Antibody drug conjugates (ADC's) that bind to 158P1D7 protein and variants thereof are described herein. 158P1D7 exhibits tissue specific expression in normal adult tissue, and is aberrantly expressed in glioblastoma, lung cancer, bladder cancer, and breast cancer. Consequently, the ADC's of the invention provide a therapeutic composition for the treatment of cancer.

The present invention relates to a modified IgG4 Fc fragment useful as a drug carrier. When the modified IgG4 Fc fragment of the present invention is combined with an arbitrary drug, the resulting drug conjugate can minimize the effector functions of the IgG4 Fc and the chain exchange with in vivo IgG while maintaining in vivo activity and improving in vivo duration of the drug conjugate.

The present invention provides, among other things, methods of treating post-cardiac injury syndrome (PCIS) or pericarditis, comprising a step of administering to a subject in need of treatment an interleukin-1 receptor-Fc fusion protein at a therapeutically effective dose and an administration interval for a treatment period sufficient to improve, stabilize or reduce one or more signs and symptoms of pericarditis relative to a control.

The invention relates to a novel antibody capable of binding specifically to the human c-Met receptor and/or capable of specifically inhibiting the tyrosine kinase activity of said receptor, with an improved antagonistic activity, said antibody comprising a modified hinge region.

The invention also relates to a composition comprising such an antibody antagonist to c-Met and its use as a medicament for treating cancer.

Provided herein are compositions and methods for inducing cell death in a regulated manner, for example in a safety switch system. Inducible cell death can be triggered by ligand binding to a one or more ligand binding domains. Cell death can include induction of apoptosis.

A process for preparing a glycoprotein-conjugate is provided, comprising: (a) providing an N-glycoprotein having an exposed tyrosine residue, wherein the exposed tyrosine residue is located within 10 amino acids of an N-glycosylation site, but the N-glycosylation site has been modified such that the glycoprotein does not contain a glycan longer than two monosaccharide residues within 10 amino acids of the exposed tyrosine residue; (b) converting the phenol moiety of the exposed tyrosine residue into an ortho-quinone moiety by contacting the glycoprotein with an oxidative enzyme capable of oxidizing tyrosine; and (c) reacting the ortho-quinone moiety with an alkene or alkyne compound via a [4+2] cycloaddition, wherein the compound comprises a (hetero)cycloalkene or (hetero)cycloalkyne moiety and (i) a chemical handle to further modify the compound with a payload, or (ii) a payload. The resulting glycoprotein-conjugates and pharmaceutical compositions and methods of treatment comprising same are also disclosed.

The present invention relates to novel stabilized IgG4 antibodies, to methods of producing such antibodies and to uses of such antibodies as a medicament. In a main aspect, the invention relates to a stabilized IgG4 antibody, comprising a heavy chain and a light chain, wherein said heavy chain comprises a human IgG4 constant region having a substitution of the Arg residue at position (409), the Phe residue at position (405) or the Lys residue at position (370).

This disclosure relates to a modified -helical bundle cytokine, with reduced activity via an -helical bundle cytokine receptor, wherein the -helical bundle cytokine is specifically delivered to target cells. Preferably, the -helical bundle cytokine is a mutant, more preferably it is a mutant interferon, with low affinity to the interferon receptor, wherein the mutant interferon is specifically delivered to target cells. The targeting is realized by fusion of the modified -helical bundle cytokine to a targeting moiety, preferably an antibody. This disclosure relates further to the use of such targeted modified -helical bundle cytokine to treat diseases. A preferred embodiment is the use of a targeted mutant interferon, to treat diseases, preferably viral diseases and tumors.

A modified IgG4 Fc fragment useful as a drug carrier is disclosed. When coupled to a drug, the resulting drug-IgG4 Fc conjugate can minimize the effector functions of the IgG4 Fc and the chain exchange with in vivo IgG while maintaining in vivo activity and improving in vivo duration of the drug conjugate.

Described are immunoglobulins provided with a toxic moiety, comprising at least an immunoglobulin variable region that specifically binds to an MHC-peptide complex preferentially associated with aberrant cells. These immunoglobulins provided with a toxic moiety are preferably used in selectively modulating biological processes. The provided immunoglobulins provided with a toxic moiety are of particular use in pharmaceutical compositions for the treatment of diseases related to cellular aberrancies, such as cancers and autoimmune diseases.