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    Wyświetlanie 1-6 z 6
    Tytuł:
    Dwie przyjaźnie Andrzeja Trzebińskiego
    Autorzy:
    Janicka, Elżbieta.
    Powiązania:
    Gazeta Wyborcza 2001, nr 47, s. 18-20
    Współwytwórcy:
    Rodak, Paweł. Polemika
    Janicka, Elżbieta. Polemika
    Miłosz, Czesław. Polemika
    Toruńczyk, Barbara. Polemika
    Data publikacji:
    2001
    Tematy:
    Trzebiński, Andrzej
    Trzebiński Andrzej (1922-1943) biografia
    Konfederacja Narodu (organizacja) czasopisma 1939-1945 r.
    Sztuka i Naród (czasop.; 1942-1944; Warszawa)
    II wojna światowa (1939-1945)
    Konspiracja
    Czasopismo literackie
    Czasopismo polskie
    Historia
    Opis:
    Polem.:; Poeta, nie doktryner; spór o Andrzeja Trzebińskiego; Paweł Rodak; Gazeta Wyborcza; 2001; nr 196; s. 12.
    Cień Konfederacji Narodu; Elżbieta Janicka; Gazeta Wyborcza; 2001; nr 196; s. 12-13.
    Szanowny Panie; Czesław Miłosz; Gazeta Wyborcza; 2001; nr 202; s. 11.
    Wokół "Sztuki i Narodu"; Barbara Toruńczyk; Gazeta Wyborcza; 2001; nr 254; s. 12.
    Dot. Andrzeja Trzebińskiego, redaktora "Sztuki i Narodu", pisma Konfederacji Narodu.
    Fot.
    Dostawca treści:
    Bibliografia CBW
    Artykuł
    Tytuł:
    Escherichia coli small heat shock proteins IbpA/B enhance activity of enzymes sequestered in inclusion bodies.
    Autorzy:
    Kuczyńska-Wiśnik, Dorota
    Żurawa-Janicka, Dorota
    Narkiewicz, Joanna
    Kwiatkowska, Joanna
    Lipińska, Barbara
    Laskowska, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/1041504.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    protein aggregation
    inclusion bodies
    IbpA/B
    Opis:
    Escherichia coli small heat shock proteins, IbpA/B, function as molecular chaperones and protect misfolded proteins against irreversible aggregation. IbpA/B are induced during overproduction of recombinant proteins and bind to inclusion bodies in E. coli cells. We investigated the effect of ΔibpA/B mutation on formation of inclusion bodies and biological activity of enzymes sequestered in the aggregates in E. coli cells. Using three different recombinant proteins: Cro-β-galactosidase, β-lactamase and rat rHtrA1 we demonstrated that deletion of the ibpA/B operon did not affect the level of produced inclusion bodies. However, in aggregates containing IbpA/B a higher enzymatic activity was detected than in the IbpA/B-deficient inclusion bodies. These results confirm that IbpA/B protect misfolded proteins from inactivation in vivo.
    Źródło:
    Acta Biochimica Polonica; 2004, 51, 4; 925-931
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in expression of serine proteases HtrA1 and HtrA2 during estrogen-induced oxidative stress and nephrocarcinogenesis in male Syrian hamster
    Autorzy:
    Zurawa-Janicka, Dorota
    Kobiela, Jaroslaw
    Stefaniak, Tomasz
    Wozniak, Agnieszka
    Narkiewicz, Joanna
    Wozniak, Michał
    Limon, Janusz
    Lipinska, Barbara
    Powiązania:
    https://bibliotekanauki.pl/articles/1040768.pdf
    Data publikacji:
    2008
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    17-β-estradiol
    HtrA proteases
    estrogen-induced carcinogenesis
    oxidative stress
    Opis:
    Serine proteases HtrA1 and HtrA2 are involved in cellular stress response and development of several diseases, including cancer. Our aim was to examine the involvement of the HtrA proteins in acute oxidative stress response induced in hamster kidney by estrogen treatment, and in nephrocarcinogenesis caused by prolonged estrogenization of male Syrian hamster. We used semi-quantitative RT-PCR to estimate the HtrA1 and HtrA2 mRNA levels in kidney tissues, and Western blotting to monitor the amount of the HtrA proteins. Within the first five hours following estrogen administration both HtrA1 mRNA and the protein levels were increased significantly. No changes in the expression of HtrA2 were observed. This indicates that HtrA1 may be involved in the response against oxidative stress induced by estrogen treatment in hamster kidney. During prolonged estrogenization, a significant reduction of the HtrA1 mRNA and protein levels was observed after 6 months of estradiol treatment, while the expression of HtrA2 was significantly elevated starting from the third month. This suggests an involvement of the HtrA proteins in estrogen-induced nephrocarcinogenesis in hamster. Using fluorescence in situ hybridization we localized the HtrA1 gene at the qb3-4 region of Syrian hamster chromosome 2, the region known to undergo a nonrandom deletion upon prolonged estrogenization. It is possible that the reduced level of HtrA1 expression is due to this chromosomal aberration. A full-length cDNA sequence of the hamster HtrA1 gene was obtained. It codes for a 50 kDa protein which has 98 and 96% identity with mouse and human counterparts, respectively.
    Źródło:
    Acta Biochimica Polonica; 2008, 55, 1; 9-20
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Immune response against HtrA proteases in children with cutaneous mastocytosis
    Autorzy:
    Renke, Joanna
    Kędzierska-Mieszkowska, Sabina
    Lange, Magdalena
    Nedoszytko, Bogusław
    Liberek, Anna
    Plata-Nazar, Katarzyna
    Renke, Marcin
    Wenta, Tomasz
    Żurawa-Janicka, Dorota
    Skórko-Glonek, Joanna
    Lipińska, Barbara
    Powiązania:
    https://bibliotekanauki.pl/articles/1038382.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    HtrA proteases
    children
    cutaneous mastocytosis
    mast cells
    Opis:
    Mast cells play an important role in both, the innate and adaptive immunity, however, clonal proliferation of abnormal mast cells in various organs leads to mastocytosis. A skin variant of the disease, cutaneous mastocytosis (CM) is the most frequent form of mastocytosis in children. HtrA proteases are modulators of important cellular processes, including cell signaling and apoptosis, and are related to development of several pathologies. The above and the observation that mast cells constitutively release the HtrA1 protein, prompted us to investigate a possible involvement of the HtrA proteins in pediatric CM. Levels of the serum autoantibodies (IgG) against the recombinant HtrA proteins (HtrA1-4) in children with CM (n=36) and in healthy controls (n=62) were assayed. Anti-HtrA IgGs were detected using enzyme linked immunosorbent assay (ELISA) and Western-blotting. In the CM sera, levels of the anti-HtrA1 and anti-HtrA3 autoantibodies were significantly increased when compared to the control group, while the HtrA protein levels were comparable. No significant differences in the anti-HtrA2 IgG level were found; for the anti-HtrA4 IgGs lower levels in CM group were revealed. In healthy children, the IgG levels against the HtrA1, -3 and -4 increased significantly with the age of children; no significant changes were observed for the anti-HtrA2 IgG. Our results suggest involvement of the HtrA1 and HtrA3 proteins in pediatric CM; involvement of the HtrA4 protein is possible but needs to be investigated further. In healthy children, the autoantibody levels against HtrA1, -3 and -4, but not against HtrA2, increase with age.
    Źródło:
    Acta Biochimica Polonica; 2018, 65, 3; 471-478
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dynamics of estrogen-induced oxidative stress
    Autorzy:
    Kobiela, Jarek
    Stefaniak, Tomasz
    Krajewski, Jacek
    Kalinska-Blach, Beata
    Zurawa-Janicka, Dorota
    Lachinski, Andrzej
    Gackowski, Daniel
    Olinski, Ryszard
    Nowak, Jerzy
    Knap, narcyz
    Lipinska, Barbara
    Sledzinski, Zbigniew
    Wozniak, Michal
    Powiązania:
    https://bibliotekanauki.pl/articles/1041076.pdf
    Data publikacji:
    2007
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    8-oxodGuo
    estradiol
    protein oxidation
    carcinogenesis
    DNA damage
    lipid peroxidation
    Opis:
    The objective of this study was to assess the dynamics of oxidative damage to cellular macromolecules such as proteins, lipids and DNA under conditions of oxidative stress triggering early stages of estrogen-dependent carcinogenesis. A rodent model of carcinogenesis was used. Syrian hamsters were sacrificed after 1, 3, 5 h and one month from the initial implantation of estradiol. Matching control groups were used. Kidneys as target organs for estradiol-mediated oxidative stress were excised and homogenized for biochemical assays. Subcellular fractions were isolated. Carbonyl groups (as a marker of protein oxidation) and lipid hydroxyperoxides were assessed. DNA was isolated and 8-oxodGuo was assessed. Electron paramagnetic resonance spectroscopy was used to confirm the results for lipid peroxidation. Exposition to estradiol in the rodent model leads to damage of macromolecules of the cell, including proteins and DNA, but not lipids. Proteins appear to be the primary target of the damage but are closely followed by DNA. It has previously been speculated that protein peroxides can increase DNA modifications. This time sequence was observed in our study. Nevertheless, the direct relation between protein and DNA damage still remains unsolved.
    Źródło:
    Acta Biochimica Polonica; 2007, 54, 2; 289-295
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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