Summary
Patients with haematological malignancies carry increased risk of venous thrombosis
(VT). However, the mechanisms that link these malignancies to activated coagulation
have not been fully identified. Since anti-haemostatic agents are studied in clinical
trials for their potential to prolong survival in cancer patients, a detailed characterisation
of haemostatic markers in cancer subtypes is needed. Hence, in this study, we measured
the plasma concentrations and mRNA expression in blood mononuclear cells of haemostatic
parameters in 93 patients with haematological neoplasias (acute myeloid leukaemia,
chronic lymphatic leukaemia, multiple myeloma, and non-Hodgkin’s lymphoma) before
start and after completion of cancer therapy. At diagnosis we found activation of
coagulation and fibrinolysis, especially in patients with acute myeloid leukaemia.
This hypercoagulation was not associated with increased levels of tissue factor (TF)
or factor VII (fVII) antigen or mRNA, or levels of activated fVII. In conclusion we
found a hypercoagulable state in patients with haematological malignancy that did
not seem to be initiated by TF.
Keywords
Coagulation - leukaemia - lymphoma - myeloma - tissue factor