1
|
Kenari F, Molnár S, Borges ID, Napolitano HB, Perjési P. ( E)-2-Benzylidenecyclanones: Part XVIII Study the Possible Link between Glutathione Reactivity and Cancer Cell Cytotoxic Effects of Some Cyclic Chalcone Analogs A Comparison of the Reactivity of the Open-Chain and the Seven-Membered Homologs. Int J Mol Sci 2023; 24:ijms24108557. [PMID: 37239911 DOI: 10.3390/ijms24108557] [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: 04/14/2023] [Revised: 05/01/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Non-enzymatic thiol addition into the α,β-unsaturated carbonyl system is associated with several biological effects. In vivo, the reactions can form small-molecule thiol (e.g., glutathione) or protein thiol adducts. The reaction of two synthetic (4'-methyl- and 4'-methoxy substituted) cyclic chalcone analogs with reduced glutathione (GSH) and N-acetylcysteine (NAC) was studied by (high-pressure liquid chromatography-ultraviolet spectroscopy) HPLC-UV method. The selected compounds displayed in vitro cancer cell cytotoxicity (IC50) of different orders of magnitude. The structure of the formed adducts was confirmed by (high-pressure liquid chromatography-mass spectrometry) HPLC-MS. The incubations were performed under three different pH conditions (pH 3.2/3.7, 6.3/6.8, and 8.0/7.4). The chalcones intrinsically reacted with both thiols under all incubation conditions. The initial rates and compositions of the final mixtures depended on the substitution and the pH. The frontier molecular orbitals and the Fukui function were carried out to investigate the effects on open-chain and seven-membered cyclic analogs. Furthermore, machine learning protocols were used to provide more insights into physicochemical properties and to support the different thiol-reactivity. HPLC analysis indicated diastereoselectivity of the reactions. The observed reactivities do not directly relate to the different in vitro cancer cell cytotoxicity of the compounds.
Collapse
Affiliation(s)
- Fatemeh Kenari
- Institute of Pharmaceutical Chemistry, University of Pécs, H-7624 Pécs, Hungary
| | - Szilárd Molnár
- Institute of Pharmaceutical Chemistry, University of Pécs, H-7624 Pécs, Hungary
- Research Institute for Viticulture and Oenology, University of Pécs, H-7634 Pécs, Hungary
| | - Igor D Borges
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis 75070-290, GO, Brazil
| | - Hamilton B Napolitano
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis 75070-290, GO, Brazil
| | - Pál Perjési
- Institute of Pharmaceutical Chemistry, University of Pécs, H-7624 Pécs, Hungary
- Grupo de Química Teórica e Estrutural de Anápolis, Universidade Estadual de Goiás, Anápolis 75070-290, GO, Brazil
| |
Collapse
|
2
|
Cury BJ, Boeing T, Somensi LB, Campos A, Cechinel-Filho V, de Souza P, da Silva LM. Dimethyl Cardamonin from Fruits of Campomanesia reitziana D. Legrand Promotes Gastroprotection and Gastric Healing Effects in Rodents. Chem Biodivers 2022; 19:e202200727. [PMID: 36251014 DOI: 10.1002/cbdv.202200727] [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: 08/02/2022] [Accepted: 10/17/2022] [Indexed: 12/27/2022]
Abstract
Campomanesia reitziana D. Legrand (Myrtaceae) displays antiulcer properties when given to rodents. The major active chemical components of C. reitziana are chalcones, including 4',6'-dihydroxy-2'-methoxy-3',5'-dimethylchalcone or dimethyl cardamonin (DMC); therefore, we hypothesized that this compound could have antiulcer effects and the present study aimed to evaluate its gastroprotective and gastric healing properties. DMC was isolated from the fruits of C. reitziana, and its gastroprotective effect was evaluated by ethanol and indomethacin-induced gastric ulcer models in mice (0.1 mg/kg, i.p. and 1 and 3 mg/kg, p.o.). Oxidative stress and inflammatory parameters were analyzed in the gastric tissue. Moreover, its gastric healing effect was evaluated in rats. In addition, the compound's mode of action was evaluated in vivo and in vitro by measuring H+ -K+ -ATPase activity. Finally, the cytotoxic potential of DMC was tested in fibroblasts and human gastric adenocarcinoma cells. The DMC reduced the ethanol-induced gastric ulcer in mice by 77 %, increased the adhered mucus, and reduced lipoperoxides levels. The block of nonprotein sulfhydryls (NP-SH) compounds by pretreatment with N-ethylmaleimide (NEM), the inhibition of nitric oxide synthase with Nω-nitro-L-arginine methyl ester hydrochloride (L-NAME), or the antagonism of α2 receptor using yohimbine reversed the gastroprotective effects of DMC. Furthermore, DMC reduced the acidity of gastric content in pylorus-ligated rats but did not change H+ , K+ -ATPase (isolated from rabbit) activity in vitro. DMC reduced the lesion area in acetic acid-induced ulcers and decreased myeloperoxidase activity. DMC did not change the viability of fibroblast cells (L929) but reduced the viability of human gastric adenocarcinoma cells (AGS). The results confirmed that DMC could significantly enhance the gastric healing process and prevent ulcers due to improving protective factors on the gastric mucosa and reducing gastric acid secretion.
Collapse
Affiliation(s)
- Benhur Judah Cury
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, Centro, 88302-901, Itajaí, Santa Catarina, Brazil
| | - Thaise Boeing
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, Centro, 88302-901, Itajaí, Santa Catarina, Brazil
| | - Lincon Bordignon Somensi
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, Centro, 88302-901, Itajaí, Santa Catarina, Brazil
| | - Adriana Campos
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, Centro, 88302-901, Itajaí, Santa Catarina, Brazil
| | - Valdir Cechinel-Filho
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, Centro, 88302-901, Itajaí, Santa Catarina, Brazil
| | - Priscila de Souza
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, Centro, 88302-901, Itajaí, Santa Catarina, Brazil
| | - Luisa Mota da Silva
- Programa de Pós-graduação em Ciências Farmacêuticas, Núcleo de Investigações Químico-Farmacêuticas, Universidade do Vale do Itajaí, Rua Uruguai, 458, Centro, 88302-901, Itajaí, Santa Catarina, Brazil
| |
Collapse
|
3
|
Ferreira LOA, Molnár S, Martins FT, Perjési P, Keng Queiroz LH, Noda-Perez C. Michael addition reaction of symmetrically halogenated bischalcones with reduced glutathione assessed by RP-HPLC and RP-HPLC-ESI-MS. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
5
|
Bernardes A, D'Oliveira GDC, Silezin A, Kuzma M, Molnár S, Noda Pérez C, Perjési P. Reagent-induced asymmetric induction in addition reaction of reduced glutathione onto bis-Mannich chalcones. Arch Pharm (Weinheim) 2018; 351:e1700386. [PMID: 29775221 DOI: 10.1002/ardp.201700386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 12/10/2017] [Accepted: 04/24/2018] [Indexed: 11/10/2022]
Abstract
The stereochemistry of non-enzyme catalyzed nucleophilic addition of GSH to 4'-hydroxychalcone 1 and its bis-Mannich derivative 2 was investigated at different pH values (pH 3.2, 6.1, 7.4, and 8.0). The stereochemical outcome of the reactions was evaluated by HPLC-UV-Vis method. Under strongly acidic conditions (pH 3.2), an unexpected diastereoselective addition of GSH onto the bis-Mannich derivative 2 was observed. Such a selectivity could not be observed in the similar reaction of 2 with N-acetylcysteine. The observed stereoselectivity can be rationalized by ion-pair formation between the protonated Mannich nitrogens and the deprotonated GSH(glutamate)-carboxylate. To the best of our knowledge, this is the first example of reagent-induced asymmetric induction in Michael-type additions of thiols.
Collapse
Affiliation(s)
- Aline Bernardes
- Institute of Chemistry, Federal University of Goiás, Goiânia, Brazil.,Institute of Pharmaceutical Chemistry, University of Pécs, Pécs, Hungary
| | - Giulio D C D'Oliveira
- Institute of Chemistry, Federal University of Goiás, Goiânia, Brazil.,Institute of Pharmaceutical Chemistry, University of Pécs, Pécs, Hungary
| | - Aneta Silezin
- Institute of Pharmaceutical Chemistry, University of Pécs, Pécs, Hungary.,Faculty of Chemistry, Maria Curie-Sklodowska University, Lublin, Poland
| | - Mónika Kuzma
- Institute of Pharmaceutical Chemistry, University of Pécs, Pécs, Hungary
| | - Szilárd Molnár
- Institute of Pharmaceutical Chemistry, University of Pécs, Pécs, Hungary
| | | | - Pál Perjési
- Institute of Pharmaceutical Chemistry, University of Pécs, Pécs, Hungary
| |
Collapse
|
6
|
Rozmer Z, Berki T, Maász G, Perjési P. Different effects of two cyclic chalcone analogues on redox status of Jurkat T cells. Toxicol In Vitro 2014; 28:1359-65. [PMID: 25014873 DOI: 10.1016/j.tiv.2014.06.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 05/12/2014] [Accepted: 06/23/2014] [Indexed: 10/25/2022]
Abstract
Chalcones are intermediary compounds of the biosynthetic pathway of the naturally flavonoids. Previous studies have demonstrated that chalcones and their conformationally rigid cyclic analogues have tumour cell cytotoxic and chemopreventive effects. It has been shown that equitoxic doses of the two cyclic chalcone analogues (E)-2-(4'-methoxybenzylidene)-(2) and (E)-2-(4'-methylbenzylidene)-1-benzosuberone (3) have different effect on cell cycle progress of the investigated Jurkat cells. It was also found that the compounds affect the cellular thiol status of the treated cells and show intrinsic (non-enzyme-catalyzed) reactivity towards GSH under cell-free conditions. In order to gain new insights into the cytotoxic mechanism of the compounds, effects on the redox status and glutathione level of Jurkat cells were investigated. Detection of intracellular ROS level in Jurkat cells exposed to 2 and 3 was performed using the dichlorofluorescein-assay. Compound 2 did not influence ROS activity either on 1 or 4h exposure; in contrast, chalcone 3 showed to reduce ROS level at both timepoints. The two compounds had different effects on cellular glutathione status as well. Compound 2 significantly increased the oxidized glutathione (GSSG) level showing an interference with the cellular antioxidant defence. On the contrary, chalcone 3 enhanced the reduced glutathione level, indicating enhanced cellular antioxidant activity. To investigate the chalcone-GSH conjugation reactions under cellular conditions, a combination of a RP-HPLC method with electrospray ionization mass spectrometry (ESI-MS) was performed. Chalcone-GSH adducts could not be observed either in the cell supernatant or the cell sediment after deproteinization. The investigations provide further details of dual - cytotoxic and chemopreventive - effects of the cyclic chalcone analogues.
Collapse
Affiliation(s)
- Zsuzsanna Rozmer
- Department of Pharmaceutical Chemistry, University of Pécs, P.O. Box 99, H-7602 Pécs, Hungary
| | - Tímea Berki
- Department of Immunology and Biotechnology, University of Pécs, P.O. Box 99, H-7602 Pécs, Hungary
| | - Gábor Maász
- Department of Biochemistry and Medical Chemistry, University of Pécs, P.O. Box 99, H-7602 Pécs, Hungary
| | - Pál Perjési
- Department of Pharmaceutical Chemistry, University of Pécs, P.O. Box 99, H-7602 Pécs, Hungary.
| |
Collapse
|