0000000001309149

AUTHOR

Steven A. Narod

showing 9 related works from this author

BRCA1 promoter methylation in peripheral blood is associated with the risk of triple‐negative breast cancer

2019

Methylation of the promoter of the BRCA1 gene in DNA derived from peripheral blood cells is a possible risk factor for breast cancer. It is not clear if this association is restricted to certain types of breast cancer or is a general phenomenon. We evaluated BRCA1 methylation status in peripheral blood cells from 942 breast cancer patients and from 500 controls. We also assessed methylation status in 262 paraffin‐embedded breast cancer tissues. Methylation status was assessed using methylation‐sensitive high‐resolution melting and was categorized as positive or negative. BRCA1 methylation in peripheral blood cells was strongly associated with the risk of triple‐negative breast cancer (TNBC)…

AdultOncologyCancer Researchmedicine.medical_specialtyConcordanceTriple Negative Breast Neoplasms03 medical and health scienceschemistry.chemical_compound0302 clinical medicineBreast cancerInternal medicineBiomarkers TumormedicineHumansGenetic Predisposition to DiseaseBreastRisk factorPromoter Regions Geneticskin and connective tissue diseasesTriple-negative breast cancerAgedAged 80 and overBRCA1 Proteinbusiness.industryMethylationOdds ratioDNA MethylationMiddle Agedmedicine.diseaseOncologychemistryCase-Control Studies030220 oncology & carcinogenesisBiomarker (medicine)FemalebusinessDNAFollow-Up StudiesInternational Journal of Cancer
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Recurrent Mutations in BRCA1, BRCA2, RAD51C, PALB2 and CHEK2 in Polish Patients with Ovarian Cancer

2021

The aim of the study was to analyze the frequency and magnitude of association of 21 recurrent founder germline mutations in BRCA1, BRCA2, PALB2, RAD51C, and CHEK2 genes with ovarian cancer risk among unselected patients in Poland. We genotyped 21 recurrent germline mutations in BRCA1 (9 mutations), BRCA2 (4 mutations), RAD51C (3 mutations), PALB2 (2 mutations), and CHEK2 (3 mutations) among 2270 Polish ovarian cancer patients and 1743 healthy controls, and assessed the odds ratios (OR) for developing ovarian cancer for each gene. Mutations were detected in 369 out of 2095 (17.6%) unselected ovarian cancer cases and 117 out of 1743 (6.7%) unaffected controls. The ovarian cancer risk was ass…

0301 basic medicineOncologyCancer Researchmedicine.medical_specialtyendocrine system diseasesovarian cancer; recurrent mutations; BRCA1; BRCA2; RAD51C; PALB2; CHEK2; cancer riskPALB2<i>CHEK2</i>cancer riskBrca1 brca2lcsh:RC254-282Article03 medical and health sciences0302 clinical medicineGermline mutationInternal medicinemedicineskin and connective tissue diseasesCHEK2GeneCHEK2RAD51Cbusiness.industryOdds ratiomedicine.diseaseBRCA1lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensBRCA2female genital diseases and pregnancy complications<i>BRCA1</i>030104 developmental biologyovarian cancerOncology030220 oncology & carcinogenesisPALB2recurrent mutationsRAD51C<i>PALB2</i>Ovarian cancerbusiness<i>RAD51C</i><i>BRCA2</i>Cancers
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Genetic predisposition to male breast cancer in Poland

2021

Abstract Background Breast cancer in men accounts for fewer than 1 % of all breast cancer cases diagnosed in men and women. Genes which predispose to male breast cancer include BRCA1 and BRCA2. The role of other genes is less clear. In Poland, 20 founder mutations in BRCA1, BRCA2, CHEK2, PALB2, NBN, RECQL are responsible for the majority of hereditary breast cancer cases in women, but the utility this genes panel has not been tested in men. Methods We estimated the prevalence of 20 alleles in six genes (BRCA1, BRCA2, CHEK2, PALB2, NBN, RECQL) in 165 Polish male breast cancer patients. We compared the frequency of selected variants in male breast cancer cases and controls. Results One of the…

OncologyAdultMaleCancer Researchmedicine.medical_specialtyendocrine system diseasesPALB2medicine.disease_causeBreast Neoplasms MaleBreast cancerSurgical oncologyInternal medicineNBNGeneticsmedicineGenetic predispositionBiomarkers TumorHumansGenetic Predisposition to DiseaseAlleleskin and connective tissue diseasesCHEK2RC254-282CHEK2AgedRetrospective StudiesAged 80 and overMutationbusiness.industryCarcinoma Ductal BreastNeoplasms. Tumors. Oncology. Including cancer and carcinogensMiddle Agedmedicine.diseasePrognosisBRCA1BRCA2Male breast cancerRECQLCarcinoma LobularOncologyMale breast cancerCase-Control StudiesPALB2MutationPolandbusinessFollow-Up StudiesResearch ArticleBMC Cancer
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Multiple independent variants at the TERT locus are associated with telomere length and risks of breast and ovarian cancer

2013

Journal article TERT-locus SNPs and leukocyte telomere measures are reportedly associated with risks of multiple cancers. Using the Illumina custom genotyping array iCOGs, we analyzed ~480 SNPs at the TERT locus in breast (n = 103,991), ovarian (n = 39,774) and BRCA1 mutation carrier (n = 11,705) cancer cases and controls. Leukocyte telomere measurements were also available for 53,724 participants. Most associations cluster into three independent peaks. The minor allele at the peak 1 SNP rs2736108 associates with longer telomeres (P = 5.8 × 10!-7), lower risks for estrogen receptor (ER)-negative (P = 1.0 × 10!-8) and BRCA1 mutation carrier (P = 1.1 × 10!-5) breast cancers and altered promot…

TelomeraseMessengerCàncer d'ovariEstrogen receptorAetiology screening and detection [ONCOL 5]0302 clinical medicineBreast cancerRisk FactorsAlternative Splicing; Biomarkers Tumor; Breast Neoplasms; Case-Control Studies; Chromatin; DNA Methylation; Female; Gene Expression Profiling; Genetic Loci; Genetic Predisposition to Disease; Genome-Wide Association Study; Genotype; Humans; Luciferases; Oligonucleotide Array Sequence Analysis; Ovarian Neoplasms; Polymorphism Single Nucleotide; RNA Messenger; Real-Time Polymerase Chain Reaction; Reverse Transcriptase Polymerase Chain Reaction; Risk Factors; Telomerase; Telomere; GeneticsGenotypeBUCCAL CELLSLuciferasesTelomeraseOligonucleotide Array Sequence AnalysisOvarian Neoplasms0303 health sciencesTumorTelòmerReverse Transcriptase Polymerase Chain ReactionGENETIC-VARIATIONCOMMON VARIANTSSingle Nucleotidetert-clptm1l locus; genome-wide association; genetic-variation; susceptibility loci; buccal cells; fibroblasts; common variants; carcinoma; reverse-transcriptase htert; metaanalysisTelomereAetiology screening and detection Immune Regulation [ONCOL 5]Chromatin3. Good healthTumor Markers Biological030220 oncology & carcinogenesisFemaleFIBROBLASTSGenotypeSUSCEPTIBILITY LOCICARCINOMASingle-nucleotide polymorphismBreast NeoplasmsBiologyReal-Time Polymerase Chain ReactionPolymorphism Single NucleotideArticleCàncer de mama03 medical and health sciencesBreast cancerSDG 3 - Good Health and Well-beingTranslational research [ONCOL 3]Ovarian cancermedicineGeneticsBiomarkers TumorHumansGenetic Predisposition to DiseaseRNA MessengerPolymorphismAlleleGENOME-WIDE ASSOCIATIONMETAANALYSIS030304 developmental biologyMolecular epidemiology Aetiology screening and detection [NCEBP 1]Breast cancer susceptibilityHereditary cancer and cancer-related syndromes [ONCOL 1]Translational research Genomic disorders and inherited multi-system disorders [ONCOL 3]Gene Expression ProfilingDNA Methylationmedicine.diseaseMolecular biologyTERT-CLPTM1L LOCUSTelomereMinor allele frequencyAlternative SplicingGenetic LociCase-Control StudiesRNABiomarkersREVERSE-TRANSCRIPTASE HTERTGenome-Wide Association StudyNature genetics
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Intron variants of the p53 gene are associated with increased risk for ovarian cancer but not in carriers of BRCA1 or BRCA2 germline mutations

1999

Two biallelic polymorphisms in introns 3 and 6 of the p53 gene were analysed for a possible risk-modifying effect for ovarian cancer. Germline DNA was genotyped from 310 German Caucasian ovarian cancer patients and 364 healthy controls. We also typed 124 affected and 276 unaffected female carriers with known deleterious BRCA1 or BRCA2 germline mutation from high-risk breast-ovarian cancer families. Genotyping was based on PCR and high-resolution gel electrophoresis. German ovarian cancer patients who carried the rare allele of the MspI restriction fragment length polymorphism (RELP) in intron 6 were found to have an overall 1.93-fold increased risk (95% confidence internal (CI) 1.27–2.91) w…

p53AdultCancer Researchendocrine system diseasesAdolescentGenotypeGenes BRCA1BiologypolymorphismGermline mutationRisk FactorsGenotypemedicineTumor Cells CulturedHumansAlleleAllele frequencyGerm-Line MutationAgedGeneticsAged 80 and overBRCA2 ProteinOvarian NeoplasmsGenetic Carrier ScreeningCancerGenetic VariationRegular ArticleMiddle Agedmedicine.diseaseBRCA2 ProteinBRCA1Genes p53BRCA2IntronsNeoplasm Proteinsovarian cancerOncologyCase-Control StudiesCancer researchFemaleRestriction fragment length polymorphismOvarian cancergenetic susceptibilityTranscription FactorsBritish Journal of Cancer
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Do BARD1 Mutations Confer an Elevated Risk of Prostate Cancer?

2021

Simple Summary Current cancer testing gene panels tend to be comprehensive. One of the genes commonly included in the testing panels is BARD1. To establish whether BARD1 mutations predispose to prostate cancer, we sequenced BARD1 in 390 hereditary prostate cancer cases, genotyped 5715 men with unselected prostate cancer and 10,252 controls for three recurrent rare BARD1 variants in Poland. We did not see an elevated prostate risk cancer given p.Q564X truncating mutation, p.R658C missense mutation and p.R659= synonymous variant. Neither variant influenced prostate cancer characteristics or survival. Our study is the first to evaluate the association between BARD1 mutations and prostate cance…

OncologyCancer Researchmedicine.medical_specialtySusceptibility genemedicine.disease_causesurvivalArticleProstate cancerBreast cancerBARD1; mutation; prostate cancer; risk; survivalInternal medicineBARD1medicineBARD1GeneRC254-282riskProstate cancer riskMutationbusiness.industryCancerNeoplasms. Tumors. Oncology. Including cancer and carcinogensmedicine.diseaseprostate cancerOncology<i>BARD1</i>mutationbusinessCancers
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Inherited variants in XRCC2 and the risk of breast cancer

2019

Background XRCC2 participates in homologous recombination and in DNA repair. XRCC2 has been reported to be a breast cancer susceptibility gene and is now included in several breast cancer susceptibility gene panels. Methods We sequenced XRCC2 in 617 Polish women with familial breast cancer and found a founder mutation. We then genotyped 12,617 women with breast cancer and 4599 controls for the XRCC2 founder mutation. Results We identified a recurrent truncating mutation of XRCC2 (c.96delT, p.Phe32fs) in 3 of 617 patients with familial breast cancer who were sequenced. The c.96delT mutation was then detected in 29 of 12,617 unselected breast cancer cases (0.23%) compared to 11 of 4599 cancer…

0301 basic medicineOncologyAdultCancer Researchmedicine.medical_specialtyGenotypeXRCC2DNA repairEpidemiologyBreast NeoplasmsXRCC203 medical and health sciences0302 clinical medicineBreast cancerBreast cancerMutation RateInternal medicinemedicineHumansGenetic TestingAlleleMutation frequencyskin and connective tissue diseasesGeneAllelesGenetic Association StudiesAgedbusiness.industryMiddle Agedmedicine.diseaseDNA-Binding Proteins030104 developmental biologyHereditaryOncology030220 oncology & carcinogenesisMutation (genetic algorithm)MutationFemalePolandbusinessHomologous recombinationBreast Cancer Research and Treatment
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The impact of oophorectomy on survival from breast cancer in patients with CHEK2 mutations

2022

BACKGROUND: To estimate the impact of oophorectomy and other treatments on the survival of breast cancer patients with a CHEK2 mutation. METHODS: Women with Stage I–III breast cancer who were treated at 17 hospitals in Poland were tested for four founder mutations in the CHEK2 gene. 974 women (10%) were positive for a CHEK2 mutation. Control patients without a CHEK2 mutation were selected from a database of patients treated over the same time period. Information on treatments received and distant recurrences were retrieved from medical records. Treatments included chemotherapy, hormonal therapy (tamoxifen) and radiation therapy. Oophorectomies were performed for the treatment of breast canc…

Cancer ResearchCheckpoint Kinase 2OncologyRisk FactorsOvariectomyMutationHumansBreast NeoplasmsFemaleGenetic Predisposition to DiseaseArticleProportional Hazards Models
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Additional file 1 of Genetic predisposition to male breast cancer in Poland

2021

Additional file 1.

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