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Pfeffer T, Wetzel C, Kirschner P, Bartosova M, Poth T, Schwab C, Poschet G, Zemva J, Bulkescher R, Damgov I, Thiel C, Garbade SF, Klingbeil K, Peters V, Schmitt CP. Carnosinase-1 Knock-Out Reduces Kidney Fibrosis in Type-1 Diabetic Mice on High Fat Diet. Antioxidants (Basel) 2023; 12:1270. [PMID: 37372000 DOI: 10.3390/antiox12061270] [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: 04/24/2023] [Revised: 06/09/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023] Open
Abstract
Carnosine and anserine supplementation markedLy reduce diabetic nephropathy in rodents. The mode of nephroprotective action of both dipeptides in diabetes, via local protection or improved systemic glucose homeostasis, is uncertain. Global carnosinase-1 knockout mice (Cndp1-KO) and wild-type littermates (WT) on a normal diet (ND) and high fat diet (HFD) (n = 10/group), with streptozocin (STZ)-induced type-1 diabetes (n = 21-23/group), were studied for 32 weeks. Independent of diet, Cndp1-KO mice had 2- to 10-fold higher kidney anserine and carnosine concentrations than WT mice, but otherwise a similar kidney metabolome; heart, liver, muscle and serum anserine and carnosine concentrations were not different. Diabetic Cndp1-KO mice did not differ from diabetic WT mice in energy intake, body weight gain, blood glucose, HbA1c, insulin and glucose tolerance with both diets, whereas the diabetes-related increase in kidney advanced glycation end-product and 4-hydroxynonenal concentrations was prevented in the KO mice. Tubular protein accumulation was lower in diabetic ND and HFD Cndp1-KO mice, interstitial inflammation and fibrosis were lower in diabetic HFD Cndp1-KO mice compared to diabetic WT mice. Fatalities occurred later in diabetic ND Cndp1-KO mice versus WT littermates. Independent of systemic glucose homeostasis, increased kidney anserine and carnosine concentrations reduce local glycation and oxidative stress in type-1 diabetic mice, and mitigate interstitial nephropathy in type-1 diabetic mice on HFD.
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Affiliation(s)
- Tilman Pfeffer
- Centre for Paediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany
- Tissue Bank of the German Center for Infection Research (DZIF), Partner Site Heidelberg, Institute of Pathology, Heidelberg University Hospital, 69120 Heidelberg, Germany
| | - Charlotte Wetzel
- Centre for Paediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany
| | - Philip Kirschner
- Centre for Paediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany
| | - Maria Bartosova
- Centre for Paediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany
| | - Tanja Poth
- Center for Model System and Comparative Pathology (CMCP), Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Constantin Schwab
- Institute of Pathology, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Gernot Poschet
- Centre for Organismal Studies (COS), Metabolomics Core Technology Platform, University of Heidelberg, 69120 Heidelberg, Germany
| | - Johanna Zemva
- Internal Medicine I and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Ruben Bulkescher
- Internal Medicine I and Clinical Chemistry, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Ivan Damgov
- Institute of Medical Biometry and Informatics, University of Heidelberg, 69120 Heidelberg, Germany
| | - Christian Thiel
- Centre for Paediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany
| | - Sven F Garbade
- Centre for Paediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany
| | - Kristina Klingbeil
- Centre for Paediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany
| | - Verena Peters
- Centre for Paediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany
| | - Claus Peter Schmitt
- Centre for Paediatric and Adolescent Medicine, University of Heidelberg, 69120 Heidelberg, Germany
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Matthews JJ, Turner MD, Santos L, Elliott-Sale KJ, Sale C. Carnosine increases insulin-stimulated glucose uptake and reduces methylglyoxal-modified proteins in type-2 diabetic human skeletal muscle cells. Amino Acids 2023; 55:413-420. [PMID: 36637533 PMCID: PMC10038967 DOI: 10.1007/s00726-022-03230-9] [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: 12/02/2022] [Accepted: 12/18/2022] [Indexed: 01/14/2023]
Abstract
Type-2 diabetes (T2D) is characterised by a dysregulation of metabolism, including skeletal muscle insulin resistance, mitochondrial dysfunction, and oxidative stress. Reactive species, such as methylglyoxal (MGO) and 4-hydroxynonenal (4-HNE), positively associate with T2D disease severity and can directly interfere with insulin signalling and glucose uptake in skeletal muscle by modifying cellular proteins. The multifunctional dipeptide carnosine, and its rate-limiting precursor β-alanine, have recently been shown to improve glycaemic control in humans and rodents with diabetes. However, the precise mechanisms are unclear and research in human skeletal muscle is limited. Herein, we present novel findings in primary human T2D and lean healthy control (LHC) skeletal muscle cells. Cells were differentiated to myotubes, and treated with 10 mM carnosine, 10 mM β-alanine, or control for 4-days. T2D cells had reduced ATP-linked and maximal respiration compared with LHC cells (p = 0.016 and p = 0.005). Treatment with 10 mM carnosine significantly increased insulin-stimulated glucose uptake in T2D cells (p = 0.047); with no effect in LHC cells. Insulin-stimulation increased MGO-modified proteins in T2D cells by 47%; treatment with carnosine attenuated this increase to 9.7% (p = 0.011). There was no effect treatment on cell viability or expression of other proteins. These findings suggest that the beneficial effects of carnosine on glycaemic control may be explained by its scavenging actions in human skeletal muscle.
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Affiliation(s)
- Joseph J Matthews
- Sport, Health and Performance Research Centre, Musculoskeletal Physiology Research Group, School of Science and Technology, Nottingham Trent University, Nottingham, UK
- Department of Sport and Exercise, Centre for Life and Sport Sciences (CLaSS), Birmingham City University, Birmingham, UK
| | - Mark D Turner
- Centre for Diabetes, Chronic Diseases & Ageing, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Livia Santos
- Sport, Health and Performance Research Centre, Musculoskeletal Physiology Research Group, School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Kirsty J Elliott-Sale
- Sport, Health and Performance Research Centre, Musculoskeletal Physiology Research Group, School of Science and Technology, Nottingham Trent University, Nottingham, UK
- Institute of Sport, Manchester Metropolitan University, Manchester, UK
| | - Craig Sale
- Sport, Health and Performance Research Centre, Musculoskeletal Physiology Research Group, School of Science and Technology, Nottingham Trent University, Nottingham, UK.
- Institute of Sport, Manchester Metropolitan University, Manchester, UK.
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Pulmonary inflammation, oxidative stress, and fibrosis in a mouse model of cholestasis: the potential protective properties of the dipeptide carnosine. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:1129-1142. [PMID: 36651945 DOI: 10.1007/s00210-023-02391-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 01/09/2023] [Indexed: 01/19/2023]
Abstract
Cholestasis is a clinical complication that primarily influences the liver. However, it is well known that many other organs could be affected by cholestasis. Lung tissue is a major organ influenced during cholestasis. Cholestasis-induced lung injury could induce severe complications such as respiratory distress, serious pulmonary infections, and tissue fibrosis. Unfortunately, there is no specific pharmacological intervention against this complication. Several studies revealed that oxidative stress and inflammatory response play a role in cholestasis-induced lung injury. Carnosine (CARN) is a dipeptide found at high concentrations in different tissues of humans. CARN's antioxidant and antiinflammatory properties are repeatedly mentioned in various experimental models. This study aimed to assess the role of CARN on cholestasis-induced lung injury. Rats underwent bile duct ligation (BDL) to induce cholestasis. Broncho-alveolar lavage fluid (BALF) levels of inflammatory cells, pro-inflammatory cytokines, and immunoglobulin were monitored at scheduled intervals (7, 14, and 28 days after BDL). Moreover, lung tissue histopathological alterations and biomarkers of oxidative stress were evaluated. A significant increase in BALF inflammatory cells, TNF-α, IL-1β, IL-6, and immunoglobulin-G (IgG) was detected in the BALF of BDL rats. Moreover, lung tissue histopathological changes, collagen deposition, increased TGF-β, and elevated levels of oxidative stress biomarkers were evident in cholestatic animals. It was found that CARN (100 and 500 mg/kg, i.p.) significantly alleviated lung oxidative stress biomarkers, inflammatory response, tissue fibrosis, and histopathological alterations. These data indicate the potential protective properties of CARN in the management of cholestasis-induced pulmonary damage. The effects of CARN on inflammatory response and oxidative stress biomarkers seems to play a crucial role in its protective properties in the lung of cholestatic animals.
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Regazzoni L, Fumagalli L, Artasensi A, Gervasoni S, Gilardoni E, Mazzolari A, Aldini G, Vistoli G. Cyclo(His-Pro) Exerts Protective Carbonyl Quenching Effects through Its Open Histidine Containing Dipeptides. Nutrients 2022; 14:1775. [PMID: 35565743 PMCID: PMC9103439 DOI: 10.3390/nu14091775] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/11/2022] [Accepted: 04/19/2022] [Indexed: 12/12/2022] Open
Abstract
Cyclo(His-Pro) (CHP) is a cyclic dipeptide which is endowed with favorable pharmacokinetic properties combined with a variety of biological activities. CHP is found in a number of protein-rich foods and dietary supplements. While being stable at physiological pH, CHP can open yielding two symmetric dipeptides (His-Pro, Pro-His), the formation of which might be particularly relevant from dietary CHP due to the gastric acidic environment. The antioxidant and protective CHP properties were repeatedly reported although the non-enzymatic mechanisms were scantly investigated. The CHP detoxifying activity towards α,β unsaturated carbonyls was never investigated in detail, although its open dipeptides might be effective as already observed for histidine containing dipeptides. Hence, this study investigated the scavenging properties of TRH, CHP and its open derivatives towards 4-hydroxy-2-nonenal. The obtained results revealed that Pro-His possesses a marked activity and is more reactive than l-carnosine. As investigated by DFT calculations, the enhanced reactivity can be ascribed to the greater electrophilicity of the involved iminium intermediate. These findings emphasize that the primary amine (as seen in l-carnosine) can be replaced by secondary amines with beneficial effects on the quenching mechanisms. Serum stability of the tested peptides was also evaluated, showing that Pro-His is characterized by a greater stability than l-carnosine. Docking simulations suggested that its hydrolysis can be catalyzed by serum carnosinase. Altogether, the reported results evidence that the antioxidant CHP properties can be also due to the detoxifying activity of its open dipeptides, which might be thus responsible for the beneficial effects induced by CHP containing food.
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Affiliation(s)
- Luca Regazzoni
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, I-20133 Milano, Italy; (L.R.); (L.F.); (A.A.); (S.G.); (E.G.); (A.M.); (G.A.)
| | - Laura Fumagalli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, I-20133 Milano, Italy; (L.R.); (L.F.); (A.A.); (S.G.); (E.G.); (A.M.); (G.A.)
| | - Angelica Artasensi
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, I-20133 Milano, Italy; (L.R.); (L.F.); (A.A.); (S.G.); (E.G.); (A.M.); (G.A.)
| | - Silvia Gervasoni
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, I-20133 Milano, Italy; (L.R.); (L.F.); (A.A.); (S.G.); (E.G.); (A.M.); (G.A.)
- Department of Physics, Università di Cagliari, Citt. Universitaria, I-09042 Monserrato, Italy
| | - Ettore Gilardoni
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, I-20133 Milano, Italy; (L.R.); (L.F.); (A.A.); (S.G.); (E.G.); (A.M.); (G.A.)
| | - Angelica Mazzolari
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, I-20133 Milano, Italy; (L.R.); (L.F.); (A.A.); (S.G.); (E.G.); (A.M.); (G.A.)
| | - Giancarlo Aldini
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, I-20133 Milano, Italy; (L.R.); (L.F.); (A.A.); (S.G.); (E.G.); (A.M.); (G.A.)
| | - Giulio Vistoli
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Milano, I-20133 Milano, Italy; (L.R.); (L.F.); (A.A.); (S.G.); (E.G.); (A.M.); (G.A.)
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Jiang M, Yakupu A, Guan H, Dong J, Liu Y, Song F, Tang J, Tian M, Niu Y, Lu S. Pyridoxamine ameliorates methylglyoxal-induced macrophage dysfunction to facilitate tissue repair in diabetic wounds. Int Wound J 2022; 19:52-63. [PMID: 33792156 PMCID: PMC8684884 DOI: 10.1111/iwj.13597] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/16/2021] [Accepted: 03/23/2021] [Indexed: 01/13/2023] Open
Abstract
Methylglyoxal (MGO) is a highly reactive dicarbonyl compound formed during hyperglycaemia. MGO combines with proteins to form advanced glycation end products (AGEs), leading to cellular dysfunction and organ damage. In type 2 diabetes mellitus (T2DM), the higher the plasma MGO concentration, the higher the lower extremity amputation rate. Here, we aimed to identify the mechanisms of MGO-induced dysfunction. We observed that the accumulation of MGO-derived AGEs in human diabetic wounds increased, whereas the expression of glyoxalase 1 (GLO1), a key metabolic enzyme of MGO, decreased. We show for the first time that topical application of pyridoxamine (PM), a natural vitamin B6 analogue, reduced the accumulation of MGO-derived AGEs in the wound tissue of type-2 diabetic mice, promoted the influx of macrophages in the early stage of tissue repair, improved the dysfunctional inflammatory response, and accelerated wound healing. In vitro, MGO damaged the phagocytic functions of M1-like macrophages induced by lipopolysaccharide (LPS), but not those of M0-like macrophages induced by PMA or of M2-like macrophages induced by interleukins 4 (IL-4) and 13 (IL-13); the impaired phagocytosis of M1-like macrophages was rescued by PM administration. These findings suggest that the increase in MGO metabolism in vivo might contribute to macrophage dysfunction, thereby affecting wound healing. Our results indicate that PM may be a novel therapeutic approach for treating diabetic wounds. MGO forms protein adducts that cause macrophage dysfunction. These adducts cause cell and organ dysfunction that is common in diabetes. Pyridoxamine scavenges MGO to ameliorate this dysfunction, promoting wound healing. Pyridoxamine could be used therapeutically to treat non-healing diabetic wounds.
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Affiliation(s)
- Minfei Jiang
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Aobuliaximu Yakupu
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Haonan Guan
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Jiaoyun Dong
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Yingkai Liu
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Fei Song
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Jiajun Tang
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Ming Tian
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Yiwen Niu
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Shuliang Lu
- Department of BurnRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
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Spaas J, Franssen WMA, Keytsman C, Blancquaert L, Vanmierlo T, Bogie J, Broux B, Hellings N, van Horssen J, Posa DK, Hoetker D, Baba SP, Derave W, Eijnde BO. Carnosine quenches the reactive carbonyl acrolein in the central nervous system and attenuates autoimmune neuroinflammation. J Neuroinflammation 2021; 18:255. [PMID: 34740381 PMCID: PMC8571880 DOI: 10.1186/s12974-021-02306-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 10/22/2021] [Indexed: 12/28/2022] Open
Abstract
Background Multiple sclerosis (MS) is a chronic autoimmune disease driven by sustained inflammation in the central nervous system. One of the pathological hallmarks of MS is extensive free radical production. However, the subsequent generation, potential pathological role, and detoxification of different lipid peroxidation-derived reactive carbonyl species during neuroinflammation are unclear, as are the therapeutic benefits of carbonyl quenchers. Here, we investigated the reactive carbonyl acrolein and (the therapeutic effect of) acrolein quenching by carnosine during neuroinflammation. Methods The abundance and localization of acrolein was investigated in inflammatory lesions of MS patients and experimental autoimmune encephalomyelitis (EAE) mice. In addition, we analysed carnosine levels and acrolein quenching by endogenous and exogenous carnosine in EAE. Finally, the therapeutic effect of exogenous carnosine was assessed in vivo (EAE) and in vitro (primary mouse microglia, macrophages, astrocytes). Results Acrolein was substantially increased in inflammatory lesions of MS patients and EAE mice. Levels of the dipeptide carnosine (β-alanyl-l-histidine), an endogenous carbonyl quencher particularly reactive towards acrolein, and the carnosine-acrolein adduct (carnosine-propanal) were ~ twofold lower within EAE spinal cord tissue. Oral carnosine treatment augmented spinal cord carnosine levels (up to > tenfold), increased carnosine-acrolein quenching, reduced acrolein-protein adduct formation, suppressed inflammatory activity, and alleviated clinical disease severity in EAE. In vivo and in vitro studies indicate that pro-inflammatory microglia/macrophages generate acrolein, which can be efficiently quenched by increasing carnosine availability, resulting in suppressed inflammatory activity. Other properties of carnosine (antioxidant, nitric oxide scavenging) may also contribute to the therapeutic effects. Conclusions Our results identify carbonyl (particularly acrolein) quenching by carnosine as a therapeutic strategy to counter inflammation and macromolecular damage in MS. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-021-02306-9.
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Affiliation(s)
- Jan Spaas
- University MS Center (UMSC) Hasselt - Pelt, Hasselt, Belgium. .,BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium. .,Department of Movement and Sports Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
| | - Wouter M A Franssen
- BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.,REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Hasselt, Belgium
| | - Charly Keytsman
- University MS Center (UMSC) Hasselt - Pelt, Hasselt, Belgium.,BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.,REVAL Rehabilitation Research Center, Faculty of Rehabilitation Sciences, Hasselt University, Hasselt, Belgium
| | - Laura Blancquaert
- Department of Movement and Sports Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Tim Vanmierlo
- University MS Center (UMSC) Hasselt - Pelt, Hasselt, Belgium.,Neuro-Immune Connections and Repair Lab, Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium.,Division of Translational Neuroscience, Department Psychiatry and Neuropsychology, European Graduate School of Neuroscience, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Jeroen Bogie
- University MS Center (UMSC) Hasselt - Pelt, Hasselt, Belgium.,BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
| | - Bieke Broux
- University MS Center (UMSC) Hasselt - Pelt, Hasselt, Belgium.,Neuro-Immune Connections and Repair Lab, Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium.,Department of Internal Medicine, Cardiovascular Research Institute Maastricht, Maastricht University, Maastricht, The Netherlands
| | - Niels Hellings
- University MS Center (UMSC) Hasselt - Pelt, Hasselt, Belgium.,Neuro-Immune Connections and Repair Lab, Department of Immunology and Infection, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Jack van Horssen
- University MS Center (UMSC) Hasselt - Pelt, Hasselt, Belgium.,BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium.,Department of Molecular Cell Biology and Immunology, Amsterdam Neuroscience, MS Center Amsterdam, Amsterdam University Medical Center, Location VUmc, Amsterdam, The Netherlands
| | - Dheeraj Kumar Posa
- Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA
| | - David Hoetker
- Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA
| | - Shahid P Baba
- Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA
| | - Wim Derave
- Department of Movement and Sports Sciences, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Bert O Eijnde
- University MS Center (UMSC) Hasselt - Pelt, Hasselt, Belgium.,BIOMED Biomedical Research Institute, Faculty of Medicine and Life Sciences, Hasselt University, Hasselt, Belgium
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Nomi Y, Yamazaki K, Mori Y, Matsumoto H, Sato S. Identification of dipyrrolone pigments and their precursors formed in the Maillard reaction of carnosine and pentose under weakly acidic conditions. Biosci Biotechnol Biochem 2021; 85:2042-2053. [PMID: 34191004 DOI: 10.1093/bbb/zbab119] [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: 05/21/2021] [Accepted: 06/22/2021] [Indexed: 11/14/2022]
Abstract
Colored compounds formed by the Maillard reaction of carnosine with xylose or glucose were investigated in this study. Yellow pigments showing an absorption maximum at 450 nm were found in a heated solution of carnosine with xylose at pH 5.0. These pigments were then isolated and identified as dicarnosyl-dipyrrolones A and B. The generation of dipyrrolones in the absence of lysine suggests that dipyrrolone pigments can be formed by pentose as well as every amino compound such as amino acids, peptides and proteins possessing a free amino group. Analysis of α-dicarbonyls using LC-MS/MS showed that pentosone, 1-deoxypentosone, 3-deoxypentosone (3-DP), and methylglyoxal were predominantly generated via degradation of Amadori compounds. Also, a potential formation pathway of dypyrrolones was established, indicating that an Amadori compound that could form 3-DP is likely to play a role as a main precursor for dipyrrolones.
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Affiliation(s)
- Yuri Nomi
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Kento Yamazaki
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Yuki Mori
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Hitoshi Matsumoto
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Shinji Sato
- Faculty of Applied Life Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
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Urinary Carnosinase-1 Excretion is Associated with Urinary Carnosine Depletion and Risk of Graft Failure in Kidney Transplant Recipients: Results of the TransplantLines Cohort Study. Antioxidants (Basel) 2021; 10:antiox10071102. [PMID: 34356335 PMCID: PMC8301129 DOI: 10.3390/antiox10071102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/26/2021] [Accepted: 07/06/2021] [Indexed: 11/16/2022] Open
Abstract
Carnosine affords protection against oxidative and carbonyl stress, yet high concentrations of the carnosinase-1 enzyme may limit this. We recently reported that high urinary carnosinase-1 is associated with kidney function decline and albuminuria in patients with chronic kidney disease. We prospectively investigated whether urinary carnosinase-1 is associated with a high risk for development of late graft failure in kidney transplant recipients (KTRs). Carnosine and carnosinase-1 were measured in 24 h urine in a longitudinal cohort of 703 stable KTRs and 257 healthy controls. Cox regression was used to analyze the prospective data. Urinary carnosine excretions were significantly decreased in KTRs (26.5 [IQR 21.4–33.3] µmol/24 h versus 34.8 [IQR 25.6–46.8] µmol/24 h; p < 0.001). In KTRs, high urinary carnosinase-1 concentrations were associated with increased risk of undetectable urinary carnosine (OR 1.24, 95%CI [1.06–1.45]; p = 0.007). During median follow-up for 5.3 [4.5–6.0] years, 84 (12%) KTRs developed graft failure. In Cox regression analyses, high urinary carnosinase-1 excretions were associated with increased risk of graft failure (HR 1.73, 95%CI [1.44–2.08]; p < 0.001) independent of potential confounders. Since urinary carnosine is depleted and urinary carnosinase-1 imparts a higher risk for graft failure in KTRs, future studies determining the potential of carnosine supplementation in these patients are warranted.
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Bora S, Shankarrao Adole P. Carbonyl stress in diabetics with acute coronary syndrome. Clin Chim Acta 2021; 520:78-86. [PMID: 34090879 DOI: 10.1016/j.cca.2021.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 05/30/2021] [Accepted: 06/01/2021] [Indexed: 01/17/2023]
Abstract
The prevalence and incidence of diabetes mellitus (DM) are increasing worldwide bringing with it a significantly higher rate of complications. Various mechanisms such as carbonyl stress, polyol pathway, oxidative stress, hexosamine pathways, diacylglycerol/protein kinase-C activation, etc., are responsible for the pathogenesis of DM and its complications. Persistent hyperglycaemia and inhibition of metabolising and detoxifying enzymes lead to the excessive synthesis of carbonyl compounds such as methylglyoxal, glyoxal, and 3-deoxyglucosone, resulting in carbonyl stress. The substrates, metabolizing and detoxifying enzymes of carbonyl compounds are discussed. The mechanistic roles of carbonyl compounds and advanced glycation end products (AGEs) in atherosclerosis, insulin resistance, thrombogenicity, and endothelial dysfunction in animal and cell culture model of DM and patients with DM are summarised. Because of the essential role of carbonyl stress, therapeutics are aimed at scavenging, metabolizing, detoxifying, and inhibiting carbonyl compounds or AGEs so that their harmful effects are minimized. Clinically used drugs, plants extracts and miscellaneous chemical with antiglycation properties are used in an animal model of DM to alleviates the impact of carbonyl compounds. Extensive clinical trials with derivatisation of available antiglycation agents to increase the bioavailability and decrease side effects are warranted further.
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Affiliation(s)
- Sushmita Bora
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry 605 006, India
| | - Prashant Shankarrao Adole
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry 605 006, India.
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Interaction pattern of histidine, carnosine and histamine with methylglyoxal and other carbonyl compounds. Food Chem 2021; 358:129884. [PMID: 33933976 DOI: 10.1016/j.foodchem.2021.129884] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/18/2021] [Accepted: 03/27/2021] [Indexed: 11/21/2022]
Abstract
The ability of histidine to scavenge sugar-derived 1,2-dicarbonyl compounds was investigated using aqueous methanolic model systems containing histidine or histamine in the presence of glucose, methylglyoxal, or glyoxal. The samples were prepared either at room temperature (RT) or at 150 °C and analyzed using ESI-qTOF-MS/MS and isotope labeling technique. Replacing glucose with [U-13C6]glucose allowed the identification of glucose carbon atoms incorporated in the products. Various sugar-generated carbonyl compounds ranging in size from C1 to C6 were captured by histidine or histamine. The majority of the fragments incorporated were either C3 or C2 units originating from glyoxal (C2) or methylglyoxal (C3). The ESI-qTOF-MS/MS analysis indicated that histamine could react with either of the two carbonyl carbons of methylglyoxal utilizing the α-amino group and/or the imidazolium moiety. Furthermore, when histidine was added to 2-amino-1-methyl-6-phenylimidazo(4,5-b)pyridine (PhIP) generating model system, it completely suppressed the formation of PhIP due to scavenging of phenylacetaldehyde.
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11
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Zhang X, Rodriguez-Niño A, Pastene DO, Pallavi P, van den Born J, Bakker SJL, Krämer BK, Yard BA. Methylglyoxal induces p53 activation and inhibits mTORC1 in human umbilical vein endothelial cells. Sci Rep 2021; 11:8004. [PMID: 33850227 PMCID: PMC8044125 DOI: 10.1038/s41598-021-87561-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 03/30/2021] [Indexed: 12/26/2022] Open
Abstract
Methylglyoxal (MGO), a precursor of advanced glycation end products (AGEs), is regarded as a pivotal mediator of vascular damage in patients with diabetes. We have previously reported that MGO induces transcriptional changes compatible with p53 activation in cultured human endothelial cells. To further substantiate this finding and to explore the underlying mechanisms and possible consequences of p53 activation, we aimed (1) to provide direct evidence for p53 activation in MGO-treated human umbilical vein endothelial cells (HUVECs), (2) to assess putative mechanisms by which this occurs, (3) to analyze down-stream effects on mTOR and autophagy pathways, and (4) to assess the potential benefit of carnosine herein. Exposure of HUVECs to 800 µM of MGO for 5 h induced p53 phosphorylation. This was paralleled by an increase in TUNEL and γ-H2AX positive cells, indicative for DNA damage. Compatible with p53 activation, MGO treatment resulted in cell cycle arrest, inhibition of mTORC1 and induction of autophagy. Carnosine co-treatment did not counteract MGO-driven effects. In conclusion, our results demonstrate that MGO elicits DNA damage and p53 activation in HUVECs, resulting in modulation of downstream pathways, e.g. mTORC1.
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Affiliation(s)
- Xinmiao Zhang
- Department of Nephrology, Endocrinology and Rheumatology, Fifth Department of Medicine, University Hospital Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.
| | - Angelica Rodriguez-Niño
- Department of Nephrology, Endocrinology and Rheumatology, Fifth Department of Medicine, University Hospital Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Diego O Pastene
- Department of Nephrology, Endocrinology and Rheumatology, Fifth Department of Medicine, University Hospital Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - Prama Pallavi
- Surgical Department, University Hospital Mannheim, Heidelberg University, Mannheim, Germany
| | - Jacob van den Born
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Stephan J L Bakker
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Bernhard K Krämer
- Department of Nephrology, Endocrinology and Rheumatology, Fifth Department of Medicine, University Hospital Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Benito A Yard
- Department of Nephrology, Endocrinology and Rheumatology, Fifth Department of Medicine, University Hospital Mannheim, Heidelberg University, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
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12
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Aldini G, de Courten B, Regazzoni L, Gilardoni E, Ferrario G, Baron G, Altomare A, D’Amato A, Vistoli G, Carini M. Understanding the antioxidant and carbonyl sequestering activity of carnosine: direct and indirect mechanisms. Free Radic Res 2020; 55:321-330. [DOI: 10.1080/10715762.2020.1856830] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Giancarlo Aldini
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Barbora de Courten
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Luca Regazzoni
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Ettore Gilardoni
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Giulio Ferrario
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Giovanna Baron
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | | | - Alfonsina D’Amato
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Giulio Vistoli
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
| | - Marina Carini
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy
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13
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Modification of proteins by reactive lipid oxidation products and biochemical effects of lipoxidation. Essays Biochem 2020; 64:19-31. [PMID: 31867621 DOI: 10.1042/ebc20190058] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/22/2019] [Accepted: 11/27/2019] [Indexed: 02/06/2023]
Abstract
Lipid oxidation results in the formation of many reactive products, such as small aldehydes, substituted alkenals, and cyclopentenone prostaglandins, which are all able to form covalent adducts with nucleophilic residues of proteins. This process is called lipoxidation, and the resulting adducts are called advanced lipoxidation end products (ALEs), by analogy with the formation of advanced glycoxidation end products from oxidized sugars. Modification of proteins by reactive oxidized lipids leads to structural changes such as increased β-sheet conformation, which tends to result in amyloid-like structures and oligomerization, or unfolding and aggregation. Reaction with catalytic cysteines is often responsible for the loss of enzymatic activity in lipoxidized proteins, although inhibition may also occur through conformational changes at more distant sites affecting substrate binding or regulation. On the other hand, a few proteins are activated by lipoxidation-induced oligomerization or interactions, leading to increased downstream signalling. At the cellular level, it is clear that some proteins are much more susceptible to lipoxidation than others. ALEs affect cell metabolism, protein-protein interactions, protein turnover via the proteasome, and cell viability. Evidence is building that they play roles in both physiological and pathological situations, and inhibiting ALE formation can have beneficial effects.
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Carnosine and anserine in chicken can quench toxic acrylamide under cooking conditions: Mass spectrometric studies on adduct formation and characterization. Food Chem 2020; 333:127480. [DOI: 10.1016/j.foodchem.2020.127480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/26/2020] [Accepted: 06/30/2020] [Indexed: 11/22/2022]
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15
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Jaganjac M, Milkovic L, Gegotek A, Cindric M, Zarkovic K, Skrzydlewska E, Zarkovic N. The relevance of pathophysiological alterations in redox signaling of 4-hydroxynonenal for pharmacological therapies of major stress-associated diseases. Free Radic Biol Med 2020; 157:128-153. [PMID: 31756524 DOI: 10.1016/j.freeradbiomed.2019.11.023] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/04/2019] [Accepted: 11/17/2019] [Indexed: 02/07/2023]
Abstract
Modern analytical methods combined with the modern concepts of redox signaling revealed 4-hydroxy-2-nonenal (4-HNE) as particular growth regulating factor involved in redox signaling under physiological and pathophysiological circumstances. In this review current knowledge of the relevance of 4-HNE as "the second messenger of reactive oxygen species" (ROS) in redox signaling of representative major stress-associated diseases is briefly summarized. The findings presented allow for 4-HNE to be considered not only as second messenger of ROS, but also as one of fundamental factors of the stress- and age-associated diseases. While standard, even modern concepts of molecular medicine and respective therapies in majority of these diseases target mostly the disease-specific symptoms. 4-HNE, especially its protein adducts, might appear to be the bioactive markers that would allow better monitoring of specific pathophysiological processes reflecting their complexity. Eventually that could help development of advanced integrative medicine approach for patients and the diseases they suffer from on the personalized basis implementing biomedical remedies that would optimize beneficial effects of ROS and 4-HNE to prevent the onset and progression of the illness, perhaps even providing the real cure.
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Affiliation(s)
- Morana Jaganjac
- Qatar Analytics & BioResearch Lab, Anti Doping Lab Qatar, Sport City Street, Doha, Qatar
| | - Lidija Milkovic
- Rudjer Boskovic Institute, Laboratory for Oxidative Stress, Div. of Molecular Medicine, Bijenicka 54, Zagreb, Croatia
| | - Agnieszka Gegotek
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland
| | - Marina Cindric
- University of Zagreb, School of Medicine, Div. of Pathology, University Hospital Centre Zagreb, Kispaticeva 12, Zagreb, Croatia
| | - Kamelija Zarkovic
- University of Zagreb, School of Medicine, Div. of Pathology, University Hospital Centre Zagreb, Kispaticeva 12, Zagreb, Croatia
| | - Elzbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, Mickiewicza 2D, 15-222, Bialystok, Poland
| | - Neven Zarkovic
- Rudjer Boskovic Institute, Laboratory for Oxidative Stress, Div. of Molecular Medicine, Bijenicka 54, Zagreb, Croatia.
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A Global Cndp1-Knock-Out Selectively Increases Renal Carnosine and Anserine Concentrations in an Age- and Gender-Specific Manner in Mice. Int J Mol Sci 2020; 21:ijms21144887. [PMID: 32664451 PMCID: PMC7402351 DOI: 10.3390/ijms21144887] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 01/21/2023] Open
Abstract
Carnosinase 1 (CN1) is encoded by the Cndp1 gene and degrades carnosine and anserine, two natural histidine-containing dipeptides. In vitro and in vivo studies suggest carnosine- and anserine-mediated protection against long-term sequelae of reactive metabolites accumulating, e.g., in diabetes mellitus. We have characterized the metabolic impact of CN1 in 11- and 55-week-old Cndp1-knockout (Cndp1-KO) mice and litter-matched wildtypes (WT). In Cndp1-KO mice, renal carnosine and anserine concentrations were gender-specifically increased 2- to 9-fold, respectively in the kidney and both most abundant in the renal cortex, but remained unchanged in all other organs and in serum. Renal oxidized/reduced glutathione concentrations, renal morphology and function were unaltered. In Cndp1-KO mice at week 11, renal asparagine, serine and glutamine levels and at week 55, renal arginine concentration were reduced. Renal heat-shock-protein 70 (Hspa1a/b) mRNA declined with age in WT but not in Cndp1-KO mice, transcription factor heat-shock-factor 1 was higher in 55-week-old KO mice. Fasting blood glucose concentrations decreased with age in WT mice, but were unchanged in Cndp1-KO mice. Blood glucose response to intraperitoneal insulin was gender- but not genotype-dependent, the response to intraperitoneal glucose injection was similar in all groups. A global Cndp1-KO selectively, age- and gender-specifically, increases renal carnosine and anserine concentrations, alters renal amino acid- and HSP70 profile and modifies systemic glucose homeostasis. Increase of the natural occurring carnosine and anserine levels in the kidney by modulation of CN1 represents a promising therapeutic approach to mitigate or prevent chronic kidney diseases such as diabetic nephropathy.
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Peters V, Yard B, Schmitt CP. Carnosine and Diabetic Nephropathy. Curr Med Chem 2020; 27:1801-1812. [DOI: 10.2174/0929867326666190326111851] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 09/25/2018] [Accepted: 11/01/2018] [Indexed: 11/22/2022]
Abstract
Diabetic Nephropathy (DN) is a major complication in patients with type 1 or type 2 diabetes
and represents the leading cause of end-stage renal disease. Novel therapeutic approaches are
warranted. In view of a polymorphism in the carnosinase 1 gene CNDP1, resulting in reduced
carnosine degradation activity and a significant DN risk reduction, carnosine (β-alanyl-L-histidine)
has gained attention as a potential therapeutic target. Carnosine has anti-inflammatory, antioxidant,
anti-glycation and reactive carbonyl quenching properties. In diabetic rodents, carnosine supplementation
consistently improved renal histology and function and in most studies, also glucose metabolism.
Even though plasma half-life of carnosine in humans is short, first intervention studies in (pre-)
diabetic patients yielded promising results. The precise molecular mechanisms of carnosine mediated
protective action, however, are still incompletely understood. This review highlights the recent
knowledge on the role of the carnosine metabolism in DN.
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Affiliation(s)
- Verena Peters
- Centre for Pediatric and Adolescent Medicine, University of Heidelberg, Heidelberg, Germany
| | - Benito Yard
- Vth Department of Medicine (Nephrology/Endocrinology/Rheumatology), University Medical Center Mannheim, University of Heidelberg, Heidelberg, Germany
| | - Claus Peter Schmitt
- Centre for Pediatric and Adolescent Medicine, University of Heidelberg, Heidelberg, Germany
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Chmielewska K, Dzierzbicka K, Inkielewicz-Stępniak I, Przybyłowska M. Therapeutic Potential of Carnosine and Its Derivatives in the Treatment of Human Diseases. Chem Res Toxicol 2020; 33:1561-1578. [PMID: 32202758 DOI: 10.1021/acs.chemrestox.0c00010] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Despite significant progress in the pathogenesis, diagnosis, treatment, and prevention of cancer and neurodegenerative diseases, their occurrence and mortality are still high around the world. The resistance of cancer cells to the drugs remains a significant problem in oncology today, while in the case of neuro-degenerative diseases, therapies reversing the process are still yet to be found. Furthermore, it is important to seek new chemotherapeutics reversing side effects of currently used drugs or helping them perform their function to inhibit progression of the disease. Carnosine, a dipeptide constisting of β-alanine and l-histidine, has a variety of functions to mention: antioxidant, antiglycation, and reducing the toxicity of metal ions. It has therefore been proposed to act as a therapeutic agent for many pathological states. The aim of this paper was to find if carnosine and its derivatives can be helpful in treating various diseases. Literature search presented in this review includes review and original papers found in SciFinder, PubMed, and Google Scholar. Searches were based on substantial keywords concerning therapeutic usage of carnosine and its derivatives in several diseases including neurodegenerative disorders and cancer. In this paper, we review articles and find that carnosine and its derivatives are potential therapeutic agents in many diseases including cancer, neurodegenerative diseases, diabetes, and schizophrenia. Carnosine and its derivatives can be used in treating neurodegenerative diseases, cancer, diabetes, or schizophrenia, although their usage is limited. Therefore, there's an urge to synthesize and analyze new substances, overcoming the limitation of carnosine itself.
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Affiliation(s)
- Klaudia Chmielewska
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk 80-233, Poland
| | - Krystyna Dzierzbicka
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk 80-233, Poland
| | - Iwona Inkielewicz-Stępniak
- Department of Medical Chemistry, Faculty of Medicine, Medical University of Gdansk, Gdansk 80-211, Poland
| | - Maja Przybyłowska
- Department of Organic Chemistry, Faculty of Chemistry, Gdansk University of Technology, Gdansk 80-233, Poland
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Oppermann H, Birkemeyer C, Meixensberger J, Gaunitz F. Non-enzymatic reaction of carnosine and glyceraldehyde-3-phosphate accompanies metabolic changes of the pentose phosphate pathway. Cell Prolif 2020; 53:e12702. [PMID: 31628715 PMCID: PMC7046307 DOI: 10.1111/cpr.12702] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/14/2019] [Accepted: 09/09/2019] [Indexed: 02/01/2023] Open
Abstract
OBJECTIVES Carnosine (β-alanyl-l-histidine) is a naturally occurring dipeptide that selectively inhibits cancer cell growth, possibly by influencing glucose metabolism. As its precise mode of action and its primary targets are unknown, we analysed carnosine's effect on metabolites and pathways in glioblastoma cells. MATERIALS AND METHODS Glioblastoma cells, U87, T98G and LN229, were treated with carnosine, and metabolites were analysed by gas chromatography coupled with mass spectrometry. Furthermore, mitochondrial ATP production was determined by extracellular flux analysis and reaction products of carnosine were investigated using mass spectrometry. RESULTS Carnosine decreased the intracellular abundance of several metabolites indicating a reduced activity of the pentose phosphate pathway, the malate-aspartate shuttle and the glycerol phosphate shuttle. Mitochondrial respiration was reduced in U87 and T98G but not in LN229 cells, independent of whether glucose or pyruvate was used as substrate. Finally, we demonstrate non-enzymatic reaction of carnosine with dihydroxyacetone phosphate and glyceraldehyde-3-phosphate. However, glycolytic flux from glucose to l-lactate appeared not to be affected by the reaction of carnosine with the metabolites. CONCLUSIONS Carnosine reacts non-enzymatically with glycolytic intermediates reducing the activity of the pentose phosphate pathway which is required for cell proliferation. Although the activity of the malate-aspartate and the glycerol phosphate shuttle appear to be affected, reduced mitochondrial ATP production under the influence of the dipeptide is cell-specific and appears to be independent of the effect on the shuttles.
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Affiliation(s)
- Henry Oppermann
- Klinik und Poliklinik für NeurochirurgieUniversitätsklinikum Leipzig AöRLeipzigGermany
| | | | - Jürgen Meixensberger
- Klinik und Poliklinik für NeurochirurgieUniversitätsklinikum Leipzig AöRLeipzigGermany
| | - Frank Gaunitz
- Klinik und Poliklinik für NeurochirurgieUniversitätsklinikum Leipzig AöRLeipzigGermany
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Schalkwijk CG, Stehouwer CDA. Methylglyoxal, a Highly Reactive Dicarbonyl Compound, in Diabetes, Its Vascular Complications, and Other Age-Related Diseases. Physiol Rev 2020; 100:407-461. [DOI: 10.1152/physrev.00001.2019] [Citation(s) in RCA: 176] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The formation and accumulation of methylglyoxal (MGO), a highly reactive dicarbonyl compound, has been implicated in the pathogenesis of type 2 diabetes, vascular complications of diabetes, and several other age-related chronic inflammatory diseases such as cardiovascular disease, cancer, and disorders of the central nervous system. MGO is mainly formed as a byproduct of glycolysis and, under physiological circumstances, detoxified by the glyoxalase system. MGO is the major precursor of nonenzymatic glycation of proteins and DNA, subsequently leading to the formation of advanced glycation end products (AGEs). MGO and MGO-derived AGEs can impact on organs and tissues affecting their functions and structure. In this review we summarize the formation of MGO, the detoxification of MGO by the glyoxalase system, and the biochemical pathways through which MGO is linked to the development of diabetes, vascular complications of diabetes, and other age-related diseases. Although interventions to treat MGO-associated complications are not yet available in the clinical setting, several strategies to lower MGO have been developed over the years. We will summarize several new directions to target MGO stress including glyoxalase inducers and MGO scavengers. Targeting MGO burden may provide new therapeutic applications to mitigate diseases in which MGO plays a crucial role.
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Affiliation(s)
- C. G. Schalkwijk
- CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre, Maastricht, The Netherlands; and Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - C. D. A. Stehouwer
- CARIM School for Cardiovascular Diseases, Maastricht University Medical Centre, Maastricht, The Netherlands; and Department of Internal Medicine, Maastricht University Medical Centre, Maastricht, The Netherlands
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Methylglyoxal – An emerging biomarker for diabetes mellitus diagnosis and its detection methods. Biosens Bioelectron 2019; 133:107-124. [DOI: 10.1016/j.bios.2019.03.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 03/07/2019] [Accepted: 03/07/2019] [Indexed: 02/07/2023]
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22
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Lipoxidation in cardiovascular diseases. Redox Biol 2019; 23:101119. [PMID: 30833142 PMCID: PMC6859589 DOI: 10.1016/j.redox.2019.101119] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 01/09/2019] [Accepted: 01/21/2019] [Indexed: 12/18/2022] Open
Abstract
Lipids can go through lipid peroxidation, an endogenous chain reaction that consists in the oxidative degradation of lipids leading to the generation of a wide variety of highly reactive carbonyl species (RCS), such as short-chain carbonyl derivatives and oxidized truncated phospholipids. RCS exert a wide range of biological effects due to their ability to interact and covalently bind to nucleophilic groups on other macromolecules, such as nucleic acids, phospholipids, and proteins, forming reversible and/or irreversible modifications and generating the so-called advanced lipoxidation end-products (ALEs). Lipoxidation plays a relevant role in the onset of cardiovascular diseases (CVD), mainly in the atherosclerosis-based diseases in which oxidized lipids and their adducts have been extensively characterized and associated with several processes responsible for the onset and development of atherosclerosis, such as endothelial dysfunction and inflammation. Herein we will review the current knowledge on the sources of lipids that undergo oxidation in the context of cardiovascular diseases, both from the bloodstream and tissues, and the methods for detection, characterization, and quantitation of their oxidative products and protein adducts. Moreover, lipoxidation and ALEs have been associated with many oxidative-based diseases, including CVD, not only as potential biomarkers but also as therapeutic targets. Indeed, several therapeutic strategies, acting at different levels of the ALEs cascade, have been proposed, essentially blocking ALEs formation, but also their catabolism or the resulting biological responses they induce. However, a deeper understanding of the mechanisms of formation and targets of ALEs could expand the available therapeutic strategies.
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Protective Actions of Anserine Under Diabetic Conditions. Int J Mol Sci 2018; 19:ijms19092751. [PMID: 30217069 PMCID: PMC6164239 DOI: 10.3390/ijms19092751] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/03/2018] [Accepted: 09/06/2018] [Indexed: 01/20/2023] Open
Abstract
Background/Aims: In rodents, carnosine treatment improves diabetic nephropathy, whereas little is known about the role and function of anserine, the methylated form of carnosine. Methods: Antioxidant activity was measured by oxygen radical absorbance capacity and oxygen stress response in human renal tubular cells (HK-2) by RT-PCR and Western-Immunoblotting. In wildtype (WT) and diabetic mice (db/db), the effect of short-term anserine treatment on blood glucose, proteinuria and vascular permeability was measured. Results: Anserine has a higher antioxidant capacity compared to carnosine (p < 0.001). In tubular cells (HK-2) stressed with 25 mM glucose or 20–100 µM hydrogen peroxide, anserine but not carnosine, increased intracellular heat shock protein (Hsp70) mRNA and protein levels. In HK-2 cells stressed with glucose, co-incubation with anserine also increased hemeoxygenase (HO-1) protein and reduced total protein carbonylation, but had no effect on cellular sirtuin-1 and thioredoxin protein concentrations. Three intravenous anserine injections every 48 h in 12-week-old db/db mice, improved blood glucose by one fifth, vascular permeability by one third, and halved proteinuria (all p < 0.05). Conclusion: Anserine is a potent antioxidant and activates the intracellular Hsp70/HO-1 defense system under oxidative and glycative stress. Short-term anserine treatment in diabetic mice improves glucose homeostasis and nephropathy.
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Tatsuno F, Lee SH, Oe T. Imidazole dipeptides can quench toxic 4-oxo-2(E
)-nonenal: Molecular mechanism and mass spectrometric characterization of the reaction products. J Pept Sci 2018; 24:e3097. [DOI: 10.1002/psc.3097] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/21/2018] [Accepted: 06/03/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Fumiya Tatsuno
- Department of Bio-analytical Chemistry, Graduate School of Pharmaceutical Sciences; Tohoku University; 6-3 Aramaki-aoba, Aoba-ku Sendai 980-8578 Japan
| | - Seon Hwa Lee
- Department of Bio-analytical Chemistry, Graduate School of Pharmaceutical Sciences; Tohoku University; 6-3 Aramaki-aoba, Aoba-ku Sendai 980-8578 Japan
| | - Tomoyuki Oe
- Department of Bio-analytical Chemistry, Graduate School of Pharmaceutical Sciences; Tohoku University; 6-3 Aramaki-aoba, Aoba-ku Sendai 980-8578 Japan
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25
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Carnosine and advanced glycation end products: a systematic review. Amino Acids 2018; 50:1177-1186. [DOI: 10.1007/s00726-018-2592-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 05/21/2018] [Indexed: 02/07/2023]
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