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Zhang Z, Tai Y, Liu Z, Pu Y, An L, Li X, Li L, Wang Y, Yang Z, Duan C, Hou K, Zhang Q, Ren F, Ma Q, Su Y. Effects of d-ribose on human erythrocytes: Non-enzymatic glycation of hemoglobin, eryptosis, oxidative stress and energy metabolism. Blood Cells Mol Dis 2023; 99:102725. [PMID: 36682143 DOI: 10.1016/j.bcmd.2023.102725] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 01/10/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
d-Ribose is not only an important component of some biomacromolecules, but also an active pentose with strong reducibility and non-enzymatic glycation ability. Previous studies reported the diverse role of d-ribose in different cells. In this study, the effects of d-ribose on non-enzymatic glycation of hemoglobin (Hb), as well as eryptosis, oxidative stress and energy metabolism of erythrocytes were observed by molecular fluorescence spectrophotometry, multi-wavelength spectrophotometry, high-pressure liquid chromatography (HPLC), mass spectrometry (MS) and flow cytometer. The results showed that d-ribose had the strongest non-enzymatic glycation ability to Hb in vitro when compared with other monosaccharides, and could enter the erythrocytes in a concentration-dependent manner, which was not inhibited by the specific glucose transporter 1 (GLUT1) inhibitor WZB117. In addition, d-ribose incubation increased the HbA1c, hemolysis, eryptosis, and ROS level of erythrocytes significantly more than that of d-glucose, however, no changes were observed in the levels of ATP, NADPH, and other intermediate energy metabolites in d-ribose treatment. Therefore, the strong non-enzymatic glycation ability of d-ribose may play an important role in erythrocyte damage.
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Affiliation(s)
- Zehong Zhang
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China
| | - Yu Tai
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China
| | - Zhi Liu
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China
| | - Yunxia Pu
- Physical and Chemical Laboratory, Inner Mongolia Center for Disease Control and Prevention, South Section of Yongping Road, Xincheng District, 010080 Hohhot, Inner Mongolia, China
| | - Liang An
- Clinical Laboratory, The Fourth Hospital of Baotou, 1(#) Aogen Road, Qingshan District, 014030, Baotou, Inner Mongolia, China
| | - Xiaojing Li
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China
| | - Lili Li
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China
| | - Yaqi Wang
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China
| | - Zhongbin Yang
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China
| | - Chao Duan
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China
| | - Kun Hou
- Physical and Chemical Laboratory, Inner Mongolia Center for Disease Control and Prevention, South Section of Yongping Road, Xincheng District, 010080 Hohhot, Inner Mongolia, China
| | - Qing Zhang
- Physical and Chemical Laboratory, Inner Mongolia Center for Disease Control and Prevention, South Section of Yongping Road, Xincheng District, 010080 Hohhot, Inner Mongolia, China
| | - Fuyu Ren
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China
| | - Qiang Ma
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China.
| | - Yan Su
- Institute of Blood Conservation, Baotou Medical College, 31# Jianshe Road, Donghe District, 014040 Baotou, Inner Mongolia, China.
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Creatine Supplementation to Improve Sarcopenia in Chronic Liver Disease: Facts and Perspectives. Nutrients 2023; 15:nu15040863. [PMID: 36839220 PMCID: PMC9958770 DOI: 10.3390/nu15040863] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 02/10/2023] Open
Abstract
Creatine supplementation has been one of the most studied and useful ergogenic nutritional support for athletes to improve performance, strength, and muscular mass. Over time creatine has shown beneficial effects in several human disease conditions. This review aims to summarise the current evidence for creatine supplementation in advanced chronic liver disease and its complications, primarily in sarcopenic cirrhotic patients, because this condition is known to be associated with poor prognosis and outcomes. Although creatine supplementation in chronic liver disease seems to be barely investigated and not studied in human patients, its potential efficacy on chronic liver disease is indirectly highlighted in animal models of non-alcoholic fatty liver disease, bringing beneficial effects in the fatty liver. Similarly, encephalopathy and fatigue seem to have beneficial effects. Creatine supplementation has demonstrated effects in sarcopenia in the elderly with and without resistance training suggesting a potential role in improving this condition in patients with advanced chronic liver disease. Creatine supplementation could address several critical points of chronic liver disease and its complications. Further studies are needed to support the clinical burden of this hypothesis.
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Zhang S, Rao S, Yang M, Ma C, Hong F, Yang S. Role of Mitochondrial Pathways in Cell Apoptosis during He-Patic Ischemia/Reperfusion Injury. Int J Mol Sci 2022; 23:ijms23042357. [PMID: 35216473 PMCID: PMC8877300 DOI: 10.3390/ijms23042357] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/13/2022] [Accepted: 02/17/2022] [Indexed: 12/15/2022] Open
Abstract
Hepatic ischemia-reperfusion injury is a major cause of post-operative hepatic dysfunction and liver failure after transplantation. Mitochondrial pathways can be either beneficial or detrimental to hepatic cell apoptosis during hepatic ischemia/reperfusion injury, depending on multiple factors. Hepatic ischemia/reperfusion injury may be induced by opened mitochondrial permeability transition pore, released apoptosis-related proteins, up-regulated B-cell lymphoma-2 gene family proteins, unbalanced mitochondrial dynamics, and endoplasmic reticulum stress, which are integral parts of mitochondrial pathways. In this review, we discuss the role of mitochondrial pathways in apoptosis that account for the most deleterious effect of hepatic ischemia/reperfusion injury.
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Affiliation(s)
- Sen Zhang
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, China; (S.Z.); (S.R.); (C.M.)
- Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, China
| | - Sijing Rao
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, China; (S.Z.); (S.R.); (C.M.)
- Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, China
| | - Meiwen Yang
- Department of Surgery, Fuzhou Medical College, Nanchang University, Fuzhou 344099, China;
| | - Chen Ma
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, China; (S.Z.); (S.R.); (C.M.)
- Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, China
| | - Fengfang Hong
- Experimental Center of Pathogen Biology, College of Medicine, Nanchang University, Nanchang 330006, China; (S.Z.); (S.R.); (C.M.)
- Correspondence: (F.H.); or (S.Y.)
| | - Shulong Yang
- Department of Physiology, College of Medicine, Nanchang University, Nanchang 330006, China
- Department of Physiology, Fuzhou Medical College, Nanchang University, Fuzhou 344099, China
- Correspondence: (F.H.); or (S.Y.)
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Supplementing Soy-Based Diet with Creatine in Rats: Implications for Cardiac Cell Signaling and Response to Doxorubicin. Nutrients 2022; 14:nu14030583. [PMID: 35276943 PMCID: PMC8840593 DOI: 10.3390/nu14030583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 01/16/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023] Open
Abstract
Nutritional habits can have a significant impact on cardiovascular health and disease. This may also apply to cardiotoxicity caused as a frequent side effect of chemotherapeutic drugs, such as doxorubicin (DXR). The aim of this work was to analyze if diet, in particular creatine (Cr) supplementation, can modulate cardiac biochemical (energy status, oxidative damage and antioxidant capacity, DNA integrity, cell signaling) and functional parameters at baseline and upon DXR treatment. Here, male Wistar rats were fed for 4 weeks with either standard rodent diet (NORMAL), soy-based diet (SOY), or Cr-supplemented soy-based diet (SOY + Cr). Hearts were either freeze-clamped in situ or following ex vivo Langendorff perfusion without or with 25 μM DXR and after recording cardiac function. The diets had distinct cardiac effects. Soy-based diet (SOY vs. NORMAL) did not alter cardiac performance but increased phosphorylation of acetyl-CoA carboxylase (ACC), indicating activation of rather pro-catabolic AMP-activated protein kinase (AMPK) signaling, consistent with increased ADP/ATP ratios and lower lipid peroxidation. Creatine addition to the soy-based diet (SOY + Cr vs. SOY) slightly increased left ventricular developed pressure (LVDP) and contractility dp/dt, as measured at baseline in perfused heart, and resulted in activation of the rather pro-anabolic protein kinases Akt and ERK. Challenging perfused heart with DXR, as analyzed across all nutritional regimens, deteriorated most cardiac functional parameters and also altered activation of the AMPK, ERK, and Akt signaling pathways. Despite partial reprogramming of cell signaling and metabolism in the rat heart, diet did not modify the functional response to supraclinical DXR concentrations in the used acute cardiotoxicity model. However, the long-term effect of these diets on cardiac sensitivity to chronic and clinically relevant DXR doses remains to be established.
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Creatine Supplementation for Patients with Inflammatory Bowel Diseases: A Scientific Rationale for a Clinical Trial. Nutrients 2021; 13:nu13051429. [PMID: 33922654 PMCID: PMC8145094 DOI: 10.3390/nu13051429] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/18/2021] [Accepted: 04/22/2021] [Indexed: 12/12/2022] Open
Abstract
Based on theoretical considerations, experimental data with cells in vitro, animal studies in vivo, as well as a single case pilot study with one colitis patient, a consolidated hypothesis can be put forward, stating that “oral supplementation with creatine monohydrate (Cr), a pleiotropic cellular energy precursor, is likely to be effective in inducing a favorable response and/or remission in patients with inflammatory bowel diseases (IBD), like ulcerative colitis and/or Crohn’s disease”. A current pilot clinical trial that incorporates the use of oral Cr at a dose of 2 × 7 g per day, over an initial period of 2 months in conjunction with ongoing therapies (NCT02463305) will be informative for the proposed larger, more long-term Cr supplementation study of 2 × 3–5 g of Cr per day for a time of 3–6 months. This strategy should be insightful to the potential for Cr in reducing or alleviating the symptoms of IBD. Supplementation with chemically pure Cr, a natural nutritional supplement, is well tolerated not only by healthy subjects, but also by patients with diverse neuromuscular diseases. If the outcome of such a clinical pilot study with Cr as monotherapy or in conjunction with metformin were positive, oral Cr supplementation could then be used in the future as potentially useful adjuvant therapeutic intervention for patients with IBD, preferably together with standard medication used for treating patients with chronic ulcerative colitis and/or Crohn’s disease.
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Derosa G, Pasqualotto S, Catena G, D’Angelo A, Maggi A, Maffioli P. A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Effectiveness of a Food Supplement Containing Creatine and D-Ribose Combined with a Physical Exercise Program in Increasing Stress Tolerance in Patients with Ischemic Heart Disease. Nutrients 2019; 11:nu11123075. [PMID: 31861049 PMCID: PMC6950237 DOI: 10.3390/nu11123075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/04/2019] [Accepted: 12/10/2019] [Indexed: 11/16/2022] Open
Abstract
The aim of this study is to establish whether a supplement of creatine and ribose combined with a physical exercise program can improve the total work capacity during exercise in a population of patients with known ischemic heart disease. A double-blind, six-month study was designed in which 53 patients were enrolled and randomized to take either a nutraceutical composition containing creatine, D-ribose, vitamin B1, and vitamin B6 (active treatment) or the placebo. Both the nutraceutical supplement and the placebo were supplied by Giellepi S.p.A. Health Science in Lissone, Italy. After six months of study, the cardiac double product at the peak of the load, the delta double product, and the chronotropic index were higher in the active treatment group than in the placebo group. We can conclude that a supplementation with creatine, D-ribose, vitamin B1, and vitamin B6, in addition to standard therapy and a physical exercise program, seems to be helpful in improving exercise tolerance compared to the placebo in a population with cardiovascular disease. However, this needs to be further studied, given that there is no clear evidence that the double product can be used as a surrogate measure of exercise tolerance.
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Affiliation(s)
- Giuseppe Derosa
- Department of Internal Medicine and Therapeutics, University of Pavia and Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (A.D.); (P.M.)
- Center for the Study of Endocrine-Metabolic Pathophysiology and Clinical Research, University of Pavia, 27100 Pavia, Italy
- Laboratory of Molecular Medicine, University of Pavia, 27100 Pavia, Italy
- Correspondence: ; Tel.: +39-0382-526217; Fax: +39-0382-526259
| | - Silvia Pasqualotto
- Section of Cardiology, Department of Medicine, University of Verona, 37017 Verona, Italy;
| | | | - Angela D’Angelo
- Department of Internal Medicine and Therapeutics, University of Pavia and Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (A.D.); (P.M.)
- Laboratory of Molecular Medicine, University of Pavia, 27100 Pavia, Italy
| | - Antonio Maggi
- Cardiologic Unit, Poliambulanza Foundation, 25020 Brescia, Italy;
| | - Pamela Maffioli
- Department of Internal Medicine and Therapeutics, University of Pavia and Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy; (A.D.); (P.M.)
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7
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Santacruz L, Arciniegas AJL, Darrabie M, Mantilla JG, Baron RM, Bowles DE, Mishra R, Jacobs DO. Hypoxia decreases creatine uptake in cardiomyocytes, while creatine supplementation enhances HIF activation. Physiol Rep 2018; 5:5/16/e13382. [PMID: 28821596 PMCID: PMC5582266 DOI: 10.14814/phy2.13382] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 07/18/2017] [Indexed: 12/23/2022] Open
Abstract
Creatine (Cr), phosphocreatine (PCr), and creatine kinases (CK) comprise an energy shuttle linking ATP production in mitochondria with cellular consumption sites. Myocytes cannot synthesize Cr: these cells depend on uptake across the cell membrane by a specialized creatine transporter (CrT) to maintain intracellular Cr levels. Hypoxia interferes with energy metabolism, including the activity of the creatine energy shuttle, and therefore affects intracellular ATP and PCr levels. Here, we report that exposing cultured cardiomyocytes to low oxygen levels rapidly diminishes Cr transport by decreasing Vmax and Km. Pharmacological activation of AMP‐activated kinase (AMPK) abrogated the reduction in Cr transport caused by hypoxia. Cr supplementation increases ATP and PCr content in cardiomyocytes subjected to hypoxia, while also significantly augmenting the cellular adaptive response to hypoxia mediated by HIF‐1 activation. Our results indicate that: (1) hypoxia reduces Cr transport in cardiomyocytes in culture, (2) the cytoprotective effects of Cr supplementation are related to enhanced adaptive physiological responses to hypoxia mediated by HIF‐1, and (3) Cr supplementation increases the cellular ATP and PCr content in RNCMs exposed to hypoxia.
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Affiliation(s)
- Lucia Santacruz
- Department of Molecular Biology and Biochemistry, The University of Texas Medical Branch, Galveston, Texas .,Department of Natural Sciences, Bowie State University, Bowie, Maryland
| | - Antonio Jose Luis Arciniegas
- Department of Medicine, Pulmonary and Critical Care Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | | | | | - Rebecca M Baron
- Department of Medicine, Pulmonary and Critical Care Division, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Dawn E Bowles
- Duke University Medical Center, Durham, North Carolina
| | | | - Danny O Jacobs
- Department of Surgery, The University of Texas Medical Branch, Galveston, Texas.,Institute for Translational Sciences, University of Texas Medical Branch, Galveston, Texas
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8
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Fabiani C, Zulueta A, Bonezzi F, Casas J, Ghidoni R, Signorelli P, Caretti A. 2-Acetyl-5-tetrahydroxybutyl imidazole (THI) protects 661W cells against oxidative stress. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:741-751. [DOI: 10.1007/s00210-017-1374-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 04/04/2017] [Indexed: 12/13/2022]
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9
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Wallimann T, Riek U, Möddel M. Intradialytic creatine supplementation: A scientific rationale for improving the health and quality of life of dialysis patients. Med Hypotheses 2017; 99:1-14. [DOI: 10.1016/j.mehy.2016.12.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 12/03/2016] [Indexed: 12/19/2022]
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10
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Aronica A, Avagliano L, Caretti A, Tosi D, Bulfamante GP, Trinchera M. Unexpected distribution of CA19.9 and other type 1 chain Lewis antigens in normal and cancer tissues of colon and pancreas: Importance of the detection method and role of glycosyltransferase regulation. Biochim Biophys Acta Gen Subj 2016; 1861:3210-3220. [PMID: 27535614 DOI: 10.1016/j.bbagen.2016.08.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/29/2016] [Accepted: 08/12/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND CA19.9 antigen has been assumed as an abundant product of cancer cells, due to the reactivity found by immunohistochemical staining of cancer tissues with anti-CA19.9 antibody. METHODS Expression and biosynthesis of type 1 chain Lewis antigens in the colon and the pancreas were studied by immunodetection in tissue sections and lysates, quantification of glycosyltransferase transcripts, bisulfite sequencing, and chromatin immunoprecipitation assays. RESULTS CA19.9 was poorly detectable in normal colon mucosa and almost undetectable in colon cancer, while it was easily detected in the pancreatic ducts, together with Lewis b antigen, under both normal and cancer conditions. B3GALT5 transcripts were down-regulated in colon cancer, while they remained expressed in pancreatic cancer. Even ST3GAL3 transcript appeared well expressed in the pancreas but poorly in the colon, irrespective of normal or cancer conditions. CpG islands flanking B3GALT5 native promoter presented an extremely low degree of methylation in pancreatic cancer with respect to colon cancer. In a DNA region about 1kb away from the B3GALT5 retroviral promoter, a stretch of CG dinucleotides presented a methylation pattern potentially associated with transcription. Such a DNA region and the transcription factor binding site provided overlapping results by chromatin immunoprecipitation assays, corroborating the hypothesis. CONCLUSIONS CA19.9 appears as a physiological product whose synthesis strongly depends on the tissue specific and epigenetically-regulated expression of B3GALT5 and ST3GAL3. GENERAL SIGNIFICANCE CA19.9 and other Lewis antigens acquire tumor marker properties in the pancreas due to mechanisms giving rise to reabsorption into vessels and elevation in circulating levels.
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Affiliation(s)
- Adele Aronica
- Department of Health Sciences, San Paolo Hospital Medical School, University of Milan, 20142 Milano, Italy
| | - Laura Avagliano
- Department of Health Sciences, San Paolo Hospital Medical School, University of Milan, 20142 Milano, Italy
| | - Anna Caretti
- Department of Health Sciences, San Paolo Hospital Medical School, University of Milan, 20142 Milano, Italy
| | - Delfina Tosi
- Department of Health Sciences, San Paolo Hospital Medical School, University of Milan, 20142 Milano, Italy
| | - Gaetano Pietro Bulfamante
- Department of Health Sciences, San Paolo Hospital Medical School, University of Milan, 20142 Milano, Italy; Unit of Human Pathology, Cytogenetics and Molecular Biology, ASST Santi Paolo e Carlo, 20142 Milano, Italy
| | - Marco Trinchera
- Department of Medicine Clinical and Experimental (DMCS), University of Insubria Medical School, 21100 Varese, Italy.
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Santacruz L, Jacobs DO. Structural correlates of the creatine transporter function regulation: the undiscovered country. Amino Acids 2016; 48:2049-55. [PMID: 26951207 DOI: 10.1007/s00726-016-2206-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Accepted: 02/23/2016] [Indexed: 10/22/2022]
Abstract
Creatine (Cr) and phosphocreatine constitute an energy shuttle that links ATP production in mitochondria to subcellular locations of ATP consumption. Cells in tissues that are reliant on this energy shuttle, such as myocytes and neurons, appear to have very limited ability to synthesize creatine. Therefore, these cells depend on Cr uptake across the cell membrane by a specialized creatine transporter (CrT solute carrier SLC6A8) in order to maintain intracellular creatine levels. Cr supplementation has been shown to have a beneficial effect in numerous in vitro and in vivo models, particularly in cases of oxidative stress, and is also widely used by athletes as a performance enhancement nutraceutical. Intracellular creatine content is maintained within narrow limits. However, the physiological and cellular mechanisms that mediate Cr transport during health and disease (such as cardiac failure) are not understood. In this narrative mini-review, we summarize the last three decades of research on CrT structure, function and regulation.
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Affiliation(s)
- Lucia Santacruz
- Department of Biochemistry and Molecular Biology, University of Texas, Medical Branch, 301 University Boulevard, Galveston, TX, USA.
| | - Danny O Jacobs
- Department of Biochemistry and Molecular Biology, University of Texas, Medical Branch, 301 University Boulevard, Galveston, TX, USA.,Departament of Surgery and the institute for Translational Sciences, University of Texas, Medical Branch, Galveston, USA
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12
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Severe Hyperhomocysteinemia Decreases Respiratory Enzyme and Na(+)-K(+) ATPase Activities, and Leads to Mitochondrial Alterations in Rat Amygdala. Neurotox Res 2015; 29:408-18. [PMID: 26694914 DOI: 10.1007/s12640-015-9587-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 11/13/2015] [Accepted: 12/08/2015] [Indexed: 12/19/2022]
Abstract
Severe hyperhomocysteinemia is caused by increased plasma levels of homocysteine (Hcy), a methionine derivative, and is associated with cerebral disorders. Creatine supplementation has emerged as an adjuvant to protect against neurodegenerative diseases, due to its potential antioxidant role. Here, we examined the effects of severe hyperhomocysteinemia on brain metabolism, and evaluated a possible neuroprotective role of creatine in hyperhomocysteinemia, by concomitant treatment with Hcy and creatine (50 mg/Kg body weight). Hyperhomocysteinemia was induced in young rats (6-day-old) by treatment with homocysteine (0.3-0.6 µmol/g body weight) for 23 days, and then the following parameters of rat amygdala were evaluated: (1) the activity of the respiratory chain complexes succinate dehydrogenase, complex II and cytochrome c oxidase; (2) mitochondrial mass and membrane potential; (3) the levels of necrosis and apoptosis; and (4) the activity and immunocontent of Na(+),K(+)-ATPase. Hcy treatment decreased the activities of succinate dehydrogenase and cytochrome c oxidase, but did not alter complex II activity. Hcy treatment also increased the number of cells with high mitochondrial mass, high mitochondrial membrane potential, and in late apoptosis. Importantly, creatine administration prevented some of the key effects of Hcy administration on the amygdala. We also observed a decrease in the activity and immunocontent of the α1 subunit of the Na(+),K(+)-ATPase in amygdala after Hcy- treatment. Our findings support the notion that Hcy modulates mitochondrial function and bioenergetics in the brain, as well as Na(+),K(+)-ATPase activity, and suggest that creatine might represent an effective adjuvant to protect against the effects of high Hcy plasma levels.
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13
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Kolling J, Scherer EB, Siebert C, Marques EP, dos Santos TM, Wyse AT. Creatine prevents the imbalance of redox homeostasis caused by homocysteine in skeletal muscle of rats. Gene 2014; 545:72-9. [DOI: 10.1016/j.gene.2014.05.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 03/14/2014] [Accepted: 05/01/2014] [Indexed: 12/13/2022]
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14
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Lang F, Föller M. Regulation of ion channels and transporters by AMP-activated kinase (AMPK). Channels (Austin) 2013; 8:20-8. [PMID: 24366036 DOI: 10.4161/chan.27423] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The energy-sensing AMP-activated kinase AMPK ensures survival of energy-depleted cells by stimulating ATP production and limiting ATP utilization. Both energy production and energy consumption are profoundly influenced by transport processes across the cell membane including channels, carriers and pumps. Accordingly, AMPK is a powerful regulator of transport across the cell membrane. AMPK regulates diverse K(+) channels, Na(+) channels, Ca(2+) release activated Ca(2+) channels, Cl(-) channels, gap junctional channels, glucose carriers, Na(+)/H(+)-exchanger, monocarboxylate-, phosphate-, creatine-, amino acid-, peptide- and osmolyte-transporters, Na(+)/Ca(2+)-exchanger, H(+)-ATPase and Na(+)/K(+)-ATPase. AMPK activates ubiquitin ligase Nedd4-2, which labels several plasma membrane proteins for degradation. AMPK further regulates transport proteins by inhibition of Rab GTPase activating protein (GAP) TBC1D1. It stimulates phosphatidylinositol 3-phosphate 5-kinase PIKfyve and inhibits phosphatase and tensin homolog (PTEN) via glycogen synthase kinase 3β (GSK3β). Moreover, it stabilizes F-actin as well as downregulates transcription factor NF-κB. All those cellular effects serve to regulate transport proteins.
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Affiliation(s)
- Florian Lang
- Department of Physiology; University of Tübingen; Tübingen, Germany
| | - Michael Föller
- Department of Physiology; University of Tübingen; Tübingen, Germany
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15
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Zulueta A, Caretti A, Signorelli P, Dall'Olio F, Trinchera M. Transcriptional control of the
B3GALT5
gene by a retroviral promoter and methylation of distant regulatory elements. FASEB J 2013; 28:946-55. [DOI: 10.1096/fj.13-236273] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Aida Zulueta
- Department of Health SciencesSan Paolo HospitalUniversity of MilanMilanItaly
| | - Anna Caretti
- Department of Health SciencesSan Paolo HospitalUniversity of MilanMilanItaly
| | - Paola Signorelli
- Department of Health SciencesSan Paolo HospitalUniversity of MilanMilanItaly
| | - Fabio Dall'Olio
- Department of Experimental, Diagnostic, and Specialty Medicine (DIMES)University of BolognaBolognaItaly
| | - Marco Trinchera
- Department of Medicine Clinical and Experimental (DMCS)University of InsubriaVareseItaly
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zur Nedden S, Doney AS, Frenguelli BG. Modulation of intracellular ATP determines adenosine release and functional outcome in response to metabolic stress in rat hippocampal slices and cerebellar granule cells. J Neurochem 2013; 128:111-24. [PMID: 23937448 DOI: 10.1111/jnc.12397] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/30/2013] [Accepted: 08/06/2013] [Indexed: 11/24/2022]
Abstract
Cerebral ischaemia rapidly depletes cellular ATP. Whilst this deprives brain tissue of a valuable energy source, the concomitant production of adenosine mitigates the damaging effects of energy failure by suppressing neuronal activity. However, the production of adenosine and other metabolites, and their loss across the blood-brain barrier, deprives the brain of substrates for the purine salvage pathway, the primary means by which the brain makes ATP. Because of this, cerebral ATP levels remain depressed after brain injury. To test whether manipulating cellular ATP levels in brain tissue could affect functional neuronal outcomes in response to oxygen/glucose deprivation (OGD), we examined the effects of creatine and d-ribose and adenine (RibAde). In hippocampal slices creatine delayed ATP breakdown, reduced adenosine release, retarded both the depression of synaptic transmission and the anoxic depolarization caused by OGD, and improved the recovery of transmission. In contrast, RibAde increased cellular ATP, caused increased OGD-induced adenosine release and accelerated the depression of synaptic transmission, but did not improve functional recovery. However, RibAde improved the viability of cerebellar granule cells when administered after OGD. Our data indicate that RibAde may be effective in promoting recovery of brain tissue after injury, potentially via enhancement of salvage-mediated ATP production.
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Faller KME, Medway DJ, Aksentijevic D, Sebag-Montefiore L, Schneider JE, Lygate CA, Neubauer S. Ribose Supplementation Alone or with Elevated Creatine Does Not Preserve High Energy Nucleotides or Cardiac Function in the Failing Mouse Heart. PLoS One 2013; 8:e66461. [PMID: 23823183 PMCID: PMC3688916 DOI: 10.1371/journal.pone.0066461] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 05/06/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Reduced levels of creatine and total adenine nucleotides (sum of ATP, ADP and AMP) are hallmarks of chronic heart failure and restoring these pools is predicted to be beneficial by maintaining the diseased heart in a more favourable energy state. Ribose supplementation is thought to support both salvage and re-synthesis of adenine nucleotides by bypassing the rate-limiting step. We therefore tested whether ribose would be beneficial in chronic heart failure in control mice and in mice with elevated myocardial creatine due to overexpression of the creatine transporter (CrT-OE). METHODS AND RESULTS FOUR GROUPS WERE STUDIED: sham; myocardial infarction (MI); MI+ribose; MI+CrT-OE+ribose. In a pilot study, ribose given in drinking water was bioavailable, resulting in a two-fold increase in myocardial ribose-5-phosphate levels. However, 8 weeks post-surgery, total adenine nucleotide (TAN) pool was decreased to a similar amount (8-14%) in all infarcted groups irrespective of the treatment received. All infarcted groups also presented with a similar and substantial degree of left ventricular (LV) dysfunction (3-fold reduction in ejection fraction) and LV hypertrophy (32-47% increased mass). Ejection fraction closely correlated with infarct size independently of treatment (r(2) = 0.63, p<0.0001), but did not correlate with myocardial creatine or TAN levels. CONCLUSION Elevating myocardial ribose and creatine levels failed to maintain TAN pool or improve post-infarction LV remodeling and function. This suggests that ribose is not rate-limiting for purine nucleotide biosynthesis in the chronically failing mouse heart and that alternative strategies to preserve TAN pool should be investigated.
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Affiliation(s)
- Kiterie M. E. Faller
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Debra J. Medway
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Dunja Aksentijevic
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Liam Sebag-Montefiore
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Jürgen E. Schneider
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
| | - Craig A. Lygate
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
- * E-mail:
| | - Stefan Neubauer
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, British Heart Foundation Centre of Research Excellence and Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, United Kingdom
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Lang F, Eylenstein A, Shumilina E. Regulation of Orai1/STIM1 by the kinases SGK1 and AMPK. Cell Calcium 2012; 52:347-54. [PMID: 22682960 DOI: 10.1016/j.ceca.2012.05.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 05/07/2012] [Accepted: 05/09/2012] [Indexed: 01/08/2023]
Abstract
STIM and Orai isoforms orchestrate store operated Ca2+ entry (SOCE) and thus cytosolic Ca2+ fluctuations following stimulation by hormones, growth factors and further mediators. Orai1 is a target of Nedd4-2, an ubiquitin ligase preparing several plasma membrane proteins for degradation. Phosphorylation of Nedd4-2 by the serum and glucocorticoid inducible kinase SGK1 leads to the binding of Nedd4-2 to the protein 14-3-3 thus preventing its interaction with Orai1. Nedd4-2 is activated by the energy sensing AMP activated kinase AMPK. Thus, SGK1 disrupts and AMPK fosters degradation of Orai1. New synthesis of both, Orai1 and STIM1, is stimulated by the transcription factor NF-κB (nuclear factor kappa B), which binds to the respective promoter regions of the genes encoding STIM1 and Orai1. SGK1 upregulates and AMPK presumably downregulates NF-κB and thus de novo synthesis of Orai1 and STIM1 proteins. The regulation by SGK1 links SOCE to the signaling of a wide variety of hormones and growth factors, the AMPK dependent regulation of Orai1 and STIM1 may serve to limit inadequate activation of SOCE following energy depletion, which is otherwise expected to activate SOCE by depletion of intracellular Ca2+ stores due to impairment of the ATP consuming sarco/endoplasmatic reticulum Ca2+ ATPase SERCA.
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Affiliation(s)
- Florian Lang
- Department of Physiology, University of Tübingen, Gmelinstr. 5, D-72076 Tübingen, Germany.
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Wei Y, Han CS, Zhou J, Liu Y, Chen L, He RQ. d-ribose in glycation and protein aggregation. Biochim Biophys Acta Gen Subj 2012; 1820:488-94. [DOI: 10.1016/j.bbagen.2012.01.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 01/05/2012] [Accepted: 01/09/2012] [Indexed: 12/23/2022]
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Caretti A, Sirchia SM, Tabano S, Zulueta A, Dall’Olio F, Trinchera M. DNA methylation and histone modifications modulate the β1,3 galactosyltransferase β3Gal-T5 native promoter in cancer cells. Int J Biochem Cell Biol 2012; 44:84-90. [DOI: 10.1016/j.biocel.2011.09.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 09/19/2011] [Accepted: 09/27/2011] [Indexed: 12/20/2022]
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