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    Wyświetlanie 1-4 z 4
    Tytuł:
    Changes in thymocytes undergoing programmed death
    Autorzy:
    Goździcka-Józefiak, Anna
    Warchoł, Jerzy
    Zagórski, Łukasz
    Iżycki, Dariusz
    Stasiak, Anna
    Jaroszewski, Jan
    Augustyniak, Jacek
    Powiązania:
    https://bibliotekanauki.pl/articles/1045597.pdf
    Data publikacji:
    1992
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Źródło:
    Acta Biochimica Polonica; 1992, 39, 1; 75-79
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monocytes in children with leukemias and lymphomas - down-regulation of HLA and costimulatory molecules.
    Autorzy:
    Łuczyński, Włodzimierz
    Stasiak-Barmuta, Anna
    Krawczuk-Rybak, Maryna
    Szymański, Marcin
    Malinowska, Iwona
    Mitura-Lesiuk, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/1041525.pdf
    Data publikacji:
    2004
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    infection
    lymphoma
    costimulation
    leukemia
    monocytes
    Opis:
    The aim of the study was to evaluate the function of monocytes in children with leukemias and lymphomas based on the expression of critical costimulatory, activatory and adhesion molecules (CD80, CD86, HLA-DR and CD54 = ICAM-1), estimated with tricolor flow cytometry. In comparison to the control group we found a lower percentage of monocytes with costimulatory molecules (CD80 before and CD86 after lipopolysaccharide stimulation) at the time of diagnosis and of monocytes with HLA-DR molecules after remission induction. We also noted a lower percentage of monocytes with HLA-DR expression in the group with severe or therapy resistant infections. The results of our investigation suggest some defect in costimulation and antigen presentation in lymphoproliferative diseases in children.
    Źródło:
    Acta Biochimica Polonica; 2004, 51, 4; 1067-1073
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    CD40 stimulation induces differentiation of acute lymphoblastic leukemia cells into dendritic cells
    Autorzy:
    Łuczyński, Włodzimierz
    Stasiak-Barmuta, Anna
    Iłendo, Elżbieta
    Krawczuk-Rybak, Maryna
    Malinowska, Iwona
    Mitura-Lesiuk, Małgorzata
    Parfieńczyk, Adam
    Szymański, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/1041252.pdf
    Data publikacji:
    2006
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    immunotherapy
    T-lymphocytes
    CD40L
    acute lymphoblastic leukemia
    dendritic cells
    Opis:
    Despite the very high percentage of long-term remissions in acute lymphoblastic leukemia (ALL) in children, some of them suffer from recurrence of the disease. New treatment modalities, e.g. effective geno- and immunotherapy are needed. The use of neoplasmatic cells to present tumor antigens is one of the approaches in cancer vaccines. ALL cells lack the expression of costimulatory molecules and are poor antigen presenting cells (APCs) for T-cell activation. CD40/40L interaction stimulates B-cells to proliferate, differentiate, upregulate costimulatory molecules and increase antigen presentation. The aim of the study was to test the hypothesis that ALL cells can be turned into professional APCs by CD40L activation. Children with B-cell precursor ALL were enrolled into the study. Mononuclear cells from bone marrow or peripheral blood were stimulated with CD40L and interleukin 4. Results: 1) after culture we noted upregulation of all assessed costimulatory, adhesion and activatory molecules i.e. CD1a, CD11c, CD40, CD54, CD80, CD83, CD86, CD123, HLA class I and II; 2) CD40L activated ALL cells induced proliferation of allogeneic T-cells (measured by [3H]thymidine incorporation). These results confirm the possibility of enhancing the immunogenicity of ALL cells with the CD40L system and indicate that this approach can be used in immunotherapeutic trials.
    Źródło:
    Acta Biochimica Polonica; 2006, 53, 2; 377-382
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diminished expression of ICOS, GITR and CTLA-4 at the mRNA level in T regulatory cells of children with newly diagnosed type 1 diabetes
    Autorzy:
    Łuczyński, Włodzimierz
    Wawrusiewicz-Kurylonek, Natalia
    Stasiak-Barmuta, Anna
    Urban, Remigiusz
    Iłendo, Elżbieta
    Urban, Mirosława
    Hryszko, Marek
    Krętowski, Adam
    Górska, Maria
    Powiązania:
    https://bibliotekanauki.pl/articles/1040597.pdf
    Data publikacji:
    2009
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    immunotherapy
    T-lymphocytes
    autoimmunity
    FoxP3
    Opis:
    Diabetes mellitus is one of the most common chronic diseases in children. T regulatory cells (Tregs) modulate response to autoantigens and probably play a role in pathogenesis of type 1 diabetes (T1DM). The aim of the present study was the assessment of T regulatory cells including their percentages and expression of critical genes in these cells in children with newly diagnosed type 1 diabetes. The examined group consisted of 50 children with T1DM. A flow cytometric analysis of T-cell subpopulations was performed using the following markers: anti-CD4, anti-CD25 and anti-CD127 (=IL-7R). Additionally, T regulatory cells were isolated for assessment of mRNA levels for chosen genes with the real-time RT-PCR technique. The percentages of CD4+CD25highCD127dim/- were very low and did not differ between T1DM and control children. We did not observe any statistically significant differences between healthy and diabetic children in mRNA expression for FoxP3, IL-7R (CD127), IL-8RA, IL-10RA, IL-12A, IL-2RA (CD25), IL-21, STAT1, STAT3, SOCS2, SOCS3, TGF-β1-R1, TGF-β-R2 and TBX-21 genes. Interestingly the mRNA level for CTLA-4, ICOS1, IL-23, IL-27, SMAD3 and GITR were lower in Treg cells of children with diabetes compared to the control patients. No disturbances in the percentages of T regulatory cells in patients with diabetes but diminished expression of some elements important in Treg function could be the result of an immunologic imbalance accompanying the onset of the diabetes. The results of our study should be used in future research in the field of immunotherapy in pediatric diabetes.
    Źródło:
    Acta Biochimica Polonica; 2009, 56, 2; 361-370
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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