Search results for "3AB-OS CSCS"

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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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MiR-29b-1 expression impaired Cancer Stem-Like properties of human osteosarcoma 3AB-OS cells in vitro.

2013

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. Although microRNAs are frequently dysregulated in human cancers, if they influence OS malignancy and whether or not targeting CSC-associated microRNAs inhibit OS progression remain unclear. Recently (1), we described a predictive network for two downregulated miRNA family (let-7/98 and miR-29a,b,c) and their upregulated anticorrelated mRNAs. Here, we investigated in vitro the role of miR-29b-1 in regulating cell proliferation, clonogenic growth and che…

MiR-29b-1 3AB-OS CSCs Osteosarcoma
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