Anti-E-selectin antibodies, compositions and methods of use
The invention provides antibodies, and antigen-binding fragments thereof, that specifically bind to E-selectin. The invention includes uses, and associated methods of using the antibodies, and antigen-binding fragments thereof.
1. An isolated antibody that specifically binds to human E-selectin, comprising at least one of the following:
(a) a light chain complementarity determining region 1 (LCDR-1) comprising the amino acid sequence of SEQ ID NO:2, a LCDR-2 comprising the amino acid sequence of SEQ ID NO:3, a LCDR-3 comprising the amino acid sequence of SEQ ID NO:4, a heavy chain complementarity determining region 1 (HCDR-1) comprising the amino acid sequence of SEQ ID NO:8, a HCDR-2 comprising the amino acid sequence of SEQ ID NO:9, and a HCDR-3 comprising the amino acid sequence of SEQ ID NO:10;
(b) a heavy chain variable domain (VH) comprising the amino acid sequence of SEQ ID NO:11 and a light chain variable domain (VL) comprising the amino acid sequence of SEQ ID NO:5; and
(c) a heavy chain (HC) comprising the amino acid sequence of SEQ ID NO:7 or SEQ ID NO:13, and a light chain (LC) comprising the amino acid sequence of SEQ ID NO:1.
2. The isolated antibody of claim 1 , wherein the antibody heavy chain isotype is IgG1, wherein the light chain constant region is a kappa light chain, or both.
3. The isolated antibody of claim 1 , wherein the antibody comprises a VH comprising the amino acid sequence of SEQ ID NO:11 and a VL comprising the amino acid sequence of SEQ ID NO:5.
4. The isolated antibody of claim 1 , wherein the antibody binds human E-selectin with a K D of about 60 nM to about 72 nM and wherein the antibody binds cynomolgus monkey E-selectin with a K D of about 63 nM to about 82 nM.
5. The isolated antibody of claim 1 that specifically binds E-selectin and demonstrates at least one detectable characteristic selected from the following:
(i) binds to human E-selectin with a K D of 200 nM or less;
(ii) binds to cynomolgus monkey E-selectin with a K D of 200 nM or less;
(iii) binds with an EC 50 of 50 nM or less to cell-surface expressed E-selectin;
(iv) binds with an EC 50 of 2 nM or less to soluble human E-selectin;
(v) neutralizes binding with an EC 50 of 2 nM or less as measured by AlphaLisa competition assay, of a sialyl-Lewis A ligand to soluble human E-selectin;
(vi) binds with an IC 50 of about 1 nM to about 3 nM to free soluble human E-selectin in human serum;
(vii) neutralizes binding with an IC 50 of 100 nM or less as measured by competition ELISA under static conditions, of a sialyl-Lewis A ligand to soluble human E-selectin;
(viii) neutralizes binding with an IC 50 of 50 nM or less as measured by competition ELISA under static conditions, of a sialyl-Lewis A ligand to cell-surface expressed human E-selectin;
(ix) inhibits adhesion with an IC 50 of 100 nM or less as measured under static conditions, of cells expressing an E-selectin ligand to cell-surface expressed human E-selectin;
(x) inhibits adhesion with an IC 50 of 100 nM or less as measured under physiological flow conditions, of cells expressing an E-selectin ligand to cell-surface expressed human E-selectin;
(xi) inhibits adhesion with an IC 50 of about 6.17 nM to about 18.66 nM as measured under physiologic flow conditions, of blood cells from SCD patients to soluble human E-selectin;
(xii) has a mean half-life of about 14.4 days (345 hours) following IV administration at a dose of 10 mg/kg;
(xiii) has a mean half-life of about 21.5 days (518 hours) following SC administration at a dose of about 3 mg/kg;
(xiv) has a viscosity of 33.4 cP at 185.7 mg/mL when measured at 25° C.;
(xv) exhibits commercially suitable formulation properties, including a high degree of thermal stability and minimal aggregation at high concentration; and
(xvi) exhibits reproducible expression and purity under large-scale manufacturing conditions.
6. A pharmaceutical composition comprising an antibody of claim 1 , and a pharmaceutically acceptable carrier or excipient.
7. The pharmaceutical composition of claim 6 , comprising i) an antibody comprising an antibody HC comprising the amino acid sequence of SEQ ID NO:7 and an antibody LC comprising the amino acid sequence of SEQ ID NO:1, ii) an antibody comprising an antibody HC comprising the amino acid sequence of SEQ ID NO:13 and an antibody LC comprising the amino acid sequence of SEQ ID NO:1, or iii) both.
8. A method of treating a medical condition, disease or disorder mediated by or associated with expression of E-selectin, binding of E-selectin to a ligand, or both, in a subject in need thereof, the method comprising administering a therapeutically effective amount of an antibody of claim 1 that specifically binds to human E-selectin and ameliorates the medical condition, disease or disorder.
9. A method of treating Sickle Cell disease (SCD), in a subject in need thereof, the method comprising administering a therapeutically effective amount of an antibody of claim 1 , that specifically binds to human E-selectin and ameliorates at least one sign or symptom of SCD selected from the group consisting of those affecting the cardiothoracic system, the nervous system, the reticuloendothelial system, the musculoskeletal system, the urogenital system, the gastrointestinal system and a combination thereof.
10. The method of treating SCD in a subject in need thereof of claim 9 , wherein the sign or symptom of SCD affecting the cardiothoracic system includes chronic restrictive lung disease, left ventricular diastolic disease, pulmonary hypertension, acute chest syndrome, dysrhythmias, sudden death, vaso-occlusive crisis (VOC) or a combination thereof.
11. The method of treating SCD in a subject in need thereof of claim 9 , wherein the sign or symptom of SCD affecting the nervous system includes hemorrhagic stroke, venous sinus thrombosis, silent cerebral infarction of the brain, chronic pain, acute ischemic stroke of the brain, proliferative retinopathy, orbital infarction, cognitive impairment or a combination thereof.
12. A method of decreasing an E-selectin biological activity in a subject in need thereof, wherein the method comprises administering a therapeutically effective amount of an antibody of claim 1 , that specifically binds to human E-selectin.
13. A kit for the treatment of SCD, comprising a therapeutically effective amount of an anti-E-selectin antibody of claim 1 .
14. The kit of claim 13 , further comprising a therapeutically effective amount of an at least one additional therapeutically active compound or treatment modality which is effective in ameliorating at least one sign or symptom of SCD.
15. A method of treating SCD in a subject in need thereof, the method comprising administering a therapeutically effective amount of an antibody of claim 1 , that specifically binds to human E-selectin and treats, prevents or ameliorates vaso-occlusive crisis (VOC).
16. An isolated antibody that specifically binds to human E-selectin, comprising:
a VL amino acid sequence comprising a LCDR-1, a LCDR-2 and a LCDR-3 of the amino acid sequence of SEQ ID NO:5; and
a VH amino acid sequence comprising a HCDR-1, a HCDR-2 and a HCDR-3 of the amino acid sequence of SEQ ID NO:11.
17. The isolated antibody of claim 16 , comprising an antibody heavy chain constant region (CH) comprising the amino acid sequence of SEQ ID NO: 15 or SEQ ID NO:16, and an antibody light chain constant region (CL) comprising the amino acid sequence of SEQ ID NO:14.
18. An isolated antibody that specifically binds to human E-selectin, comprising a LC comprising the amino acid sequence of SEQ ID NO:1, and a HC comprising the amino acid sequence of SEQ ID NO:7 or SEQ ID NO:13.
19. An isolated nucleic acid molecule encoding an antibody that specifically binds human E-selectin comprising the amino acid sequence of SEQ ID NO:5 and SEQ ID NO:11.
20. An isolated nucleic acid molecule comprising at least one of the following:
a) the nucleic acid sequence of SEQ ID NO:136 and the nucleic acid sequence of SEQ ID NO:137; and
b) a nucleic acid sequence of SEQ ID NO:138 or SEQ ID NO:206, and the nucleic acid sequence of SEQ ID NO:139.
21. A vector comprising a nucleic acid molecule comprising (a) the nucleic acid sequence of SEQ ID NO:136 and the nucleic acid sequence of SEQ ID NO:137 or (b) the nucleic acid sequence of SEQ ID NO:138 or SEQ ID NO:206, and the nucleic acid sequence of SEQ ID NO:139.
22. A host cell comprising a vector comprising a nucleic acid molecule comprising (a) the nucleic acid sequence of SEQ ID NO:136 and the nucleic acid sequence of SEQ ID NO:137 or (b) the nucleic acid sequence of SEQ ID NO:138 or SEQ ID NO:206, and the nucleic acid sequence of SEQ ID NO:139.
23. The host cell of claim 22 , wherein said host cell is a mammalian cell selected from the group consisting of a CHO cell, a COS cell, a HEK-293 cell, an NS0 cell, an immortalized primary human embryonic retinal cell, or an Sp2.0 cell.
24. A method of making an antibody comprising culturing a host cell under a condition wherein an antibody comprising a VH comprising the amino acid sequence of SEQ ID NO:11 and a VL comprising the amino acid sequence of SEQ ID NO:5 is produced by the host cell.