1
|
Mostafa E, Fayed MAA, Radwan RA, Bakr RO. Centaurea pumilio L. extract and nanoparticles: A candidate for healthy skin. Colloids Surf B Biointerfaces 2019; 182:110350. [PMID: 31326622 DOI: 10.1016/j.colsurfb.2019.110350] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/14/2019] [Accepted: 07/06/2019] [Indexed: 01/09/2023]
Abstract
Centaurea pumilio was the subject of phytochemical and biological studies, and its extract was used in the green synthesis of silver nanoparticles (AgNPs). Liquid chromatography/electrospray ionization mass spectrometry allowed the tentative identification of twenty-nine phytoconstituents of C. pumilio methanolic extract (CME), while column chromatography led to the identification of eight phenolic compounds. The neutral red uptake method showed the safety of CME and AgNPs on skin cells (HaCaT cell lines), while their high antioxidant potentials were demonstrated based on their oxygen radical absorbance capacity, and these results were confirmed in vivo. Additionally, CME and AgNPs had promising abilities to retard the ageing process and combat dark spots by potently inhibiting collagenase, elastase and tyrosinase, in addition to antimicrobial activity against skin infection-causing strains, especially Staphylococcus aureus, which was further confirmed by the significant phagocytic activity of neutrophils via engulfment. This study presents C. pumilio as a candidate for healthy skin.
Collapse
Affiliation(s)
- Eman Mostafa
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787, Giza, Egypt
| | - Marwa A A Fayed
- Department of Pharmacognosy, Faculty of Pharmacy, University of Sadat City, Egypt
| | - Rasha A Radwan
- Biochemistry and Biotechnology Department, Faculty of Pharmacy & Drug Technology, Heliopolis University, Cairo, Egypt
| | - Riham O Bakr
- Department of Pharmacognosy, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 11787, Giza, Egypt.
| |
Collapse
|
2
|
Anziliero D, Kreutz L, Flores E, Weiblen R. Effects of inactivated parapoxvirus ovis on cellular and humoral events of the innate immune response in mice. Cell Immunol 2014; 289:36-41. [DOI: 10.1016/j.cellimm.2014.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Revised: 03/06/2014] [Accepted: 03/14/2014] [Indexed: 12/17/2022]
|
3
|
Anziliero D, Weiblen R, Kreutz LC, Spilki F, Flores EF. Inactivated Parapoxvirus ovis induces a transient increase in the expression of proinflammatory, Th1-related, and autoregulatory cytokines in mice. Braz J Med Biol Res 2014; 47:110-8. [PMID: 24519126 PMCID: PMC4051177 DOI: 10.1590/1414-431x20133358] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 09/30/2013] [Indexed: 02/02/2023] Open
Abstract
The immunostimulatory properties of inactivated Parapoxvirus ovis (iPPVO) have long been investigated in different animal species and experimental settings. In this study, we investigated the effects of iPPVO on cytokine expression in mice after intraperitoneal inoculation. Spleen and sera collected from iPPVO-treated mice at intervals after inoculation were submitted to cytokine mRNA determination by real-time PCR (qPCR), serum protein concentration by ELISA, and interferon (IFN)-α/β activity by bioassay. The spleen of iPPVO-treated animals showed a significant increase in mRNA expression of all cytokines assayed, with different kinetics and magnitude. Proinflammatory cytokines interleukin (IL)-1β, tumor necrosis factor-alpha (TNF-α), and IL-8 mRNA peaked at 24 hours postinoculation (hpi; 5.4-fold increase) and 48 hpi (3- and 10-fold increases), respectively. A 15-fold increase in IFN-γ and 6-fold IL-12 mRNA increase were detected at 48 and 24 hpi, respectively. Increased expression of autoregulatory cytokines (Th2), mainly IL-10 and IL-4, could be detected at later times (72 and 96 hpi) with peaks of 4.7- and 4.9-fold increases, respectively. IFN-I antiviral activity against encephalomyocarditis virus was demonstrated in sera of treated animals between 6 and 12 hpi, with a >90% reduction in the number of plaques. Measurement of serum proteins by ELISA revealed increased levels of IL-1, TNF-α, IL-12, IFN-γ, and IL-10, with kinetics similar to those observed by qPCR, especially for IL-12 and IFN-γ. These data demonstrate that iPPVO induced a transient and complex cytokine response, initially represented by Th1-related cytokines followed by autoregulatory and Th2 cytokines.
Collapse
Affiliation(s)
- D Anziliero
- Setor de Virologia, Departamento de Medicina Veterinária Preventiva, Universidade Federal de Santa Maria, Santa MariaRS, Brasil, Setor de Virologia, Departamento de Medicina Veterinária Preventiva, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - R Weiblen
- Setor de Virologia, Departamento de Medicina Veterinária Preventiva, Universidade Federal de Santa Maria, Santa MariaRS, Brasil, Setor de Virologia, Departamento de Medicina Veterinária Preventiva, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| | - L C Kreutz
- Programa de Pós-Graduação em Bioexperimentação, Faculdade de Agronomia e Medicina Veterinária, Universidade de Passo Fundo, Passo FundoRS, Brasil, Programa de Pós-Graduação em Bioexperimentação, Faculdade de Agronomia e Medicina Veterinária, Universidade de Passo Fundo, Passo Fundo, RS, Brasil
| | - F Spilki
- Laboratório de Microbiologia Molecular, Instituto de Ciências da Saúde, Universidade Feevale, Novo HamburgoRS, Brasil, Laboratório de Microbiologia Molecular, Instituto de Ciências da Saúde, Universidade Feevale, Novo Hamburgo, RS, Brasil
| | - E F Flores
- Setor de Virologia, Departamento de Medicina Veterinária Preventiva, Universidade Federal de Santa Maria, Santa MariaRS, Brasil, Setor de Virologia, Departamento de Medicina Veterinária Preventiva, Universidade Federal de Santa Maria, Santa Maria, RS, Brasil
| |
Collapse
|
4
|
Hoffmann-Jagielska M, Winnicka A, Jagielski D, Lechowski R. Influence of dexamethasone on some cellular aspects of the immune system in cats. Vet Res Commun 2004; 27:643-52. [PMID: 14672453 DOI: 10.1023/a:1027376530463] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In view of the frequent use of glucocorticoids in the treatment of cats, we studied the effect of dexamethasone on their immunological system. The phagocytic activity and oxidative burst of neutrophils and monocytes were evaluated by cytometric analysis using commercial kits and the subpopulations of lymphocytes were assessed. Neutrophilia and monocytosis reduced phagocytic activity, as shown from the number of phagocytized bacteria, and variations in the intensity of the oxidative burst in activated neutrophils and monocytes were observed. Dexamethasone also caused an increase in the number of B lymphocytes.
Collapse
Affiliation(s)
- M Hoffmann-Jagielska
- Department of Clinical Science, Faculty of Veterinary Medicine, Agricultural University of Warsaw, Nowoursynowska 159C, 02-786 Warsaw, Poland
| | | | | | | |
Collapse
|