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Hidalgo-Lozada GM, Villarruel-López A, Nuño K, García-García A, Sánchez-Nuño YA, Ramos-García CO. Clinically Effective Molecules of Natural Origin for Obesity Prevention or Treatment. Int J Mol Sci 2024; 25:2671. [PMID: 38473918 DOI: 10.3390/ijms25052671] [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: 01/29/2024] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024] Open
Abstract
The prevalence and incidence of obesity and the comorbidities linked to it are increasing worldwide. Current therapies for obesity and associated pathologies have proven to cause a broad number of adverse effects, and often, they are overpriced or not affordable for all patients. Among the alternatives currently available, natural bioactive compounds stand out. These are frequently contained in pharmaceutical presentations, nutraceutical products, supplements, or functional foods. The clinical evidence for these molecules is increasingly solid, among which epigallocatechin-3-gallate, ellagic acid, resveratrol, berberine, anthocyanins, probiotics, carotenoids, curcumin, silymarin, hydroxy citric acid, and α-lipoic acid stand out. The molecular mechanisms and signaling pathways of these molecules have been shown to interact with the endocrine, nervous, and gastroenteric systems. They can regulate the expression of multiple genes and proteins involved in starvation-satiety processes, activate the brown adipose tissue, decrease lipogenesis and inflammation, increase lipolysis, and improve insulin sensitivity. This review provides a comprehensive view of nature-based therapeutic options to address the increasing prevalence of obesity. It offers a valuable perspective for future research and subsequent clinical practice, addressing everything from the molecular, genetic, and physiological bases to the clinical study of bioactive compounds.
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Affiliation(s)
| | - Angelica Villarruel-López
- Department of Pharmacobiology, University Center for Exact and Engineering Sciences, University of Guadalajara, Guadalajara 44430, Mexico
| | - Karla Nuño
- Department of Psychology, Education and Health, ITESO Jesuit University of Guadalajara, Guadalajara 45604, Mexico
| | - Abel García-García
- Institute of Science and Technology for Health Innovation, Guadalajara 44770, Mexico
- Department of Medical Clinic, Health Sciences University Center, University of Guadalajara, Guadalajara 44340, Mexico
| | - Yaír Adonaí Sánchez-Nuño
- Department of Pharmacobiology, University Center for Exact and Engineering Sciences, University of Guadalajara, Guadalajara 44430, Mexico
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Preparation and Characterization of Silymarin Gel: A Novel Topical Mucoadhesive Formulation for Potential Applicability in Oral Pathologies. Gels 2023; 9:gels9020139. [PMID: 36826309 PMCID: PMC9956077 DOI: 10.3390/gels9020139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/27/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023] Open
Abstract
Silybum marianum has been used for centuries by herbalists and physicians to treat different forms of liver diseases. It contains flavonoid, which has antioxidant, anti-inflammatory, antifibrotic and anticancer properties. The objective of this research was to develop a silymarin-based mucoadhesive gel for prolonged release in oral mucosa and to evaluate the same by using in vitro drug release kinetic models and ex vivo methods for drug permeation using chicken buccal mucosa. The mucoadhesive gel was formulated in different trials by varying the concentration of silymarin and polymer. Out of 10 formulation trials, the F10 optimized trial was characterized for in vitro physicochemical parameters such as pH, homogeneity, viscosity, stability, drug content, in vitro drug release, in vitro antioxidant assay and ex vivo permeation study. Trial 10 was chosen as the best trial formulation among the other trials and was marked as an optimal trial. The physicochemical properties observed were pH to be 6.4 ± 0.01, the gel free of lumps, spreadability of 23.75 ± 0.03 and drug content of 32.77 ± 0.20 mg/g. It had no physiological changes such as color shift or fluid exudate segregation after 6 months of storage at room temperature. In vitro drug release established the presence of a non-fickian mechanism and demonstrated dose-dependent antioxidant activity. Ex vivo findings indicated 21.97 ± 0.18% release, proving that the gel can permeate through the oral mucosal membrane. Our future research will concentrate on expanding the therapeutic scope by developing the formulation trial F10 to a nanoformulation and conducting clinical trials for its potential use in various oral diseases.
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Romanucci V, Pagano R, Lembo A, Capasso D, Di Gaetano S, Zarrelli A, Di Fabio G. Phosphodiester Silybin Dimers Powerful Radical Scavengers: A Antiproliferative Activity on Different Cancer Cell Lines. Molecules 2022; 27:molecules27051702. [PMID: 35268803 PMCID: PMC8911775 DOI: 10.3390/molecules27051702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 02/28/2022] [Accepted: 03/03/2022] [Indexed: 11/20/2022] Open
Abstract
Silibinin is the main biologically active component of silymarin extract and consists of a mixture 1:1 of two diastereoisomeric flavonolignans, namely silybin A (1a) and silybin B (1b), which we call here silybins. Despite the high interest in the activity of this flavonolignan, there are still few studies that give due attention to the role of its stereochemistry and, there is still today a strong need to investigate in this area. In this regard, here we report a study concerning the radical scavenger ability and the antiproliferative activity on different cell lines, both of silybins and phosphodiester-linked silybin dimers. An efficient synthetic strategy to obtain silybin dimers in an optical pure form (6aa, 6ab and 6bb) starting from a suitable building block of silybin A and silybin B, obtained by us from natural extract silibinin, was proposed. New dimers show strong antioxidant properties, determined through hydroxyl radical (HO●) scavenging ability, comparable to the value reported for known potent antioxidants such as quercetin. A preliminary screening was performed by treating cells with 10 and 50 μM concentrations for 48 h to identify the most sensitive cell lines. The results show that silibinin compounds were active on Jurkat, A375, WM266, and HeLa, but at the tested concentrations, they did not interfere with the growth of PANC, MCF-7, HDF or U87. In particular, both monomers (1a and 1b) and dimers (6aa, 6ab and 6bb) present selective anti-proliferative activity towards leukemia cells in the mid-micromolar range and are poorly active on normal cells. They exhibit different mechanisms of action in fact all the cells treated with the 1a and 1b go completely into apoptosis, whereas only part of the cells treated with 6aa and 6ab were found to be in apoptosis.
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Affiliation(s)
- Valeria Romanucci
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, 80126 Napoli, Italy; (V.R.); (R.P.); (A.L.); (A.Z.)
| | - Rita Pagano
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, 80126 Napoli, Italy; (V.R.); (R.P.); (A.L.); (A.Z.)
| | - Antonio Lembo
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, 80126 Napoli, Italy; (V.R.); (R.P.); (A.L.); (A.Z.)
| | - Domenica Capasso
- Interuniversity Research Centre on Bioactive Peptides (CIRPeB), University of Naples “Federico II“, Via Mezzocannone 16, 80134 Napoli, Italy; (D.C.); (S.D.G.)
- Center for Life Sciences and Technologies (CESTEV), University of Naples “Federico II“, Via De Amicis 95, 80145 Napoli, Italy
| | - Sonia Di Gaetano
- Interuniversity Research Centre on Bioactive Peptides (CIRPeB), University of Naples “Federico II“, Via Mezzocannone 16, 80134 Napoli, Italy; (D.C.); (S.D.G.)
- Institute of Biostructures and Bioimaging-CNR, Via Mezzocannone 16, 80134 Napoli, Italy
| | - Armando Zarrelli
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, 80126 Napoli, Italy; (V.R.); (R.P.); (A.L.); (A.Z.)
| | - Giovanni Di Fabio
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, 80126 Napoli, Italy; (V.R.); (R.P.); (A.L.); (A.Z.)
- AIPRAS Onlus (Associazione Italiana per la Promozione delle Ricerche sull’Ambiente e la Salute umana Onlus), Via Campellone 50, 82030 Dugenta, Italy
- Correspondence: ; Tel.: +39-081674001
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Romanucci V, Giordano M, Pagano R, Zimbone S, Giuffrida ML, Milardi D, Zarrelli A, Di Fabio G. Investigation on the solid-phase synthesis of silybin prodrugs and their timed-release. Bioorg Med Chem 2021; 50:116478. [PMID: 34695708 DOI: 10.1016/j.bmc.2021.116478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/07/2021] [Accepted: 10/11/2021] [Indexed: 12/15/2022]
Abstract
Prodrugs are ingenious derivatives of therapeutic agents designed to improve the pharmacokinetic profile of the drug. Here, we report an efficient and regioselective solid phase approach for obtaining new prodrugs of 9″-silybins conjugated with 3'-ribonucleotide units (uridine and adenosine) as pro-moieties. Uridine and adenosine conjugates were obtained in good yields (41-50%), beginning with silibinin and its diastereomers (silybin A and silybin B), using a NovaSyn® support functionalized with an ad hoc linker, which allowed selective detachment of only the desired products. As expected, the solubility of both uridine and adenosine conjugates was higher than that of the parental natural product (5 mg/mL and 3 mg/mL for uridine and adenosine, respectively). Our investigations revealed that uridine conjugates were quickly cleaved by RNase A, releasing silybin drugs, even at low enzyme concentrations. No toxic effects were found for any ribonucleotide conjugate on differentiated neuroblastoma SH-SY5Y cells when tested at increasing concentrations. All results strongly encourage further investigations of uridine-silybin prodrugs as potential therapeutic agents for both oral and intravenous administration. The present synthetic approach represents a valuable strategy to the future design of new prodrugs with modified nucleoside pro-moieties to modulate the pharmacokinetics of silybins or different natural products with strong pharmacological activities but poor bioavailability.
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Affiliation(s)
- Valeria Romanucci
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Napoli, Italy
| | - Maddalena Giordano
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Napoli, Italy
| | - Rita Pagano
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Napoli, Italy
| | - Stefania Zimbone
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Sede Secondaria di Catania, Via Paolo Gaifami 18, 95126 Catania, Italy
| | - Maria Laura Giuffrida
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Sede Secondaria di Catania, Via Paolo Gaifami 18, 95126 Catania, Italy
| | - Danilo Milardi
- Istituto di Cristallografia, Consiglio Nazionale delle Ricerche, Sede Secondaria di Catania, Via Paolo Gaifami 18, 95126 Catania, Italy
| | - Armando Zarrelli
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Napoli, Italy
| | - Giovanni Di Fabio
- Department of Chemical Sciences, University of Naples Federico II, Via Cintia 4, I-80126 Napoli, Italy.
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De Marco A, Luongo G, Di Marino C, De Tommaso G, Di Fabio G, Zarrelli A. Silymarin from Silybum marianum by Naviglio's extractor: a new and very efficient approach. Nat Prod Res 2021; 35:2621-2627. [PMID: 31691591 DOI: 10.1080/14786419.2019.1687474] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 10/21/2019] [Accepted: 10/25/2019] [Indexed: 01/29/2023]
Abstract
The aim of this work is to compare new and traditional extraction methods to obtain silymarin from Silybum marianum, a biennial herbaceous plant of the Asteraceae family, present throughout the Mediterranean basin and used to treat several diseases. Silymarin primarily contains flavonolignans and flavonoids and is used in some pharmaceutical preparations to improve of liver function and as a protective against some hepatotoxins. In six extracts obtained by new and traditional extraction methods, the total contents of silymarin and its main flavonolignans, total phenols and condensed tannins were evaluated in addition to their respective antioxidant capacities. By the Naviglio extractor, that is a rapid solid-liquid dynamic extraction method, it is possible to obtain a fraction quantitatively more abundant than other methods, and with a lower content of tannins and phenolic compounds but with a higher content of flavonolignans, rare and expensive, and therefore easier to separate and purify.
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Affiliation(s)
- Anna De Marco
- Department of Biology, University of Naples "Federico II", Naples, Italy
| | - Giovanni Luongo
- Department of Chemical Sciences, University of Napoli "Federico II", Naples, Italy
| | - Cinzia Di Marino
- Department of Chemical Sciences, University of Napoli "Federico II", Naples, Italy
| | - Gaetano De Tommaso
- Department of Chemical Sciences, University of Napoli "Federico II", Naples, Italy
| | - Giovanni Di Fabio
- Department of Chemical Sciences, University of Napoli "Federico II", Naples, Italy
| | - Armando Zarrelli
- Department of Chemical Sciences, University of Napoli "Federico II", Naples, Italy
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Participation of MicroRNAs in the Treatment of Cancer with Phytochemicals. Molecules 2020; 25:molecules25204701. [PMID: 33066509 PMCID: PMC7587345 DOI: 10.3390/molecules25204701] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/08/2020] [Accepted: 10/13/2020] [Indexed: 02/06/2023] Open
Abstract
Cancer is a global health concern and one of the main causes of disease-related death. Even with considerable progress in investigations on cancer therapy, effective anti-cancer agents and regimens have thus far been insufficient. There has been compelling evidence that natural phytochemicals and their derivatives have potent anti-cancer activities. Plant-based anti-cancer agents, such as etoposide, irinotecan, paclitaxel, and vincristine, are currently being applied in medical treatments for patients with cancer. Further, the efficacy of plenty of phytochemicals has been evaluated to discover a promising candidate for cancer therapy. For developing more effective cancer therapy, it is required to apprehend the molecular mechanism deployed by natural compounds. MicroRNAs (miRNAs) have been realized to play a pivotal role in regulating cellular signaling pathways, affecting the efficacy of therapeutic agents in cancer. This review presents a feature of phytochemicals with anti-cancer activity, focusing mainly on the relationship between phytochemicals and miRNAs, with insights into the role of miRNAs as the mediators and the regulators of anti-cancer effects of phytochemicals.
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Roehlen N, Crouchet E, Baumert TF. Liver Fibrosis: Mechanistic Concepts and Therapeutic Perspectives. Cells 2020; 9:cells9040875. [PMID: 32260126 PMCID: PMC7226751 DOI: 10.3390/cells9040875] [Citation(s) in RCA: 549] [Impact Index Per Article: 137.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/28/2020] [Accepted: 04/01/2020] [Indexed: 02/06/2023] Open
Abstract
Liver fibrosis due to viral or metabolic chronic liver diseases is a major challenge of global health. Correlating with liver disease progression, fibrosis is a key factor for liver disease outcome and risk of hepatocellular carcinoma (HCC). Despite different mechanism of primary liver injury and disease-specific cell responses, the progression of fibrotic liver disease follows shared patterns across the main liver disease etiologies. Scientific discoveries within the last decade have transformed the understanding of the mechanisms of liver fibrosis. Removal or elimination of the causative agent such as control or cure of viral infection has shown that liver fibrosis is reversible. However, reversal often occurs too slowly or too infrequent to avoid life-threatening complications particularly in advanced fibrosis. Thus, there is a huge unmet medical need for anti-fibrotic therapies to prevent liver disease progression and HCC development. However, while many anti-fibrotic candidate agents have shown robust effects in experimental animal models, their anti-fibrotic effects in clinical trials have been limited or absent. Thus, no approved therapy exists for liver fibrosis. In this review we summarize cellular drivers and molecular mechanisms of fibrogenesis in chronic liver diseases and discuss their impact for the development of urgently needed anti-fibrotic therapies.
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Affiliation(s)
- Natascha Roehlen
- Université de Strasbourg, 67000 Strasbourg, France; (N.R.); (E.C.)
- Institut de Recherche sur les Maladies Virales et Hépatiques U1110, 67000 Strasbourg, France
| | - Emilie Crouchet
- Université de Strasbourg, 67000 Strasbourg, France; (N.R.); (E.C.)
- Institut de Recherche sur les Maladies Virales et Hépatiques U1110, 67000 Strasbourg, France
| | - Thomas F. Baumert
- Université de Strasbourg, 67000 Strasbourg, France; (N.R.); (E.C.)
- Institut de Recherche sur les Maladies Virales et Hépatiques U1110, 67000 Strasbourg, France
- Pôle Hepato-digestif, Institut Hopitalo-Universitaire, Hôpitaux Universitaires de Strasbourg, 67000 Strasbourg, France
- Correspondence: ; Tel.: +33-366853703
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Dhawan V, Sutariya B, Lokras A, Thamm J, Saraf M, Warawdekar U, Fahr A, Nagarsenker M. Lipid nanoconstructs for superior hepatoprotection: In vitro assessments as predictive tool for in vivo translation. Int J Pharm 2020; 579:119176. [DOI: 10.1016/j.ijpharm.2020.119176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 02/19/2020] [Accepted: 02/22/2020] [Indexed: 12/19/2022]
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Méndez-Sánchez N, Dibildox-Martinez M, Sosa-Noguera J, Sánchez-Medal R, Flores-Murrieta FJ. Superior silybin bioavailability of silybin-phosphatidylcholine complex in oily-medium soft-gel capsules versus conventional silymarin tablets in healthy volunteers. BMC Pharmacol Toxicol 2019; 20:5. [PMID: 30635055 PMCID: PMC6330464 DOI: 10.1186/s40360-018-0280-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 12/13/2018] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Fibrosis is a response to chronic liver disease that results in excessive accumulation of extracellular matrix proteins and formation of scar tissue. Fibrosis represents a clinical challenge of worldwide significance. Several studies have demonstrated that many natural products and herbal medicines have activity against liver fibrosis, and extracts of milk thistle such as silymarin and silybin are the natural compounds most commonly prescribed for liver diseases. Therefore, we sought to assess and compare the pharmacokinetic properties and bioavailability of silybin-phosphatidylcholine complex in oily-medium soft-gel capsules and conventional silymarin tablets in healthy Mexican volunteers. METHODS We enrolled 23 healthy volunteers to participate in a prospective, balanced, blind, single-dose, two-way crossover study with a one-week washout period. Fasting participants received either 45 mg silybin-phosphatidylcholine complex or 70 mg silymarin to assess which formulation provided better bioavailability of silybin. Plasma was obtained and analysed for silybin concentration using a validated ultra-performance liquid chromatography-tandem mass spectroscopy method. Pharmacokinetic parameters were obtained by non-compartmental analysis and values were compared by analysis of variance for a crossover design. Ratios of maximum plasma drug concentration and area under the curve (AUC) were obtained and 90% confidence intervals were calculated. RESULTS The 23 healthy subjects (11 women, 12 men) who participated in the study were aged 22-31 years old (average: 28), average weight 64.8 kg, height 1.65 m and body mass index 23.5 kg/m2. Plasma levels of silybin were higher after the administration of silybin-phosphatidylcholine complex capsules compared with that after conventional silymarin tablets (P < 0.0001). CONCLUSIONS The silybin-phosphatidylcholine complex in oily-medium soft-gel capsules seems to provide superior bioavailability. However, clinical studies must be performed to demonstrate its clinical relevance in the treatment of liver diseases. TRIAL REGISTRATION NCT03440164 ; registered on November 11, 2016.
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Affiliation(s)
- Nahum Méndez-Sánchez
- Liver Research Unit, Medica Sur Clinic & Foundation, Puente de Piedra 150, Col. Toriello Guerra, 14050, Mexico City, Mexico.
| | | | | | | | - Francisco J Flores-Murrieta
- National Institute of Respiratory Diseases "Ismael Cosío Villegas", 14080, Mexico City, Mexico.,Superior School of Medicine, National Polytechnic Institute of Mexico, 14080, Mexico City, Mexico
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Romanucci V, Di Fabio G, Zarrelli A. A New Class of Synthetic Flavonolignan-Like Dimers: Still Few Molecules, but with Attractive Properties. Molecules 2018; 24:E108. [PMID: 30597952 PMCID: PMC6337569 DOI: 10.3390/molecules24010108] [Citation(s) in RCA: 8] [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: 11/19/2018] [Revised: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 02/06/2023] Open
Abstract
In recent years, there has been increasing interest in dimeric molecules due to reports of their promising therapeutic value in the treatment of numerous diseases (such as cancer, HIV, Alzheimer's and, malaria). Many reports in the literature have highlighted the ability of these molecules to interact not only with specific biologic receptors but also to induce a biological response that more than doubles the results of the corresponding monomeric counterpart. In this regard, flavonolignan dimers or simply bi-flavonolignans are an emerging class of dimeric compounds that unlike bi-flavonoids, which are very widespread in nature, consist of synthetic dimers of some flavonolignans isolated from the milk thistle Silybum marianum [L. Gaertn. (Asteraceae)]. This mini-review will discuss recent developments in the synthesis, characterization and antioxidant activity of new families of flavonolignan dimers, in light of emerging medicinal chemistry strategies.
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Affiliation(s)
- Valeria Romanucci
- Department of Chemical Sciences, University of Napoli 'Federico II', Via Cintia 4, I-80126 Napoli, Italy.
| | - Giovanni Di Fabio
- Department of Chemical Sciences, University of Napoli 'Federico II', Via Cintia 4, I-80126 Napoli, Italy.
| | - Armando Zarrelli
- Department of Chemical Sciences, University of Napoli 'Federico II', Via Cintia 4, I-80126 Napoli, Italy.
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Drouet S, Doussot J, Garros L, Mathiron D, Bassard S, Favre-Réguillon A, Molinié R, Lainé É, Hano C. Selective Synthesis of 3- O-Palmitoyl-Silybin, a New-to-Nature Flavonolignan with Increased Protective Action against Oxidative Damages in Lipophilic Media. Molecules 2018; 23:molecules23102594. [PMID: 30309022 PMCID: PMC6222644 DOI: 10.3390/molecules23102594] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 09/22/2018] [Accepted: 10/09/2018] [Indexed: 12/11/2022] Open
Abstract
A selective acylation protocol using cerium chloride (CeCl3) as catalyst was applied to functionalize silybinin (1), a natural antioxidant flavonolignan from milk thistle fruit, in order to increase its solubility in lipophilic media while retaining its strong antioxidant activity. The selective esterification of 1 at the position 3-OH with a palmitate acyl chain leading to the formation of the 3-O-palmitoyl-silybin (2) was confirmed by both mass spectroscopy (MS) and nuclear magnetic resonance (NMR) analyses. The antioxidant activity of 1 was at least retained and even increased with the CUPRAC assay designed to estimate the antioxidant activity of both hydrophilic and lipophilic compounds. Finally, the 3-O-palmitoylation of 1, resulting in the formation of 2, also increased its anti-lipoperoxidant activity (i.e., inhibition of conjugated diene production) in two different lipophilic media (bulk oil and o/w emulsion) subjected to accelerated storage test.
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Affiliation(s)
- Samantha Drouet
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRA USC1328, Université d'Orléans, 45067 Orléans, France.
- Bioactifs et Cosmétiques, GDR 3711 COSMACTIFS, CNRS/Université d'Orléans, 45067 Orléans CÉDEX 2, France.
| | - Joël Doussot
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRA USC1328, Université d'Orléans, 45067 Orléans, France.
- Bioactifs et Cosmétiques, GDR 3711 COSMACTIFS, CNRS/Université d'Orléans, 45067 Orléans CÉDEX 2, France.
- Département Chimie Vivant Santé (EPN 7), Conservatoire National des Arts et Métiers, 75141 Paris CEDEX 03, France.
| | - Laurine Garros
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRA USC1328, Université d'Orléans, 45067 Orléans, France.
- Bioactifs et Cosmétiques, GDR 3711 COSMACTIFS, CNRS/Université d'Orléans, 45067 Orléans CÉDEX 2, France.
- Institut de Chimie Organique et Analytique, ICOA UMR7311, Université d'Orléans-CNRS, 45067 Orléans CÉDEX 2, France.
| | - David Mathiron
- Plateforme Analytique, Institut de Chimie de Picardie FR 3085 CNRS, Université de Picardie Jules Verne, 33 rue St Leu, 80039 Amiens, France.
| | - Solène Bassard
- BIOPI EA3900, Biologie des Plantes et Innovation, Université de Picardie Jules Verne, 80037 Amiens, France.
| | - Alain Favre-Réguillon
- Département Chimie Vivant Santé (EPN 7), Conservatoire National des Arts et Métiers, 75141 Paris CEDEX 03, France.
- Laboratoire de Génie des Procédés Catalytiques (UMR 5285), Université de Lyon, CPE Lyon, 43 boulevard du 11 Novembre 1918, 69100 Villeurbanne, France.
| | - Roland Molinié
- BIOPI EA3900, Biologie des Plantes et Innovation, Université de Picardie Jules Verne, 80037 Amiens, France.
| | - Éric Lainé
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRA USC1328, Université d'Orléans, 45067 Orléans, France.
- Bioactifs et Cosmétiques, GDR 3711 COSMACTIFS, CNRS/Université d'Orléans, 45067 Orléans CÉDEX 2, France.
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRA USC1328, Université d'Orléans, 45067 Orléans, France.
- Bioactifs et Cosmétiques, GDR 3711 COSMACTIFS, CNRS/Université d'Orléans, 45067 Orléans CÉDEX 2, France.
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Schramm S, Gunesch S, Lang F, Saedtler M, Meinel L, Högger P, Decker M. Investigations into neuroprotectivity, stability, and water solubility of 7-O
-cinnamoylsilibinin, its hemisuccinate and dehydro derivatives. Arch Pharm (Weinheim) 2018; 351:e1800206. [DOI: 10.1002/ardp.201800206] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Revised: 09/05/2018] [Accepted: 09/05/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Simon Schramm
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg; Würzburg Germany
| | - Sandra Gunesch
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg; Würzburg Germany
| | - Florian Lang
- Klinische Pharmazie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg; Würzburg Germany
| | - Marco Saedtler
- Pharmazeutische Technologie und Biopharmazie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg; Würzburg Germany
| | - Lorenz Meinel
- Pharmazeutische Technologie und Biopharmazie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg; Würzburg Germany
| | - Petra Högger
- Klinische Pharmazie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg; Würzburg Germany
| | - Michael Decker
- Pharmazeutische und Medizinische Chemie, Institut für Pharmazie und Lebensmittelchemie, Julius-Maximilians-Universität Würzburg; Würzburg Germany
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13
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Harvey DJ. Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2013-2014. MASS SPECTROMETRY REVIEWS 2018; 37:353-491. [PMID: 29687922 DOI: 10.1002/mas.21530] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 11/29/2016] [Indexed: 06/08/2023]
Abstract
This review is the eighth update of the original article published in 1999 on the application of Matrix-assisted laser desorption/ionization mass spectrometry (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2014. Topics covered in the first part of the review include general aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, fragmentation, and arrays. The second part of the review is devoted to applications to various structural types such as oligo- and poly- saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Much of this material is presented in tabular form. The third part of the review covers medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. © 2018 Wiley Periodicals, Inc. Mass Spec Rev 37:353-491, 2018.
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Affiliation(s)
- David J Harvey
- Target Discovery Institute, Nuffield Department of Medicine, University of Oxford, Roosevelt Drive, Oxford, OX3 7FZ, United Kingdom
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14
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Effects of Dried Blood Spot Storage on Lipidomic Analysis. Molecules 2018; 23:molecules23020403. [PMID: 29438311 PMCID: PMC6017148 DOI: 10.3390/molecules23020403] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 01/30/2018] [Accepted: 02/11/2018] [Indexed: 01/11/2023] Open
Abstract
During the lipidomic analysis of red blood cell membranes, the distribution and percentage ratios of the fatty acids are measured. Since fatty acids are the key constituents of cell membranes, by evaluating their quantities it possible to understand the general health of the cells and to obtain health indicators of the whole organism. However, because the analysis is precise, it is necessary to ensure that the blood does not undergo significant variations between the point of collection and analysis. The composition of the blood may vary dramatically weeks after collection, hence, here an attempt is made to stabilize these complex matrixes using antioxidants deposited on the paper cards on which the blood itself is deposited.
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15
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Silibinin phosphodiester glyco-conjugates: Synthesis, redox behaviour and biological investigations. Bioorg Chem 2018; 77:349-359. [PMID: 29421711 DOI: 10.1016/j.bioorg.2018.01.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/16/2018] [Accepted: 01/17/2018] [Indexed: 01/13/2023]
Abstract
New silibinin phosphodiester glyco-conjugates were synthesized by efficient phosphoramidite chemistry and were fully characterized by 2D-NMR. A wide-ranging study focused on the determination of their pKa and E° values as well as on their radical scavenging activities by different assays (DPPH, ABTS+ and HRSA) was conducted. The new glyco-conjugates are more water-soluble than silibinin, and their radical scavenging activities are higher than those of silibinin. The conjugation therefore improves both the water solubilities and antioxidant activities of the flavonolignan moieties. The serum stability was evaluated under physiological conditions, and the glyco-conjugates degraded with half-lives of 40-70 h, making them useful in pro-drug approaches. We started by treating androgen-dependent prostate cancer (PCa) LNCaP cells and then expanded our studies to androgen-independent PCa PC3 and DU145 cells. In most cases, the new derivatives significantly reduced both total and live cell numbers, albeit at different levels. Anti-HIV activities were evaluated and the glucosamine-phosphate silibinin derivative showed higher activity (IC50 = 73 μM) than silibinin.
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16
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Romanucci V, Gravante R, Cimafonte M, Marino CD, Mailhot G, Brigante M, Zarrelli A, Fabio GD. Phosphate-Linked Silibinin Dimers (PLSd): New Promising Modified Metabolites. Molecules 2017; 22:molecules22081323. [PMID: 28800072 PMCID: PMC6152259 DOI: 10.3390/molecules22081323] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 07/25/2017] [Accepted: 08/01/2017] [Indexed: 01/18/2023] Open
Abstract
By exploiting the regioselective protection of the hydroxyl groups of silibinin along with the well-known phosphoramidite chemistry, we have developed an efficient strategy for the synthesis of new silibinin-modified species, which we have named Phosphate-Linked Silibinin Dimers (PLSd), in which the monomer units are linked by phosphodiester bonds. The antioxidant abilities of the new PLSd were estimated on HepG2 cells using DPPH free radical scavenging and xanthine/xanthine oxidase assays. The new phosphate-metabolites showed a higher anti-oxidant activity than the silibinin, as well as very low toxicity. The ability to scavenge reactive oxygen species (ROS) such as singlet oxygen () and hydroxyl radical () reveals that the two dimers are able to scavenge about two times more effectively than silibinin. Finally, solubility studies have shown that the PLSd present good water solubility (more than 20 mg·L-1) under circumneutral pH values, whereas the silibinin was found to be very poorly soluble (less than 0.4 mg·L-1) and not stable under alkaline conditions. Together, the above promising results warrant further investigation of the future potential of the PLSd as anti-oxidant metabolites within the large synthetic polyphenols field.
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Affiliation(s)
- Valeria Romanucci
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, Napoli (NA) I-80126, Italy.
| | - Raffaele Gravante
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, Napoli (NA) I-80126, Italy.
| | - Martina Cimafonte
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, Napoli (NA) I-80126, Italy.
| | - Cinzia Di Marino
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, Napoli (NA) I-80126, Italy.
- Consorzio Interuniversitario Sannio Tech, P.zza San G. Moscati 8, SS Appia km 256, Apollosa (BN) 82030, Italy.
| | - Gilles Mailhot
- Institut de Chimie de Clermont-Ferrand, CNRS, SIGMA Clermont, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France.
| | - Marcello Brigante
- Institut de Chimie de Clermont-Ferrand, CNRS, SIGMA Clermont, Université Clermont Auvergne, F-63000 Clermont-Ferrand, France.
| | - Armando Zarrelli
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, Napoli (NA) I-80126, Italy.
| | - Giovanni Di Fabio
- Department of Chemical Sciences, University of Naples "Federico II", Via Cintia 4, Napoli (NA) I-80126, Italy.
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17
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Federico A, Dallio M, Loguercio C. Silymarin/Silybin and Chronic Liver Disease: A Marriage of Many Years. Molecules 2017; 22:molecules22020191. [PMID: 28125040 PMCID: PMC6155865 DOI: 10.3390/molecules22020191] [Citation(s) in RCA: 248] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 01/13/2017] [Accepted: 01/18/2017] [Indexed: 02/06/2023] Open
Abstract
Silymarin is the extract of Silybum marianum, or milk thistle, and its major active compound is silybin, which has a remarkable biological effect. It is used in different liver disorders, particularly chronic liver diseases, cirrhosis and hepatocellular carcinoma, because of its antioxidant, anti-inflammatory and antifibrotic power. Indeed, the anti-oxidant and anti-inflammatory effect of silymarin is oriented towards the reduction of virus-related liver damages through inflammatory cascade softening and immune system modulation. It also has a direct antiviral effect associated with its intravenous administration in hepatitis C virus infection. With respect to alcohol abuse, silymarin is able to increase cellular vitality and to reduce both lipid peroxidation and cellular necrosis. Furthermore, silymarin/silybin use has important biological effects in non-alcoholic fatty liver disease. These substances antagonize the progression of non-alcoholic fatty liver disease, by intervening in various therapeutic targets: oxidative stress, insulin resistance, liver fat accumulation and mitochondrial dysfunction. Silymarin is also used in liver cirrhosis and hepatocellular carcinoma that represent common end stages of different hepatopathies by modulating different molecular patterns. Therefore, the aim of this review is to examine scientific studies concerning the effects derived from silymarin/silybin use in chronic liver diseases, cirrhosis and hepatocellular carcinoma.
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Affiliation(s)
- Alessandro Federico
- Department of Clinical and Experimental Medicine, Second University of Naples, 80131 Naples, Italy.
| | - Marcello Dallio
- Department of Clinical and Experimental Medicine, Second University of Naples, 80131 Naples, Italy.
| | - Carmelina Loguercio
- Department of Clinical and Experimental Medicine, Second University of Naples, 80131 Naples, Italy.
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18
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Antoszczak M, Klejborowska G, Kruszyk M, Maj E, Wietrzyk J, Huczyński A. Synthesis and Antiproliferative Activity of Silybin Conjugates with Salinomycin and Monensin. Chem Biol Drug Des 2015; 86:1378-86. [PMID: 26058448 DOI: 10.1111/cbdd.12602] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 04/02/2015] [Accepted: 05/30/2015] [Indexed: 11/30/2022]
Abstract
Aiming at development of multitarget drugs for the anticancer treatment, new silybin (SIL) conjugates with salinomycin (SAL) and monensin (MON) were synthesized, in mild esterification conditions, and their antiproliferative activity was studied. The conjugates obtained exhibit anticancer activity against HepG2, LoVo and LoVo/DX cancer cell lines. Moreover, MON-SIL conjugate exhibits higher anticancer potential and better selectivity than the corresponding SAL-SIL conjugate.
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Affiliation(s)
- Michał Antoszczak
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614, Poznań, Poland
| | - Greta Klejborowska
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614, Poznań, Poland
| | - Monika Kruszyk
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614, Poznań, Poland
| | - Ewa Maj
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114, Wrocław, Poland
| | - Joanna Wietrzyk
- Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Rudolfa Weigla 12, 53-114, Wrocław, Poland
| | - Adam Huczyński
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614, Poznań, Poland
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