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Ceresa C, Travagin F, Marchetti A, Tessarolo F, Fracchia L, Giovenzana GB, Bosetti M. An In Vitro Study on the Application of Silver-Doped Platelet-Rich Plasma in the Prevention of Post-Implant-Associated Infections. Int J Mol Sci 2024; 25:4842. [PMID: 38732057 PMCID: PMC11084394 DOI: 10.3390/ijms25094842] [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: 03/22/2024] [Revised: 04/18/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
Implant therapy is a common treatment option in dentistry and orthopedics, but its application is often associated with an increased risk of microbial contamination of the implant surfaces that cause bone tissue impairment. This study aims to develop two silver-enriched platelet-rich plasma (PRP) multifunctional scaffolds active at the same time in preventing implant-associated infections and stimulating bone regeneration. Commercial silver lactate (L) and newly synthesized silver deoxycholate:β-Cyclodextrin (B), were studied in vitro. Initially, the antimicrobial activity of the two silver soluble forms and the PRP enriched with the two silver forms has been studied on microbial planktonic cells. At the same time, the biocompatibility of silver-enriched PRPs has been assessed by an MTT test on human primary osteoblasts (hOBs). Afterwards, an investigation was conducted to evaluate the activity of selected concentrations and forms of silver-enriched PRPs in inhibiting microbial biofilm formation and stimulating hOB differentiation. PRP-L (0.3 µg/mm2) and PRP-B (0.2 µg/mm2) counteract Staphylococcus aureus, Staphylococcus epidermidis and Candida albicans planktonic cell growth and biofilm formation, preserving hOB viability without interfering with their differentiation capability. Overall, the results obtained suggest that L- and B-enriched PRPs represent a promising preventive strategy against biofilm-related implant infections and demonstrate a new silver formulation that, together with increasing fibrin binding protecting silver in truncated cone-shaped cyclic oligosaccharides, achieved comparable inhibitory results on prokaryotic cells at a lower concentration.
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Affiliation(s)
- Chiara Ceresa
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Fabio Travagin
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Alice Marchetti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Francesco Tessarolo
- Department of Industrial Engineering & BIOtech, University of Trento, 38123 Trento, Italy;
| | - Letizia Fracchia
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Giovanni Battista Giovenzana
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
| | - Michela Bosetti
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale “A. Avogadro”, 28100 Novara, Italy; (C.C.); (F.T.); (A.M.); (G.B.G.)
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Aslantürk ÖS. Cytotoxic and genotoxic effects of triphenyl phosphate on root tip cells of Allium cepa L. Toxicol In Vitro 2024; 94:105734. [PMID: 37981031 DOI: 10.1016/j.tiv.2023.105734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 11/13/2023] [Indexed: 11/21/2023]
Abstract
Triphenyl phosphate (TPhP) is a tri-ester of phosphoric acid and phenol. It is used in products such as polyvinyl chloride, hydraulic fluids, polymers, photographic films and printed circuit cards as a flame retardant. It is also widely used in consumer products like electric and electronic devices, textiles and building necessaries. TPhP can diffuse into its surrounding environment easily, because it does not form a chemical bond with polymeric materials. Therefore, bio-monitoring of such compounds is needed for possible environmental and human health effects. In this study, we evaluated genotoxicity and cytotoxicity of TPhP on Allium cepa on the cells of root tips. A 10 mg/mL stock solution of TPhP was dissolved in DMSO and dilutions of 2, 4, 6, 8 and 10 mg/mL was made in distilled water. Onion bulbs, rooted in test tubes, were exposed to these concentrations of TPhP for 24 h. Distilled water was used as a negative control, 0.7% hydrogen peroxide was used as positive control, and 0.5% DMSO was used as solvent control. Significant inhibition of onion root growth was observed following treatment with the 6, 8 and 10 mg/mL TPhP ranges in comparison with the negative and solvent control groups (p < 0.05). Furthermore, in the TPhP treatment groups, total chromosome aberration ratios were significantly high in comparison with the controls (p < 0.05). These results suggest that TPhP have cytotoxic and genotoxic effects on A. cepa root tips.
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Affiliation(s)
- Özlem Sultan Aslantürk
- Aydın Adnan Menderes University, Faculty of Science, Department of Biology, Central Campus, 09010 Aydın, Turkey.
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Córdova-González D, Alfonseca-Silva E, Gutiérrez L, Tapia-Pérez G, Sumano H. Intramammary preparation of enrofloxacin hydrochloride-dihydrate for bovine mastitis (biofilm-forming Staphylococcus aureus). J Vet Sci 2024; 25:e6. [PMID: 38311321 PMCID: PMC10839182 DOI: 10.4142/jvs.23245] [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: 10/05/2023] [Revised: 11/07/2023] [Accepted: 11/14/2023] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Chronic bovine mastitis is linked to biofilm-producing Staphylococcus aureus (bp-Sa) or Staphylococcus coagulase-negative (bp-Scn). OBJECTIVES Bp-Sa and bp-Scn were treated with intramammary preparations of either enrofloxacin HCl·2H2O-dimethyl-sulfoxide-chitosan (enro-C/DMSO/chitosan) or enro-C alone. Their potential to inhibit and degrade biofilm formation in vitro was also assessed. METHODS Milk samples were obtained from the affected quarters in a herd. Phenotypical and genotypical identifications as biofilm-producing Staphylococcus species were carried out. Enro-C/DMSO/chitosan and enro-C alone were assessed to determine their in vitro efficacy in interfering with biofilm formation and their bactericidal effects. A prolonged eight-day treatment with a twice-daily intramammary insertion of 10 mL of enro-C/DMSO/chitosan or enro-C alone was set to evaluate the clinical and bacteriological cures on day 10 in 15 cows per group and the biofilm-inhibiting ability. RESULTS Fifty-seven percent of the isolates were identified as Staphylococcus spp., of which 50% were bp-Sa, 46% bp-Scn, and 4% Staphylococcus pseudintermedius. One hundred percent of the S. aureus isolated and 77% of Staphylococcus coagulase-negative were biofilm producers. In both groups, the icaA and icaD biofilm-producing genes were identified. The experimental preparation could inhibit biofilm formation, degrade mature biofilms, and have well-defined microbicidal effects on planktonic and biofilm bacteria. The respective clinical and bacteriological cure rates were 100% and 80% for enro-C/DMSO/chitosan and 41.7% and 25% for enro-C alone. CONCLUSIONS Enro-C/DMSO/chitosan eliminates bp-Sa and bp-Scn from cases of chronic bovine mastitis.
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Affiliation(s)
- Diana Córdova-González
- Departamento de Fisiología y Farmacología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, México City 04510, México
| | - Edgar Alfonseca-Silva
- Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, México City 04510, México
| | - Lilia Gutiérrez
- Departamento de Fisiología y Farmacología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, México City 04510, México
| | - Graciela Tapia-Pérez
- Departamento de Genética y Bioestadística, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, México City 04510, México
| | - Héctor Sumano
- Departamento de Fisiología y Farmacología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, México City 04510, México.
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Buick E, Mead A, Alhubaysh A, Bou Assi P, Das P, Dayus J, Turner M, Kowalski L, Murray J, Renshaw D, Farnaud S. CellShip: An Ambient Temperature Transport and Short-Term Storage Medium for Mammalian Cell Cultures. Biopreserv Biobank 2023. [PMID: 38150708 DOI: 10.1089/bio.2023.0100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023] Open
Abstract
Cell culture is a critical platform for numerous research and industrial processes. However, methods for transporting cells are largely limited to cryopreservation, which is logistically challenging, requires the use of potentially cytotoxic cryopreservatives, and can result in poor cell recovery. Development of a transport media that can be used at ambient temperatures would alleviate these issues. In this study, we describe a novel transportation medium for mammalian cells. Five commonly used cell lines, (HEK293, CHO, HepG2, K562, and Jurkat) were successfully shipped and stored for a minimum of 72 hours and up to 96 hours at ambient temperature, after which, cells were recovered into standard culture conditions. Viability (%) and cell numbers, were examined, before, following the transport/storage period and following the recovery period. In all experiments, cell numbers returned to pretransport/storage concentration within 24-48 hours recovery. Imaging data indicated that HepG2 cells were fully adherent and had established typical growth morphology following 48 hours recovery, which was not seen in cells recovered from cryopreservation. Following recovery, Jurkat cells that had been subjected to a 96 hours transport/storage period, demonstrated a 1.93-fold increase compared with the starting cell number with >95% cell viability. We conclude that CellShip® may represent a viable method for the transportation of mammalian cells for multiple downstream applications in the Life Sciences research sector.
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Affiliation(s)
- Emma Buick
- Life Science Production, Bedford, United Kingdom
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
| | - Andrew Mead
- Comparative Biomedical Sciences, The Royal Veterinary College (RVC), London, United Kingdom
| | | | | | - Parijat Das
- Life Science Production, Bedford, United Kingdom
| | - James Dayus
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
- Faculty of Health and Life Sciences, School of Life Sciences, Coventry University, Coventry, United Kingdom
| | - Mark Turner
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
| | - Lukasz Kowalski
- Life Science Production, Bedford, United Kingdom
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
| | - Jenny Murray
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
| | - Derek Renshaw
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
| | - Sebastien Farnaud
- Center of Sport, Exercise and Life Sciences, Coventry University, Coventry, United Kingdom
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Gradinaru LM, Bercea M, Lupu A, Gradinaru VR. Development of Polyurethane/Peptide-Based Carriers with Self-Healing Properties. Polymers (Basel) 2023; 15:polym15071697. [PMID: 37050311 PMCID: PMC10096672 DOI: 10.3390/polym15071697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 03/30/2023] Open
Abstract
In situ-forming gels with self-assembling and self-healing properties are materials of high interest for various biomedical applications, especially for drug delivery systems and tissue regeneration. The main goal of this research was the development of an innovative gel carrier based on dynamic inter- and intramolecular interactions between amphiphilic polyurethane and peptide structures. The polyurethane architecture was adapted to achieve the desired amphiphilicity for self-assembly into an aqueous solution and to facilitate an array of connections with peptides through physical interactions, such as hydrophobic interactions, dipole-dipole, electrostatic, π–π stacking, or hydrogen bonds. The mechanism of the gelation process and the macromolecular conformation in water were evaluated with DLS, ATR-FTIR, and rheological measurements at room and body temperatures. The DLS measurements revealed a bimodal distribution of small (~30–40 nm) and large (~300–400 nm) hydrodynamic diameters of micelles/aggregates at 25 °C for all samples. The increase in the peptide content led to a monomodal distribution of the peaks at 37 °C (~25 nm for the sample with the highest content of peptide). The sol–gel transition occurs very quickly for all samples (within 20–30 s), but the equilibrium state of the gel structure is reached after 1 h in absence of peptide and required more time as the content of peptide increases. Moreover, this system presented self-healing properties, as was revealed by rheological measurements. In the presence of peptide, the structure recovery after each cycle of deformation is a time-dependent process, the recovery is complete after about 300 s. Thus, the addition of the peptide enhanced the polymer chain entanglement through intermolecular interactions, leading to the preparation of a well-defined gel carrier. Undoubtedly, this type of polyurethane/peptide-based carrier, displaying a sol–gel transition at a biologically relevant temperature and enhanced viscoelastic properties, is of great interest in the development of medical devices for minimally invasive procedures or precision medicine.
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Zabeu GS, Giacomini MC, Scaffa PMC, Tjäderhane L, Mosquim V, Wang L. Solvation role of dimethyl sulfoxide on the interaction with dentin bonding systems after 30 months. Dent Mater 2023; 39:478-484. [PMID: 36934035 DOI: 10.1016/j.dental.2023.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/07/2023] [Accepted: 03/03/2023] [Indexed: 03/18/2023]
Abstract
OBJECTIVES To determine whether DMSO could serve as an effective pretreatment to improve the mechanical properties and minimize the degradation of the adhesive interface, through the degree of conversion (DC) and bond strength to dentin of different categories of dentin bonding systems (DBSs) after 30 months. METHODS DMSO (0, 0.5, 1, 2, 5, 10 vol%) were incorporated into four categories of DBSs: Adper Scotchbond Multipurpose (MP), Adper Single Bond 2 (SB), Clearfil SE Bond (CSE) and Adper Scotchbond Universal (SU). DC was evaluated by Fourier transform infrared spectroscopy (FTIR). For microtensile bond strength test (µTBS), 1 % DMSO were applied on dentin as pretreatment before DBSs. For SU, both strategies were tested. Specimens for µTBS were tested after 24 h, 6 and 30 months. DC and µTBS data were subjected to two-way ANOVA and Tukey test (α < 0.05). RESULTS Incorporating 5 %/10 % DMSO increased the DC of CSE. Controversially, when combined with SU, 2 % and 10 % DMSO jeopardized the DC. Regarding µTBS, 1 % DMSO pre-treatment increased the bond strength for MP, SB, SU-ER and SU-SE. After 30 months, MP, SU-ER and SU-SE showed a decrease compared to baseline but remained higher than the control. CLINICAL SIGNIFICANCE DMSO pretreatment may be a useful strategy to improve the bond interface over time. Its incorporation seems to favor the non-solvated systems regarding DC while it seems to show long-term benefits for bond strength using 1 % DMSO for MP and SU systems.
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Affiliation(s)
- Giovanna Speranza Zabeu
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, zip code 17012-901 Bauru, SP, Brazil; School of Dentistry, Centro Universitário Sagrado Coração - UNISAGRADO, Rua Irmã Arminda, 10-50, Jardim Brasil, zip code 17011-160 Bauru, SP, Brazil
| | - Marina Ciccone Giacomini
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, zip code 17012-901 Bauru, SP, Brazil; University Centre Integrated Faculties of Ourinhos, Rodovia BR-153, Km 338 S/N Água do Cateto, zip code 19909-100 Ourinhos, SP, Brazil
| | - Polliana Mendes Candia Scaffa
- Division of Biomaterials and Biomechanics, Department of Restorative Dentistry, Oregon Health & Science University, OHSU, 2730 SW Moody Ave, zip code 97201 Portland, OR, USA
| | - Leo Tjäderhane
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland; Helsinki University Hospital, Helsinki, zip code 90220, Oulu, Finland; Research Unit of Oral Health Sciences and Medical Research Center Oulu (MRC Oulu), Oulu University Hospital, Kajaanintie 50, zip code 90220 Oulu, Finland
| | - Victor Mosquim
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, zip code 17012-901 Bauru, SP, Brazil
| | - Linda Wang
- Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of São Paulo, Alameda Octávio Pinheiro Brisolla, 9-75, zip code 17012-901 Bauru, SP, Brazil.
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Cytotoxicity Evaluation of Unmodified Paddlewheel Dirhodium(II,II)-Acetate/-Formamidinate Complexes and Their Axially Modified Low-Valent Metallodendrimers. Molecules 2023; 28:molecules28062671. [PMID: 36985643 PMCID: PMC10055960 DOI: 10.3390/molecules28062671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
Two diphenyl formamidine ligands, four dirhodium(II,II) complexes, and three axially modified low-valent dirhodium(II,II) metallodendrimers were synthesized and evaluated as anticancer agents against the A2780, A2780cis, and OVCAR-3 human ovarian cancer cell lines. The dirhodium(II,II) complexes show moderate cytotoxic activity in the tested tumor cell lines, with acetate and methyl-substituted formamidinate compounds displaying increased cytotoxicity that is relative to cisplatin in the A2780cis cisplatin resistant cell line. Additionally, methyl- and fluoro-substituted formamidinate complexes showed comparable and increased cytotoxic activity in the OVCAR-3 cell line when compared to cisplatin. The low-valent metallodendrimers show some activity, but a general decrease in cytotoxicity was observed when compared to the precursor complexes in all but one case, which is where the more active acetate-derived metallodendrimer showed a lower IC50 value in the OVCAR-3 cell line in comparison with the dirhodium(II,II) tetraacetate.
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Ranjbary AG, Saleh GK, Azimi M, Karimian F, Mehrzad J, Zohdi J. Superparamagnetic Iron Oxide Nanoparticles Induce Apoptosis in HT-29 Cells by Stimulating Oxidative Stress and Damaging DNA. Biol Trace Elem Res 2023; 201:1163-1173. [PMID: 35451693 DOI: 10.1007/s12011-022-03229-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/30/2022] [Indexed: 02/07/2023]
Abstract
Nanoparticles have garnered considerable scientific attention in recent years due to their diagnostic and therapeutic applications in cancer. The purpose of this study was to determine the effect of superparamagnetic iron oxide nanoparticles (Fe3O4 MNPs) on the induction of apoptosis in human colorectal adenocarcinoma cell line (HT-29) cells. The purpose of this study was to elucidate the mechanisms of apoptosis induced by Fe3O4 MNPs following MTT assay and to determine the optimal dose of 2.5 g/mL for inducing apoptosis in HT-29 cells. In HT-29 cells, Fe3O4 MNPs increased reactive oxygen species (ROS), calcium ion (Ca2+), and DNA damage. Additionally, the Fe3O4 MNPs significantly increased caspase 3 and 9 expression and decreased Bcl-2 expression at the protein and mRNA levels when compared to the control group (P = 0.0001). Fe3O4 MNPs also induced apoptosis in cancer cells by increasing the level of (ROS) and intracellular Ca2+, followed by an increase in caspase 3 and 9 expression and a decrease in Bcl-2 expression and direct DNA damage. Fe3O4 MNPs are an appropriate choice for colon cancer treatment based on their cell toxicity and induction of apoptosis in HT29 cells.
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Affiliation(s)
- Ali Ghorbani Ranjbary
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
- The Research Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran.
| | | | - Mohammadreza Azimi
- Department of Biochemistry, Medical Faculty, Saveh Branch, Islamic Azad University, Saveh, Iran
| | - Fatemeh Karimian
- School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Jalil Mehrzad
- Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Javad Zohdi
- Faculty of Veterinary Medicine, Department of Immunology and Oncology, Islamic Azad University-Garmsar Branch, Garmsar, Iran
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Enzymatic Hydrolysis of Rutin: Evaluation of Kinetic Parameters and Anti-Proliferative, Mutagenic and Anti-Mutagenic Effects. Life (Basel) 2023; 13:life13020549. [PMID: 36836907 PMCID: PMC9967632 DOI: 10.3390/life13020549] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023] Open
Abstract
The bioavailability of glucoside flavonoids is influenced by the nature of the sugar, glucosides being absorbed faster than rhamnoglucosides, for example. One strategy to enhance the bioavailability is enzymatic hydrolysis. In this study, some kinetic parameters of hesperidinase-mediated hydrolysis of rutin were evaluated using an UHPLC/QTOF-MSE analysis of the products of a bioconversion reaction. The resulting hydrolyzed rutins (after 4, 8 and 12 h of reaction) were submitted to anti-proliferative and Cytokinesis-Block Micronucleus (CBMN) assays in CHO-K1 cells. In the hesperidinase-mediated hydrolysis, the final concentration of quercetin-3-O-glucoside (Q3G) was directly proportional to the rutin concentration and inversely proportional to the reaction time. At an anti-proliferative concentration (2.5 μg/mL), hydrolyzed rutin derivatives did not show a mutagenic effect, except for the sample with a higher content of Q3G (after 4 h of the enzymatic hydrolysis of rutin). Moreover, the higher Q3G content in hydrolyzed rutin protected the CHO-K1 cells 92% of the time against methyl methanesulfonate-induced mutagenic damage. These results suggested that the anti-mutagenic effect of hydrolyzed rutin might be related to antioxidant and cell death induction. Presenting a good lipophilicity/hydrophilicity ratio, together with antioxidant and anti-mutagenic activities, the hesperidinase-mediated hydrolyzed rutin seemed to be a promisor raw material for the development of food supplements.
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Honarpardaz A, Daliri Joupari M, Tavakkoli S. In Vitro Chondrogenic Differentiation of Human Adipose-Derived Stem Cells by Diacerein. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2023; 22:e137803. [PMID: 38444710 PMCID: PMC10912900 DOI: 10.5812/ijpr-137803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/30/2023] [Accepted: 09/02/2023] [Indexed: 03/07/2024]
Abstract
Background Tissue engineering is the application system that tries to restore damaged tissues by different approaches, such as cellular therapy, application of cell differential factors, and various materials. One of the important goals in tissue engineering is to guide stem cells directly to the desired tissue, and researchers tried to utilize different molecules as effective factors to improve this technique. Objectives This study aims to demonstrate the effects of diacerein, a slow-acting drug for the treatment of osteoarthritis, on mesenchymal stem cell proliferation and evaluate its potential in the chondrogenesis process. Methods Stem cells were isolated from adipose tissue, characterized by flow cytometry, and cells were treated with 10-5M diacerein for three weeks. Chondrogenic gene expression of SOX9, COL2A1, ACAN, and TGFB1 were analyzed by qRT-PCR and immunocytochemistry techniques. Results Our results showed that diacerein increased the expression of the following genes involved in chondrogenesis: SOX9 (2.9-fold, P < 0.00), COL2A1 (2.2-fold, P < 0.00), ACAN (2.7-fold, P < 0.00), and TGFB1 (2.6-fold, P < 0.00). Immunocytochemistry results also showed increased production of collagen type II as the main protein marker for chondrocytes. Conclusions We observed that diacerein alone could initiate and enhance chondrogenesis, and it can be used as a differentiation factor for stem cells to chondrocyte besides its ability to inhibit IL-1β. Knowing the actual function of diacerein, it could be a good candidate for the treatment of osteoarthritis.
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Affiliation(s)
- Ali Honarpardaz
- Department of Animal Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Morteza Daliri Joupari
- Department of Animal Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Sajjad Tavakkoli
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Huang L, Li S, Zhou W, Gao J, Yin J, Wang Z, Li J. Cellular transport of uranium and its cytotoxicity effects on CHO-k1 cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 246:114166. [PMID: 36228352 DOI: 10.1016/j.ecoenv.2022.114166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/21/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Uranium is a radioactive heavy metal and a significant public health concern; however, its associated underlying toxicological mechanisms remain largely unknown. In this work, the uptake and efflux processes of uranium in CHO-k1 cells were studied and the cytotoxicity effects were explored. It was found that both the uptake and efflux processes took place rapidly and half of the internalized uranium was expelled within 8 h. The uranium exposure caused a decrease of cell viability and adhesion ability in a dose-dependent manner and blocked the cell cycle at the G1 stage. In addition, gene expression analysis revealed relative changes in the transcription of metabolism related genes. Further studies revealed that the cytotoxicity of uranium could be alleviated by exposing cells to a lower temperature or by the addition of amantadine-HCl, an endocytosis inhibitor. Interestingly, after uranium exposure, needle-like precipitates were observed in both intracellular and extracellular regions. These findings collectively suggest that the cellular transport of uranium is a rapid process that disturbs cell metabolism and induces cytotoxicity, and this impact could be reduced by slowing down endocytic processes.
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Affiliation(s)
- Liqun Huang
- China Institute for Radiation Protection, Taiyuan 030006, China; Department of Radiation Safety, China Institute of Atomic Energy, Beijing 102413, China
| | - Shufang Li
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Wenhua Zhou
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Jie Gao
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Jingjing Yin
- China Institute for Radiation Protection, Taiyuan 030006, China
| | - Zhongwen Wang
- Department of Radiation Safety, China Institute of Atomic Energy, Beijing 102413, China
| | - Jianguo Li
- China Institute for Radiation Protection, Taiyuan 030006, China.
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Zhao S, Bao Q, Ma G, Yao Y, Xie L, Xiong J. Benzo[b]fluoranthene (B[b]F) affects apoptosis, oxidative stress, mitochondrial membrane potential and expressions of blood-brain barrier markers in microvascular endothelial cells. Toxicol In Vitro 2022; 86:105522. [DOI: 10.1016/j.tiv.2022.105522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 11/02/2022] [Accepted: 11/16/2022] [Indexed: 11/20/2022]
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13
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Shear Bond Strength of Ah26 to Human Dentin Treated with Dimethyl Sulfoxide (Dmso). Dent J (Basel) 2022; 10:dj10060100. [PMID: 35735641 PMCID: PMC9221750 DOI: 10.3390/dj10060100] [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: 02/06/2022] [Revised: 05/07/2022] [Accepted: 05/30/2022] [Indexed: 02/04/2023] Open
Abstract
The purpose of this study was to examine the bond strength of AH26 to human coronal dentin exposed to DMSO. A total of 70 dentin specimens were equally divided into two groups. Each dentin surface was pre-treated with 2 mL of 2.5% NaOCl, 3 mL of EDTA 17%, and distilled water. One group was finally rinsed with 50% DMSO. Following the AH26 application, the bond strength was tested by subjecting the samples to a shear load at a crosshead speed of 0.5 mm/min using universal testing equipment. The results according to paired samples t-test indicated that there was a statistically insignificant difference between the two groups. Therefore, DMSO had no effect on the bond strength of AH26 root sealer to dentin.
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Design and Comparative Evaluation of Vancomycin HCl-Loaded Rosin-Based In Situ Forming Gel and Microparticles. Gels 2022; 8:gels8040231. [PMID: 35448132 PMCID: PMC9031275 DOI: 10.3390/gels8040231] [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: 03/25/2022] [Revised: 04/03/2022] [Accepted: 04/06/2022] [Indexed: 11/21/2022] Open
Abstract
Vancomycin hydrochloride (HCl) is a glycopeptide antibiotic used to treat serious or life-threatening infections, and it reduces plaque scores and gingivitis in periodontal patients. In this study, vancomycin HCl was incorporated into rosin in situ forming gel (ISG) and rosin in situ forming microparticles (ISM) to generate a local drug delivery system to treat periodontal disease. The physical properties of the ISG and ISM were measured, including pH, viscosity, injectability, adhesion properties, in-vitro transformation, and drug release. Moreover, the effectiveness of antimicrobial activity was tested using the agar-cup diffusion method against Staphylococcus aureus, Streptococcus mutans, Porphyromonas gingivalis, and Escherichia coli. Vancomycin HCl-loaded rosin-based ISG and ISM had a pH value in the range of 5.02−6.48 and exhibited the ease of injection with an injection force of less than 20 N. Additionally, the lubricity effect of the external oil phase of ISM promoted less work of injection than ISG and 40−60% rosin-based ISM showed good emulsion stability. The droplet size of emulsions containing 40%, 50%, and 60% rosin was 98.48 ± 16.11, 125.55 ± 4.75, and 137.80 ± 16.8 µm, respectively. Their obtained microparticles were significantly smaller in diameter, 78.63 ± 12.97, 93.81 ± 10.53, and 118.32 ± 15.61 µm, respectively, because the particles shrank due to the solvent loss from solvent exchange. Moreover, increasing the concentration of rosin increased the size of microparticles. After phase transformation, all formulations had better plasticity properties than elasticity; therefore, they could easily adapt to the specific shape of a patient’s gum cavity. Both developed ISG and ISM presented inhibition zones against S. mutans and P. gingivalis, with ISG presenting significantly more effectively against these two microbes (p < 0.05). The vancomycin HCl-loaded rosin ISG and ISM delayed drug release for 7 days with efficient antimicrobial activities; thus, they exhibit potential as the drug delivery systems for periodontitis treatment.
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Lertsuphotvanit N, Santimaleeworagun W, Narakornwit W, Chuenbarn T, Mahadlek J, Chantadee T, Phaechamud T. Borneol-based antisolvent-induced in situ forming matrix for crevicular pocket delivery of vancomycin hydrochloride. Int J Pharm 2022; 617:121603. [DOI: 10.1016/j.ijpharm.2022.121603] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/23/2022] [Accepted: 02/16/2022] [Indexed: 01/31/2023]
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16
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Sinha M, Chakraborty U, Kool A, Chakravarti M, Das S, Ghosh S, Thakur L, Khuranna A, Nayak D, Basu B, Kar S, Ray R, Das S. In-vitro antiviral action of Eupatorium perfoliatum against dengue virus infection: Modulation of mTOR signaling and autophagy. JOURNAL OF ETHNOPHARMACOLOGY 2022; 282:114627. [PMID: 34509603 DOI: 10.1016/j.jep.2021.114627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/26/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dengue virus (DENV) is a re-emerging mosquito-borne flavivirus that has recently engendered large epidemics around the world. Consequently antivirals with effective anti-DENV therapeutic activity are urgently required. In the 18th century, Europeans, as well as native inhabitants of North America, were known to adapt the medicinal property of the common perennial plant Eupatorium perfoliatum L. to treat fever and infections. Previous studies have shown that Eupatorium perfoliatum L. possesses anti-inflammatory, anti-oxidative, anti-plasmodial, anti-bacterial and antiviral activities. However, to the best of our knowledge, no anti-DENV activity of E. perfoliatum L. has been investigated at the molecular level so far. AIM OF STUDY Here, for the first time we have attempted to study the action of E. perfoliatum extract and its few bioactive components i.e., quercetin, caffeic acid and eupafolin against wild primary clinical isolate of DENV-2 infection in an in vitro model. MATERIALS AND METHODS The presence of the bioactive components in the E. perfoliatum extract, were analyzed by HPLC- DAD. Then, CC50 as well as IC50 values of the extract and its bioactive components were measured against DENV in HepG2 cell line. After that, the antiviral activity was studied by Time of addition assay using qRT-PCR. Further, the downstream signalling action of E. perfoliatum extract, was studied by Human phosphorylation MAPK antibody array, followed by immunofluorescence microscopy. Moreover, a molecular docking analysis was done to study the binding affinity of bioactive components of E. perfoliatum extract with TIM-1 transmembrane receptor protein, which is known for viral internalization. RESULT We found that E. perfoliatum extract has marked antiviral activity during pre-treatment against DENV infection in HepG2 cell line. The extract also significantly reduced the DENV induced autophagy in HepG2 cell line as detected by LC3 II localization. The presence of different bioactive compounds in E. perfoliatum extract were confirmed by HPLC-DAD. In the bioactive components, in parallel to earlier studies, quercetin showed the most significant preventive action against DENV infection. Further, in molecular docking analysis also, quercetin showed the strongest binding affinity towards DENV membrane receptor TIM-1 protein. CONCLUSION Our findings suggests that E. perfoliatum extract has significant potential to be an anti-DENV therapeutic agent. Moreover, among the bioactive components, quercetin may have a prophylaxis role in executing the antiviral activity of E. perfoliatum extract against DENV infection.
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Affiliation(s)
- Moonmoon Sinha
- Department of Microbiology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata-700019, India; Department of Virology, Dr. Anjali Chatterjee Regional Research Institute, Kolkata-700035, India; Department of Microbiology, Institute of Post Graduate Medical Education and Research, Kolkata-700020, India.
| | - Urmita Chakraborty
- Department of Virology, Dr. Anjali Chatterjee Regional Research Institute, Kolkata-700035, India.
| | - Anirban Kool
- Department of Virology, Dr. Anjali Chatterjee Regional Research Institute, Kolkata-700035, India.
| | - Mousumi Chakravarti
- Department of Virology, Dr. Anjali Chatterjee Regional Research Institute, Kolkata-700035, India.
| | - Souvik Das
- Department of Neuroendocrinology and Experimental Hematology, Chittaranjan National Cancer Institute, Kolkata-700026, India.
| | - Sandip Ghosh
- Department of Neuroendocrinology and Experimental Hematology, Chittaranjan National Cancer Institute, Kolkata-700026, India.
| | - Lovnish Thakur
- School of Biosciences, Apeejay Stya University, Gurugram, Haryana-122103, India.
| | - Anil Khuranna
- Central Council for Research in Homoeopathy, Ministry of AYUSH, Govt. of India, Janakpuri, New Delhi-111058, India.
| | - Debadatta Nayak
- Central Council for Research in Homoeopathy, Ministry of AYUSH, Govt. of India, Janakpuri, New Delhi-111058, India.
| | - Biswarup Basu
- Department of Neuroendocrinology and Experimental Hematology, Chittaranjan National Cancer Institute, Kolkata-700026, India.
| | - Subhabrata Kar
- School of Biosciences, Apeejay Stya University, Gurugram, Haryana-122103, India.
| | - Raja Ray
- Department of Microbiology, University of Calcutta, 35 Ballygunge Circular Road, Kolkata-700019, India; Department of Microbiology, Institute of Post Graduate Medical Education and Research, Kolkata-700020, India.
| | - Satadal Das
- Department of Virology, Dr. Anjali Chatterjee Regional Research Institute, Kolkata-700035, India.
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Wu K, He C, Wu Y, Zhou X, Liu P, Tang W, Yu M, Tian W. Preservation of Small Extracellular Vesicle in Gelatin Methacryloyl Hydrogel Through Reduced Particles Aggregation for Therapeutic Applications. Int J Nanomedicine 2021; 16:7831-7846. [PMID: 34876812 PMCID: PMC8643206 DOI: 10.2147/ijn.s334194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 11/17/2021] [Indexed: 02/05/2023] Open
Abstract
PURPOSE Small extracellular vesicles (sEV) play an irreplaceable role in cell-cell communication. However, sEV in solution aggregate with each other during preservation, leading to impairment of the structures, contents, and functions of sEV. Therefore, there is a need to develop an optimal preservation method that combines high recovery rate, low cost, convenience, and easy-transportation in one. In this study, a new preservation strategy different from the cryopreservation or lyophilization was developed by reducing sEV particles aggregation. METHODS The sEV were encapsulated in thermoresponsive gelatin methacryloyl (GelMA) hydrogels at 4°C to reduce particles aggregation during the reversible cross-linking process. The sEV movement was visualized in different mediums and particles' number, size, structure and protein of 28 days preserved sEV were compared to fresh sEV. Human umbilical vein endothelial cells (HUVEC) and rat adipose-derived stromal stem cells (rASC) were isolated and cultured with fresh and preserved sEV to test the cellular response. A mice subcutaneous model was adopted to detect controlled release and angiogenesis ability of preserved sEV. RESULTS Through particles tracks visualization, GelMA hydrogels significantly decreased the sEV movement. After 28 days preservation in GelMA at 4°C, the particles number, size, structure and protein of sEV were similar to fresh sEV. In vitro, preserved sEV had the same ability to promote cell proliferation, migration and angiogenesis as fresh sEV. In vivo, preserved sEV-GelMA could artificially regulate the absorptivity of GelMA hydrogels and controlled released sEV for therapeutic application, and preserved sEV encapsulated in GelMA significantly promoted angiogenesis in mice. CONCLUSION Our results demonstrated that sEV encapsulated in GelMA could be a novel strategy for long-term preservation of sEV for therapeutic application.
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Affiliation(s)
- Kelun Wu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, Sichuan, People’s Republic of China
| | - Chuan He
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, Sichuan, People’s Republic of China
| | - Yue Wu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, Sichuan, People’s Republic of China
| | - Xiaojie Zhou
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, Sichuan, People’s Republic of China
| | - Pan Liu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, Sichuan, People’s Republic of China
| | - Wei Tang
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, Sichuan, People’s Republic of China
| | - Mei Yu
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
| | - Weidong Tian
- State Key Laboratory of Oral Disease & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Oral Regenerative Medicine, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China School of Stomatology, Sichuan University, Chengdu, People’s Republic of China
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610065, Sichuan, People’s Republic of China
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18
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Cryopreservation Engineering Strategies for Mass Production of Adipose-Derived Stem Cells. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-019-1359-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Stape THS, Mutluay MM, Tjäderhane L, Uurasjärvi E, Koistinen A, Tezvergil-Mutluay A. The pursuit of resin-dentin bond durability: Simultaneous enhancement of collagen structure and polymer network formation in hybrid layers. Dent Mater 2021; 37:1083-1095. [PMID: 33863568 DOI: 10.1016/j.dental.2021.03.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/28/2021] [Accepted: 03/28/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Imperfect polymer formation as well as collagen's susceptibility to enzymatic degradation increase the vulnerability of hybrid layers over time. This study investigated the effect of new dimethyl sulfoxide (DMSO)-containing pretreatments on long-term bond strength, hybrid layer quality, monomer conversion and collagen structure. METHODS H3PO4-etched mid-coronal dentin surfaces from extracted human molars (n = 8) were randomly treated with aqueous and ethanolic DMSO solutions or following the ethanol-wet bonding technique. Dentin bonding was performed with a three-step etch-and-rinse adhesive. Resin-dentin beams (0.8 mm2) were stored in artificial saliva at 37 °C for 24 h and 2.5 years, submitted to microtensile bond strength testing at 0.5 mm/min and semi-quantitative SEM nanoleakage analysis (n = 8). Micro-Raman spectroscopy was used to determine the degree of conversion at different depths in the hybrid layer (n = 6). Changes in the apparent modulus of elasticity of demineralized collagen beams measuring 0.5 × 1.7 × 7 mm (n = 10) and loss of dry mass (n = 10) after 30 days were calculated via three-point bending and precision weighing, respectively. RESULTS DMSO-containing pretreatments produced higher bond strengths, which did not change significantly over time presenting lower incidence of water-filled zones. Higher uniformity in monomer conversion across the hybrid layer occurred for all pretreatments. DMSO-induced collagen stiffening was reversible in water, but with lower peptide solubilization. SIGNIFICANCE Improved polymer formation and higher stability of the collagen-structure can be attributed to DMSO's unique ability to simultaneously modify both biological and resin components within the hybrid layer. Pretreatments composed of DMSO/ethanol may be a viable-effective alternative to extend the longevity of resin-dentin bonds.
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Affiliation(s)
- Thiago Henrique Scarabello Stape
- Department of Restorative Dentistry and Cariology, Adhesive Dentistry Research Group, Institute of Dentistry, University of Turku, Turku, Finland; Turku University Hospital, TYKS, University of Turku, Turku, Finland.
| | - Mustafa Murat Mutluay
- Department of Restorative Dentistry and Cariology, Adhesive Dentistry Research Group, Institute of Dentistry, University of Turku, Turku, Finland; Department of Prosthodontics and Clinical Dentistry, Institute of Dentistry, University of Eastern Finland, Kuopio, Finland.
| | - Leo Tjäderhane
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland and Helsinki University Hospital, Helsinki, Finland; Research Unit of Oral Health Sciences and Medical Research Center Oulu (MRC Oulu), Oulu University Hospital and University of Oulu, Oulu, Finland.
| | | | - Arto Koistinen
- University of Eastern Finland, SIB Labs, Kuopio, Finland.
| | - Arzu Tezvergil-Mutluay
- Department of Restorative Dentistry and Cariology, Adhesive Dentistry Research Group, Institute of Dentistry, University of Turku, Turku, Finland; Turku University Hospital, TYKS, University of Turku, Turku, Finland.
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20
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Wang L, Fu H, Wang W, Liu Y, Li X, Yang J, Li L, Wu G, Pan Y. Notoginsenoside R1 functionalized gelatin hydrogels to promote reparative dentinogenesis. Acta Biomater 2021; 122:160-171. [PMID: 33348063 DOI: 10.1016/j.actbio.2020.12.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 12/10/2020] [Accepted: 12/14/2020] [Indexed: 12/20/2022]
Abstract
Pulp-capping materials are commonly adopted in the clinic to form reparative dentin and thus protect dental pulp tissues from cases of deep caries, accidentally exposed pulps or partial pulpotomy. Some traditional pulp capping materials used in the clinic include calcium hydroxide and mineral trioxide aggregates. However, there are limitations to thin restorative dentin, and a long period of time is needed to cause degenerative changes in dental pulp. In this paper, injectable colloidal gels were developed to induce the formation of reparative dentin through a simple UV method from methacrylic acid functionalized gelatin loaded with notoginsenoside R1 (Gel-MA/NGR1). The results of the physicochemical property examinations showed that the prepared Gel-MA/NGR1 hydrogel possessed an appropriate interconnected porous microarchitecture with a pore size of 10.5 micrometres and suitable mechanical properties with a modulus of 50-60 kPa, enabling cell adhesion and proliferation. The hydrogel remained hydrophilic with sustained drug release performance. In addition, Gel-MA/NGR1 significantly enhanced the odontogenetic differentiation of mouse dental papilla cells by elevating the expression levels of the dentinogenic markers ALP and OCN and extracellular matrix mineralization. In vivo stimulation was carried out by injecting the precursors into the predrilled alveolar cavity of Sprague-Dawley rats followed by immediate in situ UV crosslinking. The results showed that Gel-MA/NGR1 has a strong capacity to promote reparative dentin formation. Haematoxylin& eosin, Masson, and immunohistochemical staining (DMP-1, DSPP, OCN and RUNX2) and micro-CT were employed to illustrate the effectiveness of dentinogenesis, and the relative volumes of calcification were found to have increased ~175-fold. All of the results showed that the Gel-MA/NGR1 hydrogel promoted reparative dentin formation, which suggests that this hydrogel provides great potential as a pulp-capping material to induce dentin formation.
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Affiliation(s)
- Lei Wang
- Institute of Stomatology, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang325027, China; Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and VrijeUniversiteit Amsterdam (VU), 1081 LA, Amsterdam, the Netherlands; Wenzhou Institute of Biomaterials & Engineering, University of Chinese Academy of Science, Wenzhou, Zhejiang325027, China
| | - Hui Fu
- Institute of Stomatology, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang325027, China
| | - Wenwen Wang
- Nanjing Drum Tower Hospital Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing210008, China; Engineering Research Center of Clinical Functional Materials and Diagnosis & Treatment Devices of Zhejiang Province, Wenzhou Institute of Biomaterials and Engineering, Wenzhou, Zhejiang325027, China
| | - Yi Liu
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou510140, China
| | - Xumin Li
- Institute of Stomatology, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang325027, China; Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and VrijeUniversiteit Amsterdam (VU), 1081 LA, Amsterdam, the Netherlands
| | - Jijing Yang
- Institute of Stomatology, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang325027, China
| | - Lingli Li
- State Key Laboratory of Ophthalmology, Optometry and Visual Science, Wenzhou Medical University, Wenzhou325027, China.
| | - Gang Wu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and VrijeUniversiteit Amsterdam (VU), 1081 LA, Amsterdam, the Netherlands; Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), VrijeUniversiteit Amsterdam (VU), Amsterdam Movement Science, Amsterdam, the Netherlands.
| | - Yihuai Pan
- Institute of Stomatology, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang325027, China; Department of Endodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China.
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21
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Salim Al-Ani AAS, Salim IA, Seseogullari-Dirihan R, Mutluay M, Tjäderhane L, Tezvergil-Mutluay A. Incorporation of dimethyl sulfoxide into experimental hydrophilic and hydrophobic adhesive resins: evaluation of cytotoxic activities. Eur J Oral Sci 2021; 129:e12756. [PMID: 33511712 DOI: 10.1111/eos.12756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/17/2020] [Accepted: 11/18/2020] [Indexed: 11/28/2022]
Abstract
This study evaluated the cytotoxicity of methacrylate-based resins containing dimethyl sulfoxide (DMSO). DMSO was incorporated into hydrophobic (R2) and hydrophilic (R5) resins at weight concentrations of 0, 0.01, 0.1, 1, 5, or 10 w/w %. Resin discs (n = 10/group) were prepared. Human gingival fibroblasts (HGF-1) were exposed to resin eluates for 24 h. Furthermore, dentin barrier test was performed using 3-D cultures of odontoblast-like cells (SV40 transfected pulp derived cells) with dentin slices of 400 µm thickness (n = 8). After acid etching of dentin, DMSO-modified resins were applied into the cavity part of the device and light-cured for 20 s. Cell viability (%) was assessed by MTT and analyzed spectrometrically. Data were analyzed by ANOVA and Tukey test (α = 0.05). Resin eluates showed statistically significantly lower % cell viability for all neat and DMSO-modified resins than seen for the negative control. Moreover, DMSO-R5 eluates resulted in significantly lower % cell viability than DMSO-R2 emulates. The dentin barrier test showed that DMSO-R2 did not result in significantly lower % cell viability, whereas incorporation of 1-10 w/w % DMSO into R5 resulted in significantly lower % of cell viability. Incorporating DMSO into hydrophilic self-etching resins may increase cytotoxicity. The biocompatibility is not influenced by the addition of DMSO into hydrophobic resin.
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Affiliation(s)
- Anas Aaqel Salim Salim Al-Ani
- Finnish Doctoral Program in Oral Sciences (FINDOS), Institute of Dentistry, Faculty of Medicine, University of Turku, Turku, Finland.,Department of Cariology and Restorative Dentistry, Institute of Dentistry, University of Turku, Turku, Finland.,Adhesive Dentistry Research Group, Biomaterials and Medical Device Research Program, Turku, Finland
| | - Ikram Aqel Salim
- Finnish Doctoral Program in Oral Sciences (FINDOS), Institute of Dentistry, Faculty of Medicine, University of Turku, Turku, Finland.,Department of Cariology and Restorative Dentistry, Institute of Dentistry, University of Turku, Turku, Finland.,Adhesive Dentistry Research Group, Biomaterials and Medical Device Research Program, Turku, Finland
| | - Roda Seseogullari-Dirihan
- Department of Cariology and Restorative Dentistry, Institute of Dentistry, University of Turku, Turku, Finland.,Adhesive Dentistry Research Group, Biomaterials and Medical Device Research Program, Turku, Finland
| | - Murat Mutluay
- Department of Cariology and Restorative Dentistry, Institute of Dentistry, University of Turku, Turku, Finland.,Adhesive Dentistry Research Group, Biomaterials and Medical Device Research Program, Turku, Finland.,Department of Prosthetic Dentistry, Institute of Dentistry, University of Eastern Finland, Kuopio, Finland
| | - Leo Tjäderhane
- Department of Oral and Maxillofacial Diseases, Helsinki University Hospital, University of Helsinki, Helsinki, Finland.,Research Unit of Oral Health Sciences, Medical Research Center Oulu (MRC Oulu), Oulu University Hospital and University of Oulu, Oulu, Finland
| | - Arzu Tezvergil-Mutluay
- Department of Cariology and Restorative Dentistry, Institute of Dentistry, University of Turku, Turku, Finland.,Adhesive Dentistry Research Group, Biomaterials and Medical Device Research Program, Turku, Finland.,Turku University Hospital, TYKS, University of Turku, Turku, Finland
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22
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Elika V, Kunam D, Anumula L, Chinni SK, Govula K. Comparative evaluation of Chloroquick with Triphala, sodium hypochlorite, and ethylenediaminetetraacetic acid on the microhardness of root canal dentin: An in vitro study. J Clin Transl Res 2021; 7:72-76. [PMID: 34104810 PMCID: PMC8177017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 10/11/2020] [Accepted: 10/21/2020] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Irrigating solutions used for the elimination of microorganisms during root canal preparation affect the chemical and physical properties of dentin, thereby rendering the tooth more prone to fracture. Therefore, the careful and judicious selection of irrigant is required which has maximum benefits with minimum undesirable properties. AIM The study aimed to compare and evaluate the effect of Chloroquick with composition of 18% etidronic acid+ 5% sodium hypochlorite (NaOCl) with other irrigants such as Triphala, NaOCl, and ethylenediaminetetraacetic acid (EDTA) on the microhardness of root canal dentin. METHODS Forty freshly extracted non-carious single-rooted human teeth were collected and decoronated at CEJ to standardize the canal length. The roots were sectioned longitudinally to get two halves. Baseline microhardness evaluation was done using Vickers microhardness test before the immersion in irrigants; samples were then randomly divided into four groups (n=20), based on the irrigant used as follows: Group 1 - Saline; Group 2 - 5% NaOCl +17% EDTA; Group 3 - Triphala; and Group 4 - Chloroquick. Later, the samples were immersed in the irrigating solutions for 15 min at 37°C for each group and were then subjected to post-treatment microhardness testing. Microhardness values were recorded and statistically analyzed using one-way ANOVA and intergroup comparison with post hoc Tukey test (P<0.05). RESULTS The results of the present study showed that all the tested specimens showed a decrease in the microhardness values following application of different irrigating solutions except the control group. The use of Triphala and Chloroquick has minimal effect on the microhardness of root canal dentin post-treatment when compared with 5% NaOCl and 17% EDTA. CONCLUSION Chloroquick, as well as 0.005% Triphala, can be used safely as an irrigating solution with less detrimental effects on the hardness of root dentin. RELEVANCE FOR PATIENTS The newer irrigant Chloroquick shows less effect on dentin microhardness, thereby reducing the incidence of root fractures in patients postoperatively.
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Affiliation(s)
- Vaishnavi Elika
- Conservative Dentistry and Endodontics, Narayana Dental College and Hospital. Chintareddypalem, Nellore, India
| | - Divya Kunam
- Conservative Dentistry and Endodontics, Narayana Dental College and Hospital. Chintareddypalem, Nellore, India,
Corresponding author: Divya Kunam Narayana Dental College and Hospital, Chintareddypalem, Nellore Tel.: 0861-9566053135 E-mail:
| | - Lavanya Anumula
- Conservative Dentistry and Endodontics, Narayana Dental College and Hospital. Chintareddypalem, Nellore, India
| | - Suneel kumar Chinni
- Conservative Dentistry and Endodontics, Narayana Dental College and Hospital. Chintareddypalem, Nellore, India
| | - Kiranmayi Govula
- Conservative Dentistry and Endodontics, Narayana Dental College and Hospital. Chintareddypalem, Nellore, India
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Sirotkin AV, Tarko A, Alexa R, Fakova A, Alwasel S, Harrath AH. Bee pollens originating from different species have unique effects on ovarian cell functions. PHARMACEUTICAL BIOLOGY 2020; 58:1092-1097. [PMID: 33152257 PMCID: PMC7646543 DOI: 10.1080/13880209.2020.1839514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 10/12/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
CONTEXT The species-specific differences and mechanisms of action of bee pollen on reproduction have not been well studied. OBJECTIVE We compared the effects of bee pollen extracts from different plants on ovarian cell functions. MATERIALS AND METHODS We compared the effects of pollens from black alder, dandelion, maize, rapeseed, and willow at 0, 0.01, 0.1, 1, 10, or 100 µg/mL on cultured porcine ovarian granulosa cells. Cell viability was assessed with a Trypan blue test, the cell proliferation marker (PCNA), and an apoptosis marker (BAX) were assessed by immunocytochemistry. Insulin-like growth factor (IGF-I) release was measured by an enzyme-linked immunosorbent assay. RESULTS Addition of any bee pollen reduced cell viability, promoted accumulation of both proliferation and apoptosis markers, and promoted IGF-I release. The ability of various pollens to suppress cell viability ranked as follows: rapeseed > dandelion > alder > maize > willow. The biological activity of bee pollens regarding their stimulatory action on ovarian cell proliferation ranked as follows: dandelion > willow > maize > alder > rapeseed. Cell apoptosis was promoted by pollens as follows: range > dandelion > alder > rapeseed > willow > maize. The ability of the pollens to stimulate IGF-I output are as follows: willow > dandelion > rapeseed > maize > alder. DISCUSSION Bee pollen can promote ovarian cell proliferation by promoting IGF-I release, but it induces the dominance of apoptosis over proliferation and the reduction in ovarian cell viability in a species-specific manner. CONCLUSIONS This is the first demonstration of adverse effects of bee pollen on ovarian cell viability and of its direct stimulatory influence on proliferation, apoptosis, and IGF-I release. The biological potency of bee pollen is dependent on the plant species.
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Affiliation(s)
- Alexander V. Sirotkin
- Department of Zoology and Anthropology, Constantine the Philosopher University in Nitra, Nitra, Slovakia
- Research Institute of Animal Production Nitra, Lužianky, Slovakia
| | - Adam Tarko
- Department of Zoology and Anthropology, Constantine the Philosopher University in Nitra, Nitra, Slovakia
| | - Richard Alexa
- Department of Zoology and Anthropology, Constantine the Philosopher University in Nitra, Nitra, Slovakia
| | - Alla Fakova
- Research Institute of Animal Production Nitra, Lužianky, Slovakia
| | - Saleh Alwasel
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
| | - Abdel Halim Harrath
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
- Higher Institute of Applied Biological Sciences of Tunis, University of Tunis El Manar, Tunis, Tunisia
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Ding C, Zhang F, Gao Y, Li Y, Cheng D, Wang J, Mao L. Antibacterial Photodynamic Treatment of Porphyromonas gingivalis with Toluidine Blue O and a NonLaser Red Light Source Enhanced by Dihydroartemisinin. Photochem Photobiol 2020; 97:377-384. [PMID: 32959424 DOI: 10.1111/php.13333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 09/07/2020] [Indexed: 12/29/2022]
Abstract
In vitro experiments confirmed that antibacterial photodynamic treatment (aPDT) inactivates periodontal pathogens. However, more effective sterilization is needed in the complex oral environment. This study tested whether dihydroartemisinin (DHA) enhanced the photokilling effect of aPDT on Porphyromonas gingivalis (P. gingivalis) in planktonic and biofilm states. aPDT combining toluidine blue O (TBO) with 630 nm red light was performed on bacterial suspensions and biofilms in vitro with different final concentrations of DHA (10, 20 and 40 μg mL-1 ). The sensitization mechanism was preliminarily investigated by uptake experiments. The above experiments were repeated with different incubation times (30, 60, 120 s). Porphyromonas gingivalis biofilms exhibited significantly higher resistance to aPDT than P. gingivalis in suspension under the same experimental parameters. DHA alone had no cytotoxic effect on P. gingivalis with or without light irradiation. In either bacterial suspensions or biofilms, DHA concentration-dependently enhanced the photokilling effect of aPDT and increased TBO uptake by P. gingivalis. Prolonged incubation time enhanced the photokilling efficiency of aPDT until cellular TBO uptake reached saturation. DHA can enhance aPDT activity against P. gingivalis in planktonic and biofilm states. DHA also accelerated TBO uptake, reducing incubation time.
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Affiliation(s)
- Chao Ding
- Department of Stomatology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Fengmin Zhang
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Yuwei Gao
- Department of Stomatology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yujun Li
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Dechun Cheng
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Jielin Wang
- Department of Microbiology, Harbin Medical University, Harbin, China
| | - Limin Mao
- Department of Stomatology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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Çelik N, Işcan Yapar M, Taghizadehghalehjoughi A, Nalcı KA. Influence of resveratrol application with pulp-capping materials on the genetic expression levels of stem cells. Int Endod J 2020; 53:1253-1263. [PMID: 32515014 DOI: 10.1111/iej.13345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 06/03/2020] [Accepted: 06/03/2020] [Indexed: 11/30/2022]
Abstract
AIM To evaluate in a laboratory setting the response of human mesenchymal stem cells (MSCs) to pulp-capping materials with and without resveratrol (RSV). METHODOLOGY Five materials, Calcimol LC, Life, TheraCal LC, ProRoot MTA and Biodentine, were prepared according to the manufacturers' instructions. Human MSCs were then exposed to these materials, with and without RSV, for 24 h (n = 8). Cell viability was evaluated using the MTT assay, and total cell death was quantified by annexin V-FITC staining with flow cytometry. The expression levels of the IL-8, IL-10, HBD-2 and BCL-2 genes were investigated using real-time polymerase chain reaction (RT-PCR). Data obtained from MTT test were analysed using one-way anova, and Tukey's multiple-comparison test. The paired Student t test was employed to compare the effects of materials on gene expression (significance level of 5%). RESULTS The group cell viabilities were Calcimol LC 53%, Life 43%, TheraCal LC 78%, ProRoot MTA 75% and Biodentine 78%. Calcimol LC and Life exhibited significant differences compared with the control groups (P < 0.05). The percentages of necrotic/late apoptotic cells associated with Calcimol LC and TheraCal LC were greater than in the other materials. However, when RSV was added to wells containing materials, cell viability increased to Calcimol LC 63%, Life 52%, TheraCal LC 82%, ProRoot MTA 91% and Biodentine 96%, and the percentages of early apoptotic and late apoptotic/necrotic cells decreased. Calcimol LC + RSV and Life + RSV differed significantly from the control group (P < 0.05). The expression of IL-8 gene was high for all materials, ProRoot MTA caused significant overexpression, and the addition of RSV reduced the expression of IL-8 in the Calcimol LC, TheraCal LC and ProRoot MTA groups and led to increased expression of IL-10 in the Calcimol LC, Life and Biodentine groups. HBD-2 and BCL-2 exhibited increased expression in ProRoot MTA with RSV (P < 0.05). CONCLUSIONS The addition of RSV exerted a protective effect on MSCs and regulated the inflammatory process by altering the expression levels of pro- and anti-inflammatory genes.
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Affiliation(s)
- N Çelik
- Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
| | - M Işcan Yapar
- Department of Restorative Dentistry, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
| | - A Taghizadehghalehjoughi
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - K A Nalcı
- Department of Medical Pharmacology, Faculty of Medicine, Atatürk University, Erzurum, Turkey
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Chen H, Feng R, Muhammad I, Abbas G, Zhang Y, Ren Y, Huang X, Zhang R, Diao L, Wang X, Li G. Protective effects of hypericin against infectious bronchitis virus induced apoptosis and reactive oxygen species in chicken embryo kidney cells. Poult Sci 2020; 98:6367-6377. [PMID: 31399732 PMCID: PMC7107269 DOI: 10.3382/ps/pez465] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 07/26/2019] [Indexed: 12/17/2022] Open
Abstract
Avian infectious bronchitis virus (IBV), a coronavirus, causes infectious bronchitis leading to enormous economic loss in the poultry industry worldwide. Hypericin (HY) is an excellent compound that has been investigated in antiviral, antineoplastic, and antidepressant. To investigate the inhibition effect of HY on IBV infection in chicken embryo kidney (CEK) cells, 3 different experimental designs: pre-treatment of cells prior to IBV infection, direct treatment of IBV-infected cells, and pre-treatment of IBV prior to cell infection were used. Quantitative real-time PCR (qRT-PCR), immunofluorescence assay (IFA), flow cytometry, and fluorescence microscopy were performed and virus titer was determined by TCID50. The results revealed that HY had a good anti-IBV effect when HY directly treated the IBV-infected cells, and virus infectivity decreased in a dose-dependent manner. Furthermore, HY inhibited IBV-induced apoptosis in CEK cells, and significantly reduced the mRNA expression levels of Fas, FasL, JNK, Bax, Caspase 3, and Caspase 8, and significantly increased Bcl-2 mRNA expression level in CEK cells. In addition, HY treatment could decrease IBV-induced reactive oxygen species (ROS) generation in CEK cells. These results suggested that HY showed potential antiviral activities against IBV infection involving the inhibition of apoptosis and ROS generation in CEK cells.
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Affiliation(s)
- Huijie Chen
- Key Laboratory for Laboratory Animals and Comparative Medicine of Heilongjiang Province, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.,College of Biological and Pharmaceutical Engineering, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Rui Feng
- Key Laboratory for Laboratory Animals and Comparative Medicine of Heilongjiang Province, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Ishfaq Muhammad
- Key Laboratory for Laboratory Animals and Comparative Medicine of Heilongjiang Province, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Ghulam Abbas
- Key Laboratory for Laboratory Animals and Comparative Medicine of Heilongjiang Province, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yue Zhang
- Key Laboratory for Laboratory Animals and Comparative Medicine of Heilongjiang Province, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yudong Ren
- College of Electrical and Information, Northeast Agricultural University, Harbin 150030, China
| | - Xiaodan Huang
- Key Laboratory for Laboratory Animals and Comparative Medicine of Heilongjiang Province, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Ruili Zhang
- Key Laboratory for Laboratory Animals and Comparative Medicine of Heilongjiang Province, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Lei Diao
- College of Biological and Pharmaceutical Engineering, Jilin Agriculture Science and Technology College, Jilin 132101, China
| | - Xiurong Wang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150001, China
| | - Guangxing Li
- Key Laboratory for Laboratory Animals and Comparative Medicine of Heilongjiang Province, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
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Silva CM, Ferrari GD, Alberici LC, Malaspina O, Moraes KCM. Cellular and molecular effects of silymarin on the transdifferentiation processes of LX-2 cells and its connection with lipid metabolism. Mol Cell Biochem 2020; 468:129-142. [PMID: 32185674 DOI: 10.1007/s11010-020-03717-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 03/06/2020] [Indexed: 12/17/2022]
Abstract
Fibrosis process in the liver is a clinical condition established in response to chronic lesions and may be reversible in many situations. In this process, hepatic stellate cells (HSCs) activate and produce extracellular matrix compounds. During fibrosis, the lipid metabolism is also altered and contributes to the transdifferentiation of the HSCs. Thus, controlling lipid metabolism in HSCs is suggested as a method to control or reverse the fibrotic condition. In the search for therapies that modulate lipid metabolism and treat liver diseases, silymarin has been identified as a relevant natural compound to treat liver pathologies. The present study aimed to evaluate the cellular and molecular effects of silymarin in the transdifferentiation process of HSCs (LX-2) from activated phenotype to a more quiesced-like cells , also focusing on understanding the modulatory effects of silymarin on lipid metabolism of HSCs. In our analyses, 100 µM of silymarin reduced the synthesis of actin filaments in activated cells, the synthesis of the protein level of α-SMA, and other pro-fibrotic factors such as CTGF and PFGF. The concentration of 150 µM silymarin did not reverse the activation aspects of LX-2 cells. However, both evaluated concentrations of the natural compound protected the cells from the negative effects of dimethyl sulfoxide (DMSO). Furthermore, we evaluated lipid-related molecules correlated to the transdifferentiation process of LX-2, and 100 µM of silymarin demonstrated to control molecules associated with lipid metabolism such as FASN, MLYCD, ACSL4, CPTs, among others. In contrast, cellular incubation with 150 µM of silymarin increased the synthesis of long-chain fatty acids and triglycerides, regarding the higher presence of DMSO (v/v) in the solvent. In conclusion, silymarin acts as a hepatoprotective agent and modulates the pro-fibrogenic stimuli of LX-2 cells, whose effects depend on stress levels in the cellular environment.
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Affiliation(s)
- Caio Mateus Silva
- Laboratório de Biologia Molecular, Departamento de Biologia Geral e Aplicada, Instituto de Biociências, Universidade Estadual Paulista, UNESP, Rio Claro, SP, 13506-900, Brazil
| | - Gustavo Duarte Ferrari
- Departamento de Bioquímica E Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, USP, Ribeirão Preto, SP, Brazil
| | - Luciane Carla Alberici
- Departamento de Física E Química, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, USP, Ribeirão Preto, SP, Brazil
| | - Osmar Malaspina
- Centro de Estudos de Insetos Sociais, Instituto de Biociências, Universidade Estadual Paulista, UNESP, Rio Claro, SP, Brazil
| | - Karen C M Moraes
- Laboratório de Biologia Molecular, Departamento de Biologia Geral e Aplicada, Instituto de Biociências, Universidade Estadual Paulista, UNESP, Rio Claro, SP, 13506-900, Brazil.
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Adeli A, Zendehdel M, Babapour V, Panahi N. Interaction between leptin and glutamatergic system on food intake regulation in neonatal chicken: role of NMDA and AMPA receptors. Int J Neurosci 2020; 130:713-721. [PMID: 31813315 DOI: 10.1080/00207454.2019.1702983] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Objective: The aim of the current study was to determine the possible interaction of the central leptin and Glutamatergic systems on feeding behavior in neonatal 3-hours food deprived (FD3) broilers chickens.Methods: In experiment 1, FD3 chicken received intracerebroventricular (ICV) injection of control solution (group i) and 2.5, 5 and 10 µg of Leptin (groups ii-iv). In experiment 2, FD3 chicken were ICV injected with (group i) control solution and groups ii-iv with 2.5, 5 and 10 nmol of AG-490 (JAK2 antagonist). In experiment 3, injections were (i) control solution, (ii) Leptin (10 µg), (iii) AG-490 (2.5 nmol) and (iv) Leptin + AG-490. In experiment 4, broiler chickens were ICV injected with (i) control solution, (ii) Leptin (10 µg), (iii) MK-801 (NMDA glutamate receptors antagonist; 15 nmol) and (iv) Leptin + MK-801. Experiments 5-9 were similar to experiment 1, except chicken were ICV injected with CNQX (AMPA receptor antagonist, 390 nmol), UBP-302 (Kainate receptor antagonist, 390 nmol), AIDA (mGluR1 antagonist, 2 nmol), LY341495 (mGluR2 antagonist, 150 nmol) and UBP1112 (mGluR3 antagonist, 2 nmol) instead of MK-801. Then, food intake was measured until 120 min after injection.Results: ICV injection of leptin (2.5, 5 and 10 µg) significantly decreased food intake in a dose dependent manner (p < 0.05). Also, ICV injection of the JAK2 antagonist (2.5, 5 and 10 nmol) had hyperphagic effect in chicken (p < 0.05). Co-administration of leptin + AG-490, partially decreased leptin-induced hypophagia in broiler chicken (p < 0.05). In addition, co-injection of leptin + MK-801 significalty inhibited leptin-induced hypophagia in neonatal chicken (p < 0.05). Also, co-administration of leptin + CNQX partially attenuated hypophagic effect of leptin in chicken (p < 0.05).Conclusion: The results of present study suggest that leptin has hypophagic effect in neonatal chicken and this effect is probably mediated via NMDA and AMPA glutamatergic receptors.
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Affiliation(s)
- Amin Adeli
- Department of Basic Sciences, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Morteza Zendehdel
- Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Vahab Babapour
- Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Negar Panahi
- Department of Basic Sciences, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Bektas N, Şenel B, Yenilmez E, Özatik O, Arslan R. Evaluation of wound healing effect of chitosan-based gel formulation containing vitexin. Saudi Pharm J 2019; 28:87-94. [PMID: 31933527 PMCID: PMC6950974 DOI: 10.1016/j.jsps.2019.11.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 11/02/2019] [Indexed: 12/22/2022] Open
Abstract
Acute or chronic wounds are one of the most common health problems worldwide and medicinal drugs or traditional remedies are often used in wound healing. Further studies regarding wound treatment are rapidly continuing. Vitexin is a phenolic compound, which is found in many medicinal plants, has different pharmacological effects such as anti-inflammatory, analgesic and antioxidant. In the present study, it is aimed to investigate the wound healing effect of formulation prepared as chitosan-based gel with vitexin in vivo and in vitro. Cytotoxicity and wound healing assays were used for in vitro and excisional wound model is used for in vivo studies. Extracted tissues from wound area were histologically examined. Wound healing process was monitored on 7, 14 and 21st days. When wound construction was evaluated, chitosan-based gel formulation containing vitexin demonstrated significant effect compared to control group. Histological examinations demonstrated that skin regeneration was promoted by vitexin formulation. Significant cell proliferation was observed with vitexin/chitosan dispersion in the wound healing assay performed with NIH 3T3 and HaCaT cells. In conclusion, our test substance chitosan-based gel formulation containing vitexin significantly accelerated wound healing both in vivo and in vitro.
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Affiliation(s)
- Nurcan Bektas
- Anadolu University, Faculty of Pharmacy, Department of Pharmacology, 26470 Eskisehir, Turkey
| | - Behiye Şenel
- Anadolu University, Faculty of Pharmacy, Department of Pharmaceutical Biotechnology, 26470 Eskisehir, Turkey
| | - Evrim Yenilmez
- Anadolu University, Faculty of Pharmacy, Department of Pharmaceutical Technology, 26470 Eskisehir, Turkey
| | - Orhan Özatik
- Kütahya Health Sciences University, Faculty of Medicine, Department of Histology and Embryology, Kütahya, Turkey
| | - Rana Arslan
- Anadolu University, Faculty of Pharmacy, Department of Pharmacology, 26470 Eskisehir, Turkey
- Corresponding author.
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Effect of Copper Ion Concentration on Bacteria and Cells. MATERIALS 2019; 12:ma12223798. [PMID: 31752323 PMCID: PMC6888263 DOI: 10.3390/ma12223798] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/10/2019] [Accepted: 11/12/2019] [Indexed: 12/27/2022]
Abstract
In the oral cavity, dental implants—most often made of commercially pure titanium—come in contact with bacteria, and antibacterial management has been researched extensively to improve patient care. With antibiotic resistance becoming increasingly prevalent, this has resulted in copper being investigated as an antibacterial element in alloys. In this study, the objective was to investigate the copper ion concentrations at which cyto-toxicity is avoided while bacterial inhibition is ensured, by comparing Cu ion effects on selected eukaryotes and prokaryotes. To determine relevant copper ion concentrations, ion release rates from copper and a 10 wt. % Cu Ti-alloy were investigated. Survival studies were performed on MC3T3 cells and Staphylococcus epidermidis bacteria, after exposure to Cu ions concentrations ranging from 9 × 10−3 to 9 × 10−12 g/mL. Cell survival increased from <10% to >90% after 24 h of exposure, by reducing Cu concentrations from 9 × 10−5 to 9 × 10−6 g/mL. Survival of bacteria also increased in the same range of Cu concentrations. The maximum bacteria growth was found at 9 × 10−7 g/mL, probably due to stress response. In conclusion, the minimum inhibitory concentrations of Cu ions for these prokaryotes and eukaryotes were found in the range from 9 × 10−5 to 9 × 10−6 g/mL. Interestingly, the Cu ion concentration correlating to the release rate of the 10 wt. % Cu alloy (9 × 10−8 g/mL) did not kill the bacteria, although this alloy has previously been found to be antibacterial. Further studies should investigate in depth the bacteria-killing mechanism of copper.
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Mironov AV, Mironova OA, Syachina MA, Popov VK. 3D printing of polylactic-co-glycolic acid fiber scaffolds using an antisolvent phase separation process. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121845] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Duse L, Agel MR, Pinnapireddy SR, Schäfer J, Selo MA, Ehrhardt C, Bakowsky U. Photodynamic Therapy of Ovarian Carcinoma Cells with Curcumin-Loaded Biodegradable Polymeric Nanoparticles. Pharmaceutics 2019; 11:pharmaceutics11060282. [PMID: 31208085 PMCID: PMC6630253 DOI: 10.3390/pharmaceutics11060282] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 01/10/2023] Open
Abstract
Accumulation of photosensitisers in photodynamic therapy in healthy tissues is often the cause of unwanted side effects. Using nanoparticles, improved bioavailability and site-specific drug uptake can be achieved. In this study, curcumin, a natural product with anticancer properties, albeit with poor aqueous solubility, was encapsulated in biodegradable polymeric poly(lactic-co-glycolic acid) (PLGA) nanoparticles (CUR-NP). Dynamic light scattering, laser Doppler anemometry and atomic force microscopy were used to characterise the formulations. Using haemolysis, serum stability and activated partial thromboplastin time tests, the biocompatibility of CUR-NP was assessed. Particle uptake and accumulation were determined by confocal laser scanning microscopy. Therapeutic efficacy of the formulation was tested in SK-OV-3 human ovarian adenocarcinoma cells post low level LED irradiation by determining the generation of reactive oxygen species and cytotoxicity. Pharmacologic inhibitors of cellular uptake pathways were used to identify the particle uptake mechanism. CUR-NP exhibited better physicochemical properties such as stability in the presence of light and improved serum stability compared to free curcumin. In addition, the novel nanoformulation facilitated the use of higher amounts of curcumin and showed strong apoptotic effects on tumour cells.
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Affiliation(s)
- Lili Duse
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany.
| | - Michael Rene Agel
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany.
| | - Shashank Reddy Pinnapireddy
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany.
| | - Jens Schäfer
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany.
| | - Mohammed A Selo
- School of Pharmacy and Pharmaceutical Sciences and Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
- Faculty of Pharmacy, University of Kufa, 31001 Kufa, Iraq.
| | - Carsten Ehrhardt
- School of Pharmacy and Pharmaceutical Sciences and Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland.
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany.
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Zhou J, Sun J. A Revolution in Reprogramming: Small Molecules. Curr Mol Med 2019; 19:77-90. [DOI: 10.2174/1566524019666190325113945] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 12/07/2018] [Accepted: 02/18/2019] [Indexed: 02/08/2023]
Abstract
Transplantation of reprogrammed cells from accessible sources and in vivo
reprogramming are potential therapies for regenerative medicine. During the last
decade, genetic approaches, which mostly involved transcription factors and
microRNAs, have been shown to affect cell fates. However, their potential
carcinogenicity and other unexpected effects limit their translation into clinical
applications. Recently, with the power of modern biology-oriented design and synthetic
chemistry, as well as high-throughput screening technology, small molecules have been
shown to enhance reprogramming efficiency, replace genetic factors, and help elucidate
the molecular mechanisms underlying cellular plasticity and degenerative diseases. As a
non-viral and non-integrating approach, small molecules not only show revolutionary
capacities in generating desired exogenous cell types but also have potential as drugs
that can restore tissues through repairing or reprogramming endogenous cells. Here, we
focus on the recent progress made to use small molecules in cell reprogramming along
with some related mechanisms to elucidate these issues.
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Affiliation(s)
- Jin Zhou
- Shanghai Children's Medical Center, Shanghai Jiaotong University, School of Medicine, Shanghai, China
| | - Jie Sun
- Shanghai Children's Medical Center, Shanghai Jiaotong University, School of Medicine, Shanghai, China
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Huang L, Niu Y, Li R, Liu H, Wang Y, Xu G, Li Y, Xu Y. VO x Quantum Dots with Multienzyme-Mimic Activities and the Application in Constructing a Three-Dimensional (3D) Coordinate System for Accurate Discrimination of the Hydrogen Peroxide over a Broad Concentration Range. Anal Chem 2019; 91:5753-5761. [PMID: 30968692 DOI: 10.1021/acs.analchem.8b05923] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The construction of efficient nanozyme with multienzyme activities in a simple way is vital for the wide biological and chemical applications. Generally, the mimic enzyme activities depend on their sizes, surface states, and materials types. Quantum dots (QDs), one type of zero-dimensional nanomaterials, are much appealing due to their abundant catalytically active surface deficiency. The vanadium oxide (VO x) is one special transition metal oxides possessing different valence states. Inspired by these views, we synthesized VO xQDs herein via a one-pot top-down ethanol-thermal method using bulk VO2 as the precursor. The VO xQDs showed not only oxidase- and peroxidase-like activities in ethanol as the main background solution (ethanol-BGS), but also exhibited additional superoxide dismutase mimetic activity in phosphate buffer solution. Furthermore, the TMB-VO xQDs system in the ethanol-BGS produced three distinct colors in the presence of hydrogen peroxide (H2O2) at three different concentration gradients (10-90 μM, 0.1-10 mM, and 20-100 mM). Accordingly, we constructed a three-dimensional (3D) coordinate system (3D-CS) by using the three variables: the initial velocities, the maximum absorption values and the visual colors of the enzymatic reaction system. As a result, the rapid detection of H2O2 can be achieved while effectively avoiding the faked appearance due to the inhibition effects to the enzymatic system at too high H2O2 concentration. The applicability of the VO xQDs based 3D-CS was further proved via the facile and accurate H2O2 assays in three different practical samples.
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Affiliation(s)
- Lei Huang
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
| | - Yusheng Niu
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China.,School of Tourism and Geography Science , Qingdao University , Qingdao 266071 , China
| | - Ronggui Li
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
| | - Haozhong Liu
- Department of Urology, Key Laboratory of Urinary System Diseases , the Affiliated Hospital of Qingdao University , Qingdao 266003 , P. R. China
| | - Yao Wang
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
| | - Gengfang Xu
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
| | - Yang Li
- College of Materials Science and Engineering , Qingdao University , Qingdao 266071 , P. R. China
| | - Yuanhong Xu
- College of Life Science , Qingdao University , Qingdao 266071 , P. R. China
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Zhang Y, Bowen CR, Deville S. Ice-templated poly(vinylidene fluoride) ferroelectrets. SOFT MATTER 2019; 15:825-832. [PMID: 30566171 DOI: 10.1039/c8sm02160k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ferroelectrets are piezoelectrically-active polymer foams that can convert externally applied loads into electric charge for sensor or energy harvesting applications. Existing processing routes used to create pores of the desired geometry and degree of alignment appropriate for ferroelectrets are based on complex mechanical stretching and chemical dissolution steps. In this work, we present the first demonstration of the use of freeze casting as a cost effective and environmentally friendly approach to produce polymeric ferroelectrets. The pore morphology, phase analysis, relative permittivity and direct piezoelectric charge coefficient (d33) of porous poly(vinylidene fluoride) (PVDF) based ferroelectrets with porosity volume fractions ranging from 24% to 78% were analysed. The long-range alignment of pore channels produced during directional freezing is shown to be beneficial in forming a highly polarised structure and high d33 ∼ 264 pC N-1 after breakdown of air within the pore channels during corona poling. This new approach opens a way to create tailored pore structures and voids in ferroelectret materials for transducer applications related to sensors and vibration energy harvesting.
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Affiliation(s)
- Yan Zhang
- Department of Mechanical Engineering, University of Bath, Bath, UK.
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Abstract
Present bioprinting techniques lack the methodology to print with bioactive materials that retain their biological functionalities. This constraint is due to the fact that extrusion-based printing of synthetic polymers is commonly performed at very high temperatures in order to achieve desired mechanical properties and printing resolutions. Consequently, current methodology prevents printing scaffolds embedded with bioactive molecules, such as growth factors. With the wide use of mesenchymal stem cells (MSCs) in regenerative medicine research, the integration of growth factors into 3D printed scaffolds is critical because it can allow for inducible MSC differentiation. We have successfully incorporated growth factors into extrusion printed poly (lactic-co-glycolic acid) (PLGA) scaffolds by introducing dimethyl sulfoxide (DMSO) for low temperature printing. Mechanical testing results demonstrated significantly different compressive and tensile properties for PLGA scaffold printed with or without DMSO. In particular, the PLGA-DMSO scaffold displayed a highly stretchable feature compared to the regular PLGA scaffold. The cellular response of growth factor introduction was evaluated in vitro using human mesenchymal stem cells (hMSCs). By evaporating the DMSO after printing, we ensured that there was no cytotoxic effect on seeded hMSCs. The addition of lineage specific growth factors led to increased expression of corresponding genetic markers for chondrogenesis, osteogenesis, and adipogenesis. We concluded that the use of DMSO for 3D printed scaffold fabrication with bioactive items is a revolutionary methodology in advancing regenerative medicine. The incorporation of bioactive molecules opens pathways to more therapeutic uses for 3D printing in treating damaged or deteriorating native tissue.
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dos Santos AF, Pacheco JM, Silva PAO, Bedran-Russo AK, Rezende TMB, Pereira PNR, Ribeiro APD. Direct and transdentinal biostimulatory effects of grape seed extract rich in proanthocyanidin on pulp cells. Int Endod J 2018; 52:424-438. [DOI: 10.1111/iej.13019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 09/19/2018] [Indexed: 12/29/2022]
Affiliation(s)
- A. F. dos Santos
- Department of Dentistry; Faculty of Health Sciences; University of Brasília; Brasilia Brazil
| | - J. M. Pacheco
- Department of Dentistry; Faculty of Health Sciences; University of Brasília; Brasilia Brazil
| | - P. A. O. Silva
- Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia; Universidade Católica de Brasília; Brasilia Brazil
| | - A. K. Bedran-Russo
- Department of Restorative Dentistry; UIC College of Dentistry; Chicago IL USA
| | - T. M. B. Rezende
- Programa de Pós-Graduação em Ciências Genômicas e Biotecnologia; Universidade Católica de Brasília; Brasilia Brazil
| | - P. N. R. Pereira
- Department of Restorative Dental Sciences; College of Dentistry; University of Florida; Gainesville FL USA
| | - A. P. D. Ribeiro
- Department of Restorative Dental Sciences; College of Dentistry; University of Florida; Gainesville FL USA
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Capasso Palmiero U, Morosi L, Bello E, Ponzo M, Frapolli R, Matteo C, Ferrari M, Zucchetti M, Minoli L, De Maglie M, Romanelli P, Morbidelli M, D'Incalci M, Moscatelli D. Readily prepared biodegradable nanoparticles to formulate poorly water soluble drugs improving their pharmacological properties: The example of trabectedin. J Control Release 2018. [DOI: 10.1016/j.jconrel.2018.03.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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39
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Sauro S, Babbar A, Gharibi B, Feitosa VP, Carvalho RM, Azevedo Rodrigues LK, Banerjee A, Watson T. Cellular differentiation, bioactive and mechanical properties of experimental light-curing pulp protection materials. Dent Mater 2018; 34:868-878. [PMID: 29555096 DOI: 10.1016/j.dental.2018.02.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/31/2017] [Accepted: 02/27/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Materials for pulp protection should have therapeutic properties in order to stimulate remineralization and pulp reparative processes. The aim of this study was to evaluate the mechanical properties, biocompatibility, cell differentiation and bioactivity of experimental light-curable resin-based materials containing bioactive micro-fillers. METHODS Four calcium-phosphosilicate micro-fillers were prepared and incorporated into a resin blend: 1) Bioglass 45S5 (BAG); 2) zinc-doped bioglass (BAG-Zn); 3) βTCP-modified calcium silicate (β-CS); 4) zinc-doped β-CS (β-CS-Zn). These experimental resins were tested for flexural strength (FS) and fracture toughness (FT) after 24h and 30-day storage in simulated body fluid (SBF). Cytotoxicity was evaluated using MTT assay, while bioactivity was evaluated using mineralization and gene expression assays (Runx-2 & ALP). RESULTS The lowest FS and FT at 24h was attained with β-CS resin, while all the other tested materials exhibited a decrease in FS after prolonged storage in SBF. β-CS-Zn maintained a stable FT after 30-day SBF aging. Incorporation of bioactive micro-fillers had no negative effect on the biocompatibility of the experimental materials tested in this study. The inclusion of zinc-doped fillers significantly increased the cellular remineralization potential and expression of the osteogenic genes Runx2 and ALP (p<0.05). SIGNIFICANCE The innovative materials tested in this study, in particular those containing β-CS-Zn and BAG-Zn may promote cell differentiation and mineralization. Thus, these materials might represent suitable therapeutic pulp protection materials for minimally invasive and atraumatic restorative treatments.
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Affiliation(s)
- Salvatore Sauro
- Dental Biomaterials and Minimally Invasive Dentistry, Departmento de Odontologia, Facultad de Ciencias de la Salud, CEU-Cardenal Herrera University, Alfara del Patriarca, 46115 Valencia, Spain; Tissue Engineering and Biophotonics Research Division, King's College London Dental Institute, King's Health Partners, London, UK.
| | - Ashvin Babbar
- Tissue Engineering and Biophotonics Research Division, King's College London Dental Institute, King's Health Partners, London, UK
| | - Borzo Gharibi
- Tissue Engineering and Biophotonics Research Division, King's College London Dental Institute, King's Health Partners, London, UK
| | - Victor Pinheiro Feitosa
- School of Dentistry, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil; Paulo Picanço School of Dentistry, Fortaleza, Brazil
| | - Ricardo Marins Carvalho
- Department of Oral Biological and Medical Sciences, Division of Biomaterials, Faculty of Dentistry, The University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | | | - Avijit Banerjee
- Tissue Engineering and Biophotonics Research Division, King's College London Dental Institute, King's Health Partners, London, UK; Department of Conservative & MI Dentistry, King's College London Dental Institute, King's Health Partners, London, UK
| | - Timothy Watson
- Tissue Engineering and Biophotonics Research Division, King's College London Dental Institute, King's Health Partners, London, UK; Department of Conservative & MI Dentistry, King's College London Dental Institute, King's Health Partners, London, UK
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Capasso Palmiero U, Maraldi M, Manfredini N, Moscatelli D. Zwitterionic Polyester-Based Nanoparticles with Tunable Size, Polymer Molecular Weight, and Degradation Time. Biomacromolecules 2018. [PMID: 29522318 DOI: 10.1021/acs.biomac.8b00127] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Biodegradable polymer nanoparticles are an important class of materials used in several applications for their unique characteristics. In particular, the ones stabilized by zwitterionic materials are gaining increased interest in medicine as alternative to the more common ones based on poly(ethylene glycol) thanks to their superior stability and ability to avoid both the accelerated blood clearance and allergic reactions. In this work, a novel class of zwitterionic based NPs has been produced, and a method to independently control the nanoparticle size, degradation time, and polymer molecular weight has been developed and demonstrated. This has been possible by the synthesis and the fine-tuning of zwitterionic amphiphilic block copolymers obtained via the combination of ring-opening polymerization and reversible addition-fragmentation chain transfer polymerization. The final results showed that when two block copolymers contain the same number of caprolactone units, the one with longer oligoester lateral chains degrades faster. This phenomenon is in sharp contrast with the one seen so far for the common linear polyester systems where longer chains result in longer degradation times, and it can be used to better tailor the degradation behavior of the nanoparticles.
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Affiliation(s)
- Umberto Capasso Palmiero
- Department of Chemistry, Materials and Chemical Engineering , Politecnico di Milano , Via Mancinelli 7 , 20131 Milano , Italy.,Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering , ETH Zurich , 8092 Zurich , Switzerland
| | - Matteo Maraldi
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering , ETH Zurich , 8092 Zurich , Switzerland
| | - Nicolò Manfredini
- Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering , ETH Zurich , 8092 Zurich , Switzerland
| | - Davide Moscatelli
- Department of Chemistry, Materials and Chemical Engineering , Politecnico di Milano , Via Mancinelli 7 , 20131 Milano , Italy
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Efficient Bioimaging with Diaminodicyanoquinodimethanes: Selective Imaging of Epidermal and Stomatal Cells and Insight into the Molecular Level Interactions. Sci Rep 2017; 7:10583. [PMID: 28878252 PMCID: PMC5587692 DOI: 10.1038/s41598-017-11293-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 08/21/2017] [Indexed: 11/30/2022] Open
Abstract
The enhanced fluorescence emission of diaminodicyanoquinodimethanes (DADQs) in rigid and aggregated states holds great promise for bioimaging applications. This is demonstrated through their efficient application in epidermal and stomatal imaging with selective staining of cell walls and nuclei. Major advantages include the small quantities (a few nmols) of the fluorophore required, choice of DADQs soluble in water and organic solvents, and quick staining of the specimen in buffer-free state and in buffer medium. The molecular level interactions that enable staining are unraveled through isothermal calorimetry, infra-red spectroscopy and microscopy with energy dispersive X-ray spectroscopy analysis. It is proposed that DADQs with ionic or H-bonding functionalities bind to the polygalacturonic acid moieties in the epidermal layer; the former can bind also to nucleic acid polyanions. Fluorescence experiments explain the emission enhancement that enables the efficient imaging. DADQs are easy to synthesize, non-cytotoxic, and thermally, chemically and photo-stable, requiring no special storage conditions; preliminary experiments point to their potential utility in imaging different classes of cells.
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Mehtälä P, Pashley D, Tjäderhane L. Effect of dimethyl sulfoxide on dentin collagen. Dent Mater 2017; 33:915-922. [DOI: 10.1016/j.dental.2017.04.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 02/16/2017] [Accepted: 04/25/2017] [Indexed: 11/28/2022]
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Ruiz Lopez AM, Roche SL, Wyse Jackson AC, Moloney JN, Byrne AM, Cotter TG. Pro-survival redox signalling in progesterone-mediated retinal neuroprotection. Eur J Neurosci 2017; 46:1663-1672. [PMID: 28493650 DOI: 10.1111/ejn.13604] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/04/2017] [Accepted: 05/04/2017] [Indexed: 01/05/2023]
Abstract
Retinitis pigmentosa (RP) is a group of hereditary retinal diseases, characterised by photoreceptor cell loss. Despite a substantial understanding of the mechanisms leading to cell death, an effective therapeutic strategy is sought. Our laboratory has previously demonstrated the neuroprotective properties of Norgestrel, a progesterone analogue, in the degenerating retina, mediated in part by the neurotrophic factor basic fibroblast growth factor (bFGF). In other retinal studies, we have also presented a pro-survival role for reactive oxygen species (ROS), downstream of bFGF. Thus, we hypothesized that Norgestrel utilises bFGF-driven ROS production to promote photoreceptor survival. Using the 661W photoreceptor-like cell line, we now show that Norgestrel, working through progesterone receptor membrane complex 1 (PGRMC1); generates an early burst of pro-survival bFGF-induced ROS. Using the rd10 mouse model of RP, we confirm that Norgestrel induces a similar early pro-survival increase in retinal ROS. Norgestrel-driven protection in the rd10 retina was attenuated in the presence of antioxidants. This study therefore presents an essential role for ROS signalling in Norgestrel-mediated neuroprotection in vitro and demonstrates that Norgestrel employs a similar pro-survival mechanism in the degenerating retina.
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Affiliation(s)
- Ana M Ruiz Lopez
- Cell Development and Disease Laboratory, Biochemistry Department, Biosciences Institute, University College Cork, Cork, Ireland
| | - Sarah L Roche
- Cell Development and Disease Laboratory, Biochemistry Department, Biosciences Institute, University College Cork, Cork, Ireland
| | - Alice C Wyse Jackson
- Cell Development and Disease Laboratory, Biochemistry Department, Biosciences Institute, University College Cork, Cork, Ireland
| | - Jennifer N Moloney
- Cell Development and Disease Laboratory, Biochemistry Department, Biosciences Institute, University College Cork, Cork, Ireland
| | - Ashleigh M Byrne
- Cell Development and Disease Laboratory, Biochemistry Department, Biosciences Institute, University College Cork, Cork, Ireland
| | - Thomas G Cotter
- Cell Development and Disease Laboratory, Biochemistry Department, Biosciences Institute, University College Cork, Cork, Ireland
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Portland cement induces human periodontal ligament cells to differentiate by upregulating miR-146a. J Formos Med Assoc 2017; 117:308-315. [PMID: 28528141 DOI: 10.1016/j.jfma.2017.04.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 04/21/2017] [Accepted: 04/25/2017] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND/PURPOSE Bioaggregates such as Portland cement (PC) can be an economical alternative for mineral trioxide aggregate (MTA) with additional benefit of less discoloration. MTA has been known to induce differentiations of several dental cells. MicroRNAs are important regulators of biological processes, including differentiation, physiologic homeostasis, and disease progression. This study is to explore how PC enhances the differentiation of periodontal ligament (PDL) cells in microRNAs level. METHODS PDL cells were cultured in a regular PC- or MTA-conditioned medium or an osteoinduction medium (OIM). Alizarin red staining was used to evaluate the extent of mineralization. Transfection of microRNA mimics induced exogenous miR-31 and miR-146a expression. The expression of microRNAs and differentiation markers was assayed using reverse-transcriptase polymerase chain reaction. RESULTS PC enhanced the mineralization of PDL cells in a dose-dependent manner in the OIM. Exogenous miR-31 and miR-146a expression upregulated alkaline phosphatase (ALP), bone morphogenic protein (BMP), and dentin matrix protein 1 (DMP1) expression. However, miR-31 and miR-146a modulates cementum protein 1 (CEMP1) expression in different ways. PC also enhanced ALP and BMP but attenuated CEMP1 in the OIM. Although the OIM or PC treatment upregulated miR-21, miR-29b, and miR-146a, only miR-146a was able to be induced by PC in combination with OIM. CONCLUSION This study demonstrated that PC enhances the differentiation of PDL cells, especially osteogenic through miR-146a upregulation. In order to control the ankylosis after regenerative endodontics with the usage of bioaggregates, further investigations to explore these differentiation mechanisms in the miRNA level may be needed.
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Hyun SW, Kim BR, Hyun SA, Seo JW. The assessment of electrophysiological activity in human-induced pluripotent stem cell-derived cardiomyocytes exposed to dimethyl sulfoxide and ethanol by manual patch clamp and multi-electrode array system. J Pharmacol Toxicol Methods 2017; 87:93-98. [PMID: 28377112 DOI: 10.1016/j.vascn.2017.03.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 03/14/2017] [Accepted: 03/31/2017] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Recently, electrophysiological activity has been effectively measured in human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) to predict drug-induced arrhythmia. Dimethyl sulfoxide (DMSO) and ethanol have been used as diluting agents in many experiments. However, the maximum DMSO and ethanol concentrations that can be effectively used in the measurement of electrophysiological parameters in hiPSC-CMs-based patch clamp and multi-electrode array (MEA) have not been fully elucidated. METHODS We investigated the effects of varying concentrations of DMSO and ethanol used as diluting agents on several electrophysiological parameters in hiPSC-CMs using patch clamp and MEA. RESULTS Both DMSO and ethanol at concentrations>1% in external solution resulted in osmolality >400mOsmol/kg, but pH was not affected by either agent. Neither DMSO nor ethanol led to cell death at the concentrations examined. However, resting membrane potential, action potential amplitude, action potential duration at 90% and 40%, and corrected field potential duration were decreased significantly at 1% ethanol concentration. DMSO at 1% also significantly decreased the sodium spike amplitude. In addition, the waveform of action potential and field potential was recorded as irregular at 3% concentrations of both DMSO and ethanol. Concentrations of up to 0.3% of either agent did not affect osmolality, pH, cell death, or electrophysiological parameters in hiPSC-CMs. DISCUSSION Our findings suggest that 0.3% is the maximum concentration at which DMSO or ethanol should be used for dilution purposes in hiPSC-CMs-based patch clamp and MEA.
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Affiliation(s)
- Soo-Wang Hyun
- Research Group for Safety Pharmacology, Korea Institute of Toxicology, KRICT, 34114 Daejeon, Republic of Korea.
| | - Bo-Ram Kim
- Research Group for Safety Pharmacology, Korea Institute of Toxicology, KRICT, 34114 Daejeon, Republic of Korea.
| | - Sung-Ae Hyun
- Research Group for Safety Pharmacology, Korea Institute of Toxicology, KRICT, 34114 Daejeon, Republic of Korea.
| | - Joung-Wook Seo
- Research Group for Safety Pharmacology, Korea Institute of Toxicology, KRICT, 34114 Daejeon, Republic of Korea.
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Sponchioni M, Morosi L, Lupi M, Capasso Palmiero U. Poly(HPMA)-based copolymers with biodegradable side chains able to self assemble into nanoparticles. RSC Adv 2017. [DOI: 10.1039/c7ra11179g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biocompatible PCL-based nanoparticles able to degrade into completely water soluble poly(HPMA) chains are produced via the inverse macromonomer method.
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Affiliation(s)
- Mattia Sponchioni
- Department of Chemistry
- Materials and Chemical Engineering “Giulio Natta”
- Politecnico di Milano
- 20131 Milano
- Italy
| | - Lavinia Morosi
- Department of Oncology
- IRCCS
- Istituto di Ricerche Farmacologiche Mario Negri
- 20156 Milano
- Italy
| | - Monica Lupi
- Department of Oncology
- IRCCS
- Istituto di Ricerche Farmacologiche Mario Negri
- 20156 Milano
- Italy
| | - Umberto Capasso Palmiero
- Department of Chemistry
- Materials and Chemical Engineering “Giulio Natta”
- Politecnico di Milano
- 20131 Milano
- Italy
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Hajmousa G, Vogelaar P, Brouwer LA, van der Graaf AC, Henning RH, Krenning G. The 6-chromanol derivate SUL-109 enables prolonged hypothermic storage of adipose tissue-derived stem cells. Biomaterials 2016; 119:43-52. [PMID: 28006657 DOI: 10.1016/j.biomaterials.2016.12.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 12/07/2016] [Indexed: 02/09/2023]
Abstract
Encouraging advances in cell therapy research with adipose derived stem cells (ASC) require an effective short-term preservation method that provides time for quality control and transport of cells from their manufacturing facility to their clinical destination. Hypothermic storage of cells in their specific growth media offers an alternative and simple preservation method to liquid nitrogen cryopreservation or commercial preservation fluids for short-term storage and transport. However, accumulation of cell damage during hypothermia may result in cell injury and death upon rewarming through the production of excess reactive oxygen species (ROS). Here, the ability of the cell culture medium additive SUL-109, a modified 6-chromanol, to protect ASC from hypothermia and rewarming damage is examined. SUL-109 conveys protective effects against cold-induced damage in ASC as is observed by preservation of cell viability, adhesion properties and growth potential. SUL-109 does not reduce the multilineage differentiation capacity of ASC. SUL-109 conveys its protection against hypothermic damage by the preservation of the mitochondrial membrane potential through the activation of mitochondrial membrane complexes I and IV, and increases maximal oxygen consumption in FCCP uncoupled mitochondria. Consequently, SUL-109 alleviates mitochondrial ROS production and preserves ATP production. In summary, here we describe the generation of a single molecule cell preservation agent that protects ASC from hypothermic damage associated with short-term cell preservation that does not affect the differentiation capacity of ASC.
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Affiliation(s)
- Ghazaleh Hajmousa
- Cardiovascular Regenerative Medicine, Dept. Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713GZ, Groningen, The Netherlands
| | - Pieter Vogelaar
- Sulfateq B.V., Admiraal de Ruyterlaan 5, 9726GN, Groningen, The Netherlands
| | - Linda A Brouwer
- Cardiovascular Regenerative Medicine, Dept. Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713GZ, Groningen, The Netherlands
| | | | - Robert H Henning
- Dept. Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EB71), 9713GZ, Groningen, The Netherlands
| | - Guido Krenning
- Cardiovascular Regenerative Medicine, Dept. Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1 (EA11), 9713GZ, Groningen, The Netherlands; Sulfateq B.V., Admiraal de Ruyterlaan 5, 9726GN, Groningen, The Netherlands.
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Fu ZJ, Zhong XZ, Ma WH, Zhang WD, Shi CY. Lipophilic but not hydrophilic statin functionally inhibit volume-activated chloride channels by inhibiting NADPH oxidase in monocytes. Biochem Biophys Res Commun 2016; 481:117-124. [PMID: 27818195 DOI: 10.1016/j.bbrc.2016.11.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 11/02/2016] [Indexed: 11/27/2022]
Abstract
Volume-activated Cl- channels (VACCs) can be activated by hypotonic solutions and have been identified in many cell types. Here, we investigated the effects of different statins on VACCs in monocytes. Whole-cell patch clamp recordings demonstrated that a hypotonic solution induced 5-nitro-2- (3-phenylpropylamino) benzoic acid (NPPB)- and 4,4'-diisothiocyanatostilbene-2, 2'-disulfonic acid (DIDS)-sensitive VACC currents in human peripheral monocytes and RAW 264.7 cells. The VACC currents were inhibited by the lipophilic statin (simvastatin) but not by the hydrophilic simvastatin acid and pravastatin. A low-molecular-weight superoxide anion scavenger (tiron, 1 mM) and inhibitor of NADPH oxidase (DPI 10 μM) was able to abolish the VACC currents. A hypotonic solution increased the reactive oxygen species (ROS) detected by the fluorescence of dichlorodihydrofluorescein (DCF), which was abolished by tiron and DPI. NPPB, DIDS, and simvastatin but not pravastatin decreased the fluorescence of DCF. Simvastatin could not further decrease VACC currents when pretreated with tiron or DPI, whereas exogenous H2O2 (100 μM), increased the VACC currents and overcame the blockade of VACC currents by simvastatin. Functionally, hypotonic solution increased the TNF-α mRNA expression, which could be decreased by tiron, DPI, NPPB, DIDS and simvastatin but not pravastatin. However, simvastatin could not decrease the TNF-α expression further when pretreatment with tiron, DPI, NPPB or DIDS. We conclude that lipophilic (simvastatin) rather than hydrophilic statin inhibit VACCs and decrease hyposmolality induced inflammation in monocytes by inhibiting NADPH oxidase.
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Affiliation(s)
- Zhi-Jie Fu
- Department of Otorhinolaryngology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250014, China
| | - Xue-Zhen Zhong
- Department of Cardiovascular Disease, Jinan Central Hospital Affiliated to Shandong University, Shandong, Jinan 250013, China
| | - Wei-Hong Ma
- Department of Cardiology, The Second Hospital of Shandong University, Jinan 250033, China
| | - Wen-Dong Zhang
- Department of Pharmacy, QiLu Hospital, Shandong University, Jinan 250012, China.
| | - Cheng-Yao Shi
- Department of Pharmacy, QiLu Hospital, Shandong University, Jinan 250012, China
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Tsai T, Kao CY, Chou CL, Liu LC, Chou TC. Protective effect of magnolol-loaded polyketal microparticles on lipopolysaccharide-induced acute lung injury in rats. J Microencapsul 2016; 33:401-11. [PMID: 27357644 DOI: 10.1080/02652048.2016.1202344] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Magnolol has shown inhibitory effects on NO production and TNF-alpha production in lipopolysaccharide (LPS)-activated macrophages and LPS-induced acute lung injury; however, the poor solubility of magnolol has hindered its clinical success. In this study, magnolol-loaded microparticles were prepared via single emulsion method from a polyketal polymer, termed PK3. The particle sizes of magnolol-loaded PK3 microparticle is 3.73 ± 0.41 μm, and was suitable for phagocytosis by macrophages and pulmonary drug delivery. PK3 microparticles exhibited excellent biocompatibility both in vitro and in vivo. More importantly, intratracheal delivery of these magnolol-loaded microparticles significantly reduced the lung inflammatory responses at low dosage of magnolol (0.5 mg/kg), and have great clinical potential in treating acute lung injury.
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Affiliation(s)
- Tsuimin Tsai
- a Graduate Institute of Biomedical Materials and Tissue Engineering, Taipei Medical University , Taipei , Taiwan
| | - Chen-Yu Kao
- b Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology , Taipei , Taiwan ;,c Department of Biomedical Engineering , National Defense Medical Center , Taipei , Taiwan
| | - Chun-Liang Chou
- b Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology , Taipei , Taiwan
| | - Lu-Chun Liu
- b Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology , Taipei , Taiwan
| | - Tz-Chong Chou
- d Graduate Institute of Medical Sciences, National Defense Medical Center , Taipei , Taiwan ;,e Institute of Medical Sciences, Tzu Chi University , Hualien , Taiwan
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Li X, Wang YK, Song ZQ, Du ZQ, Yang CX. Dimethyl Sulfoxide Perturbs Cell Cycle Progression and Spindle Organization in Porcine Meiotic Oocytes. PLoS One 2016; 11:e0158074. [PMID: 27348312 PMCID: PMC4922549 DOI: 10.1371/journal.pone.0158074] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 06/09/2016] [Indexed: 12/01/2022] Open
Abstract
Meiotic maturation of mammalian oocytes is a precisely orchestrated and complex process. Dimethyl sulfoxide (DMSO), a widely used solvent, drug, and cryoprotectant, is capable of disturbing asymmetric cytokinesis of oocyte meiosis in mice. However, in pigs, DMSO’s effect on oocyte meiosis still remains unknown. We aimed to evaluate if DMSO treatment will affect porcine oocyte meiosis and the underlying molecular changes as well. Interestingly, we did not observe the formation of the large first polar body and symmetric division for porcine oocytes treated with DMSO, contrary to findings reported in mice. 3% DMSO treatment could inhibit cumulus expansion, increase nuclear abnormality, disturb spindle organization, decrease reactive oxygen species level, and elevate mitochondrial membrane potential of porcine oocytes. There was no effect on germinal vesicle breakdown rate regardless of DMSO concentration. 3% DMSO treatment did not affect expression of genes involved in spindle organization (Bub1 and Mad2) and apoptosis (NF-κB, Pten, Bcl2, Caspase3 and Caspase9), however, it significantly decreased expression levels of pluripotency genes (Oct4, Sox2 and Lin28) in mature oocytes. Therefore, we demonstrated that disturbed cumulus expansion, chromosome alignment, spindle organization and pluripotency gene expression could be responsible for DMSO-induced porcine oocyte meiotic arrest and the lower capacity of subsequent embryo development. Our results provide new insights on DMSO’s effect on porcine oocyte meiosis and raise safety concerns over DMSO’s usage on female reproduction in both farm animals and humans.
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Affiliation(s)
- Xuan Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Yan-Kui Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zhi-Qiang Song
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zhi-Qiang Du
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- * E-mail: (CXY); (ZQD)
| | - Cai-Xia Yang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- * E-mail: (CXY); (ZQD)
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