0000000000238723

AUTHOR

Nathalie Franche

showing 2 related works from this author

The impact of tumor nitric oxide production on VEGFA expression and tumor growth in a zebrafish rat glioma xenograft model.

2015

International audience; To investigate the effect of nitric oxide on tumor development, we established a rat tumor xenograft model in zebrafish embryos. The injected tumor cells formed masses in which nitric oxide production could be detected by the use of the cell-permeant DAF-FM-DA (diaminofluorophore 4-amino-5-methylamino-2'-7'-difluorofluorescein diacetate) and DAR-4M-AM (diaminorhodamine-4M). This method revealed that nitric oxide production could be co-localized with the tumor xenograft in 46% of the embryos. In 85% of these embryos, tumors were vascularized and blood vessels were observed on day 4 post injection. Furthermore, we demonstrated by qRT-PCR that the transplanted glioma ce…

Vascular Endothelial Growth Factor AMESH: Cyclin D1lcsh:MedicineMESH : Analysis of VarianceMESH: Flow Cytometry[ SDV.IMM.IA ] Life Sciences [q-bio]/Immunology/Adaptive immunologyBenzoates[SDV.IMM.II]Life Sciences [q-bio]/Immunology/Innate immunity[ SDV.CAN ] Life Sciences [q-bio]/CancerMESH: GliomaMESH: Reverse Transcriptase Polymerase Chain ReactionCyclin D1MESH: Animalslcsh:ScienceZebrafishMESH : RatsReverse Transcriptase Polymerase Chain ReactionMESH: Real-Time Polymerase Chain ReactionHistological TechniquesMESH : Reverse Transcriptase Polymerase Chain ReactionImidazolesGliomaMESH: Gene Expression Regulation NeoplasticFlow CytometryMESH : Cyclin D1Gene Expression Regulation NeoplasticMESH : Nitric Oxide[SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunologyMESH : Vascular Endothelial Growth Factor AHeterograftsMESH : Histological TechniquesMESH: ImidazolesResearch ArticleMESH : BenzoatesMESH: RatsMESH : Flow CytometryMESH : Gene Expression Regulation NeoplasticMESH : Real-Time Polymerase Chain ReactionMESH : Zebrafish[SDV.CAN]Life Sciences [q-bio]/CancerMESH: Histological TechniquesMESH : HeterograftsNitric OxideReal-Time Polymerase Chain ReactionMESH : ImidazolesMESH: Analysis of VarianceAnimalsMESH: Zebrafish[ SDV.IMM.II ] Life Sciences [q-bio]/Immunology/Innate immunityAnalysis of VarianceMESH: Vascular Endothelial Growth Factor Alcsh:RMESH: BenzoatesRatsMESH : GliomaMESH: Nitric Oxidelcsh:QMESH: HeterograftsMESH : Animals
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Comparative analysis of zebrafish nos2a and nos2b genes

2008

Abstract Nitric oxide synthase (NOS) produces nitric oxide (NO) from arginine. Three NOS isoforms have been identified in mammals, namely a neuronal (NOS1), an inducible (NOS2) and an endothelial (NOS3) enzyme. In zebrafish genome, one nos1 gene and two nos2 genes (nos2a and nos2b) were observed. We cloned zebrafish nos2a cDNA and compared nos2a and nos2b sequences, expression and inducibility. When analyzed by reverse transcription-PCR, the expression of nos2a remained very low during initial development, then increased at 96 hpf, while nos2b was expressed from 6 hpf and subsequently remained stable. Expression of nos2a is detected in the head, eye and gut regions by WISH experiments perfo…

Gene isoformEmbryo Nonmammaliananimal structuresNOS1Molecular Sequence DataNitric Oxide Synthase Type IISyntenyGene Expression Regulation EnzymologicGene DuplicationComplementary DNAparasitic diseasesGene duplicationGeneticsAnimalsAmino Acid SequenceCloning MolecularGeneZebrafishCells CulturedPhylogenyZebrafishSequence Homology Amino AcidbiologyRegeneration (biology)fungiGene Expression Regulation DevelopmentalGeneral Medicinebiology.organism_classificationMolecular biologyIsoenzymesNitric oxide synthasebiology.proteinGene
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