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Mejía-Méndez JL, Lorenzo-Leal AC, Bach H, López-Mena ER, Navarro-López DE, Hernández LR, Juárez ZN, Sánchez-Arreola E. Antimicrobial, Cytotoxic, and Anti-Inflammatory Activities of Tigridia vanhouttei Extracts. PLANTS (BASEL, SWITZERLAND) 2023; 12:3136. [PMID: 37687382 PMCID: PMC10489859 DOI: 10.3390/plants12173136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/10/2023]
Abstract
In this work, bulb extracts of Tigridia vanhouttei were obtained by maceration with solvents of increasing polarity. The extracts were evaluated against a panel of pathogenic bacterial and fungal strains using the minimal inhibitory concentration (MIC) assay. The cytotoxicity of the extracts was tested against two cell lines (THP-1 and A549) using the MTT assay. The anti-inflammatory activity of the extracts was evaluated in THP-1 cells by measuring the secretion of pro-inflammatory (IL-6 and TNF-α) and anti-inflammatory (IL-10) cytokines by ELISA. The chemical composition of the extracts was recorded by FTIR spectroscopy, and their chemical profiles were evaluated using GC-MS. The results revealed that only hexane extract inhibited the growth of the clinical isolate of Pseudomonas aeruginosa at 200 μg/mL. Against THP-1 cells, hexane and chloroform extracts were moderately cytotoxic, as they exhibited LC50 values of 90.16, and 46.42 μg/mL, respectively. Treatment with methanol extract was weakly cytotoxic at LC50 443.12 μg/mL against the same cell line. Against the A549 cell line, hexane, chloroform, and methanol extracts were weakly cytotoxic because of their LC50 values: 294.77, 1472.37, and 843.12 μg/mL. The FTIR analysis suggested the presence of natural products were confirmed by carboxylic acids, ketones, hydroxyl groups, or esters. The GC-MS profile of extracts revealed the presence of phytosterols, tetracyclic triterpenes, multiple fatty acids, and sugars. This report confirms the antimicrobial, cytotoxic, and anti-inflammatory activities of T. vanhouttei.
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Affiliation(s)
- Jorge L. Mejía-Méndez
- Laboratory of Phytochemistry Research, Chemical Biological Sciences Department, Universidad de las Américas Puebla, Ex Hacienda Sta. Catarina Mártir S/N, San Andrés Cholula 72810, Mexico;
| | - Ana C. Lorenzo-Leal
- Division of Infectious Diseases, Faculty of Medicine, University of British Columbia, Vancouver, BC V6H 3Z6, Canada;
| | - Horacio Bach
- Division of Infectious Diseases, Faculty of Medicine, University of British Columbia, Vancouver, BC V6H 3Z6, Canada;
| | - Edgar R. López-Mena
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Campus Guadalajara, Av. Gral. Ramón Corona No 2514, Colonia Nuevo México, Zapopan 45121, Mexico; (E.R.L.-M.); (D.E.N.-L.)
| | - Diego E. Navarro-López
- Tecnologico de Monterrey, Escuela de Ingeniería y Ciencias, Campus Guadalajara, Av. Gral. Ramón Corona No 2514, Colonia Nuevo México, Zapopan 45121, Mexico; (E.R.L.-M.); (D.E.N.-L.)
| | - Luis R. Hernández
- Laboratory of Phytochemistry Research, Chemical Biological Sciences Department, Universidad de las Américas Puebla, Ex Hacienda Sta. Catarina Mártir S/N, San Andrés Cholula 72810, Mexico;
| | - Zaida N. Juárez
- Chemistry Area, Deanship of Biological Sciences, Universidad Popular Autónoma del Estado de Puebla, 21 Sur 1103 Barrio Santiago, Puebla 72410, Mexico;
| | - Eugenio Sánchez-Arreola
- Laboratory of Phytochemistry Research, Chemical Biological Sciences Department, Universidad de las Américas Puebla, Ex Hacienda Sta. Catarina Mártir S/N, San Andrés Cholula 72810, Mexico;
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de Souza AA, Ortíz BLS, Borges SF, Pinto AVP, Ramos RDS, Pena IC, Rocha Koga RDC, Batista CE, de Souza GC, Ferreira AM, Duvoisin Junior S, Tavares Carvalho JC. Acute Toxicity and Anti-Inflammatory Activity of Trattinnickia rhoifolia Willd (Sucuruba) Using the Zebrafish Model. Molecules 2022; 27:molecules27227741. [PMID: 36431841 PMCID: PMC9699319 DOI: 10.3390/molecules27227741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/28/2022] [Accepted: 10/01/2022] [Indexed: 11/12/2022] Open
Abstract
The species Trattinnickia rhoifolia Willd, (T. rhoifolia), which belongs to the Burseraceae family, is widely used in ethnopharmacological cultural practices by traditional Amazonian people for anti-inflammatory purposes, sometimes as their only therapeutic resource. Although it is used in teas, infusions, macerations and in food, the species is still unexplored in regard to its pharmacophoric potential and chemical profile. Therefore, the aim of this study was to conduct a phytochemical characterization of the hydroethanolic extract of T. rhoifolia leaves (HELTr) and to evaluate the acute toxicity and anti-inflammatory activity of this species using zebrafish (Danio rerio). The extract was analyzed by gas chromatography−mass spectrometry (GC-MS). The evaluation of the acute toxicity of the HELTr in adult zebrafish was determined using the limit test (2000 mg/kg), with behavioral and histopathological evaluations, in addition to the analysis of the anti-inflammatory potential of HELTr in carrageenan-induced abdominal edema, followed by the use of the computational method of molecular docking. The phytochemical profile of the species is chemically diverse, suggesting the presence of the fatty acids, ester, alcohol and benzoic acid classes, including propanoic acid, ethyl ester and hexadecanoic acid. In the studies of zebrafish performed according to the index of histopathological changes (IHC), the HELTr did not demonstrate toxicity in the behavioral and histopathological assessments, since the vital organs remained unchanged. Carrageenan-induced abdominal edema was significantly reduced at all HELTr doses (100, 200 and 500 mg/kg) in relation to the negative control, dimethyl sulfoxide (DMSO), while the 200 mg/kg dose showed significant anti-inflammatory activity in relation to the positive control (indomethacin). With these activities being confirmed by molecular docking studies, they showed a good profile for the inhibition of the enzyme Cyclooxygenase-2 (COX-2), as the interactions established at the sites of the receptors used in the docking study were similar to the controls (RCX, IMN and CEL). Therefore, the HELTr has an acceptable degree of safety for acute toxicity, defined in the analysis of behavioral changes, mortality and histopathology, with a significant anti-inflammatory action in zebrafish at all doses, which demonstrates the high pharmacophoric potential of the species. These results may direct future applications and drug development but still require further elucidation.
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Affiliation(s)
- Agerdânio Andrade de Souza
- Post-Graduate Program in Pharmaceutical Innovation, Pharmacy Course, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, Macapá CEP 68903-419, Amapá, Brazil
- Indigenous Intercultural Licensing Course, Binational Campus, Federal University of Amapá, Rodovia BR 156, No. 3051, Universidade, Oiapoque CEP 68980-000, Amapá, Brazil
- Research Laboratory of Drugs, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, km 02, Macapá CEP 68903-419, Amapá, Brazil
| | - Brenda Lorena Sánchez Ortíz
- Research Laboratory of Drugs, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, km 02, Macapá CEP 68903-419, Amapá, Brazil
| | - Swanny Ferreira Borges
- Post-Graduate Program in Pharmaceutical Innovation, Pharmacy Course, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, Macapá CEP 68903-419, Amapá, Brazil
- Research Laboratory of Drugs, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, km 02, Macapá CEP 68903-419, Amapá, Brazil
| | - Andria Vanessa Pena Pinto
- Research Laboratory of Drugs, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, km 02, Macapá CEP 68903-419, Amapá, Brazil
| | - Ryan da Silva Ramos
- Graduate Program in Biotechnology and Biodiversity-Network BIONORTE, Federal University of Amapá, Macapá CEP 68903-419, Amapá, Brazil
| | - Igor Colares Pena
- Laboratory of Modeling and Computational Chemistry, Department of Biological and Health Sciences, Federal University of Amapá, Macapá CEP 68902-280, Amapá, Brazil
| | - Rosemary de Carvalho Rocha Koga
- Post-Graduate Program in Pharmaceutical Innovation, Pharmacy Course, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, Macapá CEP 68903-419, Amapá, Brazil
- Research Laboratory of Drugs, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, km 02, Macapá CEP 68903-419, Amapá, Brazil
| | - Carla Estefani Batista
- School of Technology, University of the State of Amazonas–UEA, Manaus CEP 69050-020, Amazonas, Brazil
| | - Gisele Custódio de Souza
- Post-Graduate Program in Pharmaceutical Innovation, Pharmacy Course, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, Macapá CEP 68903-419, Amapá, Brazil
- Research Laboratory of Drugs, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, km 02, Macapá CEP 68903-419, Amapá, Brazil
| | - Adriana Maciel Ferreira
- Post-Graduate Program in Pharmaceutical Innovation, Pharmacy Course, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, Macapá CEP 68903-419, Amapá, Brazil
- Research Laboratory of Drugs, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, km 02, Macapá CEP 68903-419, Amapá, Brazil
| | - Sergio Duvoisin Junior
- School of Technology, University of the State of Amazonas–UEA, Manaus CEP 69050-020, Amazonas, Brazil
| | - José Carlos Tavares Carvalho
- Post-Graduate Program in Pharmaceutical Innovation, Pharmacy Course, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, Macapá CEP 68903-419, Amapá, Brazil
- Research Laboratory of Drugs, Department of Biological and Health Sciences, Federal University of Amapá, Rodovia Juscelino Kubitschek, km 02, Macapá CEP 68903-419, Amapá, Brazil
- University Hospital of the Federal University of Amapá, R. do Estádio Zerão, Macapá CEP 68902-336, Amapá, Brazil
- Correspondence:
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Ren J, Xu G, Sun H, Lin T, Xu S, Zhao Y. Inhibition of miR-483-5p improves the proliferation, invasion and inflammatory response of triple-negative breast cancer cells by targeting SOCS3. Exp Ther Med 2021; 22:1047. [PMID: 34434261 PMCID: PMC8353637 DOI: 10.3892/etm.2021.10480] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 04/21/2021] [Indexed: 01/26/2023] Open
Abstract
microRNAs (miRs) have been indicated to serve oncogenic or tumor suppressor roles. However, the role of miR-483-5p in breast cancer and its associated molecular mechanisms remain unclear. In the present study, compared with adjacent normal tissues and MCF-10a cells, the expression level of miR-483-5p was upregulated in triple-negative breast cancer (TNBC) tissues and TNBC cell lines. Bioinformatic analysis and luciferase reporter assay confirmed the presence of miR-483-5p binding sites in the 3'-untranslated region of suppressor of cytokine signaling 3 (SOCS3). In addition, the expression level of SOCS3 protein in TNBC tissues was markedly lower compared with in adjacent tissues, and miR-483-5p expression was negatively correlated with SOCS3 expression in TNBC tissues. Cell proliferation and flow cytometry assays indicated that knockdown of miR-483-5p inhibited the proliferation and promoted apoptosis in the TNBC cell line BT-549. This effect was markedly attenuated by SOCS3 small interfering (si)RNA transfection. Additionally, wound healing and Transwell assays demonstrated that SOCS3 siRNA reversed the inhibitory effects of miR-483-5p inhibitor on the migration and invasion of BT-549 cells. Moreover, the decrease in miR-483-5p expression significantly reduced the secretion of TNF-α, IL-6, IL-1β and monocyte chemoattractant protein-1 in BT-549 cells, while SOCS3 siRNA could partially reverse this effect. Additionally, SOCS3 overexpression reversed the effects of miR-483-5p mimic on the proliferation, migration, invasion and inflammation of BT-549 cells. Taken together, these data demonstrated that the inhibition of miR-483-5p could inhibit the proliferation, migration, invasion and inflammatory response, while promoting the apoptosis of TNBC cells by negatively regulating SOCS3. miR-483-5p may be a potential target for TNBC therapy.
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Affiliation(s)
- Jianbo Ren
- Department of Oncology, Yantai Muping Hospital of Traditional Chinese Medicine, Yantai, Shandong 264100, P.R. China
| | - Gang Xu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital and Institute, Beijing 100142, P.R. China
| | - Hongyan Sun
- Endoscopy Center, Yantai Muping Hospital of Traditional Chinese Medicine, Yantai, Shandong 264100, P.R. China
| | - Ting Lin
- Department of Breast Surgery, Tangshan People's Hospital, Lunan, Tangshan, Hebei 063000, P.R. China
| | - Sanhui Xu
- 1st Laboratory Department, Xingtai People's Hospital, Xingtai, Hebei 054000, P.R. China
| | - Yating Zhao
- Breast Health Department, Tangshan Maternal Child Health Care Hospital, Tangshan, Hebei 063000, P.R. China
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Al-jubori AA, Sulaiman GM, Tawfeeq AT, Mohammed HA, Khan RA, Mohammed SAA. Layer-by-Layer Nanoparticles of Tamoxifen and Resveratrol for Dual Drug Delivery System and Potential Triple-Negative Breast Cancer Treatment. Pharmaceutics 2021; 13:1098. [PMID: 34371789 PMCID: PMC8309206 DOI: 10.3390/pharmaceutics13071098] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/07/2021] [Accepted: 07/13/2021] [Indexed: 12/27/2022] Open
Abstract
Nanoparticle development demonstrates use in various physicochemical, biological, and functional properties for biomedical applications, including anti-cancer applications. In the current study, a cancer therapeutic conjugate was produced consisting of tamoxifen (TAM) and resveratrol (RES) by layer-by-layer (LbL) nanoparticles based on lipid-based drug delivery systems and liquid crystalline nanoparticles (LCNPs) coated with multiple layers of positively charged chitosan and negatively charged hyaluronic acid for the evaluation of biocompatibility and therapeutic properties against cancer cells. Multiple techniques characterized the synthesis of TAM/RES-LbL-LCNPs, such as Fourier-transform infrared spectroscopy (FTIR), X-ray crystallography (XRD), Zeta potential analysis, particle size analysis, Field Emission Scanning Electron Microscope (FESEM), and Transmission electron microscopy (TEM). The in vitro cytotoxic effects of TAM/RES-LbL-LCNPs were investigated against human breast cancer cell line, Michigan Cancer Foundation-7 (MCF-7), and human triple-negative breast cancer cell line, Centre Antoine Lacassagne-51 (CAL-51), using various parameters. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay confirmed that the treatment of cells with TAM/RES-LbL-LCNPs caused a reduction in cell proliferation, and no such inhibition was observed with human normal liver cell line: American Type Culture Collection Cell Line-48 (WRL-68 [ATCC CL-48]). Fluorescent microscopy examined the ability of Fluorescein isothiocyanate (FITC) to bind to TAM/RES-LbL-LCNPs along with their cellular uptake. Apoptosis determination was performed using hematoxylin-eosin and acridine orange-propidium iodide double staining. The expression of P53 and caspase-8 was analyzed by flow cytometry analysis. An in vivo study determined the toxicity of TAM/RES-LbL-LCNPs in mice and assessed the functional marker changes in the liver and kidneys. No significant statistical differences were found for the tested indicators. TAM/RES-LbL-LCNP treatment showed no apparent damages or histopathological abnormalities in the heart, lung, liver, spleen, and kidney histological images. The current findings observed for the first time propose that TAM/RES-LbL-LCNPs provide a new and safer method to use phytochemicals in combinatorial therapy and provide a novel treatment approach against breast cancers.
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Affiliation(s)
- Ali A. Al-jubori
- Division of Biotechnology, Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq; (A.A.A.-j.); (G.M.S.)
| | - Ghassan M. Sulaiman
- Division of Biotechnology, Department of Applied Sciences, University of Technology, Baghdad 10066, Iraq; (A.A.A.-j.); (G.M.S.)
| | - Amer T. Tawfeeq
- Molecular Biology Department, Iraqi Center for Cancer and Medical Genetics Research, Mustansiriyah University, Baghdad 10052, Iraq;
| | - Hamdoon A. Mohammed
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Qassim 51452, Saudi Arabia; (H.A.M.); (R.A.K.)
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Cairo 11371, Egypt
| | - Riaz A. Khan
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, Qassim University, Qassim 51452, Saudi Arabia; (H.A.M.); (R.A.K.)
| | - Salman A. A. Mohammed
- Department of Pharmacology and Toxicology, College of Pharmacy, Qassim University, Qassim 51452, Saudi Arabia
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Chen H, Yang J, Yang Y, Zhang J, Xu Y, Lu X. The Natural Products and Extracts: Anti-Triple-Negative Breast Cancer in Vitro. Chem Biodivers 2021; 18:e2001047. [PMID: 34000082 DOI: 10.1002/cbdv.202001047] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/17/2021] [Indexed: 11/10/2022]
Abstract
Triple-negative breast cancer (TNBC) makes up 15 % to 20 % of all breast cancer (BC) cases, and represents one of the most challenging malignancies to treat. For many years, chemotherapy has been the main treatment option for TNBC. Natural products isolated from marine organisms and terrestrial organisms with great structural diversity and high biochemical specificity form a compound library for the assessment and discovery of new drugs. In this review, we mainly focused on natural compounds and extracts (from marine and terrestrial environments) with strong anti-TNBC activities (IC50 <100 μM) and their possible mechanisms reported in the past six years (2015-2021).
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Affiliation(s)
- Han Chen
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
| | - Jiaping Yang
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
| | - Yanlong Yang
- School of Traditional Chinese Medicine, Naval Medical University, 200433, Shanghai, P. R. China
| | - Jianpeng Zhang
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
| | - Yao Xu
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
| | - Xiaoling Lu
- College of Basic Medical Sciences, Department of Biochemistry and Molecular Biology, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
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Sánchez-Monroy MB, León-Rivera I, Llanos-Romero RE, García-Bores AM, Guevara-Fefer P. Cytotoxic activity and triterpenes content of nine Mexican species of Bursera. Nat Prod Res 2020; 35:4881-4885. [PMID: 32174184 DOI: 10.1080/14786419.2020.1739680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The genus Bursera (Burseraceae) is considered an interesting source of antitumour compounds. This study aimed to evaluate the cytotoxic activity of the dichloromethane-soluble extracts from the bark of nine Mexican Bursera species. The chemical components of the extracts were determined by NMR and mass spectroscopy, whereas its cytotoxicity was tested using the sulphorhodamine (SRB) method on seven cell lines. Triterpenes and fatty acids were the most abundant components found in the extracts. A quantification by HPTLC - densitometry, showed that the species B. copallifera had the highest content of amyrins (287 µg/mg extract) followed by B. submoniliformis (159.5 µg/mg) and B. bicolor (156.5 µg/mg). Regarding cytotoxicicity, the species B. bicolor caused the highest growth inhibition (>90%) in colon (HCT-15) and lung (SK-LU1) lines; while B. fagaroides, B. grandifolia, B. morelensis, B. bicolor and B. linanoe were active in the SK-LU1cell line.
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Affiliation(s)
- Ma Beatriz Sánchez-Monroy
- Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, CdMx, México
| | - Ismael León-Rivera
- Centro de Investigaciones Químicas, IICBA, Universidad Autónoma del Estado de Morelos, Cuernavaca, Morelos, México
| | - R Enrique Llanos-Romero
- Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, CdMx, México
| | - Ana María García-Bores
- Laboratorio de Fitoquímica, UBIPRO, Facultad de Estudios Superiores-Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, Edo. de México, México
| | - Patricia Guevara-Fefer
- Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Coyoacán, CdMx, México
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Structure-Based Classification and Anti-Cancer Effects of Plant Metabolites. Int J Mol Sci 2018; 19:ijms19092651. [PMID: 30200668 PMCID: PMC6163735 DOI: 10.3390/ijms19092651] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 09/04/2018] [Accepted: 09/05/2018] [Indexed: 12/28/2022] Open
Abstract
A variety of malignant cancers affect the global human population. Although a wide variety of approaches to cancer treatment have been studied and used clinically (surgery, radiotherapy, chemotherapy, and immunotherapy), the toxic side effects of cancer therapies have a negative impact on patients and impede progress in conquering cancer. Plant metabolites are emerging as new leads for anti-cancer drug development. This review summarizes these plant metabolites with regard to their structures and the types of cancer against which they show activity, organized by the organ or tissues in which each cancer forms. This information will be helpful for understanding the current state of knowledge of the anti-cancer effects of various plant metabolites against major types of cancer for the further development of novel anti-cancer drugs.
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