m-azidopyrimethamine

An antifolate derived from diaminopyrimidine with cytotoxic properties. With a mechanism of action similar to that of methotrexate (MTX), m-azidopyrimethamine blocks tetrahydrofolate synthesis, resulting in depletion of nucleotide precursors and inhibition of DNA, RNA and protein synthesis. This agent is more lipophilic but less potent than MTX.

M87o-transduced CD34+ peripheral blood stem cells

Peripheral blood stem cells (PBSCs) transduced with the retroviral vector M87o encoding for the HIV-1-entry inhibitor peptide membrane-anchored antiviral peptide C46 (maC46). Expression of C46 by M87o-transduced CD34+ peripheral blood stem cells may prevent the fusion of viral and cellular membranes, thereby inhibiting HIV-1 entry. C46 is a membrane-anchored peptide encoding amino acids 628 to 673 of the HIV-1 entry inhibitory transmembrane glycoprotein gp41.

Maalox suspension

(Other name for: magnesium hydroxide/aluminum hydroxide/simethicone suspension)

macrogol 3350-based oral osmotic laxative

An isotonic solution containing macrogol 3350 and electrolytes with laxative activity. Macrogol 3350-based oral osmotic laxative promotes the retention of water in the bowel, thereby increasing the water content of stool, which results in increased gastrointestinal motility and stool transit time and evacuation of colonic contents. Macrogol 3350 is also known as polyethylene glycol (PEG) 3350.

MAGE-10.A2

A synthetic nonapeptide derived from a melanoma-associated antigen. Vaccination with MAGE-10.A2 may stimulate a host cytotoxic T-cell response against tumor cells that express the melanoma-associated antigen, resulting in tumor cell lysis.

MAGE-3.A1 peptide vaccine

A synthetic peptide cancer vaccine consisting of human leukocyte antigen HLA-A1-restricted peptide derived from human melanoma antigen 3 (MAGE-3) with potential immunostimulating and antineoplastic activities. Upon administration, MAGE-3.A1 peptide vaccine may stimulate the immune system to mount a cytotoxic T-cell (CTL) response against tumor cells expressing MAGE-3, resulting in tumor cell lysis. MAGE-3, a tumor-associated antigen (TAA), is overexpressed by a variety of cancer cell types.

MAGE-A1, Her-2/neu, FBP peptides ovarian cancer vaccine

A cancer vaccine containing multiple synthetic antigen peptides derived from MAGE-A1, Her-2/neu, and folate binding protein (FBP) with potential immunostimulating and antineoplastic properties. MAGE-A1, Her-2/neu, FBP peptides cancer vaccine includes the antigen peptides MAGE-A1:161-169, FBP:191-199, Her-2/neu:369-377, MAGE-A1:96-104, and Her-2/neu:754-762. Upon administration, this cancer vaccine may stimulate the immune system to mount a cytotoxic T-cell (CTL) response against tumor cells expressing these antigen peptides, resulting in tumor cell lysis. MAGE-A1, Her-2/neu, and FBP proteins may be over-expressed in various cancer cell types, such as epithelial ovarian cancer cells.

MAGE-A1, MAGE-A3, NY-ESO-1 peptides vaccine

A cancer vaccine comprised of synthetic peptides derived from human melanoma antigen A1 (MAGE-A1), human melanoma antigen A3 (MAGE-A3) and cancer-testis antigen NY-ESO-1 with potential immunostimulating and antineoplastic activities. Upon administration, MAGE-A1/MAGE-A3/NY-ESO-1 peptides vaccine may stimulate the immune system to mount a cytotoxic T-cell (CTL) response against tumor cells expressing MAGE-A1, MAGE-A3 and NY-ESO-1, resulting in tumor cell lysis. The MAGE-A1, MAGE-A3, and NY-ESO-1 tumor-associated antigens (TAAS) are overexpressed by a variety of cancer cell types.

MAGE-A3 peptide vaccine

A peptide cancer vaccine comprised of a peptide derived from the human melanoma antigen A3 (MAGE-A3), with potential immunostimulating and antineoplastic activities. Upon administration, MAGE-A3 peptide vaccine may stimulate the immune system to mount a cytotoxic T-cell (CTL) response against tumor cells expressing MAGE-A3, resulting in tumor cell lysis. MAGE-A3, a tumor-associated antigen (TAA), is overexpressed by a variety of cancer cell types.

MAGE-A3 reactive T cell receptor-transduced autologous T cells

Human autologous T-lymphocytes transduced with a retroviral vector encoding a T cell receptor (TCR) specific for the human melanoma antigen A3 (MAGE-A3), with potential antineoplastic activity. Upon isolation, transduction, expansion ex vivo, and reintroduction into the patient, the MAGE-A3 reactive TCR-transduced autologous T cells bind to tumor cells expressing MAGE-A3, which may halt the growth of MAGE-A3-expressing cancer cells; the TCR is specific for MAGE-A3:168-176.

MAGE-A3/HPV 16 peptide vaccine

A multi-epitope "Trojan antigen" ("TA") construct vaccine consisting of human melanoma antigen A3 (MAGE-A3) and human papillomavirus (HPV) 16 peptide epitopes linked by the furin-sensitive linker peptide RVKR (arginine-serine-lysine-arginine) with immunostimulatory and antitumor activities. The TA construct enters the cytoplasm of antigen-presenting cells (APC) and is processed by the endoplasmic reticulum (ER) and the trans-Golgi network (TGN), where the endopeptidase furin releases the epitopes from the RVKR linker peptide and, together with various exopeptidases, generates MHC class I-binding peptides. Expressed on the cell surfaces of APC, these MHC class I-binding peptides stimulate a cytotoxic T lymphocyte (CTL) response against tumor cells that display the same peptide epitopes on their cell surfaces.

magnesium citrate

The citrate salt of the element magnesium with cathartic activity. The cathartic action of magnesium cations appears to result, in part, from osmotically mediated water retention, which subsequently stimulates peristalsis. In addition, magnesium ions may also stimulate the activity of nitric oxide (NO) synthase and increase the biosynthesis of the phospholipid proinflammatory mediator platelet activating factor (PAF) in the gut. NO may stimulate intestinal secretion via prostglandin- and cyclic GMP-dependent mechanisms while PAF produces significant stimulation of colonic secretion and gastrointestinal motility.

magnesium hydroxide

A solution of magnesium hydroxide with antacid and laxative properties. Milk of magnesium exerts its antacid activity in low doses such that all hydroxide ions that enter the stomach are used to neutralize stomach acid. This agent exerts its laxative effect in higher doses so that hydroxide ions are able to move from the stomach to the intestines where they attract and retain water, thereby increasing intestinal movement (peristalsis) and inducing the urge to defecate.

magnesium hydroxide/aluminum hydroxide/simethicone suspension

An oral suspension containing magnesium hydroxide, aluminum hydroxide and simethicone with antacid activity. Both magnesium hydroxide and aluminum hydroxide react with excess acid in the stomach thereby neutralizing gastric acid. Simethicone, a mixture of polydimethylsiloxane and silica gel, reduces the surface tension of gas bubbles, promoting gas bubble coalescence and so intestinal gas transit and evacuation.

magnesium oxide

The oxide salt of magnesium with antacid, laxative and vascular smooth muscle relaxant activities. Magnesium combines with water to form magnesium hydroxide which reacts chemically to neutralize or buffer existing quantities of stomach acid; stomach-content and intra-esophageal pH rise, resulting in a decrease in pepsin activity. This agent's laxative effect is the result, in part, of osmotically mediated water retention, which subsequently stimulates peristalsis. In addition, magnesium ions may behave as calcium antagonists in vascular smooth muscle.

magnesium valproate

The magnesium salt of valproic acid (2-propylpentanoic acid) with antiepileptic and potential antineoplastic activities. Magnesium valproate dissociates in the gastrointestinal tract and is absorbed into the circulation as magnesium ions and valproic acid ions; valproic acid may inhibit histone deacetylases, inducing tumor cell differentiation, apoptosis, and growth arrest. In addition, valproic acid exerts an antiepileptic effect, likely by inhibiting enzymes that catabolize the inhibitory neurotransmitter gamma-aminobutyric acid (GABA) catabolism and so increasing concentrations of GABA in the central nervous system (CNS). The presence of the magnesium in this agent may contribute to its anticonvulsant activity and sedative properties.

Maitake mushroom extract

An extract of the edible mushroom Maitaki, Grifola frondosa, rich in glucan polysaccharides, with potential immunostimulating activity. Upon oral ingestion, Maitaki mushroom extract may promote dendritic cell (DC) maturation, increase interferon gamma (IFN-gamma) and tumor necrosis factor alpha (TNF-alpha) production, and may enhance natural killer (NK) cell activity, thereby amplifying both innate and T cell-mediated immune responses against cancer cells. In addition, this extract may stimulate the production of granulocyte colony stimulating factor (GCSF) and promote hematopoiesis, and may improve the neutrophil count.

Makarol

(Other name for: diethylstilbestrol)

malignant glioma tumor lysate-pulsed autologous dendritic cell vaccine

A cell-based cancer vaccine composed of autologous dendritic cells (DCs) pulsed with lysates from malignant glioma cells with potential immunostimulatory and antineoplastic activities. Upon administration, malignant glioma tumor lysate-pulsed autologous dendritic cell vaccine exposes the immune system to undefined malignant glioma tumor-associated antigens (TAAs), which may result in anti-tumoral cytotoxic T lymphocyte (CTL) and antibody responses against glioma cells and glioma cell lysis.

mammaglobin-A DNA vaccine

A cancer vaccine containing a plasmid encoding the mammaglobin-A gene with potential immunostimulating and antineoplastic activities. Upon administration, mammaglobin-A DNA vaccine may induce both humoral and cytotoxic T lymphocyte (CTL) immune responses against tumor cells that express mammaglobin-A, which may result in decreased tumor growth. The 10 kiloDalton (kD) glycoprotein mammglobin-A is expressed in over 80% of human breast cancers.

mangafodipir trisodium

The trisodium salt of mangafodipir with potential antioxidant and chemoprotective activities. Consisting of manganese (II) ions chelated to fodipir (dipyridoxyl diphosphate or DPDP), mangafodipir scavenges oxygen free radicals such as superoxide anion, hydrogen peroxide, and hydroxyl radical, potentially preventing oxygen free radical damage to macromolecules such as DNA and minimizing oxygen free radical-related chemotoxicity in normal tissues. However, this agent may potentiate the chemotherapy-induced generation of oxygen free radicals in tumor cells, resulting in the potentiation of chemotherapy-induced cytotoxicity; tumor cells, with higher levels of reactive oxygen species than normal cells, possess a lower threshold for oxygen free radical-mediated cytotoxicity. Mangafodipir is traditionally used as an imaging agent in magnetic resonance imaging (MRI).

Manuka honey

A monofloral honey with potential wound repair and antibacterial activities. Manuka honey is produced by bees fed on the flowers of the New Zealand Manuka bush (Leptospermum scoparium). Manuka honey contains a significant higher concentration of the 1,2-dicarbonyl compound methylglyoxal, which may account for its antibacterial activity; this agent may release small amounts of hydrogen peroxide which may also contribute to its antibacterial activity. Manuka honey has been reported to stimulate the formation of new blood capillaries and the growth of fibroblasts and epithelial cells when applied topically to wounds.

marcellomycin

An antineoplastic oligosaccharide anthracycline antineoplastic antibiotic isolated from the bacterium Actinosporangium bohemicum. Marcellomycin intercalates into DNA and induces DNA crosslinks, thereby inhibiting DNA replication and repair and RNA and protein synthesis. This agent also induces differentiation in HL-60 promyelocytic leukemia cells by interfering with glycoprotein synthesis.

Marinol

(Other name for: dronabinol)

marizomib

A naturally-occurring salinosporamide, isolated from the marine actinomycete Salinospora tropica, with potential antineoplastic activity. Marizomib irreversibly binds to and inhibits the 20S catalytic core subunit of the proteasome by covalently modifying its active site threonine residues; inhibition of ubiquitin-proteasome mediated proteolysis results in an accumulation of poly-ubiquitinated proteins, which may result in the disruption of cellular processes, cell cycle arrest, the induction of apoptosis, and the inhibition of tumor growth and angiogenesis. This agent more may more potent and selective than the proteasome inhibitor bortezomib.

MART-1:26-35(27L) peptide vaccine

A peptide-based cancer vaccine consisting of amino acid residues 26 through 35 of MART-1 (melanoma antigen recognized by T-cells-1) with a leucine substitution at amino acid position 27 to improve immunogenicity. Upon administration, MART-1:26-35(27L) peptide vaccine may induce a cytotoxic T-lymphocyte (CTL) response against MART-1-expressing tumor cells, resulting in decreased tumor growth. The tumor-associated antigen (TAA) MART-1 may be overexpressed on melanoma cancer cells.

MART-1:27-35 peptide vaccine

A natural or synthetic peptide cancer vaccine consisting of amino acid residues 27 through 35 of the melanoma-associated antigen MART-1 with potential antineoplastic activity. Vaccination with MART-1:27-35 peptide may induce cytotoxic host immune responses against melanoma cells that express this peptide.

masitinib mesylate

The orally bioavailable mesylate salt of masatinib, a multi-targeted protein tyrosine kinase inhibitor with potential antineoplastic activity. Masitinib selectively binds to and inhibits both the wild-type and mutated forms of the stem cell factor receptor (c-Kit; SCFR); platelet-derived growth factor receptor (PDGFR); fibroblast growth factor receptor 3 (FGFR3); and, to a lesser extent, focal adhesion kinase (FAK). As a consequence, tumor cell proliferation may be inhibited in cancer cell types that overexpress these receptor tyrosine kinases (RTKs).

mast cell stabilizer TF002

A small molecule with mast cell stabilizing activity. Mast cell stabilizer TF002 inhibits the formation of lipid rafts of mast cell membranes that contain the signaling machinery which triggers the release of mast cell allergic and inflammatory mediators. Inhibition of lipid raft assembly by this agent results in mast cell stabilization, preventing mast cell degranulation and the release of the inflammatory mediators involved in type I allergic reactions (histamine, leukotrienes, prostaglandins, and cytokines). The assembly of the signaling machinery in mast cell lipid rafts, specialized membrane microdomains rich in cholesterol and sphingolipids, is initiated by IgE binding to its receptor on the mast cell surface; subsequently, allergens crosslink with the IgE/receptor complex and other proteins and lipids are recruited into the signaling machinery.

Maxidex

(Other name for: dexamethasone)

Maxipime

(Other name for: cefepime hydrochloride)

maytansine

An ansamycin antibiotic originally isolated from the Ethiopian shrub Maytenus serrata. Maytansine binds to tubulin at the rhizoxin binding site, thereby inhibiting microtubule assembly, inducing microtubule disassembly, and disrupting mitosis. Maytansine exhibits cytotoxicity against many tumor cell lines and may inhibit tumor growth in vivo.

MCT/LCT lipid emulsion

A nutritional lipid emulsion consisting of both coconut oil-derived medium chain triglycerides (MCTs) and soybean oil-derived long chain triglycerides (LCTs). The LCTs in the MCT/LCT lipid emulsion supply the body with essential omega-6 fatty acids, which are needed as components of phospholipids in cell membranes and as precursors of eicosanoids. The MCTs mainly provide calories for energy. In addition to LCTs and MCTs, this lipid emulsion contains egg yolk lecithin, glycerol, and the antioxidant alpha-tocopherol (vitamin E).

MCT/LCT/fish oil omega-3 fatty triglyceride lipid emulsion

A nutritional lipid emulsion consisting of coconut oil-derived medium chain triglycerides (MCTs), soybean oil-derived long chain triglycerides (LCT), and the fish oil-derived polyunsaturated omega-3 fatty acids. This lipid emulsion supplies essential fatty acids and calories for energy. Omega-3 fatty acids may decrease the production of certain pro-inflammatory cytokines, including interleukin 1 (IL-1), Il-6 and tumor necrosis factor (TNF). The MCTs mainly provide calories for energy. In addition to LCTs, MCTs, and omega-3 fatty acids, this lipid emulsion contains egg yolk lecithin, glycerol, and the antioxidant alpha-tocopherol (vitamin E).

MDM2 antagonist RO5045337

An MDM2 (human homolog of double minutes-2; HDM2) antagonist with potential antineoplastic activity. RO5045337 binds to MDM2, thereby preventing the binding of the MDM2 protein to the transcriptional activation domain of the tumor suppressor protein p53. By preventing this MDM2-p53 interaction, the proteosome-mediated enzymatic degradation of p53 is inhibited and the transcriptional activity of p53 is restored, which may result in the restoration of p53 signaling and thus the p53-mediated induction of tumor cell apoptosis. MDM2, a zinc finger protein, is a negative regulator of the p53 pathway; often overexpressed in cancer cells, it has been implicated in cancer cell proliferation and survival.

measles/mumps/rubella vaccine

A trivalent vaccine containing live attenuated viruses that can cause measles, mumps and rubella. It is an injection administered subcutaneously in two separate doses.

Measurin

(Other name for: acetylsalicylic acid)

Meclan

(Other name for: meclocycline sulfosalicylate)

meclocycline sulfosalicylate

The sulfosalicylate salt form of meclocycline, a tetracycline antibiotic with broad-spectrum antibacterial and antiprotozoal activity. Meclocycline sulfosalicylate is bacteriostatic and inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit, thereby preventing the addition of amino acids to the growing peptide chain. This tetracycline is active against a wide range of gram-positive and gram-negative bacteria.

Medlone 21

(Other name for: methylprednisolone)

Medrol

(Other name for: methylprednisolone)

megestrol acetate

The acetate salt of megestrol, a synthetic derivative of the naturally occurring female sex hormone progesterone, with progestogenic, antiestrogenic, and antineoplastic activities. Mimicking the action of progesterone, megestrol binds to and activates nuclear progesterone receptors (PRs) in the reproductive system and pituitary; ligand-receptor complexes are translocated to the nucleus where they bind to progesterone response elements (PREs) located on target genes. Megestrol’s antineoplastic activity against estrogen-responsive tumors may be due, in part, to the suppression of pituitary gonadotrophin production and the resultant decrease in ovarian estrogen secretion; interference with the estrogen receptor complex in its interaction with genes and; as part of the progesterone receptor complex, direct interaction with the genome and downregulation of specific estrogen-responsive genes. This agent may also directly kill tumor cells.

MEK inhibitor ARRY-438162

An orally active small-molecule inhibitor of MEK1 and MEK2 (MEK1/2) with potential antineoplastic activity. MEK inhibitor ARRY-438162, noncompetitive with ATP, binds to and inhibits the activity of MEK 1 and 2 (MEK1/2). Inhibition of MEK1/2 prevents the activation of MEK1/2 dependent effector proteins and transcription factors, which may result in the inhibition of growth factor-mediated cell signaling and tumor cell proliferation. MEK1/2 (MAP2K1/K2) are dual-specificity threonine/tyrosine kinases that play key roles in the activation of the RAS/RAF/MEK/ERK pathway and are often upregulated in a variety of tumor cell types.

MEK inhibitor AS703026

An orally bioavailable small-molecule inhibitor of MEK1 and MEK2 (MEK1/2) with potential antineoplastic activity. MEK inhibitor AS703026 selectively binds to and inhibits the activity of MEK1/2, preventing the activation of MEK1/2-dependent effector proteins and transcription factors, which may result in the inhibition of growth factor-mediated cell signaling and tumor cell proliferation. MEK1/2 (MAP2K1/K2) are dual-specificity threonine/tyrosine kinases that play key roles in the activation of the RAS/RAF/MEK/ERK pathway and are often upregulated in a variety of tumor cell types.

MEK inhibitor AZD8330

An orally active, selective MEK inhibitor with potential antineoplastic activity. MEK inhibitor AZD8330 specifically inhibits mitogen-activated protein kinase kinase 1 (MEK or MAP/ERK kinase1), resulting in inhibition of growth factor-mediated cell signaling and tumor cell proliferation. MEK is a key component of the RAS/RAF/MEK/ERK signaling pathway that regulates cell growth; constitutive activation of this pathway has been implicated in many cancers.

MEK inhibitor GDC-0623

An orally active, selective MEK inhibitor with potential antineoplastic activity. MEK inhibitor GDC-0623 specifically inhibits mitogen-activated protein kinase kinase (MEK or MAP/ERK kinase), resulting in inhibition of growth factor-mediated cell signaling and tumor cell proliferation. MEK is a key component of the RAS/RAF/MEK/ERK signaling pathway that regulates cell growth; constitutive activation of this pathway has been implicated in many cancers.

MEK inhibitor GDC-0973

An orally bioavailable small-molecule inhibitor of mitogen-activated protein kinase kinase 1 (MAP2K1 or MEK1), with potential antineoplastic activity. MEK inhibitor GDC-0973 specifically binds to and inhibits the catalytic activity of MEK1, resulting in inhibition of extracellular signal-related kinase 2 (ERK2) phosphorylation and activation and decreased tumor cell proliferation. Preclinical studies have demonstrated that this agent is effective in inhibiting the growth of tumor cells bearing a B-RAF mutation, which has been found to be associated with many tumor types. A threonine-tyrosine kinase and a key component of the RAS/RAF/MEK/ERK signaling pathway that is frequently activated in human tumors, MEK1 is required for the transmission of growth-promoting signals from numerous receptor tyrosine kinases.

MEK inhibitor RDEA119

An orally bioavailable selective MEK inhibitor with potential antineoplastic activity. MEK inhibitor RDEA119 specifically inhibits mitogen-activated protein kinase kinase 1 (MAP2K1 or MAPK/ERK kinase 1), resulting in inhibition of growth factor-mediated cell signaling and tumor cell proliferation. MEK, a dual specificity threonine/tyrosine kinase, is a key component of the RAS/RAF/MEK/ERK signaling pathway that regulates cell growth; constitutive activation of this pathway has been implicated in many cancers.

MEK inhibitor RO4987655

An orally active small molecule, targeting mitogen-activated protein kinase kinase 1 (MAP2K1 or MEK1), with potential antineoplastic activity. MEK inhibitor RO4987655 binds to and inhibits MEK, which may result in the inhibition of MEK-dependent cell signaling and the inhibition of tumor cell proliferation. MEK, a dual specificity threonine/tyrosine kinase, is a key component of the RAS/RAF/MEK/ERK signaling pathway that regulates cell growth; constitutive activation of this pathway has been implicated in many cancers.

MEK inhibitor TAK-733

An orally bioavailable small-molecule inhibitor of MEK1 and MEK2 (MEK1/2) with potential antineoplastic activity. MEK inhibitor TAK-733 selectively binds to and inhibits the activity of MEK1/2, preventing the activation of MEK1/2-dependent effector proteins and transcription factors, which may result in the inhibition of growth factor-mediated cell signaling and tumor cell proliferation. MEK1/2 (MAP2K1/K2) are dual-specificity threonine/tyrosine kinases that play key roles in the activation of the RAS/RAF/MEK/ERK pathway and are often upregulated in a variety of tumor cell types.

MEK-1/MEKK-1 inhibitor E6201

A synthetic, fungal metabolite analogue inhibitor of mitogen-activated protein kinase kinase 1 (MEK-1) and mitogen-activated protein kinase kinase kinase 1 (MEKK-1) with potential antipsoriatic and antineoplastic activities. MEK-1/MEKK-1 inhibitor E6201 specifically binds to and inhibits the activities of MEK-1 and MEKK-1, which may result in the inhibition of tumor cell proliferation. MEK-1 and MEKK-1 are key components in the RAS/RAF/MEK/MAPK signaling pathway, which regulates cell proliferation and is frequently activated in human cancers.

Melan-A VLP vaccine

A vaccine consisting of the melanocyte differentiation antigen Melan A (also called MART-1) encapsulated in noninfectious virus-like particles (VLPs) with potential immunostimulating and antineoplastic activities. Upon administration, Melan-A VLP vaccine may stimulate the immune system to exert a specific cytotoxic T lymphocyte (CTL) response against tumor cells expressing the Melan A antigen, resulting in tumor cell lysis. Melan A is upregulated in most melanomas. VLPs stimulate the immune system and promotes the CTL response.

Melan-A/MAGE-3.DP4 peptide vaccine

A cancer vaccine consisting of a peptide derived from the melanocyte differentiation antigen Melan-A (or MART-1) and the human leukocyte antigen HLA-DP4-restricted human melanoma antigen 3 (MAGE-3.DP4), with potential immunostimulating and antineoplastic activities. Upon administration, Melan-A/MAGE-3.DP4 peptide vaccine may stimulate the immune system to mount a cytotoxic T-cell (CTL) response against tumor cells expressing Melan-A and MAGE-3, resulting in tumor cell lysis. The tumor associated antigens Melan-A and MAGE-3 are overexpressed in a variety of cancer cell types.

melanoma helper peptide vaccine

A multivalent vaccine consisting of peptides derived from melanoma-associated antigens and an adjuvant peptide derived from tetanus toxoid. Vaccination with this agent may stimulate a host cytotoxic T-cell response against tumor cells expressing melanoma-associated antigens, resulting in tumor cell lysis.

melanoma TRP2 CTL epitope vaccine SCIB1

A proprietary DNA-based cancer vaccine that encodes a melanoma antigen tyrosinase-related protein 2 (TRP2) cytotoxic T-lymphocyte (CTL) epitope and a modified monoclonal antibody, a chimera of human IgG1/murine IgG2a with T cell mimotopes expressed within the complementarity-determining regions (CDR) of the antibodies, with potential immunostimulating and antineoplastic activities. Upon intramuscular injection and electroporation, melanoma TRP2 CTL epitope vaccine SCIB1 expresses the modified antibody. Subsequently, the Fc component of the engineered antibody targets and binds to the CD64 receptor on the dendritic cells (DCs); upon processing by DCs, the cellular immune system may be activated to induce helper T-cell and CTL immune responses against tumor cells expressing the TRP2 antigen.

MELITAC 12.1 peptide vaccine

A peptide cancer vaccine consisting of an emulsion of a mixture of 12 class I MHC-restricted melanoma peptides and a class II MHC-restricted tetanus toxoid helper peptide, with potential immunostimulating and antineoplastic activities. Upon administration, the MELITAC 12.1 peptide vaccine may stimulate the host immune system to mount a cytotoxic T-cell response against tumor cells expressing the melanoma peptide antigens, resulting in tumor cell lysis. The melanoma peptides contained in the vaccine are upregulated in melanoma cancer cells.

meloxicam

An oxicam derivative and a non-steroidal anti-inflammatory drug (NSAID) with anti-inflammatory, antipyretic and analgesic activities. Unlike traditional nonselective NSAIDs, meloxicam preferentially inhibits the activity of cyclo-oxygenase II (COX-II), resulting in a decreased conversion of arachidonic acid into prostaglandin precursors. The resulting decrease in prostaglandin synthesis is responsible for the therapeutic effects of meloxicam.

melphalan hydrochloride/sulfobutyl ether beta-cyclodextrin complex

A propylene glycol-free intravenous formulation containing the hydrochloride salt of the nitrogen mustard phenylalanine derivative melphalan complexed with polyanionic sulfobutyl ether beta-cyclodextrin (SBE-CD) with potential antineoplastic activity. Upon administration, melphalan is converted into highly reactive ethylenimmonium intermediates that induce covalent guanine N7-N7 intra- and inter-crosslinks and alkylation of adenine N3 of DNA; RNA and proteins may also be alkylated. Subsequently, RNA transcription and protein synthesis are inhibited, resulting in cell growth arrest. The addition of sulfobutyl ether beta-cyclodextrin to the formulation improves the solubility, stability and ease of use of melphalan; cyclodextrins are cyclic dextrins derived from starch.

membrane-disrupting peptide EP-100

A water-soluble, positively charged fusion protein consisting of a luteinizing hormone releasing hormone (LHRH) receptor-targeting ligand conjugated to the membrane-disrupting peptide CLIP 71 with membrane-disrupting and potential antineoplastic activities. The LHRH ligand moiety of membrane-disrupting peptide EP-100 specifically binds to LHRH receptors, which are upregulated on a variety of human cancer cell types. Subsequently, the positively charged CLIP 71 moiety of this agent interacts with the negatively charged membrane on the cancer cell surface, which may result in cell membrane disruption and cell lysis.

menadione topical lotion

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.

menatetrenone

A menaquinone compound and form of vitamin K2 with potential antineoplastic activity. Menatetrenone may act by modulating the signalling of certain tyrosine kinases, thereby affecting several transcription factors including c-myc and c-fos. This agent inhibits tumor cell growth by inducing apoptosis and cell cycle arrest.

menogaril

A semisynthetic derivative of the anthracycline antineoplastic antibiotic nogalamycin. Menogaril intercalates into DNA and interacts with topoisomerase II, thereby inhibiting DNA replication and repair and RNA and protein synthesis. This agent is less cardiotoxic than doxorubicin.

Menogarol

(Other name for: menogaril)

Meprolone

(Other name for: methylprednisolone)

Mercaptopurinum

(Other name for: mercaptopurine)

meropenem

A broad-spectrum carbapenem with antibacterial properties, synthetic Meropenem inhibits cell wall synthesis in gram-positive and gram-negative bacteria. It penetrates cell walls and binds to penicillin-binding protein targets. Meropenem acts against aerobes and anaerobes including Klebsiella, E. coli, Enterococcus, Clostridium sp..

Merrem I.V.

(Other name for: meropenem)

Mesnex

(Other name for: mesna)

mesothelioma tumor lysate-pulsed autologous dendritic cell vaccine

A cell-based cancer vaccine consisting of autologous dendritic cells (DCs) pulsed with mesothelioma tumor lysate with potential immunostimulating and antineoplastic activities. Upon administration, mesothelioma tumor lysate-pulsed autologous dendritic cell vaccine may stimulate the host immune system to mount a specific cytotoxic T lymphocyte (CTL) response against mesothelioma tumor cells, resulting in tumor cell lysis.

MET receptor tyrosine kinase inhibitor SGX523

An orally bioavailable small molecule, belonging to the class of c-Met/hepatocyte growth factor receptor (HGFR) tyrosine kinase inhibitors, with potential antineoplastic activity. MET receptor tyrosine kinase inhibitor SGX523 specifically binds to c-Met protein, or hepatocyte growth factor receptor (HGFR), preventing binding of hepatocyte growth factor (HGF) and disrupting the MET signaling pathway; this agent may induce cell death in tumor cells expressing c-Met. c-Met, a receptor tyrosine kinase overexpressed or mutated in many tumor cell types, plays an important role in tumor cell proliferation, survival, invasion, and metastasis, and in tumor angiogenesis.

Met tyrosine kinase inhibitor BMS-777607

An inhibitor of MET tyrosine kinase with potential antineoplastic activity. MET tyrosine kinase inhibitor BMS-777607 binds to c-Met protein, or hepatocyte growth factor receptor (HGFR), preventing binding of hepatocyte growth factor (HGF) and disrupting the MET signaling pathway; this agent may induce cell death in tumor cells expressing c-Met. c-Met, a receptor tyrosine kinase overexpressed or mutated in many tumor cell types, plays an important role in tumor cell proliferation, survival, invasion, and metastasis, and in tumor angiogenesis.

MET tyrosine kinase inhibitor EMD 1204831

An inhibitor of the receptor tyrosine kinase MET (hepatocyte growth factor receptor) with potential antineoplastic activity. MET inhibitor EMD 1204831 selectively binds to MET tyrosine kinase, thereby disrupting MET-mediated signal transduction pathways. This may induce cell death in tumor cells overexpressing this kinase. MET is overexpressed or mutated in many tumor cell types, and plays key roles in tumor cell proliferation, survival, invasion, and metastasis, and tumor angiogenesis.

MET tyrosine kinase inhibitor EMD 1214063

An inhibitor of MET tyrosine kinase with potential antineoplastic activity. MET tyrosine kinase inhibitor EMD 1214063 selectively binds to MET tyrosine kinase and disrupts MET signal transduction pathways, which may induce apoptosis in tumor cells overexpressing this kinase. The receptor tyrosine kinase MET (also known as hepatocyte growth factor receptor or HGFR), is the product of the proto-oncogene c-Met and is overexpressed or mutated in many tumor cell types; this protein plays key roles in tumor cell proliferation, survival, invasion, and metastasis, and tumor angiogenesis.

MET tyrosine kinase inhibitor PF-04217903

An orally bioavailabe, small-molecule tyrosine kinase inhibitor with potential antineoplastic activity. MET tyrosine kinase inhibitor PF-04217903 selectively binds to and inhibits mesenchymal epithelial transition (MET or c-Met), disrupting the c-Met signaling pathway, which may result in the inhibition of tumor cell growth, migration and invasion of tumor cells, and the induction of death in tumor cells expressing c-Met. The receptor tyrosine kinase c-Met, also known as hepatocyte growth factor (HGF) receptor, is overexpressed or mutated in many tumor cell types, playing an important role in tumor cell proliferation, survival, invasion, and metastasis and angiogenesis.

Metastat

(Other name for: incyclinide)

Metastron

(Other name for: strontium chloride Sr 89)

Methadose

(Other name for: methadone hydrochloride)

methanol extraction residue of BCG

A cell wall fraction of bacillus Calmette-Guerin (BCG) obtained by menthol extraction with immunomodulating properties and potential use in cancer immunotherapy.

methazolamide

A sulfonamide derivate and carbonic anhydrase inhibitor with potential antineoplastic activity. Methazolamide inhibits tumor-associated carbonic anhydrase IX (CAIX), which may result in increased cell death in hypoxic tumors. As a hypoxia-inducible transmembrane glycoprotein, CAIX catalyzes the rapid interconversion of carbon dioxide and water into carbonic acid, protons, and bicarbonate ions, helping to maintain acidification of the tumor microenvironment and enhance resistance to cytotoxic therapy in some hypoxic tumors.

Methazolastone

(Other name for: temozolomide)

methionine C 11

A synthetic amino acid radiolabeled with carbon-11. Acting as a methyl donor, methionine C 11 is incorporated into macromolecules, where it serves as a positron emission tomography (PET) imaging agent for detecting tumors with high rates of protein synthesis.

Methosarb

(Other name for: calusterone)

Methotrexate LPF

(Other name for: methotrexate)

methotrexate-e therapeutic implant

An injectable collagen matrix gel containing the antimetabolite methotrexate and the sympathicomimetic agent epinephrine with potential antineoplastic activity. After intratumoral injection, methotrexate binds to and inhibits the enzyme dihydrofolate reductase, resulting in inhibition of purine nucleotide and thymidylate synthesis and, subsequently, inhibition of DNA and RNA syntheses. Epinephrine, a potent vasoconstrictor, is added to the gel to enhance penetration of methotrexate into the tumor tissue and reduce dispersion to the surrounding tissues thereby enhancing the local concentration of methotrexate and increasing its anti-tumor activity. Intratumoral injection of methotrexate combined with epinephrine may potentially increase chemotherapeutic efficacy compared to systemic administration and reduce systemic toxicity and side effects.

methoxy polyethylene glycol epoetin beta

A pegylated form of recombinant human erythropoietin, a glycosylated protein naturally produced in the kidney that stimulates erythrocyte production in the bone marrow. Methoxypolyethylene glycol epoetin beta may reverse anemias induced by cancer therapy.

methoxyamine

An orally bioavailable small molecule inhibitor with potential adjuvant activity. Methoxyamine covalently binds to apurinic/apyrimidinic (AP) DNA damage sites and inhibits base excision repair (BER), which may result in an increase in DNA strand breaks and apoptosis. This agent may potentiate the anti-tumor activity of alkylating agents.

methyl-5-aminolevulinate hydrochloride cream

A topical cream formulation containing the hydrochloride salt of methyl-5-aminolevulinate, a lipophilic methyl ester of 5-aminolevulinic acid, with photosensitizer prodrug activity. Upon topical administration, methyl-5-aminolevulinate in the cream is selectively absorbed by tumor cells where it is converted to the photosensitizer protoporphyrin IX (PpIX). Upon photoirradiation, PpIX is activated and transfers energy to oxygen, generating singlet oxygen and superoxide and hydroxyl radicals, which may result in free-radical-mediated DNA damage and cell death.

methylene blue

A synthetic basic dye. Methylene blue stains to negatively charged cell components like nucleic acids; when administered in the lymphatic bed of a tumor during oncologic surgery, methylene blue may stain lymph nodes draining from the tumor, thereby aiding in the visual localization of tumor sentinel lymph nodes. When administered intravenously in low doses, this agent may convert methemoglobin to hemoglobin.

methylene dimethane sulfonate

A member of the homologous series of dimethane sulphonic acid esters with alkylating properties. Methylene dimethane sulfonate alkylates DNA, resulting in interstrand DNA crosslinking, inhibition of DNA replication, disruption of the cell cycle, and cell death.

methylmercaptopurine riboside

A purine derivative with antineoplastic and anti-angiogenic properties. 6-methylmercaptopurine riboside (6-MMPR) inhibits amidophosphoribosyltransferase, the first committed step in de novo purine synthesis, and inhibits fibroblast growth factor-2 (FGF2)-induced cell proliferation.

Meti-derm

(Other name for: prednisolone)

metoclopramide hydrochloride

The hydrochloride salt of the substituted benzamide metoclopramide, a para-aminobenzoic acid (PABA) derivative that is structurally related to procainamide, with gastroprokinetic and antiemetic activities. Metoclopramide binds to dopamine 2 (D2) receptors in the peripheral nervous system (PNS), antagonizing dopamine-mediated relaxation of gastrointestinal smooth muscle and promoting gastroprokinesis; the pyloric sphincter and the duodenal bulb are relaxed, peristalsis of the duodenum and jejunum increase, and gastric emptying and intestinal transit accelerate. This agent may also increase the resting tone of the lower esophagus sphincter (LES), preventing acid reflux. In the central nervous system (CNS), metoclopramide antagonizes D2 dopamine receptors in the chemoreceptive trigger zone (CTZ) of the medulla, thereby preventing nausea and vomiting.

metoprine

A diaminopyrimidine folate antagonist with potential antineoplastic activity. Metoprine inhibits dihydrofolate reductase, resulting in decreased cellular folate metabolism and cell growth; it also inhibits histamine-N-methyltransferase, resulting in decreased histamine catabolism. Lipid-soluble metoprine is capable of crossing the blood-brain barrier.

metoprolol

A cardioselective competitive beta-1 adrenergic receptor antagonist with antihypertensive properties and devoid of intrinsic sympathomimetic activity. Metoprolol antagonizes beta 1-adrenergic receptors in the myocardium, thereby reducing the rate and force of myocardial contraction leading to a reduction in cardiac output. This agent may also reduce the secretion of renin with subsequent reduction in levels of angiotensin II thereby preventing vasoconstriction and aldosterone secretion.

Metro I.V.

(Other name for: metronidazole hydrochloride)

Metrocort

(Other name for: methylprednisolone)

metronidazole hydrochloride

The hydrochloride salt of a synthetic nitroimidazole derivative with antiprotozoal and antibacterial activities. Although its mechanism of action is not fully elucidated, un-ionized metronidazole is readily taken up by obligate anaerobic organisms and is subsequently reduced by low-redox potential electron-transport proteins to an active, intermediate product. Reduced metronidazole causes DNA strand breaks, thereby inhibiting DNA synthesis and bacterial cell growth.

Metvixia cream

(Other name for: methyl-5-aminolevulinate hydrochloride cream)

Metypred

(Other name for: methylprednisolone)

metyrosine

A methylated tyrosine, a catecholamine synthesis antagonist with antihypertensive property. Metyrosine competitively inhibits tyrosine 3-monooxygenase, an enzyme that activates molecular oxygen to catalyze the hydroxylation of tyrosine to dihydroxyphenylalanine (Dopa), an intermediate to catecholamine (dopamine, norepinephrine, and epinephrine) production. This agent reduces the elevated levels of catecholamines associated with pheochromocytoma, thereby preventing hypertension.