Methodology of spinal cord injury model design in miniature pigs and its application for new methods of treatment and drugs testing
Maršala, M.; Motlík, Jan; Juhás, Štefan; Juhásová, Jana
2014 - Czech
The goal of proposed methodology is to describe the possibilities of reproducible and adjustable minipigs spinal cord injury model utilization in preclinical practice for new methods of treatment and drugs testing potentially favorable for therapy of acute and chronic spinal cord injury in human. The methodology has been developed as a part of solution to program of applied research and experimental development ALFA Technology Agency of the Czech Republic, subprogram Progressive technologies, materials and systems (TA01011466; 80%) and Operational Program Research and Development for Innovation Ministry of Education, Youth and Sports (project ExAM - CZ.1.05./2.1.00/03.0124; 20%). Cílem předložené metodiky je popsat možnosti využití reprodukovatelného a nastavitelného modelu míšního poškození miniaturních prasat v preklinické praxi pro testování nových léčebných postupů a terapeutik potenciálně vhodných pro léčbu akutního nebo chronického poškození míchy u lidí. Metodika vznikla jako součást řešení programu aplikovaného výzkumu ALFA Technologické Agentury ČR, podprogramu Progresivní technologie, materiály a systémy (TA01011466; 80%) a operačního programu Výzkum a vývoj pro inovace Ministerstva školství, mládeže a tělovýchovy (projekt ExAM - CZ.1.05./2.1.00/03.0124; 20%).
Keywords:
spinal cord injury; minipig
Available at various institutes of the ASCR
Methodology of spinal cord injury model design in miniature pigs and its application for new methods of treatment and drugs testing
The goal of proposed methodology is to describe the possibilities of reproducible and adjustable minipigs spinal cord injury model utilization in preclinical practice for new methods of treatment and ...
Produkce bioplynu a mikrobiální profil bioplynové stanice
Fliegerová, Kateřina; Mrázek, Jakub; Štrosová, Lenka; Bubíková, Hana; Křepelková, M.; Hašek, L.; Erban, I.; Lhota, T.
2014 - Czech
Keywords:
biogas
Available at various institutes of the ASCR
Produkce bioplynu a mikrobiální profil bioplynové stanice
Quantitative monitoring of anaerobic rumen fungus Anaeromyces in complex microbial ecosystem of anaerobic fermenter
Fliegerová, Kateřina; Mrázek, Jakub; Štrosová, Lenka
2012 - Czech
The aim of method is quantitative monitoring of anaerobic rumen fungus Anaeromyces in complex microbial ecosystem of anaerobic fermenter. Method is based on qPCR approach using following primer pair: forward ITS1F and reverse NeoQPCR rev. Amplification is performed using commercial kit qPCR 2x SYBR Master mix (Top-Bio, Czech Republic) by quantitative PCR cycler machine Mx3005P (Stratagene, USA). Cílem předkládaného metodického postupu je kvantitativní monitorování mikroskopické anaerobní vláknité houby rodu Anaeromyces ve složitém mikrobiálním ekosystému anaerobního fermentoru. Metoda je založena na kvantitativní PCR metodě s použitím primerů forward ITS1F a reverzního primeru. Amplifikace se provádí pomocí komerčního kitu qPCR 2x SYBR Master mixu (Top-Bio, ČR) na přístroji Mx3005P (Stratagene, USA).
Keywords:
Anaeromyces
Available at various institutes of the ASCR
Quantitative monitoring of anaerobic rumen fungus Anaeromyces in complex microbial ecosystem of anaerobic fermenter
The aim of method is quantitative monitoring of anaerobic rumen fungus Anaeromyces in complex microbial ecosystem of anaerobic fermenter. Method is based on qPCR approach using following primer pair: ...
E-INFRASTRUCTURES FOR RESEARCH AND INNOVATION: LINKING INFORMATION SYSTEMS TO IMPROVE SCIENTIFIC KNOWLEDGE PRODUCTION
Ráb, Petr
2012 - English
The workshop gives an overview about CRIS in the Czech Republic and Slovakia. It consists of a number of short presentations that mention important aspects and current question about CRIS in the two neighbouring countries. Research evaluation is among the important topics as well.
Keywords:
CRIS
Available at various institutes of the ASCR
E-INFRASTRUCTURES FOR RESEARCH AND INNOVATION: LINKING INFORMATION SYSTEMS TO IMPROVE SCIENTIFIC KNOWLEDGE PRODUCTION
The workshop gives an overview about CRIS in the Czech Republic and Slovakia. It consists of a number of short presentations that mention important aspects and current question about CRIS in the two ...
Microbial diversity of the biogas station
Fliegerová, Kateřina; Mrázek, Jakub; Štrosová, Lenka; Procházka, J.; Dohányos, M.; Zábranská, J.
2010 - Czech
This paper discusses the different microbial diversity biogas station. Tato práce pojednává o rozdílné mikrobiální diversitě bioplynových stanic.
Keywords:
biogas; microbime; diversity
Available at various institutes of the ASCR
Microbial diversity of the biogas station
This paper discusses the different microbial diversity biogas station.
Effect of Palmitoylchitosan on Cholesterol Homeostatis in Rats
Marounek, Milan; Volek, Z.; Skřivanová, E.; Tůma, J.; Synytsya, A.
2010 - English
The association between plasma cholesterol and coronary hearth disease is well established; thus the possibility of plasma cholesterol reduction by interfering with the absorption of sterols in the intestine has been studied.
Keywords:
palmitoylchitosan; choelsterol; rat
Available at various institutes of the ASCR
Effect of Palmitoylchitosan on Cholesterol Homeostatis in Rats
The association between plasma cholesterol and coronary hearth disease is well established; thus the possibility of plasma cholesterol reduction by interfering with the absorption of sterols in the ...
Amphibians recorded in the Bamenda Highlands, Cameroon
Gvoždík, Václav
2010 - English
An endemics species of Amphibians were recorded in the Bamenda Highlands, Cameroon.
Keywords:
Amphibians; Cameroon
Available at various institutes of the ASCR
Amphibians recorded in the Bamenda Highlands, Cameroon
An endemics species of Amphibians were recorded in the Bamenda Highlands, Cameroon.
Proteomics of CDK inhibition in cancer cells
Kovářová, Hana; Skalníková, Helena; Halada, Petr; Strnad, M.; Hajdúch, M.
2007 - English
Využíváme komplexního proteomického přístupu pro studium biochemického principu protinádorového účinku syntetických inhibitorů cyklin dependentních kináz (CDKI) a pro hledání nových proteinů asociovaných s těmito biologickými účinky. Nádorové buňky dvou buněčných linií reprezentujících hematologickou malignitu a solidní tumor kultivujeme v přítomnosti nebo absenci CDKI Boheminu. Celulární proteiny těchto linií extrahujeme a frakcionujeme pomocí klasické dvourozměrné gelové chromatografie a take pomocí dvourozměrné kapalinové chromatografie (systém PF2D) Získané proteinové mapy počítačově vyhodnocujeme a diferenční proteiny identifikujeme hmotnostní spektrometrií. Tyto proteiny jsou kandidátními biomarkery protinádorové odpovědi na inhibici cyklin dependentních kináz. In order to improve our understanding of the biochemical basis of the anti-cancer activity of olomoucine-derived synthetic cyclin-dependent kinase inhibitors (CDKIs) and to search for novel proteins associated with these biological effects we applied complex proteomic approaches. To analyse cellular responses to the CDKI we used two cancer models: the CEM T-lymphoblastic leukemia cell line representing hematological malignancy, and the A549 lung adenocarcinoma cell line as a solid tumor model. Cancer cells of these lines were cultured in both the presence and absence (controls) of the CDKI, bohemine (BOH). Cellular proteins of both of these lines were then extracted and fractionated using conventional two-dimensional gel electrophoresis (2-DE), and for the CEM T-lymphoblastic leukemia cell line we also used a 2-D liquid phase fractionation system ProteomeLab PF 2D ( Beckman Coulter). Computer-assisted data analysis of the resulting 2-D protein expression maps was applied to determine the similarity/dissimilarity of the maps and to select characteristic protein spots or bands based on the quantitative differences between BOH-treated and control cells. Many of these differentially expressed proteins were identified by mass spectrometry, since they represent candidate biomarkers of cancer cell responses to CDK inhibition and cellular pathways that are relevant to the anti-cancer activity of the CDKIs. Subsequently, we focused directly on these proteins in confirmatory studies using various techniques (including quantitative immunoblotting, immunocytochemistry and functional activity analyses) to demonstrate the validity of the proteomic results and extend our knowledge of the CDKI effects.
Keywords:
cyclin-dependent kinase inhibitors; cancer; proteomics
Available at various institutes of the ASCR
Proteomics of CDK inhibition in cancer cells
Využíváme komplexního proteomického přístupu pro studium biochemického principu protinádorového účinku syntetických inhibitorů cyklin dependentních kináz (CDKI) a pro hledání nových proteinů ...
CDC25A is able to induce resumption of meiosis but compromises metaphase I-metaphase II transition in mouse oocytes
Šolc, Petr; Šašková, Adéla; Baran, V.; Kubelka, Michal; Motlík, Jan
2007 - English
Práce se zabývá expresí a funkcí CDC25A v myších oocytech. Bylo zjištěno, že CDC25A protein se exprimuje v GV-oocytech, avšak jeho hladina při meiotickém zrání klesá, přičemž na konci meiosy je v metafase II oocytech pouze velmi nízká hladina CDC25A proteinu. Tento CDC25A proteinový pokles je závislý na CDK1 aktivitě, nesouvisí však se změnami hladiny Cdc25A mRNA, která zůstává konstantní. Pomocí funkčních studií (RNA interference, mikroinjekce mRNA) jsme jasně prokázali, že CDC25A je nezbytná pro znovuzahájení meiosy a tvorbu metafase I spindelu. Pokles CDC25A aktivity po znovuzahájení meiosy je klíčový pro korektní metafase I – metafase II přechod. We have shown that CDC25A protein is expressed in GV-stage oocytes but decreases, in CDK1-dependent manner, during meiotic maturation. As compared with GV-stage only a very low level of CDC25A protein is present at metaphase I (MI) and metaphase II (MII) stages. CDC25A mRNA is stable during entire meiotic maturation. Exogenous CDC25A was sufficient to overcome cAMP-mediated GV-stage block. Using microinjection of GFP-CDC25A and GFP-CDC25B mRNAs constructs we have revealed that CDC25A is exclusively nuclear protein until nuclear envelope break down (NEBD). In contrast CDC25B localizes to cytoplasm at GV-stage oocytes and translocates to nucleus shortly before NEBD. Overexpression of GFP-CDC25A, to interfere with CDC25A degradation during meiotic maturation, resulted in MI block characterized with problems in chromosome congression and spindle formation. This MI block was accompanied with the transient reduction of both CDK1 and MAPK activities. RNAi mediated CDC25A knock-down resulted in a reduced ability to resume meiosis and to reach MII. These data demonstrate that behavior of CDC25A during female meiosis differs significantly from mitosis and CDC25A is involved in both, resumption of meiosis and also in metaphase I spindle formation as a prerequisite for correct MI-MII transition. It is evident that CDC25B is not only important CDC25 phosphatase for meiotic maturation but also CDC25A has its meiotic specific role.
Keywords:
meiosis
Available at various institutes of the ASCR
CDC25A is able to induce resumption of meiosis but compromises metaphase I-metaphase II transition in mouse oocytes
Práce se zabývá expresí a funkcí CDC25A v myších oocytech. Bylo zjištěno, že CDC25A protein se exprimuje v GV-oocytech, avšak jeho hladina při meiotickém zrání klesá, přičemž na konci meiosy je v ...
Modulation of intracellular caspase machinery using organ culture approach
Matalová, Eva; Fleischmannová, Jana; Norek, Adam; Míšek, Ivan
2007 - English
Orgánové explantátové kultury minimalizují experimentální zásahy na zvířatech, ale současně umožňují studium intaktních orgánů a tkání se zachováním mezibuněčných interakcí odpovídajících systémům in vivo. Explantáty mohou být navíc modulovány celou řadou moderních mikromanipulačních technik (elektroporace, inhibice, atd.). Příspěvek ukazuje možnost využití explantátových kultur při studiu apoptotických událostí během embryogeneze, a to na modelu digitalizace myších končetin, morfogeneze zubních základů a separace středoušních kůstek. Demonstrovány jsou výsledky specifických farmakologických inhibic intracelulárních signálních drah se zaměřením na kaspázy jako klíčové molekuly realizace apoptotických signálů. Organ explant cultures eliminate animal suffering during experiments but simultaneously allow investigations of intact organ, tissue and cell systems with preserved interactions corresponding to the situation in vivo. Moreover, the explants can be manipulated in several ways using modern micromanipulation techniques (e.g. electroporation, inhibition). We show possible usage of explant culture approaches in embryonal apoptosis research in three models – mouse limb digitalization, tooth germ morphogenesis, separation of middle ear ossicles. Data from specific pharmaceutical inhibitions focused on key apoptotic molecules – caspases - are demonstrated.
Keywords:
caspase machinery
Available at various institutes of the ASCR
Modulation of intracellular caspase machinery using organ culture approach
Orgánové explantátové kultury minimalizují experimentální zásahy na zvířatech, ale současně umožňují studium intaktních orgánů a tkání se zachováním mezibuněčných interakcí odpovídajících systémům in ...
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