TGF-ß1 specific antibodies and methods and uses thereof
Specific binding members, particularly antibodies and fragments thereof, which bind to transforming growth factor beta 1 (TGF-β1) are provided, particularly recognizing human and mouse TGF-β1 and not recognizing or binding TGF-β2 or TGF-β3. Particular antibodies are provided which specifically recognize and neutralize TGF-β1. These antibodies are useful in the diagnosis and treatment of conditions associated with activated or elevated TGF-β1, including cancer, and for modulating immune cells and immune response, including immune response to cancer or cancer antigens. The anti-TGF-β1 antibodies, variable regions or CDR domain sequences thereof, and fragments thereof may also be used in therapy in combination with chemotherapeutics, immune modulators, or anti-cancer agents and/or with other antibodies or fragments thereof. Antibodies of this type are exemplified by the novel antibodies hereof, including antibody 13A1, whose sequences are provided herein.
1. A method of neutralizing transforming growth factor beta 1 (TGF-(β1) in a patient with cancer comprising administering to said patient an effective amount of an antibody molecule or fragment thereof which recognizes human and mouse TGF-β1 and does not react with TGF-β2 and does not react with TGF-β3, wherein the antibody or fragment neutralizes activity of TGF-β1, and is an antibody or fragment comprising a heavy chain variable region comprising CDR domain sequences CDR1 GYTFTNYW (SEQ ID NO: 11), CDR2 IYPGNSDT (SEQ ID NO: 12) and CDR3 EDSRSLYYNGWDYFDY (SEQ ID NO: 5) or comprising CDR domain sequences CDR1 GYTFTNYWMH (SEQ ID NO: 3), CDR2 TIYPGNSDTN (SEQ ID NO: 4) and CDR3 EDSRSLYYNGWDYFDY (SEQ ID NO: 5), and a light chain variable region comprising CDR domain sequences CDR1 ESVDNYGISF (SEQ ID NO: 6), CDR2 YAAS (SEQ ID NO: 7) and CDR3 QQSKEVPRT (SEQ ID NO: 8).
2. The method of claim 1 wherein the antibody or antibody fragment comprises a heavy chain variable region amino acid sequence SEQ ID NO:1 and a light chain variable region amino acid sequence SEQ ID NO:2.
3. The method of claim 1 wherein the antibody or antibody fragment comprises a heavy chain variable region comprising CDR domain sequences CDR1 GYTFTNYW (SEQ ID NO: 11), CDR2 IYPGNSDT (SEQ ID NO: 12) and CDR3 EDSRSLYYNGWDYFDY (SEQ ID NO: 5) and a light chain variable region comprising CDR domain sequences CDR1 ESVDNYGISF (SEQ ID NO: 6), CDR2 YAAS (SEQ ID NO: 7) and CDR3 QQSKEVPRT (SEQ ID NO: 8).
4. The method of claim 1 wherein the antibody or antibody fragment comprises a heavy chain variable region comprising CDR domain sequences CDR1 GYTFTNYWMH (SEQ ID NO: 3), CDR2 TIYPGNSDTN (SEQ ID NO: 4) and CDR3 EDSRSLYYNGWDYFDY (SEQ ID NO: 5) and a light chain variable region comprising CDR domain sequences CDR1 ESVDNYGISF (SEQ ID NO: 6), CDR2 YAAS (SEQ ID NO: 7) and CDR3 QQSKEVPRT (SEQ ID NO: 8).
5. The method of claim 1 wherein the antibody or antibody fragment comprises a heavy chain variable region amino acid sequence selected from the amino acid sequence SEQ ID NO: 1 and variants thereof having at least 90% amino acid identity to SEQ ID NO:1.
6. The method of claim 1 wherein the antibody or antibody fragment comprises a light chain variable region comprising an amino acid sequence selected from the amino acid sequence as set out in SEQ ID NO: 2 and variants thereof having at least 90% amino acid identity to SEQ ID NO:2.
7. The method of claim 1 wherein the antibody or antibody fragment is an antibody or fragment thereof wherein said antibody is the form of an antibody F(ab′)2, scFv fragment, minibody, diabody, triabody or tetrabody.
8. The method of claim 1 wherein the antibody or antibody fragment further comprises a detectable or functional label.
9. The method of claim 8 , wherein said detectable or functional label is a covalently attached chemotherapeutic drug or toxin.
10. The method of claim 8 , wherein said label is a radiolabel.
11. The method of claim 1 which comprises further administering one or more other agents or therapeutics, wherein the other agents or therapeutics are selected from anti-cancer agents, anti-mitotic agents, apoptotic agents, immunomodulatory antibodies and anti-tumor antigen antibodies.
12. The method of claim 11 wherein the anti-cancer agents are selected from tyrosine kinase inhibitors and cell growth or division inhibitors.
13. The method of claim 1 wherein the cancer is selected from fibrosarcoma, colon cancer, breast cancer, prostate cancer, lung cancer and melanoma.
14. The method of claim 1 wherein the administering of an antibody molecule or fragment thereof is combined with radiation therapy.