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Interleukin-6 (IL-6) is produced during bacterial and viral infections and by various malignant tumors. Here, we describe novel immunosuppressive properties of IL-6 in dendritic cells (DC). In the presence of GM-CSF, IL-4, and a maturation stimulus, IL-6 skewed monocyte differentiation into phenotypically mature but functionally impaired DC. In DC matured(More)
Invariant NKT cells (iNKT cells) are innate T lymphocytes that are thought to play an important role in producing an early burst of IFN-γ that promotes successful tumor immunosurveillance and antimicrobial immunity. The cellular activation processes underlying innate IFN-γ production remain poorly understood. We show here that weak T cell receptor (TCR)(More)
This work reports the synthesis and characterization of new heterocyclic chalcone derivatives 3(a–j) and in vitro biological evaluation for antiproliferative, antioxidant, antibacterial, antifungal, and antiviral properties. The antiproliferative efficacy and LC50 of the compounds against HepG2 cell lines were determined. The LC50 for 3d was found to be 8(More)
CD1 molecules are glycoproteins that present lipids and glycolipids for recognition by T cells. CD1-dependent immune activation has been implicated in a wide range of immune responses, however, our understanding of the role of this pathway in human disease remains limited because of species differences between humans and other mammals: whereas humans(More)
A new series of spiro-quinoline compounds have been accomplished by the reaction of barbituric acid or thiobarbituric acid with derivatives of benzisoxazole-5-carbaldehyde or 2-substituted benzaldehyde. These compounds were evaluated for their in vitro cytotoxicity on two mammalian cancer cell lines MCF-7 and KB. The compounds exhibit cytotoxicity against(More)
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