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Bernardoni BL, D'Agostino I, Scianò F, La Motta C. The challenging inhibition of Aldose Reductase for the treatment of diabetic complications: a 2019-2023 update of the patent literature. Expert Opin Ther Pat 2024:1-19. [PMID: 39365044 DOI: 10.1080/13543776.2024.2412573] [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: 04/10/2024] [Revised: 07/12/2024] [Accepted: 09/11/2024] [Indexed: 10/05/2024]
Abstract
INTRODUCTION Aldose reductase (AKR1B1, EC: 1.1.1.21) is a recognized target for the treatment of long-term diabetic complications since its activation in hyperglycemia and role in the polyol pathway. In particular, the tissue-specificity of AKR1B1 expression makes the design of the traditional Aldose Reductase Inhibitors (ARIs) and the more recent Aldose Reductase Differential Inhibitors (ARDIs) exploitable strategies to treat pathologies resulting from diabetic conditions. AREAS COVERED A brief overview of the roles and functions of AKR1B1 along with known ARIs and ARDIs was provided. Then, the design of the latest inhibitors in the scientific scenario was discussed, aiming at introducing the research achievement in the field of intellectual properties. Patents dealing with AKR1B1 and diabetes filed in the 2019-2023 period were collected and analyzed. Reaxys, Espacenet, SciFindern, and Google Patents were surveyed, using 'aldose reductase' and 'inhibitor' as the reference keywords. The search results were then filtered by PRISMA protocol, thus obtaining 16 records to review. EXPERT OPINION Although fewer in number than in the early 2000s, patent applications are still being filed in the field of ARIs, with a large number of Chinese inventors reporting new synthetic ARIs in favor of the repositioning approach.
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Affiliation(s)
| | | | - Fabio Scianò
- Department of Pharmacy, University of Pisa, Pisa, Italy
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2
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Gupta JK. The Role of Aldose Reductase in Polyol Pathway: An Emerging Pharmacological Target in Diabetic Complications and Associated Morbidities. Curr Pharm Biotechnol 2024; 25:1073-1081. [PMID: 37649296 DOI: 10.2174/1389201025666230830125147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 07/09/2023] [Accepted: 08/07/2023] [Indexed: 09/01/2023]
Abstract
The expression of aldose reductase leads to a variety of biological and pathological effects. It is a multifunctional enzyme which has a tendency to reduce aldehydes to the corresponding sugar.alcohol. In diabetic conditions, the aldose reductase enzyme converts glucose into sorbitol using nicotinamide adenine dinucleotide phosphate as a cofactor. It is a key enzyme in polyol pathway which is a surrogate course of glucose metabolism. The polyol pathway has a significant impact on the aetiology of complications in individuals with end-stage diabetes. The exorbitant level of sorbitol leads to the accumulation of intracellular reactive oxygen species in diabetic heart, neurons, kidneys, eyes and other vasculatures, leading to many complications and pathogenesis. Recently, the pathophysiological role of aldose reductase has been explored with multifarious perspectives. Research on aldose reductase suggest that besides implying in diabetic complications, the enzyme also turns down the lipid-derived aldehydes as well as their glutathione conjugates. Although aldose reductase has certain lucrative role in detoxification of toxic lipid aldehydes, its overexpression leads to intracellular accumulation of sorbitol which is involved in secondary diabetic complications, such as neuropathy, cataractogenesis, nephropathy, retinopathy and cardiovascular pathogenesis. Osmotic upset and oxidative stress are produced by aldose reductase via the polyol pathway. The inhibition of aldose reductase alters the activation of transcription factors like NF-ƙB. Moreover, in many preclinical studies, aldose reductase inhibitors have been observed to reduce inflammation-related impediments, such as asthma, sepsis and colon cancer, in diabetic subjects. Targeting aldose reductase can bestow a novel cognizance for this primordial enzyme as an ingenious strategy to prevent diabetic complications and associated morbidities. In this review article, the significance of aldose reductase is briefly discussed along with their prospective applications in other afflictions.
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Affiliation(s)
- Jeetendra Kumar Gupta
- Department of Pharmacology, Institute of Pharmaceutical Research, GLA University Mathura, Uttar Pradesh, India
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3
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Sardelli G, Scali V, Signore G, Balestri F, Cappiello M, Mura U, Del Corso A, Moschini R. Response of a Human Lens Epithelial Cell Line to Hyperglycemic and Oxidative Stress: The Role of Aldose Reductase. Antioxidants (Basel) 2023; 12:antiox12040829. [PMID: 37107204 PMCID: PMC10135174 DOI: 10.3390/antiox12040829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 03/31/2023] Open
Abstract
A common feature of different types of diabetes is the high blood glucose levels, which are known to induce a series of metabolic alterations, leading to damaging events in different tissues. Among these alterations, both increased polyol pathway flux and oxidative stress are considered to play relevant roles in the response of different cells. In this work, the effect on a human lens epithelial cell line of stress conditions, consisting of exposure to either high glucose levels or to the lipid peroxidation product 4-hydroxy-2-nonenal, is reported. The occurrence of osmotic imbalance, alterations of glutathione levels, and expression of inflammatory markers was monitored. A common feature of the two stress conditions was the expression of COX-2, which, only in the case of hyperglycemic stress, occurred through NF-κB activation. In our cell model, aldose reductase activity, which is confirmed as the only activity responsible for the osmotic imbalance occurring in hyperglycemic conditions, seemed to have no role in controlling the onset of the inflammatory phenomena. However, it played a relevant role in cellular detoxification against lipid peroxidation products. These results, in confirming the multifactorial nature of the inflammatory phenomena, highlight the dual role of aldose reductase as having both damaging but also protecting activity, depending on stress conditions.
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Affiliation(s)
- Gemma Sardelli
- Biochemistry Unit, Department of Biology, University of Pisa, 56123 Pisa, Italy
| | - Viola Scali
- Biochemistry Unit, Department of Biology, University of Pisa, 56123 Pisa, Italy
| | - Giovanni Signore
- Biochemistry Unit, Department of Biology, University of Pisa, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
| | - Francesco Balestri
- Biochemistry Unit, Department of Biology, University of Pisa, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
| | - Mario Cappiello
- Biochemistry Unit, Department of Biology, University of Pisa, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
| | - Umberto Mura
- Biochemistry Unit, Department of Biology, University of Pisa, 56123 Pisa, Italy
| | - Antonella Del Corso
- Biochemistry Unit, Department of Biology, University of Pisa, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
- Correspondence: ; Tel.: +39-050-2211450
| | - Roberta Moschini
- Biochemistry Unit, Department of Biology, University of Pisa, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
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Pineda A, Arenas A, Balmaceda J, Zúñiga GE. Extracts of Fruits and Plants Cultivated In Vitro of Aristotelia chilensis (Mol.) Stuntz Show Inhibitory Activity of Aldose Reductase and Pancreatic Alpha-Amylase Enzymes. PLANTS (BASEL, SWITZERLAND) 2022; 11:2772. [PMID: 36297800 PMCID: PMC9610771 DOI: 10.3390/plants11202772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/05/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
Aristotelia chilensis is a plant whose fruit is considered a powerful natural antioxidant. During the last years, some investigations of the fruit have been carried out, finding antioxidant properties in the juice or the phenolic fraction. The antioxidant properties of the plant are useful in the inhibition of enzymes related to diabetes such as pancreatic aldose reductase and alpha-amylase. Because many synthetic drugs used today have limitations and potentially harmful side effects, the use of naturally occurring compounds, such as flavonoids, is clinically attractive. In this study, the characterization of aqueous extracts of fruits and in vitro plants of A. chilensis was carried out based on their content of anthocyanins and total phenols, the antioxidant capacity by the antiradical activity 2,2-diphenyl-1-picrilhydrazil (DPPH), and the profile of anthocyanins and other phenolic compounds by liquid chromatography coupled to mass spectrometry (LC-MS/MS). Subsequently, the effect of these extracts on the inhibition of bovine aldose reductase and pancreatic alpha-amylase enzymes was determined. According to our results, extracts of fruits and in vitro plants of A. chilensis achieved inhibition of the bovine aldose reductase enzyme of 85.54 ± 1.86% and 75.67 ± 1.21%, respectively. Likewise, the percentage of inhibition of the pancreatic alpha-amylase enzyme for fruit extracts was 29.64 ± 0.63%, while for in vitro plant extracts it was 47.66 ± 0.66%. The antioxidant and enzymatic inhibition activity of the extracts were related to the content of anthocyanins, such as delphinidin and cyanidin glycosides as well as the phenols derived from quercetin, myricetin, and kaempferol. The results obtained allow us to suggest that the in vitro culture of plants of A. chilensis represents a viable biotechnological alternative to obtain phenolic compounds for the inhibition of aldose reductase and pancreatic alpha-amylase enzymes.
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Affiliation(s)
- Adriana Pineda
- Laboratorio de Fisiología y Biotecnología Vegetal, Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 917021, Chile
| | - Andrea Arenas
- Laboratorio de Fisiología y Biotecnología Vegetal, Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 917021, Chile
| | - Juan Balmaceda
- Laboratorio de Fisiología y Biotecnología Vegetal, Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 917021, Chile
| | - Gustavo E. Zúñiga
- Laboratorio de Fisiología y Biotecnología Vegetal, Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 917021, Chile
- Centro para el Desarrollo de la Nanociencia y la Nanotecnología (CEDENNA), Santiago 917021, Chile
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Balestri F, Poli G, Piazza L, Cappiello M, Moschini R, Signore G, Tuccinardi T, Mura U, Del Corso A. Dissecting the Activity of Catechins as Incomplete Aldose Reductase Differential Inhibitors through Kinetic and Computational Approaches. BIOLOGY 2022; 11:biology11091324. [PMID: 36138801 PMCID: PMC9495972 DOI: 10.3390/biology11091324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/29/2022] [Accepted: 09/05/2022] [Indexed: 12/03/2022]
Abstract
Simple Summary The increased glucose levels occurring in diabetes lead to several metabolic alterations responsible for the onset of the so-called diabetic complications, which include nephropathies, neuropathies, retinopathies, and cataract. An increased flux of glucose through the polyol pathway is considered the most relevant among these alterations. For this reason, the block of the polyol pathway, through the inhibition of the enzyme aldose reductase, is considered a valuable strategy to impair the onset of diabetic complications. However, aldose reductase also exerts a beneficial effect inside cells, since it can remove toxic aldehydes. Thus, to ameliorate the outcome of the use of aldose reductase inhibitors, the use of “differential inhibitors” has been proposed. These inhibitors should block the catalytic activity depending on the substrate the enzyme is working on, thus preserving the detoxifying action of the enzyme. In this work, derivatives of catechins are analyzed to evaluate their inhibitory action on aldose reductase. The study was conducted both in vitro on the isolated enzyme and in silico through a computational approach. Results demonstrated that gallocatechin gallate and catechin gallate act as differential inhibitors and that this action may be linked to an incomplete inhibitory effect. Abstract The inhibition of aldose reductase is considered as a strategy to counteract the onset of both diabetic complications, upon the block of glucose conversion in the polyol pathway, and inflammation, upon the block of 3-glutathionyl-4-hydroxynonenal reduction. To ameliorate the outcome of aldose reductase inhibition, minimizing the interference with the detoxifying role of the enzyme when acting on toxic aldehydes, “differential inhibitors”, i.e., molecules able to inhibit the enzyme depending on the substrate the enzyme is working on, has been proposed. Here we report the characterization of different catechin derivatives as aldose reductase differential inhibitors. The study, conducted through both a kinetic and a computational approach, highlights structural constraints of catechin derivatives relevant in order to affect aldose reductase activity. Gallocatechin gallate and catechin gallate emerged as differential inhibitors of aldose reductase able to preferentially affect aldoses and 3-glutathionyl-4-hydroxynonenal reduction with respect to 4-hydroxynonenal reduction. Moreover, the results highlight how, in the case of aldose reductase, a substrate may affect not only the model of action of an inhibitor, but also the degree of incompleteness of the inhibitory action, thus contributing to differential inhibitory phenomena.
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Affiliation(s)
- Francesco Balestri
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
| | - Giulio Poli
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 12, 56126 Pisa, Italy
| | - Lucia Piazza
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy
| | - Mario Cappiello
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
| | - Roberta Moschini
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
| | - Giovanni Signore
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
| | - Tiziano Tuccinardi
- Department of Pharmacy, University of Pisa, Via Bonanno Pisano 12, 56126 Pisa, Italy
| | - Umberto Mura
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy
| | - Antonella Del Corso
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56124 Pisa, Italy
- Correspondence: ; Tel.: +39-050-2211450
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Balestri F, Cappiello M, Moschini R, Mura U, Del-Corso A. Models of enzyme inhibition and apparent dissociation constants from kinetic analysis to study the differential inhibition of aldose reductase. J Enzyme Inhib Med Chem 2022; 37:1426-1436. [PMID: 35607924 PMCID: PMC9135441 DOI: 10.1080/14756366.2022.2076089] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
In order to explain the negative slope of KappM/kappcat versus inhibitor concentration observed in the study of epigallocatechin gallate acting as an inhibitor of aldose reductase, a kinetic analysis was performed to rationalise the phenomenon. Classical and non-classical models of complete and incomplete enzyme inhibition were devised and analysed to obtain rate equations suitable for the interpretation of experimental data. The results obtained from the different approaches were discussed in terms of the meaning of the emerging kinetic constants. A decrease of KappM/kappcat versus the inhibitor concentration was revealed to be a valuable indication of the occurrence of an incomplete inhibition. This indication, which is univocal in the case of an uncompetitive inhibition, may be especially useful when the residual activity resulting from inhibition is rather low.
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Affiliation(s)
- Francesco Balestri
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
| | - Mario Cappiello
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
| | - Roberta Moschini
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
| | - Umberto Mura
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
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Balestri F, Moschini R, Mura U, Cappiello M, Del Corso A. In Search of Differential Inhibitors of Aldose Reductase. Biomolecules 2022; 12:biom12040485. [PMID: 35454074 PMCID: PMC9024650 DOI: 10.3390/biom12040485] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/14/2022] [Accepted: 03/21/2022] [Indexed: 11/22/2022] Open
Abstract
Aldose reductase, classified within the aldo-keto reductase family as AKR1B1, is an NADPH dependent enzyme that catalyzes the reduction of hydrophilic as well as hydrophobic aldehydes. AKR1B1 is the first enzyme of the so-called polyol pathway that allows the conversion of glucose into sorbitol, which in turn is oxidized to fructose by sorbitol dehydrogenase. The activation of the polyol pathway in hyperglycemic conditions is generally accepted as the event that is responsible for a series of long-term complications of diabetes such as retinopathy, cataract, nephropathy and neuropathy. The role of AKR1B1 in the onset of diabetic complications has made this enzyme the target for the development of molecules capable of inhibiting its activity. Virtually all synthesized compounds have so far failed as drugs for the treatment of diabetic complications. This failure may be partly due to the ability of AKR1B1 to reduce alkenals and alkanals, produced in oxidative stress conditions, thus acting as a detoxifying agent. In recent years we have proposed an alternative approach to the inhibition of AKR1B1, suggesting the possibility of a differential inhibition of the enzyme through molecules able to preferentially inhibit the reduction of either hydrophilic or hydrophobic substrates. The rationale and examples of this new generation of aldose reductase differential inhibitors (ARDIs) are presented.
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Affiliation(s)
- Francesco Balestri
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno 51, 56127 Pisa, Italy; (F.B.); (R.M.); (U.M.); (A.D.C.)
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56127 Pisa, Italy
| | - Roberta Moschini
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno 51, 56127 Pisa, Italy; (F.B.); (R.M.); (U.M.); (A.D.C.)
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56127 Pisa, Italy
| | - Umberto Mura
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno 51, 56127 Pisa, Italy; (F.B.); (R.M.); (U.M.); (A.D.C.)
| | - Mario Cappiello
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno 51, 56127 Pisa, Italy; (F.B.); (R.M.); (U.M.); (A.D.C.)
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56127 Pisa, Italy
- Correspondence:
| | - Antonella Del Corso
- Biochemistry Unit, Department of Biology, University of Pisa, Via S. Zeno 51, 56127 Pisa, Italy; (F.B.); (R.M.); (U.M.); (A.D.C.)
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, 56127 Pisa, Italy
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Ciccone L, Petrarolo G, Barsuglia F, Fruchart-Gaillard C, Cassar Lajeunesse E, Adewumi AT, Soliman MES, La Motta C, Orlandini E, Nencetti S. Nature-Inspired O-Benzyl Oxime-Based Derivatives as New Dual-Acting Agents Targeting Aldose Reductase and Oxidative Stress. Biomolecules 2022; 12:448. [PMID: 35327641 PMCID: PMC8946157 DOI: 10.3390/biom12030448] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 03/02/2022] [Accepted: 03/05/2022] [Indexed: 02/04/2023] Open
Abstract
Aldose reductase (ALR2) is the enzyme in charge of developing cellular toxicity caused by diabetic hyperglycemia, which in turn leads to the generation of reactive oxygen species triggering oxidative stress. Therefore, inhibiting ALR2 while pursuing a concomitant anti-oxidant activity through dual-acting agents is now recognized as the gold standard treatment for preventing or at least delaying the progression of diabetic complications. Herein we describe a novel series of (E)-benzaldehyde O-benzyl oximes 6a-e, 7a-e, 8a-e, and 9-11 as ALR2 inhibitors endowed with anti-oxidant properties. Inspired by the natural products, the synthesized derivatives are characterized by a different polyhydroxy substitution pattern on their benzaldehyde fragment, which proved crucial for both the enzyme inhibitory activity and the anti-oxidant capacity. Derivatives (E)-2,3,4-trihydroxybenzaldehyde O-(3-methoxybenzyl) oxime (7b) and (E)-2,3,4-trihydroxybenzaldehyde O-(4-methoxybenzyl) oxime (8b) turned out to be the most effective dual-acting products, proving to combine the best ALR2 inhibitory properties with significant anti-oxidant efficacy.
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Affiliation(s)
- Lidia Ciccone
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (L.C.); (G.P.); (F.B.)
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris Saclay, Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA), Institut National de Recherche pour l’Agricolture, l’Alimentation et l’Environment (INRAE), SIMoS, 91191 Gif-sur-Yvette, France; (C.F.-G.); (E.C.L.)
- Centre for Instrumentation Sharing, University of Pisa (CISUP), Lungarno Pacinotti 43, 56126 Pisa, Italy;
| | - Giovanni Petrarolo
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (L.C.); (G.P.); (F.B.)
| | - Francesca Barsuglia
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (L.C.); (G.P.); (F.B.)
| | - Carole Fruchart-Gaillard
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris Saclay, Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA), Institut National de Recherche pour l’Agricolture, l’Alimentation et l’Environment (INRAE), SIMoS, 91191 Gif-sur-Yvette, France; (C.F.-G.); (E.C.L.)
| | - Evelyne Cassar Lajeunesse
- Département Médicaments et Technologies pour la Santé (DMTS), Université Paris Saclay, Commissariat à l’Énergie Atomique et aux Énergies Alternatives (CEA), Institut National de Recherche pour l’Agricolture, l’Alimentation et l’Environment (INRAE), SIMoS, 91191 Gif-sur-Yvette, France; (C.F.-G.); (E.C.L.)
| | - Adeniyi T. Adewumi
- Molecular Bio-Computation and Drug Design Laboratory, School of Health Science, Westville Campus, University of KwaZulu-Natal, Durban 4001, South Africa; (A.T.A.); (M.E.S.S.)
| | - Mahmoud E. S. Soliman
- Molecular Bio-Computation and Drug Design Laboratory, School of Health Science, Westville Campus, University of KwaZulu-Natal, Durban 4001, South Africa; (A.T.A.); (M.E.S.S.)
| | - Concettina La Motta
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (L.C.); (G.P.); (F.B.)
- Centre for Instrumentation Sharing, University of Pisa (CISUP), Lungarno Pacinotti 43, 56126 Pisa, Italy;
| | - Elisabetta Orlandini
- Centre for Instrumentation Sharing, University of Pisa (CISUP), Lungarno Pacinotti 43, 56126 Pisa, Italy;
- Department of Earth Sciences, University of Pisa, Via Santa Maria 53, 56126 Pisa, Italy
- Research Center “E. Piaggio”, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
| | - Susanna Nencetti
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy; (L.C.); (G.P.); (F.B.)
- Centre for Instrumentation Sharing, University of Pisa (CISUP), Lungarno Pacinotti 43, 56126 Pisa, Italy;
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Perspective on the Structural Basis for Human Aldo-Keto Reductase 1B10 Inhibition. Metabolites 2021; 11:metabo11120865. [PMID: 34940623 PMCID: PMC8708191 DOI: 10.3390/metabo11120865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 12/24/2022] Open
Abstract
Human aldo-keto reductase 1B10 (AKR1B10) is overexpressed in many cancer types and is involved in chemoresistance. This makes AKR1B10 to be an interesting drug target and thus many enzyme inhibitors have been investigated. High-resolution crystallographic structures of AKR1B10 with various reversible inhibitors were deeply analyzed and compared to those of analogous complexes with aldose reductase (AR). In both enzymes, the active site included an anion-binding pocket and, in some cases, inhibitor binding caused the opening of a transient specificity pocket. Different structural conformers were revealed upon inhibitor binding, emphasizing the importance of the highly variable loops, which participate in the transient opening of additional binding subpockets. Two key differences between AKR1B10 and AR were observed regarding the role of external loops in inhibitor binding. The first corresponded to the alternative conformation of Trp112 (Trp111 in AR). The second difference dealt with loop A mobility, which defined a larger and more loosely packed subpocket in AKR1B10. From this analysis, the general features that a selective AKR1B10 inhibitor should comply with are the following: an anchoring moiety to the anion-binding pocket, keeping Trp112 in its native conformation (AKR1B10-like), and not opening the specificity pocket in AR.
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Bacha MM, Nadeem H, Zaib S, Sarwar S, Imran A, Rahman SU, Ali HS, Arif M, Iqbal J. Rhodanine-3-acetamide derivatives as aldose and aldehyde reductase inhibitors to treat diabetic complications: synthesis, biological evaluation, molecular docking and simulation studies. BMC Chem 2021; 15:28. [PMID: 33906691 PMCID: PMC8080350 DOI: 10.1186/s13065-021-00756-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 04/16/2021] [Indexed: 01/14/2023] Open
Abstract
In diabetes, increased accumulation of sorbitol has been associated with diabetic complications through polyol pathway. Aldose reductase (AR) is one of the key factors involved in reduction of glucose to sorbitol, thereby its inhibition is important for the management of diabetic complications. In the present study, a series of seven 4-oxo-2-thioxo-1,3-thiazolidin-3-yl acetamide derivatives 3(a–g) were synthesized by the reaction of 5-(4-hydroxy-3-methoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl acetic acid (2a) and 5-(4-methoxybenzylidene)-4-oxo-2-thioxo-1,3-thiazolidin-3-yl acetic acid (2b) with different amines. The synthesized compounds 3(a–g) were investigated for their in vitro aldehyde reductase (ALR1) and aldose reductase (ALR2) enzyme inhibitory potential. Compound 3c, 3d, 3e, and 3f showed ALR1 inhibition at lower micromolar concentration whereas all the compounds were more active than the standard inhibitor valproic acid. Most of the compounds were active against ALR2 but compound 3a and 3f showed higher inhibition than the standard drug sulindac. Overall, the most potent compound against aldose reductase was 3f with an inhibitory concentration of 0.12 ± 0.01 µM. In vitro results showed that vanillin derivatives exhibited better activity against both aldehyde reductase and aldose reductase. The molecular docking studies were carried out to investigate the binding affinities of synthesized derivatives with both ALR1 and ALR2. The binding site analysis of potent compounds revealed similar interactions as were found by cognate ligands within the active sites of enzymes.
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Affiliation(s)
- Mohsinul Mulk Bacha
- Department of Pharmaceutical Chemistry, RIPHAH Institute of Pharmaceutical Sciences G-7/4, Islamabad, Pakistan
| | - Humaira Nadeem
- Department of Pharmaceutical Chemistry, RIPHAH Institute of Pharmaceutical Sciences G-7/4, Islamabad, Pakistan.
| | - Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore, 54590, Pakistan
| | - Sadia Sarwar
- Department of Pharmacognosy, RIPHAH Institute of Pharmaceutical Sciences G-7/4, Islamabad, Pakistan
| | - Aqeel Imran
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Shafiq Ur Rahman
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Hafiz Saqib Ali
- Department of Chemistry & Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
| | - Muazzam Arif
- Department of Pharmaceutical Chemistry, RIPHAH Institute of Pharmaceutical Sciences G-7/4, Islamabad, Pakistan
| | - Jamshed Iqbal
- Centre for Advanced Drug Research, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
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11
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Jannapureddy S, Sharma M, Yepuri G, Schmidt AM, Ramasamy R. Aldose Reductase: An Emerging Target for Development of Interventions for Diabetic Cardiovascular Complications. Front Endocrinol (Lausanne) 2021; 12:636267. [PMID: 33776930 PMCID: PMC7992003 DOI: 10.3389/fendo.2021.636267] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/19/2021] [Indexed: 12/18/2022] Open
Abstract
Diabetes is a leading cause of cardiovascular morbidity and mortality. Despite numerous treatments for cardiovascular disease (CVD), for patients with diabetes, these therapies provide less benefit for protection from CVD. These considerations spur the concept that diabetes-specific, disease-modifying therapies are essential to identify especially as the diabetes epidemic continues to expand. In this context, high levels of blood glucose stimulate the flux via aldose reductase (AR) pathway leading to metabolic and signaling changes in cells of the cardiovascular system. In animal models flux via AR in hearts is increased by diabetes and ischemia and its inhibition protects diabetic and non-diabetic hearts from ischemia-reperfusion injury. In mouse models of diabetic atherosclerosis, human AR expression accelerates progression and impairs regression of atherosclerotic plaques. Genetic studies have revealed that single nucleotide polymorphisms (SNPs) of the ALD2 (human AR gene) is associated with diabetic complications, including cardiorenal complications. This Review presents current knowledge regarding the roles for AR in the causes and consequences of diabetic cardiovascular disease and the status of AR inhibitors in clinical trials. Studies from both human subjects and animal models are presented to highlight the breadth of evidence linking AR to the cardiovascular consequences of diabetes.
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Affiliation(s)
| | | | | | | | - Ravichandran Ramasamy
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Grossman School of Medicine, New York, NY, United States
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12
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Ottanà R, Paoli P, Cappiello M, Nguyen TN, Adornato I, Del Corso A, Genovese M, Nesi I, Moschini R, Naß A, Wolber G, Maccari R. In Search for Multi-Target Ligands as Potential Agents for Diabetes Mellitus and Its Complications-A Structure-Activity Relationship Study on Inhibitors of Aldose Reductase and Protein Tyrosine Phosphatase 1B. Molecules 2021; 26:molecules26020330. [PMID: 33435264 PMCID: PMC7828111 DOI: 10.3390/molecules26020330] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/05/2021] [Accepted: 01/07/2021] [Indexed: 12/31/2022] Open
Abstract
Diabetes mellitus (DM) is a complex disease which currently affects more than 460 million people and is one of the leading cause of death worldwide. Its development implies numerous metabolic dysfunctions and the onset of hyperglycaemia-induced chronic complications. Multiple ligands can be rationally designed for the treatment of multifactorial diseases, such as DM, with the precise aim of simultaneously controlling multiple pathogenic mechanisms related to the disease and providing a more effective and safer therapeutic treatment compared to combinations of selective drugs. Starting from our previous findings that highlighted the possibility to target both aldose reductase (AR) and protein tyrosine phosphatase 1B (PTP1B), two enzymes strictly implicated in the development of DM and its complications, we synthesised 3-(5-arylidene-4-oxothiazolidin-3-yl)propanoic acids and analogous 2-butenoic acid derivatives, with the aim of balancing the effectiveness of dual AR/PTP1B inhibitors which we had identified as designed multiple ligands (DMLs). Out of the tested compounds, 4f exhibited well-balanced AR/PTP1B inhibitory effects at low micromolar concentrations, along with interesting insulin-sensitizing activity in murine C2C12 cell cultures. The SARs here highlighted along with their rationalization by in silico docking experiments into both target enzymes provide further insights into this class of inhibitors for their development as potential DML antidiabetic candidates.
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Affiliation(s)
- Rosaria Ottanà
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Palatucci, Polo Universitario Annunziata, 98168 Messina, Italy; (R.O.); (I.A.)
| | - Paolo Paoli
- Department of Scienze Biomediche Sperimentali e Cliniche, Sezione di Scienze Biochimiche, University of Firenze, Viale Morgagni 50, 50134 Firenze, Italy; (P.P.); (M.G.); (I.N.)
| | - Mario Cappiello
- Department of Biology, Biochemistry Unit, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy; (M.C.); (A.D.C.); (R.M.)
| | - Trung Ngoc Nguyen
- Molecular Design Lab, Institute of Pharmacy, Freie Universität Berlin, Königin-Luisestr. 2 + 4, 14195 Berlin, Germany; (T.N.N.); (A.N.); (G.W.)
| | - Ilenia Adornato
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Palatucci, Polo Universitario Annunziata, 98168 Messina, Italy; (R.O.); (I.A.)
| | - Antonella Del Corso
- Department of Biology, Biochemistry Unit, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy; (M.C.); (A.D.C.); (R.M.)
| | - Massimo Genovese
- Department of Scienze Biomediche Sperimentali e Cliniche, Sezione di Scienze Biochimiche, University of Firenze, Viale Morgagni 50, 50134 Firenze, Italy; (P.P.); (M.G.); (I.N.)
| | - Ilaria Nesi
- Department of Scienze Biomediche Sperimentali e Cliniche, Sezione di Scienze Biochimiche, University of Firenze, Viale Morgagni 50, 50134 Firenze, Italy; (P.P.); (M.G.); (I.N.)
| | - Roberta Moschini
- Department of Biology, Biochemistry Unit, University of Pisa, Via S. Zeno, 51, 56123 Pisa, Italy; (M.C.); (A.D.C.); (R.M.)
| | - Alexandra Naß
- Molecular Design Lab, Institute of Pharmacy, Freie Universität Berlin, Königin-Luisestr. 2 + 4, 14195 Berlin, Germany; (T.N.N.); (A.N.); (G.W.)
| | - Gerhard Wolber
- Molecular Design Lab, Institute of Pharmacy, Freie Universität Berlin, Königin-Luisestr. 2 + 4, 14195 Berlin, Germany; (T.N.N.); (A.N.); (G.W.)
| | - Rosanna Maccari
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Palatucci, Polo Universitario Annunziata, 98168 Messina, Italy; (R.O.); (I.A.)
- Correspondence: ; Tel.: +39-090-6766406
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13
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Cappiello M, Balestri F, Moschini R, Mura U, Del-Corso A. Intra-site differential inhibition of multi-specific enzymes. J Enzyme Inhib Med Chem 2020; 35:840-846. [PMID: 32208768 PMCID: PMC7144184 DOI: 10.1080/14756366.2020.1743988] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 03/12/2020] [Accepted: 03/12/2020] [Indexed: 12/17/2022] Open
Abstract
The ability to catalyse a reaction acting on different substrates, known as "broad-specificity" or "multi-specificity", and to catalyse different reactions at the same active site ("promiscuity") are common features among the enzymes. These properties appear to go against the concept of extreme specificity of the catalytic action of enzymes and have been re-evaluated in terms of evolution and metabolic adaptation. This paper examines the potential usefulness of a differential inhibitory action in the study of the susceptibility to inhibition of multi-specific or promiscuous enzymes acting on different substrates. Aldose reductase is a multi-specific enzyme that catalyses the reduction of both aldoses and hydrophobic cytotoxic aldehydes and is used here as a concrete case to deal with the differential inhibition approach.
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Affiliation(s)
- Mario Cappiello
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, Pisa, Italy
| | - Francesco Balestri
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, Pisa, Italy
| | - Roberta Moschini
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, Pisa, Italy
| | - Umberto Mura
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
| | - Antonella Del-Corso
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, Pisa, Italy
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14
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Kousaxidis A, Petrou A, Lavrentaki V, Fesatidou M, Nicolaou I, Geronikaki A. Aldose reductase and protein tyrosine phosphatase 1B inhibitors as a promising therapeutic approach for diabetes mellitus. Eur J Med Chem 2020; 207:112742. [PMID: 32871344 DOI: 10.1016/j.ejmech.2020.112742] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023]
Abstract
Diabetes mellitus is a metabolic disease characterized by high blood glucose levels and usually associated with several chronic pathologies. Aldose reductase and protein tyrosine phosphatase 1B enzymes have identified as two novel molecular targets associated with the onset and progression of type II diabetes and related comorbidities. Although many inhibitors against these enzymes have already found in the field of diabetic mellitus, the research for discovering more effective and selective agents with optimal pharmacokinetic properties continues. In addition, dual inhibition of these target proteins has proved as a promising therapeutic approach. A variety of diverse scaffolds are presented in this review for the future design of potent and selective inhibitors of aldose reductase and protein tyrosine phosphatase 1B based on the most important structural features of both enzymes. The discovery of novel dual aldose reductase and protein tyrosine phosphatase 1B inhibitors could be effective therapeutic molecules for the treatment of insulin-resistant type II diabetes mellitus. The methods used comprise a literature survey and X-ray crystal structures derived from Protein Databank (PDB). Despite the available therapeutic options for type II diabetes mellitus, the inhibitors of aldose reductase and protein tyrosine phosphatase 1B could be two promising approaches for the effective treatment of hyperglycemia and diabetes-associated pathologies. Due to the poor pharmacokinetic profile and low in vivo efficacy of existing inhibitors of both targets, the research turned to more selective and cell-permeable agents as well as multi-target molecules.
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Affiliation(s)
- Antonios Kousaxidis
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, 54124, Greece
| | - Anthi Petrou
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, 54124, Greece
| | - Vasiliki Lavrentaki
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, 54124, Greece
| | - Maria Fesatidou
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, 54124, Greece
| | - Ioannis Nicolaou
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, 54124, Greece
| | - Athina Geronikaki
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, 54124, Greece.
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15
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Aldose Reductase Differential Inhibitors in Green Tea. Biomolecules 2020; 10:biom10071003. [PMID: 32640594 PMCID: PMC7407822 DOI: 10.3390/biom10071003] [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: 05/26/2020] [Revised: 06/28/2020] [Accepted: 07/02/2020] [Indexed: 12/11/2022] Open
Abstract
Aldose reductase (AKR1B1), the first enzyme in the polyol pathway, is likely involved in the onset of diabetic complications. Differential inhibition of AKR1B1 has been proposed to counteract the damaging effects linked to the activity of the enzyme while preserving its detoxifying ability. Here, we show that epigallocatechin gallate (EGCG), one of the most representative catechins present in green tea, acts as a differential inhibitor of human recombinant AKR1B1. A kinetic analysis of EGCG, and of its components, gallic acid (GA) and epigallocatechin (EGC) as inhibitors of the reduction of L-idose, 4-hydroxy2,3-nonenal (HNE), and 3-glutathionyl l-4-dihydroxynonanal (GSHNE) revealed for the compounds a different model of inhibition toward the different substrates. While EGCG preferentially inhibited L-idose and GSHNE reduction with respect to HNE, gallic acid, which was still active in inhibiting the reduction of the sugar, was less active in inhibiting HNE and GSHNE reduction. EGC was found to be less efficient as an inhibitor of AKR1B1 and devoid of any differential inhibitory action. A computational study defined different interactive modes for the three substrates on the AKR1B1 active site and suggested a rationale for the observed differential inhibition. A chromatographic fractionation of an alcoholic green tea extract revealed that, besides EGCG and GA, other components may exhibit the differential inhibition of AKR1B1.
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16
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Hlaváč M, Kováčiková L, Prnová MŠ, Šramel P, Addová G, Májeková M, Hanquet G, Boháč A, Štefek M. Development of Novel Oxotriazinoindole Inhibitors of Aldose Reductase: Isosteric Sulfur/Oxygen Replacement in the Thioxotriazinoindole Cemtirestat Markedly Improved Inhibition Selectivity. J Med Chem 2019; 63:369-381. [PMID: 31820975 DOI: 10.1021/acs.jmedchem.9b01747] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Inhibition of aldose reductase (AR), the first enzyme of the polyol pathway, is a promising approach in treatment of diabetic complications. We proceeded with optimization of the thioxotriazinoindole scaffold of the novel AR inhibitor cemtirestat by replacement of sulfur with oxygen. A series of 2-(3-oxo-2H-[1,2,4]triazino[5,6-b]indol-5(3H)-yl)acetic acid derivatives (OTIs), designed by molecular modeling and docking, were synthesized. More electronegative and less bulky oxygen of OTIs compared to the sulfur of the original thioxotriazinoindole congeners was found to form a stronger H-bond with Leu300 of AR and to render larger rotational flexibility of the carboxymethyl pharmacophore. AR inhibitory activities of the novel compounds were characterized by the IC50 values in a submicromolar range. Markedly enhanced inhibition selectivity relative to the structurally related aldehyde reductase was recorded. To conclude, structure modification of the original carboxymethylated thioxotriazinoindole cemtirestat by isosteric replacement of sulfur with oxygen in combination with variable N(2) simple substituents provided novel analogues with increased AR inhibition efficacy and markedly improved selectivity.
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Affiliation(s)
- Matúš Hlaváč
- Department of Organic Chemistry, Faculty of Natural Sciences , Comenius University in Bratislava , Ilkovičova 6 , 842 15 Bratislava , Slovakia
| | - Lucia Kováčiková
- Institute of Experimental Pharmacology and Toxicology, CEM, SAS , Dúbravská cesta 9 , 841 04 Bratislava , Slovakia
| | - Marta Šoltésová Prnová
- Institute of Experimental Pharmacology and Toxicology, CEM, SAS , Dúbravská cesta 9 , 841 04 Bratislava , Slovakia
| | - Peter Šramel
- Department of Organic Chemistry, Faculty of Natural Sciences , Comenius University in Bratislava , Ilkovičova 6 , 842 15 Bratislava , Slovakia
| | - Gabriela Addová
- Institute of Chemistry, Faculty of Natural Sciences , Comenius University in Bratislava , Ilkovičova 6 , 842 15 Bratislava , Slovakia
| | - Magdaléna Májeková
- Institute of Experimental Pharmacology and Toxicology, CEM, SAS , Dúbravská cesta 9 , 841 04 Bratislava , Slovakia
| | - Gilles Hanquet
- Université de Strasbourg, Université de Haute-Alsace, CNRS, UMR 7042-LIMA, ECPM , 25 rue Becquerel , 67087 Strasbourg , France
| | - Andrej Boháč
- Department of Organic Chemistry, Faculty of Natural Sciences , Comenius University in Bratislava , Ilkovičova 6 , 842 15 Bratislava , Slovakia.,Biomagi, Inc. , Mamateyova 26 , 851 04 Bratislava , Slovakia
| | - Milan Štefek
- Institute of Experimental Pharmacology and Toxicology, CEM, SAS , Dúbravská cesta 9 , 841 04 Bratislava , Slovakia
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17
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Balestri F, Barracco V, Renzone G, Tuccinardi T, Pomelli CS, Cappiello M, Lessi M, Rotondo R, Bellina F, Scaloni A, Mura U, Del Corso A, Moschini R. Stereoselectivity of Aldose Reductase in the Reduction of Glutathionyl-Hydroxynonanal Adduct. Antioxidants (Basel) 2019; 8:antiox8100502. [PMID: 31652566 PMCID: PMC6827081 DOI: 10.3390/antiox8100502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 12/11/2022] Open
Abstract
The formation of the adduct between the lipid peroxidation product 4-hydroxy-2-nonenal (HNE) and glutathione, which leads to the generation of 3-glutathionyl-4-hydroxynonane (GSHNE), is one of the main routes of HNE detoxification. The aldo-keto reductase AKR1B1 is involved in the reduction of the aldehydic group of both HNE and GSHNE. In the present study, the effect of chirality on the recognition by aldose reductase of HNE and GSHNE was evaluated. AKR1B1 discriminates very modestly between the two possible enantiomers of HNE as substrates. Conversely, a combined kinetic analysis of the glutathionyl adducts obtained starting from either 4R- or 4S-HNE and mass spectrometry analysis of GSHNE products obtained from racemic HNE revealed that AKR1B1 possesses a marked preference toward the 3S,4R-GSHNE diastereoisomer. Density functional theory and molecular modeling studies revealed that this diastereoisomer, besides having a higher tendency to be in an open aldehydic form (the one recognized by AKR1B1) in solution than other GSHNE diastereoisomers, is further stabilized in its open form by a specific interaction with the enzyme active site. The relevance of this stereospecificity to the final metabolic fate of GSHNE is discussed.
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Affiliation(s)
- Francesco Balestri
- Biochemistry Unit, Department of Biology, University of Pisa, via S. Zeno 51, 56127 Pisa, Italy.
- Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, 56124 Pisa, Italy.
| | - Vito Barracco
- Biochemistry Unit, Department of Biology, University of Pisa, via S. Zeno 51, 56127 Pisa, Italy.
| | - Giovanni Renzone
- Proteomics & Mass Spectrometry Laboratory, ISPAAM-CNR, Via Argine 1085, 80147 Napoli, Italy.
| | - Tiziano Tuccinardi
- Department of Pharmacy, University of Pisa, via Bonanno 6, 56126 Pisa, Italy.
| | | | - Mario Cappiello
- Biochemistry Unit, Department of Biology, University of Pisa, via S. Zeno 51, 56127 Pisa, Italy.
- Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, 56124 Pisa, Italy.
| | - Marco Lessi
- Department of Chemistry and Industrial Chemistry, University of Pisa, via G. Moruzzi, 13, 56124 Pisa, Italy.
| | - Rossella Rotondo
- Biochemistry Unit, Department of Biology, University of Pisa, via S. Zeno 51, 56127 Pisa, Italy.
| | - Fabio Bellina
- Department of Chemistry and Industrial Chemistry, University of Pisa, via G. Moruzzi, 13, 56124 Pisa, Italy.
| | - Andrea Scaloni
- Proteomics & Mass Spectrometry Laboratory, ISPAAM-CNR, Via Argine 1085, 80147 Napoli, Italy.
| | - Umberto Mura
- Biochemistry Unit, Department of Biology, University of Pisa, via S. Zeno 51, 56127 Pisa, Italy.
| | - Antonella Del Corso
- Biochemistry Unit, Department of Biology, University of Pisa, via S. Zeno 51, 56127 Pisa, Italy.
- Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, 56124 Pisa, Italy.
| | - Roberta Moschini
- Biochemistry Unit, Department of Biology, University of Pisa, via S. Zeno 51, 56127 Pisa, Italy.
- Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, 56124 Pisa, Italy.
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18
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Balestri F, De Leo M, Sorce C, Cappiello M, Quattrini L, Moschini R, Pineschi C, Braca A, La Motta C, Da Settimo F, Del-Corso A, Mura U. Soyasaponins from Zolfino bean as aldose reductase differential inhibitors. J Enzyme Inhib Med Chem 2019; 34:350-360. [PMID: 30734590 PMCID: PMC6327985 DOI: 10.1080/14756366.2018.1553166] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Seven triterpenoid saponins were identified in methanolic extracts of seeds of the Zolfino bean landrace (Phaseolus vulgaris L.) by HPLC fractionation, revealing their ability to inhibit highly purified human recombinant aldose reductase (hAKR1B1). Six of these compounds were associated by MS analysis with the following saponins already reported in different Phaseolus vulgaris varieties: soyasaponin Ba (V), soyasaponin Bb, soyasaponin Bd (sandosaponin A), soyasaponin αg, 3-O-[R-l-rhamnopyranosyl(1 → 2)-α-d-glucopyranosyl(1 → 2)-α-d-glucuronopyranosyl]olean-12-en-22-oxo-3α,-24-diol, and soyasaponin βg. The inhibitory activity of the collected fractions containing the above compounds was tested for hAKR1B1-dependent reduction of both l-idose and 4-hydroxynonenal, revealing that some are able to differentially inhibit the enzyme. The present work also highlights the difficulties in the search for aldose reductase differential inhibitors (ARDIs) in mixtures due to the masking effect on ARDIs exerted by the presence of conventional aldose reductase inhibitors. The possibility of differential inhibition generated by a different inhibitory model of action of molecules on different substrates undergoing transformation is also discussed.
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Affiliation(s)
- Francesco Balestri
- a Department of Biology , University of Pisa , Pisa , Italy.,b Interdepartmental Research Center Nutrafood ''Nutraceuticals and Food for Health'' , University of Pisa , Pisa , Italy
| | - Marinella De Leo
- b Interdepartmental Research Center Nutrafood ''Nutraceuticals and Food for Health'' , University of Pisa , Pisa , Italy.,c Department of Pharmacy , University of Pisa , Pisa , Italy
| | - Carlo Sorce
- a Department of Biology , University of Pisa , Pisa , Italy.,b Interdepartmental Research Center Nutrafood ''Nutraceuticals and Food for Health'' , University of Pisa , Pisa , Italy
| | - Mario Cappiello
- a Department of Biology , University of Pisa , Pisa , Italy.,b Interdepartmental Research Center Nutrafood ''Nutraceuticals and Food for Health'' , University of Pisa , Pisa , Italy
| | - Luca Quattrini
- c Department of Pharmacy , University of Pisa , Pisa , Italy
| | - Roberta Moschini
- a Department of Biology , University of Pisa , Pisa , Italy.,b Interdepartmental Research Center Nutrafood ''Nutraceuticals and Food for Health'' , University of Pisa , Pisa , Italy
| | - Carlotta Pineschi
- d PhD School in Biochemistry and Molecular Biology , University of Siena, Siena, Italy
| | - Alessandra Braca
- b Interdepartmental Research Center Nutrafood ''Nutraceuticals and Food for Health'' , University of Pisa , Pisa , Italy.,c Department of Pharmacy , University of Pisa , Pisa , Italy
| | - Concettina La Motta
- b Interdepartmental Research Center Nutrafood ''Nutraceuticals and Food for Health'' , University of Pisa , Pisa , Italy.,c Department of Pharmacy , University of Pisa , Pisa , Italy
| | | | - Antonella Del-Corso
- a Department of Biology , University of Pisa , Pisa , Italy.,b Interdepartmental Research Center Nutrafood ''Nutraceuticals and Food for Health'' , University of Pisa , Pisa , Italy
| | - Umberto Mura
- a Department of Biology , University of Pisa , Pisa , Italy.,b Interdepartmental Research Center Nutrafood ''Nutraceuticals and Food for Health'' , University of Pisa , Pisa , Italy
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19
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Ulusoy Güzeldemirci N, Cimok S, Daş-Evcimen N, Sarikaya M. Synthesis and Aldose Reductase Inhibitory Effect of Some New Hydrazinecarbothioamides and 4-Thiazolidinones Bearing an Imidazo[2,1- b]Thiazole Moiety. Turk J Pharm Sci 2018; 16:1-7. [PMID: 32454687 DOI: 10.4274/tjps.05900] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 11/30/2017] [Indexed: 12/22/2022]
Abstract
Objectives To synthesize and characterize 2-[[6-(4-bromophenyl)imidazo[2,1-b]thiazol-3-yl]acetyl]-N-alkyl/arylhydrazinecarbothioamide and 3-alkyl/aryl-2-[((6-(4-bromophenyl)imidazo[2,1-b]thiazol-3-yl)acetyl)hydrazono]-5-nonsubstituted/methyl-4-thiazolidinone derivatives and evaluate them for their aldose reductase (AR) inhibitory effect. Materials and Methods 2-[[6-(4-bromophenyl)imidazo[2,1-b]thiazol-3-yl]acetyl]-N-alkyl/arylhydrazinecarbothioamides (3a-f) and 3-alkyl/aryl-2-[((6-(4-bromophenyl)imidazo[2,1-b]thiazol-3-yl)acetyl)hydrazono]-5-nonsubstituted/methyl-4-thiazolidinones (4a-j) were synthesized from 2-[6-(4-bromophenyl)imidazo[2,1-b]thiazole-3-yl]acetohydrazide (2). Their structures were elucidated by elemental analyses and spectroscopic data. The synthesized compounds were tested for their ability to inhibit rat kidney AR. Results Among the synthesized compounds, 2-[[6-(4-bromophenyl)imidazo[2,1-b]thiazol-3-yl]acetyl]-N-benzoylhydrazinecarbothioamide (3d) showed the best AR inhibitory activity. Conclusion The findings of this study indicate that the different derivatives of the compounds in this study may be considered interesting candidates for future research.
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Affiliation(s)
| | - Selin Cimok
- İstanbul University, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, İstanbul, Turkey
| | - Net Daş-Evcimen
- Ankara University, Faculty of Pharmacy, Department of Biochemistry, Ankara, Turkey
| | - Mutlu Sarikaya
- Ankara University, Faculty of Pharmacy, Department of Biochemistry, Ankara, Turkey
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Balestri F, Quattrini L, Coviello V, Sartini S, Da Settimo F, Cappiello M, Moschini R, Del Corso A, Mura U, La Motta C. Acid Derivatives of Pyrazolo[1,5-a]pyrimidine as Aldose Reductase Differential Inhibitors. Cell Chem Biol 2018; 25:1414-1418.e3. [PMID: 30122369 DOI: 10.1016/j.chembiol.2018.07.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 04/20/2018] [Accepted: 07/23/2018] [Indexed: 10/28/2022]
Abstract
Aldose reductase (AKR1B1), the key enzyme of the polyol pathway, plays a crucial role in the development of long-term complications affecting diabetic patients. Nevertheless, the expedience of inhibiting this enzyme to treat diabetic complications has failed, due to the emergence of side effects from compounds under development. Actually AKR1B1 is a Janus-faced enzyme which, besides ruling the polyol pathway, takes part in the antioxidant defense mechanism of the body. In this work we report the evidence that a class of compounds, characterized by a pyrazolo[1,5-a]pyrimidine core and an ionizable fragment, modulates differently the catalytic activity of the enzyme, depending on the presence of specific substrates such as sugar, toxic aldehydes, and glutathione conjugates of toxic aldehydes. The study stands out as a systematic attempt to generate aldose reductase differential inhibitors (ARDIs) intended to target long-term diabetic complications while leaving unaltered the detoxifying role of the enzyme.
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Affiliation(s)
- Francesco Balestri
- Dipartimento di Biologia, Unità di Biochimica, Università di Pisa, Via L. Ghini 13, Pisa 56126, Italy
| | - Luca Quattrini
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, Pisa 56126, Italy
| | - Vito Coviello
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, Pisa 56126, Italy
| | - Stefania Sartini
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, Pisa 56126, Italy
| | - Federico Da Settimo
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, Pisa 56126, Italy
| | - Mario Cappiello
- Dipartimento di Biologia, Unità di Biochimica, Università di Pisa, Via L. Ghini 13, Pisa 56126, Italy
| | - Roberta Moschini
- Dipartimento di Biologia, Unità di Biochimica, Università di Pisa, Via L. Ghini 13, Pisa 56126, Italy
| | - Antonella Del Corso
- Dipartimento di Biologia, Unità di Biochimica, Università di Pisa, Via L. Ghini 13, Pisa 56126, Italy
| | - Umberto Mura
- Dipartimento di Biologia, Unità di Biochimica, Università di Pisa, Via L. Ghini 13, Pisa 56126, Italy
| | - Concettina La Motta
- Dipartimento di Farmacia, Università di Pisa, Via Bonanno 6, Pisa 56126, Italy.
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21
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Novel quinazolinone-based 2,4-thiazolidinedione-3-acetic acid derivatives as potent aldose reductase inhibitors. Future Med Chem 2017; 9:2147-2166. [DOI: 10.4155/fmc-2017-0149] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: Targeting aldose reductase enzyme with 2,4-thiazolidinedione-3-acetic acid derivatives having a bulky hydrophobic 3-arylquinazolinone residue. Materials & methods: All the target compounds were structurally characterized by different spectroscopic methods and microanalysis, their aldose reductase inhibitory activities were evaluated, and binding modes were studied by molecular modeling. Results: All the synthesized compounds proved to inhibit the target enzyme potently, exhibiting IC50 values in the nanomolar/low nanomolar range. Compound 5i (IC50 = 2.56 nM), the most active of the whole series, turned out to be almost 70-fold more active than the only marketed aldose reductase inhibitor epalrestat. Conclusion: This work represents a promising matrix for developing new potential therapeutic candidates for prevention of diabetic complications through targeting aldose reductase enzyme. [Formula: see text]
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Misuri L, Cappiello M, Balestri F, Moschini R, Barracco V, Mura U, Del-Corso A. The use of dimethylsulfoxide as a solvent in enzyme inhibition studies: the case of aldose reductase. J Enzyme Inhib Med Chem 2017; 32:1152-1158. [PMID: 28856935 PMCID: PMC6009938 DOI: 10.1080/14756366.2017.1363744] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 07/21/2017] [Accepted: 08/01/2017] [Indexed: 12/13/2022] Open
Abstract
Aldose reductase (AR) is an enzyme devoted to cell detoxification and at the same time is strongly involved in the aetiology of secondary diabetic complications and the amplification of inflammatory phenomena. AR is subjected to intense inhibition studies and dimethyl sulfoxide (DMSO) is often present in the assay mixture to keep the inhibitors in solution. DMSO was revealed to act as a weak but well detectable AR differential inhibitor, acting as a competitive inhibitor of the L-idose reduction, as a mixed type of non-competitive inhibitor of HNE reduction and being inactive towards 3-glutathionyl-4-hydroxynonanal transformation. A kinetic model of DMSO action with respect to differently acting inhibitors was analysed. Three AR inhibitors, namely the flavonoids neohesperidin dihydrochalcone, rutin and phloretin, were used to evaluate the effects of DMSO on the inhibition studies on the reduction of L-idose and HNE.
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Affiliation(s)
- Livia Misuri
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Tuscany Region PhD School in Biochemistry and Molecular Biology, Italy
| | - Mario Cappiello
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, Pisa, Italy
| | - Francesco Balestri
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, Pisa, Italy
| | - Roberta Moschini
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, Pisa, Italy
| | - Vito Barracco
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Tuscany Region PhD School in Biochemistry and Molecular Biology, Italy
| | - Umberto Mura
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, Pisa, Italy
| | - Antonella Del-Corso
- Department of Biology, Biochemistry Unit, University of Pisa, Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, Pisa, Italy
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Majekova M, Ballekova J, Prnova M, Stefek M. Structure optimization of tetrahydropyridoindole-based aldose reductase inhibitors improved their efficacy and selectivity. Bioorg Med Chem 2017; 25:6353-6360. [PMID: 29074349 DOI: 10.1016/j.bmc.2017.10.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/29/2017] [Accepted: 10/05/2017] [Indexed: 11/15/2022]
Abstract
In our previous study, tetrahydropyridoindoles carboxymethylated in position 8 were identified as aldose reductase (ALR2) inhibitors with mild efficacy and selectivity yet with significant antioxidant activity. In the present study we proceeded with optimization of the tetrahydropyridoindole scaffold by shifting the carboxymethyl pharmacophore from position 8 to position 5, with the aim to improve the biological activity. Commercial databases were screened for the presence of tetrahydropyridoindoles carboxymethylated in position 5 and an experimental set of eight compounds was created. Mild inhibition characterized by IC50 in micromolar range was recorded for compound 8 with the isopropyl substituent at the piperidine nitrogen (position 2). This alkylated tertiary nitrogen is characterized by a rather high basicity (pKa ∼ 10.4) with complete protonization at physiological pH. On the other hand, ALR2 inhibition activity of the low basicity derivatives 3-7 with an acyl substituted nitrogen in position 2 (pKa ∼ -1 to -3) was characterized with IC50 values in low and medium nanomolar region. Docking into the binding site of human recombinant enzyme AKR1B1 performed for 3 revealed an interaction network responsible for the high affinity and selectivity. In ex vivo experiment, sorbitol accumulation in isolated rat eye lenses was significantly inhibited by 3 in the presence of high glucose, starting at a concentration as low as 0.1 μM. Moreover, in streptozotocin-induced diabetic rats, compound 3 administered intragastrically (i.g., 50 mg/kg/day) for five consecutive days significantly inhibited sorbitol accumulation in red blood cells and the sciatic nerve. Molecular obesity indices predicted along with water solubility point an excellent "lead-likeness" of compound 3, with prospects of further structure optimizations.
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Affiliation(s)
- Magdalena Majekova
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dubravska cesta 9, 841 04 Bratislava, Slovakia
| | - Jana Ballekova
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dubravska cesta 9, 841 04 Bratislava, Slovakia
| | - Marta Prnova
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dubravska cesta 9, 841 04 Bratislava, Slovakia
| | - Milan Stefek
- Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dubravska cesta 9, 841 04 Bratislava, Slovakia.
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Papastavrou N, Chatzopoulou M, Ballekova J, Cappiello M, Moschini R, Balestri F, Patsilinakos A, Ragno R, Stefek M, Nicolaou I. Enhancing activity and selectivity in a series of pyrrol-1-yl-1-hydroxypyrazole-based aldose reductase inhibitors: The case of trifluoroacetylation. Eur J Med Chem 2017; 130:328-335. [DOI: 10.1016/j.ejmech.2017.02.053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/25/2017] [Accepted: 02/20/2017] [Indexed: 11/25/2022]
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25
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Balestri F, Moschini R, Cappiello M, Mura U, Del-Corso A. Thiol oxidase ability of copper ion is specifically retained upon chelation by aldose reductase. J Biol Inorg Chem 2017; 22:559-565. [PMID: 28224255 DOI: 10.1007/s00775-017-1447-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 02/15/2017] [Indexed: 12/28/2022]
Abstract
Bovine lens aldose reductase is susceptible to a copper-mediated oxidation, leading to the generation of a disulfide bridge with the concomitant incorporation of two equivalents of the metal and inactivation of the enzyme. The metal complexed by the protein remains redox active, being able to catalyse the oxidation of different physiological thiol compounds. The thiol oxidase activity displayed by the enzymatic form carrying one equivalent of copper ion (Cu1-AR) has been characterized. The efficacy of Cu1-AR in catalysing thiol oxidation is essentially comparable to the free copper in terms of both thiol concentration and pH effect. On the contrary, the two catalysts are differently affected by temperature. The specificity of the AR-bound copper towards thiols is highlighted with Cu1-AR being completely ineffective in promoting the oxidation of both low-density lipoprotein and ascorbic acid.
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Affiliation(s)
- Francesco Balestri
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy
| | - Roberta Moschini
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy
| | - Mario Cappiello
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy
| | - Umberto Mura
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy
| | - Antonella Del-Corso
- Biochemistry Unit, Department of Biology, University of Pisa, via San Zeno, 51, 56123, Pisa, Italy.
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26
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Balestri F, Sorce C, Moschini R, Cappiello M, Misuri L, Del Corso A, Mura U. Edible vegetables as a source of aldose reductase differential inhibitors. Chem Biol Interact 2017; 276:155-159. [PMID: 28159579 DOI: 10.1016/j.cbi.2017.01.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 01/18/2017] [Accepted: 01/29/2017] [Indexed: 11/25/2022]
Abstract
The hyperactivity of aldose reductase (AR) on glucose in diabetic conditions or on glutathionyl-hydroxynonenal in oxidative stress conditions, the source of cell damage and inflammation, appear to be balanced by the detoxifying action exerted by the enzyme. This detoxification acts on cytotoxic hydrophobic aldehydes deriving from membrane peroxidative processes. This may contribute to the failure in drug development for humans to favorably intervene in diabetic complications and inflammation, despite the specificity and high efficiency of several available aldose reductase inhibitors. This paper presents additional features to a previously proposed approach, on inhibiting the enzyme through molecules able to preferentially inhibit the enzyme depending on the substrate the enzyme is working on. These differential inhibitors (ARDIs) should act on glucose reduction catalyzed by AR without little or no effect on the reduction of alkenals or alkanals. The reasons why AR may be an eligible enzyme for differential inhibition are considered. These mainly refer to the evidence that, although AR is an unspecific enzyme that recognizes different substrates such as aldoses and hydrophobic aldehydes, it nevertheless displays a certain degree of specificity among substrates of the same class. After screening on edible vegetables, indications of the presence of molecules potentially acting as ARDIs are reported.
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Affiliation(s)
| | - Carlo Sorce
- University of Pisa, Department of Biology, Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy
| | - Roberta Moschini
- University of Pisa, Department of Biology, Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy
| | - Mario Cappiello
- University of Pisa, Department of Biology, Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy
| | - Livia Misuri
- University of Pisa, Department of Biology, Pisa, Italy; Tuscany Region PhD School in Biochemistry and Molecular Biology, Italy
| | - Antonella Del Corso
- University of Pisa, Department of Biology, Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy
| | - Umberto Mura
- University of Pisa, Department of Biology, Pisa, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy.
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Pradhan P, Upadhyay N, Tiwari A, Singh LP. Genetic and epigenetic modifications in the pathogenesis of diabetic retinopathy: a molecular link to regulate gene expression. ACTA ACUST UNITED AC 2016; 2:192-204. [PMID: 28691104 DOI: 10.15761/nfo.1000145] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Intensification in the frequency of diabetes and the associated vascular complications has been a root cause of blindness and visual impairment worldwide. One such vascular complication which has been the prominent cause of blindness; retinal vasculature, neuronal and glial abnormalities is diabetic retinopathy (DR), a chronic complicated outcome of Type 1 and Type 2 diabetes. It has also become clear that "genetic" variations in population alone can't explain the development and progression of diabetes and its complications including DR. DR experiences engagement of foremost mediators of diabetes such as hyperglycemia, oxidant stress, and inflammatory factors that lead to the dysregulation of "epigenetic" mechanisms involving histone acetylation and histone and DNA methylation, chromatin remodeling and expression of a complex set of stress-regulated and disease-associated genes. In addition, both elevated glucose concentration and insulin resistance leave a robust effect on epigenetic reprogramming of the endothelial cells too, since endothelium associated with the eye aids in maintaining the vascular homeostasis. Furthermore, several studies conducted on the disease suggest that the modifications of the epigenome might be the fundamental mechanism(s) for the proposed metabolic memory' resulting into prolonged gene expression for inflammation and cellular dysfunction even after attaining the glycemic control in diabetics. Henceforth, the present review focuses on the aspects of genetic and epigenetic alterations in genes such as vascular endothelial growth factor and aldose reductase considered being associated with DR. In addition, we discuss briefly the role of the thioredoxin-interacting protein TXNIP, which is strongly induced by high glucose and diabetes, in cellular oxidative stress and mitochondrial dysfunction potentially leading to chromatin remodeling and ocular complications of diabetes. The identification of disease-associated genes and their epigenetic regulations will lead to potential new drugs and gene therapies as well as personalized medicine to prevent or slow down the progression of DR.
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Affiliation(s)
- Priya Pradhan
- School of Biotechnology, Rajiv Gandhi Technical University, Bhopal, Madhya Pradesh, India
| | - Nisha Upadhyay
- School of Biotechnology, Rajiv Gandhi Technical University, Bhopal, Madhya Pradesh, India
| | - Archana Tiwari
- School of Biotechnology, Rajiv Gandhi Technical University, Bhopal, Madhya Pradesh, India
| | - Lalit P Singh
- Departments of Anatomy/Cell Biology and Ophthalmology, School of Medicine, Wayne State University, Detroit, MI, USA
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28
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Balestri F, Rotondo R, Moschini R, Pellegrino M, Cappiello M, Barracco V, Misuri L, Sorce C, Andreucci A, Del-Corso A, Mura U. Zolfino landrace (Phaseolus vulgaris L.) from Pratomagno: general and specific features of a functional food. Food Nutr Res 2016; 60:31792. [PMID: 27415159 PMCID: PMC4944724 DOI: 10.3402/fnr.v60.31792] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/16/2016] [Accepted: 06/16/2016] [Indexed: 11/18/2022] Open
Abstract
Background The Zolfino bean is a variety of Phaseolus vulgaris, which is cultivated in a limited area of Tuscany, Italy, and is widely appreciated for its flavor and culinary uses. Objectives A yellow Zolfino landrace cultivated in the Leccio-Reggello area was characterized and compared with three other varieties of Phaseolus vulgaris (i.e. the Borlotto, Cannellino, and Corona beans) in terms of its general features and potential as an antioxidant/anti-inflammatory agent. Design The length, width, thickness, equatorial section surface, weight, volume, and seed coat section were measured in all the beans. The seed surface area was also estimated by an original empirical method. The ability of the different beans to interfere with the enzymes of the polyol pathway (that is, aldose reductase (AR) and sorbitol dehydrogenase) was tested using the supernatant after soaking the beans at room temperature and after thermal treatment, which simulated the bean-cooking process in a controlled fashion. Results Concerning the general features, Zolfino was comparable with other beans, except Corona, in terms of surface–volume ratio, which possesses the lowest tegument thickness. Moreover, Zolfino appears the most effective in inhibiting AR activity. The inhibitory ability is unaffected by thermal treatment and appears to be associated with compound(s) present in the coat of the bean. Conclusions The ability of Zolfino to inhibit AR, thus reducing the flux of glucose through the polyol pathway, highlights the features of Zolfino as a functional food, potentially useful in treating the dysfunctions linked to the hyperactivity of AR, such as diabetic complications or inflammatory responses.
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Affiliation(s)
- Francesco Balestri
- Department of Biology, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood 'Nutraceuticals and Food for Health', University of Pisa, Pisa, Italy
| | | | - Roberta Moschini
- Department of Biology, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood 'Nutraceuticals and Food for Health', University of Pisa, Pisa, Italy
| | - Mario Pellegrino
- Department of Translational Research on New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
| | - Mario Cappiello
- Department of Biology, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood 'Nutraceuticals and Food for Health', University of Pisa, Pisa, Italy
| | - Vito Barracco
- Department of Biology, University of Pisa, Pisa, Italy
| | - Livia Misuri
- Department of Biology, University of Pisa, Pisa, Italy
| | - Carlo Sorce
- Department of Biology, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood 'Nutraceuticals and Food for Health', University of Pisa, Pisa, Italy
| | - Andrea Andreucci
- Department of Biology, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood 'Nutraceuticals and Food for Health', University of Pisa, Pisa, Italy
| | - Antonella Del-Corso
- Department of Biology, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood 'Nutraceuticals and Food for Health', University of Pisa, Pisa, Italy;
| | - Umberto Mura
- Department of Biology, University of Pisa, Pisa, Italy.,Interdepartmental Research Center Nutrafood 'Nutraceuticals and Food for Health', University of Pisa, Pisa, Italy
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Jagdale AD, Bavkar LN, More TA, Joglekar MM, Arvindekar AU. Strong inhibition of the polyol pathway diverts glucose flux to protein glycation leading to rapid establishment of secondary complications in diabetes mellitus. J Diabetes Complications 2016; 30:398-405. [PMID: 26896333 DOI: 10.1016/j.jdiacomp.2016.01.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 12/31/2015] [Accepted: 01/02/2016] [Indexed: 12/01/2022]
Abstract
BACKGROUND Polyol pathway and protein glycation are implicated in establishing secondary complications in diabetes. Their relative contribution to the process needs to be evaluated. It is essential to understand why some aldose reductase inhibitors (ARIs) trials are successful while some have failed and to study their effect on protein glycation. METHODS Aldose reductase (AR) was assayed using xylose as substrate; protein glycation was evaluated using total and specific fluorescence, fructoseamine and protein bound carbonyl content (PCO) measurements. Long term studies were carried out on streptozotocin induced diabetic rats for evaluation of urine parameters, tissue fluorescence. Anti-cataract action was studied by lens culture studies. RESULTS Epalrestat, a commercial ARI was also found to possess potent glycation inhibitory action. Long term experiments revealed strong protein glycation with higher concentration of citronellol (ARI) demonstrating shift in glucose flux. Treatment with epalrestat and limonene revealed improved urine parameters and tissue fluorescence. Lens culture studies revealed cataract formation at higher inhibition of AR while no lens opacity was observed at lower citronellol concentration and with limonene and epalrestat. CONCLUSION Strong inhibition of AR shifts the glucose flux to protein glycation causing damage. ARIs possessing protein glycation inhibition are more useful in amelioration of secondary complications.
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Affiliation(s)
- Ashwini D Jagdale
- Department of Biochemistry, Shivaji University, Kolhapur, 416004 Maharashtra, India
| | - Laxman N Bavkar
- Department of Biochemistry, Shivaji University, Kolhapur, 416004 Maharashtra, India
| | - Tanaji A More
- Department of Biochemistry, Shivaji University, Kolhapur, 416004 Maharashtra, India
| | - Madhav M Joglekar
- Department of Biochemistry, Shivaji University, Kolhapur, 416004 Maharashtra, India
| | - Akalpita U Arvindekar
- Department of Biochemistry, Shivaji University, Kolhapur, 416004 Maharashtra, India.
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Advanced Glycation End Products Evolution after Pancreas-Kidney Transplantation: Plasmatic and Cutaneous Assessments. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:2189582. [PMID: 26881017 PMCID: PMC4736383 DOI: 10.1155/2016/2189582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 10/11/2015] [Accepted: 11/10/2015] [Indexed: 12/15/2022]
Abstract
Diabetes mellitus leads to increased Advanced Glycation End Products (AGE) production, which has been associated with secondary diabetic complications. Type 1 diabetic patients undergoing pancreas-kidney transplantation (SPKT) can restore normoglycemia and renal function, eventually decreasing AGE accumulation. We aimed to prospectively study AGE evolution after SPKT. Circulating AGE were assessed in 20 patients, at time 0 (T0), 3 months (T3), 6 months (T6), and 12 months (T12) after successful SPKT. Global AGE and carboxymethyllysine (CML) were analyzed, as well as advanced oxidation protein products (AOPP). Skin biopsies were obtained at T0 and T12. Immunohistochemistry with anti-AGE antibody evaluated skin AGE deposition. AGE mean values were 16.8 ± 6.4 μg/mL at T0; 17.1 ± 3.8 μg/mL at T3; 17.5 ± 5.6 μg/mL at T6; and 16.0 ± 5.2 μg/mL at T12. CML mean values were 0.94 ± 0.36 ng/mL at T0; 1.11 ± 0.48 ng/mL at T3; 0.99 ± 0.42 ng/mL at T6; and 0.78 ± 0.38 ng/mL at T12. AOPP mean values were 130.1 ± 76.8 μMol/L at T0; 137.3 ± 110.6 μMol/L at T3; 116.4 ± 51.2 μMol/L at T6; and 106.4 ± 57.9 μMol/L at T12. CML variation was significant (P = 0.022); AOPP variation was nearly significant (P = 0.076). Skin biopsies evolved mostly from a cytoplasmic diffuse to a peripheral interkeratinocytic immunoreaction pattern; in 7 cases, a reduction in AGE immunoreaction intensity was evident at T12. In conclusion, glycoxidation markers decrease, plasmatic and on tissues, may start early after SPKT. Studies with prolonged follow-up may confirm these data.
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Dounousi E, Duni A, Leivaditis K, Vaios V, Eleftheriadis T, Liakopoulos V. Improvements in the Management of Diabetic Nephropathy. Rev Diabet Stud 2015; 12:119-33. [PMID: 26676665 DOI: 10.1900/rds.2015.12.119] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The burden of diabetes mellitus is relentlessly increasing. Diabetic nephropathy is the most common cause of end-stage renal disease (ESRD) worldwide and a major cause of morbidity and mortality in patients with diabetes. The current standard therapy of diabetic nephropathy involves intensive treatment of hyperglycemia and strict blood pressure control, mainly via blockade of the renin-angiotensin system (RAS). Attention has been drawn to additional beneficial effects of oral hypoglycemic drugs and fibrates on other aspects of diabetic nephropathy. On the other hand, antiproteinuric effects of RAS combination therapy do not seem to enhance the prevention of renal disease progression, and it has been associated with an increased rate of serious adverse events. Novel agents, such as bardoxolone methyl, pentoxifylline, inhibitors of protein kinase C (PKC), sulodexide, pirfenidone, endothelin receptor antagonists, vitamin D supplements, and phosphate binders have been associated with controversial outcomes or significant side effects. Although new insights into the pathogenetic mechanisms have opened new horizons towards novel interventions, there is still a long way to go in the field of DN research. The aim of this review is to highlight the recent progress made in the field of diabetes management based on the existing evidence. The article also discusses novel targets of therapy, with a special focus on the major pathophysiologic mechanisms implicated in the initiation and progression of diabetic nephropathy.
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Affiliation(s)
- Evangelia Dounousi
- University of Ioannina, School of Health Siences, Department of Internal Medicine, Division of Nephrology, Ioannina, Greece
| | - Anila Duni
- University of Ioannina, School of Health Siences, Department of Internal Medicine, Division of Nephrology, Ioannina, Greece
| | - Konstantinos Leivaditis
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, AHEPA Hospital, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Vasilios Vaios
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, AHEPA Hospital, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theodoros Eleftheriadis
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, AHEPA Hospital, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Vassilios Liakopoulos
- Division of Nephrology and Hypertension, 1st Department of Internal Medicine, AHEPA Hospital, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Balestri F, Cappiello M, Moschini R, Rotondo R, Abate M, Del-Corso A, Mura U. Modulation of aldose reductase activity by aldose hemiacetals. Biochim Biophys Acta Gen Subj 2015. [PMID: 26215787 DOI: 10.1016/j.bbagen.2015.07.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Glucose is considered as one of the main sources of cell damage related to aldose reductase (AR) action in hyperglycemic conditions and a worldwide effort is posed in searching for specific inhibitors of the enzyme. This AR substrate has often been reported as generating non-hyperbolic kinetics, mimicking a negative cooperative behavior. This feature was explained by the simultaneous action of two enzyme forms acting on the same substrate. METHODS The reduction of different aldoses and other classical AR substrates was studied using pure preparations of bovine lens and human recombinant AR. RESULTS The apparent cooperative behavior of AR acting on glucose and other hexoses and pentoses, but not on tethroses, glyceraldehyde, 4-hydroxynonenal and 4-nitrobenzaldehyde, is generated by a partial nonclassical competitive inhibition exerted by the aldose hemiacetal on the reduction of the free aldehyde. A kinetic model is proposed and kinetic parameters are determined for the reduction of l-idose. CONCLUSIONS Due to the unavoidable presence of the hemiacetal, glucose reduction by AR occurs under different conditions with respect to other relevant AR-substrates, such as alkanals and alkenals, coming from membrane lipid peroxidation. This may have implications in searching for AR inhibitors. The emerging kinetic parameters for the aldoses free aldehyde indicate the remarkable ability of the enzyme to interact and reduce highly hydrophilic and bulky substrates. GENERAL SIGNIFICANCE The discovery of aldose reductase modulation by hemiacetals offers a new perspective in searching for aldose reductase inhibitors to be developed as drugs counteracting the onset of diabetic complications.
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Affiliation(s)
- Francesco Balestri
- University of Pisa, Department of Biology, Biochemistry Unit, via San Zeno, 51, Pisa 56127, Italy
| | - Mario Cappiello
- University of Pisa, Department of Biology, Biochemistry Unit, via San Zeno, 51, Pisa 56127, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy
| | - Roberta Moschini
- University of Pisa, Department of Biology, Biochemistry Unit, via San Zeno, 51, Pisa 56127, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy
| | - Rossella Rotondo
- University of Pisa, Department of Biology, Biochemistry Unit, via San Zeno, 51, Pisa 56127, Italy
| | - Marco Abate
- University of Pisa, Department of Mathematics, via Buonarroti, 2, Pisa 56127, Italy
| | - Antonella Del-Corso
- University of Pisa, Department of Biology, Biochemistry Unit, via San Zeno, 51, Pisa 56127, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy.
| | - Umberto Mura
- University of Pisa, Department of Biology, Biochemistry Unit, via San Zeno, 51, Pisa 56127, Italy; Interdepartmental Research Center Nutrafood "Nutraceuticals and Food for Health", University of Pisa, Pisa, Italy
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Toobaei Z, Yousefi R, Panahi F, Shahidpour S, Nourisefat M, Doroodmand MM, Khalafi-Nezhad A. Synthesis of novel poly-hydroxyl functionalized acridine derivatives as inhibitors of α-Glucosidase and α-Amylase. Carbohydr Res 2015; 411:22-32. [DOI: 10.1016/j.carres.2015.04.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Revised: 04/07/2015] [Accepted: 04/09/2015] [Indexed: 10/23/2022]
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Stefek M, Soltesova Prnova M, Majekova M, Rechlin C, Heine A, Klebe G. Identification of novel aldose reductase inhibitors based on carboxymethylated mercaptotriazinoindole scaffold. J Med Chem 2015; 58:2649-57. [PMID: 25695864 DOI: 10.1021/jm5015814] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fifteen compounds, sharing an indole-1-acetic acid moiety as a common fragment, were selected from commercial databases for testing aldose reductase inhibition. 3-Mercapto-5H-1,2,4-triazino[5,6-b]indole-5-acetic acid (13) was the most promising inhibitor, with an IC50 in the submicromolar range and high selectivity, relative to aldehyde reductase. The crystal structure of aldose reductase complexed with 13 revealed an interaction pattern explaining its high affinity. Physicochemical parameters underline the excellent "leadlikeness" of 13 as a promising candidate for further structure optimizations.
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Affiliation(s)
- Milan Stefek
- †Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dubravska Cesta 9, 841 04 Bratislava, Slovakia
| | - Marta Soltesova Prnova
- †Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dubravska Cesta 9, 841 04 Bratislava, Slovakia
| | - Magdalena Majekova
- †Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences, Dubravska Cesta 9, 841 04 Bratislava, Slovakia
| | - Chris Rechlin
- ‡Department of Pharmaceutical Chemistry, Philipps-University Marburg, Marbacher Weg 6, 35032 Marburg, Germany
| | - Andreas Heine
- ‡Department of Pharmaceutical Chemistry, Philipps-University Marburg, Marbacher Weg 6, 35032 Marburg, Germany
| | - Gerhard Klebe
- ‡Department of Pharmaceutical Chemistry, Philipps-University Marburg, Marbacher Weg 6, 35032 Marburg, Germany
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Balestri F, Cappiello M, Moschini R, Rotondo R, Buggiani I, Pelosi P, Mura U, Del-Corso A. l-Idose: an attractive substrate alternative to d-glucose for measuring aldose reductase activity. Biochem Biophys Res Commun 2015; 456:891-5. [DOI: 10.1016/j.bbrc.2014.12.054] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 12/11/2014] [Indexed: 11/30/2022]
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Maccari R, Ottanà R. Targeting Aldose Reductase for the Treatment of Diabetes Complications and Inflammatory Diseases: New Insights and Future Directions. J Med Chem 2014; 58:2047-67. [DOI: 10.1021/jm500907a] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Rosanna Maccari
- Dipartimento
di Scienze del
Farmaco e dei Prodotti per la Salute, Università degli Studi di Messina, Polo Universitario dell’Annunziata, 98168 Messina, Italy
| | - Rosaria Ottanà
- Dipartimento
di Scienze del
Farmaco e dei Prodotti per la Salute, Università degli Studi di Messina, Polo Universitario dell’Annunziata, 98168 Messina, Italy
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Guo H, Del Corso A, Huang LQ, Mura U, Pelosi P, Wang CZ. Aldehyde reductase activity in the antennae of Helicoverpa armigera. INSECT MOLECULAR BIOLOGY 2014; 23:330-340. [PMID: 24580848 DOI: 10.1111/imb.12084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the present study, we identified two aldehyde reductase activities in the antennae of Helicoverpa species, NADH and NADPH-dependent activity. We expressed one of these proteins of H. armigera, aldo-keto reductase (AKR), which bears 56% identity to bovine aldose reductase, displays a NADPH-dependent activity and is mainly expressed in the antennae of adults. Whole-mount immunostaining showed that the enzyme is concentrated in the cells at the base of chemosensilla and in the nerves. The enzyme activity of H. armigera AKR is markedly different from those of mammalian enzymes. The best substrates are linear aliphatic aldehydes of 8-10 carbon atoms, but not hydroxyaldehydes. Both pheromone components of H. armigera, which are unsaturated aldehydes of 16 carbons, are very poor substrates. Unlike mammalian AKRs, the H. armigera enzyme is weakly affected by common inhibitors and exhibits a different behaviour from the action of thiols. A model of the enzyme suggests that the four cysteines are in their reduced form, as are the seven cysteines of mammalian enzymes. The occurrence of orthologous proteins in other insect species, that do not use aldehydes as pheromones, excludes the possibility of classifying this enzyme among the pheromone-degrading enzymes, as has been previously described in other insect species.
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Affiliation(s)
- H Guo
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
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Structure-activity relationships and molecular modelling of new 5-arylidene-4-thiazolidinone derivatives as aldose reductase inhibitors and potential anti-inflammatory agents. Eur J Med Chem 2014; 81:1-14. [PMID: 24819954 DOI: 10.1016/j.ejmech.2014.05.003] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 04/28/2014] [Accepted: 05/01/2014] [Indexed: 11/21/2022]
Abstract
A series of 5-(carbamoylmethoxy)benzylidene-2-oxo/thioxo-4-thiazolidinone derivatives (6-9) were synthesized as inhibitors of aldose reductase (AR), enzyme which plays a crucial role in the development of diabetes complications as well as in the inflammatory processes associated both to diabetes mellitus and to other pathologies. In vitro inhibitory activity indicated that compounds 6-9a-d were generally good AR inhibitors. Acetic acid derivatives 8a-d and 9a-d were shown to be the best enzyme inhibitors among the tested compounds endowed with significant inhibitory ability levels reaching submicromolar IC50 values. Moreover, some representative AR inhibitors (7a, 7c, 9a, 9c, 9d) were assayed in cultures of human keratinocytes in order to evaluate their capability to reduce NF-kB activation and iNOS expression. Compound 9c proved to be the best derivative endowed with both interesting AR inhibitory effectiveness and ability to reduce NF-kB activation and iNOS expression. Molecular docking and molecular dynamics simulations were undertaken to investigate the binding modes of selected compounds into the active site of AR in order to rationalize the inhibitory effectiveness of these derivatives.
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Raj PS, Prathapan A, Sebastian J, Antony AK, Riya MP, Rani MRP, Biju H, Priya S, Raghu KG. Parmotrema tinctorum exhibits antioxidant, antiglycation and inhibitory activities against aldose reductase and carbohydrate digestive enzymes: an in vitro study. Nat Prod Res 2014; 28:1480-4. [PMID: 24735436 DOI: 10.1080/14786419.2014.909420] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This study evaluated the inhibitory potential of ethyl acetate extract of Parmotrema tinctorum (PTEE), an edible lichen, against aldose reductase (AR) and carbohydrate digestive enzymes such as α-glucosidase and α-amylase. It was also screened for antioxidant activities by using DPPH, ABTS, superoxide and hydroxyl radical-scavenging assays. PTEE exhibited α-glucosidase, α-amylase and AR inhibition along with significant antiglycation potential with an estimated IC50 value of 58.45 ± 1.24, 587.74 ± 3.27, 139.28 ± 2.6 and 285.78 ± 1.287 μg/mL, respectively. Antioxidant activity of PTEE against DPPH (IC50 396.83 ± 2.98 μg/mL), ABTS (151.34 ± 1.79 μg/mL), superoxide (30.29 ± 1.17 μg/mL) and hydroxyl (35.42 ± 1.22 μg/mL) radicals suggests the antioxidant potential of P. tinctorum. Significant antioxidant activity and inhibitory potential against carbohydrate digestive enzymes and AR suggest that P. tinctorum can be developed as functional food/nutraceuticals for diabetes after detailed study.
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Affiliation(s)
- P Salin Raj
- a Agroprocessing and Natural Products Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST) , Pappanamcode, Thiruvananthapuram , Kerala 695019 , India
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Cappiello M, Moschini R, Balestri F, Mura U, Del-Corso A. Basic models for differential inhibition of enzymes. Biochem Biophys Res Commun 2014; 445:556-60. [DOI: 10.1016/j.bbrc.2014.02.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 02/06/2014] [Indexed: 10/25/2022]
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Chatzopoulou M, Pegklidou K, Papastavrou N, Demopoulos VJ. Development of aldose reductase inhibitors for the treatment of inflammatory disorders. Expert Opin Drug Discov 2013; 8:1365-80. [PMID: 24090200 DOI: 10.1517/17460441.2013.843524] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Accumulating evidence attributes a significant role to aldose reductase (ALR2) in the pathogenesis of several inflammatory pathologies. Aldose reductase inhibitors (ARIs) were found to attenuate reactive oxygen species (ROS) production both in vitro and in vivo. Thus, they disrupt signaling cascades that lead to the production of cytokines/chemokines, which induce and exacerbate inflammation. As a result, ARIs might hold a significant therapeutic potential as alternate anti-inflammatory drugs. AREAS COVERED The authors present a comprehensive review of the current data that support the central role of ALR2 in several inflammatory pathologies (i.e., diabetes, cancer, sepsis, asthma and ocular inflammation). Further, the authors describe the potential underlying molecular mechanisms and provide a commentary on the status of ARIs in this field. EXPERT OPINION It is important that future efforts focus on delineating all the steps of the molecular mechanism that implicates ALR2 in inflammatory pathologies. At the same time, utilizing the previous efforts in the field of ARIs, several candidates that have been proven safe in the clinic may be evaluated for their clinical significance as anti-inflammatory medication. Finally, structurally novel ARIs, designed to target specifically the proinflammatory subpocket of ALR2, should be pursued.
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Affiliation(s)
- Maria Chatzopoulou
- Aristotle University of Thessaloniki, School of Pharmacy, Department of Pharmaceutical Chemistry , 54124 Thessaloniki , Greece ;
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