Number of found documents: 509
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Nanodiamonds as an innovative system for intracellular delivery of mirna-34a inprostatic cancer therapy
Bitti, G.; Abate, M.; Neuhoferová, Eva; Kindermann, Marek; Petráková, V.; Boccellino, M.; Quagliuolo, L.; Filová, Eva; Benson, Veronika; Caraglia, M.; Amler, Evžen
2018 - English
The microRNA(miRNA)-34a is an important regulator of tumor suppression. It controls the expression of several target proteins involved in cell cycle, differentiation and apoptosis, and antagonizes processes that are necessary for basic cancer cell viability as well as cancer stemness, metastasis, and chemoresistance. It is downregulated in numerous cancer types, including prostatic cancer, and inhibits malignant growth by repressing genes involved in various oncogenic signaling pathways. Given the anti-oncogenic activity of miR-34a, here we proved the substantial benefits of a new therapeutic concept based on nanotechnology delivery of miRNA mimics. In order to monitor the miRNA-34a replacement, we used a fluorescent nanodiamond particles (FND) system with linked miRNA-34a mimic, which was delivered to PC3 and DU145 prostatic cancer cell lines. We used functionalized nanodiamonds coated with polyethylenimine to transfer miRNA-34a into PC3 and DU145 prostatic cancer cell lines and we measured the zeta-potential of these complexes before using them for in vitro experiments. A replacement of miRNA-34 was observed by monitoring levels of miRNA-34 via real-time PCR. Moreover, our in vitro experiments demonstrated that miRNA-34a replacement, using this FND delivery system, decreased viability and induced apoptosis in prostatic cancer cell lines. Our findings suggest the replacement of oncosuppressor miRNA-34a provides an effective strategy for cancer therapy and the FND-based delivery systems seems to be an excellent strategy for a safe and effective targeting of the tumor. Keywords: miR-34a; nanodiamonds; prostate cancer Available at various institutes of the ASCR
Nanodiamonds as an innovative system for intracellular delivery of mirna-34a inprostatic cancer therapy

The microRNA(miRNA)-34a is an important regulator of tumor suppression. It controls the expression of several target proteins involved in cell cycle, differentiation and apoptosis, and antagonizes ...

Bitti, G.; Abate, M.; Neuhoferová, Eva; Kindermann, Marek; Petráková, V.; Boccellino, M.; Quagliuolo, L.; Filová, Eva; Benson, Veronika; Caraglia, M.; Amler, Evžen
Mikrobiologický ústav, 2018

Effect of nanodiamond particles on neuronal tissue
Šimková, Veronika; Benson, Veronika
2018 - English
High-Pressure High-Temperature nanodiamonds are considered to be highly biocompatible due to\ntheir low acute toxicity, which makes them suitable for biomedical applications. However, next to interaction with the cell membrane, nanoscale allows particles to penetrate the plasma membrane and even accumulate in the cell cytoplasm. Recently it brought up questions regarding sustainable nanoparticle application in vivo and potential toxicity hazards. The neuronal tissue consists of neurons and glial cells, and it is separated by a bloodbrain barrier from the peripheral blood system. Neurons are nerve cells forming a complex network of synapses that carry signals in the brain. The neurons are nourished and protected by glial cells. This project aims to find out whether nanodiamonds pass the blood-brain barrier when applied intravenously as a drug carrier and whether they directly interact with the neuronal tissue. Keywords: nanodiamonds; cell cytoplasm; neuronal tissue Available at various institutes of the ASCR
Effect of nanodiamond particles on neuronal tissue

High-Pressure High-Temperature nanodiamonds are considered to be highly biocompatible due to\ntheir low acute toxicity, which makes them suitable for biomedical applications. However, next to ...

Šimková, Veronika; Benson, Veronika
Mikrobiologický ústav, 2018

Development and optimization of the production of recombinant epimerases for pharmaceutical industry. Scale-up of a submerged cultivation technology and down-stream processing
Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Vavruška, Tomáš
2017 - English
Development and optimization of the production of recombinant epimerases for pharmaceutical industry. Scale-up of a submerged cultivation technology and down-stream processing. Keywords: enzyme production Available at various institutes of the ASCR
Development and optimization of the production of recombinant epimerases for pharmaceutical industry. Scale-up of a submerged cultivation technology and down-stream processing

Development and optimization of the production of recombinant epimerases for pharmaceutical industry. Scale-up of a submerged cultivation technology and down-stream processing.

Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Vavruška, Tomáš
Mikrobiologický ústav, 2017

Scale-up and production of various recombinant oxidoreductases
Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek
2017 - English
Development and optimization of pilot cultivations and DSP of recombinant intracellular oxidoreductases in microbial productions for a food industrial use Keywords: enzyme production Available at various institutes of the ASCR
Scale-up and production of various recombinant oxidoreductases

Development and optimization of pilot cultivations and DSP of recombinant intracellular oxidoreductases in microbial productions for a food industrial use

Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek
Mikrobiologický ústav, 2017

UNICELLULAR ALGA CHLORELLA AS A FEED SUPPLEMENT, CURRENT EXPERIENCE AND FUTURE PERSPECTIVES
Kotrbáček, V.; Doucha, Jiří; Kuchařová, V.; Doubek, J.
2017 - English
We studied the effect of Chlorella biomass as a feed supplement. In laying hens we found that diet supplemented with 1 % (i.e. 10 g/kg) of dry disintegrated heterotrophically grown Chlorella biomass significantly increased content of carotenoids in egg yolks of 8 experimental animals already after the first week of supplementation (P<0,01). Compared to 8 control hens these differences remained significantly higher until the end of the eight-week experiment. The average carotenoid concentration was 17,3 mu g per g of yolk in control group and 25,3 mu g per g of yolk in experimental animals (P<0,01). Autotrophically grown Chlorella was supplemented to the 30 gilts one month prior the expected first heat in a dose of 1,5 g per animal per day. These sows entered heat earlier and the number of pregnancy was higher in comparison to the 30 control animals. Other studies observed digestibility of selenium organically bound in Se-enriched Chlorella. The level of selenium in blood, colostrum and also tissues of new born piglets was determined. Group of 8 sows was supplemented with Se-enriched alga during the pregnancy and 3 days after parturition at a dose of 0,3 mg of selenium per 1 kg of feed. The same amount of selenium in the form of sodium selenite was administrated to the control group of 8 individuals. Organic form of selenium significantly increased concentration of Se in blood of sows and colostrum (P<0,05). Piglets born to supplemented sows had also significantly higher level of Se in heart, muscles and liver (P<0.01). The use of fresh Chlorella biomass produced outdoors on a dairy farm was experimentally tested. The liquid fresh biomass applied to dairy cows during the pregnancy at a dose of 15 g dry mass per cow increased the dry matter content in colostrum from 17,5 g per 100 ml of colostrum in control group to 20,5 g per 100 ml of colostrum in supplemented cows (P<0,05). Keywords: Chlorella; feed supplement; flue gas utilization Available at various institutes of the ASCR
UNICELLULAR ALGA CHLORELLA AS A FEED SUPPLEMENT, CURRENT EXPERIENCE AND FUTURE PERSPECTIVES

We studied the effect of Chlorella biomass as a feed supplement. In laying hens we found that diet supplemented with 1 % (i.e. 10 g/kg) of dry disintegrated heterotrophically grown Chlorella biomass ...

Kotrbáček, V.; Doucha, Jiří; Kuchařová, V.; Doubek, J.
Mikrobiologický ústav, 2017

Development of a fed-batch technology of the yeast P. pastoris recombinant protein production in a small pilot scale. Optimization of the process and preparation of a scale-up
Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek
2017 - English
Development of a fed-batch technology of the yeast P. pastoris recombinant protein production in a small pilot scale. Optimization of the process and preparation of a scale-up. Keywords: pastoris production Available at various institutes of the ASCR
Development of a fed-batch technology of the yeast P. pastoris recombinant protein production in a small pilot scale. Optimization of the process and preparation of a scale-up

Development of a fed-batch technology of the yeast P. pastoris recombinant protein production in a small pilot scale. Optimization of the process and preparation of a scale-up.

Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek
Mikrobiologický ústav, 2017

Inactivated bacterial biomass for the lysate preparation.
Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Vavruška, Tomáš
2017 - Czech
Inactivated bacterial biomass for the production of dietary supplements\n- optimization of the cultivation of the source strains.\n Inaktivované bakteriální biomasy pro přípravu potravinových doplňků - optimalizace kultivací zdrojových kmenů.\n\n Keywords: bacterial production Available at various institutes of the ASCR
Inactivated bacterial biomass for the lysate preparation.

Inactivated bacterial biomass for the production of dietary supplements\n- optimization of the cultivation of the source strains.\n

Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Vavruška, Tomáš
Mikrobiologický ústav, 2017

Development of the cultivation of the pathogenic bacteria.
Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Vavruška, Tomáš
2017 - English
Development of the cultivation of pathogenic bacteria with a specific lipopolysaccharide content in the cell structures. Optimization of media and yields.\n\n Keywords: cultivation of pathogens Available at various institutes of the ASCR
Development of the cultivation of the pathogenic bacteria.

Development of the cultivation of pathogenic bacteria with a specific lipopolysaccharide content in the cell structures. Optimization of media and yields.\n\n

Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Vavruška, Tomáš
Mikrobiologický ústav, 2017

Optimization and preparation of the production of auxiliary fertilizers for the treatment of sunflower
Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Prell, Aleš; Vavruška, Tomáš
2017 - Czech
Preparation of production and optimization of agriculture auxiliary fertilizers for a supported cultivation of sunflower.. Příprava výroby a optimalizace výroby zemědělských pomocných přípravků pro podporu pěstování slunečnice Keywords: auxiliary fertilizers Available at various institutes of the ASCR
Optimization and preparation of the production of auxiliary fertilizers for the treatment of sunflower

Preparation of production and optimization of agriculture auxiliary fertilizers for a supported cultivation of sunflower..

Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Prell, Aleš; Vavruška, Tomáš
Mikrobiologický ústav, 2017

Optimization of the cultivation of the slime mold Schizochytrium spp. in a bioreactor.
Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Vavruška, Tomáš
2017 - Czech
Optimization of the medium for the slime mold cultivation for the DHA production. Development of the process, optimal cultivation conditions searching Optimalizace média pro kultivace hlenky produkující DHA. Vývoj procesu, hledání optimálních kultivačních podmínek. Keywords: mold cultivation; DHA Available at various institutes of the ASCR
Optimization of the cultivation of the slime mold Schizochytrium spp. in a bioreactor.

Optimization of the medium for the slime mold cultivation for the DHA production. Development of the process, optimal cultivation conditions searching

Prell, Aleš; Kujan, Petr; Sobotka, Miroslav; Šafář, Hynek; Vavruška, Tomáš
Mikrobiologický ústav, 2017

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