Choriocarcinoma cells modulate the cytokine production of decidual large granular lymphocytes in coculture

PROBLEM: How do major histocompatibility complex (MHC) I positive/negative choriocarcinoma (CC) cells affect the production of tumor necrosis factor-a lpha TNF-alpha). interferon-gamma (IFN-gamma), interleukin-10 (IL-10), inte rleukin-4 (IL-4), and granulocyte-macrophage colony-stimulating factor (GM- CSF) by decidual CD56(+) (+) cells (large granular lymphocytes [LGL]), LGL- depleted decidual cells (WASH) and unseparated decidual cells (DEC) in cocu ltures? METHOD OF STUDY: Decidual tissue was obtained by legal abortions. CD 56 (+) LGL were isolated in a magnetic cell separator. Cytokines were measured by ELISA. Differences were analyzed for significance by Wilcoxons test. RESULTS: We found a significant increase of IL-10 in LGL/JEG-3 and of TNF-a lpha in LGL/JAR cocultures compared to noncocultured decidual cells. There was a significant increase of IL-10 and TNF-a and a significant decrease of GM-CSF in WASH and DEC cocultures with both JEG-3 and JAR. IFN-gamma was o nly found in 3/11 cases of LGL/JAR cocultures. No IL-4 was found in any exp eriment. CONCLUSION: MHC class I positive/negative CC modulate the cytokine producti on of decidual LGL in different ways.