The present invention relates to a process for preparing antibody-drug conjugates and to antibody-drug conjugates wherein therapeutic moieties are conjugated to one or more engineered cysteines as well as to one or more reduced interchain cysteines via a cleavable or non-cleavable linker.

The present application relates to induction of a Treg phenotype in mammalian naïve CD4+ T cells. In certain embodiments, the methods and compositions described can be applied as methods to treat autoimmune disorders or transplant complications (e.g., lupus and graft-versus-host disease) and may be used in combination with, but do not require, systemic immune suppression, such as a chemotherapeutic agent. In particular, embodiments of the disclosure can utilize transforming growth factor-beta 2 (TGFB2), molecules that stimulate the production of TGFB2, inhibitors of molecules that suppress production of TGFB2, or molecules that effect the function of TGFB2 to induce a Treg phenotype in naïve CD4+ T cells from a mammal. Provided herein are embodiments and examples demonstrating the production of Treg cells, as well as the application of Treg cells in modulating the inflammatory response present in certain diseases.

Disclosed herein are anti-Seizure Related 6 Homolog Like 2 (SEZ6L2) antibodies and antibody drug conjugates (ADCs), including compositions and methods of using said antibodies and ADCs.

The disclosure provides stable pharmaceutical compositions comprising an anti-CD79b immunoconjugate and a surfactant. The disclosure also provides methods for using such compositions for the treatment of cancer.

A method for exchange imaging of at least two targets in a sample includes (a) incubating a sample with at least two or more target-recognizing antibodies, each bound to a corresponding monovalent tight antibody binder-docketing moiety (MTAB-DM) reagent capable of binding monovalently to the target-recognizing antibodies, (b) applying at least two imager moieties corresponding to the MTAB-DM, either in series, in batches, or in parallel, and (d) imaging the at least two imager moieties either in series, in batches, or in parallel.

The present disclosure relates to pyrrolobenzodiazepines (PBDs) having a labile C2 or N10 protecting group in the form of a linker to an antibody.

A therapeutic agent comprising a cell binding agent which binds the Receptor for Advanced Glycation End (RAGE) products linked to an anti-cancer drug, for use in the treatment of gynaecological cancer, endometriosis or polycystic ovary syndrome. Novel cell binding agents, pharmaceutical compositions and methods are also described and claimed.

Provided are immunostimulatory bacteria and oncolytic viruses, and pharmaceutical compositions containing the bacteria and/or viruses, that act as three prime repair exonuclease 1 (TREX1) antagonists. The bacteria and viruses are for treating tumors that are human papillomavirus (HPV) positive or that have a high tumor mutational burden (TMB). The immunostimulatory bacteria and oncolytic viruses encode therapeutic products such RNAi, such as shRNA and microRNA, that mediate gene disruption and/or inhibit expression of TREX1, or that inhibit TREX1. The bacteria contain additional modifications to enhance their anti-tumor activity. The bacteria and viruses are used for treatment of tumors in which TREX1 expression correlates with the presence of the tumor or properties of the tumor, such that inhibition of TREX1 advantageously treats the tumor.

The invention generally relates to immunotherapy using immune cells such as chimeric antigen receptor (CAR)-engineered T cells. In particular, the invention relates to immunotherapy using chimeric antigen receptor (CAR)-engineered T cells that carry a novel, IgG3-Hinge-based spacer domain, allowing a finely modulated response to target antigens. In addition, the invention relates to the introduction of one or more IgG3-Hinge-based multi-function sites (MFs) into CARs and other immunoreceptors, allowing purification, stimulation, expansion and depletion of CAR T cells. The invention includes also the sequence of an antibody targeting this motif, allowing the execution of the before-mentioned functions.

The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.