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The role of NK1.1+ cells in the protection against MHC class I+ HPV16-associated tumours

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    0108993 - UMG-J 20043215 RIV CZ eng J - Journal Article
    Šímová, Jana - Bubeník, Jan - Bieblová, Jana - Jandlová, Táňa
    The role of NK1.1+ cells in the protection against MHC class I+ HPV16-associated tumours.
    [Úloha buněk NK1.1+ v ochraně proti MHC I+ nádorům vyvolaným HPV16.]
    Folia Biologica. Roč. 50, č. 6 (2004), s. 200-202. ISSN 0015-5500. E-ISSN 0015-5500
    R&D Projects: GA AV ČR IAA5052203; GA AV ČR KSK5011112; GA MZd NC7148; GA MZd NR7807
    Institutional research plan: CEZ:AV0Z5052915
    Keywords : HPV16 * MHC class I expression * NK1.1+ cells
    Subject RIV: EC - Immunology
    Impact factor: 0.507, year: 2004

    Depletion of NK1.1+ cells by repeated i.p. injections of PK136 antibody significantly enhanced growth of MHC class I+ tumours in syngeneic mice. Depletion starting before tumour transplantation substantially accelerated tumour growth; depletion starting on day 7 or 14 after tumour transplantation was without any effect. These results indicate that the NK1.1+ cells play an important inhibitory role during the early phase of the growth of some MHC class I+ tumours. Since the relevant target for NK cells is a \"missing self\" signal, absence of the MHC class I molecules, the NK cells cannot be expected to directly inhibit the growth of the MHC class I+ tumours. The results indicate that the effects of non-NK cells or indirect effects mediated by NK cell interactions and release of cytokines were responsible for the results

    Deplece buněk NK1.1+ opakovanými i.p. injekcemi protilátky PK136 výrazně posílilo růst MHC I+ nádorů v syngenních myších. Deplece započatá před transplantací nádoru podstatně urychlila jejich růst; deplece započatá 7. či 14. den po transplantaci nádoru neměla žádný účinek. Z těchto výsledků vyplývá, že buňky NK1.1+ hrají důležitou inhibiční úlohu během časné fáze růstu některých MHC I+ nádorů
    Permanent Link: http://hdl.handle.net/11104/0016107

     
     

Number of the records: 1  

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