0000000000290629

AUTHOR

Iris Maria Forte

showing 5 related works from this author

In human osteosarcoma 3AB-OS cancer stem cells let-7d seems to have the dual function of oncogene/tumor-suppressor miRNA

2015

Introduction: Osteosarcoma (OS), an aggressive tumor a!ecting adolescents, shows therapy resistance and recurrence which can depend on cancer stem cells (CSCs), the source for tissue renewal and hold malignant potential; thus, OS treatment requires their eradication. Here, using 3AB-OS CSCs previously obtained from the OS-MG63 cells, we focused on the role of let-7d in managing stemness properties of 3AB-OS CSCs. Methods: 3AB-OS CSCs were stably transfected with pCDomH-plasmid, containing mir-let7-d, or empty vector as a control. Cell proliferation and viability were evaluated by EdU and Trypan blue assays, respectively. Sarcosphere and colony assays and wound healing and transwell invasion…

osteosarcoma cancer stem cells let-7d
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MicroRNA-29b-1 impairs in vitro cell proliferation, self‑renewal and chemoresistance of human osteosarcoma 3AB-OS cancer stem cells

2014

Osteosarcoma (OS) is the most common type of bone cancer, with a peak incidence in the early childhood. Emerging evidence suggests that treatments targeting cancer stem cells (CSCs) within a tumor can halt cancer and improve patient survival. MicroRNAs (miRNAs) have been implicated in the maintenance of the CSC phenotype, thus, identification of CSC-related miRNAs would provide information for a better understanding of CSCs. Downregulation of miRNA-29 family members (miR-29a/b/c; miR‑29s) was observed in human OS, however, little is known about the functions of miR-29s in human OS CSCs. Previously, during the characterization of 3AB-OS cells, a CSC line selected from human OS MG63 cells, we…

cancer stem cellsHomeobox protein NANOGCancer Research3AB-OS cells; Cancer stem cells; MicroRNA; MicroRNA-29b-1; Multidrug resistance; Osteosarcoma; Bone Neoplasms; Cell Line Tumor; Cell Movement; Cell Proliferation; Drug Resistance Neoplasm; Gene Expression Regulation Neoplastic; Humans; MicroRNAs; Neoplasm Invasiveness; Osteosarcoma; Cancer Research; OncologyDrug ResistanceBone NeoplasmsBiologyCell LineSOX2multidrug resistanceCell MovementCancer stem cellCell Line TumorSettore BIO/10 - BiochimicamicroRNAmedicineHumansNeoplasm InvasivenessClonogenic assaymicroRNA-29b-1Cell ProliferationNeoplasticOsteosarcomaTumormicroRNAOncogeneCancer3AB-OS cellsArticlesCell cyclemedicine.diseaseGene Expression Regulation Neoplasticosteosarcoma cancer stem cells microRNA microRNA-29b-1 multidrug resistance 3AB-OS cellsMicroRNAsGene Expression RegulationOncologyDrug Resistance NeoplasmImmunologyCancer researchNeoplasm
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Modeling human osteosarcoma in mice through 3AB‐OS cancer stem cell xenografts

2012

Osteosarcoma is the second leading cause of cancer-related death for children and young adults. In this study, we have subcutaneously injected—with and without matrigel—athymic mice (Fox1nu/nu) with human osteosarcoma 3AB-OS pluripotent cancer stem cells (CSCs), which we previously isolated from human osteosarcoma MG63 cells. Engrafted 3AB-OS cells were highly tumorigenic and matrigel greatly accelerated both tumor engraftment and growth rate. 3AB-OS CSC xenografts lacked crucial regulators of beta-catenin levels (E-cadherin, APC, and GSK-3beta), and crucial factors to restrain proliferation, resulting therefore in a strong proliferation potential. During the first weeks of engraftment 3AB-…

MaleIntegrin beta ChainsXENOGRAFTNudeAnimals; Bone Neoplasms; Collagen; Drug Combinations; Focal Adhesion Kinase 1; Gene Expression Regulation Neoplastic; Humans; Injections Subcutaneous; Integrin beta Chains; Laminin; Male; Mice; Mice Nude; Neoplasm Transplantation; Neoplastic Stem Cells; Osteosarcoma; Pluripotent Stem Cells; Proteoglycans; Proto-Oncogene Proteins c-akt; Signal Transduction; Transplantation Heterologous; Tumor Markers Biological3AB-OS CSCSBiochemistryMiceInduced pluripotent stem cellTumor MarkersOsteosarcomaHeterologousSubcutaneousXIAPGene Expression Regulation NeoplasticDrug CombinationsANIMAL MODELSNeoplastic Stem CellsOsteosarcomaProteoglycansCollagenMATRIGELSignal TransductionPluripotent Stem CellsInjections SubcutaneousTransplantation HeterologousMice NudeBone NeoplasmsBiologyInjectionsCyclin D2Cancer stem cellBiomarkers TumormedicineAnimalsHumansMolecular BiologyProtein kinase BNeoplasticTransplantationMatrigelMesenchymal stem cellCell BiologyBiologicalmedicine.disease3AB-OS CSCS; OSTEOSARCOMA; XENOGRAFT; MATRIGEL; ANIMAL MODELSGene Expression RegulationFocal Adhesion Kinase 1ImmunologyCancer researchLamininProto-Oncogene Proteins c-aktNeoplasm TransplantationJournal of Cellular Biochemistry
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Let-7d miRNA Shows Both Antioncogenic and Oncogenic Functions in Osteosarcoma-Derived 3AB-OS Cancer Stem Cells

2016

Osteosarcoma (OS), an aggressive highly invasive and metastatic bone-malignancy, shows therapy resistance and recurrence, two features that likely depend on cancer stem cells (CSCs), which hold both self-renewing and malignant potential. So, effective anticancer therapies against OS should specifically target and destroy CSCs. We previously found that the let-7d microRNA was downregulated in the 3AB-OS-CSCs, derived from the human OS-MG63 cells. Here, we aimed to assess whether let-7d modulation affected tumorigenic and stemness properties of these OS-CSCs. We found that let-7d-overexpression reduced cell proliferation by decreasing CCND2 and E2F2 cell-cycle-activators and increasing p21 an…

0301 basic medicineHomeobox protein NANOGPhysiologyClinical BiochemistryCell BiologyCell cycleBiologymedicine.diseaseBioinformaticsCXCR403 medical and health sciences030104 developmental biologySOX2Cancer stem cellmicroRNAmedicineCancer researchOsteosarcomaEpithelial–mesenchymal transitionJournal of Cellular Physiology
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Let-7d miRNA Shows Both Antioncogenic and Oncogenic Functions in Osteosarcoma-Derived 3AB-OS Cancer Stem Cells

2015

Osteosarcoma (OS), an aggressive highly invasive and metastatic bone-malignancy, shows therapy resistance and recurrence, two features that likely depend on cancer stem cells (CSCs), which hold both self-renewing and malignant potential. So, effective anticancer therapies against OS should specifically target and destroy CSCs. We previously found that the let-7d microRNA was downregulated in the 3AB-OS-CSCs, derived from the human OS-MG63 cells. Here, we aimed to assess whether let-7d modulation affected tumorigenic and stemness properties of these OS-CSCs. We found that let-7d-overexpression reduced cell proliferation by decreasing CCND2 and E2F2 cell-cycle-activators and increasing p21 an…

Time FactorsEpithelial-Mesenchymal TransitionTime FactorTranscription FactorPhysiologyClinical BiochemistryDrug ResistanceAntineoplastic AgentsApoptosisBone NeoplasmsCell Cycle ProteinsBone NeoplasmTransfectionCell LineAntineoplastic AgentCell MovementCell Line TumorCell Cycle ProteinHumansNeoplasm InvasivenessCell Self RenewalAntineoplastic Agents; Apoptosis; Apoptosis Regulatory Proteins; Bone Neoplasms; Cell Cycle; Cell Cycle Proteins; Cell Line Tumor; Cell Movement; Cell Self Renewal; Drug Resistance Neoplasm; Epithelial-Mesenchymal Transition; Gene Expression Regulation Neoplastic; Humans; MicroRNAs; Neoplasm Invasiveness; Neoplastic Stem Cells; Osteosarcoma; Phenotype; Signal Transduction; Time Factors; Transcription Factors; Transfection; Physiology; Medicine (all); Clinical Biochemistry; Cell BiologyNeoplasm InvasiveneNeoplasticOsteosarcomaTumorApoptosis Regulatory ProteinMedicine (all)Cell CycleApoptosiMicroRNACell BiologyGene Expression Regulation NeoplasticMicroRNAsPhenotypeGene Expression RegulationDrug Resistance NeoplasmNeoplastic Stem CellsNeoplasmNeoplastic Stem CellApoptosis Regulatory ProteinsTranscription FactorsHumanSignal Transduction
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