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Atiga S, Saunders GC, Henderson W. Selenosalicylate; a little-studied heavy-element analogue of the versatile thiosalicylate ligand. RSC Adv 2024; 14:12323-12336. [PMID: 38633482 PMCID: PMC11019910 DOI: 10.1039/d4ra00926f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/02/2024] [Indexed: 04/19/2024] Open
Abstract
Selenosalicylic acid (ortho-HSeC6H4CO2H), the heavy element congener of the widely studied thiosalicylic acid, was prepared by reaction of 2-carboxybenzenediazonium chloride (HO2CC6H4N2+Cl-) with Na2Se2, followed by reduction of the resulting diselenide (SeC6H4CO2H)2 with zinc and acetic acid. The coordination chemistry of the selenosalicylate ligand towards a variety of platinum(ii), palladium(ii), nickel(ii), gold(iii), gold(i), rhodium(iii), iridium(iii) and ruthenium(ii) centres was explored. X-ray crystal structure determinations were carried out on the complexes [Pt(SeC6H4CO2)(PPh3)2], [{(p-cym)Ru(SeC6H4CO2)}2] (p-cym = η6-p-cymene, CH3C6H4CH(CH3)2), [{Cp*Rh(SeC6H4CO2)}2] (Cp* = η5-C5Me5) and [Cp*Ir(SeC6H4CO2)(PPh3)], and comparisons are made with corresponding thiosalicylate complexes. The complexes were characterised by NMR spectroscopy as well as ESI mass spectrometry, which indicated a greater propensity for fragmentation including by selenium loss, compared to the thiosalicylate analogues. Hirshfeld surface analysis to visualise and quantify intermolecular interactions revealed the dominance of H⋯H contacts in [{(p-cym)Ru(SeC6H4CO2)}2] and [Cp*Ir(SeC6H4CO2)(PPh3)].
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Affiliation(s)
- Simeon Atiga
- Chemistry, School of Science, University of Waikato Private Bag 3105 Hamilton 3240 New Zealand
- Department of Chemistry, Faculty of Natural Sciences, Kogi State University PMB 1008, Anyigba Kogi State Nigeria
| | - Graham C Saunders
- Chemistry, School of Science, University of Waikato Private Bag 3105 Hamilton 3240 New Zealand
| | - William Henderson
- Chemistry, School of Science, University of Waikato Private Bag 3105 Hamilton 3240 New Zealand
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2
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Kostova I. Therapeutic and Diagnostic Agents based on Bioactive Endogenous and Exogenous Coordination Compounds. Curr Med Chem 2024; 31:358-386. [PMID: 36944628 DOI: 10.2174/0929867330666230321110018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/25/2023] [Accepted: 02/10/2023] [Indexed: 03/23/2023]
Abstract
Metal-based coordination compounds have very special place in bioinorganic chemistry because of their different structural arrangements and significant application in medicine. Rapid progress in this field increasingly enables the targeted design and synthesis of metal-based pharmaceutical agents that fulfill valuable roles as diagnostic or therapeutic agents. Various coordination compounds have important biological functions, both those initially present in the body (endogenous) and those entering the organisms from the external environment (exogenous): vitamins, drugs, toxic substances, etc. In the therapeutic and diagnostic practice, both the essential for all living organisms and the trace metals are used in metal-containing coordination compounds. In the current review, the most important functional biologically active compounds were classified group by group according to the position of the elements in the periodic table.
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Affiliation(s)
- Irena Kostova
- Department of Chemistry, Faculty of Pharmacy, Medical University-Sofia, 2 Dunav St., Sofia 1000, Bulgaria
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3
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Mohammadgholi M, Hosseinimehr SJ. Crosstalk between Oxidative Stress and Inflammation Induced by Ionizing Radiation in Healthy and Cancerous Cells. Curr Med Chem 2024; 31:2751-2769. [PMID: 37026495 DOI: 10.2174/0929867330666230407104208] [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: 11/04/2022] [Revised: 02/18/2023] [Accepted: 02/24/2023] [Indexed: 04/08/2023]
Abstract
Radiotherapy (RT) is a unique modality in cancer treatment with no replacement in many cases and uses a tumoricidal dose of various ionizing radiation (IR) types to kill cancer cells. It causes oxidative stress through reactive oxygen species (ROS) production or the destruction of antioxidant systems. On the other hand, RT stimulates the immune system both directly and indirectly by releasing danger signals from stress-exposed and dying cells. Oxidative stress and inflammation are two reciprocal and closely related mechanisms, one induced and involved by the other. ROS regulates the intracellular signal transduction pathways, which participate in the activation and expression of pro-inflammatory genes. Reciprocally, inflammatory cells release ROS and immune system mediators during the inflammation process, which drive the induction of oxidative stress. Oxidative stress or inflammation-induced damages can result in cell death (CD) or survival mechanisms that may be destructive for normal cells or beneficial for cancerous cells. The present study has focused on the radioprotection of those agents with binary effects of antioxidant and anti-inflammatory mechanisms IR-induced CD.
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Affiliation(s)
- Mohsen Mohammadgholi
- Department of Radiopharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Jalal Hosseinimehr
- Department of Radiopharmacy, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
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Frąckowiak-Wojtasek B, Gąsowska-Bajger B, Tarasek D, Mytnik M, Wojtasek H. Oxidation of anti-thyroid drugs and their selenium analogs by ABTS radical cation. Bioorg Chem 2023; 141:106891. [PMID: 37788560 DOI: 10.1016/j.bioorg.2023.106891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/05/2023]
Abstract
Lactoperoxidase was previously used as a model enzyme to test the inhibitory activity of selenium analogs of anti-thyroid drugs with 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) as a substrate. Peroxidases oxidize ABTS to a metastable radical ABTS•+, which is readily reduced by many antioxidants, including thiol-containing compounds, and it has been used for decades to measure antioxidant activity in biological samples. We showed that anti-thyroid drugs 6-n-propyl-2-thiouracil, methimazole, and selenium analogs of methimazole also reduced it rapidly. This reaction may explain the anti-thyroid action of many other compounds, particularly natural antioxidants, which may reduce the oxidized form of iodine and/or tyrosyl radicals generated by thyroid peroxidase thus decreasing the production of thyroid hormones. However, influence of selenium analogs of methimazole on the rate of hydrogen peroxide consumption during oxidation of ABTS by lactoperoxidase was moderate. Direct hydrogen peroxide reduction, proposed before as their mechanism of action, cannot therefore account for the observed inhibitory effects. 1-Methylimidazole-2-selone and its diselenide were oxidized by ABTS•+ to relatively stable seleninic acid, which decomposed slowly to selenite and 1-methylimidazole. In contrast, oxidation of 1,3-dimethylimidazole-2-selone gave selenite and 1,3-dimethylimidazolium cation. Accumulation of the corresponding seleninic acid was not observed.
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Affiliation(s)
| | | | - Damian Tarasek
- Institute of Chemistry, Opole University, Ul. Oleska 48, 45-052 Opole, Poland
| | - Martyna Mytnik
- Institute of Chemistry, Opole University, Ul. Oleska 48, 45-052 Opole, Poland
| | - Hubert Wojtasek
- Institute of Chemistry, Opole University, Ul. Oleska 48, 45-052 Opole, Poland.
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5
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Elsaeed MY, Mehanna OM, Abd-Allah EEE, Hassan MG, Ahmed WMS, Moustafa AEGA, Eldesoky GE, Hammad AM, Elgazzar UB, Elnady MR, Abd-Allah FM, Shipl WM, Younes AM, Magar MR, Amer AE, Abbas MAM, Elhamaky KSA, Hassan MHM. Combination Therapy with Enalapril and Paricalcitol Ameliorates Streptozotocin Diabetes-Induced Testicular Dysfunction in Rats via Mitigation of Inflammation, Apoptosis, and Oxidative Stress. PATHOPHYSIOLOGY 2023; 30:567-585. [PMID: 38133142 PMCID: PMC10747062 DOI: 10.3390/pathophysiology30040041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/12/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND As the impacts of diabetes-induced reproductive damage are now evident in young people, we are now in urgent need to devise new ways to protect and enhance the reproductive health of diabetic people. The present study aimed to evaluate the protective effects of enalapril (an ACE inhibitor) and paricalcitol (a vitamin D analog), individually or in combination, on streptozotocin (STZ)-diabetes-induced testicular dysfunction in rats and to identify the possible mechanisms for this protection. MATERIAL AND METHODS This study was carried out on 50 male Sprague-Dawley rats; 10 normal rats were allocated as a non-diabetic control group. A total of 40 rats developed diabetes after receiving a single dose of STZ; then, the diabetic rats were divided into four groups of equivalent numbers assigned as diabetic control, enalapril-treated, paricalcitol-treated, and combined enalapril-and-paricalcitol-treated groups. The effects of mono and combined therapy with paricalcitol and enalapril on testicular functions, sperm activity, glycemic state oxidative stress, and inflammatory parameters, as well as histopathological examinations, were assessed in comparison with the normal and diabetic control rats. RESULTS As a result of diabetes induction, epididymal sperm count, sperm motility, serum levels of testosterone, follicle-stimulating hormone (FSH) as well as luteinizing hormone (LH), and the antioxidant enzyme activities, were significantly decreased, while abnormal sperm (%), insulin resistance, nitric oxide (NO), malondialdehyde (MDA), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) were significantly increased, along with severe distortion of the testicular structure. Interestingly, treatment with paricalcitol and enalapril, either alone or in combination, significantly improved the sperm parameters, increased antioxidant enzyme activities in addition to serum levels of testosterone, FSH, and LH, reduced insulin resistance, IL-6, and TNF-α levels, and finally ameliorated the diabetes-induced testicular oxidative stress and histopathological damage, with somewhat superior effect for paricalcitol monotherapy and combined therapy with both drugs compared to monotherapy with enalapril alone. CONCLUSIONS Monotherapy with paricalcitol and its combination therapy with enalapril has a somewhat superior effect in improving diabetes-induced testicular dysfunction (most probably as a result of their hypoglycemic, antioxidant, anti-inflammatory, and anti-apoptotic properties) compared with monotherapy with enalapril alone in male rats, recommending a synergistic impact of both drugs.
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Affiliation(s)
- Magdy Y. Elsaeed
- Department of Physiology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (O.M.M.); (M.G.H.); (W.M.S.A.); (M.R.E.); (M.A.M.A.); (K.S.A.E.)
- Department of Physiology, Faculty of Medicine, HORUS University, Damietta 34517, Egypt
| | - Osama Mahmoud Mehanna
- Department of Physiology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (O.M.M.); (M.G.H.); (W.M.S.A.); (M.R.E.); (M.A.M.A.); (K.S.A.E.)
- Department of Physiology, Faculty of Medicine, HORUS University, Damietta 34517, Egypt
| | - Ezz-Eldin E. Abd-Allah
- Department of Histology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (E.-E.E.A.-A.); (A.E.G.A.M.); (F.M.A.-A.)
| | - Mohamed Gaber Hassan
- Department of Physiology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (O.M.M.); (M.G.H.); (W.M.S.A.); (M.R.E.); (M.A.M.A.); (K.S.A.E.)
- Department of Physiology, Faculty of Medicine, HORUS University, Damietta 34517, Egypt
| | - Walid Mostafa Said Ahmed
- Department of Physiology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (O.M.M.); (M.G.H.); (W.M.S.A.); (M.R.E.); (M.A.M.A.); (K.S.A.E.)
| | - Abd El Ghany A. Moustafa
- Department of Histology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (E.-E.E.A.-A.); (A.E.G.A.M.); (F.M.A.-A.)
| | - Gaber E. Eldesoky
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Amal M. Hammad
- Department of Biochemistry, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (A.M.H.); (U.B.E.)
| | - Usama Bahgat Elgazzar
- Department of Biochemistry, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (A.M.H.); (U.B.E.)
| | - Mohamed R. Elnady
- Department of Physiology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (O.M.M.); (M.G.H.); (W.M.S.A.); (M.R.E.); (M.A.M.A.); (K.S.A.E.)
- Department of Physiology, Faculty of Medicine, HORUS University, Damietta 34517, Egypt
| | - Fatma M. Abd-Allah
- Department of Histology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (E.-E.E.A.-A.); (A.E.G.A.M.); (F.M.A.-A.)
| | - Walaa M. Shipl
- Department of Biochemistry and Molecular Biology, Faculty of Medicine for Girls, Al-Azhar University, Cairo 11765, Egypt;
| | - Amr Mohamed Younes
- Department of Basic Dental Sciences, Faculty of Dentistry, Applied Science Private University, Al-Arab Street, Amman 11196, Jordan;
- Department of Anatomy and Embryology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (A.E.A.); (M.H.M.H.)
| | - Mostafa Rizk Magar
- Department of Restorative Dentistry and Basic Medical Sciences, Faculty of Dentistry, University of Petra, Amman 11196, Jordan;
- Department of Anatomy and Embryology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (A.E.A.); (M.H.M.H.)
| | - Ahmed E. Amer
- Department of Anatomy and Embryology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (A.E.A.); (M.H.M.H.)
| | - Mohamed Ali Mahmoud Abbas
- Department of Physiology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (O.M.M.); (M.G.H.); (W.M.S.A.); (M.R.E.); (M.A.M.A.); (K.S.A.E.)
- Department of Basic Dental Sciences, Faculty of Dentistry, Applied Science Private University, Al-Arab Street, Amman 11196, Jordan;
| | - Khaled Saleh Ali Elhamaky
- Department of Physiology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (O.M.M.); (M.G.H.); (W.M.S.A.); (M.R.E.); (M.A.M.A.); (K.S.A.E.)
| | - Mohammed Hussien Mohammed Hassan
- Department of Anatomy and Embryology, Damietta Faculty of Medicine, Al-Azhar University, Damietta 34517, Egypt; (A.E.A.); (M.H.M.H.)
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Cecchini AL, Biscetti F, Manzato M, Lo Sasso L, Rando MM, Nicolazzi MA, Rossini E, Eraso LH, Dimuzio PJ, Massetti M, Gasbarrini A, Flex A. Current Medical Therapy and Revascularization in Peripheral Artery Disease of the Lower Limbs: Impacts on Subclinical Chronic Inflammation. Int J Mol Sci 2023; 24:16099. [PMID: 38003290 PMCID: PMC10671371 DOI: 10.3390/ijms242216099] [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: 09/27/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/26/2023] Open
Abstract
Peripheral artery disease (PAD), coronary artery disease (CAD), and cerebrovascular disease (CeVD) are characterized by atherosclerosis and inflammation as their underlying mechanisms. This paper aims to conduct a literature review on pharmacotherapy for PAD, specifically focusing on how different drug classes target pro-inflammatory pathways. The goal is to enhance the choice of therapeutic plans by considering their impact on the chronic subclinical inflammation that is associated with PAD development and progression. We conducted a comprehensive review of currently published original articles, narratives, systematic reviews, and meta-analyses. The aim was to explore the relationship between PAD and inflammation and evaluate the influence of current pharmacological and nonpharmacological interventions on the underlying chronic subclinical inflammation. Our findings indicate that the existing treatments have added anti-inflammatory properties that can potentially delay or prevent PAD progression and improve outcomes, independent of their effects on traditional risk factors. Although inflammation-targeted therapy in PAD shows promising potential, its benefits have not been definitively proven yet. However, it is crucial not to overlook the pleiotropic properties of the currently available treatments, as they may provide valuable insights for therapeutic strategies. Further studies focusing on the anti-inflammatory and immunomodulatory effects of these treatments could enhance our understanding of the mechanisms contributing to the residual risk in PAD and pave the way for the development of novel therapies.
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Affiliation(s)
- Andrea Leonardo Cecchini
- Cardiovascular Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Federico Biscetti
- Cardiovascular Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Matteo Manzato
- Facoltà di Medicina e Chirurgia, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Lorenzo Lo Sasso
- Facoltà di Medicina e Chirurgia, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Maria Margherita Rando
- Cardiovascular Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Maria Anna Nicolazzi
- Cardiovascular Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Enrica Rossini
- Cardiovascular Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Luis H. Eraso
- Division of Vascular and Endovascular Surgery, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Paul J. Dimuzio
- Division of Vascular and Endovascular Surgery, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Massimo Massetti
- Facoltà di Medicina e Chirurgia, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Department of Cardiovascular Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Antonio Gasbarrini
- Facoltà di Medicina e Chirurgia, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Department of Internal Medicine, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
| | - Andrea Flex
- Cardiovascular Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
- Facoltà di Medicina e Chirurgia, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
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Pérez NV, Ramírez-Sotelo G, Yáñez-Fernández J, Castro-Rodríguez DC. Role of Thermal Process on the Physicochemical and Rheological Properties and Antioxidant Capacity of a New Functional Beverage Based on Coconut Water and Rice Flour. ACS OMEGA 2023; 8:26938-26947. [PMID: 37546632 PMCID: PMC10398844 DOI: 10.1021/acsomega.3c01761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 07/03/2023] [Indexed: 08/08/2023]
Abstract
Different substrates have been implemented for the production of functional beverages. To avoid the presence of pathogens, beverages have been subjected to thermal treatments, such as sterilization or pasteurization, which can interfere with the physicochemical, rheological, functional, and organoleptic properties of the final product. The objective of the present study was to evaluate the effects of heat treatment on the physicochemical properties, such as acidity, pH, total solids, density, total and reducing sugar, as well as the antioxidant activity of a beverage formulated from rice flour (RF) and coconut water (CW). Three beverage formulations were evaluated: A (2% RF; 98% CW), B (5% RF; 95% CW), and C (8% RF; 92% CW), each of which was subjected to two heat treatments: sterilized (121 °C/15 psi/15 min) or pasteurized (60 °C/60 min and subsequently 73 °C/15 s). The heat treatments increased the acidity and reducing sugars but decreased pH, total sugar, and antioxidant activity. As for the rheological properties, the mixtures were pseudoplastic fluid. The physicochemical properties from RF and CW mixtures were dependent on the heat treatment, but these can be introduced as new nondairy substrates for the elaboration of functional beverages to be consumed mainly by those lactose intolerant.
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Affiliation(s)
- Naella
Sandivel Valencia Pérez
- Unidad
Profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Ciudad de Mexico 07738, Mexico
| | - Guadalupe Ramírez-Sotelo
- Unidad
Profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Ciudad de Mexico 07738, Mexico
| | - Jorge Yáñez-Fernández
- Unidad
Profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Ciudad de Mexico 07738, Mexico
| | - Diana C Castro-Rodríguez
- CONACyT-Cátedras,
Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición
SZ, Mexico City 14080, Mexico
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Berlian G, Riani C, Kurniati NF, Rachmawati H. Peptide derived C. striata albumin as a natural angiotensin-converting enzyme inhibitor. Heliyon 2023; 9:e15958. [PMID: 37187901 PMCID: PMC10176048 DOI: 10.1016/j.heliyon.2023.e15958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 04/20/2023] [Accepted: 04/27/2023] [Indexed: 05/17/2023] Open
Abstract
As one of the most popular sources for fish albumin, Channa striata has been considered as a promising substitute for human albumin. However, scientific information regarding its genomic and proteomic is very limited, making its identification rather complicated. In this study, we aimed to isolate, characterize, and examine the bioactivity of protein and peptide derivatives of C. striata albumin. Fractionation of albumin from C. striata extract was conducted using Cohn Process and the yield was evaluated. The peptides were further produced by enzymatic hydrolysis. All these proteins were studied using tricine-SDS PAGE and tested for in vitro ACE inhibition. Dry weights of the Fraction-5, where the albumin was more abundant and purer, was 3.8 ± 2.1%. Based on tricine-SDS PAGE analysis, two bands of protein, e.g., approximately 10 and 13 kDa, were detected with highest intensity found in Fraction-5, which might be albumin of C. striata. An increasing trend of ACE inhibition by the fractions was observed, ranging from 7.09 to 22.99%. The highest ACEI activity was found in peptides from alcalase hydrolysis with molecular size <3 kDa (56.65 ± 2.32%, IC50 36.93 μg/mL). This value was also statistically significant compared with the non-hydrolyzed Fraction-5 and Parental Fraction, which were 23.48 ± 3.11% (P < 0.05) and 13.02 ± 0.68% (P < 0.01), respectively. Taken together, these findings suggest a promising potential of peptide-derived C. striata albumin for natural antihypertensive agents.
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Affiliation(s)
- Guntur Berlian
- Department of Pharmaceutics, School of Pharmacy, Bandung Institute of Technology, Ganesha 10, Bandung 40132, Indonesia
- Mega Medica Pharmaceuticals, Kalideres, Jakarta Barat 11840, Indonesia
| | - Catur Riani
- Department of Pharmaceutics, School of Pharmacy, Bandung Institute of Technology, Ganesha 10, Bandung 40132, Indonesia
| | - Neng Fisheri Kurniati
- Department of Pharmacology-Clinical Pharmacy, School of Pharmacy, Bandung Institute of Technology, Ganesha 10, Bandung 40132, Indonesia
| | - Heni Rachmawati
- Department of Pharmaceutics, School of Pharmacy, Bandung Institute of Technology, Ganesha 10, Bandung 40132, Indonesia
- Research Center for Nanosciences and Nanotechnology, Bandung Institute of Technology, Ganesha 10, Bandung 40132, Indonesia
- Corresponding author. Department of Pharmaceutics, School of Pharmacy, Bandung Institute of Technology, Ganesha 10, Bandung 40132, Indonesia.
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9
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Purcell D, Packer MA, Hayes M. Identification of Bioactive Peptides from a Laminaria digitata Protein Hydrolysate Using In Silico and In Vitro Methods to Identify Angiotensin-1-Converting Enzyme (ACE-1) Inhibitory Peptides. Mar Drugs 2023; 21:90. [PMID: 36827131 PMCID: PMC9967564 DOI: 10.3390/md21020090] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 02/01/2023] Open
Abstract
Bioactive peptides range in size from 2-30 amino acids and may be derived from any protein-containing biomass using hydrolysis, fermentation or high-pressure processing. Pro-peptides or cryptides result in shorter peptide sequences following digestion and may have enhanced bioactivity. Previously, we identified a protein hydrolysate generated from Laminaria digitata that inhibited ACE-1 in vitro and had an ACE-1 IC50 value of 590 µg/mL compared to an ACE-1 IC50 value of 500 µg/mL (~2.3 µM) observed for the anti-hypertensive drug Captopril©. A number of peptide sequences (130 in total) were identified using mass spectrometry from a 3 kDa permeate of this hydrolysate. Predicted bioactivities for these peptides were determined using an in silico strategy previously published by this group utilizing available databases including Expasy peptide cutter, BIOPEP and Peptide Ranker. Peptide sequences YIGNNPAKGGLF and IGNNPAKGGLF had Peptide Ranker scores of 0.81 and 0.80, respectively, and were chemically synthesized. Synthesized peptides were evaluated for ACE-1 inhibitory activity in vitro and were found to inhibit ACE-1 by 80 ± 8% and 91 ± 16%, respectively. The observed ACE-1 IC50 values for IGNNPAKGGLF and YIGNNPAKGGLF were determined as 174.4 µg/mL and 133.1 µg/mL. Both peptides produced sequences following simulated digestion with the potential to inhibit Dipeptidyl peptidase IV (DPP-IV).
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Affiliation(s)
- Diane Purcell
- Food BioSciences Department, Teagasc Food Research Centre, Ashtown, Dublin 15, D15 DY05 Dublin, Ireland
- Cawthron Institute, 98 Halifax Street, Nelson 7010, New Zealand
| | | | - Maria Hayes
- Food BioSciences Department, Teagasc Food Research Centre, Ashtown, Dublin 15, D15 DY05 Dublin, Ireland
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Dual Bioactivity of Angiotensin Converting Enzyme Inhibition and Antioxidant Novel Tripeptides from Sipunculus nudus L. and Their Related Mechanism Analysis for Antihypertention. Int J Pept Res Ther 2022. [DOI: 10.1007/s10989-022-10470-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Purcell D, Packer MA, Hayes M. Angiotensin-I-Converting Enzyme Inhibitory Activity of Protein Hydrolysates Generated from the Macroalga Laminaria digitata (Hudson) JV Lamouroux 1813. Foods 2022; 11:foods11121792. [PMID: 35741988 PMCID: PMC9222848 DOI: 10.3390/foods11121792] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 06/13/2022] [Accepted: 06/14/2022] [Indexed: 02/01/2023] Open
Abstract
Seaweeds have a long history of use as both food and medicine, especially in Asian cultures. Moreover, there is growing interest in the use of seaweed ingredients and bioactive compounds in pharmaceutical and nutraceutical products. One ailment that seaweed bioactive compounds may impact is hypertension caused by the enzyme Angiotensin Converting Enzyme 1 (ACE-1; EC 3.4.15.1), found within the Renin-Angiotensin Aldosterone System (RAAS), which causes vasoconstriction of blood vessels, including veins and arteries. The aim of this paper is to generate bioactive peptide containing protein hydrolysates from the brown seaweed Laminaria digitata (Hudson) JV Lamouroux 1813. Proteins were extracted from this seaweed by disrupting the seaweed cell wall using a combination of carbohydrases and proteolytic enzymes. Bioactive peptide containing permeates were generated from L. digitata protein hydrolysates, and both hydrolysates and permeates were screened for their ability to inhibit the enzyme ACE-1. The protein content of the permeate fractions was found to be 23.87% compared to the untreated seaweed, which contained 15.08% protein using LECO analysis. Hydrolysis and filtration resulted in a “white” protein powder, and the protein content of this powder increased by 9% compared to the whole seaweed. The total amino acid (TAA) content of the L. digitata protein permeate was 53.65 g/100 g of the sample, and contains over 32% essential amino acids (EAA). Furthermore, the L. digitata permeate was found to inhibit the ACE-1 enzyme by 75% when compared to the commercial drug Captopril© when assayed at a concentration of 1 mg/mL. The inhibition of ACE-1 (the IC50 value) of 590 µg/mL for the L. digitata permeate compares well with Captopril©, which had 100% inhibition of ACE-1, with an IC50 value of 500 µg/mL. This study indicates that there is potential to develop protein powders with ACE-1 inhibitory bioactivities from the brown seaweed L. digitata using enzymatic hydrolysis as a cell disruption and protein extraction/hydrolysate generation procedure.
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Affiliation(s)
- Diane Purcell
- Food BioSciences, Teagasc, Ashtown, Dublin 15, D15 DY05 Dublin, Ireland
- Cawthron Institute, 98 Halifax Street, Nelson 7010, New Zealand
| | | | - Maria Hayes
- Food BioSciences, Teagasc, Ashtown, Dublin 15, D15 DY05 Dublin, Ireland
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Mahmoud SA, Taha M, Khaled ESH, Hassan WH, Abo El-Ela FI, Abdel-Khalek AA, Mohamed RA. Experimental and Molecular Modeling Studies on the Complexation of Chromium(III) with the Angiotensin-Converting Enzyme Inhibitor Captopril. ACS OMEGA 2022; 7:15909-15918. [PMID: 35571803 PMCID: PMC9096923 DOI: 10.1021/acsomega.2c00986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 04/15/2022] [Indexed: 06/15/2023]
Abstract
Captopril (CPT) is an inhibitor of angiotensin I converting enzyme, used as a medication for the treatment of people with high blood pressure, renal insufficiency, and cardiovascular diseases. It inhibits the angiogenesis process, vasoconstriction, and tumor metastasis. Some metal-captopril complexes exhibit antimicrobial activities. In the current work, the formation of the CrIII-CPT complex was studied spectrophotometrically and potentiometrically in aqueous solution. Kinetics of CrIII-CPT complex formation was spectrophotometrically studied over the pH range 3.20-4.20, at an ionic strength of 0.3 M at 30-50 °C. CrIII-CPT complex formation was potentiometrically studied at 25 °C, where ligand protonation constants and complexes' overall stability constants were calculated. UV-vis absorption spectra were executed to confirm the complex formation. Density functional theory and molecular dynamics simulation were performed to search the geometries of the CrIII-CPT complex. Atoms in molecules and interaction region indicator calculations are used to investigate intermolecular interactions for the formation of CrIII-CPT complex. The antimicrobial activity of the CPT ligand and CrIII-CPT complex on the prevention and control of environmental pathogenic bacteria, as tested on both Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative bacteria Escherichia coli (E. coli) via agar disc diffusion method, assess the ability to use as an antimicrobial agent. CPT had shown good antimicrobial activity against both types of bacteria, which had increased slightly the zone of inhibition in Cr-CPT that indicates the increased efficacy due to Cr(III) antimicrobial activity via its oxidative damage to the bacterial cell wall. No previous study tested the CPT antimicrobial activity against Gram-positive ones such as S. aureus.
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Affiliation(s)
- Shimaa A Mahmoud
- Chemistry Department, Faculty of Science, Beni-Suef University, 62511 Beni-Suef, Egypt
| | - Mohamed Taha
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, 62511 Beni-Suef, Egypt
| | - Eman S H Khaled
- Chemistry Department, Faculty of Science, Beni-Suef University, 62511 Beni-Suef, Egypt
| | - Walid Hamdy Hassan
- Department of Microbiology Mycology and Immunology, Faculty of Veterinary Medicine, Beni-Suef University, 62511 Beni-Suef, Egypt
| | - Fatma I Abo El-Ela
- Department of Pharmacology, Faculty of Veterinary Medicine, Beni-Suef University, 62511 Beni-Suef, Egypt
| | - Ahmed A Abdel-Khalek
- Chemistry Department, Faculty of Science, Beni-Suef University, 62511 Beni-Suef, Egypt
| | - Reham A Mohamed
- Chemistry Department, Faculty of Science, Beni-Suef University, 62511 Beni-Suef, Egypt
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13
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Kamoun J, Krichen F, Koubaa I, Zouari N, Bougatef A, Abousalham A, Aloulou A. In vitro lipolysis and physicochemical characterization of unconventional star anise oil towards the development of new lipid-based drug delivery systems. Heliyon 2021; 7:e06717. [PMID: 33898835 PMCID: PMC8056425 DOI: 10.1016/j.heliyon.2021.e06717] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/24/2021] [Accepted: 04/01/2021] [Indexed: 11/28/2022] Open
Abstract
Lipid-based drug delivery systems are widely used for enhancing the bioavailability of poorly water-soluble drugs. However, following oral intake, lipid excipients often undergo gastrointestinal lipolysis, which drastically affects drugs solubility and bioavailability. That's why developing new lipid excipients which are resistant to digestion would be of great interest. We studied here the potential role of the unconventional Chinese star anise whole seedpod oil (CSAO) as an alternative multifunctional lipid excipient. Pancreatic lipase-mediated digestion of the extracted crude oil emulsion was assessed in vitro. Pancreatic lipase, being a strict sn-1,3-regioselective lipase, showed a high (16-fold) olive oil to CSAO activity ratio, which could be attributed to fatty acids composition and triglycerides intramolecular structure. For the sake of comparison, the non-regioselective lipase Novozyme® 435 exhibited higher activity than pancreatic lipase on CSAO emulsion, perhaps due to its ability to release fatty acids from the internal sn-2 position of TAGs. Apart counteracting lipolysis, CSAO oil also showed additional biopharmaceutical benefits including moderate antioxidant and antihypertensive activities. Altogether, these findings highlight for the first time the potential use of star anise unconventional whole seedpod oil as a multifunctional lipid excipient for the development of new lipid formulations.
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Affiliation(s)
- Jannet Kamoun
- University of Sfax, National Engineering School of Sfax, Laboratory of Biochemistry and Enzymatic Engineering of Lipases, Sfax 3038, Tunisia.,Univ Lyon, Université Lyon 1, Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires (ICBMS), UMR 5246 CNRS, Génie Enzymatique, Membranes Biomimétiques et Assemblages Supramoléculaires (GEMBAS), Bât Raulin, 43 Bd du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Fatma Krichen
- University of Sfax, National Engineering School of Sfax, Laboratory of Plant Improvement and Valorization of Agro-resources, Sfax 3038, Tunisia
| | - Imed Koubaa
- University of Sfax, Faculty of Science of Sfax, Laboratory of Organic Chemistry, Sfax 3038, Tunisia
| | - Nacim Zouari
- University of Gabes, Higher Institute of Applied Biology of Medenine, Medenine 4119, Tunisia
| | - Ali Bougatef
- University of Sfax, National Engineering School of Sfax, Laboratory of Plant Improvement and Valorization of Agro-resources, Sfax 3038, Tunisia
| | - Abdelkarim Abousalham
- Univ Lyon, Université Lyon 1, Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires (ICBMS), UMR 5246 CNRS, Génie Enzymatique, Membranes Biomimétiques et Assemblages Supramoléculaires (GEMBAS), Bât Raulin, 43 Bd du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Ahmed Aloulou
- University of Sfax, National Engineering School of Sfax, Laboratory of Biochemistry and Enzymatic Engineering of Lipases, Sfax 3038, Tunisia
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A Role of Inflammation and Immunity in Essential Hypertension-Modeled and Analyzed Using Petri Nets. Int J Mol Sci 2020; 21:ijms21093348. [PMID: 32397357 PMCID: PMC7247551 DOI: 10.3390/ijms21093348] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/03/2020] [Accepted: 05/05/2020] [Indexed: 02/07/2023] Open
Abstract
Recent studies have shown that the innate and adaptive immune system, together with low-grade inflammation, may play an important role in essential hypertension. In this work, to verify the importance of selected factors for the development of essential hypertension, we created a Petri net-based model and analyzed it. The analysis was based mainly on t-invariants, knockouts of selected fragments of the net and its simulations. The blockade of the renin-angiotensin (RAA) system revealed that the most significant effect on the emergence of essential hypertension has RAA activation. This blockade affects: (1) the formation of angiotensin II, (2) inflammatory process (by influencing C-reactive protein (CRP)), (3) the initiation of blood coagulation, (4) bradykinin generation via the kallikrein-kinin system, (5) activation of lymphocytes in hypertension, (6) the participation of TNF alpha in the activation of the acute phase response, and (7) activation of NADPH oxidase-a key enzyme of oxidative stress. On the other hand, we found that the blockade of the activation of the RAA system may not eliminate hypertension that can occur due to disturbances associated with the osmotically independent binding of Na in the interstitium. Moreover, we revealed that inflammation alone is not enough to trigger primary hypertension, but it can coexist with it. We believe that our research may contribute to a better understanding of the pathology of hypertension. It can help identify potential subprocesses, which blocking will allow better control of essential hypertension.
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Nuchprapha A, Paisansak S, Sangtanoo P, Srimongkol P, Saisavoey T, Reamtong O, Choowongkomon K, Karnchanatat A. Two novel ACE inhibitory peptides isolated from longan seeds: purification, inhibitory kinetics and mechanisms. RSC Adv 2020; 10:12711-12720. [PMID: 35492113 PMCID: PMC9051311 DOI: 10.1039/d0ra00093k] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 03/23/2020] [Indexed: 01/11/2023] Open
Abstract
Angiotensin converting enzyme (ACE) inhibition offers a useful means of managing hypertension, because ACE inhibitors (ACEIs) are known to serve as agents with antihypertensive properties in addition to generating positive metabolic and cardioprotective outcomes. However, current ACEIs are linked to adverse consequences, and so there is a requirement for effective but safer compounds, which might be achieved through chemical synthesis or the isolation of naturally obtained bioactive molecules. Protein hydrolysates with ACEI activity can be produced by the combined pepsin and pancreatin proteolysis (to mimic gastrointestinal digestion) of longan seed protein. This study examined longan seed protein hydrolysates, obtained from a sequential 3 h digestion with pepsin and then pancreatin. The resulting hydrolysate underwent sequential ultrafiltration membrane fractionation with a 10, 5, and 3 kDa molecular weight cut-off (MWCO). The permeate derived from the <3 kDa MWCO demonstrated the highest ACEI activity. This permeate subsequently underwent separation by reverse-phase high performance liquid chromatography to give the main fractions on the basis of differing elution times. The ACEI IC50 values for these fractions were then identified. Quadrupole time-of-flight tandem mass spectrometry was employed to determine the peptide mass for the major peak (F 5), which was shown to be Glu-Thr-Ser-Gly-Met-Lys-Pro-Thr-Glu-Leu (ETSGMKPTEL) and Ile-Ser-Ser-Met-Gly-Ile-Leu-Val-Cys-Leu (ISSMGILVCL). These two peptides were stable over a temperature and pH range of -20 to 90 °C and 2-12, respectively, for 60 min. From the Lineweaver-Burk plot, both peptides inhibited ACE non-competitively. Molecular docking simulation of the peptides with ACE supported the formation of hydrogen bonds by the peptides with the ACE active pockets. This research indicates that it may be possible to use both of these peptides or longan seed protein hydrolysates in order to create ingredients for functional foods, or to produce pharmaceutical products, capable of lowering hypertension.
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Affiliation(s)
- Atthasith Nuchprapha
- Program in Biotechnology, Faculty of Science, Chulalongkorn University 254 Phayathai Road, Pathumwan Bangkok 10330 Thailand
| | - Supawee Paisansak
- Program in Biotechnology, Faculty of Science, Chulalongkorn University 254 Phayathai Road, Pathumwan Bangkok 10330 Thailand
| | - Papassara Sangtanoo
- Research Unit in Bioconversion/Bioseparation for Value-Added Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University 254 Phayathai Road, Pathumwan Bangkok 10330 Thailand
| | - Piroonporn Srimongkol
- Research Unit in Bioconversion/Bioseparation for Value-Added Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University 254 Phayathai Road, Pathumwan Bangkok 10330 Thailand
| | - Tanatorn Saisavoey
- Research Unit in Bioconversion/Bioseparation for Value-Added Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University 254 Phayathai Road, Pathumwan Bangkok 10330 Thailand
| | - Onrapak Reamtong
- Department of Molecular Tropical Medicine and Genetics, Faculty of Tropical Medicine, Mahidol University 420/6 Ratchawithi Road, Ratchathewi Bangkok 10400 Thailand
| | | | - Aphichart Karnchanatat
- Research Unit in Bioconversion/Bioseparation for Value-Added Chemical Production, Institute of Biotechnology and Genetic Engineering, Chulalongkorn University 254 Phayathai Road, Pathumwan Bangkok 10330 Thailand
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16
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Đorđević IS, Popadić M, Sarvan M, Petković-Benazzouz M, Janjić GV. Supramolecular insight into the substitution of sulfur by selenium, based on crystal structures, quantum-chemical calculations and biosystem recognition. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2020; 76:122-136. [PMID: 32831247 DOI: 10.1107/s2052520619016287] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 12/03/2019] [Indexed: 06/11/2023]
Abstract
Statistical analysis of data from crystal structures extracted from the Cambridge Structural Database (CSD) has shown that S and Se atoms display a similar tendency towards specific types of interaction if they are part of a fragment that corresponds to the side chains of cysteine (Cys), methionine (Met) selenocysteine (Sec) and selenomethionine (Mse). The most numerous are structures with C-H...Se and C-H...S interactions (∼80%), notably less numerous are structures with Se...Se and S...S interactions (∼5%), and Se...π and S...π interactions are the least numerous. The results of quantum-chemical calculations have indicated that C-H...Se (∼-0.8 kcal mol-1) and C-H...S interactions are weaker than the most stable parallel interaction (∼-3.3 kcal mol-1) and electrostatic interactions of σ/π type (∼-2.6 kcal mol-1). Their significant presence can be explained by the abundance of CH groups compared with the numbers of Se and S atoms in the crystal structures, and also by the influence of substituents bonded to the Se or S atom that further reduce their possibilities for interacting with species from the environment. This can also offer an explanation as to why O-H...Se (∼-4.4 kcal mol-1) and N-H...Se interactions (∼-2.2 kcal mol-1) are less numerous. Docking studies revealed that S and Se rarely participate in interactions with the amino acid residues of target enzymes, mostly because those residues preferentially interact with the substituents bonded to Se and S. The differences between Se and S ligands in the number and positions of their binding sites are more pronounced if the substituents are polar and if there are more Se/S atoms in the ligand.
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Affiliation(s)
- Ivana S Đorđević
- SI Institute of Chemistry, Technology and Metallurgy, National Institute, University of Belgrade, Njegoševa 12, Belgrade, Serbia
| | - Marko Popadić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, Serbia
| | - Mirjana Sarvan
- Faculty of Physics, University of Belgrade, Studentski trg 12, Belgrade, Serbia
| | | | - Goran V Janjić
- SI Institute of Chemistry, Technology and Metallurgy, National Institute, University of Belgrade, Njegoševa 12, Belgrade, Serbia
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17
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Zheng Y, Wang X, Zhuang Y, Li Y, Tian H, Shi P, Li G. Isolation of Novel ACE-Inhibitory and Antioxidant Peptides from Quinoa Bran Albumin Assisted with an In Silico Approach: Characterization, In Vivo Antihypertension, and Molecular Docking. Molecules 2019; 24:molecules24244562. [PMID: 31842519 PMCID: PMC6943578 DOI: 10.3390/molecules24244562] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/05/2019] [Accepted: 12/10/2019] [Indexed: 11/16/2022] Open
Abstract
Albumin is the major fraction of quinoa protein that is characterized as having high nutritional value. However, until now, scant information is available on the bioactivity of quinoa albumin or its hydrolysates. To promote its usage, we extracted albumin in this study from quinoa bran assisted with cellulase and hemicellulose, and hydrolyzed it by alcalase and trypsin to produce bioactive peptides. The hydrolysates (QBAH) were purified by gel filtration and reversed-phase high-performance liquid chromatography (RP-HPLC), followed by identification using liquid chromatography–mass spectrometry (LC-MS/MS). Furthermore, based on in silico analysis, one angiotensin-I converting enzyme (ACE)-inhibitory and antioxidant peptide, RGQVIYVL (946.6 Da), and two antioxidant peptides, ASPKPSSA (743.8 Da), and QFLLAGR (803.5 Da), from QBAH were synthesized. RGQVIYVL showed a high ACE-inhibitory activity (IC50 = 38.16 μM) with competitive mode of inhibition, and showed significant antihypertensive effect in spontaneously hypertensive rats at a concentration of 100–150 mg/kg body weight (bw). Molecular docking simulation showed that it could interact with the active ACE site via hydrogen bonds with high binding power. Moreover, RGQVIYVL, ASPKPSSA, and QFLLAGR all demonstrated high ·OH scavenging activity (IC50 = 61.69–117.46 μM), ABTS+ scavenging activity (58.29–74.28%) and Fe2+ chelating ability (32.54–82.48% at 0.5 mg/mL). They could also retain activity after gastrointestinal enzyme digestion. These results indicate that quinoa albumin is a potential source of bioactive peptides possessing antioxidant and ACE-inhibitory activities.
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Affiliation(s)
- Yajun Zheng
- Food Science Institute, Shanxi Normal University, Linfen 041004, China; (X.W.); (H.T.); (G.L.)
- Correspondence: ; Tel.: +86-139-765-63642
| | - Xian Wang
- Food Science Institute, Shanxi Normal University, Linfen 041004, China; (X.W.); (H.T.); (G.L.)
| | - Yongliang Zhuang
- Yunnan Institute of Food Safety, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Yan Li
- Food Science Institute, Shanxi Normal University, Linfen 041004, China; (X.W.); (H.T.); (G.L.)
| | - Hailong Tian
- Food Science Institute, Shanxi Normal University, Linfen 041004, China; (X.W.); (H.T.); (G.L.)
| | - Panqi Shi
- Food Science Institute, Shanxi Normal University, Linfen 041004, China; (X.W.); (H.T.); (G.L.)
| | - Guifeng Li
- Food Science Institute, Shanxi Normal University, Linfen 041004, China; (X.W.); (H.T.); (G.L.)
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18
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Abachi S, Bazinet L, Beaulieu L. Antihypertensive and Angiotensin-I-Converting Enzyme (ACE)-Inhibitory Peptides from Fish as Potential Cardioprotective Compounds. Mar Drugs 2019; 17:E613. [PMID: 31671730 PMCID: PMC6891548 DOI: 10.3390/md17110613] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/21/2019] [Accepted: 10/23/2019] [Indexed: 02/07/2023] Open
Abstract
The term metabolic/cardiometabolic/insulin resistance syndrome could generally be defined as the co-occurrence of several risk factors inclusive of systemic arterial hypertension. Not only that organizations, such as the world health organization (WHO) have identified high blood pressure as one of the main risk factors of the cardiometabolic syndrome, but there is also a link between the occurrence of insulin resistance/impaired glucose tolerance and hypertension that would consequently lead to type-2 diabetes (T2D). Hypertension is medicated by various classes of synthetic drugs; however, severe or mild adverse effects have been repeatedly reported. To avoid and reduce these adverse effects, natural alternatives, such as bioactive peptides derived from different sources have drawn the attention of researchers. Among all types of biologically active peptides inclusive of marine-derived ones, this paper's focus would solely be on fish and fishery by-processes' extracted peptides and products. Isolation and fractionation processes of these products alongside their structural, compositional and digestion stability characteristics have likewise been briefly discussed to better address the structure-activity relationship, expanding the reader's knowledge on research and discovery trend of fish antihypertensive biopeptides. Furthermore, drug-likeness of selected biopeptides was predicted by Lipinski's rules to differentiate a drug-like biopeptide from nondrug-like one.
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Affiliation(s)
- Soheila Abachi
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada.
- Department of Food Science, Faculty of Agricultural and Food Sciences, Université Laval, Quebec, QC G1V 0A6, Canada.
| | - Laurent Bazinet
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada.
- Department of Food Science, Faculty of Agricultural and Food Sciences, Université Laval, Quebec, QC G1V 0A6, Canada.
| | - Lucie Beaulieu
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC G1V 0A6, Canada.
- Department of Food Science, Faculty of Agricultural and Food Sciences, Université Laval, Quebec, QC G1V 0A6, Canada.
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Schué E, Kopyshev A, Lutz J, Börner HG. Molecular Bottle Brushes with Positioned Selenols: Extending the Toolbox of Oxidative Single Polymer Chain Folding with Conformation Analysis by Atomic Force Microscopy. JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1002/pola.29496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Emmanuelle Schué
- Laboratory for Organic Synthesis of Functional Systems, Department of ChemistryHumboldt‐Universität zu Berlin Brook‐Taylor‐Strasse 2 12489 Berlin Germany
| | - Alexey Kopyshev
- Institute of Physics and AstronomyUniversity of Potsdam 14476 Potsdam Germany
| | - Jean‐François Lutz
- Universiteć de Strasbourg, CNRS, Institut Charles Sadron UPR22, 23 rue du Loess Strasbourg 67034 Cedex 2 France
| | - Hans G. Börner
- Laboratory for Organic Synthesis of Functional Systems, Department of ChemistryHumboldt‐Universität zu Berlin Brook‐Taylor‐Strasse 2 12489 Berlin Germany
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20
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Synthesis of selenopeptides: an alternative way of incorporating selenocystine. Amino Acids 2019; 51:661-667. [DOI: 10.1007/s00726-019-02698-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 01/11/2019] [Indexed: 12/19/2022]
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21
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Zheng Y, Li Y, Li G. ACE-inhibitory and antioxidant peptides from coconut cake albumin hydrolysates: purification, identification and synthesis. RSC Adv 2019; 9:5925-5936. [PMID: 35517251 PMCID: PMC9060905 DOI: 10.1039/c8ra10269d] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 02/11/2019] [Indexed: 11/24/2022] Open
Abstract
Coconut cake albumin was hydrolysed by sequential digestion with alcalase, flavourzyme, pepsin and trypsin to purify bioactive peptides with ACE-inhibitory and antioxidant activities. Following fractionation with sequential ultrafiltration, Sephadex gel chromatography and RP-HPLC, three novel peptides KAQYPYV, KIIIYN and KILIYG were identified. KAQYPYV, KIIIYN and KILIYG provided an IC50 value of 37.06 μM, 58.72 μM and 53.31 μM on ACE-inhibitory activity, respectively. For hydroxyl radical scavenging activity, KAQYPYV, KIIIYN and KILIYG demonstrated an IC50 value of 70.84 μM, 77.62 μM and 95.23 μM, respectively. All the three peptides exhibited a mixed modality of noncompetitive and uncompetitive inhibition on ACE and KAQYPYV showed good stability against gastrointestinal enzymes digestion. Moreover, these peptides could effectively lower intracellular endothelin-1 content without significant cytotoxicity, and protected vascular endothelial cells from reactive oxygen species mediated damage. Furthermore, KAQYPYV, KIIIYN and KILIYG also demonstrated high ion chelating ability (62.13% ± 4.21%, 64.66% ± 5.51% and 69.82% ± 7.24% at 0.1 mg mL−1, respectively) and considerable superoxide radical scavenging activity (39.30% ± 2.72%, 46.79% ± 1.70% and 51.16% ± 3.23% at 1.0 mg mL−1, respectively). These results indicate that coconut cake albumin is a potential source of bioactive peptides possessing ACE-inhibitory and antioxidant activities. Three ACE-inhibitory and antioxidant peptides were identified from enzymatic hydrolysates of coconut cake albumin in the current study.![]()
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Affiliation(s)
- Yajun Zheng
- College of Food Science
- Shanxi Normal University
- Linfen
- China
- College of Life Sciences and Food Engineering of Hebei Engineering University
| | - Yan Li
- College of Food Science
- Shanxi Normal University
- Linfen
- China
- College of Life Sciences and Food Engineering of Hebei Engineering University
| | - Guifeng Li
- College of Food Science
- Shanxi Normal University
- Linfen
- China
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22
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Purification and Identification of Angiotensin I-Converting Enzyme Inhibitory Peptides and the Antihypertensive Effect of Chlorella sorokiniana Protein Hydrolysates. Nutrients 2018; 10:nu10101397. [PMID: 30275420 PMCID: PMC6213796 DOI: 10.3390/nu10101397] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 09/13/2018] [Accepted: 09/28/2018] [Indexed: 11/23/2022] Open
Abstract
Hot water was used to obtain Chlorella sorokiniana hot water extract (HWE). Subsequently, this byproduct was freeze-dried, hydrolysed at 50 °C using Protease N to obtain C. sorokiniana protein hydrolysates (PN-1), and then digested with a gastrointestinal enzyme (PN-1G). The inhibitory effects of the HWE and hydrolysates against angiotensin I-converting enzyme (ACE) were investigated. The soluble protein and peptide contents were 379.9 and 179.7 mg/g, respectively, for HWE and 574.8 and 332.8 mg/g, respectively, for PN-1. The IC50 values of the HWE, PN-1, and PN-1G on ACE were 1.070, 0.035, and 0.044 mg/mL, respectively. PN-1G was separated into seven fractions through size exclusion chromatography. The sixth fraction of the hydrolysate had a molecular weight between 270 and 340 Da, and the lowest IC50 value on ACE was 0.015 mg/mL. The amino acid sequences of the ACE-inhibitory peptides were Trp-Val, Val-Trp, Ile-Trp, and Leu-Trp, of which the IC50 values were 307.61, 0.58, 0.50, and 1.11 µΜ, respectively. Systolic blood pressure and diastolic blood pressure were reduced 20 and 21 mm Hg, respectively, in spontaneously hypertensive rats after 6 h of oral administration with a dose of 171.4 mg PN-1 powder/kg body weight.
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Liu J, Zheng F, Cheng R, Li S, Rozovsky S, Wang Q, Wang L. Site-Specific Incorporation of Selenocysteine Using an Expanded Genetic Code and Palladium-Mediated Chemical Deprotection. J Am Chem Soc 2018; 140:8807-8816. [PMID: 29984990 PMCID: PMC6082430 DOI: 10.1021/jacs.8b04603] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Selenoproteins containing the 21st amino acid selenocysteine (Sec) exist in all three kingdoms of life and play essential roles in human health and development. The distinct low p Ka, high reactivity, and redox property of Sec also afford unique routes to protein modification and engineering. However, natural Sec incorporation requires idiosyncratic translational machineries that are dedicated to Sec and species-dependent, which makes it challenging to recombinantly prepare selenoproteins with high Sec specificity. As a consequence, the function of half of human selenoproteins remains unclear, and Sec-based protein manipulation has been greatly hampered. Here we report a new general method enabling the site-specific incorporation of Sec into proteins in E. coli. An orthogonal tRNAPyl-ASecRS was evolved to specifically incorporate Se-allyl selenocysteine (ASec) in response to the amber codon, and the incorporated ASec was converted to Sec in high efficiency through palladium-mediated cleavage under mild conditions compatible with proteins and cells. This approach completely obviates the natural Sec-dedicated factors, thus allowing various selenoproteins, regardless of Sec position and species source, to be prepared with high Sec specificity and enzyme activity, as shown by the preparation of human thioredoxin and glutathione peroxidase 1. Sec-selective labeling in the presence of Cys was also demonstrated on the surface of live E. coli cells. The tRNAPyl-ASecRS pair was further used in mammalian cells to incorporate ASec, which was converted into Sec by palladium catalyst in cellulo. This robust and versatile method should greatly facilitate the study of diverse natural selenoproteins and the engineering of proteins in general via site-specific introduction of Sec.
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Affiliation(s)
- Jun Liu
- University of California, San Francisco, Department of Pharmaceutical Chemistry, 555 Mission Bay Blvd. South, San Francisco, CA, 94158
| | - Feng Zheng
- Hangzhou Research Institute of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, China, 310018
| | - Rujin Cheng
- University of Delaware, Department of Chemistry and Biochemistry, Newark, DE, 19716
| | - Shanshan Li
- University of California, San Francisco, Department of Pharmaceutical Chemistry, 555 Mission Bay Blvd. South, San Francisco, CA, 94158
- Department of Chemistry and Center for Therapeutics and Diagnostics, Georgia State University, Atlanta, Georgia 30302, United States
| | - Sharon Rozovsky
- University of Delaware, Department of Chemistry and Biochemistry, Newark, DE, 19716
| | - Qian Wang
- Hangzhou Research Institute of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, China, 310018
| | - Lei Wang
- University of California, San Francisco, Department of Pharmaceutical Chemistry, 555 Mission Bay Blvd. South, San Francisco, CA, 94158
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Li Y, Zheng Y, Zhang Y, Xu J, Gao G. Antioxidant Activity of Coconut (Cocos nucifera L.) Protein Fractions. Molecules 2018; 23:E707. [PMID: 29558429 PMCID: PMC6017440 DOI: 10.3390/molecules23030707] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 03/11/2018] [Accepted: 03/18/2018] [Indexed: 11/16/2022] Open
Abstract
Coconut cake is an abundant and good potential edible protein source. However, until now it has not been extensively used in the food industry. To promote its usage, the characterization, nutrition value and antioxidant activity of coconut cake protein fractions (albumin, globulin, prolamine, glutelin-1 and glutelin-2) were studied. Results revealed that all the albumin, globulin, glutelin-1 and glutelin-2 fractions showed a high nutrition value. The prolamine, glutelin-1 and glutelin-2 all exhibited good radical scavenging activity and reducing power, and the globulin and prolamine showed high ion chelating ability (89.14-80.38%). Moreover, all the fractions except glutelin-2 could effectively protect DNA against oxidative damage. Several peptides containing five to eight amino acids with antioxidant activity were also identified by LC-MS/MS from the globulin and glutelin-2 fractions. The results demonstrated that the coconut cake protein fractions have potential usages in functional foods.
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Affiliation(s)
- Yan Li
- Food Science Institute of Shanxi Normal University, Linfen 041004, China.
| | - Yajun Zheng
- Food Science Institute of Shanxi Normal University, Linfen 041004, China.
| | - Yufeng Zhang
- Coconut Research Institute of Chinese Academy of Tropical Agriculture Sciences, Wenchang 571339, China.
| | - Jianguo Xu
- Food Science Institute of Shanxi Normal University, Linfen 041004, China.
| | - Gang Gao
- Food Science Institute of Shanxi Normal University, Linfen 041004, China.
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25
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Zheng Y, Li Y, Zhang Y, Ruan X, Zhang R. Purification, characterization, synthesis, in vitro ACE inhibition and in vivo antihypertensive activity of bioactive peptides derived from oil palm kernel glutelin-2 hydrolysates. J Funct Foods 2017. [DOI: 10.1016/j.jff.2016.11.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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26
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Zheng Y, Li Y, Zhang Y. Purification and identification of antioxidative peptides of palm kernel expeller glutelin-1 hydrolysates. RSC Adv 2017. [DOI: 10.1039/c7ra11657h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Four antioxidant peptides were identified from enzymatic hydrolysates of palm kernel expeller glutelin-1 in the current study.
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Affiliation(s)
- Yajun Zheng
- Institute of Food Science of Shanxi Normal University
- Linfen
- China
| | - Yan Li
- Institute of Food Science of Shanxi Normal University
- Linfen
- China
| | - Yufeng Zhang
- Coconut Research Institute of Chinese Academy of Tropical Agriculture Sciences
- Wenchang
- China
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27
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Momin MI, Bahadur I, Ebenso EE, Islam MS, Olasunkanmi LO, Ramjugernath D, Koorbanally NA. Antioxidant properties, computational studies and corrosion inhibition potential of 3-hydroxy-1-(2-hydroxyphenyl)-5-(phenyl)-2,4-pentadien-1-one analogues. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.08.107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Li Y, Zheng Y, Zhang Y, Liu L, Zhao S. Purification, characterization, synthesis, in vivo and in vitro antihypertensive activity of bioactive peptides derived from coconut (Cocos nucifera L.) cake globulin hydrolysates. RSC Adv 2016. [DOI: 10.1039/c6ra19971b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This paper reports the purification, characterization,in vivoandin vitroantihypertensive activity of two novel peptides derived from coconut cake globulin hydrolysates.
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Affiliation(s)
- Yan Li
- Coconut Research Institute of Chinese Tropical Agriculture Academic
- Wenchang
- China
| | - Yajun Zheng
- Coconut Research Institute of Chinese Tropical Agriculture Academic
- Wenchang
- China
| | - Yufeng Zhang
- Coconut Research Institute of Chinese Tropical Agriculture Academic
- Wenchang
- China
| | - Liyun Liu
- Coconut Research Institute of Chinese Tropical Agriculture Academic
- Wenchang
- China
| | - Songlin Zhao
- Coconut Research Institute of Chinese Tropical Agriculture Academic
- Wenchang
- China
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29
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Kumar H, Devaraji V, Joshi R, Jadhao M, Ahirkar P, Prasath R, Bhavana P, Ghosh SK. Antihypertensive activity of a quinoline appended chalcone derivative and its site specific binding interaction with a relevant target carrier protein. RSC Adv 2015. [DOI: 10.1039/c5ra08778c] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The usefulness of heterocyclic chalcone derivative as a therapeutic target in controlling hypertension and its site specific binding interaction with model transport protein to get a clear picture about its delivery mechanism.
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Affiliation(s)
- Himank Kumar
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
| | - Vinod Devaraji
- Department of Pharmaceutical Chemistry
- College of Pharmacy
- Madras Medical College
- Chennai
- India
| | - Ritika Joshi
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
| | - Manojkumar Jadhao
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
| | - Piyush Ahirkar
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
| | - R. Prasath
- Department of Chemistry
- BITS-Pilani
- Zuarinagar
- India
| | - P. Bhavana
- Department of Chemistry
- BITS-Pilani
- Zuarinagar
- India
| | - Sujit Kumar Ghosh
- Department of Chemistry
- Visvesvaraya National Institute of Technology
- Nagpur
- India
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30
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The Renin-Angiotensin-aldosterone system in vascular inflammation and remodeling. Int J Inflam 2014; 2014:689360. [PMID: 24804145 PMCID: PMC3997861 DOI: 10.1155/2014/689360] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 02/28/2014] [Accepted: 03/03/2014] [Indexed: 12/31/2022] Open
Abstract
The RAAS through its physiological effectors plays a key role in promoting and maintaining inflammation. Inflammation is an important mechanism in the development and progression of CVD such as hypertension and atherosclerosis. In addition to its main role in regulating blood pressure and its role in hypertension, RAAS has proinflammatory and profibrotic effects at cellular and molecular levels. Blocking RAAS provides beneficial effects for the treatment of cardiovascular and renal diseases. Evidence shows that inhibition of RAAS positively influences vascular remodeling thus improving CVD outcomes. The beneficial vascular effects of RAAS inhibition are likely due to decreasing vascular inflammation, oxidative stress, endothelial dysfunction, and positive effects on regeneration of endothelial progenitor cells. Inflammatory factors such as ICAM-1, VCAM-1, TNFα, IL-6, and CRP have key roles in mediating vascular inflammation and blocking RAAS negatively modulates the levels of these inflammatory molecules. Some of these inflammatory markers are clinically associated with CVD events. More studies are required to establish long-term effects of RAAS inhibition on vascular inflammation, vascular cells regeneration, and CVD clinical outcomes. This review presents important information on RAAS's role on vascular inflammation, vascular cells responses to RAAS, and inhibition of RAAS signaling in the context of vascular inflammation, vascular remodeling, and vascular inflammation-associated CVD. Nevertheless, the review also equates the need to rethink and rediscover new RAAS inhibitors.
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31
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Huo S, Dong J, Song C, Xu J, Shen S, Ren Y, Shi T. Characterization of the reaction products, kinetics and mechanism of oxidation of the drug captopril by platinum(iv) complexes. RSC Adv 2014. [DOI: 10.1039/c3ra45020a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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32
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Yoshimoto N, Itoh T, Inaba Y, Ishii H, Yamamoto K. Structural Basis for Inhibition of Carboxypeptidase B by Selenium-Containing Inhibitor: Selenium Coordinates to Zinc in Enzyme. J Med Chem 2013; 56:7527-35. [DOI: 10.1021/jm400816v] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nobuko Yoshimoto
- High
Technology Research Center, ‡Laboratory of Drug Design and Medicinal Chemistry and §Laboratory of
Molecular and Cellular Pathophysiology, Showa Pharmaceutical University, 3-3165
Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Toshimasa Itoh
- High
Technology Research Center, ‡Laboratory of Drug Design and Medicinal Chemistry and §Laboratory of
Molecular and Cellular Pathophysiology, Showa Pharmaceutical University, 3-3165
Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Yuka Inaba
- High
Technology Research Center, ‡Laboratory of Drug Design and Medicinal Chemistry and §Laboratory of
Molecular and Cellular Pathophysiology, Showa Pharmaceutical University, 3-3165
Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Hidemi Ishii
- High
Technology Research Center, ‡Laboratory of Drug Design and Medicinal Chemistry and §Laboratory of
Molecular and Cellular Pathophysiology, Showa Pharmaceutical University, 3-3165
Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
| | - Keiko Yamamoto
- High
Technology Research Center, ‡Laboratory of Drug Design and Medicinal Chemistry and §Laboratory of
Molecular and Cellular Pathophysiology, Showa Pharmaceutical University, 3-3165
Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan
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33
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Gupta D, Georgiopoulou VV, Kalogeropoulos AP, Marti CN, Yancy CW, Gheorghiade M, Fonarow GC, Konstam MA, Butler J. Nitrate therapy for heart failure: benefits and strategies to overcome tolerance. JACC-HEART FAILURE 2013; 1:183-91. [PMID: 24621868 DOI: 10.1016/j.jchf.2013.03.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 03/04/2013] [Indexed: 11/18/2022]
Abstract
Combination therapy with hydralazine and nitrates can improve outcomes in patients with heart failure and low ejection fraction. However, this combination is underused in clinical practice for several reasons, including side effects related to hydralazine and polypharmacy. Some of the benefits seen with hydralazine, including afterload reduction and attenuation of nitrate tolerance, have also been observed with angiotensin-converting enzyme inhibitors. Demonstrating similar clinical benefits with nitrates plus angiotensin-converting enzyme inhibitor therapy alone, in the absence of hydralazine, may represent an opportunity to improve heart failure care by increasing the use of nitrates. In this paper, we summarize data that support studying such an approach.
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Affiliation(s)
- Divya Gupta
- Division of Cardiology, Emory University, Atlanta, Georgia
| | | | | | | | - Clyde W Yancy
- Division of Cardiology, Northwestern University, Chicago, Illinois
| | | | - Gregg C Fonarow
- Division of Cardiology, University of California, Los Angeles, California
| | | | - Javed Butler
- Division of Cardiology, Emory University, Atlanta, Georgia.
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34
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Affeldt RF, Braga HC, Baldassari LL, Lüdtke DS. Synthesis of selenium-linked neoglycoconjugates and pseudodisaccharides. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.08.075] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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Affiliation(s)
- Dilip Gude
- Department of Internal Medicine, AMC, 3rd Floor, Medwin Hospital, Chirag Ali lane, Nampally, Hyderabad, Andhra Pradesh, India
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36
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An active peptide purified from gastrointestinal enzyme hydrolysate of Pacific cod skin gelatin attenuates angiotensin-1 converting enzyme (ACE) activity and cellular oxidative stress. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.12.020] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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37
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Bhuyan BJ, Mugesh G. Antioxidant activity of peptide-based angiotensin converting enzyme inhibitors. Org Biomol Chem 2012; 10:2237-47. [PMID: 22307539 DOI: 10.1039/c2ob06533a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Angiotensin converting enzyme (ACE) inhibitors are important for the treatment of hypertension as they can decrease the formation of vasopressor hormone angiotensin II (Ang II) and elevate the levels of vasodilating hormone bradykinin. It is observed that bradykinin contains a Ser-Pro-Phe motif near the site of hydrolysis. The selenium analogues of captopril represent a novel class of ACE inhibitors as they also exhibit significant antioxidant activity. In this study, several di- and tripeptides containing selenocysteine and cysteine residues at the N-terminal were synthesized. Hydrolysis of angiotensin I (Ang I) to Ang II by ACE was studied in the presence of these peptides. It is observed that the introduction of L-Phe to Sec-Pro and Cys-Pro peptides significantly increases the ACE inhibitory activity. On the other hand, the introduction of L-Val or L-Ala decreases the inhibitory potency of the parent compounds. The presence of an L-Pro moiety in captopril analogues appears to be important for ACE inhibition as the replacement of L-Pro by L-piperidine 2-carboxylic acid decreases the ACE inhibition. The synthetic peptides were also tested for their ability to scavenge peroxynitrite (PN) and to exhibit glutathione peroxidase (GPx)-like activity. All the selenium-containing peptides exhibited good PN-scavenging and GPx activities.
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Affiliation(s)
- Bhaskar J Bhuyan
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
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38
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Tiekink ERT. Therapeutic potential of selenium and tellurium compounds: opportunities yet unrealised. Dalton Trans 2012; 41:6390-5. [PMID: 22252404 DOI: 10.1039/c2dt12225a] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite being disparaged for their malodorous and toxic demeanour, compounds of selenium, a bio-essential element, and tellurium, offer possibilities as therapeutic agents. Herein, their potential use as drugs, for example, as anti-viral, anti-microbial, anti-inflammatory agents, etc., will be surveyed along with a summary of the established biological functions of selenium. The natural biological functions of tellurium remain to be discovered.
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Affiliation(s)
- Edward R T Tiekink
- Department of Chemistry, University of Malaya, 50603, Kuala, Lumpur, Malaysia.
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39
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Akif M, Masuyer G, Schwager SLU, Bhuyan BJ, Mugesh G, Isaac RE, Sturrock ED, Acharya KR. Structural characterization of angiotensin I-converting enzyme in complex with a selenium analogue of captopril. FEBS J 2011; 278:3644-50. [PMID: 21810173 PMCID: PMC3328747 DOI: 10.1111/j.1742-4658.2011.08276.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Human somatic angiotensin I-converting enzyme (ACE), a zinc-dependent dipeptidyl carboxypeptidase, is central to the regulation of the renin–angiotensin aldosterone system. It is a well-known target for combating hypertension and related cardiovascular diseases. In a recent study by Bhuyan and Mugesh [Org. Biomol. Chem. (2011) 9, 1356–1365], it was shown that the selenium analogues of captopril (a well-known clinical inhibitor of ACE) not only inhibit ACE, but also protect against peroxynitrite-mediated nitration of peptides and proteins. Here, we report the crystal structures of human testis ACE (tACE) and a homologue of ACE, known as AnCE, from Drosophila melanogaster in complex with the most promising selenium analogue of captopril (SeCap) determined at 2.4 and 2.35 Å resolution, respectively. The inhibitor binds at the active site of tACE and AnCE in an analogous fashion to that observed for captopril and provide the first examples of a protein–selenolate interaction. These new structures of tACE–SeCap and AnCE–SeCap inhibitor complexes presented here provide important information for further exploration of zinc coordinating selenium-based ACE inhibitor pharmacophores with significant antioxidant activity.
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Affiliation(s)
- Mohd Akif
- Department of Biology and Biochemistry, University of Bath, Bath, UK
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40
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Yoon I, Park HS, Cui BC, Li JZ, Kim JH, Lkhagvadulam B, Shim YK. Photodynamic and Antioxidant Activities of Divalent Transition Metal Complexes of Methyl Pheophorbide-a. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.2981] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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Kantevari S, Addla D, Bagul PK, Sridhar B, Banerjee SK. Synthesis and evaluation of novel 2-butyl-4-chloro-1-methylimidazole embedded chalcones and pyrazoles as angiotensin converting enzyme (ACE) inhibitors. Bioorg Med Chem 2011; 19:4772-81. [DOI: 10.1016/j.bmc.2011.06.085] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Revised: 06/27/2011] [Accepted: 06/28/2011] [Indexed: 11/16/2022]
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42
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Bhuyan BJ, Mugesh G. Effect of peptide-based captopril analogues on angiotensin converting enzyme activity and peroxynitrite-mediated tyrosine nitration. Org Biomol Chem 2011; 9:5185-92. [DOI: 10.1039/c1ob05148b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Bhabak KP, Satheeshkumar K, Jayavelu S, Mugesh G. Inhibition of peroxynitrite- and peroxidase-mediated protein tyrosine nitration by imidazole-based thiourea and selenourea derivatives. Org Biomol Chem 2011; 9:7343-50. [DOI: 10.1039/c1ob05773a] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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