23 Genetic data suggests that IL6 trans-signaling may have a pathogenic role in the lung; however, 24 the effects of IL6 trans-signaling on lung effector cells have not been investigated. In this study, 25 human airway smooth muscle (HASM) cells were treated with IL6 (classical) or IL6+sIL6R 26 (trans-signaling) for 24 h and gene expression measured by RNAseq. Intracellular signaling and 27 tra...

To investigate the role of NF-IL6 in vivo, we have generated NF-IL6 (-/-) mice by gene targeting. NF-IL6 (-/-) mice were highly susceptible to infection by Listeria monocytogenes. Electron microscopic observation revealed the escape of a larger number of pathogens from the phagosome to the cytoplasm in activated macrophages from NF-IL6 (-/-) mice. Furthermore, the tumor cytotoxicity of macropha...

The immunoregulatory cytokine interleukin6 (IL6) acts in a pro- and anti-inflammatory fashion. Synthesized by myeloid cells, fibroblasts and endothelial cells, IL6 on target cells, binds to the IL6 receptor (IL6R) and signals via complex formation with the ubiquitously expressed gp130 receptor. Paradoxically, most cells that respond to IL6 during inflammatory states do not express the IL6R and ...

In vitro as well as in vivo observations have shown that IL6 plays a key role in the pathogenesis of multiple myeloma. Therefore we started a phase I/II dose escalating study with chimeric monoclonal anti-IL6 antibodies (cMab) in multiple myeloma (MM) patients resistant to second-line chemotherapy. Here we describe the pharmacological data as well as a new method for calculating the endogenous ...

Experimental evidence suggests a role for the immune system in the pathophysiology of depression. A specific involvement of the proinflammatory cytokine interleukin 6 (IL6) in both, patients suffering from the disease and pertinent animal models, has been proposed. However, it is not clear how IL6 impinges on neurotransmission and thus contributes to depression. Here we tested the hypothesis th...

to assess the association between polymorphisms of the il-6 -174 g/c and behçet's disease (bd) in tunisian patients. dna was extracted from blood samples taken from 43 tunisian patients and 43 healthy controls. the polymorphisms were analyzed by pcr with the pcr-rflp. no significant association was found between patients and controls concerning polymorphism of il6 -174 g/c between the (allelic ...

Human IL6 is a cytokine produced by many cell types that has pleiotropic effects. In agreement, anti-IL6 therapy reduces inflammation, hepatic acute phase proteins, and anemia and has antiangiogenic effects. Blocking IL6 has demonstrated therapeutic efficacy with drug registration in Castleman disease and inflammatory diseases (rheumatoid arthritis) without major toxicity. Interestingly, the in...

Respiratory syncytial virus (RSV), the most common etiologic agent of epidemic pediatric respiratory disease, infects and replicates in the human airway epithelium, resulting in the induction of cellular gene products essential for immune and inflammatory responses. We describe the effect of RSV infection on nuclear factor-IL6 (NF-IL6) expression, a human basic domain-leucine zipper-containing ...

Elevated levels of the proinflammatory cytokine IL6 are associated with poor survival outcomes in many cancers. Antibodies targeting IL6 and its receptor have been developed for chronic inflammatory disease, but they have not yet been shown to clearly benefit cancer patients, possibly due to antibody potency or the settings in which they have been tested. In this study, we describe the developm...

Background Nutritional disorders are plurifactorial diseases in which the genetic aspects have an important role near the lifestyle and dietary habits. The systemic inflammation and cytokines levels are much studied in the etipatogenity of these diseases. We aimed to assess the relation between IL6-174G/C,IL6-190T/C andIL6-572G/C genes polimorphisms and nutritional status in a group of pediatri...