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Qin JC, Tuo CJ, Zhang KT, Liu CJ, Liu MY, Zhao Q, Zhang XM. Preparation and antibacterial activity of coronarin E derivatives. Nat Prod Res 2024; 38:1898-1908. [PMID: 37378495 DOI: 10.1080/14786419.2023.2228982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 06/10/2023] [Accepted: 06/20/2023] [Indexed: 06/29/2023]
Abstract
Coronarin E is a main diterpene ever isolated from Hedychium yunnanense. With the aim to enlarge its potential application, four butenolide derivatives (compounds 4a, 4b, 5a and 5b) were obtained from coronarin E via synthetic method, and their antibacterial effects were also evaluated. It is noteworthy that compounds 5a and 5b exhibited stronger antibacterial activities against most of the tested bacterial strains than ampicillin and kanamycin, two first- and second-line antimicrobials in clinical. For example, minimum inhibitory concentration (MIC) of 5a, 5b, ampicillin and kanamycin against Acinetobacter baumanii were 2, 1, 8 and 4 μg/mL, respectively, and MIC of the four compounds mentioned above against Klebsiella pneumonia were 1, 0.5, 16 and 4 μg/mL, respectively. The current studies not only enrich the structural diversity of diterpenes derived from Hedychium genus, but also provide potent candidates for the development of antibacterial medicines.
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Affiliation(s)
- Jie-Chen Qin
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
| | - Cheng-Jie Tuo
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
| | - Ke-Tao Zhang
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
| | - Chao-Jin Liu
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
| | - Meng-Yujie Liu
- Department of Pharmacy, Qilu Hospital of Shandong University, Jinan, Shandong, P. R. China
| | - Qing Zhao
- School of Chinese Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan, P. R. China
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Rijo P, Athanassopoulos CM, Carpinella MC. Editorial: Considering plant metabolites and their synthetic derivatives as candidates for the development of drugs against multidrug resistant (MDR) tumors. Front Pharmacol 2022; 13:1108252. [PMID: 36569312 PMCID: PMC9768599 DOI: 10.3389/fphar.2022.1108252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Affiliation(s)
- Patricia Rijo
- CBIOS—Universidade Lusófona Research Center for Biosciences & Health Technologies, Lisbon, Portugal,Faculty of Pharmacy, Instituto de Investigação do Medicamento (iMed.ULisboa), University of Lisbon, Lisbon, Portugal,*Correspondence: Patricia Rijo, ; Constantinos M. Athanassopoulos, ; María Cecilia Carpinella,
| | - Constantinos M. Athanassopoulos
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Patras, Patras, Greece,*Correspondence: Patricia Rijo, ; Constantinos M. Athanassopoulos, ; María Cecilia Carpinella,
| | - María Cecilia Carpinella
- Fine Chemical and Natural Products Laboratory, IRNASUS CONICET-UCC, School of Chemistry, Universidad Católica de Córdoba, Córdoba, Argentina,*Correspondence: Patricia Rijo, ; Constantinos M. Athanassopoulos, ; María Cecilia Carpinella,
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Saeed MEM, Yücer R, Dawood M, Hegazy MF, Drif A, Ooko E, Kadioglu O, Seo EJ, Kamounah FS, Titinchi SJ, Bachmeier B, Efferth T. In Silico and In Vitro Screening of 50 Curcumin Compounds as EGFR and NF-κB Inhibitors. Int J Mol Sci 2022; 23. [PMID: 35409325 DOI: 10.3390/ijms23073966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 02/05/2023] Open
Abstract
The improvement of cancer chemotherapy remains a major challenge, and thus new drugs are urgently required to develop new treatment regimes. Curcumin, a polyphenolic antioxidant derived from the rhizome of turmeric (Curcuma longa L.), has undergone extensive preclinical investigations and, thereby, displayed remarkable efficacy in vitro and in vivo against cancer and other disorders. However, pharmacological limitations of curcumin stimulated the synthesis of numerous novel curcumin analogs, which need to be evaluated for their therapeutic potential. In the present study, we calculated the binding affinities of 50 curcumin derivatives to known cancer-related target proteins of curcumin, i.e., epidermal growth factor receptor (EGFR) and nuclear factor κB (NF-κB) by using a molecular docking approach. The binding energies for EGFR were in a range of −12.12 (±0.21) to −7.34 (±0.07) kcal/mol and those for NF-κB ranged from −12.97 (±0.47) to −6.24 (±0.06) kcal/mol, indicating similar binding affinities of the curcumin compounds for both target proteins. The predicted receptor-ligand binding constants for EGFR and curcumin derivatives were in a range of 0.00013 (±0.00006) to 3.45 (±0.10) µM and for NF-κB in a range of 0.0004 (±0.0003) to 10.05 (±4.03) µM, indicating that the receptor-ligand binding was more stable for EGFR than for NF-κB. Twenty out of 50 curcumin compounds showed binding energies to NF-κB smaller than −10 kcal/mol, while curcumin as a lead compound revealed free binding energies of >−10 kcal/mol. Comparable data were obtained for EGFR: 15 out of 50 curcumin compounds were bound to EGFR with free binding energies of <−10 kcal/mol, while the binding affinity of curcumin itself was >−10 kcal/mol. This indicates that the derivatization of curcumin may indeed be a promising strategy to improve targe specificity and to obtain more effective anticancer drug candidates. The in silico results have been exemplarily validated using microscale thermophoresis. The bioactivity has been further investigated by using resazurin cell viability assay, lactate dehydrogenase assay, flow cytometric measurement of reactive oxygen species, and annexin V/propidium iodide assay. In conclusion, molecular docking represents a valuable approach to facilitate and speed up the identification of novel targeted curcumin-based drugs to treat cancer.
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Kriplani P, Guarve K. Recent Patents on Anti-Cancer Potential of Helenalin. Recent Pat Anticancer Drug Discov 2021; 15:132-142. [PMID: 32614752 DOI: 10.2174/1574892815666200702142601] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 05/08/2020] [Accepted: 05/15/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Arnica montana, containing helenalin as its principal active constituent, is the most widely used plant to treat various ailments. Recent studies indicate that Arnica and helenalin provide significant health benefits, including anti-inflammatory, neuroprotective, antioxidant, cholesterol-lowering, immunomodulatory, and most important, anti-cancer properties. OBJECTIVE The objective of the present study is to overview the recent patents of Arnica and its principal constituent helenalin, including new methods of isolation, and their use in the prevention of cancer and other ailments. METHODS Current prose and patents emphasizing the anti-cancer potential of helenalin and Arnica, incorporated as anti-inflammary agents in anti-cancer preparations, have been identified and reviewed with particular emphasis on their scientific impact and novelty. RESULTS Helenalin has shown its anti-cancer potential to treat multiple types of tumors, both in vitro and in vivo. It has also portrayed synergistic effects when given in combination with other anti- cancer drugs or natural compounds. New purification/isolation techniques are also developing with novel helenalin formulations and its synthetic derivatives have been developed to increase its solubility and bioavailability. CONCLUSION The promising anti-cancer potential of helenalin in various preclinical studies may open new avenues for therapeutic interventions in different tumors. Thus clinical trials validating its tumor suppressing and chemopreventive activities, particularly in conjunction with standard therapies, are immediately required.
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Affiliation(s)
- Priyanka Kriplani
- Department of Pharmaceutical Sciences, Guru Gobind Singh College of Pharmacy, Yamuna Nagar 135001, Haryana, India
| | - Kumar Guarve
- Department of Pharmaceutical Sciences, Guru Gobind Singh College of Pharmacy, Yamuna Nagar 135001, Haryana, India
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Lama-Muñoz A, Gómez-Carretero A, Rubio-Senent F, Bermúdez-Oria A, Maya I, Fernández-Bolaños JG, Vioque B, Fernández-Bolaños J. Inhibitory Effect of Olive Phenolic Compounds Isolated from Olive Oil By-Product on Melanosis of Shrimps. Antioxidants (Basel) 2021; 10:antiox10050728. [PMID: 34063093 PMCID: PMC8147989 DOI: 10.3390/antiox10050728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/27/2021] [Accepted: 04/30/2021] [Indexed: 11/16/2022] Open
Abstract
Melanosis is an unsolved problem of the crustacean industry and the cause of great loss of value. This study investigates the effect of two potent, natural antioxidants isolated from olive waste (hydroxytyrosol, HT and 3,4-dihydroxyphenylglycol, DHPG) and three novel HT-derivatives containing selenium and sulfur (dihydroxytyrosyl diselenide, N-hydroxytyrosyl selenourea, and N-hydroxytyrosyl thiourea) on the prevention of melanosis in Atlantic ditch shrimp (Palaemonetes varians) during refrigerated storage. These results clearly demonstrate the positive inhibitory effect of DHPG and dihydroxytyrosyl diselenide on delaying melanosis in vivo, although this effect was not dose dependent. The effect was associated with a concomitant-inhibitory effect on tyrosinase activity in vitro. To our knowledge, so far no studies on the prevention of melanosis have been conducted on this small specie of shrimp which is available in large quantities at any time of the year at low cost. Studies with these promising compounds could then be extended to other more economically important species with a greater guarantee of success.
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Affiliation(s)
- Antonio Lama-Muñoz
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Pablo Olavide University, Building 46, Ctra de Utrera km 1, 41013 Seville, Spain; (A.L.-M.); (F.R.-S.); (A.B.-O.); (B.V.)
| | - Antonio Gómez-Carretero
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, Profesor García González 1, 41012 Seville, Spain; (A.G.-C.); (I.M.); (J.G.F.-B.)
| | - Fátima Rubio-Senent
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Pablo Olavide University, Building 46, Ctra de Utrera km 1, 41013 Seville, Spain; (A.L.-M.); (F.R.-S.); (A.B.-O.); (B.V.)
| | - Alejandra Bermúdez-Oria
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Pablo Olavide University, Building 46, Ctra de Utrera km 1, 41013 Seville, Spain; (A.L.-M.); (F.R.-S.); (A.B.-O.); (B.V.)
| | - Inés Maya
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, Profesor García González 1, 41012 Seville, Spain; (A.G.-C.); (I.M.); (J.G.F.-B.)
| | - José G. Fernández-Bolaños
- Department of Organic Chemistry, Faculty of Chemistry, University of Seville, Profesor García González 1, 41012 Seville, Spain; (A.G.-C.); (I.M.); (J.G.F.-B.)
| | - Blanca Vioque
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Pablo Olavide University, Building 46, Ctra de Utrera km 1, 41013 Seville, Spain; (A.L.-M.); (F.R.-S.); (A.B.-O.); (B.V.)
| | - Juan Fernández-Bolaños
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Pablo Olavide University, Building 46, Ctra de Utrera km 1, 41013 Seville, Spain; (A.L.-M.); (F.R.-S.); (A.B.-O.); (B.V.)
- Correspondence:
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Varela MT, Fernandes JPS. Natural Products: Key Prototypes to Drug Discovery Against Neglected Diseases Caused by Trypanosomatids. Curr Med Chem 2020; 27:2133-2146. [PMID: 29714138 DOI: 10.2174/0929867325666180501102450] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 03/27/2018] [Accepted: 04/13/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND Neglected tropical diseases are a group of infections caused by microorganisms and viruses that affect mainly poor regions of the world. In addition, most available drugs are associated with long periods of treatment and high toxicity which limits the application and patient compliance. Investment in research and development is not seen as an attractive deal by the pharmaceutical industry since the final product must ideally be cheap, not returning the amount invested. Natural products have always been an important source for bioactive compounds and are advantageous over synthetic compounds when considering the unique structural variety and biological activities. On the other hand, isolation difficulties and low yields, environmental impact and high cost usually limit their application as drug per se. OBJECTIVE In this review, the use of natural products as prototypes for the semi-synthesis or total synthesis, as well as natural products as promising hits is covered, specifically regarding compounds with activities against trypanosomatids such as Trypanosoma spp. and Leishmania spp. METHODS Selected reports from literature with this approach were retrieved. CONCLUSION As summary, it can be concluded that natural products are an underestimated source for designing novel agents against these parasites.
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Affiliation(s)
- Marina Themoteo Varela
- Department of Pharmaceutical Sciences, Universidade Federal de São Paulo, Diadema-SP, Brazil
| | - João Paulo S Fernandes
- Department of Pharmaceutical Sciences, Universidade Federal de São Paulo, Diadema-SP, Brazil
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da Nóbrega FR, Ozdemir O, Nascimento Sousa SCS, Barboza JN, Turkez H, de Sousa DP. Piplartine Analogues and Cytotoxic Evaluation against Glioblastoma. Molecules 2018; 23:E1382. [PMID: 29890617 PMCID: PMC6099735 DOI: 10.3390/molecules23061382] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/14/2018] [Accepted: 05/14/2018] [Indexed: 12/14/2022] Open
Abstract
Piplartine (1) is an alkamide extracted from plants of the genus Piper which shows several pharmacological properties, including antitumor activity. To improve this activity, a series of analogues based on 1 have been synthesized by esterification and amidation using the 3,4,5-trimethoxycinnamic acid-like starting material. During the study, the moieties 3-(3,4,5-trimethoxyphenyl)acrylate and 3-(3,4,5-trimethoxyphenyl)acrylamide were maintained on esters and amides respectively. Meanwhile, functional changes were exploited, and it was revealed that the presence of two aromatic rings in the side-chain was important to improve the cytotoxic activity against the U87MG cell line, such as the compound (E)-benzhydryl 3-(3,4,5-trimethoxyphenyl)acrylate (10), an ester that exhibited strong cytotoxicity and a similar level of potency to that of paclitaxel, a positive control. Compound 10 had a marked concentration-dependent inhibitory effect on the viability of the U87MG cell line with apoptotic and oxidative processes, showing good potential for altering main molecular pathways to prevent tumor development. Moreover, it has strong bioavailability with non-genotoxic and non-cytotoxic properties on human blood cells. In conclusion, the findings of the present study demonstrated that compound 10 is a promising agent that may find applications combatting diseases associated with oxidative stress and as a prototype for the development of novel drugs used in the treatment of glioblastoma.
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Affiliation(s)
- Flávio Rogério da Nóbrega
- Laboratory of Pharmaceutical Chemistry, Universidade Federal da Paraíba, João Pessoa 58051-085, Brazil.
| | - Ozlem Ozdemir
- Department of Molecular Biology and Genetics, Erzurum Technical University, Erzurum 25240, Turkey.
| | | | - Joice Nascimento Barboza
- Laboratory of Pharmaceutical Chemistry, Universidade Federal da Paraíba, João Pessoa 58051-085, Brazil.
| | - Hasan Turkez
- Department of Molecular Biology and Genetics, Erzurum Technical University, Erzurum 25240, Turkey.
- Department of Pharmacy, "G. d'Annunzio" University of Chieti-Pescara, Via dei Vestini 31, 66013 Chieti Scalo, CH, Italy.
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de Azeredo CMO, Ávila EP, Pinheiro DLJ, Amarante GW, Soares MJ. Biological activity of the azlactone derivative EPA-35 against Trypanosoma cruzi. FEMS Microbiol Lett 2017; 364:fnx020. [PMID: 28130370 DOI: 10.1093/femsle/fnx020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 01/24/2017] [Indexed: 11/14/2022] Open
Abstract
Chagas disease, caused by Trypanosoma cruzi, affects six to seven million people worldwide. Treatment is based on benznidazole, producing several side effects and debatable efficacy, highlighting the need for new alternative drugs. We investigated the activity of four C-4 functionalized azlactone derivatives (EPA-27, EPA-35, EPA-63 and EPA-91) as potential T. cruzi inhibitors. Screening with epimastigotes indicated EPA-35 as the best compound (IC50/24 h: 33 μM). This compound was 14.1 times more potent against intracellular amastigotes (IC50/24 h: 2.34 μM). Treatment of infected Vero cells for 72 h (up to 30 μM EPA-35) resulted in a dose-dependent decrease in number of trypomastigotes and amastigotes released in the supernatant, but the amastigote/trypomastigote ratio remained constant, indicating that amastigote growth was disturbed, but cell differentiation was unaffected. Analysis of treated epimastigotes by flow cytometry indicated that the plasma membrane remained intact, but there was a significant decrease in mitochondrial membrane potential. The pattern of cell distribution in the cell cycle stages (G1, G2, M) was unaltered in treated epimastigotes, indicating a trypanocidal rather than a trypanostatic activity. Scanning electron microscopy and flow cytometry showed epimastigotes with a round shape and decrease in cell size. Taken together, our data indicate that the EPA-35 is effective against T. cruzi. Synthetic transformation of EPA-35 into other derivatives may provide promising compounds for further evaluation against this parasite.
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Affiliation(s)
| | - Eloah Pereira Ávila
- Department of Chemistry, Federal University of Juiz de Fora, 36036-900 Juiz de Fora, MG, Brazil
| | | | | | - Maurilio José Soares
- Laboratory of Cell Biology, Carlos Chagas Institute/Fiocruz-PR, 81350-010 Curitiba-PR, Brazil
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Liang C, Ju W, Pei S, Tang Y, Xiao Y. Pharmacological Activities and Synthesis of Esculetin and Its Derivatives: A Mini-Review. Molecules 2017; 22:E387. [PMID: 28257115 PMCID: PMC6155195 DOI: 10.3390/molecules22030387] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 02/20/2017] [Accepted: 02/24/2017] [Indexed: 11/17/2022] Open
Abstract
Esculetin, synonymous with 6,7-dihydroxycoumarin, is the main active ingredient of the traditional Chinese medicine Cortex Fraxini. The twig skin or trunk bark of Cortex Fraxini are used by herb doctors as a mild, bitter liver and gallbladder meridians' nontoxic drug as well as dietary supplement. Recently, with a variety of novel esculetin derivatives being reported, the molecular mechanism research as well as clinical application of Cortex Fraxini and esculetin are becoming more attractive. This mini-review will consolidate what is known about the biological activities, the mechanism of esculetin and its synthetic derivatives over the past decade in addition to providing a brief synopsis of the properties of esculetin.
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Affiliation(s)
- Chengyuan Liang
- Faculty of Pharmacy, Shaanxi University of Science & Technology, 6 Xuefu Road, Xi'an 710021, China.
| | - Weihui Ju
- Faculty of Pharmacy, Shaanxi University of Science & Technology, 6 Xuefu Road, Xi'an 710021, China.
| | - Shaomeng Pei
- Faculty of Pharmacy, Shaanxi University of Science & Technology, 6 Xuefu Road, Xi'an 710021, China.
| | - Yonghong Tang
- Xi'an Taikomed Pharmaceutical technology Co., LTD, Xi'an 710077, China.
| | - Yadong Xiao
- Faculty of Finance and Economics, Guangzhou Vocational College of Science and Technology, Guangzhou 510550, China.
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