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Sun N, Wang Y, Ma S, Kang H, Zhou C, Jin L, Zhang X, Zhang Y, Yuan Y, Shu P. A Review of the Phytochemistry and Biological Activities of Echinopsis Radix. Molecules 2024; 29:2267. [PMID: 38792128 PMCID: PMC11124464 DOI: 10.3390/molecules29102267] [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: 04/01/2024] [Revised: 05/06/2024] [Accepted: 05/09/2024] [Indexed: 05/26/2024] Open
Abstract
The main varieties of Echinopsis Radix recorded in the Chinese Pharmacopoeia are the roots of Echinops latifolius Tausch or Echinops grijsii Hance. However, the chemical constituents and biological activities of this herb have not been reviewed. In order to clarify the chemical constituents of the main varieties of this herb and improve the quality of Chinese medicinal material resources, this paper systematically reviewed their chemical constituents and related biological activities. Phytochemical investigations reveal eighty-five compounds including fort y-nine thiophenes (1-49), eight flavonoids (50-57), seven caffeic acids and its derivatives (58-64), eight sesquiterpenoids (65-72), and thirteen triterpenoids and other compounds (73-85) were reported from Echinopsis Radix. The review of biological activities suggests that thiophenes are the main secondary metabolites of the medicinal material which exert antitumor, insecticidal and antifungal activities. In addition, caffeic acid and its derivatives and sesquiterpenes are potential active ingredients worthy of further study. This review provides an important scientific basis for the development of active ingredients and resource quality evaluation of Echinopsis Radix.
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Affiliation(s)
- Na Sun
- Key Food and Pharmacy College, Xuchang University, Xuchang 461000, China
| | | | | | | | | | | | | | | | | | - Penghua Shu
- Key Food and Pharmacy College, Xuchang University, Xuchang 461000, China
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2
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Gan X, Huang H, Wen J, Liu K, Yang Y, Li X, Fang G, Liu Y, Wang X. α-Terthienyl induces prostate cancer cell death through inhibiting androgen receptor expression. Biomed Pharmacother 2022; 152:113266. [PMID: 35691152 DOI: 10.1016/j.biopha.2022.113266] [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: 02/03/2022] [Revised: 05/30/2022] [Accepted: 06/06/2022] [Indexed: 11/28/2022] Open
Abstract
Prostate cancer is a disease that often occurs in elderly men. Androgen receptor signaling pathway runs through the occurrence and development of prostate cancer. Thereby, targeting androgen receptor is a crucial strategy for the treatment of prostate cancer. α-Terthienyl, which has been used as photosensitive activator and insecticide, is a natural compound rich in marigold. In the present study, we found α- terthienyl could inhibit the cell viability of four prostate cancer cell lines, especially on LNCaP and 22Rv1 cells which endogenously express androgen receptor. Then we proved that it could inhibit the proliferation of prostate cancer cells and induce apoptosis of prostate cancer cells by plate clone formation assay and flow cytometry respectively. Furthermore, we found α-terthienyl could inhibit androgen receptor nuclear translocation, reduce androgen receptor expression, reduce the mRNA and protein expression of androgen receptor target genes (KLK3, TMPRSS2, PCA3) and nuclear proliferation antigen Ki67 and PCNA. In addition, it inhibited the expression and phosphorylation of Akt protein while increasing the expression of tumor suppressor p27. Besides, we constructed a mouse xenograft prostate cancer model and confirmed that α-terthienyl also inhibited the growth of prostate cancer in vivo. In conclusively, α-terthienyl played an anti-prostate cancer role by inhibiting both the expression of androgen receptor and the transduction of its signal pathway, suggesting that it is a promising natural small molecule for the treatment of prostate cancer.
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Affiliation(s)
- Xia Gan
- Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, 13 Wuhe Road, Qingxiu District, Nanning 530200, China; Institute of Marine Drugs, Guangxi University of Chinese Medicine, 13 Wuhe Road, Qingxiu District, Nanning 530200, China
| | - Hailing Huang
- Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, 13 Wuhe Road, Qingxiu District, Nanning 530200, China
| | - Jing Wen
- Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, 13 Wuhe Road, Qingxiu District, Nanning 530200, China
| | - Kai Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, 13 Wuhe Road, Qingxiu District, Nanning 530200, China
| | - Yuting Yang
- Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, 13 Wuhe Road, Qingxiu District, Nanning 530200, China
| | - Xiaoning Li
- School of Foreign Languages, Nanning Normal University, 3 Hexing Road, Qingxiu District, Nanning 530299, China
| | - Gang Fang
- Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, 13 Wuhe Road, Qingxiu District, Nanning 530200, China.
| | - Yonghong Liu
- Institute of Marine Drugs, Guangxi University of Chinese Medicine, 13 Wuhe Road, Qingxiu District, Nanning 530200, China; CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Xueni Wang
- Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Guangxi University of Chinese Medicine, 13 Wuhe Road, Qingxiu District, Nanning 530200, China; CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
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3
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Panda M, Purohit P, Meher BR. Structure-based virtual screening, ADMET profiling, and molecular dynamics simulation studies on HIV-1 protease for identification of active phytocompounds as potential anti-HIV agents. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2060968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Madhusmita Panda
- Computational Biology and Bioinformatics Laboratory, PG Department of Botany, Berhampur University, Berhampur, India
| | - Priyanka Purohit
- Computational Biology and Bioinformatics Laboratory, PG Department of Botany, Berhampur University, Berhampur, India
| | - Biswa Ranjan Meher
- Computational Biology and Bioinformatics Laboratory, PG Department of Botany, Berhampur University, Berhampur, India
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Scotti F, Mou L, Huang C, Booker A, Weckerle C, Maake C, Heinrich M. Treating Chronic Wounds Using Photoactive Metabolites: Data Mining the Chinese Pharmacopoeia for Potential Lead Species. PLANTA MEDICA 2021; 87:1206-1218. [PMID: 34528222 PMCID: PMC8585569 DOI: 10.1055/a-1578-8778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
Efficient wound treatment that addresses associated infections and inflammation remains one of the big unmet needs, especially in low- and middle-income countries. One strategy for securing better healthcare can be using medicinal plants if sufficient evidence on their safety and therapeutic benefits can be ascertained. A unique novel opportunity could be photo-enhanced wound treatment with a combination of light-sensitive plant preparations and local exposure to daylight. Data mining strategies using existing resources offer an excellent basis for developing such an approach with many potential plant candidates. In the present analysis, we researched the 535 botanical drugs included in the Chinese pharmacopeia and identified 183 medicinal plant species, 82 for treating open wounds caused by trauma and 101 for inflammatory skin conditions. After further screening for reports on the presence of known photoactive compounds, we determined a core group of 10 scientifically lesser-known botanical species that may potentially be developed into more widely used topical preparations for photodynamic treatment of infected wounds. Our predictive approach may contribute to developing a more evidence-based use of herbal medicines.
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Affiliation(s)
- Francesca Scotti
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
| | - Linru Mou
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
| | - Chen Huang
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
| | - Anthony Booker
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
- Research Centre for Optimal Health, School of Life Sciences, College of Liberal Arts and Sciences, University of Westminster. London, UK
| | - Caroline Weckerle
- Institute of Systematic and Evolutionary Botany, University of Zürich, Zürich, Switzerland
| | - Caroline Maake
- Institute of Anatomy, University of Zürich, Zürich, Switzerland
| | - Michael Heinrich
- Research Group “Pharmacognosy and Phytotherapy”, UCL School of Pharmacy, London, UK
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5
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Chamkhi I, Benali T, Aanniz T, El Menyiy N, Guaouguaou FE, El Omari N, El-Shazly M, Zengin G, Bouyahya A. Plant-microbial interaction: The mechanism and the application of microbial elicitor induced secondary metabolites biosynthesis in medicinal plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 167:269-295. [PMID: 34391201 DOI: 10.1016/j.plaphy.2021.08.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/26/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
Plants and microbes interact with each other via different chemical signaling pathways. At the risophere level, the microbes can secrete molecules, called elicitors, which act on their receptors located in plant cells. The so-called elicitor molecules as well as their actions differ according to the mcirobes and induce different bilogical responses in plants such as the synthesis of secondary metabolites. Microbial compounds induced phenotype changes in plants are known as elicitors and signaling pathways which integrate elicitor's signals in plants are called elicitation. In this review, the impact of microbial elicitors on the synthesis and the secretion of secondary metabolites in plants was highlighted. Moreover, biological properties of these bioactive compounds were also highlighted and discussed. Indeed, several bacteria, fungi, and viruses release elicitors which bind to plant cell receptors and mediate signaling pathways involved in secondary metabolites synthesis. Different phytochemical classes such as terpenoids, phenolic acids and flavonoids were synthesized and/or increased in medicinal plants via the action of microbial elicitors. Moreover, these compounds compounds exhibit numerous biological activities and can therefore be explored in drugs discovery.
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Affiliation(s)
- Imane Chamkhi
- Centre GEOPAC, Laboratoire de Geobiodiversite et Patrimoine Naturel, Université Mohammed V de, Institut Scientifique Rabat, Maroc; University Mohammed VI Polytechnic, Agrobiosciences Program, Lot 660, Hay Moulay Rachid, Benguerir, Morocco.
| | - Taoufiq Benali
- Environment and Health Team, Polydisciplinary Faculty of Safi, Cadi Ayyad University, Safi, Morocco
| | - Tarik Aanniz
- Medical Biotechnology Laboratory (MedBiotech), Rabat Medical & Pharmacy School, Mohammed V University in Rabat, 6203 Rabat, Morocco
| | - Naoual El Menyiy
- Department of Biology, Faculty of Science, University Sidi Mohamed Ben Abdellah, Fez, Morocco
| | - Fatima-Ezzahrae Guaouguaou
- Mohammed V University in Rabat, LPCMIO, Materials Science Center (MSC), Ecole Normale Supérieure, Rabat, Morocco
| | - Nasreddine El Omari
- Laboratory of Histology, Embryology, and Cytogenetic, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco
| | - Mohamed El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Cairo, 11566, Egypt; Department of Pharmaceutical Biology, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo, 11835, Egypt
| | - Gokhan Zengin
- Physiology and Biochemistry Research Laboratory, Department of Biology, Science Faculty, Selcuk University, Konya, Turkey.
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, and Genomic Center of Human Pathologies, Faculty of Medicine and Pharmacy, Mohammed V University in Rabat, Morocco.
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6
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Rodrigues CV, Johnson KR, Lombardi VC, Rodrigues MO, Sobrinho JA, de Bettencourt-Dias A. Photocytotoxicity of Thiophene- and Bithiophene-Dipicolinato Luminescent Lanthanide Complexes. J Med Chem 2021; 64:7724-7734. [PMID: 34018753 DOI: 10.1021/acs.jmedchem.0c01805] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
New thiophene-dipicolinato-based compounds, K2nTdpa (n = 1, 2), were isolated. Their anions are sensitizers of lanthanide ion (LnIII) luminescence and singlet oxygen generation (1O2). Emission in the visible and near-infrared regions was observed for the LnIII complexes with efficiencies (ϕLn) ϕEu = 33% and ϕYb = 0.31% for 1Tdpa2- and ϕYb = 0.07% for 2Tdpa2-. The latter does not sensitize EuIII emission. Fluorescence imaging of HeLa live cells incubated with K3[Eu(1Tdpa)3] indicates that the complex permeates the cell membrane and localizes in the mitochondria. All complexes generate 1O2 in solution with efficiencies (ϕO12) as high as 13 and 23% for the GdIII complexes of 1Tdpa2- and 2Tdpa2-, respectively. [Ln(nTdpa)3]3- (n = 1, 2) are phototoxic to HeLa cells when irradiated with UV light with IC50 values as low as 4.2 μM for [Gd(2Tdpa)3]3- and 91.8 μM for [Eu(1Tdpa)3]3-. Flow cytometric analyses indicate both apoptotic and necrotic cell death pathways.
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Affiliation(s)
- Carime V Rodrigues
- Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States.,Laboratório de Inorgânica e Materiais, Instituto de Química, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasilia 70910-900 DF, Brazil
| | - Katherine R Johnson
- Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Vincent C Lombardi
- Department of Microbiology and Immunology, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Marcelo O Rodrigues
- Laboratório de Inorgânica e Materiais, Instituto de Química, Universidade de Brasília, Campus Universitário Darcy Ribeiro, Brasilia 70910-900 DF, Brazil
| | - Josiane A Sobrinho
- Department of Chemistry, University of Nevada, Reno, Reno, Nevada 89557, United States
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Novel Substituted Thiophenes and Sulf-Polyacetylene Ester from Echinops ritro L. Molecules 2019; 24:molecules24040805. [PMID: 30813374 PMCID: PMC6413031 DOI: 10.3390/molecules24040805] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 02/13/2019] [Accepted: 02/13/2019] [Indexed: 11/17/2022] Open
Abstract
Three new substituted bithiophenes (1⁻3), and one new sulf-polyacetylene ester, ritroyne A (16) were isolated from the whole plant of Echinops ritro together with twelve known substituted thiophenes. The structures were elucidated on the basis of extensive spectroscopic analysis including 1D and 2D NMR as well as MS. Furthermore, the absolute configuration of ritroyne A (16) was established by computational methods. In bioscreening experiments, four compounds (2, 4, 12, 14) showed similar antibacterial activity against Staphylococcus aureus ATCC 2592 with levofloxacin (8 µg/mL). Five compounds (2, 4, 9, 12, 14) exhibited antibacterial activities against Escherichia coli ATCC 25922, with minimum inhibitory concentration (MIC) values of 32⁻64 µg/mL. Three compounds (2, 4, 12) exhibited antifungal activities against Candida albicans ATCC 2002 with MIC values of 32⁻64 µg/mL. However, compound 16 did not exhibit antimicrobial activities against three microorganisms.
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García-Bores AM, Arciniegas-Arciniegas A, Reyna-Campos A, Céspedes-Acuña C, Avila-Suárez B, Alarcón-Enos J, Flores-Maya S, Espinosa-González AM, de Vivar-Romo AR, Pérez-Plasencia C, Avila-Acevedo JG. Phytochemical Composition and Biological Activities of Dyssodia tagetiflora Lag. Chem Biodivers 2017; 15. [PMID: 29224253 DOI: 10.1002/cbdv.201700415] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 12/06/2017] [Indexed: 12/28/2022]
Abstract
While plants of the genus Dyssodia are used by man to a certain extent, few phytochemical and pharmacological studies have been performed with species of this genus. D. tagetiflora is an endemic plant of Mexico and has been used as fodder. The aim of this research was to isolate and identify the main bioactive components and evaluate the insecticidal, antioxidant, genotoxic and cytoprotective activities of D. tagetiflora. The isolated substances included an essential oil composed of six monoterpenes, and extracts containing two flavonols, three flavonol-glycosides and four thiophenes. The compounds were characterized using spectroscopic and spectrometric methods, including GC/MS, MS and NMR. The essential oil showed insecticidal activity against Drosophila melanogaster larvae. The methanolic extract of D. tagetiflora (DTME) had strong antioxidant activity against DPPH and ABTS radicals; DTME showed no evidence of genotoxic or cytotoxic effects. In contrast, DTME showed a cytoprotective effect attenuating the formation of H2 O2 -induced micronuclei in Vicia faba roots. This report is the first to describe the phytochemical and biological activity of D. tagetiflora.
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Affiliation(s)
- Ana María García-Bores
- Laboratorio de Fitoquímica, UBIPRO, FES-Iztacala, Universidad Nacional Autónoma de México, Av. De los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, 54090, Estado de México, México
| | - Amira Arciniegas-Arciniegas
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, México
| | - Alma Reyna-Campos
- Laboratorio de Fitoquímica, UBIPRO, FES-Iztacala, Universidad Nacional Autónoma de México, Av. De los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, 54090, Estado de México, México
| | - Carlos Céspedes-Acuña
- Laboratorio de Fitoquímica-Ecológica, Grupo de Química y Biotecnología de Productos Naturales Bioactivos, Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bio Bio, Av. Andrés Bello s/n, P.O. Box 447, Ñuble, 3780000, Chillán, Chile
| | - Betsaida Avila-Suárez
- Laboratorio de Fitoquímica, UBIPRO, FES-Iztacala, Universidad Nacional Autónoma de México, Av. De los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, 54090, Estado de México, México
| | - Julio Alarcón-Enos
- Laboratorio de Fitoquímica-Ecológica, Grupo de Química y Biotecnología de Productos Naturales Bioactivos, Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bio Bio, Av. Andrés Bello s/n, P.O. Box 447, Ñuble, 3780000, Chillán, Chile
| | - Saul Flores-Maya
- Laboratorio de Recursos Naturales, UBIPRO, FES-Iztacala, Universidad Nacional Autónoma de México, Av. De los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, 54090, Estado de México, México
| | - Adriana Montserrat Espinosa-González
- Laboratorio de Fitoquímica, UBIPRO, FES-Iztacala, Universidad Nacional Autónoma de México, Av. De los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, 54090, Estado de México, México
| | - Alfonso Romo de Vivar-Romo
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, 04510, Ciudad de México, México
| | - Carlos Pérez-Plasencia
- Laboratorio de Genómica Funcional, UBIMED, FES-Iztacala, Universidad Nacional Autónoma de México, Av. De los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, 54090, Estado de México, México
| | - José Guillermo Avila-Acevedo
- Laboratorio de Fitoquímica, UBIPRO, FES-Iztacala, Universidad Nacional Autónoma de México, Av. De los Barrios No. 1, Los Reyes Iztacala, Tlalnepantla, 54090, Estado de México, México
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Zuo H, Huang R, Zhang Q, Li M, Wang C, Shen Y. Synthesis of 4,4′-dimethoxy-3,3′-bithiophene. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-014-1747-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Lee JS, Ahn JH, Cho YJ, Kim HY, Yang YI, Lee KT, Jang DS, Choi JH. α-Terthienylmethanol, isolated from Eclipta prostrata, induces apoptosis by generating reactive oxygen species via NADPH oxidase in human endometrial cancer cells. JOURNAL OF ETHNOPHARMACOLOGY 2015; 169:426-34. [PMID: 25940205 DOI: 10.1016/j.jep.2015.04.029] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 04/11/2015] [Accepted: 04/18/2015] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Eclipta prostrate L. (syn. E. alba Hassk), commonly known as False Daisy, has been used in traditional medicine in Asia to treat a variety of diseases, including cancer. Although an anti-tumor effect has been suggested for E. prostrata, the exact anti-tumor effects and underlying molecular mechanisms of its bioactive compounds are poorly understood. The aim of this study was to identify compounds with anti-cancer activity from E. prostrata and to investigate their mechanism of action. MATERIALS AND METHODS To assess cell viability, cell cycle progression, and apoptosis, we performed MTT assays and FACS analysis using Annexin and PI staining. We also investigated reactive oxygen species (ROS) production and caspase activation using flow cytometry and Western blot analysis, respectively. Cytosolic translocation of cytochrome c was measured using an ELISA kit. Antioxidants, MAPK signaling inhibitors, NADPH oxidase inhibitors, and siRNA were used to elucidate the molecular mechanism of action of the compound. RESULTS We isolated five terthiophenes from the n-hexane fraction of E. prostrata; of these, α-terthienylmethanol possessed potent cytotoxic activity against human endometrial cancer cells (Hec1A and Ishikawa) (IC50<1μM). The growth inhibitory effect of α-terthienylmethanol was mediated by the induction of apoptosis, as shown by the accumulation of sub-G1 and apoptotic cells. In addition, α-terthienylmethanol triggered caspase activation and cytochrome c release into the cytosol in a time-dependent manner. Moreover, α-terthienylmethanol increased the intracellular level of ROS and decreased that of GSH, and the antioxidants N-acetyl-l-cysteine and catalase significantly attenuated α-terthienylmethanol-induced apoptosis. We further demonstrated that inhibition of the NADPH oxidase attenuated α-terthienylmethanol-induced cell death and ROS accumulation in endometrial cancer cells. CONCLUSION Overall, these results suggest that α-terthienylmethanol, a naturally occurring terthiophene isolated from E. prostrata, induces apoptosis in human endometrial cancer cells by ROS production, partially via NADPH oxidase.
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Affiliation(s)
- Jae-Seung Lee
- Department of Life & Nanopharmaceutical Science, Kyung Hee University, Seoul, South Korea; Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Ji-Hye Ahn
- Department of Life & Nanopharmaceutical Science, Kyung Hee University, Seoul, South Korea; Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Yoon-Jin Cho
- Department of Life & Nanopharmaceutical Science, Kyung Hee University, Seoul, South Korea; Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Ha-Yeong Kim
- Department of Life & Nanopharmaceutical Science, Kyung Hee University, Seoul, South Korea; Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Yeong-In Yang
- Department of Life & Nanopharmaceutical Science, Kyung Hee University, Seoul, South Korea; Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Kyung-Tae Lee
- Department of Life & Nanopharmaceutical Science, Kyung Hee University, Seoul, South Korea
| | - Dae-Sik Jang
- Department of Life & Nanopharmaceutical Science, Kyung Hee University, Seoul, South Korea; Department of Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - Jung-Hye Choi
- Department of Life & Nanopharmaceutical Science, Kyung Hee University, Seoul, South Korea; Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea.
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11
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Wei Y, Zhang K, Yin L, Du J, Zhang G. Isolation of bioactive components from Flaveria bidentis (L.) Kuntze using high-speed counter-current chromatography and time-controlled collection method. J Sep Sci 2012; 35:869-74. [PMID: 22532356 DOI: 10.1002/jssc.201101027] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Semipreparative high-speed counter-current chromatography (HSCCC) by time-controlled collection method was successfully applied for isolation and purification of α-terthienyl, 5-(3-buten-1-ynyl)-2,2'-bithienyl, and 5-(3-penten-1-ynyl)-2,2'-bithienyl from Flaveria bidentis (L.) Kuntze for the first time. The two-phase solvent system composed of n-hexane and acetonitrile at the volume ratio of 1:1 (v/v) was used for the semipreparative HSCCC. The 5.2 mg α-terthienyl, 2.2 mg 5-(3-buten-1-ynyl)-2,2'-bithienyl, and 4.3 mg 5-(3-penten-1-ynyl)-2,2'-bithienyl with the purity of 99.9, 90.2, and 92.1% were produced from 265.6 mg crude extract, respectively, and 5-(3-penten-1-ynyl)-2,2'-bithienyl was first isolated from Flaveria bidentis (L.) Kuntze. The structures of the separated compounds were identified by electrospray-ionization mass spectrometry and proton and carbon nuclear magnetic resonance ((1)H- and (13)C-NMR).
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Affiliation(s)
- Yun Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, P. R. China.
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12
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Zhang P, Jin WR, Shi Q, He H, Ma ZJ, Qu HB. Two novel thiophenes from Echinops grijissi Hance. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2008; 10:977-981. [PMID: 19003618 DOI: 10.1080/10286020802240467] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Two novel thiophenes, grijisyne A (1), and grijisone A (2), were isolated from the crude ethanolic extract of the roots of Echinops grijissi Hance. Their structures were determined by spectral methods, especially 2D NMR spectra. All the isolated compounds were tested for their anti-tumor activities against three human tumor cell lines, HL-60, K562, and MCF-7.
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Affiliation(s)
- Peng Zhang
- College of Pharmaceutical Sciences, Zhejiang University, Institute of Pharmaceutical Informatics, Hangzhou, Zhejiang, China
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Jin W, Shi Q, Hong C, Cheng Y, Ma Z, Qu H. Cytotoxic properties of thiophenes from Echinops grijissi Hance. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2008; 15:768-774. [PMID: 18068965 DOI: 10.1016/j.phymed.2007.10.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2007] [Revised: 06/30/2007] [Accepted: 10/18/2007] [Indexed: 05/25/2023]
Abstract
The dichloromethane fraction of the crude ethanol extract of Echinops grijissi Hance roots exhibited different cytotoxicity against a panel of four human tumor cell lines, HepG2, K562, HL60 and MCF-7. By a bioassay-guided fractionation, eight thiophenes were isolated from the dichloromethane fraction, one of them was isolated from the plant for the first time. And they were assayed for their toxicity against the cell lines in order to compare their relative anti-tumor activity and find candidates of potential anti-tumor drugs. The dichloromethane fraction and isolated thiophenes showed different activity against the cell lines, and the anti-tumor activity of the dichloromethane fraction was also studied in vivo in S180 implanted ICR mice, however, it exhibited no anti-tumor activity at dosage of 20 or 40 mg/kg/d. There were also deaths recorded and the animals showed signs of toxicity when the dosage is 200 mg/kg/d.
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Affiliation(s)
- Wenrong Jin
- Institute of Pharmaceutical Informatics, College of Pharmaceutical Sciences of Zhejiang University, Hangzhou, China
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15
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Liu Y, Ye M, Guo HZ, Zhao YY, Guo DA. New thiophenes from Echinops grijisii. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2002; 4:175-178. [PMID: 12118504 DOI: 10.1080/1028602021000000071] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A new thiophene-echinoynethiophene A (11), four new natural products, namely 5,5"-dichloro-alpha-terthiophene (1), 5-chloro-alpha-terthiophene (2), 5-acetyl alpha-terthiophene (3) and 5-carboxyl bithiophene (12), together with seven known thiophenes were isolated and purified from ethanol extract of roots of Echinops grijisii Hance. Their structures were identified on the basis of spectral data.
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Affiliation(s)
- Yue Liu
- The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
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Chanh TC, Lewis DE, Judy MM, Sogandares-Bernal F, Michalek GR, Utecht RE, Skiles H, Chang SC, Matthews JL. Inhibition of retrovirus-induced syncytium formation by photoproducts of a brominated 1,8-naphthalimide compound. Antiviral Res 1994; 25:133-46. [PMID: 7847875 DOI: 10.1016/0166-3542(94)90102-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A major disadvantage of conventional phototherapy is the requirement for the in situ delivery of stimulating photoenergy subsequent to the binding of photochemicals to target malignant cells, or virus-infected cells, or viruses. This drawback has resulted in considerable limitation in the use of photochemicals in photomedicine. To circumvent this problem, we have investigated the antiviral efficacy of a brominated 1,8-naphthalimide photocompound, termed LY66Br [3-bromo-4-(hexylamino)-N-hexyl-1,8-naphthalimide], which upon exposure to visible light at 420 nm generates independently of oxygen one or more stable antiviral molecular photoproducts (e.g., is 'preactivated'). Human cell lines infected with the human immunodeficiency virus type 1 (HIV-1), or with the human T-lymphotropic virus type-1 (HTLV-I) exposed to photochemical products of LY66Br (P-LY66Br) completely lost their ability to form syncytia in vitro. Photoproducts of P-LY66Br retain full antiviral activity for at least 3 and 6 weeks when stored at room temperature and at -80 degrees C, respectively. Concentrations of P-LY66Br, effective in inhibiting syncytium formation mediated by HIV-1 and HTLV-I, were nontoxic to normal red cell components of whole blood (red blood cell 2,3-diphosphoglyceric acid, adenosine triphosphate, osmotic fragility or blood type antigens). Additionally, no evidence of acute toxicity was demonstrated in mice following an intravenous bolus inoculation to achieve plasma concentration of 600 microM of P-LY66Br. These findings represent the first demonstration of inhibition of retrovirus-induced syncytium formation by a photochemical product, and justify further investigation of the preactivation process of photochemicals in the treatment of systemic viral infections such as the acquired immunodeficiency syndrome (AIDS), in cancer therapy, and in sterilization of banked blood products.
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Affiliation(s)
- T C Chanh
- Department of Virology and Immunology, Southwest Foundation for Biomedical Research, San Antonio, TX 78228
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Kagan J, Wang X, Chen X, Lau KY, Batac IV, Tuveson RW, Hudson JB. DNA cleavage, antiviral and cytotoxic reactions photosensitized by simple enediyne compounds. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 1993; 21:135-42. [PMID: 8301409 DOI: 10.1016/1011-1344(93)80175-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Very potent antibiotic antitumor natural products contain a enediyne moiety which, upon thermal activation, is capable of abstracting hydrogens from DNA. 1,6-Diphenyl-3-hexene-1,5-diyne was selected as a candidate for inducing DNA strand breaks photochemically. Easily interconverted with light, both geometric isomers 1 and 2 were expected to be phototoxic. As anticipated, they photosensitized the production of strand breaks in double-stranded supercoiled pBR322, and in single-stranded M13 DNA. The DNA cleavage reactions were favored by the presence of oxygen and were inhibited by ethanol. Preliminary experiments with the (Z)-isomer indicated moderate light-dependent antiviral activity against human immunodeficiency virus (HIV), Sindbis virus, and mouse cytomegalovirus. The enediynes were cytotoxic to Escherichia coli, a gram-negative organism, to Streptococcus faecalis, a gram-positive organism, to Daphnia magna and to fish (Pimephales promelas), but only in the presence of light. The production of o-terphenyl, the expected product of Bergman cyclization of 1, could not be confirmed. However, both 1 and 2 photosensitized the formation of singlet oxygen and of superoxide anion radical, and photodynamic reactions could have been responsible for some of the phototoxic reactions observed.
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Affiliation(s)
- J Kagan
- Department of Chemistry, University of Illinois at Chicago 60607-7061
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Abstract
Various synthetic analogues of the naturally occurring terthiophene, alpha-terthienyl (alpha T), were evaluated for anti-human immunodeficiency virus (HIV) activity. The compounds were incubated individually with a known amount of the virus, with or without UVA radiation (long-wavelength ultraviolet) and residual virus was monitored for its ability to produce cytopathic effects in cell culture and the production of virus-specific protein (p24). The basic terthiophene structure was essential for good anti-HIV activity, although various side chains, such as alcohols, bromo, methyl, thiomethyl and trimethylsilyl groups, permitted retention of maximum activity. Under optimum conditions, as little as 12 ng/mL of these compounds (i.e. approximately 3 x 10(-8) M) could inactivate 10(3) infectious virions. None of the compounds however were more active than alpha T itself. In all cases, UVA radiation was essential. Several side chains decreased the antiviral efficacy, and some side chains abrogated the activity.
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Affiliation(s)
- J B Hudson
- Division of Medical Microbiology, University of British Columbia, Vancouver, Canada
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