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    Specific demonstration of drug-induced tumour cell apoptosis in human xenografts models using a plasma biomarker.

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    Authors
    Olofsson, M Hägg
    Cummings, Jeffrey
    Fayad, W
    Brnjic, S
    Herrmann, R
    Berndtsson, M
    Hodgkinson, Cassandra L
    Dean, Emma J
    Odedra, Rajesh
    Wilkinson, Robert W
    Mundt, Kirsten E
    Busk, M
    Dive, Caroline
    Linder, S
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    Affiliation
    Cancer Center Karolinska, Department of Oncology and Pathology, Karolinska Institute and Hospital, Stockholm, Sweden.
    Issue Date
    2009
    
    Metadata
    Show full item record
    Abstract
    Pharmacodynamic (PD) assays should be used before advancing new drugs to clinical trials. Most PD assays measure the response to drugs in tissue, a procedure which requires tissue biopsies. The M30-Apoptosense ELISA is a PD biomarker assay for the quantitative determination of caspase-cleaved cytokeratin 18 (CK18) released from apoptotic carcinoma cells into blood. We here demonstrate that whereas the M30-Apoptosense ELISA assay detects human caspase-cleaved CK18, the mouse and rat CK18 caspase cleavage products are detected with low affinity. The M30-Apoptosense ELISA therefore facilitates the determination of drug-induced apoptosis in human tumour xenografts in rodents using plasma samples, largely independently from host toxicity. Increases of caspase-cleaved CK18 were observed in plasma from different carcinoma xenograft models in response to anticancer drugs. The appearance caspase-cleaved CK18 in plasma was found to reflect formation of the caspase-cleaved epitope in FaDu head-neck carcinomas and in cultured cells. The M30-Apoptosense assay allows determination of tumour response in blood from xenograft models and from patients, providing a powerful tool for translational studies of anticancer drugs.
    Citation
    Specific demonstration of drug-induced tumour cell apoptosis in human xenografts models using a plasma biomarker. 2009, 5 (3):117-25 Cancer Biomark
    Journal
    Cancer Biomarkers
    URI
    http://hdl.handle.net/10541/85221
    DOI
    10.3233/CBM-2009-0597
    PubMed ID
    19407366
    Type
    Article
    Language
    en
    ISSN
    1574-0153
    ae974a485f413a2113503eed53cd6c53
    10.3233/CBM-2009-0597
    Scopus Count
    Collections
    All Paterson Institute for Cancer Research
    Clinical and Experimental Pharmacology Group

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