Search results for "Photochemotherapeutic agent"

showing 5 items of 5 documents

THIOPYRANO[2,3-E]INDOL-2-ONES: ANGELICIN HETEROANALOGUES WITH POTENT PHOTOANTIPROLIFERATIVE ACTIVITY

2008

A new class of compounds, the thiopyrano[2,3-e]indol-2-ones, bioisosters of the angular furocoumarin angelicin, was synthesized with the aim of obtaining new photochemotherapeutic agents. In particular 7,8-dimethyl-thiopyranoindolone 6c s showed a remarkable phototoxicity and a great dose UVA dependence reaching IC(50) values at submicromolar level. This latter photoinduced a massive apoptosis and a remarkable photodamage to lipids and proteins. Although it did not intercalate DNA, it was able to cause photooxidation of DNA bases.

IndolesStereochemistryDNA damageUltraviolet RaysAngelicinThiopyrano[23-e ]indol-2-oneClinical BiochemistryPharmaceutical ScienceHL-60 CellsApoptosisThiopyrano[2Antiproliferative activityBiochemistryChemical synthesischemistry.chemical_compoundInhibitory Concentration 50Jurkat CellsAngelicinPhotochemotherapeutic agentsFurocoumarinsDrug DiscoveryThiolactoneTumor Cells CulturedHumansPhotosensitizer3-e ]indol-2-onesMolecular BiologyPhotosensitizing AgentsFurocoumarinOrganic ChemistryProteinsBiological activityThiopyrano[2; 3-e ]indol-2-ones; Angelicin; Antiproliferative activity; Photochemotherapeutic agents; ApoptosisDNASettore CHIM/08 - Chimica FarmaceuticaMitochondriachemistryPhotochemotherapeutic agentMolecular MedicineLipid PeroxidationPhototoxicityDNA Damage
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PHOTOCHEMOTHERAPEUTIC AGENTS: DESIGN, SYNTHESIS AND ANTITUMOR ACTIVITY

2009

PHOTOCHEMOTHERAPEUTIC AGENTS
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Pyrrolo[3,2-h]quinazolines as Photochemotherapeutic Agents

2011

Heteroanalogues of angelicin, pyrrolo[3,2-h]quinazolines, were synthesized with the aim of obtaining new potent photochemotherapeutic agents. Many derivatives caused a significant decrease in cell proliferation in several human tumor cell lines after irradiation with UVA light (GI(50) =15.2-0.2 μM). Their phototoxicity effected apoptosis in Jurkat cells with the involvement of mitochondria (as determined by the loss of mitochondrial membrane potential and production of reactive oxygen species) and lysosomes. The phototoxicity of these compounds could be explained by lipid peroxidation.

Pyrrolo[3; 2-h]quinazolines; Angelicin; Photochemotherapeutic AgentsAngelicinUltraviolet RaysApoptosisMitochondrion2-h]quinazolinesBiochemistryJurkat cellsLipid peroxidationStructure-Activity Relationshipchemistry.chemical_compoundAngelicinCell Line TumorFurocoumarinsPhotochemotherapeutic AgentsDrug DiscoveryHumansPyrrolo[32-h]quinazolinePyrrolesPyrrolo[3General Pharmacology Toxicology and PharmaceuticsPharmacologychemistry.chemical_classificationReactive oxygen speciesPhotosensitizing AgentsOrganic ChemistrySettore CHIM/08 - Chimica FarmaceuticachemistryBiochemistryApoptosisCell cultureQuinolinesMolecular MedicineDrug Screening Assays AntitumorReactive Oxygen SpeciesPhototoxicityChemMedChem
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Pyrrolo[3,4-h]quinolinones a new class of photochemotherapeutic agents

2011

Abstract Pyrrolo[3,4- h ]quinolin-2-ones were synthesized as nitrogen isosters of the angular furocoumarin angelicin, with the aim of obtaining new photochemotherapeutic agents with increased antiproliferative activity and lower undesired toxic effects. A versatile synthetic pathway was approached to allow the isolation of derivatives of the new ring system with a good substitution pattern on the pyrrole moiety. Photobiological screenings of the new compounds revealed a potent phototoxic effect and a great UVA dose dependence, reaching IC 50 values at submicromolar level. The induced cellular photocytotoxicity was related to apoptosis with the involvement of mitochondria and lysosomes, alte…

Pyrrolo[3; 4-h]quinolinones; Angelicin heteroanalogues; Photochemotherapeutic agents; PhototoxicityStereochemistryClinical BiochemistryMembrane lipid peroxidationPharmaceutical ScienceHL-60 CellsPhosphatidylserinesQuinolonesMitochondrionBiochemistryPhototoxicityJurkat CellsStructure-Activity Relationshipchemistry.chemical_compoundPhotochemotherapeutic agentsAngelicinCell Line TumorDrug DiscoveryHumansMoietyFluorometryPyrrolesPyrrolo[3Molecular BiologyPyrrolePyrrolo[34-h]quinolinoneFurocoumarinCell CycleOrganic Chemistry4-h]quinolinonesDNAPhotochemical ProcessesSettore CHIM/08 - Chimica FarmaceuticaAngelicin heteroanaloguesPhotochemotherapeutic agentPhotochemotherapychemistryApoptosisMolecular MedicineLipid PeroxidationPhototoxicityAngelicin heteroanalogueSubcellular FractionsBioorganic & Medicinal Chemistry
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Photochemotherapeutic haterocyclic agents having antiproliferative and antineoplastic activity

2011

antiproliferative activityphotochemotherapeutic agentangelicinpyrrolo[32-h]quinolinonesSettore CHIM/08 - Chimica Farmaceutica
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