- 産業: Government; Health care
- Number of terms: 6957
- Number of blossaries: 0
- Company Profile:
The National Cancer Institute (NCI) is part of the National Institutes of Health (NIH), which is one of 11 agencies that compose the Department of Health and Human Services (HHS). The NCI, established under the National Cancer Institute Act of 1937, is the Federal Government's principal agency for ...
A gamma-emitting colloid used in scintillation scanning of the reticuloendothelial system (RES). After intravenous administration, technetium Tc 99m sulfur colloid is phagocytized by the reticuloendothelial system and concentrated in the liver, spleen, and bone marrow; detection/localization of phagocytized gamma ray-emitting colloid is performed with a gamma-ray scintillation camera. Scintillation scanning using technetium Tc 99m colloid sulfur helps determine the distribution and function of the RES and the extent to which tumor involves the RES. The RES includes cells types that can phagocytize and sequester inert particles and vital dyes; RES cell types include macrophages or macrophage precursors, specialized endothelial cells lining the sinusoids of the liver, spleen, and bone marrow, and reticular cells of lymphatic tissue and of bone marrow.
Industry:Pharmaceutical
A gallium Ga 68-radiolabeled analogue of somatostatin that may be used in conjunction with positron emission tomography (PET) to image neuroendocrine tumors and metastases. Gallium Ga 68-DOTANOC is a conjugate of the somatostatin analogue 1-Nal3-octreotide (NOC) and gallium Ga 68-labeled 1,4,7,10-tetraazacyclododecane-N,N',N'',N'''-tetraacetic acid (DOTA). The somatostatin analogue NOC has a high affinity for somatostatin receptor subtypes 2, 3, and 5; these receptor subtypes have been shown to be present in large numbers on neuroendocrine tumors and their metastases, while most other normal tissues express low levels of these somatostatin receptor subtypes.
Industry:Pharmaceutical
A galectin-binding polysaccharide derived from citrus pectin with potential antineoplastic activity. Apoptosis inducer GCS-100 binds to the carbohydrate-binding domain of the lectin galectin-3, which may result in apoptosis mediated through mitochondria/caspase activation cascades; this agent may overcome tumor growth mediated through anti-apoptotic protein Bcl-2, heat shock protein-27 (Hsp-27), and nuclear factor-kappa B (NF-kB). Galectin-3, a chimeric molecule consisting of both carbohydrate recognition and collagen-like domains, interacts with a variety of carbohydrate and protein ligands to form pentamers with unique crosslinking abilities; this lectin also exhibits anti-apoptotic properties, perhaps, in part, through the regulation of intracellular signaling pathways.
Industry:Pharmaceutical
A fusion protein immunotoxin consisting of a humanized, single-chain monoclonal antibody fragment specific for the epithelial cell adhesion molecule (EpCAM) conjugated with a truncated form of Pseudomonas exotoxin A with potential antineoplastic activity. Anti-EpCAM-Pseudomonas-exotoxin fusion protein binds to Ep-CAM-positive tumor cells, thereby delivering the Pseudomonas exotoxin A moiety specifically; the Pseudomonas exotoxin A moiety then inactivates elongation factor 2 (EF-2) through ADP ribosylation, resulting in inhibition of protein synthesis in target cells. EpCAM, a cell surface protein, is expressed by a variety of tumor cells and is frequently found in head and neck cancers.
Industry:Pharmaceutical
A fusion protein immunotoxin consisting of a humanized, single-chain monoclonal antibody Fab fragment specific for the epithelial cell adhesion molecule (EpCAM) conjugated with a modified bouganin cytotoxin with potential antineoplastic activity. Citatuzumab bogatox binds to EpCAM, delivering modified bouganin cytotoxin directly to EpCam-positive tumor cells, which may result in the inhibition of tumor cell protein synthesis and tumor cell death. EpCAM, a cell surface protein, is expressed by a variety of tumor cells and is frequently found in head and neck cancers. Bouganin is a plant-derived ribosome-inactivating protein (RIP), a toxic plant N-glycosidase that depurinates the universally conserved alpha-sarcin loop of ribosomal rRNA, inactivating the ribosome and preventing protein synthesis. Compared to unmodified bouganins, modified bouganins may have a reduced propensity to activate human T cells.
Industry:Pharmaceutical
A fusion protein containing two thrombospondin (TSP-1)-derived nonamer peptides covalently attached, via a proprietary diketone linker, to a proprietary humanized catalytic monoclonal aldolase monoclonal antibody with potential antiangiogenic and antineoplastic activities. The TSP-1 mimetic peptide moieties of TSP-1 mimetic fusion protein CVX-045 bind to TSP-1 receptors, such as CD36, and inhibit tumor angiogenesis, which may result in the inhibition of tumor cell proliferation. The proprietary humanized catalytic monoclonal aldolase monoclonal antibody contains reactive lysine residues in its binding sites, which react covalently with compounds having a diketone function; the TSP-1 mimetic peptide moieties are then covalently attached to the diketone linkers via a proprietary spacer.
Industry:Pharmaceutical
A fusion protein containing angiopoietin-2 (Ang2) and vascular endothelial growth factor (VEGF) derived peptides covalently attached, via a proprietary diketone linker, to a proprietary humanized catalytic aldolase monoclonal antibody, with potential antiangiogenic and antineoplastic activities. The Ang2/VEGF peptide moieties of Ang2/VEGF-binding peptides-antibody fusion protein CVX-241 bind to Ang2 and VEGF receptors, which may inhibit tumor angiogenesis and tumor cell proliferation. The proprietary humanized catalytic IgG1 monoclonal aldolase antibody contains reactive lysine residues in its binding sites, which react covalently with compounds having a diketone function; the Ang2 and VEGFR peptide moieties are then covalently attached to the diketone linkers via a proprietary spacer. Both VEGF and Ang2 are upregulated in a variety of cancer cell types and play a crucial role in angiogenesis. This agent possesses an enhanced half-life compared to the naked peptides.
Industry:Pharmaceutical
A fusion protein containing a modified form of human T-cell receptor (TCR) specific for the gp100 antigen and fused to an anti-CD3 single-chain antibody fragment, with potential antineoplastic activity. Upon direct intratumoral administration of IMCgp100 into the melanoma lesion, the TCR moiety of this agent targets and binds to the tumor associated antigen (TAA) gp100 presented on the melanoma tumor cell; the anti-CD3 fragment moiety binds to CD3- expressing T lymphocytes, thereby selectively cross-linking tumor cells and T-lymphocytes. This may lead to the recruitment of cytotoxic T lymphocytes (CTL) to the T lymphocyte/tumor cell aggregates and result in CTL-mediated death of gp100-expressing melanoma cancer cells.
Industry:Pharmaceutical
A fusion protein consisting of the Fv portion of a monoclonal antibody attached to a 38-kDa fragment of the Pseudomonas exotoxin A (with amino acids 365-380 deleted). LMB-2 immunotoxin targets the interleukin 2 receptor (also known as IL-2R or CD25) which is expressed on activated normal T and B cells and macrophages and on the cells of various hematologic malignancies. The antibody attaches to the IL-2R on the cell membrane, facilitating the entry of the exotoxin. The exotoxin moiety induces caspase-mediated apoptosis of tumor cells via a mechanism involving mitochondrial damage; it also catalyzes the transfer of ADP ribose from nicotinamide adenine dinucleotide (NAD) to elongation factor-2 in eukaryotic cells, thereby inactivating elongation factor 2 and inhibiting protein synthesis.
Industry:Pharmaceutical
A fusion protein consisting of a mouse-human chimeric antibody directed against DNA released by necrotic tumor cells fused to two molecules of a genetically modified human interleukin-2 (IL-2) with potential antineoplastic activity. Upon administration, the antibody moiety of immunocytokine NHS-IL2-LT binds to DNA released by necrotic tumor cells located primarily at the core of necrotic solid tumors, delivering the IL-2 moiety. In turn, the IL-2 moiety of this agent activates the immune system to mount a cytotoxic T lymphocyte response against nearby tumor cells.
Industry:Pharmaceutical
