Methods of diagnosis and treatment of m. tuberculosis...

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 14/35 (2006.01) A61K 39/40 (2006.01) C07K 7/08 (2006.01) C07K 16/12 (2006.01) C07K 17/14 (2006.01)

Patent

CA 2638761

The present invention provides isolated M. tuberculosis ribosomal protein S9 (SEQ ID NO: 1) and immunogenic peptide fragments thereof (any one of SEQ ID NOs: 2-7), and antibodies produced against the full-length protein and immunogenic peptide fragments for the diagnosis of M. tuberculosis infection in humans, for example using an antigen-based sandwich ELISA format. The present invention also provides multi-analyte assays in which the S9-based diagnostic assays of the present invention are multiplexed with the detection of immunogenic epitopes from other proteins from M. tuberculosis e.g., epitopes of the BSX protein (any one of SEQ ID NOs: 8-18) and/or glutamine synthetase protein (any one of SEQ ID NOs: 19-22) and/or the detection of antibodies against one or more other M. tuberculosis proteins in humans, uincluding antibodies against BSX and/or glutamine synthetase.

La présente invention concerne une protéine S9 ribosomale de M. tuberculosis isolée (SEQ ID NO: 1) ainsi que des fragments peptidiques immunogènes de cette protéine (l'une quelconque des SEQ ID NO: 2 à 7), et des anticorps produits dirigés contre la protéine entière et des fragments peptidiques immunogènes pour le diagnostic d'une infection à M. tuberculosis chez un sujet humain, par exemple en utilisant un format ELISA sandwich à base d'antigènes. La présente invention concerne également des tests multi-analytes dans lesquels les tests de diagnostic à base de S9 de la présente invention sont multiplexés avec la détection d'épitopes immunogènes d'autres protéines issues de M. tuberculosis, par exemple des épitopes de la protéine BSX (l'une quelconque des SEQ ID NO: 8 à 18) et/ou de la protéine glutamine synthétase (l'une quelconque des SEQ ID NO: 19 à 22) et/ou la détection d'anticorps dirigés contre une ou plusieurs autres protéines deM. tuberculosis chez le sujet humain, y compris des anticorps dirigés contre la BSX et/ou la glutamine synthétase.

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