Search results for "human breast cancer"

showing 2 items of 2 documents

Insight on pyrimido[5,4-g]indolizine and pyrimido[4,5-c]pyrrolo[1,2-a]azepine systems as promising photosensitizers on malignant cells

2022

Searching for new small molecules as photosensitizing agents, we have developed a class of twenty-five pyrimido[5,4-g]indolizine and pyrimido[4,5-c]pyrrolo[1,2-a]azepines with a good substitution pattern defining a versatile synthetic pathway to approach the title ring system. All compounds were evaluated for their photocytotoxicity on a triple negative human breast cancer cell line (MDA-MB-231) in the dark and under UVA light (2.0 J/cm2). The most effective compounds exhibited a photoantiproliferative activity with IC50 values up to nanomolar ranges. Interestingly, these new developed compounds showed high selectivity towards cancerous cells with respect to non-cancerous ones. Moreover, fo…

PharmacologyMDA-MB-231Triple negative human breast cancerOrganic ChemistryPhototoxic activityIndolizinesAntineoplastic AgentsApoptosisTriple Negative Breast Neoplasms4-g]indolizinespyrimido[4General MedicineAzepinespyrimido[54-g]indolizinespyrimido[45-c]pyrrolo[12-a]azepinesTriple negative human breast cancerMDA-MB-231Photosensitizing agentsPhototoxic activitypyrimido[5Photosensitizing agents5-c]pyrrolo[1pyrimido[45-c]pyrrolo[12-a]azepinesCell Line Tumor2-a]azepinesTriple negative human breast cancerMDA-MB-231Photosensitizing agentsPhototoxic activityDrug DiscoveryHumanspyrimido[54-g]indolizines
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Apollon gene silencing induces apoptosis in breast cancer cells via p53 stabilisation and caspase-3 activation

2009

We analysed the effects of small interfering RNA (siRNA)-mediated silencing of Apollon, a member of the inhibitors of apoptosis protein family, on the proliferative potential and ability of human breast cancer cell lines to undergo apoptosis. In wild-type p53 ZR75.1 cells, Apollon knockdown resulted in a marked, time-dependent decline of cell growth and an increased rate of apoptosis, which was associated with p53 stabilisation and activation of the mitochondrial-dependent apoptotic pathway. Pre-incubation of cells with a p53-specific siRNA resulted in a partial rescue of cell growth inhibition, as well as in a marked reduction of the apoptotic response, indicating p53 as a major player in …

p53Cancer ResearchSmall interfering RNAProgrammed cell deathcaspase-3ApollonCaspase 3Breast NeoplasmsApollon gene apoptosisBiologyModels BiologicalInhibitor of Apoptosis ProteinsRNA interferenceTumor Cells CulturedGene silencingHumansGene SilencingRNA Small InterferingCell Proliferationhuman breast cancerGene knockdownCell growthCaspase 3Protein StabilityapoptosisEnzyme ActivationOncologyApoptosissiRNACancer researchSettore BIO/14 - FarmacologiaFemaleTumor Suppressor Protein p53Translational Therapeutics
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