The present disclosure relates generally to immunoglobulin-related compositions (e.g., antibodies or antigen binding fragments thereof) that can bind to the CD3 protein. The antibodies of the present technology are useful in methods for detecting and treating cancer or a CD3 -associated pathology in a subject in need thereof.

The present invention relates to an antibody construct comprising a domain which binds to Claudin 18.2 (CLDN18.2) and another domain which binds to CD3. Moreover, the invention provides a polynucleotide encoding the antibody construct, a vector comprising said polynucleotide and a host cell transformed or transfected with said polynucleotide or vector. Furthermore, the invention provides a process for producing the antibody construct of the invention, a medical use of said antibody construct and a kit comprising said antibody construct.

The present invention relates to therapeutic immunoconjugates comprising SN-38 attached to an antibody or antigen-binding antibody fragment. The antibody may bind to EGP-1 (TROP-2), CEACAM5, CEACAM6, CD74, CD19, CD20, CD22, CSAp, HLA-DR, AFP or MUC5ac and the immunoconjugate may be administered at a dosage of between 4 mg/kg and 24 mg/kg, preferably 4, 6, 8, 9, 10, 12, 16 or 18 mg/kg. When administered at specified dosages and schedules, the immunoconjugate can reduce solid tumors in size, reduce or eliminate metastases and is effective to treat cancers resistant to standard therapies, such as radiation therapy, chemotherapy or immunotherapy.

The present invention provides anti-CLDN18.2 antibody-drug conjugates which are effective for treating and/or preventing cancer diseases associated with cells expressing CLDN18.2, including gastric cancer, esophageal cancer, pancreatic cancer, lung cancer, ovarian cancer, colon cancer, hepatic cancer, head-neck cancer, and cancer of the gallbladder and metastases thereof.

Disclosed are nucleic acid constructs comprising a promoter; a nucleic acid sequence encoding a single-chain variable fragment (scFv); a nucleic acid sequence encoding a notch transmembrane domain; and a nucleic acid sequence encoding a transcription factor. Disclosed are vectors comprising any of the disclosed nucleic acid constructs. Disclosed are proteins comprising a scFv; a notch transmembrane domain; and a transcription activator. Disclosed are methods of increasing human leukocyte antigen class I (HLA-I) on the surface of a tumor cell in a subject comprising administering to the subject one or more of the recombinant cells or compositions comprising a recombinant cell disclosed herein.

Disclosed is a chimeric antigen receptor with improved persistency.

The present invention relates to VEGF-binding agents, DLL4-binding agents, VEGF/DLL4 bispecific binding agents, and methods of using the agents for treating diseases such as cancer. The present invention provides antibodies that specifically bind human VEGF, antibodies that specifically bind human DLL4, and bispecific antibodies that specifically bind human VEGF and/or human DLL4. The present invention further provides methods of using the agents to inhibit tumor growth. Also described are methods of treating cancer comprising administering a therapeutically effect amount of an agent or antibody of the present invention to a patient having a tumor or cancer.

A marker having excellent sensitivity and specificity to pancreatic cancer and intraductal papillary mucinous neoplasms. Also, a kit for diagnosing pancreatic cancer and intraductal papillary mucinous neoplasms to detect the marker, and a method for evaluating a metastasis of a pancreas cancer cell by using the marker. The marker for pancreatic cancer and intraductal papillary mucinous neoplasms according to the present invention comprises one or more proteins selected from the group essentially consisting of secretoglobin, family 1D, member 2 and podocalyxin-like protein. The kit for diagnosing pancreatic cancer and intraductal papillary mucinous neoplasms according comprises an antibody to one or more proteins selected from the group essentially consisting of secretoglobin, family 1D, member 2 and podocalyxin-like protein.

Disclosed is a chimeric antigen receptor with improved persistency.

This disclosure relates to compositions and methods for treating cancer using chimeric antigen receptor T cells targeting glypican 3.