Search results for "mir-34a"

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An epistatic mini-circuitry between the transcription factors Snail and HNF4α controls liver stem cell and hepatocyte features exhorting opposite reg…

2011

Preservation of the epithelial state involves the stable repression of epithelial-to-mesenchymal transition program, whereas maintenance of the stem compartment requires the inhibition of differentiation processes. A simple and direct molecular mini-circuitry between master elements of these biological processes might provide the best device to keep balanced such complex phenomena. In this work, we show that in hepatic stem cell Snail, a transcriptional repressor of the hepatocyte differentiation master gene HNF4α, directly represses the expression of the epithelial microRNAs (miRs)-200c and-34a, which in turn target several stem cell genes. Notably, in differentiated hepatocytes HNF4α, p…

Transcription GeneticTranscription FactorCellular differentiationLiver Stem CellSnailMESH: Mice KnockoutMESH: HepatocytesMice0302 clinical medicineSnail; hnf4a; mir-200; mir-34a; stemness; hepatocyte differentiationHepatocyteMESH: AnimalsMice KnockoutHepatocyte differentiationmir-34a0303 health sciencesStemneStem CellsMicroRNACell DifferentiationMESH: Transcription FactorsCell biologySnailmir-200Hepatocyte Nuclear Factor 4Liver030220 oncology & carcinogenesisMiRs-200MESH: Hepatocyte Nuclear Factor 4Hepatocyte differentiation; HNF4a; MiR-34a; MiRs-200; Snail; Stemness; Animals; Cell Differentiation; Epithelial-Mesenchymal Transition; Hepatocyte Nuclear Factor 4; Hepatocytes; Liver; Mice; Mice Knockout; MicroRNAs; Snail Family Transcription Factors; Stem Cells; Transcription Factors; Transcription Genetic; Cell Biology; Molecular BiologyStem cellhnf4aMESH: Cell Differentiationhepatocyte differentiationEpithelial-Mesenchymal TransitionMESH: Stem Cells[SDV.BC]Life Sciences [q-bio]/Cellular BiologyBiologystemness03 medical and health sciencesStem Cellbiology.animalAnimals[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyEpithelial–mesenchymal transitionMESH: MiceMolecular BiologyTranscription factor030304 developmental biologyOriginal PaperAnimalMESH: Transcription GeneticSnail Family Transcription FactorCell BiologyMolecular biologyMicroRNAsMESH: Epithelial-Mesenchymal TransitionHepatocyte nuclear factor 4HepatocytesSnail Family Transcription FactorsMESH: MicroRNAsMESH: LiverTranscription FactorsCell Death & Differentiation
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Prognostic significance of miR-34a in Ewing sarcoma is associated with cyclin D1 and ki-67 expression.

2014

ABSTRACT Background At diagnosis, identification of reliable biological indicators of prognosis to allow stratification of patients according to different risks is an important but still unresolved aspect in the treatment of Ewing sarcoma (EWS) patients. This study aimed to explore the role of miR-34A expression on prognosis of EWS patients. Patients and methods Specimens from 109 patients with non-metastatic EWS treated at the Rizzoli Institute with neoadjuvant chemotherapy (protocols ISG/SSGIII, EW-1, EW-2, EW-REN2, EW-REN3, EW-PILOT) and 17 metastases were studied. Sixty-eight patients (62%) remained disease-free and 41 (38%) relapsed (median follow-up: 67 months, range 9–241 months). Ex…

AdultMalePrognosiHydro-Lyasemedicine.medical_treatmentSarcoma EwingDisease-Free SurvivalCyclin D1medicineHumansCyclin D1Neoplasm Metastasisprognostic biomarkerNeoadjuvant therapyHydro-LyasesAged 80 and overTissue microarraybiologybusiness.industryProportional hazards modelMedicine (all)Ewing's sarcomaMicroRNAHematologyMiddle Agedmedicine.diseasePrognosisNeoadjuvant TherapyNeoplasm MetastasiGene Expression Regulation NeoplasticMicroRNAsKi-67 AntigenTreatment OutcomeOncologyDrug Resistance NeoplasmKi-67biology.proteinCancer researchKi-67ImmunohistochemistryFemaleSarcomacyclin D1; Ewing sarcoma; Ki-67; miR-34a; prognostic biomarkers; Adult; Aged 80 and over; Cyclin D1; Disease-Free Survival; Drug Resistance Neoplasm; Female; Gene Expression Regulation Neoplastic; Humans; Hydro-Lyases; Ki-67 Antigen; Male; MicroRNAs; Middle Aged; Neoadjuvant Therapy; Neoplasm Metastasis; Prognosis; Sarcoma Ewing; Treatment Outcome; Medicine (all)businessEwing sarcomamiR-34aHumanAnnals of oncology : official journal of the European Society for Medical Oncology
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