0000000000150041

AUTHOR

Loic Le Marchand

showing 7 related works from this author

No Difference in Penetrance between Truncating and Missense/Aberrant Splicing Pathogenic Variants in MLH1 and MSH2: A Prospective Lynch Syndrome Data…

2021

Background. Lynch syndrome is the most common genetic predisposition for hereditary cancer. Carriers of pathogenic changes in mismatch repair (MMR) genes have an increased risk of developing colorectal (CRC), endometrial, ovarian, urinary tract, prostate, and other cancers, depending on which gene is malfunctioning. In Lynch syndrome, differences in cancer incidence (penetrance) according to the gene involved have led to the stratification of cancer surveillance. By contrast, any differences in penetrance determined by the type of pathogenic variant remain unknown. Objective. To determine cumulative incidences of cancer in carriers of truncating and missense or aberrant splicing pathogenic …

cancer incidence0302 clinical medicineMalalties hereditàriesMissense mutation8Q23.3CàncerCancerGenetics0303 health sciencesmedicine.diagnostic_testFactors de risc en les malaltiesMISMATCH REPAIR GENESRMLH1General MedicinePenetranceLynch syndrome3. Good healthsyöpägeenit030220 oncology & carcinogenesisMedicinesyöpätauditilmaantuvuusGenetic diseasescongenital hereditary and neonatal diseases and abnormalitiesmissense11Q23.1Risk factors in diseasesCANCER-RISKMLH1Articleaberrant splicing03 medical and health sciencesAGEmedicineGenetic predispositionddc:610<i>MSH2</i>Lynchin oireyhtymäpenetrance030304 developmental biologyGenetic testingMLH1; MSH2; penetrance; cancer incidence; truncating; missense; aberrant splicing; Lynch syndromeperinnölliset tauditbusiness.industryMUTATIONSHMSH2Cancernutritional and metabolic diseasesmedicine.diseasedigestive system diseasesMSH2Lynch syndromeMSH23121 General medicine internal medicine and other clinical medicine<i>MLH1</i>businesstruncating
researchProduct

Uptake of hysterectomy and bilateral salpingo-oophorectomy in carriers of pathogenic mismatch repair variants:a Prospective Lynch Syndrome Database r…

2021

Purpose: This study aimed to report the uptake of hysterectomy and/or bilateral salpingo-oophorectomy (BSO) to prevent gynaecological cancers (risk-reducing surgery [RRS]) in carriers of pathogenic MMR (path_MMR) variants.Methods: The Prospective Lynch Syndrome Database (PLSD) was used to investigate RRS by a cross-sectional study in 2292 female path_MMR carriers aged 30-69 years.Results: Overall, 144, 79, and 517 carriers underwent risk-reducing hysterectomy, BSO, or both combined, respectively. Two-thirds of procedures before 50 years of age were combined hysterectomy and BSO, and 81% of all procedures included BSO. Risk-reducing hysterectomy was performed before age 50 years in 28%, 25%,…

0301 basic medicineCancer ResearchOophorectomyDatabases FactualColorectal cancerSURGERYmedicine.medical_treatmentCàncer d'ovaricomputer.software_genreDNA Mismatch Repair0302 clinical medicineEndometrial cancermunasarjasyöpäMedicineProspective StudiesColectomySalpingo-oophorectomy/methodsDatabaseManchester Cancer Research CentreCOLON-CANCERMLH1WOMENMiddle AgedPrognosisLynch syndrome3. Good healthkohdunrungon syöpäOncologyCOLECTOMY030220 oncology & carcinogenesisFemaleBiomarkers Tumor/geneticsAdultHeterozygoteGenital Neoplasms FemaleSalpingo-oophorectomyHysterectomy03 medical and health sciencesGenital Neoplasms Female/prevention & controlOvarian cancerColorectal Neoplasms Hereditary Nonpolyposis/geneticsBiomarkers TumorMortalitatHumansHysterectomy/methodsMortalityLynchin oireyhtymäRisk-reducing surgeryAgedHysterectomybusiness.industryEndometrial cancerResearchInstitutes_Networks_Beacons/mcrcCancerOophorectomyMSH63126 Surgery anesthesiology intensive care radiologymedicine.diseaseColorectal Neoplasms Hereditary NonpolyposisMSH2030104 developmental biologyCross-Sectional StudiesLynch syndromePMS2Càncer d'endometriMutationkohdunpoistobusinessOvarian cancercomputerFollow-Up Studies
researchProduct

Risk-reducing hysterectomy and bilateral salpingo-oophorectomy in female heterozygotes of pathogenic mismatch repair variants: a Prospective Lynch Sy…

2021

Abstract Purpose To determine impact of risk-reducing hysterectomy and bilateral salpingo-oophorectomy (BSO) on gynecological cancer incidence and death in heterozygotes of pathogenic MMR ( path_MMR ) variants. Methods The Prospective Lynch Syndrome Database was used to investigate the effects of gynecological risk-reducing surgery (RRS) at different ages. Results Risk-reducing hysterectomy at 25 years of age prevents endometrial cancer before 50 years in 15%, 18%, 13%, and 0% of path_MLH1 , path_MSH2 , path_MSH6 , and path_PMS2 heterozygotes and death in 2%, 2%, 1%, and 0%, respectively. Risk-reducing BSO at 25 years of age prevents ovarian cancer before 50 years in 6%, 11%, 2%, and 0% and…

0301 basic medicinemedicine.medical_treatmentDNA Mismatch RepairGynecologic surgery0302 clinical medicineMalalties hereditàriesProspective StudiesProspective cohort studyGenetics (clinical)Mismatch Repair Endonuclease PMS2Incidence (epidemiology)Middle Aged16. Peace & justiceLynch syndrome3. Good health030220 oncology & carcinogenesisFemalesyöpätauditMutL Protein Homolog 1Genetic diseasesHeterozygotemedicine.medical_specialtySalpingo-oophorectomyCirurgia ginecològicaHysterectomyArticle03 medical and health sciencesCàncer colorectalCAPP2medicineHumansLynchin oireyhtymäGynecologyperinnölliset tauditHysterectomyHEREDITARY COLORECTAL-CANCERbusiness.industryEndometrial cancerCancermedicine.diseaseColorectal Neoplasms Hereditary NonpolyposisColorectal cancerASPIRIN030104 developmental biologyClinical researchLynch syndrome3121 General medicine internal medicine and other clinical medicinekohdunpoisto3111 BiomedicineOvarian cancerbusiness
researchProduct

Correction:Cancer risks by gene, age, and gender in 6350 carriers of pathogenic mismatch repair variants: findings from the Prospective Lynch Syndrom…

2020

Lynch syndrome (LS) results from pathogenic variants in the mismatch repair (MMR) genes and is the most common hereditary cancer syndrome, affecting an estimated 1 in 300 individuals. Pathogenic variants in each of the MMR genes path_MLH1, path_MSH2, path_MSH6, and path_PMS2 result in different risks for cancers in organs including the colorectum, endometrium, ovaries, stomach, small bowel, bile duct, pancreas, and upper urinary tract. Accurate estimates of these risks are essential for planning appropriate approaches to the prevention or early diagnosis of cancers but the robustness of previous studies has been limited by factors including retrospective design,1,2 lack of validation in ind…

OncologyMaleColorectal cancer*Lynch syndromePenetranceDNA Mismatch Repair0302 clinical medicineDatabases GeneticMalalties hereditàriesProspective StudiesCàncer*PMS2Genetics (clinical)Mismatch Repair Endonuclease PMS2Cancer0303 health sciencesSex CharacteristicsFactors de risc en les malalties1184 Genetics developmental biology physiologyMLH1Middle Aged16. Peace & justiceLynch syndrome3. Good healthDNA-Binding ProteinsMutS Homolog 2 Proteinsyöpägeenit*MSH2030220 oncology & carcinogenesis*MSH6030211 gastroenterology & hepatologyDNA mismatch repairFemalegeneettiset tekijätMutL Protein Homolog 1Genetic diseasesAdultmedicine.medical_specialtycongenital hereditary and neonatal diseases and abnormalitiesRisk factors in diseasessuolistosyövätMUTATION CARRIERSMLH1Risk AssessmentArticlesukupuoliAge and gender03 medical and health sciencesInternal medicinemedicineHumansGenetic Predisposition to DiseaseLynchin oireyhtymäGene030304 developmental biologyAgedbusiness.industryEndometrial cancerCorrectionnutritional and metabolic diseasesCancer*MLH1MSH6medicine.diseaseColorectal Neoplasms Hereditary NonpolyposisSurvival Analysisdigestive system diseasesMSH2MSH6Lynch syndromePMS2MSH2Mutation3111 BiomedicineikäbusinessOvarian cancer
researchProduct

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
researchProduct

Analysis of Heritability and Shared Heritability Based on Genome-Wide Association Studies for Thirteen Cancer Types

2015

BACKGROUND: Studies of related individuals have consistently demonstrated notable familial aggregation of cancer. We aim to estimate the heritability and genetic correlation attributable to the additive effects of common single-nucleotide polymorphisms (SNPs) for cancer at 13 anatomical sites.METHODS: Between 2007 and 2014, the US National Cancer Institute has generated data from genome-wide association studies (GWAS) for 49 492 cancer case patients and 34 131 control patients. We apply novel mixed model methodology (GCTA) to this GWAS data to estimate the heritability of individual cancers, as well as the proportion of heritability attributable to cigarette smoking in smoking-related cance…

MaleCancer ResearchLung NeoplasmsLymphomaGenome-wide association studyPolymorphism (computer science)NeoplasmsMedicineChronicGeneticsOsteosarcomaOncology And CarcinogenesisLeukemiaSmokingFamily aggregationSingle NucleotideMiddle AgedFamilial riskDiffuseKidney NeoplasmsLymphocyticOncologyAdult; Aged; Asian Continental Ancestry Group; Bone Neoplasms; European Continental Ancestry Group; Female; Humans; Kidney Neoplasms; Leukemia Lymphocytic Chronic B-Cell; Lung Neoplasms; Lymphoma Large B-Cell Diffuse; Male; Middle Aged; Neoplasms; Osteosarcoma; Polymorphism Single Nucleotide; Smoking; Testicular Neoplasms; Tissue Array Analysis; Urinary Bladder Neoplasms; Genetic Predisposition to Disease; Genome-Wide Association StudyFemaleLymphoma Large B-Cell DiffuseAdultAsian Continental Ancestry GroupEuropean Continental Ancestry Group/Bone NeoplasmsPolymorphism Single NucleotideGenetic correlationTesticular NeoplasmsLarge B-CellHumansGenetic Predisposition to DiseaseOncology & CarcinogenesisPolymorphismAgedbusiness.industryExtramuralB-CellCancerHeritabilityGenome-wide association studies for thirteen cancer typesmedicine.diseaseLeukemia Lymphocytic Chronic B-CellUrinary Bladder NeoplasmsTissue Array AnalysisbusinessGenome-Wide Association StudyJournal of the National Cancer Institute
researchProduct

Genome-wide association studies identify four ER negative-specific breast cancer risk loci

2013

Estrogen receptor (ER)-negative tumors represent 20-30% of all breast cancers, with a higher proportion occurring in younger women and women of African ancestry. The etiology and clinical behavior of ER-negative tumors are different from those of tumors expressing ER (ER positive), including differences in genetic predisposition. To identify susceptibility loci specific to ER-negative disease, we combined in a metaanalysis 3 genome-wide association studies of 4,193 ER-negative breast cancer cases and 35,194 controls with a series of 40 follow-up studies (6,514 cases and 41,455 controls), genotyped using a custom Illumina array, iCOGS, developed by the Collaborative Oncological Gene-environm…

Oncologygenetic associationbody-mass indexEstrogen receptorGenome-wide association studycancer riskBioinformaticssusceptibilitychromosome 1q0302 clinical medicineRisk Factorssingle nucleotide polymorphismGenotypeestrogenCooperative Behaviorcomparative studyOligonucleotide Array Sequence Analysis0303 health scienceschromosome 16q3. Good healthReceptors Estrogenpriority journal030220 oncology & carcinogenesisFemalecancer invasionsignal transductionbreast cancer; cancer invasion; cancer risk; chromosome 1; chromosome 16q; chromosome 1q; chromosome 2p; comparative study; follow up; gene locus; genetic association; genetic susceptibility; human; nucleotide sequence; priority journal; signal transduction; single nucleotide polymorphismmedicine.medical_specialtyGenotypegene locusBreast NeoplasmsSingle-nucleotide polymorphismBiologyPolymorphism Single NucleotideArticle03 medical and health sciencesBreast cancerbreast cancerMeta-Analysis as TopicSDG 3 - Good Health and Well-beingInternal medicineexpressionGeneticsmedicineGenetic predispositionHumansfollow upGenetic Predisposition to Diseasehumanchromosome 1gene030304 developmental biologyCase-control studyCancernucleotide sequencemedicine.diseasechromosome 2pGenetic LociCase-Control Studiescommon variantGenome-Wide Association Studygenetic susceptibilityNature Genetics
researchProduct