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Siquara da Rocha LDO, de Morais EF, de Oliveira LQR, Barbosa AV, Lambert DW, Gurgel Rocha CA, Coletta RD. Exploring beyond Common Cell Death Pathways in Oral Cancer: A Systematic Review. Biology (Basel) 2024; 13:103. [PMID: 38392321 PMCID: PMC10886582 DOI: 10.3390/biology13020103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/17/2024] [Accepted: 02/01/2024] [Indexed: 02/24/2024]
Abstract
Oral squamous cell carcinoma (OSCC) is the most common and lethal type of head and neck cancer in the world. Variable response and acquisition of resistance to traditional therapies show that it is essential to develop novel strategies that can provide better outcomes for the patient. Understanding of cellular and molecular mechanisms of cell death control has increased rapidly in recent years. Activation of cell death pathways, such as the emerging forms of non-apoptotic programmed cell death, including ferroptosis, pyroptosis, necroptosis, NETosis, parthanatos, mitoptosis and paraptosis, may represent clinically relevant novel therapeutic opportunities. This systematic review summarizes the recently described forms of cell death in OSCC, highlighting their potential for informing diagnosis, prognosis and treatment. Original studies that explored any of the selected cell deaths in OSCC were included. Electronic search, study selection, data collection and risk of bias assessment tools were realized. The literature search was carried out in four databases, and the extracted data from 79 articles were categorized and grouped by type of cell death. Ferroptosis, pyroptosis, and necroptosis represented the main forms of cell death in the selected studies, with links to cancer immunity and inflammatory responses, progression and prognosis of OSCC. Harnessing the potential of these pathways may be useful in patient-specific prognosis and individualized therapy. We provide perspectives on how these different cell death types can be integrated to develop decision tools for diagnosis, prognosis, and treatment of OSCC.
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Affiliation(s)
- Leonardo de Oliveira Siquara da Rocha
- Department of Pathology and Forensic Medicine, School of Medicine, Federal University of Bahia, Salvador 40110-100, BA, Brazil
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
| | - Everton Freitas de Morais
- Graduate Program in Oral Biology and Department of Oral Diagnosis, School of Dentistry, University of Campinas, Piracicaba 13414-018, SP, Brazil
| | - Lilianny Querino Rocha de Oliveira
- Graduate Program in Oral Biology and Department of Oral Diagnosis, School of Dentistry, University of Campinas, Piracicaba 13414-018, SP, Brazil
| | - Andressa Vollono Barbosa
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
| | - Daniel W Lambert
- School of Clinical Dentistry, The University of Sheffield, Sheffield S10 2TA, UK
| | - Clarissa A Gurgel Rocha
- Department of Pathology and Forensic Medicine, School of Medicine, Federal University of Bahia, Salvador 40110-100, BA, Brazil
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
- Department of Propaedeutics, School of Dentistry, Federal University of Bahia, Salvador 40110-909, BA, Brazil
- D'Or Institute for Research and Education (IDOR), Salvador 41253-190, BA, Brazil
| | - Ricardo D Coletta
- Graduate Program in Oral Biology and Department of Oral Diagnosis, School of Dentistry, University of Campinas, Piracicaba 13414-018, SP, Brazil
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Freitas de Morais E, Siquara da Rocha LDO, de Souza Santos JL, Freitas RD, Souza BSDF, Coletta RD, Gurgel Rocha CA. Use of Three-Dimensional Cell Culture Models in Drug Assays for Anti-Cancer Agents in Oral Cancer: Protocol for a Scoping Review. J Pers Med 2023; 13:1618. [PMID: 38003933 PMCID: PMC10672016 DOI: 10.3390/jpm13111618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/13/2023] [Accepted: 10/19/2023] [Indexed: 11/26/2023] Open
Abstract
Advances in the development of pharmacological treatment in oral cancer require tumor models capable of simulating the complex biology of the tumor microenvironment. The spread of three-dimensional models has changed the scenery of in vitro cell culture techniques, contributing to translational oncology. Still, the full extent of their application in preclinical drug trials is yet to be understood. Therefore, the present scoping review protocol was established to screen the literature on using three-dimensional cell culture models in drug-testing assays in the context of oral cancer. This scoping review will be conducted based on the guidelines established by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Review guidelines (PRISMA-ScR). We will search the PubMed/Medline, Web of Science, Scopus, and Embase databases, as well as the gray literature, including peer-reviewed research articles involving 3D models applied to drug-assessment assays in oral cancer published from 1 March 2013 until 1 March 2023. Data will be charted, and findings will be described according to the predetermined questions of interest. We will present these findings in a narrative manner.
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Affiliation(s)
- Everton Freitas de Morais
- Department of Oral Diagnosis, School of Dentistry, University of Campinas (UNICAMP), Piracicaba 13414-903, SP, Brazil; (E.F.d.M.); (R.D.C.)
| | - Leonardo de Oliveira Siquara da Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil; (L.d.O.S.d.R.); (J.L.d.S.S.); (B.S.d.F.S.)
- Department of Pathology and Forensic Medicine, School of Medicine, Federal University of Bahia, Salvador 40110-100, BA, Brazil
| | - John Lenon de Souza Santos
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil; (L.d.O.S.d.R.); (J.L.d.S.S.); (B.S.d.F.S.)
- Department of Pathology and Forensic Medicine, School of Medicine, Federal University of Bahia, Salvador 40110-100, BA, Brazil
| | - Raíza Dias Freitas
- Department of Social and Pediatric Dentistry, School of Dentistry, Federal University of Bahia, Salvador 40110-150, BA, Brazil;
| | - Bruno Solano de Freitas Souza
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil; (L.d.O.S.d.R.); (J.L.d.S.S.); (B.S.d.F.S.)
- D’Or Institute for Research and Education (IDOR), Salvador 41253-190, BA, Brazil
| | - Ricardo D. Coletta
- Department of Oral Diagnosis, School of Dentistry, University of Campinas (UNICAMP), Piracicaba 13414-903, SP, Brazil; (E.F.d.M.); (R.D.C.)
- Graduate Program in Oral Biology, School of Dentistry, University of Campinas, Piracicaba 13414-903, SP, Brazil
| | - Clarissa A. Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil; (L.d.O.S.d.R.); (J.L.d.S.S.); (B.S.d.F.S.)
- Department of Pathology and Forensic Medicine, School of Medicine, Federal University of Bahia, Salvador 40110-100, BA, Brazil
- D’Or Institute for Research and Education (IDOR), Salvador 41253-190, BA, Brazil
- Graduate Program in Oral Biology, School of Dentistry, University of Campinas, Piracicaba 13414-903, SP, Brazil
- Department of Propaedeutics, School of Dentistry, Federal University of Bahia, Salvador 40110-150, BA, Brazil
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Siquara da Rocha LDO, Souza BSDF, Coletta RD, Lambert DW, Gurgel Rocha CA. Mapping Cell-in-Cell Structures in Oral Squamous Cell Carcinoma. Cells 2023; 12:2418. [PMID: 37830632 PMCID: PMC10572403 DOI: 10.3390/cells12192418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/10/2023] [Accepted: 09/11/2023] [Indexed: 10/14/2023] Open
Abstract
Cell-in-cell (CIC) structures contribute to tumor aggressiveness and poor prognosis in oral squamous cell carcinoma (OSCC). In vitro 3D models may contribute to the understanding of the underlying molecular mechanisms of these events. We employed a spheroid model to study the CIC structures in OSCC. Spheroids were obtained from OSCC (HSC3) and cancer-associated fibroblast (CAF) lines using the Nanoshuttle-PLTM bioprinting system (Greiner Bio-One). Spheroid form, size, and reproducibility were evaluated over time (EvosTM XL; ImageJ version 1.8). Slides were assembled, stained (hematoxylin and eosin), and scanned (Axio Imager Z2/VSLIDE) using the OlyVIA System (Olympus Life Science) and ImageJ software (NIH) for cellular morphology and tumor zone formation (hypoxia and/or proliferative zones) analysis. CIC occurrence, complexity, and morphology were assessed considering the spheroid regions. Well-formed spheroids were observed within 6 h of incubation, showing the morphological aspects of the tumor microenvironment, such as hypoxic (core) and proliferative zone (periphery) formation. CIC structures were found in both homotypic and heterotypic groups, predominantly in the proliferative zone of the mixed HSC3/CAF spheroids. "Complex cannibalism" events were also noted. These results showcase the potential of this model in further studies on CIC morphology, formation, and relationship with tumor prognosis.
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Affiliation(s)
- Leonardo de Oliveira Siquara da Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil; (L.d.O.S.d.R.); (B.S.d.F.S.)
- Department of Pathology and Forensic Medicine, School of Medicine, Federal University of Bahia, Salvador 40110-100, BA, Brazil
| | - Bruno Solano de Freitas Souza
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil; (L.d.O.S.d.R.); (B.S.d.F.S.)
- D’Or Institute for Research and Education (IDOR), Salvador 41253-190, BA, Brazil
| | - Ricardo Della Coletta
- Department of Oral Diagnosis, School of Dentistry, University of Campinas, Piracicaba 13414-903, SP, Brazil
- Graduate Program in Oral Biology, School of Dentistry, University of Campinas, Piracicaba 13414-903, SP, Brazil
| | - Daniel W. Lambert
- School of Clinical Dentistry, The University of Sheffield, Sheffield S10 2TA, UK
| | - Clarissa A. Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil; (L.d.O.S.d.R.); (B.S.d.F.S.)
- Department of Pathology and Forensic Medicine, School of Medicine, Federal University of Bahia, Salvador 40110-100, BA, Brazil
- D’Or Institute for Research and Education (IDOR), Salvador 41253-190, BA, Brazil
- Department of Propaedeutics, School of Dentistry, Federal University of Bahia, Salvador 40110-150, BA, Brazil
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Nogueira RLR, de Araújo TBS, Valverde LF, Silva VAO, Cavalcante BRR, Rossi EA, Allahdadi KJ, dos Reis MG, Pereira TA, Coletta RD, Bezerra DP, de Freitas Souza BS, Dias RB, Rocha CAG. Arsenic Trioxide Triggers Apoptosis of Metastatic Oral Squamous Cells Carcinoma with Concomitant Downregulation of GLI1 in Hedgehog Signaling. Biomedicines 2022; 10:biomedicines10123293. [PMID: 36552049 PMCID: PMC9775978 DOI: 10.3390/biomedicines10123293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
Given the lack of advances in Oral Squamous Cell Carcinoma (OSCC) therapy in recent years, pharmacological strategies to block OSCC-related signaling pathways have gained prominence. The present study aimed to evaluate the therapeutic potential of Arsenic Trioxide (ATO) concerning its antitumoral effects and the inhibition of the Hedgehog (HH) pathway in OSCC. Initially, ATO cytotoxicity was assessed in a panel of cell lines. Cell viability, cell cycle, death patterns, and cell morphology were analyzed, as well as the effect of ATO on the expression of HH pathway components. After the cytotoxic assay, HSC3 cells were chosen for all in vitro assays. ATO increased apoptotic cell death and nuclear fragmentation in the sub-G1 cell cycle phase and promoted changes in cell morphology. In addition, the reduced expression of GLI1 indicated that ATO inhibits HH activity. The present study provides evidence of ATO as an effective cytotoxic drug for oral cancer treatment in vitro.
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Affiliation(s)
- Raphael Luís Rocha Nogueira
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Pathology, School of Medicine of the Federal University of Bahia, Salvador 40110-909, Bahia, Brazil
| | - Taís Bacelar Sacramento de Araújo
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Propedeutics, School of Dentistry of the Federal University of Bahia, Salvador 40100-150, Bahia, Brazil
| | - Ludmila Faro Valverde
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Propedeutics, School of Dentistry of the Federal University of Bahia, Salvador 40100-150, Bahia, Brazil
| | - Viviane Aline Oliveira Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Pathology, School of Medicine of the Federal University of Bahia, Salvador 40110-909, Bahia, Brazil
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos 14784-400, São Paulo, Brazil
| | - Bruno Raphael Ribeiro Cavalcante
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Pathology, School of Medicine of the Federal University of Bahia, Salvador 40110-909, Bahia, Brazil
| | - Erik Aranha Rossi
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Pathology, School of Medicine of the Federal University of Bahia, Salvador 40110-909, Bahia, Brazil
- Center for Biotechnology and Cell Therapy, D’Or Institute for Research and Education (IDOR), São Rafael Hospital, Salvador 41253-190, Bahia, Brazil
| | - Kyan James Allahdadi
- Center for Biotechnology and Cell Therapy, D’Or Institute for Research and Education (IDOR), São Rafael Hospital, Salvador 41253-190, Bahia, Brazil
| | - Mitermayer Galvão dos Reis
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Pathology, School of Medicine of the Federal University of Bahia, Salvador 40110-909, Bahia, Brazil
| | - Thiago Almeida Pereira
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University, Stanford, CA 94305, USA
| | - Ricardo D. Coletta
- Department of Oral Diagnosis, School of Dentistry University of Campinas, Piracicaba 13414-903, São Paulo, Brazil
- Graduate Program in Oral Biology, School of Dentistry University of Campinas, Piracicaba 13414-903, São Paulo, Brazil
| | - Daniel Pereira Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
| | - Bruno Solano de Freitas Souza
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Pathology, School of Medicine of the Federal University of Bahia, Salvador 40110-909, Bahia, Brazil
- Center for Biotechnology and Cell Therapy, D’Or Institute for Research and Education (IDOR), São Rafael Hospital, Salvador 41253-190, Bahia, Brazil
| | - Rosane Borges Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Propedeutics, School of Dentistry of the Federal University of Bahia, Salvador 40100-150, Bahia, Brazil
| | - Clarissa A. Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, Bahia, Brazil
- Department of Pathology, School of Medicine of the Federal University of Bahia, Salvador 40110-909, Bahia, Brazil
- Department of Propedeutics, School of Dentistry of the Federal University of Bahia, Salvador 40100-150, Bahia, Brazil
- Center for Biotechnology and Cell Therapy, D’Or Institute for Research and Education (IDOR), São Rafael Hospital, Salvador 41253-190, Bahia, Brazil
- Correspondence: ; Tel.: +55-71-3176-2209
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Fontes SS, Nogueira ML, Dias RB, Rocha CAG, Soares MBP, Vannier-Santos MA, Bezerra DP. Combination Therapy of Curcumin and Disulfiram Synergistically Inhibits the Growth of B16-F10 Melanoma Cells by Inducing Oxidative Stress. Biomolecules 2022; 12:1600. [PMID: 36358950 PMCID: PMC9687191 DOI: 10.3390/biom12111600] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/11/2022] [Accepted: 10/16/2022] [Indexed: 10/05/2023] Open
Abstract
Oxidative stress plays a central role in the pathophysiology of melanoma. Curcumin (CUR) is a polyphenolic phytochemical that stimulates reactive oxygen species (ROS) production, while disulfiram (DSS) is a US FDA-approved drug for the treatment of alcoholism that can act by inhibiting the intracellular antioxidant system. Therefore, we hypothesized that they act synergistically against melanoma cells. Herein, we aimed to study the antitumor potential of the combination of CUR with DSS in B16-F10 melanoma cells using in vitro and in vivo models. The cytotoxic effects of different combination ratios of CUR and DSS were evaluated using the Alamar Blue method, allowing the production of isobolograms. Apoptosis detection, DNA fragmentation, cell cycle distribution, and mitochondrial superoxide levels were quantified by flow cytometry. Tumor development in vivo was evaluated using C57BL/6 mice bearing B16-F10 cells. The combinations ratios of 1:2, 1:3, and 2:3 showed synergic effects. B16-F10 cells treated with these combinations showed improved apoptotic cell death and DNA fragmentation. Enhanced mitochondrial superoxide levels were observed at combination ratios of 1:2 and 1:3, indicating increased oxidative stress. In vivo tumor growth inhibition for CUR (20 mg/kg), DSS (60 mg/kg), and their combination were 17.0%, 19.8%, and 28.8%, respectively. This study provided data on the potential cytotoxic activity of the combination of CUR with DSS and may provide a useful tool for the development of a therapeutic combination against melanoma.
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Affiliation(s)
- Sheila S. Fontes
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
| | - Mateus L. Nogueira
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
| | - Rosane B. Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
- Department of Propedeutics, School of Dentistry of the Federal University of Bahia, Salvador 40110-909, BA, Brazil
| | - Clarissa A. Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
- Department of Propedeutics, School of Dentistry of the Federal University of Bahia, Salvador 40110-909, BA, Brazil
| | - Milena B. P. Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
- SENAI Institute for Innovation in Advanced Health Systems, SENAI CIMATEC, Salvador 41650-010, BA, Brazil
| | | | - Daniel P. Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
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Costa EV, de Souza CAS, Galvão AFC, Silva VR, Santos LDS, Dias RB, Rocha CAG, Soares MBP, da Silva FMA, Koolen HHF, Bezerra DP. Duguetia pycnastera Sandwith (Annonaceae) Leaf Essential Oil Inhibits HepG2 Cell Growth In Vitro and In Vivo. Molecules 2022; 27:molecules27175664. [PMID: 36080430 PMCID: PMC9458038 DOI: 10.3390/molecules27175664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/18/2022] [Accepted: 08/25/2022] [Indexed: 11/24/2022] Open
Abstract
Duguetia pycnastera Sandwith (Annonaceae) is a tropical tree that can be found in the Guyanas, Bolivia, Venezuela, and Brazil. In Brazil, it is popularly known as “ata”, “envira”, “envira-preta”, and “envira-surucucu”. In the present work, we investigated the in vitro and in vivo HepG2 cell growth inhibition capacity of D. pycnastera leaf essential oil (EO). The chemical composition of the EO was determined by GC−MS and GC−FID analyses. The alamar blue assay was used to examine the in vitro cytotoxicity of EO in cancer cell lines and non-cancerous cells. In EO-treated HepG2 cells, DNA fragmentation was measured by flow cytometry. The in vivo antitumor activity of the EO was assessed in C.B-17 SCID mice xenografted with HepG2 cells treated with the EO at a dosage of 40 mg/kg. Chemical composition analysis displayed the sesquiterpenes α-gurjunene (26.83%), bicyclogermacrene (24.90%), germacrene D (15.35%), and spathulenol (12.97%) as the main EO constituents. The EO exhibited cytotoxicity, with IC50 values ranging from 3.28 to 39.39 μg/mL in the cancer cell lines SCC4 and CAL27, respectively. The cytotoxic activity of the EO in non-cancerous cells revealed IC50 values of 16.57, 21.28, and >50 μg/mL for MRC-5, PBMC, and BJ cells, respectively. An increase of the fragmented DNA content was observed in EO-treated HepG2 cells. In vivo, EO displayed tumor mass inhibition activity by 47.76%. These findings imply that D. pycnastera leaf EO may have anti-liver cancer properties.
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Affiliation(s)
- Emmanoel V. Costa
- Department of Chemistry, Federal University of Amazonas (UFAM), Manaus 69080-900, AM, Brazil
- Correspondence: (E.V.C.); (D.P.B.); Tel./Fax: +55-92-3305-1181 (E.V.C.); +55-71-3176-2272 (D.P.B.)
| | - César A. S. de Souza
- Department of Chemistry, Federal University of Amazonas (UFAM), Manaus 69080-900, AM, Brazil
| | - Alexandre F. C. Galvão
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
| | - Valdenizia R. Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
| | - Luciano de S. Santos
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
| | - Rosane B. Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
- Department of Propedeutics, School of Dentistry of the Federal University of Bahia, Salvador 40110-909, BA, Brazil
| | - Clarissa A. Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
- Department of Propedeutics, School of Dentistry of the Federal University of Bahia, Salvador 40110-909, BA, Brazil
| | - Milena B. P. Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
- SENAI Institute of Innovation (ISI) in Health Advanced Systems, University Center SENAI/CIMATEC, Salvador 41650-010, BA, Brazil
| | - Felipe M. A. da Silva
- Department of Chemistry, Federal University of Amazonas (UFAM), Manaus 69080-900, AM, Brazil
| | - Hector H. F. Koolen
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), Manaus 690065-130, AM, Brazil
| | - Daniel P. Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador 40296-710, BA, Brazil
- Correspondence: (E.V.C.); (D.P.B.); Tel./Fax: +55-92-3305-1181 (E.V.C.); +55-71-3176-2272 (D.P.B.)
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Rodrigues ACBDC, Bomfim LM, Neves SP, Soares MBP, Dias RB, Valverde LF, Rocha CAG, Costa EV, da Silva FMA, Rocha WC, Koolen HHF, Bezerra DP. Tingenone and 22-hydroxytingenone target oxidative stress through downregulation of thioredoxin, leading to DNA double-strand break and JNK/p38-mediated apoptosis in acute myeloid leukemia HL-60 cells. Biomed Pharmacother 2021; 142:112034. [PMID: 34411914 DOI: 10.1016/j.biopha.2021.112034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/27/2021] [Accepted: 08/07/2021] [Indexed: 11/27/2022] Open
Abstract
Acute myeloid leukemia (AML) is the most lethal form of leukemia. Standard anti-AML treatment remains almost unchanged for decades. Tingenone (TG) and 22-hydroxytingenone (22-HTG) are quinonemethide triterpenes found in the Amazonian plant Salacia impressifolia (Celastraceae), with cytotoxic properties in different histological types of cancer cells. In the present work, we investigated the anti-AML action mechanism of TG and 22-HTG in the AML HL-60 cell line. Both compounds exhibited potent cytotoxicity in a panel of cancer cell lines. Mechanistic studies found that TG and 22-HTG reduced cell growth and caused the externalization of phosphatidylserine, the fragmentation of internucleosomal DNA and the loss of mitochondrial transmembrane potential in HL-60 cells. In addition, pre-incubation with Z-VAD(OMe)-FMK, a pan-caspase inhibitor, prevented TG- and 22-HTG-induced apoptosis, indicating cell death by apoptosis via a caspase-dependent pathway. The analysis of the RNA transcripts of several genes indicated the interruption of the cellular antioxidant system, including the downregulation of thioredoxin, as a target for TG and 22-HTG. The application of N-acetyl-cysteine, an antioxidant, completely prevented apoptosis induced by TG and 22-HTG, indicating activation of the apoptosis pathway mediated by oxidative stress. Moreover, TG and 22-HTG induced DNA double-strand break and phosphorylation of JNK2 (T183/Y185) and p38α (T180/Y182), and co-incubation with SP 600125 (JNK/SAPK inhibitor) and PD 169316 (p38 MAPK inhibitor) partially prevented apoptosis induced by TG and 22-HTG. Together, these data indicate that TG and 22-HTG are new candidate for anti-AML therapy targeting thioredoxin.
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Affiliation(s)
| | - Larissa M Bomfim
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia 40296-710, Brazil
| | - Sara P Neves
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia 40296-710, Brazil
| | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia 40296-710, Brazil; SENAI Institute for Innovation in Advanced Health Systems, SENAI CIMATEC, Salvador, BA 41650-010, Brazil
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia 40296-710, Brazil; Department of Clinical Propaedeutics and Integrated Clinical, Faculty of Dentistry, Federal University of Bahia (UFBA), Salvador, Bahia 40301-155, Brazil
| | - Ludmila F Valverde
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia 40296-710, Brazil
| | - Clarissa A Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia 40296-710, Brazil; Department of Clinical Propaedeutics and Integrated Clinical, Faculty of Dentistry, Federal University of Bahia (UFBA), Salvador, Bahia 40301-155, Brazil
| | - Emmanoel V Costa
- Department of Chemistry, Federal University of Amazonas (UFAM), Manaus, Amazonas 69080-900, Brazil
| | - Felipe M A da Silva
- Department of Chemistry, Federal University of Amazonas (UFAM), Manaus, Amazonas 69080-900, Brazil
| | - Waldireny C Rocha
- Health and Biotechnology Institute, Federal University of Amazonas (UFAM), Coari, Amazonas 69460-000, Brazil
| | - Hector H F Koolen
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), Manaus, Amazonas 690065-130, Brazil
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia 40296-710, Brazil.
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de Oliveira FP, da C Rodrigues ACB, de Lima EJSP, Silva VR, de S Santos L, da Anunciação TA, Nogueira ML, Soares MBP, Dias RB, Gurgel Rocha CA, Duvoisin Junior S, Albuquerque PM, Lima ES, Gonçalves JFC, Bataglion GA, Costa EV, da Silva FMA, Koolen HHF, Bezerra DP. Essential Oil from Bark of Aniba parviflora (Meisn.) Mez (Lauraceae) Reduces HepG2 Cell Proliferation and Inhibits Tumor Development in a Xenograft Model. Chem Biodivers 2021; 18:e2000938. [PMID: 33508178 DOI: 10.1002/cbdv.202000938] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/28/2021] [Indexed: 11/11/2022]
Abstract
Aniba parviflora (Meisn.) Mez (Lauraceae) is an aromatic plant of the Amazon rainforest, which has a tremendous commercial value in the perfumery industry; it is popularly used as flavoring sachets and aromatic baths. In Brazilian folk medicine, A. parviflora is used to treat victims of snakebites. Herein, we analyzed the chemical composition of A. parviflora bark essential oil (EO) and its effect on the growth of human hepatocellular carcinoma HepG2 cells in vitro and in vivo. EO was obtained by hydrodistillation and characterized by GC-MS and GC-FID. The main constituents of EO were linalool (16.3±3.15), α-humulene (14.5±2.41 %), δ-cadinene (10.2±1.09 %), α-copaene (9.51±1.12 %) and germacrene B (7.58±2.15 %). Initially, EO's cytotoxic effect was evaluated against five cancer cell lines (HepG2, MCF-7, HCT116, HL-60 and B16-F10) and one non-cancerous one (MRC-5), using the Alamar blue method after 72 h of treatment. The calculated IC50 values were 9.05, 22.04, >50, 15.36, 17.57, and 30.46 μg/mL, respectively. The best selectivity was for HepG2 cells with a selective index of 3.4. DNA Fragmentation and cell cycle distribution were quantified in HepG2 cells by flow cytometry after a treatment period of 24 and 48 h. The effect of EO on tumor development in vivo was evaluated in a xenograft model using C.B-17 SCID mice engrafted with HepG2 cells. In vivo tumor growth inhibition of HepG2 xenograft at the doses of 40 and 80 mg/kg were 12.1 and 62.4 %, respectively.
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Affiliation(s)
- Felipe P de Oliveira
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | | | - Emilly J S P de Lima
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), 690065-130, Manaus, Amazonas, Brazil or
| | - Valdenizia R Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Luciano de S Santos
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Talita A da Anunciação
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Mateus L Nogueira
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or.,School of Medicine and School of Dentistry, Federal University of Bahia, 40301-155, Salvador, Bahia, Brazil
| | - Clarissa A Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or.,School of Medicine and School of Dentistry, Federal University of Bahia, 40301-155, Salvador, Bahia, Brazil
| | - Sérgio Duvoisin Junior
- Laboratory of Applied Chemistry and Technology, Amazonas State University (UEA), 69050-020, Manaus, Amazonas, Brazil
| | - Patrícia M Albuquerque
- Laboratory of Applied Chemistry and Technology, Amazonas State University (UEA), 69050-020, Manaus, Amazonas, Brazil
| | - Emerson S Lima
- Faculty of Pharmacy, Federal University of Amazonas (UFAM), 69077-000, Manaus, Amazonas, Brazil
| | - José F C Gonçalves
- Laboratory of Plant Physiology and Biochemistry, National Institute for Amazonian Research (INPA), 69011-970, Manaus, Amazonas, Brazil
| | - Giovana A Bataglion
- Department of Chemistry, Federal University of Amazonas (UFAM), 69080-900, Manaus, Amazonas, Brazil
| | - Emmanoel V Costa
- Department of Chemistry, Federal University of Amazonas (UFAM), 69080-900, Manaus, Amazonas, Brazil
| | - Felipe M A da Silva
- Analytical Center, Multidisciplinary Support Center (CAM), Federal University of Amazonas (UFAM), 69080-900, Manaus, Amazonas, Brazil
| | - Hector H F Koolen
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), 690065-130, Manaus, Amazonas, Brazil or
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), 40296-710, Salvador, Bahia, Brazil or
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9
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Anunciação TAD, Costa RGA, Lima EJSPD, Silva VR, Santos LDS, Soares MBP, Dias RB, Rocha CAG, Costa EV, Silva FMAD, Koolen HHF, Bezerra DP. In vitro and in vivo inhibition of HCT116 cells by essential oils from bark and leaves of Virola surinamensis (Rol. ex Rottb.) Warb. (Myristicaceae). J Ethnopharmacol 2020; 262:113166. [PMID: 32730868 DOI: 10.1016/j.jep.2020.113166] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/16/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Virola surinamensis (Rol. ex Rottb.) Warb. (Myristicaceae), popularly known in Brazil as "mucuíba", "ucuúba", "ucuúba-branca" or "ucuúba do igapó", is a medicinal plant used to treat a variety of diseases, including infections, inflammatory processes and cancer. AIM OF THE STUDY In the present work, we investigated the chemical constituents and the in vitro and in vivo inhibition of human colon carcinoma HCT116 cells by essential oils obtained from the bark (EOB) and leaves (EOL) of V. surinamensis. MATERIALS AND METHODS EOB and EOL were obtained by hydrodistillation and analyzed via gas chromatography with flame ionization detection and gas chromatography coupled to mass spectrometry. In vitro cytotoxic activity was determined in cultured cancer cells HCT116, HepG2, HL-60, B16-F10 and MCF-7 and in a non-cancerous cell line MRC-5 by the Alamar blue assay after 72 h of treatment. Annexin V/propidium iodide staining, mitochondrial transmembrane potential and cell cycle distribution were evaluated by flow cytometry in HCT116 cells treated with essential oils after 24 and 48 h of treatment. The cells were also stained with May-Grunwald-Giemsa to analyze cell morphology. In vivo antitumor activity was evaluated in C.B-17 SCID mice with HCT116 cells. RESULTS The main constituents in EOB were aristolene (28.0 ± 3.1%), α-gurjunene (15.1 ± 2.4%), valencene (14.1 ± 1.9%), germacrene D (7.5 ± 0.9%), δ-guaiene (6.8 ± 1.0%) and β-elemene (5.4 ± 0.6%). On the other hand, EOL displayed α-farnesene (14.5 ± 1.5%), β-elemene (9.6 ± 2.3%), bicyclogermacrene (8.1 ± 2.0%), germacrene D (7.4 ± 0.7%) and α-cubebene (5.6 ± 1.1%) as main constituents. EOB showed IC50 values for cancer cells ranging from 9.41 to 29.52 μg/mL for HCT116 and B16-F10, while EOL showed IC50 values for cancer cells ranging from 7.07 to 26.70 μg/mL for HepG2 and HCT116, respectively. The IC50 value for a non-cancerous MRC-5 cell was 34.7 and 38.93 μg/mL for EOB and EOL, respectively. Both oils induced apoptotic-like cell death in HCT116 cells, as observed by the morphological characteristics of apoptosis, externalization of phosphatidylserine, mitochondrial depolarization and fragmentation of internucleosomal DNA. At a dose of 40 mg/kg, tumor mass inhibition rates were 57.9 and 44.8% in animals treated with EOB and EOL, respectively. CONCLUSIONS These data indicate V. surinamensis as possible herbal medicine in the treatment of colon cancer.
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Affiliation(s)
- Talita A da Anunciação
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil.
| | - Rafaela G A Costa
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil.
| | - Emilly J S P de Lima
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), Manaus, Amazonas, 690065-130, Brazil.
| | - Valdenizia R Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil.
| | - Luciano de S Santos
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil.
| | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil.
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil; Department of Clinical Propaedeutics and Integrated Clinical, Faculty of Dentistry, Federal University of Bahia (UFBA), Salvador, Bahia, 40301-155, Brazil.
| | - Clarissa A Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil; Department of Clinical Propaedeutics and Integrated Clinical, Faculty of Dentistry, Federal University of Bahia (UFBA), Salvador, Bahia, 40301-155, Brazil.
| | - Emmanoel V Costa
- Department of Chemistry, Federal University of Amazonas (UFAM), Manaus, Amazonas, 69080-900, Brazil.
| | - Felipe M A da Silva
- Department of Chemistry, Federal University of Amazonas (UFAM), Manaus, Amazonas, 69080-900, Brazil.
| | - Hector H F Koolen
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), Manaus, Amazonas, 690065-130, Brazil.
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil.
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10
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Lima EJSPD, Fontes SS, Nogueira ML, Silva VR, Santos LDS, D'Elia GMA, Dias RB, Sales CBS, Rocha CAG, Vannier-Santos MA, Soares MBP, Costa EV, Silva FMAD, Koolen HHF, Bezerra DP. Essential oil from leaves of Conobea scoparioides (Cham. & Schltdl.) Benth. (Plantaginaceae) causes cell death in HepG2 cells and inhibits tumor development in a xenograft model. Biomed Pharmacother 2020; 129:110402. [PMID: 32574969 DOI: 10.1016/j.biopha.2020.110402] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/30/2020] [Accepted: 06/13/2020] [Indexed: 12/24/2022] Open
Abstract
Conobea scoparioides (Cham. & Schltdl.) Benth. (syn. Sphaerotheca scoparioides Cham. & Schldtl.) (Plantaginaceae), popularly known as "pataqueira", "vassourinha-do-brejo" and/or "hierba-de-sapo", is a popular medicinal plant used to treat leishmaniasis, pain and beriberi. In addition, inhibition of cell adhesion, antioxidant, cytotoxic and leishmanicidal activities of compounds or fractions of C. scoparioides have been reported. In the present work, chemical constituents and in vitro and in vivo anti-liver cancer potential of essential oil (EO) from leaves of C. scoparioides were investigated using human hepatocellular carcinoma HepG2 cells as a cell model. EO was obtained by hydrodistillation using a Clevenger-type apparatus and characterized by GC-MS and GC-FID. The in vitro cytotoxic effect was evaluated on three human cancer cell lines (MCF-7, HepG2 and HCT116) and one human non-cancerous cell line (MRC-5) using the Alamar blue assay. Phosphatidylserine externalization and cell cycle distribution were quantified in HepG2 cells by flow cytometry after 48 h incubation. The effectiveness of EO in anti-liver cancer model was studied with HepG2 cells grafted on C.B. 17 SCID mice. The main constituents of EO were thymol methyl ether (62 %), thymol (16 %) and α-phellandrene (14 %). EO displayed an in vitro cytotoxic effect against all human cancer cell lines and caused externalization of phosphatidylserine and DNA fragmentation in HepG2 cells, suggesting induction of apoptotic-like cell death. In vivo tumor mass inhibition of 36.7 and 55.8 % was observed for treatment with EO at doses of 40 and 80 mg/kg, respectively. These results indicate in vitro and in vivo anti-liver cancer potential of EO from leaves of C. scoparioides.
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Affiliation(s)
- Emilly J S P de Lima
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), Manaus, Amazonas, 690065-130, Brazil
| | - Sheila S Fontes
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Mateus L Nogueira
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Valdenizia R Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Luciano de S Santos
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Gigliola M A D'Elia
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), Manaus, Amazonas, 690065-130, Brazil
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil; Department of Clinical Propaedeutics and Integrated Clinical, Faculty of Dentistry, Federal University of Bahia, Salvador, Bahia, 40301-155, Brazil
| | - Caroline B S Sales
- Department of Biomorphology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, 40110-902, Brazil
| | - Clarissa A Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil; Department of Clinical Propaedeutics and Integrated Clinical, Faculty of Dentistry, Federal University of Bahia, Salvador, Bahia, 40301-155, Brazil
| | | | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Emmanoel V Costa
- Department of Chemistry, Federal University of Amazonas (UFAM), Manaus, Amazonas, 69080-900, Brazil
| | - Felipe M A da Silva
- Department of Chemistry, Federal University of Amazonas (UFAM), Manaus, Amazonas, 69080-900, Brazil
| | - Hector H F Koolen
- Metabolomics and Mass Spectrometry Research Group, Amazonas State University (UEA), Manaus, Amazonas, 690065-130, Brazil.
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil.
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11
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Bomfim LM, de Araujo FA, Dias RB, Sales CBS, Rocha CAG, Correa RS, Soares MBP, Batista AA, Bezerra DP. Ruthenium(II) complexes with 6-methyl-2-thiouracil selectively reduce cell proliferation, cause DNA double-strand break and trigger caspase-mediated apoptosis through JNK/p38 pathways in human acute promyelocytic leukemia cells. Sci Rep 2019; 9:11483. [PMID: 31391500 PMCID: PMC6686011 DOI: 10.1038/s41598-019-47914-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 07/26/2019] [Indexed: 12/19/2022] Open
Abstract
Ruthenium(II) complexes with 6-methyl-2-thiouracil cis-[Ru(6m2tu)2(PPh3)2] (1) and [Ru(6m2tu)2(dppb)] (2) (where PPh3 = triphenylphosphine; dppb = 1,4-bis(diphenylphosphino)butane; and 6m2tu = 6-methyl-2-thiouracil) are potent cytotoxic agents and able to bind DNA. The aim of this study was to evaluate in vitro cellular underlying mechanism and in vivo effectiveness of these ruthenium(II) complexes in human acute promyelocytic leukemia HL-60 cells. Both complexes displayed potent and selective cytotoxicity in myeloid leukemia cell lines, and were detected into HL-60 cells. Reduction of the cell proliferation and augmented phosphatidylserine externalization, caspase-3, -8 and -9 activation and loss of mitochondrial transmembrane potential were observed in HL-60 cells treated with both complexes. Cotreatment with Z-VAD(OMe)-FMK, a pan-caspase inhibitor, reduced Ru(II) complexes-induced apoptosis. In addition, both metal complexes induced phosphorylation of histone H2AX (S139), JNK2 (T183/Y185) and p38α (T180/Y182), and cotreatment with JNK/SAPK and p38 MAPK inhibitors reduced complexes-induced apoptosis, indicating DNA double-strand break and activation of caspase-mediated apoptosis through JNK/p38 pathways. Complex 1 also reduced HL-60 cell growth in xenograft model. Overall, the outcome indicated the ruthenium(II) complexes with 6-methyl-2-thiouracil as a novel promising antileukemic drug candidates.
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Affiliation(s)
- Larissa M Bomfim
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, Brazil
| | - Fênix A de Araujo
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, Brazil
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, Brazil
| | - Caroline B S Sales
- Department of Biomorphology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, 40110-902, Brazil
| | | | - Rodrigo S Correa
- Department of Chemistry, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, 35400-000, Brazil
| | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, Brazil
| | - Alzir A Batista
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13561-901, Brazil
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, Brazil.
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12
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Silva SLR, Baliza IRS, Dias RB, Sales CBS, Rocha CAG, Soares MBP, Correa RS, Batista AA, Bezerra DP. Ru(II)-thymine complex causes DNA damage and apoptotic cell death in human colon carcinoma HCT116 cells mediated by JNK/p38/ERK1/2 via a p53-independent signaling. Sci Rep 2019; 9:11094. [PMID: 31366902 PMCID: PMC6668648 DOI: 10.1038/s41598-019-47539-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 07/19/2019] [Indexed: 12/19/2022] Open
Abstract
Ru(II)-thymine complex [Ru(PPh3)2(Thy)(bipy)]PF6 (where PPh3 = triphenylphosphine, Thy = thyminate and bipy = 2,2′-bipyridine) is a potent cytotoxic agent with ability to bind to DNA, inducing caspase-mediated apoptosis in leukemia cells. In this study, we investigated the mechanism underlying the cell death induction by Ru(II)-thymine complex in human colon carcinoma HCT116 cells, as well as its effect in xenograft tumor model. The Ru(II)-thymine complex increased significantly the percentage of apoptotic HCT116 cells. Co-treatment with a JNK/SAPK inhibitor, p38 MAPK inhibitor and MEK inhibitor, which inhibit the activation of ERK1/2, caused a marked reduction of the percentage of complex-induced apoptotic cells. Moreover, the Ru(II)-thymine complex induced an increase in phospho-JNK2 (T183/Y185), phospho-p38α (T180/Y182) and phospho-ERK1 (T202/Y204) levels in HCT116 cells. Treatment with the Ru(II)-thymine complex increased significantly the phospho-histone H2AX (S139) expression, a DNA damage marker. The expression of phospho-p53 (S15) and MDM2 were not changed, and the co-treatment with a p53 inhibitor (cyclic pifithrin-α) did not reduce the complex-induced apoptosis in HCT116 cells, indicating that the Ru(II)-thymine complex induces DNA damage-mediated apoptosis by JNK/p38/ERK1/2 via a p53-independent signaling. The Ru(II)-thymine complex (1 and 2 mg/kg/day) also inhibited HCT116 cell growth in a xenograft model, reducing the tumor mass at 32.6–40.1%. Altogether, indicate that the Ru(II)-thymine complex is a promising anti-colon cancer drug candidate.
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Affiliation(s)
- Suellen L R Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Ingrid R S Baliza
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Caroline B S Sales
- Department of Biomorphology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, 40110-902, Brazil
| | - Clarissa A Gurgel Rocha
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil
| | - Rodrigo S Correa
- Department of Chemistry, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, 35400-000, Brazil
| | - Alzir A Batista
- Department of Chemistry, Federal University of São Carlos, São Carlos, São Paulo, 13561-901, Brazil
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Bahia, 40296-710, Brazil.
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Neves SP, de Carvalho NC, da Silva MM, Rodrigues ACBC, Bomfim LM, Dias RB, Sales CBS, Rocha CAG, Soares MBP, Batista AA, Bezerra DP. Ruthenium Complexes Containing Heterocyclic Thioamidates Trigger Caspase-Mediated Apoptosis Through MAPK Signaling in Human Hepatocellular Carcinoma Cells. Front Oncol 2019; 9:562. [PMID: 31338323 PMCID: PMC6629894 DOI: 10.3389/fonc.2019.00562] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/10/2019] [Indexed: 12/24/2022] Open
Abstract
Herein, ruthenium complexes containing heterocyclic thioamidates [Ru(mmi)(bipy)(dppb)]PF6 (1), [Ru(tzdt)(bipy)(dppb)]PF6 (2), [Ru(dmp)(bipy)(dppb)]PF6 (3) and [Ru(mpca)(bipy)(dppb)]PF6 (4) were investigated for their cellular and molecular effects in cancer cell lines. Complexes 1 and 2 were the most potent of the four compounds against a panel of different cancer cell lines in monolayer cultures and showed potent cytotoxicity in a 3D model of multicellular spheroids that formed from human hepatocellular carcinoma HepG2 cells. In addition, both complexes were able to bind to DNA in a calf thymus DNA model. Compared to the controls, a reduction in cell proliferation, phosphatidylserine externalization, internucleosomal DNA fragmentation, and the loss of the mitochondrial transmembrane potential were observed in HepG2 cells that were treated with these complexes. Additionally, coincubation with a pan-caspase inhibitor (Z-VAD(OMe)-FMK) reduced the levels of apoptosis that were induced by these compounds compared to those in the negative controls, indicating that cell death through apoptosis occurred via a caspase-dependent pathway. Moreover, these complexes also induced the phosphorylation of ERK1/2, and coincubation with an MEK inhibitor (U0126), which is known to inhibit the activation of ERK1/2, but not JNK/SAPK and p38 MAPK inhibitors, reduced the complexes-induced apoptosis compared to that in the negative controls, indicating that the induction of apoptotic cell death occurred through ERK1/2 signaling in HepG2 cells. On the other hand, no increase in oxidative stress was observed in HepG2 cells treated with the complexes, and the complexes-induced apoptosis was not reduced with coincubation with the antioxidant N-acetylcysteine or a p53 inhibitor compared to that in the negative controls, indicating that apoptosis occurred via oxidative stress- and p53-independent pathways. Finally, these complexes also reduced the growth of HepG2 cells that were engrafted in C.B-17 SCID mice compared to that in the negative controls. These results indicated that these complexes are novel anticancer drug candidates for liver cancer treatment.
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Affiliation(s)
- Sara P Neves
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | | | - Monize M da Silva
- Department of Chemistry, Federal University of São Carlos, São Carlos, Brazil
| | | | - Larissa M Bomfim
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Caroline B S Sales
- Department of Biomorphology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | | | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Alzir A Batista
- Department of Chemistry, Federal University of São Carlos, São Carlos, Brazil
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
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14
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Baliza IRS, Silva SLR, Santos LDS, Neto JHA, Dias RB, Sales CBS, Rocha CAG, Soares MBP, Batista AA, Bezerra DP. Ruthenium Complexes With Piplartine Cause Apoptosis Through MAPK Signaling by a p53-Dependent Pathway in Human Colon Carcinoma Cells and Inhibit Tumor Development in a Xenograft Model. Front Oncol 2019; 9:582. [PMID: 31334116 PMCID: PMC6616125 DOI: 10.3389/fonc.2019.00582] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 06/14/2019] [Indexed: 01/22/2023] Open
Abstract
Ruthenium complexes with piplartine, [Ru(piplartine)(dppf)(bipy)](PF6)2 (1) and [Ru(piplartine)(dppb)(bipy)](PF6)2 (2) (dppf = 1,1-bis(diphenylphosphino) ferrocene; dppb = 1,4-bis(diphenylphosphino)butane and bipy = 2,2′-bipyridine), were recently synthesized and displayed more potent cytotoxicity than piplartine in different cancer cells, regulated RNA transcripts of several apoptosis-related genes, and induced reactive oxygen species (ROS)-mediated apoptosis in human colon carcinoma HCT116 cells. The present work aimed to explore the underlying mechanisms through which these ruthenium complexes induce cell death in HCT116 cells in vitro, as well as their in vivo action in a xenograft model. Both complexes significantly increased the percentage of apoptotic HCT116 cells, and co-treatment with inhibitors of JNK/SAPK, p38 MAPK, and MEK, which inhibits the activation of ERK1/2, significantly reduced the apoptosis rate induced by these complexes. Moreover, significant increase in phospho-JNK2 (T183/Y185), phospho-p38α (T180/Y182), and phospho-ERK1 (T202/Y204) expressions were observed in cells treated with these complexes, indicating MAPK-mediated apoptosis. In addition, co-treatment with a p53 inhibitor (cyclic pifithrin-α) and the ruthenium complexes significantly reduced the apoptosis rate in HCT116 cells, and increased phospho-p53 (S15) and phospho-histone H2AX (S139) expressions, indicating induction of DNA damage and p53-dependent apoptosis. Both complexes also reduced HCT116 cell growth in a xenograft model. Tumor mass inhibition rates were 35.06, 29.71, and 32.03% for the complex 1 (15 μmol/kg/day), complex 2 (15 μmol/kg/day), and piplartine (60 μmol/kg/day), respectively. These data indicate these ruthenium complexes as new anti-colon cancer drugs candidates.
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Affiliation(s)
- Ingrid R S Baliza
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Suellen L R Silva
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Luciano de S Santos
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - João H Araujo Neto
- Department of Chemistry, Federal University of São Carlos, São Carlos, Brazil
| | - Rosane B Dias
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Caroline B S Sales
- Department of Biomorphology, Institute of Health Sciences, Federal University of Bahia, Salvador, Brazil
| | | | - Milena B P Soares
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
| | - Alzir A Batista
- Department of Chemistry, Federal University of São Carlos, São Carlos, Brazil
| | - Daniel P Bezerra
- Gonçalo Moniz Institute, Oswaldo Cruz Foundation (IGM-FIOCRUZ/BA), Salvador, Brazil
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15
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Bomfim LM, Menezes LRA, Rodrigues ACBC, Dias RB, Rocha CAG, Soares MBP, Neto AFS, Nascimento MP, Campos AF, Silva LCRCE, Costa EV, Bezerra DP. Antitumour Activity of the Microencapsulation of Annona vepretorum Essential Oil. Basic Clin Pharmacol Toxicol 2015; 118:208-13. [PMID: 26348780 DOI: 10.1111/bcpt.12488] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 08/31/2015] [Indexed: 11/28/2022]
Abstract
Annona vepretorum Mart. (Annonaceae), popularly known as 'bruteira', has nutritional and medicinal uses. This study investigated the chemical composition and antitumour potential of the essential oil of A. vepretorum leaf alone and complexed with β-cyclodextrin in a microencapsulation. The essential oil was obtained by hydrodistillation using a Clevenger-type apparatus and analysed using GC-MS and GC-FID. In vitro cytotoxicity of the essential oil and some of its major constituents in tumour cell lines from different histotypes was evaluated using the alamar blue assay. Furthermore, the in vivo efficacy of essential oil was demonstrated in mice inoculated with B16-F10 mouse melanoma. The essential oil included bicyclogermacrene (35.71%), spathulenol (18.89%), (E)-β-ocimene (12.46%), α-phellandrene (8.08%), o-cymene (6.24%), germacrene D (3.27%) and α-pinene (2.18%) as major constituents. The essential oil and spathulenol exhibited promising cytotoxicity. In vivo tumour growth was inhibited by the treatment with the essential oil (inhibition of 34.46%). Importantly, microencapsulation of the essential oil increased in vivo tumour growth inhibition (inhibition of 62.66%).
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Affiliation(s)
- Larissa M Bomfim
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (CPqGM-FIOCRUZ/BA), Salvador, Brazil
| | | | | | - Rosane B Dias
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (CPqGM-FIOCRUZ/BA), Salvador, Brazil
| | - Clarissa A Gurgel Rocha
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (CPqGM-FIOCRUZ/BA), Salvador, Brazil.,Department of Propedeutics, Federal University of Bahia, Salvador, Brazil
| | - Milena B P Soares
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (CPqGM-FIOCRUZ/BA), Salvador, Brazil.,Center of Biotechnology and Cell Therapy, Hospital São Rafael, Salvador, Brazil
| | | | | | - Adriana F Campos
- Northeastern Center for Strategic Technologies (CETENE), Recife, Brazil
| | | | - Emmanoel V Costa
- Department of Chemistry, Federal University of Amazonas, Manaus, Brazil
| | - Daniel P Bezerra
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (CPqGM-FIOCRUZ/BA), Salvador, Brazil
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16
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Rodrigues ACBC, Bomfim LM, Neves SP, Menezes LRA, Dias RB, Soares MBP, Prata APN, Rocha CAG, Costa EV, Bezerra DP. Antitumor Properties of the Essential Oil From the Leaves of Duguetia gardneriana. Planta Med 2015; 81:798-803. [PMID: 26125546 DOI: 10.1055/s-0035-1546130] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Duguetia gardneriana, popularly known in the Brazilian northeast as "jaquinha", is a species belonging to the family Annonaceae. The aim of this work was to assess the chemical composition and antitumor properties of the essential oil from the leaves of D. gardneriana in experimental models. The chemical composition of the essential oil was analyzed via gas chromatography-flame ionization detector and gas chromatography-mass spectrometry. In vitro cytotoxic activity was determined in cultured tumor cells, and in vivo antitumor activity was assessed in B16-F10-bearing mice. The identified compounds were β-bisabolene (80.99%), elemicin (8.04%), germacrene D (4.15%), and cyperene (2.82%). The essential oil exhibited a cytotoxic effect, with IC50 values of 16.89, 19.16, 13.08, and 19.33 µg/mL being obtained for B16-F10, HepG2, HL-60, and K562 cell lines, respectively. On the other hand, β-bisabolene was inactive in all of the tested tumor cell lines (showing IC50 values greater than 25 µg/mL). The in vivo analysis revealed tumor growth inhibition rates of 5.37-37.52% at doses of 40 and 80 mg/kg/day, respectively. Herein, the essential oil from the leaves of D. gardneriana presented β-bisabolene as the major constituent and showed cytotoxic and antitumor potential.
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Affiliation(s)
| | - Larissa M Bomfim
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
| | - Sara P Neves
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
| | - Leociley R A Menezes
- Department of Chemistry, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Rosane B Dias
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
| | - Milena B P Soares
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
| | - Ana Paula N Prata
- Department of Biology, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | | | - Emmanoel V Costa
- Department of Chemistry, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Daniel P Bezerra
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
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17
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Costa EV, Menezes LRA, Rocha SLA, Baliza IRS, Dias RB, Rocha CAG, Soares MBP, Bezerra DP. Antitumor Properties of the leaf essential oil of Zornia brasiliensis. Planta Med 2015; 81:563-567. [PMID: 25856436 DOI: 10.1055/s-0035-1545842] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Zornia brasiliensis, popularly known as "urinária", "urinana", and "carrapicho", is a medicinal plant used in Brazilian northeast folk medicine as a diuretic and against venereal diseases. The aim of this study was to investigate the chemical composition and antitumor potential of the leaf essential oil of Z. brasiliensis. The essential oil was obtained by hydrodistillation using a Clevenger-type apparatus and analyzed by GC-MS and GC-FID. Its composition was characterized by the presence of trans-nerolidol, germacrene D, trans-caryophyllene, α-humulene, and farnesene as major constituents. In vitro cytotoxicity of the essential oil and some of its major constituents (trans-nerolidol, trans-caryophyllene, and α-humulene) was evaluated for tumor cell lines from different histotypes using the Alamar blue assay. The essential oil, but not the constituents tested, presented promising cytotoxicity. Furthermore, mice inoculated with B16-F10 mouse melanoma were used to confirm its in vivo effectiveness. An in vivo antitumor study showed tumor growth inhibition rates of 1.68-38.61 % (50 and 100 mg/kg, respectively). In conclusion, the leaf essential oil of Z. brasiliensis presents trans-nerolidol, germacrene D, trans-caryophyllene, α-humulene, and farnesene as major constituents and is able to inhibit cell proliferation in cultures as well as in tumor growth in mice.
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Affiliation(s)
- Emmanoel V Costa
- Department of Chemistry, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - Leociley R A Menezes
- Department of Chemistry, Federal University of Sergipe, São Cristóvão, Sergipe, Brazil
| | - Suellen L A Rocha
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
| | - Ingrid R S Baliza
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
| | - Rosane B Dias
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
| | | | - Milena B P Soares
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
| | - Daniel P Bezerra
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation (Fiocruz), Salvador, Bahia, Brazil
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