Processing

Please wait...

Settings

Settings

1. CA2950823 - ANTIBODIES DIRECTED AGAINST CD127

Office Canada
Application Number 2950823
Application Date
Publication Number 2950823
Publication Date 17.12.2015
Publication Kind A1
IPC
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
K
PEPTIDES
16
Immunoglobulins, e.g. monoclonal or polyclonal antibodies
18
against material from animals or humans
28
against receptors, cell surface antigens or cell surface determinants
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
39
Medicinal preparations containing antigens or antibodies
C CHEMISTRY; METALLURGY
12
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
N
MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICRO-ORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
15
Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
09
Recombinant DNA-technology
11
DNA or RNA fragments; Modified forms thereof
12
Genes encoding animal proteins
13
Immunoglobulins
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
K
PEPTIDES
14
Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
435
from animals; from humans
705
Receptors; Cell surface antigens; Cell surface determinants
715
for cytokines; for lymphokines; for interferons
C07K 16/28
A61K 39/00
C12N 15/13
C07K 14/715
CPC
A61K 2039/505
C07K 16/2866
C07K 2317/24
C07K 2317/34
C07K 2317/732
C07K 2317/76
Applicants OSE IMMUNOTHERAPEUTICS
Priority Data 15305078.6 23.01.2015 EP
62/010,117 10.06.2014 US
Title
(EN) ANTIBODIES DIRECTED AGAINST CD127
(FR) ANTICORPS ANTI-CD127
Abstract
(EN)
The invention relates to antibodies directed against CD127, the alpha chain of the interleukin 7 (IL-7) receptor IL-7R), and which have antagonist properties for IL-7-IL-7R interaction, may present cytotoxic activity against CD127 positive cells but do not increase the maturation of dendritic cells (DCs) induced by TSLP, a cytokine also using CD127 as part of its receptor. Alternatively, or in addition, these antibodies do not induce the internalization of CD127 and/or inhibit the IL7-induced internalization of CD127. According to another aspect of the invention antibodies are provided which recognize a human CD127 epitope comprising sequences from the 2b site of CD127, in particular the epitope comprising comprises the human CD127 sequences of domain D1 and of the 2b site of CD127, in particular the epitope comprises at least one sequence from D1 comprising SEQ ID No: 115 (in particular comprising SEQ ID No: 10) and/or SEQ ID No: 111 and / or a sequence from the 2b site comprising the sequence of SEQ ID No: 116 and optionally also comprises SEQ ID No: 117 (in particular comprises SEQ ID No: 111).The antibodies of the invention are suitable for use inorder to remedy to a condition diagnosed in a human patient which results from pathogenesis related to lymphopoiesis, when IL-7 signalling pathways provide contribution to said pathogenesis, especially when an increase in the maturation, more precisely the upregulation of costimulatory molecules, of dendritic cells is undesirable.