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BCR-ABL activity measured by 50% inhibitory concentration for imatinib, p-CrkL/CrkL ratio or p-CrkL ratio in CD34+ cells of patients with chronic myeloid leukemia does not predict treatment response.

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ŠIMARA Pavel PETERKOVÁ Martina STEJSKAL Stanislav POTĚŠILOVÁ Michaela KRONTORÁD KOUTNÁ Irena RÁČIL Zdeněk RÁZGA Filip JURČEK Tomáš DVOŘÁKOVÁ Dana MAYER Jiří

Druh Článek v odborném periodiku
Časopis / Zdroj Leukemia & lymphoma
Fakulta / Pracoviště MU

Lékařská fakulta Středisko pro pomoc studentům se specifickými nároky Středoevropský technologický institut

Citace
WWW http://www.ncbi.nlm.nih.gov/pubmed/22233112
Doi http://dx.doi.org/10.3109/10428194.2012.656104
Obor Onkologie a hematologie
Klíčová slova p-CrkL; chronic myeloid leukemia; imatinib
Popis In this study, we assessed BCR-ABL kinase activity by measuring the protein levels of CrkL and its phosphorylated form (p-CrkL) in order to predict the clinical outcome of newly diagnosed chronic myeloid leukemia patients. CD34+ cells from these patients were collected before the start of imatinib therapy and treated in vitro with imatinib. The reduction of p-CrkL and CrkL protein levels was then measured by flow cytometry. The data were processed using three independent approaches: an assessment of a) IC50imatinib, b) p-CrkL/CrkL ratio, and c) p-CrkL ratio. The results were subsequently correlated with the clinical response of patients after 3 and 6 months of imatinib therapy. None of the three p-CrkL parameters measured in CD34+ cells was found to be predictive of clinical outcome.
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