- المجال: 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 synthetic derivative of pterins with antineoplastic and immunosuppressive properties. As a folate analogue, aminopterin competes for the folate binding site of the enzyme dihydrofolate reductase, thereby blocking tetrahydrofolate synthesis, and resulting in depletion of nucleotide precursors and inhibition of DNA, RNA and protein synthesis.
Industry:Pharmaceutical
A synthetic derivative of pyrimidine with antineoplastic activity. Penclomedine alkylates and crosslinks DNA, resulting in DNA strand breaks and inhibition of DNA and RNA synthesis. This agent is more active against tumor cells that are defective in p53 function.
Industry:Pharmaceutical
A synthetic derivative of staurosporine with antineoplastic activity. 7-hydroxystaurosporine inhibits many phosphokinases, including the serine/threonine kinase AKT, calcium-dependent protein kinase C, and cyclin-dependent kinases. This agent arrests tumor cells in the G1/S of the cell cycle and prevents nucleotide excision repair by inhibiting the G2 checkpoint kinase chk1, resulting in apoptosis.
Industry:Pharmaceutical
A synthetic derivative of the anthracycline antineoplastic antibiotic doxorubicin with potential antineoplastic activity. Esorubicin intercalates into DNA and inhibits topoisomerase II, thereby inhibiting DNA replication and ultimately, interfering with RNA and protein synthesis. This agent exhibits less cardiotoxicity than the parent antibiotic doxorubicin, but may cause more severe myelosupression compared to other compounds within the anthracycline class.
Industry:Pharmaceutical
A synthetic diethylaminoethyl analogue of the indolocarbazole glycoside antineoplastic antibiotic rebeccamycin. Becatecarin intercalates into DNA and stabilizes the DNA-topoisomerase I complex, thereby interfering with the topoisomerase I-catalyzed DNA breakage-reunion reaction and initiating DNA cleavage and apoptosis.
Industry:Pharmaceutical
A synthetic dihydrotriazine derivative with antineoplastic properties. As an antifolate agent related to methotrexate (MTX), triazinate inhibits the enzyme dihydrofolate reductase (DHFR), resulting in decreased tetrahydrofolate production and interference with thymidylate synthesis. Unlike MTX, this agent is not converted to polyglutamate forms. Triazinate also inhibits the transport of folates and may be selectively toxic to MTX-resistant tumor cells.
Industry:Pharmaceutical
A synthetic flavonoid derivative. Idronoxil activates the mitochondrial caspase system, inhibits X-linked inhibitor of apoptosis (XIAP), and disrupts FLICE inhibitory protein (FLIP) expression, resulting in tumor cell apoptosis. This agent also inhibits DNA topoisomerase II by stabilizing the cleavable complex, thereby preventing DNA replication and resulting in tumor cell death.
Industry:Pharmaceutical
A synthetic flavonoid with vascular targeting properties. Flavone acetic acid exhibits an antiproliferative effect on endothelial cells as a result of a superoxide-dependent mechanism, which induces changes in permeability of the vasculature of the tumor. This agent may stimulate tumor necrosis and promote shunting of blood flow to viable regions of the tumor, increasing their oxygenation and rendering them more susceptible to the antitumor effects of hyperthermia and ionizing radiation.
Industry:Pharmaceutical
A synthetic formulation in which the antineoplastic agent cisplatin is encapsulated in lipids. Liposomal cisplatin consists of small aggregates of cisplatin covered by a single lipid bilayer. Encasement in liposomes improves cisplatin's tumor bioavailability and toxicity profile. Liposomal encapsulation does not affect the pharmacological properties of cisplatin directly. Cisplatin forms highly reactive, charged, platinum complexes which bind to nucleophilic groups such as GC-rich sites in DNA, inducing intrastrand and interstrand DNA cross-links, as well as DNA-protein cross-links. These cross-links result in apoptosis and cell growth inhibition.
Industry:Pharmaceutical
A synthetic glucocorticoid with anti-inflammatory and immunomodulating properties. After cell surface receptor attachment and cell entry, prednisone enters the nucleus where it binds to and activates specific nuclear receptors, resulting in an altered gene expression and inhibition of proinflammatory cytokine production. This agent also decreases the number of circulating lymphocytes, induces cell differentiation, and stimulates apoptosis in sensitive tumor cells populations.
Industry:Pharmaceutical
