6533b82cfe1ef96bd128ecd3

RESEARCH PRODUCT

A novel and rapid prediction assay for the effectiveness of IL-6 receptor specific antisense oligonucleotides by proliferation inhibition of an interleukin-6 dependent cell line.

Stefan Rose JohnAndrás FalusKristóf A. FülöpValeria Lia VargaSára TóthÉVa PállingerIstván Novák

subject

Time FactorsCellBiologyCell LineSubstrate SpecificitySense (molecular biology)medicineHumansReceptorInterleukin 6Base SequenceInterleukin-6Cell BiologyGeneral MedicineTransfectionOligonucleotides AntisenseGlycoprotein 130Flow CytometryMolecular biologyReceptors Interleukin-6medicine.anatomical_structureCell cultureInterleukin-6 receptorbiology.proteinCell DivisionSignal Transduction

description

Interleukin-6 (IL-6) belongs to a family of cytokines that use receptors consisting of a common signal-transducing chain (gp130). Baf/3 cells transfected with the human IL-6 receptor (IL-6R) and gp130 (Baf/3-gp130/IL-6R) can only grow in medium containing IL-6. We attempted to interrupt the signal transducing pathway of IL-6 with the help of antisense oligonucleotides (ASOs) designed against the IL-6R. We used 18 different kinds of antisense oligonucleotides of overlapping sequences around the translational start codon of the human IL-6R. Sense ASOs were used as a control. The proliferation of cells was analysed by H-thymidine incorporation. Cell surface expression of the IL-6R was assessed by FACS analysis. We identified three ASOs which strongly inhibited the proliferation of IL-6 dependent transfected Baf/3 cells. Flow cytometric studies on the suppression of surface expression of IL-6R by ASOs showed a similar pattern. These results should help to clarify the structural requirements of functionally effective ASOs in the inhibition of IL-6R.

10.1006/cbir.2000.0599https://pubmed.ncbi.nlm.nih.gov/11352498