scholarly journals Cytotoxicity of amorphous calcium phosphate multifunctional composite coatings on titanium obtained by in situ anodization/anaphoretic deposition

2021 ◽  
pp. 24-24
Author(s):  
Marijana Pantovic-Pavlovic ◽  
Miroslav Pavlovic ◽  
Jovanka Kovacina ◽  
Boris Stanojevic ◽  
Jasmina Stevanovic ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Composite Coatings ◽  
Fibroblast Cell ◽  
Human Lung Fibroblast ◽  
Viable Cells ◽  
Lung Fibroblast Cell Line ◽  
Chitosan Lactate ◽  
Composite Samples

Cytotoxicity of amorphous calcium phosphate (ACP) and chitosan lactate (ChOL) multifunctional and hybrid composite coatings on MRC-5 human lung fibroblast cell line is elucidated. ACP/TiO2 and ACP/TiO2/ChOL are deposited onto Ti by novel in situ anodization/anaphoretic process at constant voltage. Cytotoxicity tests showed that there was no significant decrease in the survival of healthy MRC-5 cells eposed to composite samples without chitosan lactate, while there was an increase in the number of viable cells in the sample containing ChOL. The findings show that there is improved cell proliferation, differentiation and cell viability in the ChOL-containing sample, which makes ACP/TiO2/ChOL coating a good candidate for the applications in medicine and stomatology.

scholarly journals Antimicrobial Activity and DNA/BSA Binding Affinity of Polynuclear Silver(I) Complexes with 1,2-Bis(4-pyridyl)ethane/ethene as Bridging Ligands

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Sonja Ž. Đurić ◽  
Sandra Vojnovic ◽  
Tina P. Andrejević ◽  
Nevena Lj Stevanović ◽  
Nada D. Savić ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Therapeutic Potential ◽  
Fibroblast Cell ◽  
Bacterial Strains ◽  
Human Lung Fibroblast ◽  
Gram Negative ◽  
Minimal Inhibitory Concentrations ◽  
Lung Fibroblast Cell Line ◽  
Bacteria And Fungi

1,2-Bis(4-pyridyl)ethane (bpa) and 1,2-bis(4-pyridyl)ethene (bpe) were used for the synthesis of polynuclear silver(I) complexes, {[Ag(bpa)]NO3}n (1), {[Ag(bpa)2]CF3SO3.H2O}n (2) and {[Ag(bpe)]CF3SO3}n (3). In complexes 1–3, the corresponding nitrogen-containing heterocycle acts as a bridging ligand between two Ag(I) ions. In vitro antimicrobial activity of these complexes, along with the ligands used for their synthesis, was evaluated against the broad panel of Gram-positive and Gram-negative bacteria and fungi. The silver(I) complexes 1–3 showed selectivity towards Candida spp. and Gram-negative Escherichia coli in comparison to the other investigated bacterial strains, effectively inhibiting the growth of four different Candida species with minimal inhibitory concentrations (MICs) between 2.5 and 25 μg/mL and the growth of E. coli, with MIC value being 12.5 μg/mL. Importantly, complex 2 significantly reduced C. albicans filamentation, an essential process for its pathogenesis. Antiproliferative effect on the normal human lung fibroblast cell line MRC-5 was also evaluated with the aim of determining the therapeutic potential of the complexes 1–3. The interactions of these complexes with calf thymus DNA (ctDNA) and bovine serum albumin (BSA) were studied to evaluate their binding activities towards these biomolecules for possible insights on their mode of action.

In Situ Precipitation of Amorphous Calcium Phosphate and Ciprofloxacin Crystals during the Formation of Chitosan Hydrogels and Its Application for Drug Delivery Purposes

Langmuir ◽  
2012 ◽  
Vol 28 (45) ◽  
pp. 15937-15946 ◽  
Author(s):  
Stefania Nardecchia ◽  
María C. Gutiérrez ◽  
M. Concepción Serrano ◽  
Mariella Dentini ◽  
Andrea Barbetta ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Chitosan Hydrogels

scholarly journals Essential Oil Content of the Rhizome ofCurcuma purpurascensBl. (Temu Tis) and Its Antiproliferative Effect on Selected Human Carcinoma Cell Lines

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Sok-Lai Hong ◽  
Guan-Serm Lee ◽  
Syarifah Nur Syed Abdul Rahman ◽  
Omer Abdalla Ahmed Hamdi ◽  
Khalijah Awang ◽  
...  
Keyword(s):  
Human Lung ◽  
Carcinoma Cell ◽  
Fibroblast Cell ◽  
Lung Fibroblast ◽  
Fibroblast Cell Line ◽  
Human Carcinoma ◽  
Human Lung Fibroblast ◽  
Carcinoma Cell Lines ◽  
Lung Fibroblast Cell Line ◽  
Human Carcinoma Cell

Curcuma purpurascensBl., belonging to the Zingiberaceae family, is known astemu tisin Yogyakarta, Indonesia. In this study, the hydrodistilled dried ground rhizome oil was investigated for its chemical content and antiproliferative activity against selected human carcinoma cell lines (MCF7, Ca Ski, A549, HT29, and HCT116) and a normal human lung fibroblast cell line (MRC5). Results from GC-MS and GC-FID analysis of the rhizome oil oftemu tisshowed turmerone as the major component, followed by germacrone,ar-turmerone, germacrene-B, and curlone. The rhizome oil oftemu tisexhibited strong cytotoxicity against HT29 cells (IC50value of 4.9 ± 0.4 μg/mL), weak cytotoxicity against A549, Ca Ski, and HCT116 cells (with IC50values of 46.3 ± 0.7, 32.5 ± 1.1, and 35.0 ± 0.3 μg/mL, resp.), and no inhibitory effect against MCF7 cells. It exhibited mild cytotoxicity against a noncancerous human lung fibroblast cell line (MRC5), with an IC50value of 25.2 ± 2.7 μg/mL. This is the first report on the chemical composition of this rhizome’s oil and its selective antiproliferative effect on HT29. The obtained data provided a basis for further investigation of the mode of cell death.

scholarly journals Composite Drug Delivery System Based on Amorphous Calcium Phosphate–Chitosan: An Efficient Antimicrobial Platform for Extended Release of Tetracycline

Pharmaceutics ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1659
Author(s):  
Anita Ioana Visan ◽  
Carmen Ristoscu ◽  
Gianina Popescu-Pelin ◽  
Mihai Sopronyi ◽  
Consuela Elena Matei ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Extended Release ◽  
Composite Coatings ◽  
Burst Release ◽  
Large Area ◽  
Drug Release Profile ◽  
Composite Mixture ◽  
Drug Incorporation

One major warning emerging during the first worldwide combat against healthcare-associated infections concerns the key role of the surface in the storage and transfer of the virus. Our study is based on the laser coating of surfaces with an inorganic/organic composite mixture of amorphous calcium phosphate–chitosan–tetracycline that is able to fight against infectious agents, but also capable of preserving its activity for a prolonged time, up to several days. The extended release in simulated fluids of the composite mixture containing the drug (tetracycline) was demonstrated by mass loss and UV–VIS investigations. The drug release profile from our composite coatings proceeds via two stages: an initial burst release (during the first hours), followed by a slower evolution active for the next 72 h, and probably more. Optimized coatings strongly inhibit the growth of tested bacteria (Enterococcus faecalis and Escherichia coli), while the drug incorporation has no impact on the in vitro composite’s cytotoxicity, the coatings proving an excellent biocompatibility sustaining the normal development of MG63 bone-like cells. One may, therefore, consider that the proposed coatings’ composition can open the prospective of a new generation of antimicrobial coatings for implants, but also for nosocomial and other large area contamination prevention.

Fluoride and Casein Phosphopeptide-Amorphous Calcium Phosphate

2008 ◽  
Vol 87 (4) ◽  
pp. 344-348 ◽  
Author(s):  
E.C. Reynolds ◽  
F. Cai ◽  
N.J. Cochrane ◽  
P. Shen ◽  
G.D. Walker ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Double Blind ◽  
Water Slurry ◽  
Supragingival Plaque ◽  
Casein Phosphopeptide

Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) slows the progression of caries and remineralizes enamel subsurface lesions. The aim of this study was to determine the ability of CPP-ACP to increase the incorporation of fluoride into plaque and to promote enamel remineralization in situ. Randomized, double-blind, cross-over studies involved mouthrinses and dentifrices containing CPP-ACP and fluoride. The mouthrinses were used for 60 sec, three times/day for 5 days, and supragingival plaque was collected and analyzed for F. The dentifrices were rinsed as a water slurry for 60 sec four times/day for 14 days in an in situ model. The addition of 2% CPP-ACP to the 450-ppm-F mouthrinse significantly increased the incorporation of fluoride into plaque. The dentifrice containing 2% CPP-ACP produced a level of remineralization similar to that achieved with a dentifrice containing 2800 ppm F. The dentifrice containing 2% CPP-ACP plus 1100 ppm F was superior to all other formulations.

Histamine and Serotonin Stimulate Eotaxin Production by a Human Lung Fibroblast Cell Line

2002 ◽  
Vol 128 (Suppl. 1) ◽  
pp. 12-17 ◽  
Author(s):  
Etsuro Sato ◽  
Masayuki Haniuda ◽  
Hiroki Numanami ◽  
Toshiki Ushiyama ◽  
Akihiro Tsukadaira ◽  
...  
Keyword(s):  
Cell Line ◽  
Human Lung ◽  
Fibroblast Cell ◽  
Lung Fibroblast ◽  
Fibroblast Cell Line ◽  
Human Lung Fibroblast ◽  
Lung Fibroblast Cell Line
Sign in / Sign up

Export Citation Format

Share Document