Search results for "cell cycle S phase"

showing 2 items of 2 documents

TP53 mutations and S-phase fraction but not DNA-ploidy are independent prognostic indicators in laryngeal squamous cell carcinoma

2005

To prospectively evaluate the prognostic significance of TP53, H-, K-, and N-Ras mutations, DNA-ploidy and S-phase fraction (SPF) in patients affected by locally advanced laryngeal squamous cell carcinoma (LSCC). Eight-one patients (median follow-up was 71 months) who underwent resective surgery for primary operable locally advanced LSCC were analyzed. Tumor DNA was screened for mutational analysis by PCR/SSCP and sequencing. DNA-ploidy and SPF were performed by flow cytometric analyses. Thirty-six patients (44%) had, at least, a mutation in the TP53 gene. Of them, 22% (8/36) had double mutations and 3% (1/36) had triple mutations. In total, 46 TP53 mutations were observed. The majority (41…

squamous cell carcinomasingle strand conformation polymorphismPrognosipolymerase chain reactionDNA Mutational AnalysisEMTREE drug terms: protein p53 EMTREE medical terms: advanced cancerS PhaseDNA Mutational AnalysiHumansprotein p53 advanced cancer; article; cell cycle S phase; DNA content; exon; flow cytometry; follow up; gene; gene mutation; genetic analysis; histopathology; human; human tissue; larynx carcinoma; multivariate analysis; ploidy; polymerase chain reaction; priority journal; prospective study; single strand conformation polymorphism; squamous cell carcinoma; tp53 gene Carcinoma Squamous Cell; DNA Mutational Analysis; DNA Neoplasm; Genes ras; Humans; Laryngeal Neoplasms; Mutation; Ploidies; Polymorphism Single-Stranded Conformational; Prognosis; S Phase; Survival Rate; Tumor Suppressor Protein p53 [EMTREE drug terms]follow uplarynx carcinomatp53 gene MeSH: Carcinoma Squamous Cellexongene mutationhumanmultivariate analysigeneLaryngeal NeoplasmsPolymorphism Single-Stranded ConformationalLaryngeal NeoplasmPloidiesflow cytometryarticleploidyDNA NeoplasmPrognosisGenes rahuman tissueSurvival RateGenes rascell cycle S phasepriority journalDNA contentgenetic analysiMutationCarcinoma Squamous CellhistopathologyTumor Suppressor Protein p53Ploidieprospective study
researchProduct

Prognostic significance of DNA ploidy, S-phase fraction, and tissue levels of aspartic, cysteine, and serine proteases in operable gastric carcinoma

2000

A consecutive series of 63 untreated patients undergoing surgical resection for stage I-IV gastric adenocarcinomas (GCs) has been prospectively studied. Our purpose was to analyze the predictive relevance of DNA ploidy, S-phase fraction (SPF), and tissue levels of lysosomal proteinases cathepsin D (CD), cathepsin B (CB), cathepsin L (CL), and urokinase-type plasminogen activator (uPA) and that of the intracellular cysteine proteinase inhibitor stefin A on clinical outcome. All of the patients taking part in this study were followed up for a median of 73 months. DNA aneuploidy was present in 71% of the cases (45/63), whereas 9% of these (4/45) showed multiclonality. Both DNA ploidy and SPF w…

AdultMaleTime FactorsAdenocarcinomaS PhasePredictive Value of TestsStomach NeoplasmsBiomarkers TumorAspartic Acid EndopeptidasesHumansNeoplasm Invasivenesshumancell cycle S phase; disease association; female; histopathology; human; lymph node metastasisAgedProbabilityPloidieslymph node metastasisdisease associationSerine EndopeptidasesDNA NeoplasmMiddle AgedPrognosisSurvival AnalysisCysteine Endopeptidasescell cycle S phaseLymphatic MetastasishistopathologyFemaleFollow-Up Studies
researchProduct