摘要:
The present invention relates to methods and compositions designed for the treatment, management, or prevention of cancer, particularly metastatic cancer and cancers of T cell origin, and hyperproliferative diseases involving EphA2-expressing cells. The methods of the invention entail the use of a Listeria-based EphA2 vaccine. The invention also provides pharmaceutical compositions comprising one or more Listeria-based vaccines of the invention either alone or in combination with one or more other agents useful for cancer therapy. In certain aspects of the invention, the methods entail eliciting both CD4+ and CD8+ T-cell responses against EphA2 and/or EphA2-expressing cells.
摘要:
The present invention relates to the use of antitumor compositions capable of inhibiting PCDGF biological activity for the treatment of cancers. In particular the present invention relates to the use of PCDGF antagonist, e.g., antibodies that prevent PCDGF from binding its receptor, Rse (also referred to as “Sky” and “Tyro3”).
摘要:
The present invention relates to bispecific single chain antibodies comprising a first binding domain that immunospecifically binds to the T-cell antigen CD3 and a second binding domain that immunospecifically binds to the EphA2 receptor. Such bispecific single chain antibodies are encompassed by the term “EphA2-BiTEs.” The present invention further relates to methods and compositions designed for the treatment, prevention and/or management of disorders associated with aberrant expression and/or activity of EphA2. Such disorders include, but are not limited to, cancer, non-cancer hyperproliferative cell disorders, and infections. The invention further relates to vectors comprising polynucleotides encoding the EphA2-BiTEs of the invention, host cells transformed therewith, and their use in the production of said EphA2-BiTEs. The invention also provides compositions, including pharmaceutical compositions, comprising any of the aforementioned EphA2-BiTEs, polynucleotides or vectors either alone or in combination with one or more prophylactic or therapeutic agents. Also disclosed are methods of screening for said EphA2-BiTEs and kits comprising any of the aforementioned compositions and diagnostic reagents.
摘要:
The present invention relates to methods and compositions designed for the treatment, management, or prevention of a non-neoplastic hyperproliferative cell or excessive cell accumulation disorders, particularly those involving hyperproliferation of epithelial or endothelial cells. In one embodiment, the methods of the invention comprise the administration of an effective amount of one or more EphA2 agonistic agents that bind to EphA2 and increase EphA2 cytoplasmic tail phosphorylation and/or increase EphA2 autophosphorylation in cells which EphA2 has been agonized. In another embodiment, the methods of the invention comprise the administration of an effective amount of one or more EphA2 agonistic agents that bind to EphA2 and reduce EphA2 activity (other than autophosphorylation). In another embodiment, the methods of the invention comprise administration of an effective amount of one or more EphA2 agonistic agents that bind to EphA2 and decrease a pathology-causing cell phenotype (e.g., a pathology-causing epithelial cell phenotype or a pathology-causing endothelial cell phenotype). In another embodiment, the methods of the invention comprise the administration of an effective amount of one or more EphA2 agonistic agents that are EphA2 antibodies that bind to EphA2 with a very low Koff rate. In preferred embodiments, agents of the invention are monoclonal antibodies. The invention also provides pharmaceutical compositions comprising one or more EphA2 agonistic agents of the invention either alone or in combination with one or more other agents useful in therapy for non-neoplastic hyperproliferative cell or excessive cell accumulation disorders.
摘要:
The present invention relates to methods and compositions designed for the treatment, management, or prevention of cancer, particularly, metastatic cancer. In one embodiment, the methods of the invention comprise the administration of an effective amount of an antibody that binds to EphA2 and agonizes EphA2, thereby increasing EphA2 phosphorylation and decreasing EphA2 levels. In other embodiments, the methods of the invention comprise the administration of an effective amount of an antibody that binds to EphA2 and inhibits cancer cell colony formation in soft agar, inhibits tubular network formation in three-dimensional basement membrane or extracellular matrix preparation, preferentially binds to an EphA2 epitope that is exposed on cancer cells but not non-cancer cells, and/or has a low Koff, thereby, inhibiting tumor cell growth and/or metastasis. The invention also provides pharmaceutical compositions comprising one or more EphA2 antibodies of the invention either alone or in combination with one or more other agents useful for cancer therapy.
摘要:
The present invention relates to methods and compositions designed for the treatment, management, or prevention of a hypoproliferative cell disorder, especially those disorders relating to the destruction, shedding, or inadequate proliferation of epithelial and/or endothelial cells, particularly interstitial cystitis (IC) and lesions associated with inflammatory bowel disease (IBD). The methods of the invention comprise the administration of an effective amount of one or more agents that are antagonists of EphA2. In certain embodiments, the EphA2 antagonistic agent of the invention decreases EphA2-endogenous ligand binding, upregulates EphA2 gene expression and/or translation, increases EphA2 protein stability or protein accumulation, decreases EphA2 cytoplasmic tail phosphorylation, promotes EphA2 kinase activity (other than autophosphorylation or ligand-mediated EphA2 signaling), increases proliferation of EphA2 expressing cells, increases survival of EphA2 expressing cells, and/or maintains/reconstitutes epithelial and/or endothelial cell layer integrity. The invention also provides pharmaceutical compositions comprising one or more EphA2 antagonistic agents of the invention either alone or in combination with one or more other agents useful for therapy for a hypoproliferative cell disorder. Diagnostic methods and methods for screening for therapeutically useful agents are also provided.
摘要:
Compositions and methods are disclosed for inhibiting the release of a proinflammatory cytokine from a vertebrate cell, and for inhibiting an inflammatory cytokine cascade in a patient. The compositions comprise, for example, high affinity antibodies that specifically bind HMG1 and antigenic fragments thereof. The high affinity antibodies of the present invention and pharmaceutical compositions comprising the same are useful for many purposes, for example, as therapeutics against a wide range of inflammatory diseases and disorders such as sepsis, rheumatoid arthritis, peritonitis, Crohn's disease, reperfusion injury, septicemia, endotoxic shock, cystic fibrosis, endocarditis, psoriasis, psoriatic arthritis, arthritis, anaphylactic shock, organ ischemia, reperfusion injury, and allograft rejection. In addition, the high affinity antibodies of the present inventions are useful as diagnostic antibodies.
摘要:
The present invention relates to the discovery of antibodies that bind to novel epitopes present on membrane-anchored immunoglobulins and which bind to these novel epitopes on the surface of B cells and plasma cells. In addition, the antibodies of the present invention can mediate ADCC and can be useful to deplete those B cells and plasma cells expressing the novel epitopes of the invention. The antibodies of the present invention can be useful for the treatment of B cell-mediated diseases and diseases caused by monoclonal expansion of B cells. Accordingly the present invention also provides compositions and methods for the prevention, management, treatment or amelioration of B cell-mediated diseases and diseases caused by monoclonal expansion of B cells.
摘要:
Compositions and methods are disclosed for inhibiting the release of a proinflammatory cytokine from a vertebrate cell, and for inhibiting an inflammatory cytokine cascade in a patient. The compositions comprise, for example, high affinity antibodies that specifically bind HMG1 and antigenic fragments thereof. The high affinity antibodies of the present invention and pharmaceutical compositions comprising the same are useful for many purposes, for example, as therapeutics against a wide range of inflammatory diseases and disorders such as sepsis, rheumatoid arthritis, peritonitis, Crohn s disease, reperfusion injury, septicemia, endotoxic shock, cystic fibrosis, endocarditis, psoriasis, psoriatic arthritis, arthritis, anaphylactic shock, organ ischemia, reperfusion injury, and allograft rejection. In addition, the high affinity antibodies of the present inventions are useful as diagnostic antibodies.
摘要:
The present invention relates to methods and compositions designed for the treatment, management, or prevention of cancer, particularly, metastatic cancer. In one embodiment, the methods of the invention comprise the administration of an effective amount of an antibody that binds to EphA2 and agonizes EphA2, thereby increasing EphA2 phosphorylation and decreasing EphA2 levels. In other embodiments, the methods of the invention comprise the administration of an effective amount of an antibody that binds to EphA2 and inhibits cancer cell colony formation in soft agar, inhibits tubular network formation in three-dimensional basement membrane or extracellular matrix preparation, preferentially binds to an EphA2 epitope that is exposed on cancer cells but not non-cancer cells, and/or has a low Koff, thereby, inhibiting tumor cell growth and/or metastasis. The invention also provides pharmaceutical compositions comprising one or more EphA2 antibodies of the invention either alone or in combination with one or more other agents useful for cancer therapy.