0000000000419729

AUTHOR

Ramona Lupi

showing 3 related works from this author

TP53 in gastric cancer: mutations in the l3 loop and LSH motif DNA-binding domains of TP53 predict poor outcome.

2004

The aim of this study was to clarify whether specific p53 mutations may have biological relevance in terms of disease relapse or death in gastric carcinomas (GC). Resected specimens from a consecutive series of 62 patients with GC undergoing potentially curative surgery were prospectively studied. The mutational status of exons 5-8 of the p53 gene was investigated in 62 cases using the PCR-SSCP and sequencing. Presence of microsatellite instability (MSI) was evaluated in 56 cases by analyzing loci highly sensitive of MSI. Twenty mutations of p53 were detected in 17 of the 62 cases analyzed (27%). Ten mutations (50%) occurred in highly conserved domains. According to the p53 specific functio…

MalePhysiologyClinical BiochemistryBiologyBioinformaticsExonchemistry.chemical_compoundAge DistributionStomach NeoplasmsmedicineHumansCancer mutationsTP53Prospective StudiesProspective cohort studyGeneSurvival analysisPolymorphism Single-Stranded ConformationalAgedNeoplasm StagingCarcinomaMicrosatellite instabilityCell BiologyDNA-binding domainDNA NeoplasmExonsMiddle Agedmedicine.diseaseGenes p53PrognosisSurvival AnalysisProtein Structure TertiarychemistryItalyMutationCancer researchFemaleDNAFollow-Up StudiesMicrosatellite RepeatsJournal of cellular physiology
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Patterns of genomic instability in gastric cancer: clinical implications and perspectives

2007

In gastric cancer (GC) the loss of genomic stability represents a key molecular step that occurs early in the carcinogenesis process and creates a permissive environment for the accumulation of genetic and epigenetic alterations in tumor suppressor genes and oncogenes. It is widely accepted that GC can follow at least two major genomic instability pathways, microsatellite instability (MSI) and chromosome instability (CIN). MSI is responsible for a well-defined subset of GCs. CIN represents a more common pathway comprising heterogeneous subsets of GC. In addition to MSI and CIN, the CpG islands methylator phenotype (CIMP) plays an important role in gastric carcinogenesis. CIMP may lead to th…

Genome instabilitybusiness.industrygastric cancer genomic instability microsatellite instability (MSI) chromosomal instability (CIN) CpG island methylator phenotype (CIMP) clinical implicationsMicrosatellite instabilityHematologyDNA Methylationmedicine.diseasemedicine.disease_causedigestive system diseasesDNA demethylationOncologyCpG siteStomach NeoplasmsChromosomal InstabilityChromosome instabilityDNA methylationmedicineCancer researchHumansCpG IslandsMicrosatellite InstabilityEpigeneticsbusinessCarcinogenesisneoplasms
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BRCA1/BRCA2 rearrangements and CHEK2 common mutations are infrequent in Italian male breast cancer cases

2008

Male breast cancer (MBC) is a rare and poorly known disease. Germ-line mutations of BRCA2 and, to lesser extent, BRCA1 genes are the highest risk factors associated with MBC. Interestingly, BRCA2 germ-line rearrangements have been described in high-risk breast/ovarian cancer families which included at least one MBC case. Germ-line mutations of CHEK2 gene have been also implicated in inherited MBC predisposition. The CHEK2 1100delC mutation has been shown to increase the risk of breast cancer in men lacking BRCA1/BRCA2 mutations. Intriguingly, two other CHEK2 mutations (IVS2+1G>A and I157T) and a CHEK2 large genomic deletion (del9-10) have been associated with an elevated risk for prostate c…

AdultMaleCancer Researchendocrine system diseasesGenes BRCA2Genes BRCA1male breast cancerProtein Serine-Threonine KinasesBiologychek2medicine.disease_causeBreast Neoplasms Malebrca1Breast cancerbrca2medicineHumansBRCA1/BRCA2germ-line mutationsMultiplex ligation-dependent probe amplificationmlpaskin and connective tissue diseasesneoplasmsCHEK2Germ-Line MutationGene RearrangementMutationCancerGene rearrangementmedicine.diseaseCheckpoint Kinase 2Oncologylarge genomic rearrangementsMale breast cancerCancer researchbrca1; brca2; chek2; germ-line mutations; large genomic rearrangements; male breast cancer; mlpaBreast diseaseBreast Cancer Research and Treatment
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