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    Wyświetlanie 1-7 z 7
    Tytuł:
    Improved adhesion and growth of vascular smooth muscle cells on polycaprolactone nanofibrous membranes modified by amine-rich plasma
    Autorzy:
    Parizek, M.
    Blahova, L.
    Michlicek, M.
    Medalova, J.
    Cernochova, P.
    Bacakova, L.
    Zajickova, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/970894.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    muscle cells
    nanofibrous membranes
    polymers
    Źródło:
    Engineering of Biomaterials; 2018, 21, 148; 117
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Contribution of TiN/Ti/a-C:H multilayers architecture to biological and mechanical properties
    Autorzy:
    Major, L.
    Lackner, J. M.
    Kot, M.
    Janusz, M.
    Major, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/200944.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    microstructure
    smooth muscle cells adhesion
    cracking
    Opis:
    Complex microstructure analysis of TiN/Ti/a-C:H multilayer coatings, subjected to mechanical and biological tests, were performed by means of transmission electron microscopy (TEM) and confocal scanning laser microscopy (CSLM), respectively. Influence of interface numbers and phase ratios on coating properties was studied. Thin films were fabricated by a hybrid PLD technique (PLD supported by magnetron sputtering). The a-C:H phase was characterized by an amorphous structure, while TiN was built of columnar crystallites. Multilayer coatings contained sequentially deposited TiN and a-C:H layers with thin metallic Ti inter- layers deposited at each interface. Mechanisms of mechanical wear of analyzed systems were presented focusing on the cracking propagation revealed in the scratch test. Biological tests were done basing on smooth muscle cells adhesion to coating surfaces. An increase of TiN phase in the coating led to improvement of mechanical properties, while the carbon phase improved the biological behavior. Coatings comprising a higher rate of the carbon (a-C:H) revealed brittleness and were prone to delaminating. Optimal properties from the mechanical and biological point of view were stated for 8xTiN/Ti/a-C:H coating with 1:1 phase ratio (TiN to a-C:H).
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2014, 62, 3; 565-570
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Micro- and nanopatterned surfaces for guided adhesion, growth and phenotypic maturation of cells
    Autorzy:
    Bacakova, L.
    Filova, E.
    Grausova, L.
    Vandrovcova, M.
    Parizek, M.
    Novotna, K.
    Svorcik, V.
    Vacik, J.
    Rypacek, F.
    Kromka, A.
    Heitz, J.
    Shard, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/284586.pdf
    Data publikacji:
    2009
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    surface patterning
    microstructure
    nanostructure
    biofunctionalization
    endothelial cells
    vascular smooth muscle cells
    bone cells
    Opis:
    Micropatterned surfaces were created by UV light-irradiation of polytetrafluoroethylene through a metallic mask, by successive plasma polymerization of acrylic acid and 1,7-octadiene, or by creation of prominences and grooves by deposition of fullerenes C60 through a metallic mask. All these surface types were capable of inducing regionally-selective adhesion, proliferation and phenotypic maturation of vascular endothelial cells, vascular smooth muscle cells or human bone-derived MG 63 cells. Nanopatterned surfaces created by tethering GRGDSG oligopeptides through polyethylene oxide chains on a polymeric surface promoted spreading, formation of focal adhesion plaques and DNA synthesis in vascular smooth muscle cells. Surfaces nanopatterned with nanocrystalline diamond gave good support for the adhesion, growth and metabolic activity of osteoblast-like MG 63 cells.
    Źródło:
    Engineering of Biomaterials; 2009, 12, no. 89-91; 18-21
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vascular smooth muscle cells in cultures on biofunctionalized cellulose-based scaffolds
    Autorzy:
    Novotna, K.
    Bacakova, L.
    Lisa, V.
    Havelka, P.
    Sopuch, T.
    Klepetar, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/285170.pdf
    Data publikacji:
    2009
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    oxidized cellulose
    tissue engineering
    biofunctionalization
    chitosan
    arginine
    vascular smooth muscle cells
    Opis:
    Viscose, dialdehyde cellulose and oxidized 6-car-boxycellulose with 2.1 or 6.6wt.% of –COOH groups were prepared. The materials were subsequently functionalized with arginine or chitosan. Both unmodified and biofunctionalized materials were seeded with vascular smooth muscle cells. The morphology of the adhered cells indicated that oxidized 6-carbo-xycellulose with 2.1% content of –COOH groups was the most appropriate of all tested materials for potential use in tissue engineering. The shape of the cells on this material was elongated, which demonstrates adequate adhesion and viability of the cells, while the morphology of the cells on other tested materials was spherical. Moreover, the stability of 6-carboxycellulo-se with 2.1wt.% of –COOH groups in the cell culture environment was optimal, with a tendency to degrade slowly with time. The highest stability was found on the viscose samples, whereas there was very low stability on oxidized 6-carboxycellulose with 6.6 wt. % of –COOH groups, and also on dialdehyde cellulose. Functionalization with arginine or chitosan increased the number of adhered cells on the materials, but not markedly. We did not obtain a significant elevation of the cell population densities with time on the tested samples. These results suggest the possibility of using a cellulose-based material in such tissue engineering applications, where high proliferation activity of cells is not convenient, e.g. reconstruction of the smooth mu-scle cell layer in bioartificial vascular replacements.
    Źródło:
    Engineering of Biomaterials; 2009, 12, no. 89-91; 21-24
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A poly(ADP-ribose) synthetase inhibitor, benzamide protects smooth muscle cells but not endothelium against ischemia/reperfusion injury in isolated guinea-pig heart
    Autorzy:
    Jakubowski, Andrzej
    Lomnicka, Magdalena
    Powiązania:
    https://bibliotekanauki.pl/articles/1041139.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    PARS
    coronary vessels
    I/R-induced reperfusion injury
    smooth muscle cells
    endothelium
    Opis:
    Activation of the nuclear enzyme poly(ADP-ribose) synthethase (PARS) is important in the cellular response to oxidative stress. During ischemia and reperfusion (I/R) increased free radical production leads to DNA breakage that stimulates PARS which in turn results in an energy-consuming metabolic cycle and initiation of the apoptotic process. Previous studies have reported that PARS inhibition confers protection in various models of I/R-induced cardiovascular damage. The purpose of this study was to determine the role of PARS inhibition in I/R-induced injury of smooth muscle cells and endothelium in the coronary circulation of the isolated guinea-pig heart. Control hearts and those treated with a PARS inhibitor - benzamide (100 µmol L-1), were subjected to 30 min of subglobal ischemia and subsequent reperfusion (90 min). To analyze the functional integrity of smooth muscle cells and endothelium, one-minute intracoronary infusions of endothelium-independent (sodium nitroprusside, NaNP; 3 µmol L-1) and endothelium-dependent (substance P, SP; 10 nmol L-1) vasodilators were used before ischemia and at the reperfusion time. The degree of the injury of coronary smooth muscle and endothelial cells induced by I/R was estimated in terms of diminished vasodilator responses to NaNP (at 55 min and 85 min of reperfusion) and to SP (at 70 min of reperfusion), respectively, and expressed as the percentage of preischemic response. I/R reduced vasorelaxant responses to both vasodilators by half (to 54.1 ± 5.1% and to 53.6 ± 4.9% of preischemic value for NaNP at 55 min and 85 min of reperfusion, respectively and to 45.9 ± 6.5% for SP at 70 min of reperfusion). PARS inhibition provided complete restoration of vasorelaxation induced by NaNP (107.6 ± 13.3% and 104 ± 14.4% of preischemic response at the two time points of reperfusion, respectively). However, there was no effect on the SP-induced response (48+12.1% of preischemic response). We conclude that pharmacological PARS inhibition with benzamide protects coronary smooth muscle cells but not endothelium against I/R-induced reperfusion injury in the coronary circulation of the guinea-pig heart.
    Źródło:
    Acta Biochimica Polonica; 2007, 54, 1; 199-204
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vascular smooth muscle cells in cultures on low density polyethylene modified with plasma discharge and biofunctionalization
    Autorzy:
    Parizek, M.
    Kasalkova, N.
    Bacakova, L.
    Kolarova, K.
    Lisa, V.
    Svorcik, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/285087.pdf
    Data publikacji:
    2009
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    Ar plasma discharge
    biomaterials
    low-density polyethylene
    cell adhesion
    cell proliferation
    grafting
    tissue engineering
    vascular smooth muscle cells
    Opis:
    Low density polyethylene (LDPE) was modified by an Ar plasma discharge and then grafted with glycine (Gly), bovine serum albumin (BSA) or polyethylene glykol (PEG). Some plasma-treated samples and samples grafted with BSA were exposed to a suspension of colloidal carbon particles (C, BSA+C). Pristine LDPE and tissue culture polystyrene dishes (PSC) were used as control samples. The materials were seeded with rat aortic smooth muscle cells and incubated in a medium DMEM with 10% of fetal bovine serum. On day 1 after seeding, the cells on LDPE modified with plasma only, Gly, BSA and BSA+C adhered in similar numbers as on PSC, while the values on non-modified and PEG-modified samples were significantly lower. On day 5, the highest cell numbers were found again on LDPE with Gly, BSA and BSA+C. On day 7, the highest number of cells was found on LDPE modified only with plasma. The latter cells also dis-played the largest cell spreading area. The increased cell colonization was probably due to the formation of oxygen-containing chemical functional groups after plasma irradiation, and also due to positive effects of grafted Gly, BSA and BSA in combination with colloidal C particles.
    Źródło:
    Engineering of Biomaterials; 2009, 12, no. 89-91; 25-28
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improved adhesion and growth of vascular smooth muscle cells in cultures on polyethylene modified by plasma discharge
    Autorzy:
    Parizek, M.
    Kasalkova, N.
    Bacakova, L.
    Kolarova, K.
    Lisa, V.
    Svorcik, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/284295.pdf
    Data publikacji:
    2007
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
    Tematy:
    biomateriały
    inżynieria tkankowa
    Ar plasma discharge
    high density and low density polyethylene
    cell adhesion
    cell proliferation
    vascular smooth muscle cells
    biomaterials
    tissue engineering
    Opis:
    The attractiveness of synthetic polymers for cell colonization can be affected by physical and chemical modification of the polymer surface. In this study, high density polyethylene (HDPE, m.w. 0.952g/cm3) and low density polyethylene (LDPE, m.w. 0.922g/cm3) were modified by an Ar plasma discharge using Balzers SCD 050 device (exposure time 10, 50, 150 and 400 seconds, discharge power 1.7W). The material was then seeded with rat aortic smooth muscle cells (RASMC; passages 8 to 9, 17 000 cells/cm3) and incubated in a DMEM medium with 10% of fetal calf serum. On day 1 after seeding, the number of initially adhered cells was significantly higher on all modified HDPE and LDPE samples. On day 2, this difference persisted in HDPE, whereas in LDPE only the values on the samples modified by 150 and 400 seconds were significantly higher. On the 5th and 7th day, there were no significant differences in cell number among all LDPE samples. However, on the HDPE foils, significant differences were still apparent on the samples modified for 400 seconds. The cell spreading areas measured on day 1 after seeding were significantly larger on all modified LDPE samples, and, on day 2, on the HDPE samples exposed for 150s. The increased cell colonization was probably due to the formation of oxygen-containing chemical functional groups in the polymer. These results suggest that the responsiveness of the cell to the changes in physiochemical surface properties was more pronounced in HDPE than in LDPE. On both types of polyethylene, the most appropriate exposure time for the enhancement of cell adhesion and growth seemed to be 150 and 400 seconds.
    Źródło:
    Engineering of Biomaterials; 2007, 10, no. 67-68; 1-4
    1429-7248
    Pojawia się w:
    Engineering of Biomaterials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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