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Rodrigues Albuquerque E, Ratti da Silva G, de Abreu Braga F, Pelegrini Silva E, Sposito Negrini K, Rodrigues Fracasso JA, Pires Guarnier L, Jacomassi E, Ribeiro-Paes JT, da Silva Gomes R, Gasparotto Junior A, Lívero FADR. Bridging the Gap: Exploring the Preclinical Potential of Pereskia grandifolia in Metabolic-Associated Fatty Liver Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:8840427. [PMID: 38026733 PMCID: PMC10653969 DOI: 10.1155/2023/8840427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/02/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023]
Abstract
Metabolic-associated fatty liver disease (MAFLD) is a complex condition characterized by steatosis and metabolic disturbances. Risk factors such as diabetes, cigarette smoking, and dyslipidaemia contribute to its development and progression. Effective and safe therapies for MAFLD are urgently needed. Pereskia grandifolia has shown potential as an alternative treatment, but its effectiveness against liver disease remains unexplored. This research aims to determine the hepatoprotective properties of P. grandifolia using a model of MAFLD. The study was carried out through various phases to assess the safety and efficacy of the ethanol-soluble fraction of P. grandifolia. Initially, an in vitro assay was performed to assess cell viability. This was followed by an acute toxicity test conducted in rats to determine the safety profile of the extract. Subsequently, the anti-inflammatory properties of P. grandifolia were examined in macrophages. For the MAFLD study, diabetic Wistar rats were made diabetic and exposed to a high fat diet and cigarette smoke, for 4 weeks. During the last 2 weeks, the rats were orally given either the vehicle (negative control group; C-), P. grandifolia (30, 100, and 300 mg/kg), or insulin in addition to simvastatin. A basal group of rats not exposed to these risk factors was also assessed. Blood samples were collected to measure cholesterol, triglycerides, glucose, ALT, and AST levels. Liver was assessed for lipid and oxidative markers, and liver histopathology was examined. P. grandifolia showed no signs of toxicity. It demonstrated anti-inflammatory effects by inhibiting phagocytosis and macrophage spreading. The MAFLD model induced liver abnormalities, including increased AST, ALT, disrupted lipid profile, oxidative stress, and significant hepatic damage. However, P. grandifolia effectively reversed these changes, highlighting its potential as a therapeutic agent. These findings emphasize the significance of P. grandifolia in mitigating hepatic consequences associated with various risk factors.
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Affiliation(s)
- Edilson Rodrigues Albuquerque
- Laboratory of Preclinical Research of Natural Products, Post Graduate Program in Animal Science with Emphasis on Bioactive Products, Universidade Paranaense, Umuarama, Brazil
| | - Gustavo Ratti da Silva
- Laboratory of Preclinical Research of Natural Products, Post Graduate Program in Animal Science with Emphasis on Bioactive Products, Universidade Paranaense, Umuarama, Brazil
| | - Fernanda de Abreu Braga
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama, Brazil
| | - Ester Pelegrini Silva
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama, Brazil
| | - Karina Sposito Negrini
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama, Brazil
| | | | - Lucas Pires Guarnier
- Department of Genetic, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Ezilda Jacomassi
- Laboratory of Preclinical Research of Natural Products, Post Graduate Program in Medicinal Plants and Phytotherapeutics in Basic Attention, Paranaense University, Umuarama, Brazil
| | | | - Roberto da Silva Gomes
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota 58102, USA
| | - Arquimedes Gasparotto Junior
- Laboratory of Cardiovascular Pharmacology, Faculty of Health Sciences, Federal University of Grande Dourados, Dourados, Brazil
| | - Francislaine Aparecida dos Reis Lívero
- Laboratory of Preclinical Research of Natural Products, Paranaense University, Umuarama, Brazil
- Laboratory of Cardiometabolic Pharmacology, Federal University of Paraná, Curitiba, Brazil
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de Melo LFM, Barbosa JDS, Cordeiro MLDS, Aquino-Martins VGDQ, da Silva AP, Paiva WDS, Silveira ER, dos Santos DYAC, Rocha HAO, Scortecci KC. The Antioxidant and Immunomodulatory Potential of Coccoloba alnifolia Leaf Extracts. Int J Mol Sci 2023; 24:15885. [PMID: 37958868 PMCID: PMC10650087 DOI: 10.3390/ijms242115885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/23/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
Oxidative stress has been associated with different diseases, and different medicinal plants have been used to treat or prevent this condition. The leaf ethanolic extract (EE) and aqueous extract (AE) from Coccoloba alnifolia have previously been characterized to have antioxidant potential in vitro and in vivo. In this study, we worked with EE and AE and two partition phases, AF (ethyl acetate) and BF (butanol), from AE extract. These extracts and partition phases did not display cytotoxicity. The EE and AE reduced NO production and ROS in all three concentrations tested. Furthermore, it was observed that EE and AE at 500 μg/mL concentration were able to reduce phagocytic activity by 30 and 50%, respectively. A scratch assay using a fibroblast cell line (NHI/3T3) showed that extracts and fractions induced cell migration with 60% wound recovery within 24 h, especially for BF. It was also observed that AF and BF had antioxidant potential in all the assays evaluated. In addition, copper chelation was observed. This activity was previously not detected in AE. The HPLC-DAD analysis showed the presence of phenolic compounds such as p-cumaric acid and vitexin for extracts, while the GNPS annotated the presence of isoorientin, vitexin, kanakugiol, and tryptamine in the BF partition phase. The data presented here demonstrated that the EE, AE, AF, and BF of C. alnifolia have potential immunomodulatory effects, antioxidant effects, as well as in vitro wound healing characteristics, which are important for dynamic inflammation process control.
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Affiliation(s)
- Luciana Fentanes Moura de Melo
- Laboratory of Plant Transformation and Microscopy Analysis (LPTAM), Cell Biology and Genetics Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (L.F.M.d.M.); (V.G.d.Q.A.-M.); (A.P.d.S.)
- Laboratory of Biotechnology of Natural Polymers (BIOPOL), Biochemistry Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (J.d.S.B.); (W.d.S.P.); (H.A.O.R.)
- Biochemistry and Molecular Biology Graduation School Programa de Pós-Graduação em Bioquímica, Federal University of Rio Grande do Norte (UFRN), Natal 59012-570, RN, Brazil
| | - Jefferson da Silva Barbosa
- Laboratory of Biotechnology of Natural Polymers (BIOPOL), Biochemistry Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (J.d.S.B.); (W.d.S.P.); (H.A.O.R.)
- Federal Institut of Education, Science and Technology of Rio Grande do Norte (IFRN), São Gonçalo do Amarante 59291-727, RN, Brazil
| | - Maria Lúcia da Silva Cordeiro
- Laboratory of Plant Transformation and Microscopy Analysis (LPTAM), Cell Biology and Genetics Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (L.F.M.d.M.); (V.G.d.Q.A.-M.); (A.P.d.S.)
- Laboratory of Biotechnology of Natural Polymers (BIOPOL), Biochemistry Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (J.d.S.B.); (W.d.S.P.); (H.A.O.R.)
- Biochemistry and Molecular Biology Graduation School Programa de Pós-Graduação em Bioquímica, Federal University of Rio Grande do Norte (UFRN), Natal 59012-570, RN, Brazil
| | - Verônica Giuliani de Queiroz Aquino-Martins
- Laboratory of Plant Transformation and Microscopy Analysis (LPTAM), Cell Biology and Genetics Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (L.F.M.d.M.); (V.G.d.Q.A.-M.); (A.P.d.S.)
- Laboratory of Biotechnology of Natural Polymers (BIOPOL), Biochemistry Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (J.d.S.B.); (W.d.S.P.); (H.A.O.R.)
- Biochemistry and Molecular Biology Graduation School Programa de Pós-Graduação em Bioquímica, Federal University of Rio Grande do Norte (UFRN), Natal 59012-570, RN, Brazil
| | - Ariana Pereira da Silva
- Laboratory of Plant Transformation and Microscopy Analysis (LPTAM), Cell Biology and Genetics Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (L.F.M.d.M.); (V.G.d.Q.A.-M.); (A.P.d.S.)
- Laboratory of Biotechnology of Natural Polymers (BIOPOL), Biochemistry Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (J.d.S.B.); (W.d.S.P.); (H.A.O.R.)
| | - Weslley de Souza Paiva
- Laboratory of Biotechnology of Natural Polymers (BIOPOL), Biochemistry Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (J.d.S.B.); (W.d.S.P.); (H.A.O.R.)
- Northeast Biotecnology Network (RENORBIO), Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil
| | - Elielson Rodrigo Silveira
- Phytochemistry Laboratory, Botany Departament, Bioscience Institut, São Paulo University, São Paulo 05508-070, SP, Brazil; (E.R.S.); (D.Y.A.C.d.S.)
| | - Déborah Yara A. Cursino dos Santos
- Phytochemistry Laboratory, Botany Departament, Bioscience Institut, São Paulo University, São Paulo 05508-070, SP, Brazil; (E.R.S.); (D.Y.A.C.d.S.)
| | - Hugo Alexandre Oliveira Rocha
- Laboratory of Biotechnology of Natural Polymers (BIOPOL), Biochemistry Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (J.d.S.B.); (W.d.S.P.); (H.A.O.R.)
- Biochemistry and Molecular Biology Graduation School Programa de Pós-Graduação em Bioquímica, Federal University of Rio Grande do Norte (UFRN), Natal 59012-570, RN, Brazil
| | - Kátia Castanho Scortecci
- Laboratory of Plant Transformation and Microscopy Analysis (LPTAM), Cell Biology and Genetics Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (L.F.M.d.M.); (V.G.d.Q.A.-M.); (A.P.d.S.)
- Biochemistry and Molecular Biology Graduation School Programa de Pós-Graduação em Bioquímica, Federal University of Rio Grande do Norte (UFRN), Natal 59012-570, RN, Brazil
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Anti-Inflammatory Effect and Toxicological Profile of Pulp Residue from the Caryocar Brasiliense, a Sustainable Raw Material. Gels 2023; 9:gels9030234. [PMID: 36975683 PMCID: PMC10048353 DOI: 10.3390/gels9030234] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/28/2022] [Accepted: 02/02/2023] [Indexed: 03/19/2023] Open
Abstract
Caryocar brasiliense Cambess is a plant species typical of the Cerrado, a Brazilian biome. The fruit of this species is popularly known as pequi, and its oil is used in traditional medicine. However, an important factor hindering the use of pequi oil is its low yield when extracted from the pulp of this fruit. Therefore, in this study, with aim of developing a new herbal medicine, we an-alyzed the toxicity and anti-inflammatory activity of an extract of pequi pulp residue (EPPR), fol-lowing the mechanical extraction of the oil from its pulp. For this purpose, EPPR was prepared and encapsulated in chitosan. The nanoparticles were analyzed, and the cytotoxicity of the encapsu-lated EPPR was evaluated in vitro. After confirming the cytotoxicity of the encapsulated EPPR, the following evaluations were performed with non-encapsulated EPPR: in vitro anti-inflammatory activity, quantification of cytokines, and acute toxicity in vivo. Once the anti-inflammatory activity and absence of toxicity of EPPR were verified, a gel formulation of EPPR was developed for topical use and analyzed for its in vivo anti-inflammatory potential, ocular toxicity, and previous stability assessment. EPPR and the gel containing EPPR showed effective anti-inflammatory activity and lack of toxicity. The formulation was stable. Thus, a new herbal medicine with anti-inflammatory activity can be developed from discarded pequi residue.
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Baihui (DU20), Shenmen (HT7) and Sanyinjiao (SP6) target the cAMP/CREB/BDNF and PI3K/Akt pathways to reduce central nervous system apoptosis in rats with insomnia. Heliyon 2022; 8:e12574. [PMID: 36636219 PMCID: PMC9830165 DOI: 10.1016/j.heliyon.2022.e12574] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/06/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Insomnia can cause damage to function and other medical and mental illnesses, and it is also a risk factor for increasing medical care costs. Although simple behavior intervention is feasible in primary medical institutions, the lack of corresponding technical training has obviously restricted its use, patients' autonomy dependence is generally poor, and early missions have some difficulties. Relatively speaking, acupuncture in traditional therapy is more likely to be accepted, but the mechanism is still unclear. In this study, a model of insomnia was constructed using chlorophenylalanine (PCPA) in 6-week-old male SD rats. Electroacupuncture was used to stimulate Baihui (DU20), Shenmen (HT7), and Sanyinjiao (SP6), and the behavior, histopathology, cAMP/CREB/BDNF, PI3K/Akt pathways and the expression of sleep-related factors were observed. Our study showed that IL-1β, PGD2, MT, IL-10, IL-6, TNF-α, IFN-γ and CORT in rats could be regulated after electroacupuncture stimulation. The expression of TrkB, PI3K, Akt, P-TrkB, p-Akt, cAMP, CREB, and BDNF can also be up- or downregulated. Apoptosis-related Bax, Bad and Caspase-3, as well as the monoamine neurotransmitters 5-HT, DA, NE and EPI, were also modulated by electroacupuncture. Taken together, these data illustrate the potential of DU20, HT7 and SP6 as a multitargeted therapy for insomnia in rats. The novelty of the study lies in the description of the Traditional Chinese Medicine stimulation methods different from Chinese Herbs: electroacupuncture stimulates acupoints of sleep factors, cAMP/CREB/BDNF, PI3K/Akt pathways and the multipath and multitarget body response regulation mechanism of apoptosis.
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A comprehensive review on the botany, traditional uses, phytochemistry, pharmacology and toxicity of Anagallis arvensis (L).: A wild edible medicinal food plant. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Coccoloba alnifolia Leaf Extract as a Potential Antioxidant Molecule Using In Vitro and In Vivo Assays. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:3928706. [PMID: 33101587 PMCID: PMC7569468 DOI: 10.1155/2020/3928706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/09/2020] [Accepted: 09/02/2020] [Indexed: 02/07/2023]
Abstract
The genus Coccoloba is widely used in traditional folk medicine, but few scientific data exist for this genus. The goal of this study was to characterise the chemical composition and antioxidant activities of C. alnifolia leaf extracts using in vitro and in vivo assays. Six extracts were obtained: hexane (HE), chloroform (CE), ethanol (EE), methanol (ME), water end extract (WEE), and water extract (WE). Thin-layer chromatography (TLC) analysis showed the presence of phenols, saponins, terpenes, and flavonoids. In vitro assays demonstrated substantial antioxidant potential, especially for polar extracts (EE, ME, WEE, and WE). Moreover, no toxic effects were observed on mammalian cell lines for most of the extracts at the concentrations evaluated. The nematode Caenorhabditis elegans was also used as an in vivo model for testing antioxidant potential. The EE and WE were chosen, based on previously obtained results. It was observed that neither the EE nor the WE had any toxic effect on C. elegans development. Additionally, the antioxidant potential was evaluated using tert-butyl hydroperoxide as a stressor agent. The EE increased the life span of C. elegans by 28% compared to that of the control, and the WE increased the range to 39.2-41.3%. High-performance liquid chromatography (HPLC-DAD) showed the presence of gallic acid, p-coumaric acid, and vitexin in the WE. Therefore, in vitro and in vivo data demonstrated the antioxidant potential of C. alnifolia extracts and their possible biotechnological applications.
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Khan RA. Natural products chemistry: The emerging trends and prospective goals. Saudi Pharm J 2018; 26:739-753. [PMID: 29991919 PMCID: PMC6036106 DOI: 10.1016/j.jsps.2018.02.015] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 02/05/2018] [Indexed: 01/01/2023] Open
Abstract
The role and contributions of natural products chemistry in advancements of the physical and biological sciences, its interdisciplinary domains, and emerging of new avenues by providing novel applications, constructive inputs, thrust, comprehensive understanding, broad perspective, and a new vision for future is outlined. The developmental prospects in bio-medical, health, nutrition, and other interrelated sciences along with some of the emerging trends in the subject area are also discussed as part of the current review of the basic and core developments, innovation in techniques, advances in methodology, and possible applications with their effects on the sciences in general and natural products chemistry in particular. The overview of the progress and ongoing developments in broader areas of the natural products chemistry discipline, its role and concurrent economic and scientific implications, contemporary objectives, future prospects as well as impending goals are also outlined. A look at the natural products chemistry in providing scientific progress in various disciplines is deliberated upon.
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Affiliation(s)
- Riaz A. Khan
- Department of Medicinal Chemistry, Qassim University, Qassim 51452, Saudi Arabia
- Manav Rachna International University, National Capital Region, Faridabad, HR 121 004, India
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Venkateshbabu N, Anand S, Abarajithan M, Sheriff SO, Jacob PS, Sonia N. Natural Therapeutic Options in Endodontics - A Review. Open Dent J 2016; 10:214-26. [PMID: 27386007 PMCID: PMC4911752 DOI: 10.2174/1874210601610010214] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 01/10/2016] [Accepted: 01/28/2016] [Indexed: 11/22/2022] Open
Abstract
Complete eradication of microbial biofilms and elimination of the smear layer are the key factors during endodontic treatment. Various chemical irrigants have been proposed in the literature for the same. The major setback with these chemical irrigants is that they are not bio-friendly to the dental and peri-radicular tissues. In the recent years, research to use natural products for root canal disinfection has gained importance. The aim of this article is to compile various herbal products that have been used as an irrigants and intracanal medicaments in the field of Endodontics to eradicate the biofilm and remove smear layer.
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Affiliation(s)
| | - Suresh Anand
- Department of Conservative Dentistry and Endodontics, Penang International Dental College, Penang, Malaysia
| | | | - Sultan O Sheriff
- Department of Restorative Dentistry, International Medical University, Kuala lumpur, Malaysia
| | - Pulikkotil S Jacob
- Department of Restorative Dentistry, International Medical University, Kuala lumpur, Malaysia
| | - Nath Sonia
- Department of Periodontology, Vananchal Dental College, Garhwa, India
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Zanelatto LC, Silva PBGD, Sartori D, Panis C, Lepri S, Fátima ÂD, Mantovani MS. LNO3 AND L3 Are Associated With Antiproliferative And Pro-Apoptotic Action In Hepatoma Cells. Genet Mol Biol 2016; 39:270-8. [PMID: 27303908 PMCID: PMC4910562 DOI: 10.1590/1678-4685-gmb-2015-0184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 12/11/2015] [Indexed: 11/30/2022] Open
Abstract
The identification of antitumoral substances is the focus of intense biomedical
research. Two structural analogues of thalidomide, LNO3 and L3, are two synthetic
compounds that might possess such antitumor properties. We evaluated the
toxicological effects of these substances, including cytotoxicity, genotoxicity and
induction of apoptosis in HTC cells. Additionally, the production of free radicals
(nitric oxide and superoxide) was investigated, and the expression of caspases genes
3, 8, and 9 were determined by RT-qPCR. The compounds exhibited cytotoxic effects
that resulted in inhibited cell proliferation. LNO3 showed to be more effective and
toxic than L3 in all assays. LNO3 stimulated the release of NO and superoxide, which
was accompanied by the formation of peroxynitrite. Apoptosis was induced in a
dose-dependent manner by both compounds; however, the expression of caspases 3, 8 and
9 was unchanged. These results suggested that L3 and LNO3 possess antiproliferative
and pro-apoptotic effects in HTC cells. Additionally, although they exhibited
cytotoxicity, L3 and LNO3 might be useful coadjuvants in tumor treatment studies.
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Affiliation(s)
- Leonardo Campos Zanelatto
- Laboratório de Genética Toxicológica, Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | | | - Daniele Sartori
- Laboratório de Genética Toxicológica, Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Carolina Panis
- Laboratório de Fisiologia de Radicais Livres, Departamento de Patologia, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Sandra Lepri
- Laboratório de Genética Toxicológica, Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Ângelo de Fátima
- Grupo de Estudos em Química Orgânica e Biológica, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Mário Sérgio Mantovani
- Laboratório de Genética Toxicológica, Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, PR, Brazil
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Bianchi J, Mantovani MS, Marin-Morales MA. Analysis of the genotoxic potential of low concentrations of Malathion on the Allium cepa cells and rat hepatoma tissue culture. J Environ Sci (China) 2015; 36:102-111. [PMID: 26456612 DOI: 10.1016/j.jes.2015.03.034] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 03/09/2015] [Accepted: 03/16/2015] [Indexed: 06/05/2023]
Abstract
Based on the concentration of Malathion used in the field, we evaluated the genotoxic potential of low concentrations of this insecticide on meristematic and F1 cells of Allium cepa and on rat hepatoma tissue culture (HTC cells). In the A. cepa, chromosomal aberrations (CAs), micronuclei (MN), and mitotic index (MI) were evaluated by exposing the cells at 1.5, 0.75, 0.37, and 0.18mg/mL of Malathion for 24 and 48hr of exposure and 48hr of recovery time. The results showed that all concentrations were genotoxic to A. cepa cells. However, the analysis of the MI has showed non-relevant effects. Chromosomal bridges were the CA more frequently induced, indicating the clastogenic action of Malathion. After the recovery period, the higher concentrations continued to induce genotoxic effects, unlike the observed for the lowest concentrations tested. In HTC cells, the genotoxicity of Malathion was evaluated by the MN test and the comet assay by exposing the cells at 0.09, 0.009, and 0.0009mg/5mL culture medium, for 24hr of exposure. In the comet assay, all the concentrations induced genotoxicity in the HTC cells. In the MN test, no significant induction of MN was observed. The genotoxicity induced by the low concentrations of Malathion presented in this work highlights the importance of studying the effects of low concentrations of this pesticide and demonstrates the efficiency of these two test systems for the detection of genetic damage promoted by Malathion.
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Affiliation(s)
- Jaqueline Bianchi
- Department of Biology, Institute of Biosciences, São Paulo State University (UNESP), Av. 24A, 1515, Bela Vista, Rio Claro, Brazil.
| | - Mario Sérgio Mantovani
- Department of General Biology, Biological Science Centre, Univ Estadual de Londrina, 86061990, Londrina, PR, 6001, Brazil
| | - Maria Aparecida Marin-Morales
- Department of Biology, Institute of Biosciences, São Paulo State University (UNESP), Av. 24A, 1515, Bela Vista, Rio Claro, Brazil.
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Semprebon SC, de Fátima Â, Lepri SR, Sartori D, Ribeiro LR, Mantovani MS. (S)-Goniothalamin induces DNA damage, apoptosis, and decrease in BIRC5 messenger RNA levels in NCI-H460 cells. Hum Exp Toxicol 2013; 33:3-13. [PMID: 23749456 DOI: 10.1177/0960327113491506] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
(R)-Goniothalamin (R-GNT) is a secondary metabolite isolated from the plants of the genus Goniothalamus. This molecule has attracted the attention of researchers because of its selective cytotoxicity against tumor cells and its ability to induce apoptosis. (S)-Goniothalamin (S-GNT) is a synthetic enantiomer of R-GNT, and its mechanism of action is largely unknown. In this study, we investigated the activity of S-GNT in a human non-small cell lung cancer NCI-H460 cells. We observed that the cells exposed to this compound exhibited cytotoxicity in a concentration-dependent manner. Based on the data obtained through the assessment of apoptosis induction in situ and the comet assay, we suggest that this cytotoxicity occurs due to the potential ability of this molecule to induce DNA damage with the consequent induction of cell death via apoptosis. A significant reduction in the messenger RNA levels of baculoviral inhibitor of apoptosis repeat-containing 5 (BIRC5) gene that encodes the survivin protein was found. This novel finding may explain the inhibition of cell proliferation and induction of apoptosis in tumor cells caused by this compound.
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Affiliation(s)
- S C Semprebon
- 1Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
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de Paula NA, Niwa AM, Vesenick DC, Panis C, Cecchini R, de Fátima A, Ribeiro LR, Mantovani MS. Evaluation of the effects of nicorandil and its molecular precursor (without radical NO) on proliferation and apoptosis of 786-cell. Cytotechnology 2013; 65:839-50. [PMID: 23325113 DOI: 10.1007/s10616-012-9524-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Accepted: 11/26/2012] [Indexed: 12/22/2022] Open
Abstract
Nicorandil is a nitric oxide (NO) donor used in the treatment of angina symptoms. It has also been reported to protect cells and affect the proliferation and death of cells in some tissues. The molecules that interfere with these processes can cause dysfunction in healthy tissues but can also assist in the therapy of some disorders. In this study we examined the effect of nicorandil and of the molecular precursor that does not have the NO radical (N-(beta-hydroxyethyl) nicotinamide) on the cell proliferation and death of human renal carcinoma cells (786-O) under normal oxygenation conditions. The molecular precursor was used in order to analyze the effects independents of NO. In the cytotoxicity test, nicorandil was shown to be cytotoxic at very high concentrations and it was more cytotoxic than its precursor (cytotoxic at concentrations of 2,000 and 3,000 μg/mL, respectively). We propose that the lower cytotoxicity of the precursor is due to the absence of the NO radical. In this study, the cells exposed to nicorandil showed neither statistically significant changes in cell proliferation nor increases in apoptosis or genotoxicity. The precursor generated similar results to those of nicorandil. We conclude that nicorandil causes no changes in the proliferation or apoptosis of the cell 786-O in normal oxygenation conditions. Moreover, the lack of NO radical in the precursor molecule did not show a different result, except in the cell cytotoxicity.
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Affiliation(s)
- Natália Aparecida de Paula
- Laboratório de Genética Toxicológica, Departamento de Biologia Geral, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid, Pr 445 Km 380, CEP 86055-990, Londrina, Paraná, Brazil,
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Almeida MR, Darin JDC, Hernandes LC, de Souza Ramos MF, Antunes LMG, de Freitas O. Genotoxicity assessment of Copaiba oil and its fractions in Swiss mice. Genet Mol Biol 2012; 35:664-72. [PMID: 23055807 PMCID: PMC3459418 DOI: 10.1590/s1415-47572012005000052] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 05/21/2012] [Indexed: 11/22/2022] Open
Abstract
Copaiba oil-resin, extracted from the trunk of Copaifera, and traditionally used in folk medicine in the treatment of various disorders, has been shown to be an effective antiinflamatory, antitumor, antitetanus, antiseptic and anti-blenorrhagea agent. As, there are few studies evaluating its genotoxicity, this aspect of the commercial oil-resin, and its volatile and resinous fractions, were evaluated in mice by comet assay and micronucleus (MN) test. A single dose of oil resin, volatile or resin fractions (500; 1,000 or 2,000 mg/kg b.w.) was administered by gavage. The chemical compositions of Copaiba oil resin and its fractions was analyzed by gas chromatography. According to comet assaying, treatment with either one did not increase DNA damage, and as to MN testing, there was no alteration in the incidence of micronucleated polychromatic erythrocytes. Chromatographic analysis of the oil-resin itself revealed sesquiterpenes, diterpenic carboxylic acid methyl esters and high levels of β-caryophyllene. Thus, it can be assumed that the oil resin and volatile and resinous fractions from the commercial product are not genotoxic or mutagenic.
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Affiliation(s)
- Mara Ribeiro Almeida
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Ribeirão Preto, SP, Brazil
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Cristina Marcarini J, Ferreira Tsuboy MS, Cabral Luiz R, Regina Ribeiro L, Beatriz Hoffmann-Campo C, Ségio Mantovani M. Investigation of cytotoxic, apoptosis-inducing, genotoxic and protective effects of the flavonoid rutin in HTC hepatic cells. ACTA ACUST UNITED AC 2010; 63:459-65. [PMID: 20399630 DOI: 10.1016/j.etp.2010.03.005] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2009] [Revised: 03/09/2010] [Accepted: 03/12/2010] [Indexed: 11/19/2022]
Abstract
Rutin is a flavonoid with antioxidant, vasodilatory, anti-inflammatory and immune-stimulating activities. To study the toxicity of rutin and its protective effect, this work investigated the cytotoxic, apoptosis-inducing, genotoxic and protective effects of rutin in HTC cells. In the MTT assay, the highest concentration tested (810 μM) showed cytotoxicity after 72 h of treatment, where cell viability and cell proliferation was diminished. None of the concentrations of rutin tested induced apoptosis after 24h treatment. The highest concentration of rutin after 24h treatment induced DNA damage, shown in the comet assay, but did have a genotoxic effect in the micronucleus test. Rutin was tested against the pro-carcinogenic agent benzo(a)pyrene, at concentrations of 90, 270 and 810 μM, and was found to reduce induced DNA damage significantly. This protective effect of rutin against a pro-carcinogen, suggests an important biological activity for this compound, which can contribute to human health through the diet.
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