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Suh J, Kim DH, Surh YJ. Resveratrol suppresses migration, invasion and stemness of human breast cancer cells by interfering with tumor-stromal cross-talk. Arch Biochem Biophys 2018; 643:62-71. [DOI: 10.1016/j.abb.2018.02.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 01/30/2018] [Accepted: 02/17/2018] [Indexed: 01/04/2023]
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Vittorio O, Le Grand M, Makharza SA, Curcio M, Tucci P, Iemma F, Nicoletta FP, Hampel S, Cirillo G. Doxorubicin synergism and resistance reversal in human neuroblastoma BE(2)C cell lines: An in vitro study with dextran-catechin nanohybrids. Eur J Pharm Biopharm 2017; 122:176-185. [PMID: 29129733 DOI: 10.1016/j.ejpb.2017.11.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 11/07/2017] [Accepted: 11/08/2017] [Indexed: 11/28/2022]
Abstract
Hybrid nanocarrier consisting in nanographene oxide coated by a dextran-catechin conjugate was proposed in the efforts to find more efficient Neuroblastoma treatment with Doxorubicin chemotherapy. The dextran-catechin conjugate was prepared by immobilized laccase catalysis and its peculiar reducing ability exploited for the synthesis of the hybrid carrier. Raman spectra and DSC thermograms were recorded to check the physicochemical properties of the nanohybrid, while DLS measurements, SEM, TEM, and AFM microscopy allowed the determination of its morphological and dimensional features. A pH dependent Doxorubicin release was observed, with 30 and 75% doxorubicin released at pH 7.4 and 5.0, respectively. Viability assays on parental BE(2)C and resistant BE(2)C/ADR cell lines proved that the high anticancer activity of dextran-catechin conjugate (IC50 19.9 ± 0.6 and 18.4 ± 0.7 µg mL-1) was retained upon formation of the nanohybrids (IC50 24.8 ± 0.7 and 22.9 ± 1 µg mL-1). Combination therapy showed a synergistic activity between doxorubicin and either bioconjugate or nanocarrier on BE(2)C. More interestingly, on BE(2)C/ADR we recorded both the reversion of doxorubicin resistance mechanism as a consequence of decreased P-gp expression (Western Blot analysis) and a synergistic effect on cell viability, confirming the proposed nanohybrid as a very promising starting point for further research in neuroblastoma treatment.
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Affiliation(s)
- Orazio Vittorio
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, Australia; Australian Centre for NanoMedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of New South Wales, NSW, Sydney, Australia
| | - Marion Le Grand
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, Australia; Australian Centre for NanoMedicine, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of New South Wales, NSW, Sydney, Australia
| | - Sami A Makharza
- College of Pharmacy and Medical Sciences, Hebron University, Hebron, Palestine
| | - Manuela Curcio
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy
| | - Paola Tucci
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy
| | - Francesca Iemma
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy
| | - Fiore Pasquale Nicoletta
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy
| | - Silke Hampel
- Leibniz Institute of Solid State and Material Research Dresden, 01171 Dresden, Germany
| | - Giuseppe Cirillo
- Department of Pharmacy Health and Nutritional Science, University of Calabria, 87036 Rende (CS), Italy.
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Barangi S, Hayes AW, Karimi G. The more effective treatment of atrial fibrillation applying the natural compounds; as NADPH oxidase and ion channel inhibitors. Crit Rev Food Sci Nutr 2017; 58:1230-1241. [PMID: 28925721 DOI: 10.1080/10408398.2017.1379000] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Atrial fibrillation (AF) is the most common cardiac arrhythmia that occurs because of several different risk factors, e.g., valvular heart disease, coronary artery disease, age ≥75 years, hypertension and diabetes mellitus. One key risk factor that results in AF, is oxidative stress. Evidence suggests that there is a correlation between oxidative processes and the genesis of AF. Oxidative stress occurs when the generation of reactive oxygen species (ROS) increase due to excessive activity of enzymes including NADPH oxidase (NOX) and xanthine oxidase; or its degradation decrease by dysfunctional antioxidant enzyme systems, such as superoxide dismutase (SOD), catalase and glutathione peroxidase (GPx). Afterwards, elevated ROS may shift ion channel activity to increase AF susceptibility. The outbreak of AF continues to grow. Unfortunately, current treatment strategies may have limited efficacy or adverse effects. On the other hand, the inhibition of ROS formation and alteration of ion channel activity could be important therapeutic targets for prevention or treatments of AF. Additionally, many studies have been shown that several natural compounds have the ability to inhibit NADPH oxidases directly. This review focuses on natural compounds which specially inhibit NOX isoforms and have direct effects on ion channels, suggesting these compounds can be helpful in AF treatment.
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Affiliation(s)
- Samira Barangi
- a Department of Pharmacodynamics and Toxicology , School of Pharmacy, Mashhad University of Medical Sciences , Mashhad , Iran
| | - A Wallace Hayes
- b Harvard University, Cambridge, MA, USA; Michigan State University , East Lansing , MI , USA
| | - Gholamreza Karimi
- a Department of Pharmacodynamics and Toxicology , School of Pharmacy, Mashhad University of Medical Sciences , Mashhad , Iran.,c Pharmaceutical Research Center , Mashhad University of Medical Sciences , Mashhad , Iran
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