0000000000752261

AUTHOR

T. Stoyan

showing 2 related works from this author

Sympathetic neurons can produce and respond to interleukin 6

1998

Neuronal expression of cytokines is an area of active investigation in the contexts of development, disease, and normal neural function. Although cultured rat sympathetic neurons respond very weakly to exogenous interleukin 6 (IL-6), we find that addition of soluble IL-6 receptor (sIL-6R) and IL-6 enhances neuronal survival in the absence of nerve growth factor. Neutralizing monoclonal antibodies against IL-6 block these effects. Addition of IL-6 and sIL-6R also induces a subset of neuropeptide and transmitter synthetic enzyme mRNAs identical to that demonstrated for leukemia inhibitory factor, ciliary neurotrophic factor, and oncostatin M. Both of these effects are duplicated by addition o…

Superior cervical ganglionmedicine.medical_specialtyCell SurvivalRecombinant Fusion ProteinsSuperior Cervical GanglionCiliary neurotrophic factorPC12 CellsRats Sprague-DawleyMiceParacrine signallingContactinsInternal medicinemedicineAnimalsNerve Growth FactorsRNA MessengerInterleukin 6Autocrine signallingNeural Cell Adhesion MoleculesCells CulturedNeuronsMultidisciplinarybiologyInterleukin-6Neuropeptides3T3 CellsBiological SciencesReceptors Interleukin-6RatsCell biologyAutocrine CommunicationNerve growth factorEndocrinologyAnimals Newbornbiology.proteinNeural cell adhesion moleculeLeukemia inhibitory factorCaltech Library ServicesProceedings of the National Academy of Sciences
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Alternative assay procedures for cytokines and soluble receptors of the IL-6 family.

1996

Human hepatoma cells (HepG2 cells) were transfected with expression vectors for human IL-6 (hIL-6) and rat IL-6R (rIL-6-R). The cell lines were used for testing the biological activity of different IL-6 species, soluble hIL-6R (shIL-6R) and some members of the IL-6 cytokine family by means of an ELISA procedure. The assay is based on induction of the gene expression of the acute phase protein haptoglobin in hepatoma cells and provides an alternative bioassay taking advantage of the hepatocyte stimulatory activity of IL-6 (as opposed to the B9 proliferative assay). A dose-response experiment with IL-6 showed that half-maximal stimulation was achieved with approx. 5 ng/ml of hIL-6 in HepG2 ce…

Interleukin-6medicine.medical_treatmentImmunologyAcute-phase proteinGene Transfer TechniquesBiological activityTransfectionReceptors InterleukinBiologyMolecular biologyReceptors Interleukin-6RatsCytokinemedicine.anatomical_structureCell cultureAntigens CDHepatocytemedicineTumor Cells CulturedImmunology and AllergyAnimalsHumansBiological AssayCytokine receptorReceptorJournal of immunological methods
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