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Wyszukujesz frazę "Souchelnytskyi, Serhiy" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Progress and challenges in the proteomics of domestic pig in research on the female reproductive system
Autorzy:
Kolakowska, J.
Franczak, A.
Saini, Ravi Kanth Rao
Souchelnytskyi, Serhiy
Powiązania:
https://bibliotekanauki.pl/articles/961364.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
The proteomics of pigs is developing dynamically, attracting much attention among representatives of medical and health sciences, veterinary medicine, agricultural and natural sciences. The pig has been widely studied in genetics and genomics. However, proteomic applications are still awaiting more extensive implementation, both in the use of pigs as animal models in biomedicine sciences, and in the exploration of physiological tracts important for pig production. Underdeveloped databases for identification and analysis of porcine proteins as well as the scarcity of detailed information on similarities and differences between humans and pigs at the molecular level are hampering the pig proteomics. However, the use of pigs in proteomic studies in both physiological and biomedical sciences is prevalent comparing to other farm animals. The focus of the reported pig model proteomics studies is on exploring physiology and diseases, and on improving pig breading and productivity. This species has been used as a model in proteomics studies involved in ocular, brain, nutritional and reproduction research, etc. In the present paper we discuss technologies and bioinformatic tools used in studies of a proteome to verify the peptide- and protein-based content and we summarize the current status of proteomic studies of pigs. We focus on studies of the female reproductive system because the examination and understanding of the biology of oocytes, the oviduct and the uterus could facilitate the identification of mechanisms involved in the prenatal development, and it may help to develop new treatment for infertility of farm animals.
Źródło:
Journal of Elementology; 2016, 21, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potential role of transforming growth factor β1 in drug resistance of tumor cells.
Autorzy:
Stoika, Rostyslav
Yakymovych, Mariya
Souchelnytskyi, Serhiy
Yakymovych, Ihor
Powiązania:
https://bibliotekanauki.pl/articles/1043628.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
tumor cells
drug resistance
transforming growth factor b1
Opis:
Acquired drug resistance of tumor cells is frequently observed in cancer patients undergoing chemotherapy. We studied murine leukemia L1210 cells sensitive and resistant to the cytotoxic action of cisplatin and showed that cisplatin-resistant leukemia cells were also refractory to TGF β1-dependent growth inhibition and apoptosis. Addressing the question about the mechanisms responsible for the cross-resistance to cisplatin and TGF β1, we found that cisplatin- and TGF β1-resistant L1210 cells possessed a decreased expression of type I TGF β1 receptor, while the expression of type II TGF β1 receptor was not affected. Western blot analysis of Smad proteins 2, 3, 4, 6, and 7, which participate in signal transduction pathway down-stream of the TGF b1 receptors, revealed an increased expression of Smad 6, inhibiting TGF b1 action, only in cisplatin- and TGF β1-resistant L1210 cells. TGF β1 and especially the cytotoxic mistletoe agglutinin increased Smad 6 expression in TGF β1-sensitive but not in TGF β1-resistant L1210 cells. TGF β1-resistant L1210 cells also differed from TGF β1-sensitive cells by the lack of expression of the pro-apoptotic p53 protein and higher level of expression of the anti-apoptotic Bcl-2 protein. Thus, the described co-expression of tumor cell refractoriness to an anti-cancer drug and to the inhibitory cytokine TGF β1 is accompanied by multiple changes in the TGF β1 signal transduction pathway and in other regulatory systems of the target cells. Besides, we found that various anti-tumor drugs and cytotoxic plant lectins increased the level of TGF b1 expression in both TGF β1-sensitive and -resistant L1210 cells. A hypothesis is proposed that TGF β1 can at least partly mediate the effect of cell-stressing agents and, thus, the development of TGF β1 resistance may be responsible for the appearance of tumor cell refractoriness to the action of some anti-cancer drugs.
Źródło:
Acta Biochimica Polonica; 2003, 50, 2; 497-508
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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