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Behbahani BA, Noshad M, Falah F. Study of chemical structure, antimicrobial, cytotoxic and mechanism of action of Syzygium aromaticum essential oil on foodborne pathogens. POTRAVINARSTVO 2019. [DOI: 10.5219/1226] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In this study, chemical composition (gas chromatography-mass spectroscopy), chemical structure (fourier transform infrared spectroscopy) and antioxidant potential (β-carotene bleaching assay and DPPH/ABTS-radical scavenging activity tests) of Syzygium aromaticum essential oil (SAEO) were evaluated. Eugenol (75.11%) was found to be the major compound of SAEO. Eugenol, as the main chemical constituent of SAEO, showed its signature peaks in the wavenumber range of 720 – 1250 cm-1, ascribing to the C=C region. The antimicrobial activity of SAEO on Escherichia coli, Staphylococcus aureus, Listeria innocua and Pseudomonas aeruginosa were evaluated. The scanning electron microscopy (SEM) was then applied to unravel the antibacterial mechanism of SAEO on E. coli as the most resistant strain and L. innocua as the most sensitive strain. The MTT assay was also used to investigate the cytotoxicity effect of SAEO on human colonic cancer cell lines (HT29 cell line) and the highest cytotoxic effect was observed at 200 mg.mL-1 concentration of SAEO. The SEM micrographs revealed that the SAEO treatment was able to manifestly increase the cell permeabilization and membrane integrity disruption. This means that the entirety of the cell membranes was remarkably affected by the essential oil, which could lead to cytoplasm secretion and subsequent cell death. The data strongly suggest that SAEO had a potential antioxidant, antimicrobial and cytotoxicity activity.
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Silva AG, Lopes CFB, Carvalho Júnior CG, Thomé RG, dos Santos HB, Reis R, Ribeiro RIMDA. WIN55,212-2 induces caspase-independent apoptosis on human glioblastoma cells by regulating HSP70, p53 and Cathepsin D. Toxicol In Vitro 2019; 57:233-243. [DOI: 10.1016/j.tiv.2019.02.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/02/2019] [Accepted: 02/08/2019] [Indexed: 11/28/2022]
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Mfengwana PH, Mashele SS, Manduna IT. Cytotoxicity and cell cycle analysis of Asparagus laricinus Burch. and Senecio asperulus DC. on breast and prostate cancer cell lines. Heliyon 2019; 5:e01666. [PMID: 31193085 PMCID: PMC6517332 DOI: 10.1016/j.heliyon.2019.e01666] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/12/2019] [Accepted: 05/02/2019] [Indexed: 01/22/2023] Open
Abstract
Aims Medicinal plants play an important role in our African communities for treatment and prevention of various diseases including cancer. This study was aimed on evaluating the cytotoxicity activities of Asparagus laricinus Burch. and Senecio asperulus DC. Main methods In vitro cytotoxicity screening was carried out using fluorescent cellular stains on human prostate cancer (PC3), human breast cancer (MCF-7) and the non-cancerous African green monkey kidney (Vero) cell lines. The cells were imaged with the ImageXpress Micro XLS Widefield fluorescent Microscope, and the acquired images were analysed using the MetaXpress software and the Multi-Wavelength cell scoring application module. Melphalan was used as a positive control in all experiments. Key findings Asparagus laricinus methanol and Senecio asperulus DC. dichloromethane extracts exhibited cytotoxicity activity against breast cancer cells with IC50 values of 97.6 μg/mL and 69.15 μg/mL, respectively. Cell cycle analysis suggested that Asparagus laricinus methanol extract induced cell death selectively through apoptosis observed from Annexin V-FITC and PI stain. Cell cycle analysis also showed that Senecio asperulus DC. dichloromethane extracts induced breast cancer cells death through cell arrest at the synthesis phase and G2 phase. Senecio asperulus DC. dichloromethane extracts further showed cytotoxicity activity against prostate cancer cells with IC50 values of 69.25 μg/mL due to cell arrest at the G2 and early mitotic (G2/M) phase. Significance We, therefore, propose that the methanol extract of Asparagus laricinus is a suitable aspirant for future breast cancer chemotherapeutic drug, due to its selective cytotoxicity on cancer cells and not on non-cancerous cells.
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Affiliation(s)
- P H Mfengwana
- Department of Health Sciences, Central University of Technology, Free State, Private Bag X20539, Bloemfontein, 9300 South Africa
| | - S S Mashele
- Unit for Drug Discovery Research, Central University of Technology, Free State, Private Bag X20539, Bloemfontein, 9300 South Africa
| | - I T Manduna
- Centre for Applied Food Security and Biotechnology, Central University of Technology, Free State, Private Bag X20539, Bloemfontein, 9300 South Africa
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Adefisan A, Owumi S, Adaramoye O. Root bark extract of Calliandra portoricensis (Jacq.) Benth. chemoprevents N-methyl-N-nitrosourea-induced mammary gland toxicity in rats. JOURNAL OF ETHNOPHARMACOLOGY 2019; 233:22-33. [PMID: 30599221 DOI: 10.1016/j.jep.2018.12.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 11/25/2018] [Accepted: 12/16/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Calliandra portoricensis (CP) is a herb widely used in Nigeria for the treatment of breast engorgement. However, the scientific evidence of this use and its mechanisms of action is not clearly understood. AIM OF THE STUDY We assessed the chemopreventive effects of methanol extract of CP on N-methyl-N-nitrosourea (NMU)-induced mammary gland toxicity in rats. MATERIALS AND METHODS Fingerprinting of methanol extract of CP by Gas Chromatography-Mass Spectrometry (GC-MS) was done. Female Wistar rats were assigned into eight groups: Group 1 (control), group 2 received NMU only, groups 3, 4 and 5 received NMU and treated with CP at doses of 100, 200 and 300 mg/kg, respectively. Group 6 received CP (300 mg/kg), group 7 received NMU and vincristine, while group 8 received vincristine. RESULTS The weight-gain by rats decreased in all groups that received NMU. Administration of NMU significantly increased organo-somatic weight of mammary gland by 52%. The NMU increased serum nitric oxide, total bilirubin, mammary myeloperoxidase and lipid peroxidation by 76%, 87%, 130% and 21%, respectively, as well as activities of serum aspartate aminotransferase and lactate dehydrogenase. Also, NMU-treated rats had decreased total sulphydryl, reduced glutathione and catalase. Immunohistochemistry revealed strong expression of estrogen, progesterone and EGFR-2 proteins in NMU-treated rats. Treatment with CP (200 and 300 mg/kg) attenuated NMU-induced inflammation and oxidative stress. CONCLUSION CP ameliorated NMU-induced toxicity by modulating different cellular targets.
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Affiliation(s)
- Adedoyin Adefisan
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Solomon Owumi
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Oluwatosin Adaramoye
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria.
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Bioassay-guided isolation and structure elucidation of cytotoxic stilbenes and flavonols from the leaves of Macaranga barteri. Fitoterapia 2019; 134:151-157. [DOI: 10.1016/j.fitote.2019.02.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 02/25/2019] [Accepted: 02/26/2019] [Indexed: 01/04/2023]
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Segun PA, Ogbole OO, Ismail FMD, Nahar L, Evans AR, Ajaiyeoba EO, Sarker SD. Resveratrol derivatives from Commiphora africana (A. Rich.) Endl. display cytotoxicity and selectivity against several human cancer cell lines. Phytother Res 2018; 33:159-166. [PMID: 30346066 DOI: 10.1002/ptr.6209] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/13/2018] [Accepted: 09/14/2018] [Indexed: 12/22/2022]
Abstract
Commiphora africana (A. Rich.) Endl. (Burseraceae) is a medicinal plant widely used in Nigerian ethnomedicine. The in vitro cytotoxicity of the stem bark extract of C. africana and isolated cytotoxic compounds was investigated. Three resveratrol derivatives: (E)-resveratrol 3-O-rutinoside (1), 5-methoxy-(E)-resveratrol 3-O-rutinoside (2), and pinostilbene (3), together with 3-hydroxy-5-methoxybenzoic acid (4) were isolated from the methanol fraction of C. africana. Their structures were determined by extensive analysis of their HREIMS and NMR spectra. The cytotoxicity of the isolated compounds against four human carcinoma cells was determined using the MTT assay. Compound 1 displayed the highest antiproliferative effect on the cell lines, with IC50 values of 16.80, 21.74, 17.89, and 17.44 μM, against MCF7, A549, PC3, and HepG2 human cancer cell lines, respectively. In addition, compounds 1-3 showed low toxicity against normal human prostate cell line, with selectivity indices greater than five across the carcinoma cells, indicating that the compounds possess potential in the development of low-toxicity chemotherapeutic agents. These results support the traditional use of this plant in the treatment of cancer.
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Affiliation(s)
- Peter A Segun
- Department of Pharmacognosy, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria.,Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK.,Department of Pharmacognosy, Faculty of Pharmacy, Olabisi Onabanjo University, Ago Iwoye, Nigeria
| | - Omonike O Ogbole
- Department of Pharmacognosy, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
| | - Fyaz M D Ismail
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Lutfun Nahar
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Andrew R Evans
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Edith O Ajaiyeoba
- Department of Pharmacognosy, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
| | - Satyajit D Sarker
- Medicinal Chemistry and Natural Products Research Group, School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
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Ramak P, Talei GR. Chemical composition, cytotoxic effect and antimicrobial activity of Stachys koelzii Rech.f. essential oil against periodontal pathogen Prevotella intermedia. Microb Pathog 2018; 124:272-278. [PMID: 30118806 DOI: 10.1016/j.micpath.2018.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/05/2018] [Accepted: 08/07/2018] [Indexed: 11/27/2022]
Abstract
Prevotella intermedia is associated with periodontal diseases and endodontic infections. Periodontitis can be suppressed by utilizing the antiseptics, which target the infectious bacteria. The member of Stachys sp. has been used traditionally in the form of decoction or infusion for management of infectious diseases. The subject of this article was to evaluate the chemical composition, antimicrobial and cytotoxic effect of Stachys koelzii essential oil and its main components against Prevotella intermedia. GC-FID and GC-MS analysis were used to determine the chemical composition. The antimicrobial effects of S. koelzii essential oil was evaluated by micro-broth dilution assay. Time kill curve assays, leakage of cytoplasmic materials and anti-biofilm effects were determined. Its cytotoxic effect was evaluated by MTT assay. Essential oil with main components of α-pinene, trans-caryophyllene and 1,8-cineole inhibited P. intermedia with MIC and MBC values of 0.1 and 0.2 mg/mL. Its biofilm formation was higher than α-pinene, followed by trans-caryophyllene and 1,8-cineole. Essential oil and its main components increased the leakage of cytoplasmic components. Essential oil showed cytotoxic effect on HeLa cell lines with IC50 0.06 mg/mL. The cytotoxic effect of α-pinene on healthy cell lines was higher than essential oil. S. koelzii essential oil can be used in mouthwash formulations and its efficacy should be evaluated in large clinical studies.
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Affiliation(s)
- Parvin Ramak
- Research Division of Natural Resources, Lorestan Agricultural and Natural Resources Research and Education Center, AREEO, Khorramabad, Iran
| | - Gholam Reza Talei
- Head of Virology Department, Razi Herbal Medicines Research Center, Medical School, Lorestan University of Medical Sciences Khorramabad, Iran.
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Ogbole OO, Akinleye TE, Segun PA, Faleye TC, Adeniji AJ. In vitro antiviral activity of twenty-seven medicinal plant extracts from Southwest Nigeria against three serotypes of echoviruses. Virol J 2018; 15:110. [PMID: 30021589 PMCID: PMC6052623 DOI: 10.1186/s12985-018-1022-7] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 07/11/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Echoviruses, a serotype of enteroviruses, infect millions of people globally and there is no specific drug treatment or vaccine available for its management. The screening of medicinal plants used locally for the treatment of infectious diseases, can provide a reliable option in the discovery of potent therapeutic compounds. This study was carried out to investigate the antiviral activities of 27 medicinal plant extracts, belonging to 26 different plant species, selected from Nigerian ethnobotany, against echovirus 7, 13 and 19 serotypes (E7, E13 and E19, respectively). METHODS The plants were macerated in methanol and the cytotoxicities of the crude extracts were evaluated on the rhabdomyosarcoma cell line using the MTT assay. The antiviral activity of the plant extracts and fractions against echoviruses (E7, E13, and E19) was determined using the neutralisation assay, an assay that measures the inhibition of cytopathic effect on cell culture. RESULTS The crude extract of Macaranga barteri leaves had the highest cytotoxicity with CC50 value of 0.27 μg/mL. This was followed by Crinum jagus (9.88 μg/mL) and Terminalia ivorensis (12.14 μg/mL). The antiviral screening showed that ten out of the 27 crude plant extracts tested were active on E7 and E19, inhibiting the cytopathic effect of the virus in tissue culture. None of the extracts inhibited the cytopathic effect caused by E13 serotype. Amongst the active plant extracts, the methanol extract of M. barteri leaves had the highest antiviral activity on both E7 and E9 with IC50 values of 0.028 and 0.0017 ng/mL, respectively, followed by the Ageratum conyzoides extract (0.208 μg/mL, E7; 0.006 μg/mL, E19) and Mondia whitei extract (0.038 μg/mL, E7; 0.005 μg/mL, E19). Amongst the fractions of M. barteri, the DCM fraction was most the active and selective on E7 (IC50 = 0.0075 ng/mL; SI = 19,896.54) and E19 (IC50 = 0.0175 ng/mL; SI = 8581.24). CONCLUSION Our research has demonstrated that Macaranga barteri extracts has potent antiviral activity against echoviruses E7 and E19, and our findings suggest that this extract may have potential as a therapeutic agent in the treatment of enteroviral infections.
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Affiliation(s)
- Omonike O. Ogbole
- Department of Pharmacognosy, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
| | | | - Peter A. Segun
- Department of Pharmacognosy, Faculty of Pharmacy, Olabisi Onabanjo University, Sagamu, Nigeria
| | | | - Adekunle J. Adeniji
- Department of Virology, College of Medicine, University of Ibadan, Ibadan, Nigeria
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