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CpG oligodeoxynucleotides are effective in therapy of minimal residual tumour disease after chemotherapy or surgery in a murine model of MHC class I-deficient, HPV16-associated tumours

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    0092894 - ÚMG 2008 RIV GR eng J - Journal Article
    Reiniš, Milan - Šímová, Jana - Indrová, Marie - Bieblová, Jana - Bubeník, Jan
    CpG oligodeoxynucleotides are effective in therapy of minimal residual tumour disease after chemotherapy or surgery in a murine model of MHC class I-deficient, HPV16-associated tumours.
    [CpG oligonukleotidy jsou účinné při terapii minimální zbytkové nádorové choroby MHC I negativních myších nádorů asociovaných s HPV16 po chemoterapii nebo jejich chirurgickém dstranění.]
    International Journal of Oncology. Roč. 30, č. 5 (2007), s. 1247-1251. ISSN 1019-6439. E-ISSN 1791-2423
    R&D Projects: GA ČR GA301/04/0492; GA ČR GA301/06/0774
    EU Projects: European Commission(XE) 18933 - CLINIGENE
    Grant - others:Liga proti rakovině, Praha(CZ) XX
    Institutional research plan: CEZ:AV0Z50520514
    Keywords : HPV16 * minimal residual tumour disease * CpG oligonucleotides
    Subject RIV: EB - Genetics ; Molecular Biology
    Impact factor: 2.295, year: 2007

    Oligodeoxynucleotides containing guanine-cytidine dimers (CpG ODN) are potent inducers of anti-tumour immune responses. In this study, we analyzed the capacity of CpG ODN to inhibit the growth of both MHC class I-positive and -deficient tumours after debulking the tumour mass by chemotherapy or surgery. We employed an animal model resembling human papillomavirus (HPV) 16-associated tumours. Tumour cell lines with distinct cell surface expression of the MHC class I molecules were injected into syngeneic C57BL/6 mice, and the growing tumours were either subjected to cytoreductive chemotherapy with ifosfamide derivative, CBM-4A, or surgically removed. Subsequent treatment with synthetic CpG ODN significantly blocked the growth of the recurrent tumours. Our results indicate that the therapy with CpG ODN can be effective for the treatment of minimal residual tumour disease of the tumours that have escaped from the immune surveillance by downmodulating the MHC class I expression.

    Byla analyzována účinnost CpG oligonukleotidů obsahujících dimery guanin-cytidin inhibovat růst rekurencí MHC I negativních myších nádorů asociovaných s HPV16 po chemoterapii nebo po jejich chirugickém odstranění. Podání CpG oligonukleotidů signifikantně inhibovalo růst rekurencí nádorů a lze je proto použít pro terapii nádorů jak MHC I pozitivních, tak i jejich MHC I negativních variant vzniklých v průběhu růstu nádorů vlivem imunoselekčního prostředí.
    Permanent Link: http://hdl.handle.net/11104/0153090

     
     
Number of the records: 1  

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