0000000000025367

AUTHOR

Guido Gambara

showing 2 related works from this author

Tumorigenic and metastatic activity of human thyroid cancer stem cells

2010

Abstract Thyroid carcinoma is the most common endocrine malignancy and the first cause of death among endocrine cancers. We show that the tumorigenic capacity in thyroid cancer is confined in a small subpopulation of stem-like cells with high aldehyde dehydrogenase (ALDHhigh) activity and unlimited replication potential. ALDHhigh cells can be expanded indefinitely in vitro as tumor spheres, which retain the tumorigenic potential upon delivery in immunocompromised mice. Orthotopic injection of minute numbers of thyroid cancer stem cells recapitulates the behavior of the parental tumor, including the aggressive metastatic features of undifferentiated thyroid carcinomas, which are sustained by…

OncologyMaleCancer ResearchLung NeoplasmsPapillaryNudeMessengerThyroid GlandFluorescent Antibody TechniqueTYROSINE KINASEMice SCIDCell TransformationImmunoenzyme TechniquesMiceMice Inbred NODCell MovementAdenocarcinoma FollicularThyroid cancerRADIOACTIVE IODINETumor Stem Cell AssayEPITHELIAL-MESENCHYMAL TRANSITION; ALDEHYDE DEHYDROGENASE-ACTIVITY; ACUTE MYELOID-LEUKEMIA; RADIOACTIVE IODINE; TYROSINE KINASE; LUNG-CANCER; CARCINOMA; RECEPTOR; GROWTH; DIFFERENTIATIONBlottingReverse Transcriptase Polymerase Chain ReactionThyroidMiddle AgedProto-Oncogene Proteins c-metFlow CytometryEPITHELIAL-MESENCHYMAL TRANSITIONmedicine.anatomical_structureCell Transformation NeoplasticDIFFERENTIATIONOncologyNeoplastic Stem CellsAdenocarcinomaGROWTHFemaleStem cellWesternAdultmedicine.medical_specialtyBlotting WesternMice NudeACUTE MYELOID-LEUKEMIABiologyAdenocarcinomaSCIDALDEHYDE DEHYDROGENASE-ACTIVITYThyroid carcinomaYoung AdultLUNG-CANCERAdenocarcinoma Follicular; Adult; Aged; Aldehyde Dehydrogenase; Animals; Blotting Western; Carcinoma; Carcinoma Papillary; Case-Control Studies; Cell Adhesion; Cell Movement; Cell Proliferation; Cell Transformation Neoplastic; Female; Flow Cytometry; Fluorescent Antibody Technique; Humans; Immunoenzyme Techniques; Lung Neoplasms; Male; Mice; Mice Inbred NOD; Mice Nude; Mice SCID; Middle Aged; Neoplasm Invasiveness; Neoplastic Stem Cells; Proto-Oncogene Proteins c-akt; Proto-Oncogene Proteins c-met; RNA Messenger; Reverse Transcriptase Polymerase Chain Reaction; Thyroid Gland; Thyroid Neoplasms; Tumor Stem Cell Assay; Xenograft Model Antitumor Assays; Young Adult; Cancer Research; OncologyCancer stem cellSettore MED/04 - PATOLOGIA GENERALEInternal medicinemedicineCell AdhesionAnimalsHumansNeoplasm InvasivenessRNA MessengerThyroid NeoplasmsALDH Human Thyroid Cancer Stem CellsAgedCell ProliferationNeoplasticRECEPTORCarcinomaFollicularTumor Stem Cell AssayCancerAldehyde Dehydrogenasemedicine.diseaseXenograft Model Antitumor AssaysCarcinoma PapillaryCase-Control StudiesInbred NODRNAProto-Oncogene Proteins c-akt
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Dynamic regulation of the cancer stem cell compartment by Cripto-1 in colorectal cancer.

2015

Stemness was recently depicted as a dynamic condition in normal and tumor cells. We found that the embryonic protein Cripto-1 (CR1) was expressed by normal stem cells at the bottom of colonic crypts and by cancer stem cells (CSCs) in colorectal tumor tissues. CR1-positive populations isolated from patient-derived tumor spheroids exhibited increased clonogenic capacity and expression of stem-cell-related genes. CR1 expression in tumor spheroids was variable over time, being subject to a complex regulation of the intracellular, surface and secreted protein, which was related to changes of the clonogenic capacity at the population level. CR1 silencing induced CSC growth arrest in vitro with a …

Colorectal cancerColorectal NeoplasmCriptoMiceIntercellular Signaling Peptides and ProteinTumor Cells CulturedRegulation of gene expressionCulturedstem cell; CRIPTO 1GPI-Linked ProteinCell biologyNeoplasm ProteinsTumor CellsGene Expression Regulation NeoplasticGenes srcNeoplastic Stem CellsIntercellular Signaling Peptides and ProteinsFemaleStem cellColorectal NeoplasmsHumanSignal Transductioncolorectal cancerBiologyGPI-Linked ProteinsAnimals; Colorectal Neoplasms; Female; GPI-Linked Proteins; Gene Expression Regulation Neoplastic; Genes src; Humans; Intercellular Signaling Peptides and Proteins; Mice; Neoplasm Proteins; Neoplastic Stem Cells; Proto-Oncogene Proteins c-akt; Signal Transduction; Spheroids Cellular; Tumor Cells Cultured; Cell Biology; Molecular BiologyNeoplasm ProteinCancer stem cellSettore MED/04 - PATOLOGIA GENERALESpheroids CellularmedicineGene silencingAnimalsHumansClonogenic assayProtein kinase BMolecular BiologysrcOriginal PaperNeoplasticAnimalCell Biologymedicine.diseaseGene Expression RegulationGenesNeoplastic Stem CellCellularSpheroidsanimals; colorectal neoplasms; female; GPI-linked proteins; gene expression regulation; neoplastic; genes src; humans; intercellular signaling peptides and proteins; mice; neoplasm proteins; neoplastic stem cells; proto-oncogene proteins c-akt; signal transduction; spheroids; cellular; tumor cells; culturedAnimals; Colorectal Neoplasms; Female; GPI-Linked Proteins; Gene Expression Regulation Neoplastic; Genes src; Humans; Intercellular Signaling Peptides and Proteins; Mice; Neoplasm Proteins; Neoplastic Stem Cells; Proto-Oncogene Proteins c-akt; Signal Transduction; Spheroids Cellular; Tumor Cells Cultured; Molecular Biology; Cell BiologyProto-Oncogene Proteins c-akt
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