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 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:
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 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 provides antibodies that bind to the C-terminal region of TSG101. The invention also provides methods of using the TSG101 antibodies for the treatment of viral infections, including HIV and Ebola virus infection.
摘要:
The present invention provides methods and compositions designed for the treatment, management, and/or amelioration of an infection, in particular an intracellular pathogen infection, such as a viral, bacterial, protozoa or fungal infection. In particular, the present invention provides methods for treating, managing, preventing and/or ameliorating an infection where the expression of EphA2 is upregulated in infected cells (e.g., infected epithelial cells), said methods comprising administering to a subject an effective amount of one or more EphA2/EphrinA1 Modulators. In accordance with the present invention, such methods may also comprise the administration of one or more therapies other than an EphA2/EphrinA1 Modulator. The present invention also provides pharmaceutical compositions comprising EphA2/EphrinA1 Modulators, and optionally, one or more prophylactic or therapeutic agents other than an EphA2/EphrinA1 Modulator, and the use of such compositions in the treating, management, prevention and/or amelioration of an infection. Further provided by the invention are articles of manufacture and kits comprising an EphA2/EphrinA1 Modulator of the invention, and, optionally, other prophylactic or therapeutic agents (e.g., immunomodulatory agents, anti-viral agents, anti-inflammatory agents, anti-bacterial agents, anti-fungal agents, etc.).
摘要:
The present invention is directed to compounds and methods for the treatment of metastatic disease. The compounds of this invention have specificity for EphA2, an epithelial cell tyrosine kinase that is overexpressed in metastatic tumor-cells. The compounds used in accordance with this invention may be provided in a pharmaceutical composition for treatment of metastatic disease.
摘要:
XMRV appears to be related to both prostate cancer if it infects a male germ cell and chronic fatigue syndrome in both sexes. (If the virus does not infect a germ cell). Prostate cancer cells exhibit TSG101 on the surface only upon infection with a virus like XMRV. Antibodies to TSG101 can be effective diagnostics to identify individuals with a predisposition to prostate. They can also be used in place of current diagnostics to confirm the presence of prostate cancer. TSG101 antibodies, when administered in vivo, exhibit the ability to reduce tumor size, suppress metastatic transformation and extend survival.