Sökning: "Sigurd Vitols"

Hittade 5 avhandlingar innehållade orden Sigurd Vitols.

  1. 1. Microphysiometry in the evaluation of cytotoxic drugs with special emphasis on the novel cyanoguanidine CHS 828

    Författare :Sara Ekelund; Sigurd Vitols; Uppsala universitet; []
    Nyckelord :Medical sciences; Cytotoxic drug development; Cytosensor microphysiometer; cellular metabolism; CHS 828; guanidino-containing compound; MEDICIN OCH VÅRD; MEDICINE; MEDICIN; klinisk farmakologi; Clinical Pharmacology;

    Sammanfattning : This thesis describes the use of a new technology, the Cytosensor® microphysiometer, in the in vitro evaluation of cytotoxic drugs, using the lymphoma cell line U-937 GTB and primary cultures of tumour cells from patients as model systems. The method was specifically applied to study the metabolic effects of the novel cyanoguanidine N-(6-(4-chlorophenoxy)hexyl)-N’-cyano-N’’-4-pyridylguanidine, CHS 828, currently in phase I/II clinical trials. LÄS MER

  2. 2. Integrating Efficacy and Toxicity in Preclinical Anticancer Drug Development : Methods and Applications

    Författare :Caroline Haglund; Elin Lindhagen; Rolf Larsson; Anna Åleskog; Sigurd Vitols; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Anticancer drugs; In vitro assays; Toxicity testing; Haematological toxicity; Primary tumour cells; Species difference; Clinical pharmacology; Klinisk farmakologi; Clinical Pharmacology; Klinisk farmakologi;

    Sammanfattning : Preclinical testing is an important part of cancer drug development. The aim of this thesis was to establish and evaluate preclinical in vitro methods useful in the development of new anticancer drugs. In paper I, the development of non-clonogenic assays (FMCA-GM) using CD34+ stem cells for assessment of haematological toxicity was described. LÄS MER

  3. 3. Preclinical and Clinical Development of the Novel Cyanoguanidine CHS 828 for Cancer Treatment

    Författare :Peter Hovstadius; Rolf Larsson; Elin Lindhagen; Martin Höglund; Sigurd Vitols; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Clinical drug development; CHS 828; Cyanoguanidines; Oncology; Clinical Drug Development; Klinisk läkemedelsutveckling; Pharmaceutical chemistry; Läkemedelskemi;

    Sammanfattning : CHS 828 is a cyanoguanidine with anti-tumour properties which has shown promising effects in several preclinical models. This thesis describes both preclinical and clinical studies aiming to investigate disease specific activity, clinical tolerability and efficacy of CHS 828. LÄS MER

  4. 4. Drug Repositioning for Cancer Treatment : Novel Candidate Identification Strategies

    Författare :Madiha Nazir; Mårten Fryknäs; Sigurd Vitols; Uppsala universitet; []
    Nyckelord :cancer treatment; drug repositioning; Phosphodiesterase 3A PDE3A ; apoptosis; combination screening;

    Sammanfattning : Regardless of the enormous investments in cancer research and drug development, the proportion of approved drugs in oncology is low compared to other indications, and new avenues are needed. One attractive approach in this regard is drug repositioning where new uses outside the scope of the original medical indications for existing drugs are identified. LÄS MER

  5. 5. Anticancer Activity of Melflufen : Preclinical Studies of a Novel Peptidase-Potentiated Alkylator

    Författare :Sara Strese; Joachim Gullbo; Rolf Larsson; Mårten Fryknäs; Sigurd Vitols; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; cancertherapy; preclinical studies; melflufen; aminopeptidase-potentiated; cancer; angiogenesis; Klinisk farmakologi; Clinical Pharmacology;

    Sammanfattning : Melflufen (melphalan flufenamide, chemical name L-melphalanyl-p-L-fluorophenylalanine ethyl ester hydrochloride, previously called J1) is a derivative of the classical alkylating agent melphalan. Melflufen is potentiated by hydrolytic cleavage by aminopeptidase N (APN), leading to high intracellular concentrations of alkylating moieties and subsequent cell death. LÄS MER