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Zubrickė I, Jonuškienė I, Kantminienė K, Tumosienė I, Petrikaitė V. Synthesis and In Vitro Evaluation as Potential Anticancer and Antioxidant Agents of Diphenylamine-Pyrrolidin-2-one-Hydrazone Derivatives. Int J Mol Sci 2023; 24:16804. [PMID: 38069128 PMCID: PMC10871122 DOI: 10.3390/ijms242316804] [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: 11/04/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 12/18/2023] Open
Abstract
The title compounds were synthesized by the reaction of 5-oxo-1-(4-(phenylamino)phenyl)pyrrolidine-3-carbohydrazide with various aldehydes bearing aromatic and heterocyclic moieties and acetophenones, and their cytotoxicity was tested via MTT assay against human triple-negative breast cancer MDA-MB-231, human melanoma IGR39, human pancreatic carcinoma Panc-1, and prostate cancer cell line PPC-1. Furthermore, the selectivity of compounds towards cancer cells compared to fibroblasts was also investigated. Four compounds were identified as the most promising anticancer agents out of a series of pyrrolidinone-hydrazone derivatives bearing a diphenylamine moiety. These compounds were most selective against the prostate cancer cell line PPC-1 and the melanoma cell lines IGR39, with EC50 values in the range of 2.5-20.2 µM against these cell lines. In general, the compounds were less active against triple-negative breast cancer MDA-MB-231 cell line, and none of them showed an inhibitory effect on the migration of these cells. In the 'wound healing' assay, N'-((5-nitrothiophen-2-yl)methylene)-5-oxo-1-(4-(phenylamino)phenyl)pyrrolidine-3-carbohydrazide was identified as the most promising derivative that could be further developed as an antimetastatic agent. N'-(5-chloro- and N'-(3,4-dichlorobenzylidene)-5-oxo-1-(4-(phenylamino)phenyl)pyrrolidine-3-carbohydrazides most efficiently reduced the cell viability in IGR39 cell spheroids, while there was no effect of the investigated pyrrolidinone-hydrazone derivatives on PPC-1 3D cell cultures. Antioxidant activity determined via FRAP assay of N'-(1-(4-aminophenyl)ethylidene)-5-oxo-1-(4-(phenylamino)phenyl)pyrrolidine-3-carbohydrazide was 1.2 times higher than that of protocatechuic acid.
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Affiliation(s)
- Irma Zubrickė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, 50254 Kaunas, Lithuania; (I.Z.); (I.J.); (I.T.)
| | - Ilona Jonuškienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, 50254 Kaunas, Lithuania; (I.Z.); (I.J.); (I.T.)
| | - Kristina Kantminienė
- Department of Physical and Inorganic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, 50254 Kaunas, Lithuania
| | - Ingrida Tumosienė
- Department of Organic Chemistry, Kaunas University of Technology, Radvilėnų pl. 19, 50254 Kaunas, Lithuania; (I.Z.); (I.J.); (I.T.)
| | - Vilma Petrikaitė
- Laboratory of Drug Targets Histopathology, Institute of Cardiology, Lithuanian University of Health Sciences, Sukilėlių pr. 13, 50162 Kaunas, Lithuania
- Institute of Biotechnology, Life Sciences Center, Vilnius University, Saulėtekio al. 7, 10257 Vilnius, Lithuania
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Dos Santos Silva LY, da Silva Ramos A, Cavalcante DN, Kinupp VF, da Silva Rodrigues JV, Ventura BML, de Oliveira Mendes TA, Sanches EA, Campelo PH, de Araújo Bezerra J. Hibiscus acetosella: An Unconventional Alternative Edible Flower Rich in Bioactive Compounds. Molecules 2023; 28:4819. [PMID: 37375373 DOI: 10.3390/molecules28124819] [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: 05/15/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 06/29/2023] Open
Abstract
The interest in the consumption of edible flowers has increased since they represent a rich source of bioactive compounds, which are significantly beneficial to human health. The objective of this research was to access the bioactive compounds and antioxidant and cytotoxic properties of unconventional alternative edible flowers of Hibiscus acetosella Welw. Ex Hiern. The edible flowers presented pH value of 2.8 ± 0.00, soluble solids content of 3.4 ± 0.0 °Brix, high moisture content of about 91.8 ± 0.3%, carbohydrates (6.9 ± 1.2%), lipids (0.90 ± 0.17%), ashes (0.4 ± 0.0%), and not detectable protein. The evaluation of the scavenging activity of free radicals, such as 2,2-diphenyl-1-picryl-hydrazyl (DPPH) and 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), of the flower extract was better than the results observed for other edible flowers (507.8 ± 2.7 μM TE and 783.9 ± 30.8 μM TE, respectively) as well as the total phenolic composition (TPC) value (568.8 ± 0.8 mg GAE/g). These flowers are rich in organic acids and phenolic compounds, mainly myricetin, and quercetin derivatives, kaempferol, and anthocyanins. The extract showed no cytotoxicity for the cell lineages used, suggesting that the extract has no directly harmful effects to cells. The important bioactive compound identified in this study makes this flower especially relevant in the healthy food area due to its nutraceutical potential without showing cytotoxicity.
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Affiliation(s)
- Laila Yasmim Dos Santos Silva
- Analytical Center, Campus Manaus Center, Science and Technology of Amazonas, Manaus 69020-120, Brazil
- Federal Institute of Education, Science and Technology of Amazonas, Manaus 69020-120, Brazil
| | - Andrezza da Silva Ramos
- Analytical Center, Campus Manaus Center, Science and Technology of Amazonas, Manaus 69020-120, Brazil
- Federal Institute of Education, Science and Technology of Amazonas, Manaus 69020-120, Brazil
| | - Débora Nogueira Cavalcante
- Analytical Center, Campus Manaus Center, Science and Technology of Amazonas, Manaus 69020-120, Brazil
- Federal Institute of Education, Science and Technology of Amazonas, Manaus 69020-120, Brazil
| | - Valdely Ferreira Kinupp
- Federal Institute of Education, Science and Technology of Amazonas, Manaus 69020-120, Brazil
| | | | | | | | - Edgar Aparecido Sanches
- Laboratory of Nanostructured Polymers, Materials Physics Department, Federal University of Amazonas, Manaus 69067-005, Brazil
| | | | - Jaqueline de Araújo Bezerra
- Analytical Center, Campus Manaus Center, Science and Technology of Amazonas, Manaus 69020-120, Brazil
- Federal Institute of Education, Science and Technology of Amazonas, Manaus 69020-120, Brazil
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In Vitro and In Silico Studies to Assess Edible Flowers’ Antioxidant Activities. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12147331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The incorporation of edible flowers in the human diet and culinary preparations dates back to ancient times. Nowadays, edible flowers have gained great attention due to their health-promoting and nutritive effects and their widespread acceptance by consumers. Therefore, edible flowers are ideal candidates for use in the design and development of functional foods and dietary supplements, representing a new and promising trend in the food industry. Thus, the present study attempts to assess the potential of various edible flowers against oxidative stress by applying a combination of in vitro, in silico and spectroscopic techniques. Specifically, the spectroscopic profiles of edible flower extracts were evaluated using ATR-FTIR spectroscopy, while their total phenolic contents and antioxidant/antiradical activities were determined spectrophotometrically. The most abundant phytochemicals in the studied flowers were examined as enzyme inhibitors through molecular docking studies over targets that mediate antioxidant mechanisms in vivo. Based on the results, the red China rose followed by the orange Mexican marigold exhibited the highest TPCs and antioxidant activities. All samples showed the characteristic FTIR band of the skeletal vibration of phenolic aromatic rings. Phenolic compounds seem to exhibit antioxidant activity with respect to NADPH oxidase, myeloperoxidase (MP), cytochrome P450 and, to a lesser extent, xanthine oxidase (XO) enzymes.
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Zhang L, Ma J, Yang F, Li S, Ma W, Chang X, Yang L. Neuroprotective Effects of Quercetin on Ischemic Stroke: A Literature Review. Front Pharmacol 2022; 13:854249. [PMID: 35662707 PMCID: PMC9158527 DOI: 10.3389/fphar.2022.854249] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 04/28/2022] [Indexed: 12/15/2022] Open
Abstract
Ischemic stroke (IS) is characterized by high recurrence and disability; however, its therapies are very limited. As one of the effective methods of treating acute attacks of IS, intravenous thrombolysis has a clear time window. Quercetin, a flavonoid widely found in vegetables and fruits, inhibits immune cells from secreting inflammatory cytokines, thereby reducing platelet aggregation and limiting inflammatory thrombosis. In pre-clinical studies, it has been shown to exhibit neuroprotective effects in patients with ischemic brain injury. However, its specific mechanism of action remains unknown. Therefore, this review aims to use published data to elucidate the potential value of quercetin in patients with ischemic brain injury. This article also reviews the plant sources, pharmacological effects, and metabolic processes of quercetin in vivo, thus focusing on its mechanism in inhibiting immune cell activation and inflammatory thrombosis as well as promoting neuroprotection against ischemic brain injury.
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Affiliation(s)
- Leilei Zhang
- Xi'an Hospital of Traditional Chinese Medicine, Xi'an, China
| | - Jingying Ma
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Fan Yang
- Guang'anmen Hospital, Chinese Academy of Chinese Medical Sciences, Beijing, China
| | - Sishi Li
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Wangran Ma
- Shaanxi University of Chinese Medicine, Xianyang, China
| | - Xiang Chang
- Xi'an Hospital of Traditional Chinese Medicine, Xi'an, China
| | - Lin Yang
- Xi'an Hospital of Traditional Chinese Medicine, Xi'an, China
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