- 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 topical formulation of a pentacyclic lupane-type triterpene derivative of betulin (isolated from the bark of Betula alba, the common white birch) with antiinflammatory, anti-HIV and antineoplastic activities. Betulinic acid induces apoptosis through induction of changes in mitochondrial membrane potential, production of reactive oxygen species, and opening of mitochondrial permeability transition pores, resulting in the release of mitochondrial factors involved in apoptosis, activation of caspases, and DNA fragmentation. Although originally thought to exhibit specific cytotoxicity against melanoma cells, this agent has been found to be cytotoxic against non-melanoma tumor cell types including neuroectodermal and brain tumor cells.
Industry:Pharmaceutical
A topical formulation of the small-molecule Smoothened (Smo) antagonist LDE225 with potential antineoplastic activity. Upon topical application, smoothened antagonist LDE225 topical selectively binds to the Hedgehog (Hh)-ligand cell surface receptor Smo, which may result in the suppression of the Hh signaling pathway and, so, the inhibition of tumor cells in which this pathway is abnormally activated. The Hh signaling pathway plays an important role in cellular growth, differentiation and repair. Inappropriate activation of Hh pathway signaling and uncontrolled cellular proliferation, as is observed in a variety of cancers, may be associated with mutations in the Hh-ligand cell surface receptor Smo.
Industry:Pharmaceutical
A topical gel containing a peptide derived from the human papillomavirus (HPV). Application of 851B gel may stimulate the host immune system to trigger a cytotoxic T-lymphocyte response to cells that express HPV.
Industry:Pharmaceutical
A topical gel containing the Toll-like receptor (TLR) agonist resiquimod, an imidazoquinolinamine and with potential immunomodulating activity. Resiquimod binds toTLR7 and 8, mainly on dendritic cells, macrophages, and B-lymphocytes, and activates the TLR signaling pathway, resulting in the induction of the nuclear translocation of transcription activator NF-kB and activation of other transcription factors; subsequently, gene expression increases and the production of cytokines increases, especially interferon-alpha (INF-a), resulting in the enhancement of T-helper 1 (Th1) immune responses. In addition, topical application of resiquimod appears to activate epidermal Langerhans cells, leading to an enhanced activation of T-lymphocytes.
Industry:Pharmaceutical
A topical lotion containing the small organic molecule protein tyrosine phosphatase (PTP) inhibitor menadione (vitamin K3) with potential EGFR- and ErbB2/HER2-activating activities. Upon topical administration, menadione binds to and inhibits the activity of PTPs that dephosphorylate and inactivate EGFR and ErbB2 in human keratinocytes; local reversal of EGFR and ErbB2 inhibition associated with the systemic administration of EGFR inhibitors may help alleviate EGFR inhibitor-mediated skin toxicity. EGFR (epidermal growth factor receptor) and ErbB2/HER2 (erythroblastic leukemia viral oncogene homolog 2/ human epidermal growth factor receptor 2) are cell surface receptors that are upregulated in a number of cancer cells types and play important roles in the growth and maintenance of normal epithelial tissues.
Industry:Pharmaceutical
A topical lotion, containing clindamycin and hydrocortisone, with antibacterial and anti-inflammatory activities. Clindamycin, a lincomycin antibiotic, binds to the 50S subunit of the bacterial ribosome, thereby inhibiting bacterial protein synthesis. As a glucocorticoid agonist, hydrocortisone promotes protein catabolism, gluconeogenesis, capillary wall stability, renal excretion of calcium, and suppression of immune and inflammatory responses.
Industry:Pharmaceutical
A topical preparation of baclofen, amitriptyline, and ketamine compounded in a penetration-enhancing polaxamer-lecithin organogel (PLO) with potential antineuralgic activity. The gamma-aminobutyric acid (GABA) analogue baclofen appears to activate the inhibitory GABA(B) receptor, a G protein-coupled receptor, which may result in hyperpolarization of the neuronal cell membrane and inhibition of neurotransmitter release. Amitriptyline likely produces antineuralgic effects via modulation of multiple subtypes of glutamate (Glu) receptors, independent of its antidepressant actions. Ketamine displays complex pharmacologic actions including biogenic amine uptake inhibition, interaction with opioid receptors, and inhibition of N-methyl D-aspartate (NMDA) receptors. Stimulation of GABA(B) receptor activity, modulation of Glu receptor activity, and inhibition of NMDA receptor activity may be of benefit in managing neuropathic pain.
Industry:Pharmaceutical
A topical preparation of gemcitabine hydrochloride with antineoplastic activity. Gemcitabine, an analogue of the antimetabolite nucleoside deoxycytidine, is converted intracellularly to the active metabolites difluorodeoxycytidine di- and triphosphate (dFdCDP, dFdCTP). DFdCDP inhibits ribonucleotide reductase, thereby decreasing the deoxynucleotide pool available for DNA synthesis; dFdCTP is incorporated into DNA, resulting in DNA strand termination and apoptosis.
Industry:Pharmaceutical
A topical preparation of the fat-soluble vitamin E with potential antioxidant and cytoprotective activities. As a potent antioxidant and radical scavenger, vitamin E ameliorates free-radical damage to cell membranes, thereby protecting cells from reactive oxygen species and maintaining the integrity of cellular macromolecules. In addition, vitamin E noncompetitively inhibits cyclooxygenase (COX) activity in many tissues, which may decrease inflammation. Vitamin E is a generic name for a group of compounds known as tocopherols and tocotrienols (tocols).
Industry:Pharmaceutical
A topical solution containing phenylephrine, a sympathomimetic amine with vasoconstricting activity. Upon topical application to the oral mucosa, phenylephrine may activate alpha-adrenergic receptors in the mucosa thereby causing vasoconstriction. As a result, this agent may reduce swelling of the mucosal membranes and decrease radiotherapy-induced mucositis.
Industry:Pharmaceutical
