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1. (WO2015189302) ANTIBODIES DIRECTED AGAINST CD127
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2015/189302 International Application No.: PCT/EP2015/062993
Publication Date: 17.12.2015 International Filing Date: 10.06.2015
IPC:
C07K 16/28 (2006.01) ,A61K 39/00 (2006.01)
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
Applicants:
OSE IMMUNOTHERAPEUTICS [FR/FR]; 22 Boulevard Benoni Goullin 44200 Nantes, FR
Inventors:
POIRIER, Nicolas; FR
MARY, Caroline; FR
VANHOVE, Bernard; FR
Agent:
GUTMANN, Ernest; 3, rue Auber F-75009 Paris, FR
Priority Data:
15305078.623.01.2015EP
62/010,11710.06.2014US
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.
(FR) Cette invention concerne des anticorps dirigés contre CD127, la chaîne alpha du récepteur d'interleukine 7 (IL-7) (IL-7R), et qui ont des propriétés antagonistes vis-à-vis de l'interaction avec IL-7-IL-7R, peuvent manifester une activité cytotoxique contre les cellules positives à CD127 mais n'augmentent pas la maturation des cellules dendritiques (DC) induites par TSLP, une cytokine utilisant également CD127 en tant que partie de son récepteur. En variante, ou en plus, ces anticorps n'induisent pas l'internalisation de CD127 et/ou inhibent l'internalisation de CD127 induite par l'IL-7. Selon un autre aspect, cette invention concerne des anticorps qui reconnaissent un épitope CD127 humain comprenant des séquences provenant du site 2b de CD127, en particulier, l'épitope comprenant les séquences CD127 humaines du domaine D1 et du site 2b de CD127, en particulier l'épitope comprenant au moins une séquence provenant de D1 comprenant SEQ ID No : 115 (en particulier comprenant SEQ ID No :10) et/ou SEQ ID No : 111 et/ou une séquence provenant du site 2b comprenant la séquence de SEQ ID No 116 et éventuellement comprenant également SEQ ID No : 117 (en particulier comprenant SEQ ID No : 111). Les anticorps selon l'invention se prêtent à une utilisation visant à remédier à une affection diagnostiquée chez un patient humain qui résulte de la pathogenèse liée à la lymphopoïèse, quand les voies de signalisation de l'IL-7 contribuent à ladite pathogenèse, notamment quand un accroissement de la maturation, plus précisément la sur-régulation des molécules co-stimulatrices, des cellules dendritiques n'est pas souhaitable.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
UAa201613258SG11201610036PCA2950823AU2015273532EP3155014KR1020170019417
US20170129959IL249449CN106715471VN52585MYPI 2016002094PH1/2016/502445
JP2017522903TH171839IN201617042413BR112016028755TN2016000528EA201692460
RU2016151265CR20160576