Purpose: Our aims are to determine levels of circulating cellular and protein biomarkers in hepatocellular carcinoma (HCC) patients and to analyse any relationships with clinical parameters.
Methods: Fifty-four consenting patients were recruited. Circulating tumour cells (CTCs) were enumerated (by CellSearch) and characterised via filtration [by isolation by size of epithelial tumour cells (ISET)] with downstream immunohistochemistry (IHC).
We have investigated the effect of cloretazine (VNP40101M or Laromustine), a novel sulfonylhydrazine alkylating agent with significant antileukaemic activity, alone, or combined with cytarabine or daunorubicin, on the proliferation, viability and apoptosis of cell lines and acute myeloid leukaemia blast cells in vitro. Cloretazine alone induced a concentration-dependent inhibition of proliferation, reduction in cell viability and an increase in apoptosis in all samples tested. Combinations of cloretazine with varying concentrations of cytarabine or daunorubicin further enhanced these inhibitory effects, suggesting VNP40101M may have a role in combined low dose chemotherapy regimes especially in the elderly.
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