Antibodies to Plasminogen Activator Inhibitor-1 (PAI-1) and Uses Thereof

Patent metadata

Field	Value
Publication number	US-2016200831-A1
Application number	US-201414911429-A
Country	US
Kind code	A1
Filing date	Aug 13, 2014
Priority date	Aug 13, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

The invention provides antibodies that specifically bind to Plasminogen Activator Inhibitor type-1 (PAI-1), The invention also provides pharmaceutical compositions, as well as nucleic acids encoding anti-PAI-1 antibodies, recombinant expression vectors and host cells for making such antibodies, or fragments thereof. Methods of using antibodies to modulate PAI-1 activity or detect PAI-1, either in vitro or in vivo, are also provided. The disclosure further provides methods of making antibodies that specifically bind to PAI-1 in the active conformational state.

First claim

What is claimed is:

1 . An isolated monoclonal antibody that binds specifically to PAI-1, comprising:
(a) a heavy chain framework region and a heavy chain variable region, the heavy chain variable region comprising a heavy chain CDR1 region comprising SEQ ID NO: 34, a heavy chain CDR2 region comprising SEQ ID NO: 33, and a heavy chain CDR3 region comprising SEQ ID NO: 32; and (b) a light chain framework region and a light chain variable region, the light chain variable region comprising a light chain CDR1 region comprising SEQ ID NO: 37, a light chain CDR2 region comprising SEQ ID NO: 145, and a light chain CDR3 region comprising SEQ ID NO: 35.

2 . An isolated monoclonal antibody that binds specifically to PAI-1 comprising:
(a) a heavy chain framework region and a heavy chain variable region comprising SEQ ID NO: 86, and (b) a light chain framework region and a light chain variable region comprising SEQ ID NO: 93.

3 . An isolated monoclonal antibody that binds specifically to PAI-1 comprising:
(a) a heavy chain variable region that is at least 95% identical to the heavy chain variable region of the antibody of claim 2 , and/or (b) a light chain variable region that is at least 95% identical to the light chain variable region of the antibody of claim 2 .

4 . An isolated monoclonal antibody that binds to essentially the same epitope as the antibody of claim 1 .

5 . An isolated monoclonal antibody that binds specifically to PAI-1, comprising:
(a) a heavy chain framework region and a heavy chain variable region, the heavy chain variable region comprising a heavy chain CDR1 region comprising SEQ ID NO: 34, a heavy chain CDR2 region comprising SEQ ID NO: 33, and a heavy chain CDR3 region comprising SEQ ID NO: 32; and (b) a light chain framework region and a light chain variable region, the light chain variable region comprising a light chain CDR1 region comprising SEQ ID NO: 37, a light chain CDR2 region comprising SEQ ID NO: 36, and a light chain CDR3 region comprising SEQ ID NO: 35.

6 . The antibody of claim 5 , wherein the heavy chain variable region comprises SEQ ID NO: 6, and the light chain variable region comprises SEQ ID NO: 7.

7 . An isolated monoclonal antibody that binds to essentially the same epitope as the antibody of claim 5 .

8 . A humanized monoclonal antibody that binds specifically to human PAI-1, wherein the antibody comprises:
(a) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 82, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 91, or an antigen-binding fragment thereof; (b) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 83, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 92, or an antigen binding fragment thereof; (c) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 84, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 93, or an antigen-binding fragment thereof; (d) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 85, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 91, or an antigen-binding fragment thereof; (e) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 85, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 93, or an antigen-binding fragment thereof; (f) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 86, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 94, or an antigen-binding fragment thereof; (g) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 87, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 95, or an antigen-binding fragment thereof; (h) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 88, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 96, or an antigen-binding fragment thereof; (i) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 89, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 97, or an antigen-binding fragment thereof; (j) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 90, or an antigen-binding fragment thereof, and a light chain having, a light chain variable region comprising SEQ ID NO: 98, or an antigen-binding fragment thereof; (l) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 86, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 95, or an antigen-binding fragment thereof; (m) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 89, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 93, or an antigen-binding fragment thereof; or (n) a heavy chain having a heavy chain variable region comprising SEQ ID NO: 89, or an antigen-binding fragment thereof, and a light chain having a light chain variable region comprising SEQ ID NO: 95, or an antigen-binding fragment thereof.

9 . An isolated monoclonal antibody that binds specifically to PAI-1, comprising
(a) a heavy chain variable region comprising a heavy chain CDR1 region comprising SEQ ID NO: 22, a heavy chain CDR2 region comprising SEQ ID NO: 21, and a heavy chain CDR3 region comprising SEQ ID NO: 20; and a light chain variable region comprising a light chain CDR1 region comprising SEQ ID NO: 25, a light chain CDR2 region comprising SEQ ID NO: 24, and a light chain CDR3 region comprising SEQ ID NO: 23, (b) a heavy chain variable region comprising a heavy chain CDR1 region comprising SEQ ID NO: 28, a heavy chain CDR2 region comprising SEQ ID NO: 27, and a heavy chain CDR3 region comprising SEQ ID NO: 26; and a light chain variable region comprising a light chain CDR1 region comprising SEQ ID NO: 31, a light chain CDR2 region comprising SEQ ID NO: 30, and a light chain CDR3 region comprising SEQ ID NO: 29, (c) a heavy chain variable region comprising a heavy chain CDR1 region comprising SEQ ID NO: 40, a heavy chain CDR2 region comprising SEQ ID NO: 39, and a heavy chain CDR3 region comprising SEQ ID NO: 38; and a light chain variable region comprising a light chain CDR1 region comprising SEQ ID NO: 43, a light chain CDR2 region comprising SEQ ID NO: 42, and a light chain CDR3 region comprising SEQ ID NO: 41, (d) a heavy chain variable region comprising a heavy chain CDR1 region comprising SEQ ID NO: 46, a heavy chain CDR2 region comprising SEQ ID NO: 45, and a heavy chain CDR3 region comprising SEQ ID NO: 44; and a light chain variable region comprising a light chain CDR1 region comprising SEQ ID NO: 49, a light chain CDR2 region comprising SEQ ID NO: 48, and a light chain CDR3 region comprising SEQ ID NO: 47, (e) a heavy chain variable region comprising a heavy chain CDR1 region comprising SEQ ID NO: 52, a heavy chain CDR2 region comprising SEQ ID NO: 51, and a heavy chain CDR3 region comprising SEQ ID NO: 50; and a light chain variable region comprising a light chain CDR1 region comprising SEQ ID NO: 55, a light chain CDR2 region comprising SEQ ID NO: 54, and a light chain CDR3 region comprising SEQ ID NO: 53, (f) a heavy chain variable region comprising a heavy chain CDR1 region comprisin

Assignees

• Sanofi Sa

Inventors

• Pritsker Alla
• Grailhe Patrick
• Rak Alexey
• Mathieu Magali
• Morgan Christopher Ryan
• Baurin Nicolas
• Poirer Bruno
• Daveu Cyril
• Duffieux Francis
• Li Han
• KOMINOS Dorothea
• Janiak Philip

Classifications

• A61P9/10

  for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis · CPC title

• A61P7/02

  Antithrombotic agents; Anticoagulants; Platelet aggregation inhibitors · CPC title

• A61P13/12

  of the kidneys · CPC title

• A61P17/00

  Drugs for dermatological disorders · CPC title

• A61P1/16

  for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics · CPC title