1
|
Hussain MK, Khatoon S, Khan MF, Akhtar MS, Ahamad S, Saquib M. Coumarins as versatile therapeutic phytomolecules: A systematic review. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 134:155972. [PMID: 39265442 DOI: 10.1016/j.phymed.2024.155972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/23/2024] [Accepted: 07/11/2024] [Indexed: 09/14/2024]
Abstract
BACKGROUND Coumarins, abundantly distributed in a plethora of biologically active compounds, serve as a fundamental motif in numerous natural products, drugs, and therapeutic leads. Despite their small size, they exhibit a diverse range of biological activities, intriguing researchers with their immense pharmacological potential. PURPOSE This study consolidates the evidence regarding the essential role of coumarins in modern drug discovery, exploring their broad-spectrum pharmaceutical effects, structural versatility, and mechanisms of action across various domains. METHODS For literature search, we utilized PubMed, Google scholar, and SciFinder databases. Keyword and keyword combinations such as "coumarins", "natural coumarins", "specific natural coumarins for particular diseases", and "therapeutic effects" were employed to retrieve relevant studies. The search encompassed articles published between 2005 and 2023. Selection criteria included studies reporting on the pharmacological activities of natural coumarins against various diseases. RESULTS The results highlight the therapeutic potential of natural coumarins against various diseases, demonstrating anti-cancer, anti-oxidant, and anti-inflammatory activities. They also act as monoamine oxidase inhibitors and phosphodiesterase inhibitors, and as anti-thrombotic, anti-diabetic, and hepatoprotective agents. They also show efficacy against diabetic nephropathy, neurodegenerative diseases, microbial infections and many other diseases. CONCLUSION This review underscores the significant role of natural coumarins in medicinal chemistry and drug discovery. Their diverse biological activities and structural versatility make them promising therapeutic agents. This study serves as a catalyst for further research in the field, aiming to address emerging challenges and opportunities in drug development.
Collapse
Affiliation(s)
- Mohd Kamil Hussain
- Department of Chemistry, Govt. Raza P.G. College, Rampur 244901, M.J.P Rohil Khand University, Bareilly, India.
| | | | - Mohammad Faheem Khan
- Department of Biotechnology, Era's Lucknow Medical College, Era University, Lucknow 226003, India
| | - Mohd Sayeed Akhtar
- Department of Botany, Gandhi Faiz-e-Aam College, Shahjahanpur 242001, India
| | - Shakir Ahamad
- Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Mohammad Saquib
- Department of Chemistry, University of Allahabad, Prayagraj (Allahabad) 211002, India; Department of Chemistry, G. R. P. B. Degree College, P. R. S. University, Prayagraj (Allahabad) 211010, India.
| |
Collapse
|
2
|
Scopel JM, Medeiros-Neves B, Teixeira HF, Brazil NT, Bordignon SAL, Diz FM, Morrone FB, Almeida RN, Cassel E, von Poser GL, Vargas RMF. Supercritical Carbon Dioxide Extraction of Coumarins from the Aerial Parts of Pterocaulon polystachyum. Molecules 2024; 29:2741. [PMID: 38930806 PMCID: PMC11205997 DOI: 10.3390/molecules29122741] [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: 04/30/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
Pterocaulon polystachyum is a species of pharmacological interest for providing volatile and non-volatile extracts with antifungal and amebicidal properties. The biological activities of non-volatile extracts may be related to the presence of coumarins, a promising group of secondary metabolites. In the present study, leaves and inflorescences previously used for the extraction of essential oils instead of being disposed of were subjected to extraction with supercritical CO2 after pretreatment with microwaves. An experimental design was followed to seek the best extraction condition with the objective function being the maximum total extract. Pressure and temperature were statistically significant factors, and the optimal extraction condition was 240 bar, 60 °C, and pretreatment at 30 °C. The applied mathematical models showed good adherence to the experimental data. The extracts obtained by supercritical CO2 were analyzed and the presence of coumarins was confirmed. The extract investigated for cytotoxicity against bladder tumor cells (T24) exhibited significant reduction in cell viability at concentrations between 6 and 12 μg/mL. The introduction of green technology, supercritical extraction, in the exploration of P. polystachyum as a source of coumarins represents a paradigm shift with regard to previous studies carried out with this species, which used organic solvents. Furthermore, the concept of circular bioeconomy was applied, i.e., the raw material used was the residue of a steam-distillation process. Therefore, the approach used here is in line with the sustainable exploitation of native plants to obtain extracts rich in coumarins with cytotoxic potential against cancer cells.
Collapse
Affiliation(s)
- Júlia M. Scopel
- Unit Operations Laboratory (LOPE), School of Technology, Pontifical Catholic University of Rio Grande do Sul, Av Ipiranga 6681, Building 30, Block F, Room 208, Porto Alegre 90619-900, RS, Brazil; (J.M.S.); (R.N.A.); (E.C.)
| | - Bruna Medeiros-Neves
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre 90010-150, RS, Brazil; (B.M.-N.); (H.F.T.); (N.T.B.); (S.A.L.B.); (G.L.v.P.)
| | - Helder Ferreira Teixeira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre 90010-150, RS, Brazil; (B.M.-N.); (H.F.T.); (N.T.B.); (S.A.L.B.); (G.L.v.P.)
| | - Nathalya T. Brazil
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre 90010-150, RS, Brazil; (B.M.-N.); (H.F.T.); (N.T.B.); (S.A.L.B.); (G.L.v.P.)
| | - Sérgio A. L. Bordignon
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre 90010-150, RS, Brazil; (B.M.-N.); (H.F.T.); (N.T.B.); (S.A.L.B.); (G.L.v.P.)
| | - Fernando Mendonça Diz
- Programa de Pós-Graduação em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre 90619-900, RS, Brazil; (F.M.D.); (F.B.M.)
| | - Fernanda Bueno Morrone
- Programa de Pós-Graduação em Medicina e Ciências da Saúde, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre 90619-900, RS, Brazil; (F.M.D.); (F.B.M.)
| | - Rafael N. Almeida
- Unit Operations Laboratory (LOPE), School of Technology, Pontifical Catholic University of Rio Grande do Sul, Av Ipiranga 6681, Building 30, Block F, Room 208, Porto Alegre 90619-900, RS, Brazil; (J.M.S.); (R.N.A.); (E.C.)
| | - Eduardo Cassel
- Unit Operations Laboratory (LOPE), School of Technology, Pontifical Catholic University of Rio Grande do Sul, Av Ipiranga 6681, Building 30, Block F, Room 208, Porto Alegre 90619-900, RS, Brazil; (J.M.S.); (R.N.A.); (E.C.)
| | - Gilsane L. von Poser
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre 90010-150, RS, Brazil; (B.M.-N.); (H.F.T.); (N.T.B.); (S.A.L.B.); (G.L.v.P.)
| | - Rubem M. F. Vargas
- Unit Operations Laboratory (LOPE), School of Technology, Pontifical Catholic University of Rio Grande do Sul, Av Ipiranga 6681, Building 30, Block F, Room 208, Porto Alegre 90619-900, RS, Brazil; (J.M.S.); (R.N.A.); (E.C.)
| |
Collapse
|
3
|
Zeki NM, Mustafa YF. Natural linear coumarin-heterocyclic conjugates: A review of their roles in phytotherapy. Fitoterapia 2024; 175:105929. [PMID: 38548026 DOI: 10.1016/j.fitote.2024.105929] [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: 12/15/2023] [Revised: 03/17/2024] [Accepted: 03/25/2024] [Indexed: 05/26/2024]
Abstract
Heterocycle conjugates provide a fresh investigative scope to find novel molecules with enhanced phytotherapeutic characteristics. Coumarin-based products are widely used in the synthesis of several compounds with biological and medicinal properties since they are naturally occurring heterocycles with a broad dispersion. The investigation of coumarin-based phytochemicals with annulated heterocyclic rings is a promising approach to discovering novel conjugates with significant phytotherapeutic attributes. Due to the applicable coumarin extraction processes, a range of linear coumarin-heterocyclic conjugates were isolated from different natural resources and exhibited remarkable therapeutic efficacy. This review highlights the phytotherapeutic potential and origins of various natural linear coumarin-heterocyclic conjugates. We searched several databases, including Science Direct, Web of Science, Springer, Google Scholar, and PubMed. After sieving, we ultimately identified and included 118 pertinent studies published between 2000 and the middle of 2023. This will inspire medicinal chemists with extremely insightful ideas for designing and synthesizing therapeutically active lead compounds in the future that are built on the pharmacophores of coumarin-heterocyclic conjugates and have significant therapeutic attributes.
Collapse
Affiliation(s)
- Nameer Mazin Zeki
- Department of Pharmacology, College of Medicine, Ninevah University, Mosul, Iraq
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, Iraq.
| |
Collapse
|
4
|
Lamara KO, Makhloufi-Chebli M, Benazzouz-Touami A, Terrachet-Bouaziz S, Hamdi N, Silva AM, Behr JB. Selectivity control in the reaction between 2-hydroxyarylaldehydes and 4-hydroxycoumarin. Antioxidant activities and computational studies of the formed products. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
5
|
Medeiros-Neves B, Nemitz MC, Brazil NT, Schuh RS, Steppe M, von Poser GL, Teixeira HF. Determination of Coumarins from Pterocaulon balansae by an Ultra-Fast Liquid Chromatography Method in Topical Applications. ACTA ACUST UNITED AC 2021. [DOI: 10.1007/s43450-020-00115-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
6
|
Ebrahimi M, Abdolmohammadi S, Kojoori RK. An Efficient Synthesis of Some New Chromene Derivatives Catalyzed by Ag2Cr2O7 Nanoparticles. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1866034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mitra Ebrahimi
- Department of Chemistry, East Tehran Branch, Islamic Azad University, Tehran, Iran
| | | | - Reza Kia Kojoori
- Department of Chemistry, East Tehran Branch, Islamic Azad University, Tehran, Iran
| |
Collapse
|
7
|
Medeiros-Neves B, Teixeira HF, von Poser GL. The genus Pterocaulon (Asteraceae) - A review on traditional medicinal uses, chemical constituents and biological properties. JOURNAL OF ETHNOPHARMACOLOGY 2018; 224:451-464. [PMID: 29913300 DOI: 10.1016/j.jep.2018.06.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 06/13/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Species of the genus Pterocaulon (Asteraceae) are used in different parts of the world for treating skin and liver diseases, as well as disorders of the respiratory system, among others. AIM OF THE STUDY This review aims to discuss the present state of the art concerning the ethnobotanical uses, secondary metabolites and biological effects of Pterocaulon species and their chemical components. MATERIALS AND METHODS The available information on the genus Pterocaulon was gathered from scientific databases (Web of Science, Pubmed, ScienceDirect, Scopus, ChemSpider, SciFinder ACS Publications, Wiley Online Library). Information was also obtained from local publications, M.Sc. and Ph.D. dissertations. All studies on the ethnobotany, phytochemistry, pharmacology and toxicology of the plants until December 2017 were included in this review. RESULTS Approximately 40 coumarins and 30 flavonoids have been isolated from Pterocaulon species. Coumarins have been considered the chemotaxonomic markers in the genus and the most active components. Pharmacological studies carried out with extracts and isolated compounds revealed in vitro bioactivities that include antifungal, antiviral, and cytotoxicity. Most of the pharmacological investigations were not correlated with traditional uses of the plants. CONCLUSIONS Pterocaulon species, a rich source of coumarins, have great ethnomedical potential. Nevertheless, further studies into the pharmacological activities are necessary since none of the purported effects of these plants was fully assessed. In-depth research regarding the toxicity are also required to ensure the safety of these medicinal plants.
Collapse
Affiliation(s)
- Bruna Medeiros-Neves
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal do Rio Grande do Sul, Avenida Ipiranga, 2752 Porto Alegre, RS, Brazil
| | - Helder Ferreira Teixeira
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal do Rio Grande do Sul, Avenida Ipiranga, 2752 Porto Alegre, RS, Brazil
| | - Gilsane Lino von Poser
- Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal do Rio Grande do Sul, Avenida Ipiranga, 2752 Porto Alegre, RS, Brazil.
| |
Collapse
|
8
|
Hariprasad KS, Anand A, Rathod BB, Zehra A, Tiwari AK, Prakasham RS, Raju BC. Neoteric Synthesis and Biological Activities of Chromenopyrazolones, Tosylchromenopyrazolones, Benzoylcoumarins. ChemistrySelect 2017. [DOI: 10.1002/slct.201700587] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Kurma Siva Hariprasad
- Natural Products Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
- AcSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
| | - Ajay Anand
- Medicinal Chemistry & Pharmacology Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
| | - Balaji Baburao Rathod
- Bio-engineering and Environmental Sciences; CSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
| | - Amtul Zehra
- Medicinal Chemistry & Pharmacology Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
| | - Ashok Kumar Tiwari
- Medicinal Chemistry & Pharmacology Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
| | - Reddy Shetty Prakasham
- Bio-engineering and Environmental Sciences; CSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
| | - Bhimapaka China Raju
- Natural Products Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
- AcSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
| |
Collapse
|
9
|
Torres FC, Medeiros-Neves B, Ferreira Teixeira H, Kawanoa D, Eifler-Lima VL, Cassel E, Vargas RMF, von Poser GL. Supercritical CO 2 extraction as a selective method for the obtainment of coumarins from Pterocaulon balansae (Asteraceae). J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
10
|
Shi D, Lin W, Zheng Y, Wang Y. An Efficient Synthesis of Functionalized Chromeno[4,3-d]pyrazolo[3,4-b]pyridine Derivatives. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13567] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
11
|
Jin PP, Liu XC, Liu DQ, Huang ZB, Shi DQ. An Efficient Synthesis of Chromeno[4,3- d]isoxazolo[5,4- b]pyridin-6-one Derivatives. J Heterocycl Chem 2015. [DOI: 10.1002/jhet.2255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Pei-Pei Jin
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Xue-Cheng Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - De-Qi Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 China
| |
Collapse
|
12
|
Quantification of Coumarins in Aqueous Extract of Pterocaulon balansae (Asteraceae) and Characterization of a New Compound. Molecules 2015; 20:18083-94. [PMID: 26445037 PMCID: PMC6331981 DOI: 10.3390/molecules201018083] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 09/16/2015] [Accepted: 09/17/2015] [Indexed: 11/17/2022] Open
Abstract
Plants from the genus Pterocaulon are popularly used as antifungal and wound-healing agents. Such activities have been related to coumarins, which are abundant in those plants. Coumarins are soluble in organic solvents, such as hexane and dichloromethane, and some of them are also soluble in hot water. Considering that infusion and decoctions of these plants are used in traditional medicine, the aim of this study was to identify and quantify the coumarins in the aqueous extract of Pterocaulon balansae. The aqueous extract was obtained by dynamic maceration and the compounds were characterized by UPLC-UV-MS analysis. A new coumarin and 5-methoxy-6,7-methylenedioxycoumarin, used for validation of the analytical HPLC method were obtained by partition of the aqueous extract with n-hexane. The HPLC method validated was linear, specific, and precise. Seven coumarins were characterized in the aqueous extract in a range of 0.584-54 mg/g of dry plant material. The main compound, 5,6-dimethoxy-7-(3'-methyl-2',3'-dihydroxybutyloxy)coumarin, is described for the first time in P. balansae together with a new compound, 5,6-dimethoxy-7-(2',3'-epoxy-3'-methylbutyloxy)coumarin.
Collapse
|
13
|
El-Remaily MAEAAA. Bismuth triflate: A highly efficient catalyst for the synthesis of bio-active coumarin compounds via one-pot multi-component reaction. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(14)60308-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
14
|
Semenov VV, Semenova MN. Polyalkoxyflavonoids as inhibitors of cell division. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4449] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
15
|
Arivazhagan M, Kavitha R, Subhasini VP. Spectroscopic and quantum chemical electronic structure investigations of 3,4-dihydrocoumarin and 3-methylcoumarin. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 130:502-515. [PMID: 24813279 DOI: 10.1016/j.saa.2014.04.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 03/29/2014] [Accepted: 04/01/2014] [Indexed: 06/03/2023]
Abstract
A complete vibrational analysis of 3,4-dihydrocoumarin and 3-methylcoumarin have been performed according to SQM force field method based on ab initio and DFT calculation 6-311++G(d,p) basis set and their frequencies are compared. The influences of carbon-oxygen bond and methyl group to the vibrational frequencies of the title compounds have been discussed. The pronounced decrease of the lone pair orbital occupancy and the molecular stabilization energy show the hyperconjugation interaction from the NBO analysis. Calculations of molecular orbital geometry show that the visible absorption maxima of DHC and 3MC correspond to the electron transition between frontier orbitals such as translation from HOMO to LUMO. Gauge-including atomic orbital (GIAO) 1H and 13C chemical shift calculations have been calculated. Area of high, neutral and low electrostatic potential is determined for DHC and 3MC.
Collapse
Affiliation(s)
- M Arivazhagan
- Department of Physics, A.A. Government Arts College, Pulivalam Road, Musiri 621 201, India.
| | - R Kavitha
- Department of Physics, Saranathan College of Engineering, Trichy 620 012, India
| | - V P Subhasini
- Department of Physics, Jeppiaar Engineering College, Chennai 600 119, India
| |
Collapse
|
16
|
Liu XC, Lin W, Wang HY, Huang ZB, Shi DQ. Improved and Efficient Synthesis of Chromeno[4,3-d]pyrazolo [3,4-b]pyridin-6(3H)-ones and Their Fluorescence Properties. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.2104] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Xue-Cheng Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Wei Lin
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Hui-Yan Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| |
Collapse
|
17
|
Pharmacodynamic study of the 7,8-dihydroxy-4-methylcoumarin-induced selective cytotoxicity toward U-937 leukemic cells versus mature monocytes: cytoplasmic p21(Cip1/WAF1) as resistance factor. Biochem Pharmacol 2013; 86:210-21. [PMID: 23665351 DOI: 10.1016/j.bcp.2013.04.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Revised: 04/20/2013] [Accepted: 04/23/2013] [Indexed: 01/04/2023]
Abstract
The development of tumor-selective drugs with low systemic toxicity has always been a major challenge in cancer treatment. Our group previously identified the 7,8-dihydroxy-4-methylcoumarin (DHMC) as a potential chemotherapeutic agent due to its potent, selective anti-proliferative and apoptosis-inducing effects on several cancer cell lines over peripheral blood mononuclear cells. However, there are still no published reports that can explain such selectivity of action. Herein, we addressed this question by using the U-937 promonocytic leukemia cell line, which can be forced to differentiate into a monocyte-like phenotype in vitro. U-937 cells differentiation is dependent on the nuclear expression of p21(Cip1/WAF1), a protein that is absent in immature U-937 cells but present in both the nucleus and the cytoplasm of normal DHMC-resistant monocytes. Considering that induction of differentiation rendered U-937 cells resistant to DHMC, we evaluated the possible causal role of cytoplasmic p21(Cip1/WAF1) in the onset of such resistance by employing U-937 cells stably transfected with a ZnCl2-inducible p21(Cip1/WAF1) variant lacking the nuclear localization signal (U-937/CB6-ΔNLS-p21 cells). Expression of cytoplasmic p21(Cip1/WAF1) did not induce differentiation of the cells but turned them resistant to DHMC through inhibition of JNK, a crucial mediator of DHMC-induced apoptosis in U-937 cells. Sub-acute toxicity evaluation of DHMC in Balb/c mice indicated that DHMC administered intraperitoneally at doses up to 100mg/kg induced no systemic damage. Collectively, our results explain for the first time the selective cytotoxicity of DHMC for tumor cells over normal monocytes, and encourage further in vivo studies on this compound as potential anti-leukemic agent.
Collapse
|
18
|
Tsyganov DV, Chernysheva NB, Salamandra LK, Konyushkin LD, Atamanenko OP, Semenova MN, Semenov VV. Synthesis of Polyalkoxy-3-(4-Methoxyphenyl)Coumarins with Antimitotic Activity from Plant Allylpolyalkoxybenzenes. MENDELEEV COMMUNICATIONS 2013. [DOI: 10.1016/j.mencom.2013.05.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
19
|
Selective cytotoxicity and apoptosis induction in glioma cell lines by 5-oxygenated-6,7-methylenedioxycoumarins from Pterocaulon species. Eur J Med Chem 2012; 57:268-74. [DOI: 10.1016/j.ejmech.2012.09.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 08/18/2012] [Accepted: 09/05/2012] [Indexed: 11/19/2022]
|
20
|
Vázquez R, Riveiro ME, Vermeulen M, Alonso E, Mondillo C, Facorro G, Piehl L, Gómez N, Moglioni A, Fernández N, Baldi A, Shayo C, Davio C. Structure-anti-leukemic activity relationship study of ortho-dihydroxycoumarins in U-937 cells: key role of the δ-lactone ring in determining differentiation-inducing potency and selective pro-apoptotic action. Bioorg Med Chem 2012; 20:5537-49. [PMID: 22925447 DOI: 10.1016/j.bmc.2012.07.043] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Revised: 07/08/2012] [Accepted: 07/16/2012] [Indexed: 01/26/2023]
Abstract
Previous studies indicated the need of at least one phenolic hydroxyl group in the coumarin core for induction of cytotoxicity in different cell lines. Herein, we present an exhaustive structure-activity relationship study including ortho-dihydroxycoumarins (o-DHC) derivatives, cinnamic acid derivatives (as open-chain coumarin analogues) and 1,2-pyrones (representative of the δ-lactone ring of the coumarin core), carried out to further identify the structural features of o-DHC required to induce leukemic cell differentiation and apoptosis in U-937 cells. Our results show for the first time that the δ-lactone ring positively influences the aforementioned biological effects, by conferring greater potency to compounds with an intact coumarin nucleus. Most tellingly, we reveal herein the crucial role of this molecular portion in determining the selective toxicity that o-DHC show for leukemic cells over normal blood cells. From a pharmacological perspective, our findings point out that o-DHC may be useful prototypes for the development of novel chemotherapeutic agents.
Collapse
Affiliation(s)
- Ramiro Vázquez
- Laboratorio de Patología y Farmacología Molecular, Instituto de Biología y Medicina Experimental (IBYME)-CONICET, Vuelta de Obligado 2490 (C1428ADN), Buenos Aires, Argentina; Cátedra de Química Medicinal, Facultad de Farmacia y Bioquímica-UBA, Junín 954 (C1113AAD), Buenos Aires, Argentina.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Dugo P, Russo M, Sarò M, Carnovale C, Bonaccorsi I, Mondello L. Multidimensional liquid chromatography for the determination of chiral coumarins and furocoumarins in Citrus
essential oils. J Sep Sci 2012; 35:1828-36. [DOI: 10.1002/jssc.201200078] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Paola Dugo
- Dipartimento Farmaco-chimico; University of Messina; Messina Italy
- University Campus Bio-Medico; Rome Italy
| | - Marina Russo
- Dipartimento Farmaco-chimico; University of Messina; Messina Italy
| | | | | | - Ivana Bonaccorsi
- Dipartimento Farmaco-chimico; University of Messina; Messina Italy
| | - Luigi Mondello
- Dipartimento Farmaco-chimico; University of Messina; Messina Italy
- University Campus Bio-Medico; Rome Italy
| |
Collapse
|
22
|
Vázquez R, Riveiro ME, Vermeulen M, Mondillo C, Coombes PH, Crouch NR, Ismail F, Mulholland DA, Baldi A, Shayo C, Davio C. Toddaculin, a natural coumarin from Toddalia asiatica, induces differentiation and apoptosis in U-937 leukemic cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2012; 19:737-746. [PMID: 22537907 DOI: 10.1016/j.phymed.2012.03.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 02/12/2012] [Accepted: 03/09/2012] [Indexed: 05/31/2023]
Abstract
Chemotherapeutics represent the main approach for the treatment of leukemia. However, the occurrence of adverse side effects and the complete lack of effectiveness in some cases make it necessary to develop new drugs. As part of our screening program to evaluate the potential chemotherapeutic effect of natural coumarins, we investigated the anti-leukemic activities of a series of six prenylated coumarins isolated from the stem bark of Toddalia asiatica (Rutaceae). Among these, 6-(3-methyl-2-butenyl)-5,7-dimethoxycoumarin (toddaculin) displayed the most potent cytotoxic and anti-proliferative effects in U-937 cells. To determine whether these effects resulted from induction of cell death or differentiation, we further evaluated the expression of several apoptosis and maturation markers. Interestingly, while toddaculin at 250 μM was able to induce apoptosis in U-937 cells, involving decreased phosphorylation levels of ERK and Akt, 50 μM toddaculin exerted differentiating effects, inducing both the capacity of U-937 cells to reduce NBT and the expression of differentiation markers CD88 and CD11b, but no change in p-Akt or p-ERK levels. Taken together, these findings indicate that toddaculin displays a dual effect as a cell differentiating agent and apoptosis inducer in U-937 cells, suggesting it may serve as a pharmacological prototype for the development of novel anti-leukemic agents.
Collapse
Affiliation(s)
- Ramiro Vázquez
- Laboratorio de Patología y Farmacología Molecular, Instituto de Biología y Medicina Experimental, CONICET, Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
4-Chloro-3-(trifluoroacetyl)- and 4-chloro-3-(methoxalyl)coumarins as novel and efficient building blocks for the regioselective synthesis of 3,4-fused coumarins. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
24
|
Menichini F, Tundis R, Loizzo MR, Bonesi M, Provenzano E, de Cindio B, Menichini F. In vitro photo-induced cytotoxic activity of Citrus bergamia and C. medica L. cv. Diamante peel essential oils and identified active coumarins. PHARMACEUTICAL BIOLOGY 2010; 48:1059-65. [PMID: 20690896 DOI: 10.3109/13880200903486636] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
CONTEXT The search for innovative therapeutic approaches is gaining more interest in clinical oncology. OBJECTIVE In the present investigation we reported the chemical profile and the photo-induced cytotoxic activity of two endemic Calabrian Citrus species (Rutaceae): Citrus bergamia Risso & Poit. and Citrus medica L. cv. Diamante. MATERIALS AND METHODS Essential oils were obtained by hydrodistillation and analyzed by GC and GC/MS. In order to evaluate the cytotoxic activity two melanoma models, such as amelanotic melanoma C32 and malignant melanoma A375, were used. RESULTS The essential oil of C. bergamia was characterized by limonene, linalyl acetate, gamma-terpinene, linalool and beta-pinene as major components. The most abundant compounds of C. medica cv. Diamante oil were limonene, gamma-terpinene, citral, geranial, beta-pinene and alpha-pinene. Two coumarins, bergapten and citropten, were also identified in C. bergamia and C. medica cv. Diamante, respectively and tested for biological activity. Both C. bergamia and C. medica cv. Diamante oils exhibited a selective interesting activity against the A375 cell line with IC(50) values of 79.3 and 89.1 microg/mL, respectively, after 100 min exposure to UV irradiation. The strong antiproliferative activity demonstrated with bergapten (IC(50) value of 71.3 microg/mL after 20 min of irradiation) was not found with citropten. DISCUSSION AND CONCLUSION Our study suggested that UV irradiation is effective in activating essential oils and in particular bergapten. This phototoxicity may be considered as a treatment option in some cases of lentigo maligna or lentigo maligna melanoma.
Collapse
MESH Headings
- 5-Methoxypsoralen
- Antineoplastic Agents, Phytogenic/analysis
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/pharmacology
- Antineoplastic Agents, Phytogenic/radiation effects
- Cell Line, Tumor
- Cell Survival/drug effects
- Cell Survival/radiation effects
- Citrus/chemistry
- Coumarins/analysis
- Coumarins/chemistry
- Coumarins/pharmacology
- Coumarins/radiation effects
- Drug Discovery
- Drug Evaluation, Preclinical
- Gas Chromatography-Mass Spectrometry
- Humans
- Inhibitory Concentration 50
- Melanoma/drug therapy
- Melanoma, Amelanotic/drug therapy
- Methoxsalen/analogs & derivatives
- Methoxsalen/analysis
- Methoxsalen/chemistry
- Methoxsalen/pharmacology
- Methoxsalen/radiation effects
- Oils, Volatile/chemistry
- Oils, Volatile/pharmacology
- Oils, Volatile/radiation effects
- Photochemotherapy
- Phytotherapy
- Time Factors
- Ultraviolet Rays
Collapse
Affiliation(s)
- Federica Menichini
- Department of Pharmaceutical Sciences, Faculty of Pharmacy and Nutrition and Health Sciences, University of Calabria, Rende, Italy
| | | | | | | | | | | | | |
Collapse
|
25
|
Toward establishing structure–activity relationships for oxygenated coumarins as differentiation inducers of promonocytic leukemic cells. Bioorg Med Chem 2009; 17:6547-59. [DOI: 10.1016/j.bmc.2009.08.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2009] [Revised: 07/31/2009] [Accepted: 08/04/2009] [Indexed: 01/13/2023]
|
26
|
Dugo P, Piperno A, Romeo R, Cambria M, Russo M, Carnovale C, Mondello L. Determination of oxygen heterocyclic components in citrus products by HPLC with UV detection. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:6543-6551. [PMID: 19722564 DOI: 10.1021/jf901209r] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The study of oxygen heterocyclic compounds (coumarins, psoralens, polymethoxylated flavones) in natural matrices such as citrus oils is not easy due to the difficulty of obtaining standards at the required level of purity and the diversity of structures present in each kind of sample. In this work, standards were either isolated by preparative LC methods from citrus oils or synthesized, then characterized by their physicochemical parameters and spectroscopic techniques, and further used for qualitative and quantitative calculations in citrus essential oils and products made with them (Earl Grey tea, liquors, juices). An HPLC method using an innovative partially porous particle HPLC column enabled baseline separation of all analytes. The method developed was validated in terms of detection limit, quantitation limit, linearity, and precision as repeatability and intralaboratory reproducibility.
Collapse
Affiliation(s)
- Paola Dugo
- Dipartimento Farmaco-Chimico, Facolta di Farmacia, Universita di Messina, viale Annunziata, 98168 Messina, Italy.
| | | | | | | | | | | | | |
Collapse
|
27
|
Zhao YL, Tao Y, Fu CY, Kong ZQ, Chen Q, Wang R. Human hemokinin-1 and human hemokinin-1(4-11), mammalian tachykinin peptides, suppress proliferation and induce differentiation in HL-60 cells. Peptides 2009; 30:1514-22. [PMID: 19433125 DOI: 10.1016/j.peptides.2009.04.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2009] [Revised: 04/29/2009] [Accepted: 04/29/2009] [Indexed: 11/22/2022]
Abstract
Human hemokinin-1 (h HK-1) and its truncated form h HK-1(4-11) are mammalian tachykinin peptides encoded by the TAC4 gene identified in human, and the biological functions of these peptides have not been well investigated. The tachykinins have shown immuno-regulatory activities in humans. In the present study, we investigated the effects of h HK-1 and h HK-1(4-11) on the proliferation and differentiation of a human promyelocyte leukemia cell line, HL-60. It is noteworthy that h HK-1 (1-300muM) displayed inhibitory effects on the proliferation of HL-60 cells in a dose- and time-dependent manner. The effect of suppressing proliferation induced by these peptides was accompanied by an accumulation of cell cycle in the S phase. Moreover, this peptide induced differentiation of HL-60 cells by significantly increasing the NBT-reduction activity. The effects induced by h HK-1(4-11) on HL-60 cells were similar to that of h HK-1, indicating that it is the active fragment of h HK-1. However these effects induced by h HK-1 or h HK-1(4-11) were not antagonized by the NK(1) receptor antagonist SR140333 or the NK(2) receptor antagonist SR48968. All the results indicated that h HK-1 and h HK-1(4-11) were able to significantly inhibit proliferation and induce differentiation and S phase arrest of a human promyelocyte leukemia cell line HL-60, which may not be mediated through the activation of classical tachykinin NK(1) receptors and tachykinin NK(2) receptors. Our observations also implied that h HK-1 and h HK-1(4-11) could act as immunomodulatory factors in cancer chemotherapy.
Collapse
Affiliation(s)
- You-Li Zhao
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Institute of Biochemistry and Molecular Biology, School of Basic Medical Sciences, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | | | | | | | | | | |
Collapse
|
28
|
Maes D, Riveiro ME, Shayo C, Davio C, Debenedetti S, De Kimpe N. Total synthesis of naturally occurring 5,6,7- and 5,7,8-trioxygenated coumarins. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.059] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
29
|
Riveiro ME, Vazquez R, Moglioni A, Gomez N, Baldi A, Davio C, Shayo C. Biochemical mechanisms underlying the pro-apoptotic activity of 7,8-dihydroxy-4-methylcoumarin in human leukemic cells. Biochem Pharmacol 2008; 75:725-36. [DOI: 10.1016/j.bcp.2007.09.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2007] [Revised: 09/22/2007] [Accepted: 09/25/2007] [Indexed: 12/18/2022]
|
30
|
Riveiro ME, Moglioni A, Vazquez R, Gomez N, Facorro G, Piehl L, de Celis ER, Shayo C, Davio C. Structural insights into hydroxycoumarin-induced apoptosis in U-937 cells. Bioorg Med Chem 2007; 16:2665-75. [PMID: 18060791 DOI: 10.1016/j.bmc.2007.11.038] [Citation(s) in RCA: 115] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2007] [Revised: 11/10/2007] [Accepted: 11/13/2007] [Indexed: 10/22/2022]
Abstract
In the present study, we sought to establish the effect of diverse structural-related hydroxycoumarins on the proliferation, cytotoxicity, and induction of apoptosis in promonocytic leukemic cells (U-937). The dihydroxylated coumarins, 7,8-dihydroxy-coumarin and esculetin, induced DNA fragmentation as well as characteristic morphological changes of programmed cell death in U-937 cells. With the aim to perform a structure-activity relationship study, the correlation between the physicochemical properties of the molecules and their pro-apoptotic activity was carried out. Results showed that the presence of two adjacent phenolic hydroxyl groups was the most important factor in terms of the SAR. The exposure of leukemic cells to 7,8-dihydroxy-coumarin evoked a phenoxyl radical generation that was detected by electron spin resonance spectroscopy. The present study suggests that reactive oxygen species generation plays a critical role in dihydroxycoumarin-induced apoptosis in U-937 cells. These findings further suggest that these compounds may have a potential therapeutic role in the treatment of hematological malignancies.
Collapse
Affiliation(s)
- Maria E Riveiro
- Laboratorio de Radioisótopos, Facultad de Farmacia y Bioquímica, Argentina
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Franca CA, González Baró AC, Pis Diez R. Theoretical study and vibrational spectroscopy of two 5,6,7-trioxygenated coumarins. J Mol Struct 2007. [DOI: 10.1016/j.molstruc.2006.12.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
32
|
Fan YZ, Chang H, Yu Y, Liu J, Zhao L, Yang DJ, Wang R. Thymopentin (TP5), an immunomodulatory peptide, suppresses proliferation and induces differentiation in HL-60 cells. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2006; 1763:1059-66. [PMID: 16952408 DOI: 10.1016/j.bbamcr.2006.07.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2006] [Revised: 06/20/2006] [Accepted: 07/13/2006] [Indexed: 11/25/2022]
Abstract
Thymopentin (Arg-Lys-Asp-Val-Tyr, TP5) has shown immuno-regulatory activities in humans. In the present study, we investigated the effects of TP5 on the proliferation and differentiation of a human promyelocyte leukemia cell line, HL-60. It is noteworthy that TP5 displayed concentration-dependent inhibitory effects on the proliferation and colony formation of HL-60 cells. Furthermore, the decrease or even disappearance of AgNORs from nucleoli was observed in HL-60 cells after the treatment with TP5. The suppression induced by TP5 was accompanied by an accumulation of cell cycle in the G0/G1 phase. Moreover, TP5 significantly increased the NBT-reduction activity of HL-60 cells. Cytofluorometric and morphologic analysis indicated that TP5 had induced differentiation along the granulocytes lineage in HL-60 cells. d-tubocurarine (TUB) significantly antagonized the inhibitory effects induced by TP5, whereas atropine did not exhibit such effect. All the results indicated that TP5 was able to significantly inhibit proliferation and induce differentiation in HL-60 cells. Our observations also implied that TP5 not only acted as an immunomodulatory factor in cancer chemotherapy, but is also a potential chemotherapeutic agent in the human leukemia therapy.
Collapse
Affiliation(s)
- Ying-zhe Fan
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province, Department of Biochemistry and Molecular Biology, School of Life Science, Lanzhou University, 222 Tian Shui South Road, Lanzhou, 730000, PR China
| | | | | | | | | | | | | |
Collapse
|
33
|
Knoll MF, Silva ACFD, Canto-Dorow TSD, Tedesco SB. Effects of Pterocaulon polystachyum DC. (Asteraceae) on onion (Allium cepa) root-tip cells. Genet Mol Biol 2006. [DOI: 10.1590/s1415-47572006000300024] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
34
|
Han S, Zhou V, Pan S, Liu Y, Hornsby M, McMullan D, Klock HE, Haugen J, Lesley SA, Gray N, Caldwell J, Gu XJ. Identification of coumarin derivatives as a novel class of allosteric MEK1 inhibitors. Bioorg Med Chem Lett 2005; 15:5467-73. [PMID: 16199156 DOI: 10.1016/j.bmcl.2005.08.097] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2005] [Revised: 08/26/2005] [Accepted: 08/29/2005] [Indexed: 10/25/2022]
Abstract
A homogenous TR-FRET-based in vitro coupling assay for the MAP3Ks-MEK1-ERK2 kinase cascade was established and was used to screen for inhibitors of the ERK/MAPK pathway. A series of coumarin derivatives were identified from the screen. These compounds potently inhibit the activation of the unactivated human MEK1 by upstream MAP3Ks (including BRAF and COT), but do not inhibit the activity of the activated MEK1. In addition, the potency of these compounds in inhibiting MEK1 activation is not affected by varying the ATP concentration, suggesting that these inhibitors are not competitive with ATP. As expected, the coumarin compounds potently inhibit LPS-induced TNFalpha production and ERK phosphorylation in THP-1 cells, with the most potent compound having an IC(50) of 90nM. Molecular modeling studies suggest that these coumarins bind to an allosteric site in the inactive conformation of MEK1. This site has been shown to be utilized by the biarylamine series of MEK inhibitors such as PD318088. Very interestingly, the identified coumarin derivatives are almost identical to a series of inhibitors recently reported that block LPS-induced TNFalpha production. Our findings have therefore raised the possibility that other naturally occurring or synthetic coumarins with anti-cancer and anti-inflammatory activities might exert their biological function through the inhibition of MEK1.
Collapse
Affiliation(s)
- Shulin Han
- Genomics Institute of the Novartis Research Foundation (GNF), 10675 John Jay Hopkins Drive, San Diego, CA 92121, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|