OSE-127   Click here for help

GtoPdb Ligand ID: 9604

Synonyms: Effi-7
Immunopharmacology Ligand
Compound class: Antibody
Comment: OSE-127 is a humanised monolonal antibody targeting the α subunit of the IL-7 receptor (IL-7RA, or CD127). It is in preclinical development in autoimmune diseases, transplant rejection and immuno-oncology. It is likely one of the candidates claimed in patent WO2015189302 [2].
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Bioactivity Comments
Based on our assumption that OSE-127 is claimed in WO2015189302 [2], we have chosen one of the humanised antibodies disclosed therein (N13B2-h3) to calculate an approximate binding EC50 value, using an average molecular weight of 150kDa for the antibody (data provided in the patent is in ng/ml).

OSE-127 acts as a functional antagonist of the IL-7/IL-7Rα interaction, blocking heterodimer formation of the IL-7Rα/IL-2Rγ signalling competent complex, preventing internalisation of the bound receptor and blocking downstream activation of T cells and production of IFNγ.
Selectivity at catalytic receptors
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
Interleukin-7 receptor subunit α Primary target of this compound Hs Antibody Antagonist ~11.4 pEC50 - 2
pEC50 ~11.4 (EC50 ~4x10-12 M) [2]
Description: In an ELISA binding assay.