Search results for "SNPa"

showing 2 items of 2 documents

Imbalance between genomic gain and loss identifies high-risk neuroblastoma patients with worse outcomes

2021

Survival in high-risk neuroblastoma (HR-NB) patients remains poor despite multimodal treatment. We aimed to identify HR-NB patients with worse outcomes by analyzing the genomic instability derived from segmental chromosomal aberrations. We calculated 3 genomic instability indexes for primary tumor SNP array profiles from 127 HR-NB patients: (1) Copy number aberration burden (%gainslength+%losseslength), (2) copy number load (CNL) (%gainslength-%losseslength) and (3) net genomic load (NGL) (%gainsamount-%lossesamount). Tumors were classified according to positive or negative CNL and NGL genomic subtypes. The impact of the genomic instability indexes on overall survival (OS) was assessed with…

Male0301 basic medicineGenome instabilityOncologyCancer ResearchCopy number loadSNPa single nucleotide polymorphism arrayNeuroblastoma0302 clinical medicineHigh risk neuroblastomaSegmental chromosomal aberrationsHR high-riskCNA copy number aberrationTumor biologyCNL copy number loaddNGL decreased net genomic loadlcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensPrognosisPrimary tumornCNL negative copy number loadGI genomic instabilityHomogeneous030220 oncology & carcinogenesisMNA MYCN-amplificationFemaleHR-NB high-risk neuroblastomaNB neuroblastomaSNP arrayOriginal articlemedicine.medical_specialtyDNA Copy Number VariationsiNGL increased net genomic loadpCNL positive copy number loadhetMNA heterogeneous MYCN-amplificationlcsh:RC254-282Polymorphism Single NucleotideGenomic InstabilityUHR ultra-high-riskOS overall survivalNet genomic load03 medical and health sciencesSCA segmental chromosomal aberrationInternal medicineNeuroblastomamedicineHumansNGL net genomic loadGenetic Predisposition to DiseaseGenomic imbalanceGenetic Association StudiesEFS event-free survivalProportional Hazards ModelsChromosome AberrationsPloidieshomMNA homogeneous MYCN-amplificationProportional hazards modelbusiness.industryGene AmplificationGenetic Variationmedicine.diseasePatient Outcome AssessmentCopy number aberration burden030104 developmental biologybusinessNeoplasia
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Intra-Tumour Genetic Heterogeneity and Prognosis in High-Risk Neuroblastoma

2021

Simple Summary Neuroblastoma (NB) is the most common extra-cranial solid paediatric cancer and is responsible for 15% of childhood cancer deaths. Patients with NB are characterized by presenting a very heterogeneous clinic (inter-tumoural heterogeneity) and also both spatial and temporal intra-tumour heterogeneity (ITH) reflected in their genetic aberrations, which may be the consequence of the coexistence of different microenvironments within the tumour. Applying pangenomic techniques to detect genomic aberrations in different biopsies (solid and liquid) of high risk NB (HR-NB) we have detected spatial ITH in a surprisingly high percentage (almost 40%) of the studied cohort. Moreover, a po…

Solid tumourCancer Research<i>MYCN</i> amplificationGenetic heterogeneityMYCN amplificationNeoplasms. Tumors. Oncology. Including cancer and carcinogensGenomicsctDNABiologySNPaArticleOncologyMycn amplificationGenomic ProfileCancer researchgenomicssegmental chromosomal aberrationHigh risk neuroblastomaLiquid biopsytumour microenvironmentSurvival rateRC254-282Cancers
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