IP Library Granted Patent US 12,240,915
Granted Patent B2
US 12,240,915 · App. 17/270,571 · Granted Mar 4, 2025

Chimeric antigen receptor cells for treating solid tumor

Inventors: Lei Xiao (Rockville, MD); He Sun (Shanghai, CN); Zhiyuan Cao (Shanghai, CN); Wensheng Wang (Shanghai, CN); Chengfei Pu (Shanghai, CN); Li Mao (Shanghai, CN)
Assignees: Innovative Cellular Therapeutics Holdings, Ltd.; Innovative Cellular Therapeutics, Inc.
C07K16/40A61K47/6801A61K47/6869C07K14/7051C07K16/3069C07K2317/622C07K2317/92C07K2319/03
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Quick Facts
Patent No.
US 12,240,915
App. No.
17/270,571
Granted
Mar 4, 2025
Kind
B2
Abstract

The compositions and methods described herein are directed to treating solid tumor using CAR T therapy. The compositions include CAR comprising an extracellular domain that binds a siglec protein or a receptor that binds the peptide hormone kisspeptin.

Claims (23)

1. An antibody that binds ACPP, wherein the antibody comprises

(a) a light chain variable region (LVR) comprising amino acid sequence SEQ ID NO: 82 and a heavy chain variable region (HVR) comprising amino acid sequence SEQ ID NO: 83;

(b) an LVR comprising amino acid sequence SEQ ID NO: 84 and an HVR comprising amino acid sequence SEQ ID NO: 85;

(c) an LVR comprising amino acid sequence SEQ ID NO: 86, and an HVR comprising amino acid sequence SEQ ID NO: 87; or

(d) an LVR comprising amino acid sequence SEQ ID NO: 88 and an HVR comprising amino acid sequence SEQ ID NO: 89.

2. The antibody of claim 1 , wherein the HVR is joined to constant region of a human IgG, and the human IgG is IgG1 or IgG3.

3. The antibody of claim 1 , wherein the antibody is conjugated to a cytotoxic agent, and the cytotoxic agent is a radioactive isotope or a toxin.

4. The antibody of claim 1 , wherein the antibody comprises a scFv, and the LVR is connected to HVR via a linker.

5. The antibody of claim 4 , wherein the scFv comprises amino acid sequence SEQ ID NO: 173.

6. The antibody of claim 4 , wherein the scFv comprises amino acid sequences SEQ ID NOs: 82 and 83 that are joined by a linker.

7. A chimeric antigen receptor (CAR) comprising an antigen binding domain comprising the antibody of claim 5 , wherein the CAR comprises an extracellular domain, a transmembrane domain, and an intracellular domain, the extracellular domain comprising the antigen binding domain.

8. A chimeric antigen receptor (CAR) comprising an antigen binding domain comprising the antibody of claim 1 , wherein the CAR comprises an extracellular domain, a transmembrane domain, and an intracellular domain, the extracellular domain comprising the antigen binding domain.

9. The CAR of claim 7 , wherein the intracellular domain comprises a co-stimulatory signaling region that comprises an intracellular domain of a co-stimulatory molecule, and wherein the co-stimulatory molecule comprises CD27, CD28, 4-1BB, OX40, CD30, CD40, PD-1, ICOS, lymphocyte function-associated antigen-1 (LFA-1), CD2, CD7, LIGHT, NKG2C, B7-H3, or a combination thereof.

10. A modified cell comprising the CAR of claim 7 .

11. The modified cell of claim 10 , wherein the modified cell is a T cell.

12. A polynucleotide that encodes the antibody of claim 5 .

13. A modified cell comprising the polynucleotide of claim 12 .

14. The modified cell of claim 13 , wherein the modified cell is a T cell.

15. The CAR of claim 8 , wherein the intracellular domain comprises a co-stimulatory signaling region that comprises an intracellular domain of a co-stimulatory molecule, and wherein the co-stimulatory molecule comprises CD27, CD28, 4-1BB, OX40, CD30, CD40, PD-1, ICOS, lymphocyte function-associated antigen-1 (LFA-1), CD2, CD7, LIGHT, NKG2C, B7-H3, or a combination thereof.

16. A modified cell comprising the CAR of claim 15 .

17. A polynucleotide encoding the antibody of claim 1 .

18. A modified cell comprising the polynucleotide of claim 17 .

19. The modified cell of claim 18 , wherein the modified cell is a T cell.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 23, 2021
From: XIAO, LEI; SUN, HE; CAO, ZHIYUAN; WANG, WENSHENG; PU, CHENGFEI; MAO, LI
To: INNOVATIVE CELLULAR THERAPEUTICS CO., LTD.; INNOVATIVE CELLULAR THERAPEUTICS, INC.
Reel/Frame 055366/0244 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 23, 2021
From: INNOVATIVE CELLULAR THERAPEUTICS CO., LTD.
To: INNOVATIVE CELLULAR THERAPEUTICS HOLDINGS, LTD.
Reel/Frame 055366/0460 →
Continuity (7)
Provisional Application 62848984 · May 16, 2019
Provisional Application 62842936 · May 3, 2019
Provisional Application 62807482 · Feb 19, 2019
Provisional Application 62754175 · Nov 1, 2018
Provisional Application 62731079 · Sep 13, 2018
Provisional Application 62725025 · Aug 30, 2018
Related Publication 20220348682A1 · Nov 3, 2022
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