Methods of treating subjects having a proliferative disease, disorder, or condition, including cancer, via the administration of an IL-10 agent, including pegylated IL-10, in combination with an antibody capable of inducing anti-body-dependent cell-mediated cytotoxicity, are provided.

The present invention describes antibodies that target CD19, wherein the antibodies comprise at least one modification relative to a parent antibody, wherein the modification alters affinity to an FcγR or alters effector function as compared to the parent antibody. Also disclosed are methods of using the antibodies of the invention.

The present invention relates to methods of treating or preventing cancer and other diseases using molecules, particularly polypeptides, more particularly immunoglobulins (e.g., antibodies), comprising a variant Fc region, wherein said variant Fc region comprises at least one amino acid modification relative to a wild-type Fc region, which variant Fc region binds an FcγR that activates a cellular effector (“FcγR.sub.Activating,” such as FcγRIIA or FcγRIIIA) and an FcγR that inhibits a cellular effector (“FcγR.sub.Inhibiting,” such as FcγRIIA) with an altered Ratio of Affinities relative to the respective binding affinities of such FcγR for the Fc region of the wild-type immunoglobulin. The methods of the invention are particularly useful in preventing, treating, or ameliorating one or more symptoms associated with a disease, disorder, or infection where either an enhanced efficacy of effector cell function mediated by FcγR is desired (e.g., cancer, infectious disease) or an inhibited effector cell response mediated by FcγR is desired (e.g., inflammation, autoimmune disease).

Improved anti-CD154 antibodies are provided herein which have ablated FcR binding and/or complement binding/activation. The use of these antibodies for inducing tolerance and treating immune diseases including autoimmunity, inflammation and allergic disorders is disclosed herein.

An antibody that specifically binds to a glucocorticoid-induced tumor necrosis factor receptor (GITR), an antibody fragment and a polymer thereof, and a conjugate and a fusion comprising the antibody or the antibody fragment are provided in the present invention. A nucleic acid encoding the antibody, the antibody fragment, the polymer, the conjugate and the fusion, a vector, and a host cell expressing the nucleic acid are also provided in the present invention. In addition, a composition comprising the antibody and the antibody fragment thereof, the polymer, the conjugate or the fusion, and use thereof in therapy and diagnosis are also provided in the present invention.

The invention relates to antibodies, and in particular, to antibodies exhibiting specificity for Receptor tyrosine kinase-like Orphan Receptors (ROR), and to uses thereof, for example in the treatment of cancer. The invention extends to polynucleotide and polypeptide sequences encoding the antibodies, and therapeutic uses thereof, and to diagnostic kits comprising these molecules. The invention also extends to antibody-drug conjugates and to uses thereof in therapy.

The invention features combination therapies using an IL-15-based superagonist complex and an antibody to effectively treat subjects with cancer and infectious diseases.

The present invention provides novel compounds comprising an antigen of AML cells, and uses thereof.

Provided are proteins comprising a variant IgG Fc region, wherein the proteins exhibit significantly reduced binding to human FcγRI when compared with a reference protein comprising the amino acid substitutions L234A/L235A/P329G. Also provided are compositions, methods of treatment and methods to reduce Fc-induced effector functions in a parent protein.

This application provides isolated antibodies, and antigen-binding fragments thereof, that specifically bind Trophoblast Cell-Surface Antigen-2 (Trop-2). These Trop-2 antibodies, or antigen-binding fragments thereof, have a highbinding affinity for Trop-2, are capable of inducing antibody- dependent cell-mediated cytotoxicity (ADCC), have good tumor penetration, can be internalized by cells expressing Trop-2, and can be used to diagnose, prognose, and treat Trop-2 -associated human diseases (e.g., cancer, infectious diseases, autoimmune diseases, asthma, transplant rejection, and inflammatory disorders).