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Start Over Subject apoptóza--účinky léků Type časopisecké články

1. Cellular responses to egg-oil (charismon©)

Creator:
Bereiter-Hahn, Jürgen, Bernd, August, Beschmann, Heike, Eberle, Irina, Kippenberger, Stefan, Rossberg, Maila, Strecker, Valentina, and Zöller, Nadja
Format:
print, text, and regular print
Type:
model:article, article, Text, časopisecké články, and TEXT
Subject:
zvířata, apoptóza--účinky léků, buněčné linie, pohyb buněk--účinky léků, proliferace buněk--účinky léků, buněčné dýchání--účinky léků, buňky kultivované, kur domácí, cytokiny--metabolismus, vejce, epidermis--cytologie, lidé, membránový potenciál mitochondrií--účinky léků, oleje--chemie--farmakologie, reaktivní formy kyslíku--metabolismus, sluneční spáleniny--farmakoterapie, and hojení ran--účinky léků
Language:
English
Description:
Egg-oil (Charismon©) is known for its beneficial action in wound healing and other skin irritancies and its antibacterial activity. The physiological basis for these actions has been investigated using cells in culture: HaCaT-cells (immortalized human keratinocytes), human endothelial cells in culture (HUVEC), peripheral blood mononuclear lymphocytes (PBML) and a full thickness human skin model (FTSM). Emphasis was on the influence of egg-oil on cell migration and IL-8 production in HaCaT cells, respiration, mitochondrial membrane potential, reactive oxygen (ROS)production and proliferation in HUVEC and HaCaT cells, cytokine and interleukin production in PBML and UV-light induced damage of FTSM. IL-8 production by HaCaT cells is stimulated by egg-oil whilst in phythemagglutinin-activated PBMLs production of the interleukins IL-2, IL-6, IL-10 and IFN-γ and TFN-α is reduced. ROS-production after H<sub>2</sub>O<sub>2</sub> stimulation first is enhanced but later on reduced. Respiration becomes activated due to partial uncoupling of the mitochondrial respiratory chain and proliferation of HaCaT and HUVEC is reduced. Recovery of human epidermis cells in FTSM after UV-irradiation is strongly supported by egg-oil. These results support the view that egg-oil acts through reduction of inflammatory processes and ROS production. Both these processes are equally important in cellular aging as in healing of chronic wounds. and J. Bereiter-Hahn, A. Bernd, H. Beschmann, I. Eberle, S. Kippenberger, M. Rossberg, V. Strecker, N. Zöller
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2. Effect of collagen I gel on apoptosis of rat hepatic stellate cells

Creator:
Bittnerová, Lenka, Jiroutová, Alena, Rudolf, Emil, Řezáčová, Martina, and Kanta, Jiří
Format:
print, text, and regular print
Type:
model:article, article, Text, časopisecké články, práce podpořená grantem, and TEXT
Subject:
zvířata, apoptóza--účinky léků, chlorid uhličitý, buněčné kultury, kolagen typu I--farmakologie, cykloheximid, cytochalasin D, modely nemocí na zvířatech, gliotoxin, jaterní hvězdicovité buňky--účinky léků--patologie, jaterní cirhóza--patologie, mužské pohlaví, krysy, and potkani Sprague-Dawley
Language:
English
Description:
Activated hepatic stellate cells (HSC) are a major source offibrous proteins in cirrhotic liver. Inducing or accelerating their apoptosis is a potential way of liver fibrosis treatment. Extracellular matrix (ECM) surrounding cells in tissue affects their differentiation, migration, proliferation and function. Type I collagen is the main ECM component in fibrotic liver. We have examined how this protein modifies apoptosis of normal rat HSC induced by gliotoxin, cycloheximide and cytochalasin D in vitro and spontaneous apoptosis of HSC isolated from CCl4-damaged liver. We have found that type I collagen gel enhances HSC apoptosis regardless of the agent triggering this process. and L. Bittnerová, A. Jiroutová, E. Rudolf, M. Rezácová, J. Kanta
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public