Search results for "tumor-growth"

showing 4 items of 4 documents

AP2α controls the dynamic balance between miR-126&126* and miR-221&222 during melanoma progression

2016

Accumulating evidences have shown the association between aberrantly expressed microRNAs (miRs) and cancer, where these small regulatory RNAs appear to dictate the cell fate by regulating all the main biological processes. We demonstrated the responsibility of the circuitry connecting the oncomiR-221&222 with the tumor suppressors miR-126&126∗ in melanoma development and progression. According to the inverse correlation between endogenous miR-221&222 and miR-126&126∗, respectively increasing or decreasing with malignancy, their enforced expression or silencing was sufficient for a reciprocal regulation. In line with the opposite roles of these miRs, protein analyses confirmed the reverse ex…

0301 basic medicineCancer ResearchCellular differentiationSettore MED/08 - Anatomia Patologicagrowth-factorCell fate determinationBiologyFatty Acid-Binding ProteinsBioinformaticsap-2 transcription factorlaw.inventioncutaneous melanoma03 medical and health sciencesMolecular Biology; Cancer Research; Genetics0302 clinical medicinelawTranscription (biology)Cell Line TumormicroRNAGeneticsmedicineHumansGene silencingMelanomaMolecular BiologyPsychological repressionsquamous-cell carcinoma; ap-2 transcription factor; cutaneous melanoma; growth-factor; metastatic melanoma; terminal fragment; cancer-cells; tumor-growth; mir-126; methylationMelanomaCell Differentiationsquamous-cell carcinomatumor-growthmedicine.diseaseMicroRNAscancer-cells030104 developmental biologyterminal fragmentmir-126030220 oncology & carcinogenesisDisease ProgressionCancer researchSuppressorOriginal Articlemethylationmetastatic melanomaOncogene
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CD73-generated extracellular adenosine in chronic lymphocytic leukemia creates local conditions counteracting drug-induced cell death

2011

Abstract Extracellular adenosine (ADO), generated from ATP or ADP through the concerted action of the ectoenzymes CD39 and CD73, elicits autocrine and paracrine effects mediated by type 1 purinergic receptors. We have tested whether the expression of CD39 and CD73 by chronic lymphocytic leukemia (CLL) cells activates an adenosinergic axis affecting growth and survival. By immunohistochemistry, CD39 is widely expressed in CLL lymph nodes, whereas CD73 is restricted to proliferation centers. CD73 expression is highest on Ki-67+ CLL cells, adjacent to T lymphocytes, and is further localized to perivascular areas. CD39+/CD73+ CLL cells generate ADO from ADP in a time- and concentration-dependen…

AdenosineCellular differentiationChronic lymphocytic leukemia5'-Nucleotidase; Adenosine; Adenosine Diphosphate; Adenosine Triphosphate; Antigens CD; Antineoplastic Agents Phytogenic; Apyrase; Autocrine Communication; Cell Death; Cell Differentiation; Cell Movement; Cell Survival; Etoposide; Extracellular Space; GPI-Linked Proteins; Humans; Leukemia Lymphocytic Chronic B-Cell; Paracrine Communication; Receptor Adenosine A2A; Tumor Cells Cultured; Biochemistry; Immunology; Hematology; Cell BiologyMICROENVIRONMENTCD38BiochemistryACTIVATIONAdenosine TriphosphateCell MovementPhytogenichemic and lymphatic diseasesTumor Cells CulturedChronic5'-NucleotidaseEtoposideLeukemiaCulturedCell DeathTUMOR-GROWTHApyrasePurinergic receptorCell DifferentiationHematologyLymphocyticCDTumor CellsCell biologyAdenosine DiphosphateAutocrine CommunicationLeukemiaReceptorIMMUNE SUPPRESSIONReceptor Adenosine A2ACell SurvivalImmunologyAntineoplastic AgentsAdenosinergicBiologyGPI-Linked ProteinsDAMAGE-INDUCED APOPTOSISAdenosine A2AParacrine signallingAntigens CDParacrine CommunicationmedicineHumansAntigensAutocrine signallingImmunobiologyB-CellCell BiologyDAMAGE-INDUCED APOPTOSIS; T-CELLS; IMMUNE SUPPRESSION; ZAP-70 EXPRESSION; TUMOR-GROWTH; RECEPTOR; CD73; ACTIVATION; CD38; MICROENVIRONMENTmedicine.diseaseAntineoplastic Agents PhytogenicLeukemia Lymphocytic Chronic B-CellSettore MED/15 - MALATTIE DEL SANGUET-CELLSCD73Extracellular SpaceZAP-70 EXPRESSIONCD38Blood
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Breast cancer stem cells rely on fermentative glycolysis and are sensitive to 2-deoxyglucose treatment

2014

A number of studies suggest that cancer stem cells are essential for tumour growth, and failure to target these cells can result in tumour relapse. As this population of cells has been shown to be resistant to radiation and chemotherapy, it is essential to understand their biology and identify new therapeutic approaches. Targeting cancer metabolism is a potential alternative strategy to counteract tumour growth and recurrence. Here we applied a proteomic and targeted metabolomic analysis in order to point out the main metabolic differences between breast cancer cells grown as spheres and thus enriched in cancer stem cells were compared with the same cells grown in adherent differentiating c…

Cancer ResearchImmunologyPopulationPyruvate KinaseBreast NeoplasmsOxidative phosphorylationBiologyDeoxyglucoseOxidative PhosphorylationCellular and Molecular Neurosciencechemistry.chemical_compoundPYRUVATE-KINASE M2Cancer stem cellLactate dehydrogenaseCell Line TumorHumansGlycolysiseducationSettore BIO/10 - BIOCHIMICASettore MED/04 - Patologia Generaleeducation.field_of_studyL-Lactate DehydrogenaseCell growthTUMOR-GROWTHSettore BIO/12Cell BiologyCell biologychemistry2-deoxyglucose BCSCNeoplastic Stem CellsFemaleOriginal ArticleStem cellGlycolysisPyruvate kinase
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Hierarchical imaging and computational analysis of three-dimensional vascular network architecture in the entire postnatal and adult mouse brain

2021

The formation of new blood vessels and the establishment of vascular networks are crucial during brain development, in the adult healthy brain, as well as in various diseases of the central nervous system. Here, we describe a step-by-step protocol for our recently developed method that enables hierarchical imaging and computational analysis of vascular networks in postnatal and adult mouse brains. The different stages of the procedure include resin-based vascular corrosion casting, scanning electron microscopy, synchrotron radiation and desktop microcomputed tomography imaging, and computational network analysis. Combining these methods enables detailed visualization and quantification of t…

Vessel networkBiochemistry & Molecular BiologyBrain developmentBrain vasculatureScanning electron microscopeComputer sciencePoint densityCentral nervous systemVascular volumeGenetics and Molecular BiologyINTUSSUSCEPTIVE ANGIOGENESISINHIBITS TUMOR-GROWTHTortuosityBiochemical Research MethodsSCANNING-ELECTRON-MICROSCOPYGeneral Biochemistry Genetics and Molecular BiologyBLOOD-VESSELSSPROUTING ANGIOGENESIS10180 Clinic for NeurosurgeryNEUROVASCULAR UNIT1300 General Biochemistry Genetics and Molecular Biologymedicine10237 Institute of Biomedical EngineeringComputational analysisAdult stageMICROVASCULAR NETWORKSIntussusceptive angiogenesisSprouting angiogenesisScience & TechnologySTRUCTURAL ADAPTATIONCOCHLEAR VASCULATUREMOLECULAR-MECHANISMS10177 Dermatology Clinic10081 Institute of Veterinary Physiology10124 Institute of Molecular Life SciencesVessel diametermedicine.anatomical_structureVascular network10036 Medical ClinicGeneral Biochemistry570 Life sciences; biologyLife Sciences & BiomedicinePerfusionBiomedical engineering
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