Journal
CLINICAL CHEMISTRY AND LABORATORY MEDICINE
Volume 43, Issue 2, Pages 146-150Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1515/CCLM.2005.024
Keywords
hematopoietic cytokines; pancreatic cancer
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Hematopoietic cytokines (HCs) can affect the growth and spread of cancer. Therefore, in the present study, we investigated in pancreatic cancer patients the serum levels of selected HCs, such as stem cell factor (SCIF), interleukin 3 (IL-3), granulocyte-macrophage-colony stimulating factor (GM-CSF), granulocyte-colony stimulating factor (G-CSF) and macrophage-colony stimulating factor (M-CSF) in relation to a control group and to a group of patients with chronic pancreatitis. Classical tumor markers such as carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA 19-9) were also tested. We compared the serum level of cytokines with the tumor stage. The diagnostic sensitivity, specificity, positive and negative predictive values and receiver-operating characteristics (ROC) curve for cytokines and classical tumor markers were defined. The cytokines were measured in 48 patients with pancreatic cancer, in 23 patients with chronic pancreatitis and in 40 healthy subjects. HCs were determined using ELISA. CEA and CA 19-9 were measured by microparticle enzyme immunoassay. There were significant differences in the levels of circulating SCIF, IL-3, GM-CSF, M-CSF, CEA and CA 19-9 in the pancreatic cancer patients compared to the control group. The serum levels of M-CSF and tumor markers were significantly higher in pancreatic cancer patients compared to the pancreatitis group. The levels of SCF, M-CSF and tumor markers were higher in patients with a more advanced tumor stage. The M-CSF serum levels in the pancreatitis group correlated positively with the tumor markers tested -CEA and CA 19-9. The diagnostic sensitivity of SCF and specificity of M-CSF and tumor markers were the highest. The SCF and M-CSF areas under the ROC curve were greater than the areas for other cytokines. These results suggest the potential usefulness of HCs in pancreatic cancer detection; however, further investigations of early-stage pancreatic cancer patients and confirmation by a prospective study are necessary.
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