: 09/19/2023] [Accepted: 11/13/2023] [Indexed: 01/10/2024] Open
Abstract
Macrophages are highly heterogeneous and plastic, and have two main polarized phenotypes that are determined by their microenvironment, namely pro- and anti-inflammatory macrophages. Activation of pro-inflammatory macrophages is closely associated with metabolic reprogramming, especially that of aerobic glycolysis. Mitochondrial pyruvate dehydrogenase kinase (PDK) negatively regulates pyruvate dehydrogenase complex activity through reversible phosphorylation and further links glycolysis to the tricarboxylic acid cycle and ATP production. PDK is commonly associated with the metabolism and polarization of macrophages in metabolic and inflammatory diseases. This review examines the relationship between PDK and macrophage metabolism and discusses the mechanisms by which PDK regulates macrophage polarization, migration, and inflammatory cytokine secretion in metabolic and inflammatory diseases. Elucidating the relationships between the metabolism and polarization of macrophages under physiological and pathological conditions, as well as the regulatory pathways involved, may provide valuable insights into the etiology and treatment of macrophage-mediated inflammatory diseases.
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Affiliation(s)
- Chenyu Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, Shandong, China
| | - Chuanbin Liu
- Department of Pediatric Dentistry, Jining Stomatological Hospital, Jining, Shandong, China
| | - Junfeng Zhang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, Shandong, China
| | - Yanyu Lu
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, Shandong, China
| | - Bingtong Jiang
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, Shandong, China
| | - Huabao Xiong
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, Shandong, China
| | - Chunxia Li
- Institute of Immunology and Molecular Medicine, Jining Medical University, Jining, Shandong, China
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10
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Maraqah H, Aboubechara JP, Abu-Asab M, Lee HS, Aboud O. Excessive Lipid Production Shapes Glioma Tumor Microenvironment. RESEARCH SQUARE 2023:rs.3.rs-3694185. [PMID: 38168422 PMCID: PMC10760230 DOI: 10.21203/rs.3.rs-3694185/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Disrupted lipid metabolism is a characteristic of gliomas. This study utilizes an ultrastructural approach to characterize the prevalence and distribution of lipids within gliomas. This study made use of tissue from IDH1 wild type (IDH1-wt) glioblastoma (n = 18) and IDH1 mutant (IDH1-mt) astrocytoma (n = 12) tumors. We uncover a prevalent and intriguing surplus of lipids. The bulk of the lipids manifested as sizable cytoplasmic inclusions and extracellular deposits in the tumor microenvironment (TME); in some tumors the lipids were stored in the classical membraneless spheroidal lipid droplets (LDs). Frequently, lipids accumulated inside mitochondria, suggesting possible dysfunction of the beta-oxidation pathway. Additionally, the tumor vasculature have lipid deposits in their lumen and vessel walls; this lipid could have shifted in from the tumor microenvironment or have been produced by the vessel-invading tumor cells. Lipid excess in gliomas stems from disrupted beta-oxidation and dysfunctional oxidative phosphorylation pathways. The implications of this lipid-driven environment include structural support for the tumor cells and protection against immune responses, non-lipophilic drugs, and free radicals.
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11
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Guo Z, Zhang Y, Huang A, Ni Q, Zeng C. Phenylbutyrate and Dichloroacetate Enhance the Liquid-Stored Boar Sperm Quality via PDK1 and PDK3. Int J Mol Sci 2023; 24:17091. [PMID: 38069413 PMCID: PMC10707026 DOI: 10.3390/ijms242317091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/30/2023] [Accepted: 12/02/2023] [Indexed: 12/18/2023] Open
Abstract
Artificial insemination (AI) with liquid-stored semen is the most prevalent and efficient assisted reproduction technique in the modern pork industry. Pyruvate dehydrogenase complex component X (PDHX) was demonstrated to be associated with sperm metabolism and affected the boar sperm viability, motility, and fertility. Pyruvate Dehydrogenase Kinases (PDKs) are the key metabolic enzymes that regulate pyruvate dehydrogenase complex (PDHC) activity and also the conversion from glycolysis to oxidative phosphorylation. In the present study, two PDK inhibitors, Dichloroacetate (DCA) and Phenylbutyrate (4-PBA), were added to an extender and investigated to determine their regulatory roles in liquid-stored boar sperm at 17 °C. The results indicated that PDK1 and PDK3 were predominantly located at the head and flagella of the boar sperm. The addition of 2 mM DCA and 0.5 mM 4-PBA significantly enhanced the sperm motility, plasma membrane integrity (PMI), mitochondrial membrane potential (MMP), and ATP content. In addition, DCA and 4-PBA exerted their effects by inhibiting PDK1 and PDK3, respectively. In conclusion, DCA and 4-PBA were found to regulate the boar sperm metabolic activities via PDK1 and PDK3. These both can improve the quality parameters of liquid-stored boar sperm, which will help to improve and optimize liquid-stored boar semen after their addition in the extender.
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Affiliation(s)
- Zhihua Guo
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China; (Z.G.); (Y.Z.); (Q.N.)
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
| | - Yan Zhang
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China; (Z.G.); (Y.Z.); (Q.N.)
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
| | - Anqi Huang
- College of Life Science, Sichuan Agricultural University, Ya’an 625014, China;
| | - Qingyong Ni
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China; (Z.G.); (Y.Z.); (Q.N.)
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
| | - Changjun Zeng
- State Key Laboratory of Swine and Poultry Breeding Industry, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China; (Z.G.); (Y.Z.); (Q.N.)
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611134, China
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12
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Zhou Y, Guo Y, Ran M, Shan W, Granchi C, Giovannetti E, Minutolo F, Peters GJ, Tam KY. Combined inhibition of pyruvate dehydrogenase kinase 1 and lactate dehydrogenase a induces metabolic and signaling reprogramming and enhances lung adenocarcinoma cell killing. Cancer Lett 2023; 577:216425. [PMID: 37805163 DOI: 10.1016/j.canlet.2023.216425] [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: 07/04/2023] [Revised: 08/27/2023] [Accepted: 09/29/2023] [Indexed: 10/09/2023]
Abstract
Lung adenocarcinoma (LUAD) is one of the most prevalent and aggressive types of lung cancer. Metabolic reprogramming plays a critical role in the development and progression of LUAD. Pyruvate dehydrogenase kinase 1 (PDK1) and lactate dehydrogenase A (LDHA) are two key enzymes involved in glucose metabolism, whilst their aberrant expressions are often associated with tumorigenesis. Herein, we investigated the anticancer effects of combined inhibition of PDK1 and LDHA in LUAD in vitro and in vivo and its underlying mechanisms of action. The combination of a PDK1 inhibitor, 64, and a LDHA inhibitor, NHI-Glc-2, led to a synergistic growth inhibition in 3 different LUAD cell lines and more than additively suppressed tumor growth in the LUAD xenograft H1975 model. This combination also inhibited cellular migration and colony formation, while it induced a metabolic shift from glycolysis to oxidative phosphorylation (OXPHOS) resulting in mitochondrial depolarization and apoptosis in LUAD cells. These effects were related to modulation of multiple cell signaling pathways, including AMPK, RAS/ERK, and AKT/mTOR. Our findings demonstrate that simultaneous inhibition of multiple glycolytic enzymes (PDK1 and LDHA) is a promising novel therapeutic approach for LUAD.
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Affiliation(s)
- Yan Zhou
- Faculty of Health Sciences, University of Macau, Taipa, Macau
| | - Yizhen Guo
- Faculty of Health Sciences, University of Macau, Taipa, Macau
| | - Maoxin Ran
- Faculty of Health Sciences, University of Macau, Taipa, Macau
| | - Wenying Shan
- Faculty of Health Sciences, University of Macau, Taipa, Macau
| | - Carlotta Granchi
- Dipartimento di Farmacia, Università di Pisa, 56126, Pisa, Italy
| | - Elisa Giovannetti
- Department of Medical Oncology, Amsterdam University Medical Centers, Location VUmc, Cancer Center Amsterdam, 1081, HV Amsterdam, the Netherlands; Fondazione Pisana per La Scienza, Pisa, Italy
| | - Filippo Minutolo
- Dipartimento di Farmacia, Università di Pisa, 56126, Pisa, Italy
| | - Godefridus J Peters
- Department of Biochemistry, Medical University of Gdansk, 80-210, Gdańsk, Poland; Department of Medical Oncology, Amsterdam University Medical Centers, Location VUmc, Cancer Center Amsterdam, 1081, HV Amsterdam, the Netherlands
| | - Kin Yip Tam
- Faculty of Health Sciences, University of Macau, Taipa, Macau.
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13
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Sheng N, Zhang Z, Zheng H, Ma C, Li M, Wang Z, Wang L, Jiang J, Zhang J. Scutellarin Rescued Mitochondrial Damage through Ameliorating Mitochondrial Glucose Oxidation via the Pdk-Pdc Axis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303584. [PMID: 37750289 PMCID: PMC10646256 DOI: 10.1002/advs.202303584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/01/2023] [Indexed: 09/27/2023]
Abstract
Mitochondrial bioenergetic deficits and their resulting glucose hypometabolism are the key pathophysiological modulators that promote neurodegeneration. However, there are no specific potential molecules that have been identified to treat neurological diseases by regulating energy metabolism and repairing mitochondrial damage. Pyruvate dehydrogenase (PDH) complex (PDC), which can be phosphorylated by pyruvate dehydrogenase kinase (PDK), is the gate-keeping enzyme for mitochondrial glucose oxidation. In this study, a small-molecule scutellarin (SG) is discovered that can significantly alleviate the neuropathological changes in hippocampal CA1 of cerebral hypoperfusion model rats, rescued the morphological changes of abnormal mitochondria, and restored mitochondrial homeostasis. Mitochondrial proteomics, energy metabolism monitoring, and 13 C-metabolic flux analysis targeted SG activity on PDK2, thus regulating PDK-PDC-mediated glycolytic metabolism to TCA cycle during mitochondrial OXPHOS damage. The knockdown of PDK2 in the SK-N-SH cells validated that SG could rescue mitochondrial damage via the PDK-PDC axis, promote the MMP level and reduce the mitochondria-dependent apoptosis. Collectively, this study explored the novel therapeutic approach: the PDK-PDC axis for neurological injury and cognitive impairment and uncovered the effect of SG on mitochondrial protection via the PDK-PDC axis and mitochondrial glucose oxidation. The findings indicate that active components ameliorating mitochondrial bioenergetic deficits could be of significant value for neurological disease therapy.
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Affiliation(s)
- Ning Sheng
- State Key Laboratory of Bioactive Substance and Function of Natural MedicinesInstitute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
| | - Zhihui Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural MedicinesInstitute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
| | - Hao Zheng
- State Key Laboratory of Bioactive Substance and Function of Natural MedicinesInstitute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
| | - Congyu Ma
- State Key Laboratory of Bioactive Substance and Function of Natural MedicinesInstitute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
| | - Menglin Li
- State Key Laboratory of Bioactive Substance and Function of Natural MedicinesInstitute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
| | - Zhe Wang
- State Key Laboratory of Bioactive Substance and Function of Natural MedicinesInstitute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
| | - Lulu Wang
- Institute of Medicinal BiotechnologyChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
| | - Jiandong Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural MedicinesInstitute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
- Institute of Medicinal BiotechnologyChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
| | - Jinlan Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural MedicinesInstitute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing100050China
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14
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Cimmino TP, Pagano E, Stornaiuolo M, Esposito G, Ammendola R, Cattaneo F. Formyl-peptide receptor 2 signalling triggers aerobic metabolism of glucose through Nox2-dependent modulation of pyruvate dehydrogenase activity. Open Biol 2023; 13:230336. [PMID: 37875162 PMCID: PMC10597678 DOI: 10.1098/rsob.230336] [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: 09/13/2023] [Accepted: 09/20/2023] [Indexed: 10/26/2023] Open
Abstract
The human formyl-peptide receptor 2 (FPR2) is activated by an array of ligands. By phospho-proteomic analysis we proved that FPR2 stimulation induces redox-regulated phosphorylation of many proteins involved in cellular metabolic processes. In this study, we investigated metabolic pathways activated in FPR2-stimulated CaLu-6 cells. The results showed an increased concentration of metabolites involved in glucose metabolism, and an enhanced uptake of glucose mediated by GLUT4, the insulin-regulated member of GLUT family. Accordingly, we observed that FPR2 transactivated IGF-IRβ/IRβ through a molecular mechanism that requires Nox2 activity. Since cancer cells support their metabolism via glycolysis, we analysed glucose oxidation and proved that FPR2 signalling promoted kinase activity of the bifunctional enzyme PFKFB2 through FGFR1/FRS2- and Akt-dependent phosphorylation. Furthermore, FPR2 stimulation induced IGF-IRβ/IRβ-, PI3K/Akt- and Nox-dependent inhibition of pyruvate dehydrogenase activity, thus preventing the entry of pyruvate in the tricarboxylic acid cycle. Consequently, we observed an enhanced FGFR-dependent lactate dehydrogenase (LDH) activity and lactate production in FPR2-stimulated cells. As LDH expression is transcriptionally regulated by c-Myc and HIF-1, we demonstrated that FPR2 signalling promoted c-Myc phosphorylation and Nox-dependent HIF-1α stabilization. These results strongly indicate that FPR2-dependent signalling can be explored as a new therapeutic target in treatment of human cancers.
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Affiliation(s)
- Tiziana Pecchillo Cimmino
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Ester Pagano
- Department of Pharmacy, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Mariano Stornaiuolo
- Department of Pharmacy, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Gabriella Esposito
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Rosario Ammendola
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Fabio Cattaneo
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
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15
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Xiong H, Zheng Z, Zhao C, Zhao M, Wang Q, Zhang P, Li Y, Zhu Y, Zhu S, Li J. Insight into the underlying molecular mechanism of dilated cardiomyopathy through integrative analysis of data mining, iTRAQ-PRM proteomics and bioinformatics. Proteome Sci 2023; 21:13. [PMID: 37740197 PMCID: PMC10517512 DOI: 10.1186/s12953-023-00214-9] [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: 05/05/2023] [Accepted: 08/28/2023] [Indexed: 09/24/2023] Open
Abstract
BACKGROUND DCM is a common cardiomyopathy worldwide, which is characterized by ventricular dilatation and systolic dysfunction. DCM is one of the most widespread diseases contributing to sudden death and heart failure. However, our understanding of its molecular mechanisms is limited because of its etiology and underlying mechanisms. Hence, this study explored the underlying molecular mechanism of dilated cardiomyopathy through integrative analysis of data mining, iTRAQ-PRM proteomics and bioinformatics METHODS: DCM target genes were downloaded from the public databases. Next, DCM was induced in 20 rats by 8 weeks doxorubicin treatment (2.5 mg/kg/week). We applied isobaric tags for a relative and absolute quantification (iTRAQ) coupled with proteomics approach to identify differentially expressed proteins (DEPs) in myocardial tissue. After association analysis of the DEPs and the key target genes, subsequent analyses, including functional annotation, pathway enrichment, validation, were performed. RESULTS Nine hundred thirty-five genes were identified as key target genes from public databases. Meanwhile, a total of 782 DEPs, including 348 up-regulated and 434 down-regulated proteins, were identified in our animal experiment. The functional annotation of these DEPs revealed complicated molecular mechanisms including TCA cycle, Oxidative phosphorylation, Cardiac muscle contraction. Moreover, the DEPs were analyzed for association with the key target genes screened in the public dataset. We further determined the importance of these three pathways. CONCLUSION Our results demonstrate that TCA cycle, Oxidative phosphorylation, Cardiac muscle contraction played important roles in the detailed molecular mechanisms of DCM.
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Affiliation(s)
- Hongli Xiong
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Zhe Zheng
- Department of Forensic Medicine, Henan University of Science and Technology, Luoyang, 471023, Henan, China
| | - Congcong Zhao
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Minzhu Zhao
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Qi Wang
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Peng Zhang
- Department of Forensic Medicine, Hainan Medical University, Haikou, 571100, China
| | - Yongguo Li
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Ying Zhu
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China
| | - Shisheng Zhu
- Faculty of Basic Medical Sciences, Chongqing Medical and Pharmaceutical College, Chongqing, 401331, China.
| | - Jianbo Li
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing, 400016, China.
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16
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Boutagy NE, Fowler JW, Grabinska KA, Cardone R, Sun Q, Vazquez KR, Whalen MB, Zhu X, Chakraborty R, Martin KA, Simons M, Romanoski CE, Kibbey RG, Sessa WC. TNFα increases the degradation of pyruvate dehydrogenase kinase 4 by the Lon protease to support proinflammatory genes. Proc Natl Acad Sci U S A 2023; 120:e2218150120. [PMID: 37695914 PMCID: PMC10515159 DOI: 10.1073/pnas.2218150120] [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: 10/31/2022] [Accepted: 08/07/2023] [Indexed: 09/13/2023] Open
Abstract
The endothelium is a major target of the proinflammatory cytokine, tumor necrosis factor alpha (TNFα). Exposure of endothelial cells (EC) to proinflammatory stimuli leads to an increase in mitochondrial metabolism; however, the function and regulation of elevated mitochondrial metabolism in EC in response to proinflammatory cytokines remain unclear. Studies using high-resolution metabolomics and 13C-glucose and 13C-glutamine labeling flux techniques showed that pyruvate dehydrogenase activity (PDH) and oxidative tricarboxylic acid cycle (TCA) flux are elevated in human umbilical vein ECs in response to overnight (16 h) treatment with TNFα (10 ng/mL). Mechanistic studies indicated that TNFα mediated these metabolic changes via mitochondrial-specific protein degradation of pyruvate dehydrogenase kinase 4 (PDK4, inhibitor of PDH) by the Lon protease via an NF-κB-dependent mechanism. Using RNA sequencing following siRNA-mediated knockdown of the catalytically active subunit of PDH, PDHE1α (PDHA1 gene), we show that PDH flux controls the transcription of approximately one-third of the genes that are up-regulated by TNFα stimulation. Notably, TNFα-induced PDH flux regulates a unique signature of proinflammatory mediators (cytokines and chemokines) but not inducible adhesion molecules. Metabolomics and ChIP sequencing for acetylated modification on lysine 27 of histone 3 (H3K27ac) showed that TNFα-induced PDH flux promotes histone acetylation of specific gene loci via citrate accumulation and ATP-citrate lyase-mediated generation of acetyl CoA. Together, these results uncover a mechanism by which TNFα signaling increases oxidative TCA flux of glucose to support TNFα-induced gene transcription through extramitochondrial acetyl CoA generation and histone acetylation.
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Affiliation(s)
- Nabil E Boutagy
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520
| | - Joseph W Fowler
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520
| | - Kariona A Grabinska
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520
| | - Rebecca Cardone
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520
- Department Cellular & Molecular Physiology, Yale University School of Medicine, New Haven, CT 06520
| | - Qiushi Sun
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520
- Department Cellular & Molecular Physiology, Yale University School of Medicine, New Haven, CT 06520
| | - Kyla R Vazquez
- Department of Cellular & Molecular Medicine, Bioscience Research Laboratories, University of Arizona, College of Medicine, Tucson, AZ 85724
| | - Michael B Whalen
- Department of Cellular & Molecular Medicine, Bioscience Research Laboratories, University of Arizona, College of Medicine, Tucson, AZ 85724
| | - Xiaolong Zhu
- Department of Cardiology, Yale University School of Medicine, New Haven, CT 06520
| | - Raja Chakraborty
- Department of Cardiology, Yale University School of Medicine, New Haven, CT 06520
| | - Kathleen A Martin
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520
- Department of Cardiology, Yale University School of Medicine, New Haven, CT 06520
| | - Michael Simons
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520
- Department of Cardiology, Yale University School of Medicine, New Haven, CT 06520
| | - Casey E Romanoski
- Department of Cardiology, Yale University School of Medicine, New Haven, CT 06520
| | - Richard G Kibbey
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT 06520
- Department Cellular & Molecular Physiology, Yale University School of Medicine, New Haven, CT 06520
| | - William C Sessa
- Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520
- Vascular Biology and Therapeutics Program, Yale University School of Medicine, New Haven, CT 06520
- Department of Cardiology, Yale University School of Medicine, New Haven, CT 06520
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17
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Garbarino O, Valenti GE, Monteleone L, Pietra G, Mingari MC, Benzi A, Bruzzone S, Ravera S, Leardi R, Farinini E, Vernazza S, Grottoli M, Marengo B, Domenicotti C. PLX4032 resistance of patient-derived melanoma cells: crucial role of oxidative metabolism. Front Oncol 2023; 13:1210130. [PMID: 37534247 PMCID: PMC10391174 DOI: 10.3389/fonc.2023.1210130] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/03/2023] [Indexed: 08/04/2023] Open
Abstract
Background Malignant melanoma is the most lethal form of skin cancer which shows BRAF mutation in 50% of patients. In this context, the identification of BRAFV600E mutation led to the development of specific inhibitors like PLX4032. Nevertheless, although its initial success, its clinical efficacy is reduced after six-months of therapy leading to cancer relapse due to the onset of drug resistance. Therefore, investigating the mechanisms underlying PLX4032 resistance is fundamental to improve therapy efficacy. In this context, several models of PLX4032 resistance have been developed, but the discrepancy between in vitro and in vivo results often limits their clinical translation. Methods The herein reported model has been realized by treating with PLX4032, for six months, patient-derived BRAF-mutated melanoma cells in order to obtain a reliable model of acquired PLX4032 resistance that could be predictive of patient's treatment responses. Metabolic analyses were performed by evaluating glucose consumption, ATP synthesis, oxygen consumption rate, P/O ratio, ATP/AMP ratio, lactate release, lactate dehydrogenase activity, NAD+/NADH ratio and pyruvate dehydrogenase activity in parental and drug resistant melanoma cells. The intracellular oxidative state was analyzed in terms of reactive oxygen species production, glutathione levels and NADPH/NADP+ ratio. In addition, a principal component analysis was conducted in order to identify the variables responsible for the acquisition of targeted therapy resistance. Results Collectively, our results demonstrate, for the first time in patient-derived melanoma cells, that the rewiring of oxidative phosphorylation and the maintenance of pyruvate dehydrogenase activity and of high glutathione levels contribute to trigger the onset of PLX4032 resistance. Conclusion Therefore, it is possible to hypothesize that inhibitors of glutathione biosynthesis and/or pyruvate dehydrogenase activity could be used in combination with PLX4032 to overcome drug resistance of BRAF-mutated melanoma patients. However, the identification of new adjuvant targets related to drug-induced metabolic reprogramming could be crucial to counteract the failure of targeted therapy in metastatic melanoma.
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Affiliation(s)
- Ombretta Garbarino
- Department of Experimental Medicine, General Pathology Section, University of Genoa, Genoa, Italy
| | - Giulia Elda Valenti
- Department of Experimental Medicine, General Pathology Section, University of Genoa, Genoa, Italy
| | - Lorenzo Monteleone
- Department of Experimental Medicine, General Pathology Section, University of Genoa, Genoa, Italy
| | - Gabriella Pietra
- Department of Experimental Medicine, General Pathology Section, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Maria Cristina Mingari
- Department of Experimental Medicine, General Pathology Section, University of Genoa, Genoa, Italy
- IRCCS Ospedale Policlinico San Martino, Genova, Italy
| | - Andrea Benzi
- Department of Experimental Medicine, Biochemistry Section, University of Genoa, Genoa, Italy
| | - Santina Bruzzone
- IRCCS Ospedale Policlinico San Martino, Genova, Italy
- Department of Experimental Medicine, Biochemistry Section, University of Genoa, Genoa, Italy
| | - Silvia Ravera
- Department of Experimental Medicine, Human Anatomy Section, University of Genoa, Genoa, Italy
| | | | | | - Stefania Vernazza
- Department of Experimental Medicine, General Pathology Section, University of Genoa, Genoa, Italy
| | - Melania Grottoli
- Department of Experimental Medicine, General Pathology Section, University of Genoa, Genoa, Italy
| | - Barbara Marengo
- Department of Experimental Medicine, General Pathology Section, University of Genoa, Genoa, Italy
| | - Cinzia Domenicotti
- Department of Experimental Medicine, General Pathology Section, University of Genoa, Genoa, Italy
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18
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Majchrzak-Stiller B, Buchholz M, Peters I, Waschestjuk D, Strotmann J, Höhn P, Hahn S, Braumann C, Uhl W, Müller T, Möhler H. GP-2250, a novel anticancer agent, inhibits the energy metabolism, activates AMP-Kinase and impairs the NF-kB pathway in pancreatic cancer cells. J Cell Mol Med 2023. [PMID: 37390227 DOI: 10.1111/jcmm.17825] [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: 12/14/2022] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 07/02/2023] Open
Abstract
GP-2250, a novel anticancer agent, severely limits the energy metabolism, as demonstrated by the inhibition of hexokinase 2 and glyceraldehyde-3-phosphate dehydrogenase and a decrease of ATP. Rescue experiments with supplementary pyruvate or oxaloacetate demonstrated that a TCA cycle deficit largely contributed to cytotoxicity. Activation of the energy-deficit sensor, AMP-dependent protein kinase, was associated with increased phosphorylation of acetyl-CoA carboxylase and Raptor, pointing to a possible deficit in the synthesis of fatty acids and proteins as essential cell components. Binding of p65 to DNA was dose-dependently reduced in nuclear lysates. A transcriptional deficit of NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) was substantiated by the downregulation of cyclin D1 and of the anti-apoptotic Bcl2, in line with reduction in tumour cell proliferation and induction of apoptosis, respectively. The upregulation of p53 concomitant with an excess of ROS supported apoptosis. Thus, the anticancer activity of GP-2250 is a result of disruption of energy metabolism and inhibition of tumour promotion by NF-κB.
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Affiliation(s)
- Britta Majchrzak-Stiller
- Department of General and Visceral Surgery, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Marie Buchholz
- Department of General and Visceral Surgery, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Ilka Peters
- Department of General and Visceral Surgery, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Daniel Waschestjuk
- Department of General and Visceral Surgery, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Johanna Strotmann
- Department of General and Visceral Surgery, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Philipp Höhn
- Department of General and Visceral Surgery, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Stephan Hahn
- Department of Molecular Gastrointestinal Oncology, Ruhr-University Bochum, Bochum, Germany
| | - Chris Braumann
- Department of General and Visceral Surgery, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
- Department of General, Visceral and Vascular Surgery, Evangelische Kliniken Gelsenkirchen, Akademisches Lehrkrankenhaus der Universität Duisburg-Essen, Gelsenkirchen, Germany
| | - Waldemar Uhl
- Department of General and Visceral Surgery, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | | | - Hanns Möhler
- Institute of Pharmacology, University of Zurich and Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH), Zurich, Switzerland
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19
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Lei P, Wang W, Sheldon M, Sun Y, Yao F, Ma L. Role of Glucose Metabolic Reprogramming in Breast Cancer Progression and Drug Resistance. Cancers (Basel) 2023; 15:3390. [PMID: 37444501 PMCID: PMC10341343 DOI: 10.3390/cancers15133390] [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: 04/26/2023] [Revised: 06/26/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
The involvement of glucose metabolic reprogramming in breast cancer progression, metastasis, and therapy resistance has been increasingly appreciated. Studies in recent years have revealed molecular mechanisms by which glucose metabolic reprogramming regulates breast cancer. To date, despite a few metabolism-based drugs being tested in or en route to clinical trials, no drugs targeting glucose metabolism pathways have yet been approved to treat breast cancer. Here, we review the roles and mechanisms of action of glucose metabolic reprogramming in breast cancer progression and drug resistance. In addition, we summarize the currently available metabolic inhibitors targeting glucose metabolism and discuss the challenges and opportunities in targeting this pathway for breast cancer treatment.
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Affiliation(s)
- Pan Lei
- Hubei Hongshan Laboratory, College of Biomedicine and Health, Huazhong Agricultural University, Wuhan 430070, China; (P.L.); (W.W.)
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Wenzhou Wang
- Hubei Hongshan Laboratory, College of Biomedicine and Health, Huazhong Agricultural University, Wuhan 430070, China; (P.L.); (W.W.)
| | - Marisela Sheldon
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Yutong Sun
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Fan Yao
- Hubei Hongshan Laboratory, College of Biomedicine and Health, Huazhong Agricultural University, Wuhan 430070, China; (P.L.); (W.W.)
- Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
| | - Li Ma
- Department of Experimental Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston TX 77030, USA
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20
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Liu Y, Wang J, Jiang M. Copper-related genes predict prognosis and characteristics of breast cancer. Front Immunol 2023; 14:1145080. [PMID: 37180167 PMCID: PMC10172490 DOI: 10.3389/fimmu.2023.1145080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 04/10/2023] [Indexed: 05/15/2023] Open
Abstract
Background The role of copper in cancer treatment is multifaceted, with copper homeostasis-related genes associated with both breast cancer prognosis and chemotherapy resistance. Interestingly, both elimination and overload of copper have been reported to have therapeutic potential in cancer treatment. Despite these findings, the exact relationship between copper homeostasis and cancer development remains unclear, and further investigation is needed to clarify this complexity. Methods The pan-cancer gene expression and immune infiltration analysis were performed using the Cancer Genome Atlas Program (TCGA) dataset. The R software packages were employed to analyze the expression and mutation status of breast cancer samples. After constructing a prognosis model to separate breast cancer samples by LASSO-Cox regression, we examined the immune statement, survival status, drug sensitivity and metabolic characteristics of the high- and low-copper related genes scoring groups. We also studied the expression of the constructed genes using the human protein atlas database and analyzed their related pathways. Finally, copper staining was performed with the clinical sample to investigate the distribution of copper in breast cancer tissue and paracancerous tissue. Results Pan-cancer analysis showed that copper-related genes are associated with breast cancer, and the immune infiltration profile of breast cancer samples is significantly different from that of other cancers. The essential copper-related genes of LASSO-Cox regression were ATP7B (ATPase Copper Transporting Beta) and DLAT (Dihydrolipoamide S-Acetyltransferase), whose associated genes were enriched in the cell cycle pathway. The low-copper related genes scoring group presented higher levels of immune activation, better probabilities of survival, enrichment in pathways related to pyruvate metabolism and apoptosis, and higher sensitivity to chemotherapy drugs. Immunohistochemistry staining showed high protein expression of ATP7B and DLAT in breast cancer samples. The copper staining showed copper distribution in breast cancer tissue. Conclusion This study displayed the potential impacts of copper-related genes on the overall survival, immune infiltration, drug sensitivity and metabolic profile of breast cancer, which could predict patients' survival and tumor statement. These findings may serve to support future research efforts aiming at improving the management of breast cancer.
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Affiliation(s)
- Yi Liu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jiandong Wang
- Department of General Surgery, The First Medical Center, Chinese People's Liberation Army (PLA) General Hospital, Beijing, China
| | - Mengxi Jiang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
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21
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Woolbright BL, Rajendran G, Abbott E, Martin A, Didde R, Dennis K, Harris RA, Taylor JA. Pyruvate Dehydrogenase Kinase 4 Deficiency Increases Tumorigenesis in a Murine Model of Bladder Cancer. Cancers (Basel) 2023; 15:1654. [PMID: 36980540 PMCID: PMC10046149 DOI: 10.3390/cancers15061654] [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: 01/26/2023] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/10/2023] Open
Abstract
Pyruvate dehydrogenase kinase 4 (PDK4) is a mitochondrial isozyme in the PDK family (PDK1-4) partially responsible for phosphorylation of pyruvate dehydrogenase (PDH). Phosphorylation of PDH is thought to result in a pro-proliferative shift in metabolism that sustains growth of cancer cells. Previous data from our lab indicate the pan-PDK inhibitor dichloroacetate (DCA) or acute genetic knockdown of PDK4 blocks proliferation of bladder cancer (BCa) cells. The goal of this study was to determine the role of PDK4 in an in vivo BCa model, with the hypothesis that genetic depletion of PDK4 would impair formation of BCa. PDK4-/- or WT animals were exposed to N-Butyl-N-(4-hydroxybutyl) nitrosamine (BBN) for 16 weeks, and tumors were allowed to develop for up to 7 additional weeks. PDK4-/- mice had significantly larger tumors at later time points. When animals were treated with cisplatin, PDK4-/- animals still had larger tumors than WT mice. PDK4 expression was assessed in human tissue and in mice. WT mice lost expression of PDK4 as tumors became muscle-invasive. Similar results were observed in human samples, wherein tumors had less expression of PDK4 than benign tissue. In summary, PDK4 has a complex, multifunctional role in BCa and may represent an underrecognized tumor suppressor.
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Affiliation(s)
| | - Ganeshkumar Rajendran
- Department of Urology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Erika Abbott
- Department of Urology, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Austin Martin
- School of Medicine, Kansas University Medical Center, Kansas City, KS 66160, USA
| | - Ryan Didde
- School of Medicine, Kansas University Medical Center, Kansas City, KS 66160, USA
| | - Katie Dennis
- Department of Pathology, Kansas University Medical Center, Kansas City, KS 66160, USA
| | - Robert A. Harris
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - John A. Taylor
- Department of Urology, University of Kansas Medical Center, Kansas City, KS 66160, USA
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22
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Targeting Mitochondrial Metabolic Reprogramming as a Potential Approach for Cancer Therapy. Int J Mol Sci 2023; 24:ijms24054954. [PMID: 36902385 PMCID: PMC10003438 DOI: 10.3390/ijms24054954] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/11/2023] [Accepted: 02/22/2023] [Indexed: 03/08/2023] Open
Abstract
Abnormal energy metabolism is a characteristic of tumor cells, and mitochondria are important components of tumor metabolic reprogramming. Mitochondria have gradually received the attention of scientists due to their important functions, such as providing chemical energy, producing substrates for tumor anabolism, controlling REDOX and calcium homeostasis, participating in the regulation of transcription, and controlling cell death. Based on the concept of reprogramming mitochondrial metabolism, a range of drugs have been developed to target the mitochondria. In this review, we discuss the current progress in mitochondrial metabolic reprogramming and summarized the corresponding treatment options. Finally, we propose mitochondrial inner membrane transporters as new and feasible therapeutic targets.
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23
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Xu X, Hou Y, Lin S, Wang K, Ren Y, Zheng T, Zhang X, Li M, Fan L. Sodium selenite inhibits proliferation of lung cancer cells by inhibiting NF-κB nuclear translocation and down-regulating PDK1 expression which is a key enzyme in energy metabolism expression. J Trace Elem Med Biol 2023; 78:127147. [PMID: 36963369 DOI: 10.1016/j.jtemb.2023.127147] [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: 04/06/2022] [Revised: 02/21/2023] [Accepted: 03/01/2023] [Indexed: 03/06/2023]
Abstract
As a trace element that maintains homeostasis in human body, selenium has significant anti-tumor activity. However, its exact molecular mechanism remains to be elucidated. Sodium selenite (SSe) is the most widely-distributed inorganic selenium in nature. In this study, we selected SSe as the research object to explore its anti-tumor mechanism in lung cancer. In vitro experiment showed that SSe could inhibit the activation of NF-κB signaling pathway, knowing that NF-κB is an important intracellular nuclear transcription factor that regulates the expression of pyruvate dehydrogenase kinase 1 (PDK1), a key energy metabolism switch affecting the survival status of the whole cell.At the same time, Bay11-7082(NF-κB signaling pathway inhibitors) and SSe resulted in phosphorylation of p65 and IκBα, decreased expression of PDK1 and Bcl-2,and increased expression of Bax in lung cancer cells. Our further study demonstrated that the reduction of PDK1 activity inhibited lactate secretion, reduced mitochondrial membrane potential, caused the release of Cytochrome C (Cyto C), activated mitochondrial respiration, and promoted the apoptosis of lung cancer cells. The in vivo experiment revealed that SSe inhibited the activation of NF-κB signaling pathway, decreased the expression of PDK1, and induced lung cancer cell proliferation and apoptosis. All these findings indicated that SSe promoted lung cancer cell apoptosis by inhibiting the activation of NF-κB signaling pathway, down-regulating PDK1 and activating mitochondrial apoptosis pathway.
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Affiliation(s)
- Xiao Xu
- Institute of Energy Metabolism and Health, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China; Anhui Provincial Chest Hospital,Hefei 230022, Anhui Province, China
| | - Yaqin Hou
- Institute of Energy Metabolism and Health, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China; Department of Respiratory Medicine, No. 901 Hospital of the Chinese People's Liberation Army Logistic Support Force, Hefei 230071, Anhui Province, China
| | - Shumeng Lin
- Department of Respiratory Medicine, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Kai Wang
- Department of Respiratory Medicine, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yanbei Ren
- Department of Respiratory Medicine, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Tiansheng Zheng
- Department of Respiratory Medicine, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Xi Zhang
- The Second People's Hospital of HeFei, Hefei 230011, Anhui Province, China
| | - Ming Li
- Department of Respiratory Medicine, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
| | - Lihong Fan
- Institute of Energy Metabolism and Health, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China; Department of Respiratory Medicine, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
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24
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Goruppi S, Clocchiatti A, Bottoni G, Di Cicco E, Ma M, Tassone B, Neel V, Demehri S, Simon C, Paolo Dotto G. The ULK3 kinase is a determinant of keratinocyte self-renewal and tumorigenesis targeting the arginine methylome. Nat Commun 2023; 14:887. [PMID: 36797248 PMCID: PMC9935893 DOI: 10.1038/s41467-023-36410-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/26/2023] [Indexed: 02/18/2023] Open
Abstract
Epigenetic mechanisms oversee epidermal homeostasis and oncogenesis. The identification of kinases controlling these processes has direct therapeutic implications. We show that ULK3 is a nuclear kinase with elevated expression levels in squamous cell carcinomas (SCCs) arising in multiple body sites, including skin and Head/Neck. ULK3 loss by gene silencing or deletion reduces proliferation and clonogenicity of human keratinocytes and SCC-derived cells and affects transcription impinging on stem cell-related and metabolism programs. Mechanistically, ULK3 directly binds and regulates the activity of two histone arginine methyltransferases, PRMT1 and PRMT5 (PRMT1/5), with ULK3 loss compromising PRMT1/5 chromatin association to specific genes and overall methylation of histone H4, a shared target of these enzymes. These findings are of translational significance, as downmodulating ULK3 by RNA interference or locked antisense nucleic acids (LNAs) blunts the proliferation and tumorigenic potential of SCC cells and promotes differentiation in two orthotopic models of skin cancer.
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Affiliation(s)
- Sandro Goruppi
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, 02129, MA, USA.
- Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, 02114, MA, USA.
| | - Andrea Clocchiatti
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, 02129, MA, USA
- Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, 02114, MA, USA
| | - Giulia Bottoni
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, 02129, MA, USA
- Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, 02114, MA, USA
| | - Emery Di Cicco
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, 02129, MA, USA
- Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, 02114, MA, USA
| | - Min Ma
- Personalized Cancer Prevention Research Unit and Head and Neck Surgery Division, Centre Hospitalier Universitaire Vaudois, Lausanne, 1011, Switzerland
- Department of Immunobiology, University of Lausanne, Epalinges, 1066, Switzerland
| | - Beatrice Tassone
- Personalized Cancer Prevention Research Unit and Head and Neck Surgery Division, Centre Hospitalier Universitaire Vaudois, Lausanne, 1011, Switzerland
- Department of Immunobiology, University of Lausanne, Epalinges, 1066, Switzerland
| | - Victor Neel
- Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, 02114, MA, USA
| | - Shadhmer Demehri
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, 02129, MA, USA
- Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, 02114, MA, USA
| | - Christian Simon
- Personalized Cancer Prevention Research Unit and Head and Neck Surgery Division, Centre Hospitalier Universitaire Vaudois, Lausanne, 1011, Switzerland
- Department of Immunobiology, University of Lausanne, Epalinges, 1066, Switzerland
- International Cancer Prevention Institute, Epalinges, 1066, Switzerland
| | - G Paolo Dotto
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, 02129, MA, USA.
- Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, 02114, MA, USA.
- Personalized Cancer Prevention Research Unit and Head and Neck Surgery Division, Centre Hospitalier Universitaire Vaudois, Lausanne, 1011, Switzerland.
- Department of Immunobiology, University of Lausanne, Epalinges, 1066, Switzerland.
- International Cancer Prevention Institute, Epalinges, 1066, Switzerland.
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25
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Afonso J, Gonçalves C, Costa M, Ferreira D, Santos L, Longatto-Filho A, Baltazar F. Glucose Metabolism Reprogramming in Bladder Cancer: Hexokinase 2 (HK2) as Prognostic Biomarker and Target for Bladder Cancer Therapy. Cancers (Basel) 2023; 15:cancers15030982. [PMID: 36765947 PMCID: PMC9913750 DOI: 10.3390/cancers15030982] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
Proliferating cancer cells are able to reprogram their energy metabolism, favouring glycolysis even in the presence of oxygen and fully functioning mitochondria. Research is needed to validate the glycolysis-related proteins as prognostic/predictive biomarkers in urothelial bladder carcinoma (UBC), a malignancy tagged by high recurrence rates and poor response to chemotherapy. Here, we assessed GLUT1, HK2, PFKL, PKM2, phospho-PDH, and LDHA immunoexpression in 76 UBC samples, differentiating among urothelial, fibroblast, and endothelial cells and among normoxic versus hypoxic areas. We additionally studied the functional effects of the HK2 inhibitor 2-deoxy-D-glucose (2DG) in "in vitro" and "in vivo" preclinical UBC models. We showed that the expression of the glycolysis-related proteins is associated with UBC aggressiveness and poor prognosis. HK2 remained as an independent prognostic factor for disease-free and overall survival. 2DG decreased the UBC cell's viability, proliferation, migration, and invasion; the inhibition of cell cycle progression and apoptosis occurrence was also verified. A significant reduction in tumour growth and blood vessel formation upon 2DG treatment was observed in the chick chorioallantoic membrane assay. 2DG potentiated the cisplatin-induced inhibition of cell viability in a cisplatin-resistant subline. This study highlights HK2 as a prognostic biomarker for UBC patients and demonstrates the potential benefits of using 2DG as a glycolysis inhibitor. Future studies should focus on integrating 2DG into chemotherapy design, as an attempt to overcome cisplatin resistance.
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Affiliation(s)
- Julieta Afonso
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Céline Gonçalves
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Marta Costa
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
| | - Débora Ferreira
- Centre of Biological Engineering (CEB), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- LABBELS—Associate Laboratory, 4710-057 Braga, Portugal
| | - Lúcio Santos
- Experimental Pathology and Therapeutics Group, Research Center of the Portuguese Institute of Oncology (CI-IPOP), 4200-072 Porto, Portugal
- Porto Comprehensive Cancer Center (P.CCC), 4200-072 Porto, Portugal
| | - Adhemar Longatto-Filho
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Laboratory of Medical Investigation (LIM14), Faculty of Medicine, São Paulo State University, São Paulo 01049-010, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, São Paulo 14784-400, Brazil
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- ICVS/3B’s—PT Government Associate Laboratory, 4710-057 Braga, Portugal
- Correspondence: ; Tel.: +351-253-60-48-28
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26
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Pappas G, Wilkinson ML, Gow AJ. Nitric oxide regulation of cellular metabolism: Adaptive tuning of cellular energy. Nitric Oxide 2023; 131:8-17. [PMID: 36470373 PMCID: PMC9839556 DOI: 10.1016/j.niox.2022.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/24/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Nitric oxide can interact with a wide range of proteins including many that are involved in metabolism. In this review we have summarized the effects of NO on glycolysis, fatty acid metabolism, the TCA cycle, and oxidative phosphorylation with reference to skeletal muscle. Low to moderate NO concentrations upregulate glucose and fatty acid oxidation, while higher NO concentrations shift cellular reliance toward a fully glycolytic phenotype. Moderate NO production directly inhibits pyruvate dehydrogenase activity, reducing glucose-derived carbon entry into the TCA cycle and subsequently increasing anaploretic reactions. NO directly inhibits aconitase activity, increasing reliance on glutamine for continued energy production. At higher or prolonged NO exposure, citrate accumulation can inhibit multiple ATP-producing pathways. Reduced TCA flux slows NADH/FADH entry into the ETC. NO can also inhibit the ETC directly, further limiting oxidative phosphorylation. Moderate NO production improves mitochondrial efficiency while improving O2 utilization increasing whole-body energy production. Long-term bioenergetic capacity may be increased because of NO-derived ROS, which participate in adaptive cellular redox signaling through AMPK, PCG1-α, HIF-1, and NF-κB. However, prolonged exposure or high concentrations of NO can result in membrane depolarization and opening of the MPT. In this way NO may serve as a biochemical rheostat matching energy supply with demand for optimal respiratory function.
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Affiliation(s)
- Gregory Pappas
- Department of Kinesiology & Applied Physiology, Rutgers the State University of New Jersey, NJ, 08854, USA.
| | - Melissa L Wilkinson
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers the State University of New Jersey, NJ, 08854, USA.
| | - Andrew J Gow
- Department of Kinesiology & Applied Physiology, Rutgers the State University of New Jersey, NJ, 08854, USA; Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers the State University of New Jersey, NJ, 08854, USA.
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27
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Role of Mitochondrial Transporters on Metabolic Rewiring of Pancreatic Adenocarcinoma: A Comprehensive Review. Cancers (Basel) 2023; 15:cancers15020411. [PMID: 36672360 PMCID: PMC9857038 DOI: 10.3390/cancers15020411] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
Pancreatic cancer is among the deadliest cancers worldwide and commonly presents as pancreatic ductal adenocarcinoma (PDAC). Metabolic reprogramming is a hallmark of PDAC. Glucose and glutamine metabolism are extensively rewired in order to fulfil both energetic and synthetic demands of this aggressive tumour and maintain favorable redox homeostasis. The mitochondrial pyruvate carrier (MPC), the glutamine carrier (SLC1A5_Var), the glutamate carrier (GC), the aspartate/glutamate carrier (AGC), and the uncoupling protein 2 (UCP2) have all been shown to influence PDAC cell growth and progression. The expression of MPC is downregulated in PDAC and its overexpression reduces cell growth rate, whereas the other four transporters are usually overexpressed and the loss of one or more of them renders PDAC cells unable to grow and proliferate by altering the levels of crucial metabolites such as aspartate. The aim of this review is to comprehensively evaluate the current experimental evidence about the function of these carriers in PDAC metabolic rewiring. Dissecting the precise role of these transporters in the context of the tumour microenvironment is necessary for targeted drug development.
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28
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Wang D, Peng Y, Li Y, Kpegah JKSK, Chen S. Multifunctional inorganic biomaterials: New weapons targeting osteosarcoma. Front Mol Biosci 2023; 9:1105540. [PMID: 36660426 PMCID: PMC9846365 DOI: 10.3389/fmolb.2022.1105540] [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: 11/22/2022] [Accepted: 12/14/2022] [Indexed: 01/05/2023] Open
Abstract
Osteosarcoma is the malignant tumor with the highest incidence rate among primary bone tumors and with a high mortality rate. The anti-osteosarcoma materials are the cross field between material science and medicine, having a wide range of application prospects. Among them, biological materials, such as compounds from black phosphorous, magnesium, zinc, copper, silver, etc., becoming highly valued in the biological materials field as well as in orthopedics due to their good biocompatibility, similar mechanical properties with biological bones, good biodegradation effect, and active antibacterial and anti-tumor effects. This article gives a comprehensive review of the research progress of anti-osteosarcoma biomaterials.
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Affiliation(s)
- Dong Wang
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China,*Correspondence: Shijie Chen,
| | - Yi Peng
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China,*Correspondence: Shijie Chen,
| | - Yuezhan Li
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China,College of Medicine, Nursing and Health Science, School of Medicine, Regenerative Medicine Institute (REMEDI), University of Galway, Galway, Ireland,*Correspondence: Shijie Chen,
| | | | - Shijie Chen
- Department of Spine Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China,Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, China,*Correspondence: Shijie Chen,
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29
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PGC-1α participates in tumor chemoresistance by regulating glucose metabolism and mitochondrial function. Mol Cell Biochem 2023; 478:47-57. [PMID: 35713741 DOI: 10.1007/s11010-022-04477-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 05/10/2022] [Indexed: 01/22/2023]
Abstract
Chemotherapy resistance is the main reason for the failure of cancer treatment. The mechanism of drug resistance is complex and diverse. In recent years, the role of glucose metabolism and mitochondrial function in cancer resistance has gathered considerable interest. The increase in metabolic plasticity of cancer cells' mitochondria and adaptive changes to the mitochondrial function are some of the mechanisms through which cancer cells resist chemotherapy. As a key molecule regulating the mitochondrial function and glucose metabolism, PGC-1α plays an indispensable role in cancer progression. However, the role of PGC-1α in chemotherapy resistance remains controversial. Here, we discuss the role of PGC-1α in glucose metabolism and mitochondrial function and present a comprehensive overview of PGC-1α in chemotherapy resistance.
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30
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Deng H, Chen Y, Li P, Hang Q, Zhang P, Jin Y, Chen M. PI3K/AKT/mTOR pathway, hypoxia, and glucose metabolism: Potential targets to overcome radioresistance in small cell lung cancer. CANCER PATHOGENESIS AND THERAPY 2023; 1:56-66. [PMID: 38328610 PMCID: PMC10846321 DOI: 10.1016/j.cpt.2022.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 09/02/2022] [Accepted: 09/25/2022] [Indexed: 02/09/2024]
Abstract
Small cell lung cancer (SCLC) is a highly aggressive tumor type for which limited therapeutic progress has been made. Platinum-based chemotherapy with or without thoracic radiotherapy remains the backbone of treatment, but most patients with SCLC acquire therapeutic resistance. Given the need for more effective therapies, better elucidation of the molecular pathogenesis of SCLC is imperative. The phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) pathway is frequently activated in SCLC and strongly associated with resistance to ionizing radiation in many solid tumors. This pathway is an important regulator of cancer cell glucose metabolism, and its activation probably effects radioresistance by influencing bioenergetic processes in SCLC. Glucose metabolism has three main branches-aerobic glycolysis, oxidative phosphorylation, and the pentose phosphate pathway-involved in radioresistance. The interaction between the PI3K/AKT/mTOR pathway and glucose metabolism is largely mediated by hypoxia-inducible factor 1 (HIF-1) signaling. The PI3K/AKT/mTOR pathway also influences glucose metabolism through other mechanisms to participate in radioresistance, including inhibiting the ubiquitination of rate-limiting enzymes of the pentose phosphate pathway. This review summarizes our understanding of links among the PI3K/AKT/mTOR pathway, hypoxia, and glucose metabolism in SCLC radioresistance and highlights promising research directions to promote cancer cell death and improve the clinical outcome of patients with this devastating disease.
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Affiliation(s)
- Huan Deng
- Department of Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Zhejiang Key Laboratory of Radiation Oncology, Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
- College of Life Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Yamei Chen
- Department of Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Zhejiang Key Laboratory of Radiation Oncology, Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
| | - Peijing Li
- Department of Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Zhejiang Key Laboratory of Radiation Oncology, Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
| | - Qingqing Hang
- Department of Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Zhejiang Key Laboratory of Radiation Oncology, Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
| | - Peng Zhang
- Department of Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
| | - Ying Jin
- Department of Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Zhejiang Key Laboratory of Radiation Oncology, Hangzhou, Zhejiang 310022, China
- Department of Radiation Oncology, Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, Zhejiang 310022, China
| | - Ming Chen
- Department of Radiation Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University, Guangzhou, Guangdong 510060, China
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Mitochondria directly sense osmotic stress to trigger rapid metabolic remodeling via regulation of pyruvate dehydrogenase phosphorylation. J Biol Chem 2022; 299:102837. [PMID: 36581206 PMCID: PMC9879793 DOI: 10.1016/j.jbc.2022.102837] [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: 07/20/2022] [Revised: 12/20/2022] [Accepted: 12/21/2022] [Indexed: 12/27/2022] Open
Abstract
A high-salt diet significantly impacts various diseases, ilncluding cancer and immune diseases. Recent studies suggest that the high-salt/hyperosmotic environment in the body may alter the chronic properties of cancer and immune cells in the disease context. However, little is known about the acute metabolic changes in hyperosmotic stress. Here, we found that hyperosmotic stress for a few minutes induces Warburg-like metabolic remodeling in HeLa and Raw264.7 cells and suppresses fatty acid oxidation. Regarding Warburg-like remodeling, we determined that the pyruvate dehydrogenase phosphorylation status was altered bidirectionally (high in hyperosmolarity and low in hypoosmolarity) to osmotic stress in isolated mitochondria, suggesting that mitochondria themselves have an acute osmosensing mechanism. Additionally, we demonstrate that Warburg-like remodeling is required for HeLa cells to maintain ATP levels and survive under hyperosmotic conditions. Collectively, our findings suggest that cells exhibit acute metabolic remodeling under osmotic stress via the regulation of pyruvate dehydrogenase phosphorylation by direct osmosensing within mitochondria.
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Park S, Mossmann D, Chen Q, Wang X, Dazert E, Colombi M, Schmidt A, Ryback B, Ng CKY, Terracciano LM, Heim MH, Hall MN. Transcription factors TEAD2 and E2A globally repress acetyl-CoA synthesis to promote tumorigenesis. Mol Cell 2022; 82:4246-4261.e11. [PMID: 36400009 DOI: 10.1016/j.molcel.2022.10.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 08/22/2022] [Accepted: 10/24/2022] [Indexed: 11/18/2022]
Abstract
Acetyl-coenzyme A (acetyl-CoA) plays an important role in metabolism, gene expression, signaling, and other cellular processes via transfer of its acetyl group to proteins and metabolites. However, the synthesis and usage of acetyl-CoA in disease states such as cancer are poorly characterized. Here, we investigated global acetyl-CoA synthesis and protein acetylation in a mouse model and patient samples of hepatocellular carcinoma (HCC). Unexpectedly, we found that acetyl-CoA levels are decreased in HCC due to transcriptional downregulation of all six acetyl-CoA biosynthesis pathways. This led to hypo-acetylation specifically of non-histone proteins, including many enzymes in metabolic pathways. Importantly, repression of acetyl-CoA synthesis promoted oncogenic dedifferentiation and proliferation. Mechanistically, acetyl-CoA synthesis was repressed by the transcription factors TEAD2 and E2A, previously unknown to control acetyl-CoA synthesis. Knockdown of TEAD2 and E2A restored acetyl-CoA levels and inhibited tumor growth. Our findings causally link transcriptional reprogramming of acetyl-CoA metabolism, dedifferentiation, and cancer.
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Affiliation(s)
- Sujin Park
- Biozentrum, University of Basel, 4056 Basel, Switzerland
| | - Dirk Mossmann
- Biozentrum, University of Basel, 4056 Basel, Switzerland
| | - Qian Chen
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland; Division of Gastroenterology and Hepatology, Clarunis, University Center for Gastrointestinal and Liver Diseases, 4031 Basel, Switzerland
| | - Xueya Wang
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland; Division of Gastroenterology and Hepatology, Clarunis, University Center for Gastrointestinal and Liver Diseases, 4031 Basel, Switzerland
| | - Eva Dazert
- Biozentrum, University of Basel, 4056 Basel, Switzerland
| | - Marco Colombi
- Biozentrum, University of Basel, 4056 Basel, Switzerland
| | | | - Brendan Ryback
- Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland
| | - Charlotte K Y Ng
- Institute of Pathology, University Hospital Basel, 4031 Basel, Switzerland; Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | | | - Markus H Heim
- Department of Biomedicine, University of Basel, 4031 Basel, Switzerland; Division of Gastroenterology and Hepatology, Clarunis, University Center for Gastrointestinal and Liver Diseases, 4031 Basel, Switzerland
| | - Michael N Hall
- Biozentrum, University of Basel, 4056 Basel, Switzerland.
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Melatonin Treatment Triggers Metabolic and Intracellular pH Imbalance in Glioblastoma. Cells 2022; 11:cells11213467. [DOI: 10.3390/cells11213467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/26/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
Metabolic rewiring in glioblastoma (GBM) is linked to intra- and extracellular pH regulation. In this study, we sought to characterize the role of melatonin on intracellular pH modulation and metabolic consequences to identify the mechanisms of action underlying melatonin oncostatic effects on GBM tumor initiating cells. GBM tumor initiating cells were treated at different times with melatonin (1.5 and 3.0 mM). We analyzed melatonin’s functional effects on GBM proliferation, cell cycle, viability, stemness, and chemo-radiosensitivity. We then assessed the effects of melatonin on GBM metabolism by analyzing the mitochondrial and glycolytic parameters. We also measured the intracellular and extracellular pH. Finally, we tested the effects of melatonin on a mouse subcutaneous xenograft model. We found that melatonin downregulated LDHA and MCT4, decreasing lactate production and inducing a decrease in intracellular pH that was associated with an increase in ROS and ATP depletion. These changes blocked cell cycle progression and induced cellular death and we observed similar results in vivo. Melatonin’s cytotoxic effects on GBM were due, at least in part, to intracellular pH modulation, which has emerged as a newly identified mechanism, providing new insights into the oncostatic effect of melatonin on GBM.
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Feng J, Lian Z, Xia X, Lu Y, Hu K, Zhang Y, Liu Y, Hu L, Yuan K, Sun Z, Pang X. Targeting metabolic vulnerability in mitochondria conquers MEK inhibitor resistance in KRAS-mutant lung cancer. Acta Pharm Sin B 2022; 13:1145-1163. [PMID: 36970205 PMCID: PMC10031260 DOI: 10.1016/j.apsb.2022.10.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 08/18/2022] [Accepted: 09/23/2022] [Indexed: 11/01/2022] Open
Abstract
MEK is a canonical effector of mutant KRAS; however, MEK inhibitors fail to yield satisfactory clinical outcomes in KRAS-mutant cancers. Here, we identified mitochondrial oxidative phosphorylation (OXPHOS) induction as a profound metabolic alteration to confer KRAS-mutant non-small cell lung cancer (NSCLC) resistance to the clinical MEK inhibitor trametinib. Metabolic flux analysis demonstrated that pyruvate metabolism and fatty acid oxidation were markedly enhanced and coordinately powered the OXPHOS system in resistant cells after trametinib treatment, satisfying their energy demand and protecting them from apoptosis. As molecular events in this process, the pyruvate dehydrogenase complex (PDHc) and carnitine palmitoyl transferase IA (CPTIA), two rate-limiting enzymes that control the metabolic flux of pyruvate and palmitic acid to mitochondrial respiration were activated through phosphorylation and transcriptional regulation. Importantly, the co-administration of trametinib and IACS-010759, a clinical mitochondrial complex I inhibitor that blocks OXPHOS, significantly impeded tumor growth and prolonged mouse survival. Overall, our findings reveal that MEK inhibitor therapy creates a metabolic vulnerability in the mitochondria and further develop an effective combinatorial strategy to circumvent MEK inhibitors resistance in KRAS-driven NSCLC.
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Alpha-Lipoic Acid Protects Against Doxorubicin-Induced Cardiotoxicity by Regulating Pyruvate Dehydrogenase Kinase 4. Cardiovasc Toxicol 2022; 22:879-891. [PMID: 35930219 DOI: 10.1007/s12012-022-09766-2] [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: 03/09/2022] [Accepted: 07/20/2022] [Indexed: 11/03/2022]
Abstract
As a widely used anti-tumor anthracycline, the accumulation of Doxorubicin (DOX) in body causes irreparable cardiomyocyte damage and therefore is limited in clinical application. Strategies to prevent from DOX-associated cardiotoxicity are urgent for patients who undergo DOX-based chemotherapy. Since oxidative stress injury being the major reason for myocardial toxicity of DOX, here we demonstrated that, Alpha-lipoic acid (ALA), which is a reductive agent, plays a cardioprotective role in attenuating DOX-induced cardiotoxicity by inhibiting pyruvate dehydrogenase kinase 4 (PDK4) expression. In vivo, the beneficial effect of ALA was evidenced by increased survival rate, mechanical contraction, and oxidative phosphorylation, while decreased reactive oxidative species (ROS) and apoptosis. In vitro, PDK4 overexpression remarkably increased DOX-induced apoptosis and ROS production in H9C2 cells. Notably, the protective effect of ALA was abrogated by PDK4 overexpression. We further used PDK4 knockout mice to identify the role of PDK4 in DOX-induced cardiotoxicity. Results elicited that PDK4 deficiency showed a consistent effect in protecting DOX cardiotoxicity as ALA treatment, which was evidenced by restored redox homeostasis and mitochondrial metabolism, finally inhibited myocardial injury. In conclusion, the cardioprotective role of ALA against DOX cardiotoxicity was dependent on PDK4-mediated regulation of oxidative stress and mitochondria metabolism.
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Elia I, Rowe JH, Johnson S, Joshi S, Notarangelo G, Kurmi K, Weiss S, Freeman GJ, Sharpe AH, Haigis MC. Tumor cells dictate anti-tumor immune responses by altering pyruvate utilization and succinate signaling in CD8 + T cells. Cell Metab 2022; 34:1137-1150.e6. [PMID: 35820416 PMCID: PMC9357162 DOI: 10.1016/j.cmet.2022.06.008] [Citation(s) in RCA: 83] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 04/22/2022] [Accepted: 06/15/2022] [Indexed: 01/22/2023]
Abstract
The tumor microenvironment (TME) is a unique metabolic niche that can inhibit T cell metabolism and cytotoxicity. To dissect the metabolic interplay between tumors and T cells, we establish an in vitro system that recapitulates the metabolic niche of the TME and allows us to define cell-specific metabolism. We identify tumor-derived lactate as an inhibitor of CD8+ T cell cytotoxicity, revealing an unexpected metabolic shunt in the TCA cycle. Metabolically fit cytotoxic T cells shunt succinate out of the TCA cycle to promote autocrine signaling via the succinate receptor (SUCNR1). Cytotoxic T cells are reliant on pyruvate carboxylase (PC) to replenish TCA cycle intermediates. By contrast, lactate reduces PC-mediated anaplerosis. The inhibition of pyruvate dehydrogenase (PDH) is sufficient to restore PC activity, succinate secretion, and the activation of SUCNR1. These studies identify PDH as a potential drug target to allow CD8+ T cells to retain cytotoxicity and overcome a lactate-enriched TME.
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Affiliation(s)
- Ilaria Elia
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium
| | - Jared H Rowe
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; Evergrande Center for Immunologic Diseases, Harvard Medical School, Brigham and Women's Hospital, Boston, MA 02115, USA; Division of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Sheila Johnson
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Shakchhi Joshi
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Giulia Notarangelo
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Kiran Kurmi
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Sarah Weiss
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; Evergrande Center for Immunologic Diseases, Harvard Medical School, Brigham and Women's Hospital, Boston, MA 02115, USA
| | - Gordon J Freeman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA 02115, USA
| | - Arlene H Sharpe
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA; Evergrande Center for Immunologic Diseases, Harvard Medical School, Brigham and Women's Hospital, Boston, MA 02115, USA.
| | - Marcia C Haigis
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA 02115, USA.
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High Expression of PDK4 Could Play a Potentially Protective Role by Attenuating Oxidative Stress after Subarachnoid Hemorrhage. J Clin Med 2022; 11:jcm11143974. [PMID: 35887737 PMCID: PMC9323843 DOI: 10.3390/jcm11143974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/29/2022] [Accepted: 07/06/2022] [Indexed: 02/04/2023] Open
Abstract
Pyruvate dehydrogenase (PDH), a key enzyme on the mitochondrial outer membrane, has been found to decrease activity notably in early brain injury (EBI) after subarachnoid hemorrhage (SAH). It has been demonstrated that PDH is associated with the production of reactive oxygen species (ROS) and apoptosis. Hence, in this study, we aimed to determine the cause of the decreased PDH activity and explore the potential role of PDH in EBI. We investigated the expression changes of PDH and pyruvate dehydrogenase kinase (PDK) in vivo and in vitro. Then, we explored the possible effects of PDH and ROS after SAH. The results showed that early overexpression of PDK4 promoted the phosphorylation of PDH, inhibited PDH activity, and may play a protective role after SAH in vivo and in vitro. Finally, we investigated the levels of PDK4 and pyruvate, which accumulated due to decreased PDH activity, in the cerebrospinal fluid (CSF) of 34 patients with SAH. Statistical analysis revealed that PDK4 and pyruvate expression was elevated in the CSF of SAH patients compared with that of controls, and this high expression correlated with the degree of neurological impairment and long-term outcome. Taken together, the results show that PDK4 has the potential to serve as a new therapeutic target and biomarker for assisting in the diagnosis of SAH severity and prediction of recovery.
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38
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Nunes-Xavier CE, Mingo J, Emaldi M, Flem-Karlsen K, Mælandsmo GM, Fodstad Ø, Llarena R, López JI, Pulido R. Heterogeneous Expression and Subcellular Localization of Pyruvate Dehydrogenase Complex in Prostate Cancer. Front Oncol 2022; 12:873516. [PMID: 35692804 PMCID: PMC9174590 DOI: 10.3389/fonc.2022.873516] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 03/31/2022] [Indexed: 12/02/2022] Open
Abstract
Background Pyruvate dehydrogenase (PDH) complex converts pyruvate into acetyl-CoA by pyruvate decarboxylation, which drives energy metabolism during cell growth, including prostate cancer (PCa) cell growth. The major catalytic subunit of PDH, PDHA1, is regulated by phosphorylation/dephosphorylation by pyruvate dehydrogenase kinases (PDKs) and pyruvate dehydrogenase phosphatases (PDPs). There are four kinases, PDK1, PDK2, PDK3 and PDK4, which can phosphorylate and inactivate PDH; and two phosphatases, PDP1 and PDP2, that dephosphorylate and activate PDH. Methods We have analyzed by immunohistochemistry the expression and clinicopathological correlations of PDHA1, PDP1, PDP2, PDK1, PDK2, PDK3, and PDK4, as well as of androgen receptor (AR), in a retrospective PCa cohort of patients. A total of 120 PCa samples of representative tumor areas from all patients were included in tissue microarray (TMA) blocks for analysis. In addition, we studied the subcellular localization of PDK2 and PDK3, and the effects of the PDK inhibitor dichloroacetate (DCA) in the growth, proliferation, and mitochondrial respiration of PCa cells. Results We found heterogeneous expression of the PDH complex components in PCa tumors. PDHA1, PDP1, PDK1, PDK2, and PDK4 expression correlated positively with AR expression. A significant correlation of PDK2 immunostaining with biochemical recurrence and disease-free survival was revealed. In PCa tissue specimens, PDK2 displayed cytoplasmic and nuclear immunostaining, whereas PDK1, PDK3 and PDK4 showed mostly cytoplasmic staining. In cells, ectopically expressed PDK2 and PDK3 were mainly localized in mitochondria compartments. An increase in maximal mitochondrial respiration was observed in PCa cells upon PDK inhibition by DCA, in parallel with less proliferative capacity. Conclusion Our findings support the notion that expression of specific PDH complex components is related with AR signaling in PCa tumors. Furthermore, PDK2 expression associated with poor PCa prognosis. This highlights a potential for PDH complex components as targets for intervention in PCa.
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Affiliation(s)
- Caroline E Nunes-Xavier
- Biomarkers in Cancer, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.,Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Oslo, Norway
| | - Janire Mingo
- Biomarkers in Cancer, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Maite Emaldi
- Biomarkers in Cancer, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Karine Flem-Karlsen
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Oslo, Norway
| | - Gunhild M Mælandsmo
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Oslo, Norway
| | - Øystein Fodstad
- Department of Tumor Biology, Institute for Cancer Research, Oslo University Hospital Radiumhospitalet, Oslo, Norway
| | - Roberto Llarena
- Department of Urology, Cruces University Hospital, Barakaldo, Spain
| | - José I López
- Biomarkers in Cancer, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.,Department of Pathology, Cruces University Hospital, Barakaldo, Spain
| | - Rafael Pulido
- Biomarkers in Cancer, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.,Ikerbasque, Basque Foundation for Science, Bilbao, Spain
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The Pyruvate Dehydrogenase Complex Mitigates LPS-Induced Endothelial Barrier Dysfunction by Metabolic Regulation. Shock 2022; 57:308-317. [PMID: 35759309 DOI: 10.1097/shk.0000000000001931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
ABSTRACT Sepsis is a fatal health issue induced by an aberrant host response to infection, and it correlates with organ damage and a high mortality rate. Endothelial barrier dysfunction and subsequent capillary leakage play major roles in sepsis-induced multiorgan dysfunction. Anaerobic glycolysis is the primary metabolic mode in sepsis and the pyruvate dehydrogenase complex (PDHC) serves as a critical hub in energy regulation. Therefore, it is important to understand the role of PDHC in metabolic regulation during the development of sepsis-induced endothelial barrier dysfunction.In present study, human umbilical vein endothelial cells (HUVECs) and C57 BL/6 mice were treated with lipopolysaccharide (LPS) as models of endotoxemia. LPS increased basal glycolysis, compensatory glycolysis, and lactate secretion, indicating increased glycolysis level in endothelial cells (ECs). Activation of PDHC with dichloroacetate (DCA) reversed LPS-induced glycolysis, allowing PDHC to remain in the active dephosphorylated state, thereby preventing lactic acid production and HUVECs monolayers barrier dysfunction, as assessed by transendothelial electrical resistance and Fluorescein Isothiocyanate-labeled dextran. The in vivo study also showed that the lactate level and vascular permeability were increased in LPS-treated mice, but pretreatment with DCA attenuated these increases. The LPS-treated HUVEC model showed that DCA reversed LPS-induced phosphorylation of pyruvate dehydrogenase E1α Ser293 and Ser300 to restore PDHC activity. Immunoprecipitation results showed that LPS treatment increased the acetylation level of PDH E1α in HUVECs.Our study suggested that activation of PDHC may represent a therapeutic target for treatment of LPS-induced endothelial barrier dysfunction.
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Zhang L, Zhao Q, Cang H, Wang Z, Hu X, Pan R, Yang Y, Chen Y. Acute Myeloid Leukemia Cells Educate Mesenchymal Stromal Cells toward an Adipogenic Differentiation Propensity with Leukemia Promotion Capabilities. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:2105811. [PMID: 35686138 PMCID: PMC9165478 DOI: 10.1002/advs.202105811] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 02/16/2022] [Indexed: 05/14/2023]
Abstract
Mesenchymal stromal cells (MSCs) are essential elements of the bone marrow (BM) microenvironment, which have been widely implicated in pathways that contribute to leukemia growth and resistance. Recent reports showed genotypic and phenotypic alterations in leukemia patient-derived MSCs, indicating that MSCs might be educated/reprogrammed. However, the results have been inconclusive, possibly due to the heterogeneity of leukemia. Here, the authors report that acute myeloid leukemia (AML) induces MSCs towards an adipogenic differentiation propensity. RNAseq analysis reveal significant upregulation of gene expression enriched in the adipocyte differentiation process and reduction in osteoblast differentiation. The alteration is accompanied by a metabolic switch from glycolysis to a more oxidative phosphorylation-dependent manner. Mechanistic studies identify that AML cell-derived exosomes play a vital role during the AML cell-mediated MSCs education/reprogramming process. Pre-administration of mice BM microenvironment with AML-derived exosomes greatly enhance leukemia engraftment in vivo. The quantitative proteomic analysis identified a list of exosomal protein components that are differently expressed in AML-derived exosomes, which represent an opportunity for novel therapeutic strategies based on the targeting of exosome-based AML cells-MSCs communication. Collectively, the data show that AML-educated MSCs tend to differentiate into adipocytes contributing to disease progression, which suggests complex interactions of leukemia with microenvironment components.
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Affiliation(s)
- Luwen Zhang
- Department of Genetics, and Department of Genetic and Metabolic DiseaseThe Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouZhejiang310052China
- Zhejiang Provincial Key Laboratory of Genetic and Developmental DisordersInstitute of Genetics, Zhejiang UniversityHangzhouZhejiang310058China
| | - Qiong Zhao
- Department of Genetics, and Department of Genetic and Metabolic DiseaseThe Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouZhejiang310052China
- Zhejiang Provincial Key Laboratory of Genetic and Developmental DisordersInstitute of Genetics, Zhejiang UniversityHangzhouZhejiang310058China
| | - Hui Cang
- Department of Genetics, and Department of Genetic and Metabolic DiseaseThe Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouZhejiang310052China
- Zhejiang Provincial Key Laboratory of Genetic and Developmental DisordersInstitute of Genetics, Zhejiang UniversityHangzhouZhejiang310058China
| | - Ziqiang Wang
- Department of Genetics, and Department of Genetic and Metabolic DiseaseThe Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouZhejiang310052China
- Zhejiang Provincial Key Laboratory of Genetic and Developmental DisordersInstitute of Genetics, Zhejiang UniversityHangzhouZhejiang310058China
| | - Xiaojia Hu
- Department of Genetics, and Department of Genetic and Metabolic DiseaseThe Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouZhejiang310052China
- Zhejiang Provincial Key Laboratory of Genetic and Developmental DisordersInstitute of Genetics, Zhejiang UniversityHangzhouZhejiang310058China
| | - Ruolang Pan
- Zhejiang Provincial Key Laboratory of Cell‐Based Drug and Applied Technology DevelopmentInstitute for Cell‐Based Drug Development of Zhejiang ProvinceS‐Evans BiosciencesHangzhouZhejiang310023China
| | - Yang Yang
- Bone Marrow Transplantation Center, Institute of Hematology, The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310004China
| | - Ye Chen
- Department of Genetics, and Department of Genetic and Metabolic DiseaseThe Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouZhejiang310052China
- Zhejiang Provincial Key Laboratory of Genetic and Developmental DisordersInstitute of Genetics, Zhejiang UniversityHangzhouZhejiang310058China
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Liu Y, Hu YJ, Fan WX, Quan X, Xu B, Li SZ. O-GlcNAcylation: The Underestimated Emerging Regulators of Skeletal Muscle Physiology. Cells 2022; 11:cells11111789. [PMID: 35681484 PMCID: PMC9180116 DOI: 10.3390/cells11111789] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 02/04/2023] Open
Abstract
O-GlcNAcylation is a highly dynamic, reversible and atypical glycosylation that regulates the activity, biological function, stability, sublocation and interaction of target proteins. O-GlcNAcylation receives and coordinates different signal inputs as an intracellular integrator similar to the nutrient sensor and stress receptor, which target multiple substrates with spatio-temporal analysis specifically to maintain cellular homeostasis and normal physiological functions. Our review gives a brief description of O-GlcNAcylation and its only two processing enzymes and HBP flux, which will help to better understand its physiological characteristics of sensing nutrition and environmental cues. This nutritional and stress-sensitive properties of O-GlcNAcylation allow it to participate in the precise regulation of skeletal muscle metabolism. This review discusses the mechanism of O-GlcNAcylation to alleviate metabolic disorders and the controversy about the insulin resistance of skeletal muscle. The level of global O-GlcNAcylation is precisely controlled and maintained in the “optimal zone”, and its abnormal changes is a potential factor in the pathogenesis of cancer, neurodegeneration, diabetes and diabetic complications. Although the essential role of O-GlcNAcylation in skeletal muscle physiology has been widely studied and recognized, it still is underestimated and overlooked. This review highlights the latest progress and potential mechanisms of O-GlcNAcylation in the regulation of skeletal muscle contraction and structural properties.
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Affiliation(s)
| | | | | | | | - Bin Xu
- Correspondence: (B.X.); (S.-Z.L.)
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PDK4 Constitutes a Novel Prognostic Biomarker and Therapeutic Target in Gastric Cancer. Diagnostics (Basel) 2022; 12:diagnostics12051101. [PMID: 35626257 PMCID: PMC9139696 DOI: 10.3390/diagnostics12051101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/05/2022] [Accepted: 04/20/2022] [Indexed: 02/04/2023] Open
Abstract
Gastric cancer (GC) is one of the most prevalent and deadly malignancies worldwide. We aimed to assess the functional role and clinical significance of pyruvate dehydrogenase kinase (PDK) in GC and explored the underlying mechanisms. The bioinformatics method was used to investigate the expression of PDKs in GC, the effect on clinical outcomes, enriched pathways, interactive network, and the correlation between PDK4 and immune infiltration. Next, PDK expression in the GC cells and tissues were verified by qRT-PCR and western blotting. A Cell Counting Kit-8 (CCK8), colony-formation, Flow cytometry, Transwell and wound healing assays were carried out to evaluate the influence of PDK4 on cell proliferation, invasion and migration. Among PDKs, PDK4 expression was aberrant in GC and identified as an independent prognostic factor. GO analysis, GSEA, and PPI showed that PDK4 expression may regulate cell adhesion, metal ion transport, synaptic activity, and cancer cell metabolism in GC. Analyses of immune infiltration showed that PDK4 correlated with the abundant expression of various immunocytes. Finally, we verified that upregulation of PDK4 expression enhanced the ability of GC cells to proliferate, migrate, and invade. In conclusion, PDK4 was identified as a potential candidate diagnostic biomarker and therapeutic target for GC patients.
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Kania AK, Price MJ, George-Alexander LE, Patterson DG, Hicks SL, Scharer CD, Boss JM. H3K27me3 Demethylase UTX Restrains Plasma Cell Formation. THE JOURNAL OF IMMUNOLOGY 2022; 208:1873-1885. [PMID: 35346967 PMCID: PMC9012698 DOI: 10.4049/jimmunol.2100948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 02/02/2022] [Indexed: 11/19/2022]
Abstract
B cell differentiation is associated with substantial transcriptional, metabolic, and epigenetic remodeling, including redistribution of histone 3 lysine 27 trimethylation (H3K27me3), which is associated with a repressive chromatin state and gene silencing. Although the role of the methyltransferase EZH2 (Enhancer of zeste homolog 2) in B cell fate decisions has been well established, it is not known whether H3K27me3 demethylation is equally important. In this study, we showed that simultaneous genetic deletion of the two H3K27 demethylases UTX and JMJD3 (double-knockout [Utx fl/fl Jmjd3 fl/fl Cd19 cre/+] [dKO]) led to a significant increase in plasma cell (PC) formation after stimulation with the T cell-independent Ags LPS and NP-Ficoll. This phenotype occurred in a UTX-dependent manner as UTX single-knockout mice, but not JMJD3 single-knockout mice, mimicked the dKO. Although UTX- and JMJD3-deficient marginal zone B cells showed increased proliferation, dKO follicular B cells also showed increased PC formation. PCs from dKO mice upregulated genes associated with oxidative phosphorylation and exhibited increased spare respiratory capacity. Mechanistically, deletion of Utx and Jmjd3 resulted in higher levels of H3K27me3 at proapoptotic genes and resulted in reduced apoptosis of dKO PCs in vivo. Furthermore, UTX regulated chromatin accessibility at regions containing ETS and IFN regulatory factor (IRF) transcription factor family motifs, including motifs of known repressors of PC fate. Taken together, these data demonstrate that the H3K27me3 demethylases restrain B cell differentiation.
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Affiliation(s)
- Anna K Kania
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA
| | - Madeline J Price
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA
| | | | - Dillon G Patterson
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA
| | - Sakeenah L Hicks
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA
| | - Christopher D Scharer
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA
| | - Jeremy M Boss
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA
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44
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Goyal M, Tomar A, Madhwal S, Mukherjee T. Blood progenitor redox homeostasis through olfaction-derived systemic GABA in hematopoietic growth control in Drosophila. Development 2022; 149:273541. [PMID: 34850846 PMCID: PMC8733872 DOI: 10.1242/dev.199550] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 09/24/2021] [Indexed: 12/20/2022]
Abstract
The role of reactive oxygen species (ROS) in myeloid development is well established. However, its aberrant generation alters hematopoiesis. Thus, a comprehensive understanding of events controlling ROS homeostasis forms the central focus of this study. We show that, in homeostasis, myeloid-like blood progenitor cells of the Drosophila larvae, which reside in a specialized hematopoietic organ termed the lymph gland, use TCA to generate ROS. However, excessive ROS production leads to lymph gland growth retardation. Therefore, to moderate blood progenitor ROS, Drosophila larvae rely on olfaction and its downstream systemic GABA. GABA internalization and its breakdown into succinate by progenitor cells activates pyruvate dehydrogenase kinase (PDK), which controls inhibitory phosphorylation of pyruvate dehydrogenase (PDH). PDH is the rate-limiting enzyme that connects pyruvate to the TCA cycle and to oxidative phosphorylation. Thus, GABA metabolism via PDK activation maintains TCA activity and blood progenitor ROS homeostasis, and supports normal lymph gland growth. Consequently, animals that fail to smell also fail to sustain TCA activity and ROS homeostasis, which leads to lymph gland growth retardation. Overall, this study describes the requirement of animal odor-sensing and GABA in myeloid ROS regulation and hematopoietic growth control. Summary: Ablation of olfactory receptor neurons reveals that odor-sensing and GABA are involved in myeloid reactive oxygen species regulation and hematopoietic growth control.
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Affiliation(s)
- Manisha Goyal
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK, Bellary Road, Bangalore 560065, India.,The University of Trans-Disciplinary Health Sciences and Technology (TDU), Bengaluru, Karnataka 560064, India
| | - Ajay Tomar
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK, Bellary Road, Bangalore 560065, India.,The University of Trans-Disciplinary Health Sciences and Technology (TDU), Bengaluru, Karnataka 560064, India
| | - Sukanya Madhwal
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK, Bellary Road, Bangalore 560065, India.,Manipal Academy of Higher Education, Manipal, Karnataka 576104, India
| | - Tina Mukherjee
- Institute for Stem Cell Science and Regenerative Medicine (inStem), GKVK, Bellary Road, Bangalore 560065, India
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Gao X, Gao YY, Yan HY, Liu GJ, Zhou Y, Tao T, Yue TT, Pang C, Chen XX, Gao S, Wu LY, Hang CH, Li W. PDK4 Decrease Neuronal Apoptosis via Inhibiting ROS-ASK1/P38 Pathway in Early Brain Injury After Subarachnoid Hemorrhage. Antioxid Redox Signal 2022; 36:505-524. [PMID: 34498942 DOI: 10.1089/ars.2021.0083] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Aims: Metabolic disorders may play key roles in oxidative stress and neuronal apoptosis in response to early brain injury (EBI) after subarachnoid hemorrhage (SAH). Pyruvate dehydrogenase (PDH) is related to oxidative stress in EBI, and its activity obviously decreases after SAH. We discovered that only pyruvate dehydrogenase kinase 4 (PDK4) expression was obviously increased among the four PDK isozymes after SAH in preliminary experiments. Therefore, we attempted to investigate the effects and corresponding mechanisms of PDK4 on oxidative stress after SAH. Results: First, we confirmed that PDK4 overexpression promoted PDH phosphorylation, inhibited PDH activity, and changed cell metabolism after SAH. A small interfering RNA (siRNA) targeting PDK4, a lentiviral PDK4 overexpression vector, and dichloroacetic acid (DCA) were used to regulate the expression and activity of PDK4. The siRNA decreased PDH phosphorylation, promoted reactive oxygen species (ROS) production, activated the apoptosis signal-regulating kinase 1 (ASK1)/P38 pathway, and induced neuronal apoptosis. The lentivirus further attenuated PDH activity, oxidative stress, and neuronal apoptosis. DCA inhibited the activity of PDK4, but increased the expression of PDK4 due to a feedback mechanism. Inactivated PDK4 did not effectively suppress PDH activity, which increased ROS production, activated the ASK1/P38 pathway, and led to neuronal apoptosis. Innovation: This study provides new insights into the potential antioxidant and antiapoptotic effects of the PDK4-PDH axis on EBI after SAH. Conclusions: The early overexpression of PDK4 after SAH may attenuate neuronal apoptosis by reducing oxidative stress via the ROS/ASK1/P38 pathway. PDK4 may be a new potential therapeutic target to ameliorate EBI after SAH. Antioxid. Redox Signal. 36, 505-524.
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Affiliation(s)
- Xuan Gao
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yong-Yue Gao
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Hui-Ying Yan
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Guang-Jie Liu
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yan Zhou
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Tao Tao
- Department of Neurosurgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Ting-Ting Yue
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Cong Pang
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Xiang-Xin Chen
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Sen Gao
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Ling-Yun Wu
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Chun-Hua Hang
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Wei Li
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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Damerau A, Kirchner M, Pfeiffenberger M, Ehlers L, Do Nguyen DH, Mertins P, Bartek B, Maleitzke T, Palmowski Y, Hardt S, Winkler T, Buttgereit F, Gaber T. Metabolic reprogramming of synovial fibroblasts in osteoarthritis by inhibition of pathologically overexpressed pyruvate dehydrogenase kinases. Metab Eng 2022; 72:116-132. [DOI: 10.1016/j.ymben.2022.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 03/07/2022] [Accepted: 03/10/2022] [Indexed: 10/18/2022]
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Yu Q, Chen W, Li Y, He J, Wang Y, Yang S, Zhou J. The novel circular RNA HIPK3 accelerates the proliferation and invasion of hepatocellular carcinoma cells by sponging the micro RNA-124 or micro RNA-506/pyruvate dehydrogenase kinase 2 axis. Bioengineered 2022; 13:4717-4729. [PMID: 35212603 PMCID: PMC8974013 DOI: 10.1080/21655979.2022.2031398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Circular RNAs (circRNAs) have been confirmed to be associated with the progression of various cancers, including hepatocellular carcinoma (HCC). However, the role and mechanism of circHIPK3 in HCC are still unclear. To investigate its function, circHIPK3 expression was first determined by RT–qPCR in HCC tissues or cells. Functionally, cell proliferation and invasion were investigated by CCK-8, EdU, or Transwell assays. In terms of understanding the mechanism, the interaction of the circRNA HIPK3/micro RNA 124 (miRNA 124) or micro RNA 506 (miRNA506) /PDK2 regulatory loop was verified by dual-luciferase reporter gene assay. In addition, a xenograft tumor model was established to confirm the impact of circHIPK3 on the growth of HCC cells in vivo. We found that circHIPK3 was upregulated in HCC patients and associated with clinical characteristics, while miR-124 and miR-506 were downregulated in HCC patients. Additionally, we proved that knock down of circHIPK3 remarkably suppressed the proliferation and invasion of HCC cells. Mechanistically, circHIPK3 directly bound to miR-124 or miR-506 and inhibited their expression, and PDK2 was a target gene of miR-124 or miR-506. Moreover, circHIPK3 overexpression reversed the inhibitory effect of miR-124 or miR-506 on HCC progression. miR-124 or miR-506 could also suppress tumorigenesis of HCC cells by PDK2. Furthermore, in vivo evidence confirmed that knock down of circHIPK3 inhibited tumor formation. We suggest that circHIPK3 can accelerate the proliferation and invasion of HCC cells by sponging miR-124 or miR-506 to upregulate PDK2, which is the underlying mechanism of circHIPK3-induced HCC progression.
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Affiliation(s)
- Qiangfeng Yu
- The Second Department of General Surgery, Zhuhai People's Hospital, Zhuhai, China
| | - Wenxiang Chen
- Department of Hepatobiliary and Pancreatic Surgery, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Yiming Li
- Department of Hepatobiliary and Pancreatic Surgery, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Jun He
- Department of Hepatobiliary and Pancreatic Surgery, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Yu Wang
- Department of Hepatobiliary and Pancreatic Surgery, Zhongshan Hospital, Xiamen University, Xiamen, China
| | - Sijia Yang
- The Second Department of General Surgery, Zhuhai People's Hospital, Zhuhai, China
| | - Jianyin Zhou
- Department of Hepatobiliary and Pancreatic Surgery, Zhongshan Hospital, Xiamen University, Xiamen, China
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48
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Rabe P, Liebing AD, Krumbholz P, Kraft R, Stäubert C. Succinate receptor 1 inhibits mitochondrial respiration in cancer cells addicted to glutamine. Cancer Lett 2022; 526:91-102. [PMID: 34813893 DOI: 10.1016/j.canlet.2021.11.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/05/2021] [Accepted: 11/17/2021] [Indexed: 12/22/2022]
Abstract
Cancer cells display metabolic alterations to meet the bioenergetic demands for their high proliferation rates. Succinate is a central metabolite of the tricarboxylic acid (TCA) cycle, but was also shown to act as an oncometabolite and to specifically activate the succinate receptor 1 (SUCNR1), which is expressed in several types of cancer. However, functional studies focusing on the connection between SUCNR1 and cancer cell metabolism are still lacking. In the present study, we analyzed the role of SUCNR1 for cancer cell metabolism and survival applying different signal transduction, metabolic and imaging analyses. We chose a gastric, a lung and a pancreatic cancer cell line for which our data revealed functional expression of SUCNR1. Further, presence of glutamine (Gln) caused high respiratory rates and elevated expression of SUCNR1. Knockdown of SUCNR1 resulted in a significant increase of mitochondrial respiration and superoxide production accompanied by an increase in TCA cycle throughput and a reduction of cancer cell survival in the analyzed cancer cell lines. Combination of SUCNR1 knockdown and treatment with the chemotherapeutics cisplatin and gemcitabine further increased cancer cell death. In summary, our data implicates that SUCNR1 is crucial for Gln-addicted cancer cells by limiting TCA cycle throughput, mitochondrial respiration and the production of reactive oxygen species, highlighting its potential as a pharmacological target for cancer treatment.
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Affiliation(s)
- Philipp Rabe
- Rudolf Schönheimer Institute of Biochemistry, Faculty of Medicine, Leipzig University, Johannisallee 30, 04103, Leipzig, Germany
| | - Aenne-Dorothea Liebing
- Rudolf Schönheimer Institute of Biochemistry, Faculty of Medicine, Leipzig University, Johannisallee 30, 04103, Leipzig, Germany
| | - Petra Krumbholz
- Rudolf Schönheimer Institute of Biochemistry, Faculty of Medicine, Leipzig University, Johannisallee 30, 04103, Leipzig, Germany
| | - Robert Kraft
- Carl Ludwig Institute for Physiology, Faculty of Medicine, Leipzig University, Liebigstraße 27, 04103, Leipzig, Germany
| | - Claudia Stäubert
- Rudolf Schönheimer Institute of Biochemistry, Faculty of Medicine, Leipzig University, Johannisallee 30, 04103, Leipzig, Germany.
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49
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Zhou Y, Guo Y, Tam KY. Targeting glucose metabolism to develop anticancer treatments and therapeutic patents. Expert Opin Ther Pat 2022; 32:441-453. [PMID: 35001793 DOI: 10.1080/13543776.2022.2027912] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION One of the most distinctive hallmarks of cancer cells is increased glucose consumption for aerobic glycolysis which is named the Warburg effect. In recent decades, extensive research has been carried out to exploit this famous phenomenon, trying to detect promising targetable vulnerabilities in altered metabolism to fight cancer. Targeting aberrant glucose metabolism can perturb cancer malignant proliferation and even induce programmed cell death. AREAS COVERED This review covered the recent patents which focused on targeting key glycolytic enzymes including hexokinase, pyruvate dehydrogenase kinases and lactate dehydrogenase for cancer treatment. EXPERT OPINION Compared with the conventional cancer treatment, specifically targeting the well-known Achilles heel Warburg effect has attracted considerable attention. Although there is still no single glycolytic agent for clinical cancer treatment, the combination of glycolytic inhibitor with conventional anticancer drug or the combined use of multiple glycolytic inhibitors are being investigated extensively in recent years, which could emerge as attractive anticancer strategies.
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Affiliation(s)
- Yan Zhou
- Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau SAR, PR China
| | - Yizhen Guo
- Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau SAR, PR China
| | - Kin Yip Tam
- Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau SAR, PR China
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50
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Kawano Y, Sasano T, Arima Y, Kushima S, Tsujita K, Matsuoka M, Hata H. A novel PDK1 inhibitor, JX06, inhibits glycolysis and induces apoptosis in multiple myeloma cells. Biochem Biophys Res Commun 2022; 587:153-159. [PMID: 34875534 DOI: 10.1016/j.bbrc.2021.11.102] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 12/20/2022]
Abstract
Pyruvate dehydrogenase kinase 1 (PDK1) is a Ser/Thr kinase that inactivates mitochondrial pyruvate dehydrogenase (PDH), leading to switch of glucose metabolism from mitochondrial oxidation to aerobic glycolysis. We previously reported that PDK1 inhibition is a potent therapeutic strategy in multiple myeloma (MM). However, availability of PDK1 inhibitors, which are effective at low concentrations, are limited at present, making PDK1 inhibition difficult to apply in the clinic. In the present study, we examined the efficacy and mechanism of action of JX06, a novel PDK1 inhibitor, against MM cells. We confirmed that PDK1 is highly expressed in normal plasma cells and MM cells using publicly available gene expression datasets. JX06 suppressed cell growth and induced apoptosis against MM cells from approximately 0.5 μM JX06 treatment reduced PDH phosphorylation, suggesting that JX06 is indeed inhibiting PDK1. Intracellular metabolite analysis revealed that JX06 treatment reduced metabolites associated with glucose metabolism of MM cells. Additionally, JX06 in combination with a well-known proteasome inhibitor, bortezomib, significantly increased MM cell death, which raises the possibility of combination use of JX06 with proteasome inhibitors in the clinic. These findings demonstrate that PDK1 can be potentially targeted by JX06 in MM through glycolysis inhibition, leading to a novel therapeutic strategy in MM.
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Affiliation(s)
- Yawara Kawano
- Department of Hematology, Rheumatology, and Infectious Diseases, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.
| | - Takayuki Sasano
- Division of Informative Clinical Sciences, Faculty of Medical Sciences, Kumamoto University, 4-24-1 Kuhonji, Chuo-ku, Kumamoto, 862-0976, Japan
| | - Yuichiro Arima
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan; International Research Center for Medical Sciences (IRCMS), Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto, 860-0811, Japan
| | - Saki Kushima
- Division of Informative Clinical Sciences, Faculty of Medical Sciences, Kumamoto University, 4-24-1 Kuhonji, Chuo-ku, Kumamoto, 862-0976, Japan
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Masao Matsuoka
- Department of Hematology, Rheumatology, and Infectious Diseases, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Hiroyuki Hata
- Division of Informative Clinical Sciences, Faculty of Medical Sciences, Kumamoto University, 4-24-1 Kuhonji, Chuo-ku, Kumamoto, 862-0976, Japan
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