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APIM-peptide targeting PCNA improves the efficacy of docetaxel treatment in the TRAMP mouse model of prostate cancer

Søgaard, Caroline K ; Moestue, Siver A ; Rye, Morten B ; Kim, Jana ; Nepal, Anala ; Liabakk, Nina-Beate ; Bachke, Siri ; Bathen, Tone F ; Otterlei, Marit ; Hill, Deborah K

Oncotarget, 2018-02, Vol.9 (14), p.11752-11766

United States: Impact Journals LLC

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  • Título:
    APIM-peptide targeting PCNA improves the efficacy of docetaxel treatment in the TRAMP mouse model of prostate cancer
  • Autor: Søgaard, Caroline K ; Moestue, Siver A ; Rye, Morten B ; Kim, Jana ; Nepal, Anala ; Liabakk, Nina-Beate ; Bachke, Siri ; Bathen, Tone F ; Otterlei, Marit ; Hill, Deborah K
  • Assuntos: Research Paper
  • É parte de: Oncotarget, 2018-02, Vol.9 (14), p.11752-11766
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Docetaxel is the chemotherapeutic choice for metastatic hormone-refractory prostate cancer, however, it only marginally improves the survival rate. The purpose of the present study was to examine if a peptide targeting the cellular scaffold protein PCNA could improve docetaxel's efficacy. We found that docetaxel given in combination with a cell penetrating peptide containing the AlkB homolog 2 PCNA interacting motif (APIM-peptide), reduced the prostate volume and limited prostate cancer regrowth in the immunocompetent transgenic adenocarcinoma model of prostate cancer (TRAMP). In accordance with this, we found that the APIM-peptide enhanced the efficacy of docetaxel . Gene expression analysis on prostate cancer cell lines indicated that the combination of docetaxel and APIM-peptide alters expression of genes involved in cellular signaling, apoptosis, and prostate cancer development. These changes were not detected in single agent treated cells. Our results suggest that targeting PCNA and thereby affecting multiple cellular pathways simultaneously has the potential to improve docetaxel therapy of advanced prostate cancer.
  • Editor: United States: Impact Journals LLC
  • Idioma: Inglês
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