2024
High ambient temperature in pregnancy and risk of childhood acute lymphoblastic leukaemia: an observational study
Rogne T, Wang R, Wang P, Deziel N, Metayer C, Wiemels J, Chen K, Warren J, Ma X. High ambient temperature in pregnancy and risk of childhood acute lymphoblastic leukaemia: an observational study. The Lancet Planetary Health 2024, 8: e506-e514. PMID: 38969477, PMCID: PMC11260908, DOI: 10.1016/s2542-5196(24)00121-9.Peer-Reviewed Original ResearchConceptsRisk of childhood acute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaAcute lymphoblastic leukemiaLymphoblastic leukemiaLatino childrenNon-Latino white childrenAssociated with risk of adverse pregnancy outcomesCalifornia Cancer RegistryRisk of acute lymphoblastic leukemiaCalifornia birth recordsRisk of adverse pregnancy outcomesPre-pregnancy periodAssociated with riskBayesian meta-regressionNational Institutes of HealthCancer RegistryCases of childhood acute lymphoblastic leukemiaNational Center for Advancing Translational SciencesAdverse pregnancy outcomesAcute lymphoblastic leukemia casesInstitutes of HealthInvestigation of mechanistic pathwaysBirth recordsGestational weeks 8Pre-pregnancy
2023
Gene-Environment Analyses Reveal Novel Genetic Candidates with Prenatal Tobacco Exposure in Relation to Risk for Childhood Acute Lymphoblastic Leukemia.
Zhong C, Li S, Arroyo K, Morimoto L, de Smith A, Metayer C, Ma X, Kogan S, Gauderman W, Wiemels J. Gene-Environment Analyses Reveal Novel Genetic Candidates with Prenatal Tobacco Exposure in Relation to Risk for Childhood Acute Lymphoblastic Leukemia. Cancer Epidemiology Biomarkers & Prevention 2023, 32: 1707-1715. PMID: 37773025, DOI: 10.1158/1055-9965.epi-23-0258.Peer-Reviewed Original ResearchConceptsMaternal tobacco exposureAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaTobacco exposureLymphoblastic leukemiaLarge population-based studyPopulation-based studyEffects of tobaccoPrenatal tobacco exposureAryl hydrocarbon receptor repressor geneMode of deliverySelf-reported smokingIndividual-level risk factorsGenetic variantsPolygenetic risk scoresYear of birthAHRR hypomethylationSubsequent childhoodMaternal exposureGestational ageRisk factorsTobacco smokeRisk scoreBiological markersBlood spotsMendelian randomization study of birthweight, gestational age, and risk of childhood acute lymphoblastic leukemia
Rogne T, DeWan A, Metayer C, Wiemels J, Ma X. Mendelian randomization study of birthweight, gestational age, and risk of childhood acute lymphoblastic leukemia. American Journal Of Obstetrics & Gynecology MFM 2023, 5: 101058. PMID: 37330008, DOI: 10.1016/j.ajogmf.2023.101058.Peer-Reviewed Original ResearchConceptsChildhood acute lymphoblastic leukemiaAcute lymphoblastic leukemiaMendelian randomization studyGestational ageLymphoblastic leukemiaRandomization studyBirthweightLeukemiaOne-Carbon (Folate) Metabolism Pathway at Birth and Risk of Childhood Acute Lymphoblastic Leukemia: A Biomarker Study in Newborns
Metayer C, Imani P, Dudoit S, Morimoto L, Ma X, Wiemels J, Petrick L. One-Carbon (Folate) Metabolism Pathway at Birth and Risk of Childhood Acute Lymphoblastic Leukemia: A Biomarker Study in Newborns. Cancers 2023, 15: 1011. PMID: 36831356, PMCID: PMC9953980, DOI: 10.3390/cancers15041011.Peer-Reviewed Original ResearchAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaOne-carbon metabolism nutrientsRace/ethnicityLymphoblastic leukemiaFolic acid intakeTime of conceptionOne-carbon metabolism pathwaySubsequent leukemiaFirst trimesterAcid intakeCommon cancerDNA methylation programmingChildhood leukemiaLeukemiaNegative findingsBlood spotsBiomarker studiesPathway metabolitesFolic acidAges 0Key vitaminsPregnancyLast weekFolate pathwayOutdoor artificial light at night, air pollution, and risk of childhood acute lymphoblastic leukemia in the California Linkage Study of Early-Onset Cancers
Zhong C, Wang R, Morimoto L, Longcore T, Franklin M, Rogne T, Metayer C, Wiemels J, Ma X. Outdoor artificial light at night, air pollution, and risk of childhood acute lymphoblastic leukemia in the California Linkage Study of Early-Onset Cancers. Scientific Reports 2023, 13: 583. PMID: 36631468, PMCID: PMC9834257, DOI: 10.1038/s41598-022-23682-z.Peer-Reviewed Original ResearchConceptsAcute lymphoblastic leukemiaRisk of childhoodEarly-onset cancersLymphoblastic leukemiaBirth recordsChildhood acute lymphoblastic leukemiaNon-Hispanic white childrenHispanic childrenCalifornia Cancer RegistryEtiology of childhoodOutdoor artificial lightOutdoor ALANHighest tertileCancer RegistryLinkage studiesRisk factorsBorderline associationElevated riskCancer diagnosisCancerEnvironmental exposuresWhite childrenCommon typeAir pollutionRisk
2022
Unconventional Oil and Gas Development Exposure and Risk of Childhood Acute Lymphoblastic Leukemia: A Case–Control Study in Pennsylvania, 2009–2017
Clark CJ, Johnson NP, Soriano M, Warren JL, Sorrentino KM, Kadan-Lottick NS, Saiers JE, Ma X, Deziel NC. Unconventional Oil and Gas Development Exposure and Risk of Childhood Acute Lymphoblastic Leukemia: A Case–Control Study in Pennsylvania, 2009–2017. Environmental Health Perspectives 2022, 130: 087001. PMID: 35975995, PMCID: PMC9383266, DOI: 10.1289/ehp11092.Peer-Reviewed Original ResearchConceptsAcute lymphoblastic leukemiaCase-control studyOdds ratioChildhood leukemiaLymphoblastic leukemiaPerinatal windowRegistry-based case-control studyChildhood acute lymphoblastic leukemiaConfidence intervalsResidential proximityChildren ages 2Risk factorsMaternal raceChild healthExposure windowsSocio-economic statusPotential associationLeukemiaLogistic regressionAge 2Birth yearCommon formBirth residenceDevelopment exposureOdds
2021
Cytokine Levels at Birth in Children Who Developed Acute Lymphoblastic Leukemia
Whitehead TP, Wiemels JL, Zhou M, Kang AY, McCoy LS, Wang R, Fitch B, Petrick LM, Yano Y, Imani P, Rappaport SM, Dahl GV, Kogan SC, Ma X, Metayer C. Cytokine Levels at Birth in Children Who Developed Acute Lymphoblastic Leukemia. Cancer Epidemiology Biomarkers & Prevention 2021, 30: 1526-1535. PMID: 34078642, PMCID: PMC8338848, DOI: 10.1158/1055-9965.epi-20-1704.Peer-Reviewed Original ResearchConceptsAcute lymphoblastic leukemiaCytokine levelsLymphoblastic leukemiaChildhood acute lymphoblastic leukemiaAberrant immune reactionsPrenatal immune developmentRisk of childhoodInterquartile range incrementAltered cytokine levelsCalifornia Childhood Leukemia StudyChildhood Leukemia StudyBirth characteristicsNeonatal levelsPrenatal exposureImmunomodulatory cytokinesImmune developmentHigh hyperdiploidyImmune reactionsCytokinesGM-CSFBlood spotsLogistic regressionLeukemia StudyEndogenous metabolitesConfidence intervals
2020
Spatial-Temporal Cluster Analysis of Childhood Cancer in California.
Francis SS, Enders C, Hyde R, Gao X, Wang R, Ma X, Wiemels JL, Selvin S, Metayer C. Spatial-Temporal Cluster Analysis of Childhood Cancer in California. Epidemiology 2020, 31: 214-223. PMID: 31596791, PMCID: PMC9005107, DOI: 10.1097/ede.0000000000001121.Peer-Reviewed Original ResearchConceptsMalignant gonadal germ cell tumorsGonadal germ cell tumorsGerm cell tumorsAcute lymphoblastic leukemiaChildhood cancerCell tumorsChildhood acute lymphoblastic leukemiaYears of ageRace/ethnicity-matched controlsEthnicity-matched controlsSpace-time cluster analysisEpidemiologic featuresHodgkin's lymphomaLymphoblastic leukemiaBirth addressHealth professionalsCancerSpace-time clustersTumorsAgeSaTScanTemporal cluster analysisFurther researchEvidenceLymphoma
2019
Increased neonatal level of arginase 2 in cases of childhood acute lymphoblastic leukemia implicates immunosuppression in the etiology
Nielsen AB, Zhou M, de Smith AJ, Wang R, McCoy L, Hansen H, Morimoto L, Grønbæk K, Johansen C, Kogan SC, Metayer C, Bracci PM, Ma X, Wiemels JL. Increased neonatal level of arginase 2 in cases of childhood acute lymphoblastic leukemia implicates immunosuppression in the etiology. Haematologica 2019, 104: e514-e516. PMID: 30923090, PMCID: PMC6821599, DOI: 10.3324/haematol.2019.216465.Peer-Reviewed Original ResearchConceptsChildhood acute lymphoblastic leukemiaAcute lymphoblastic leukemiaLymphoblastic leukemiaNeonatal levelsArginase-2ImmunosuppressionEtiologyLeukemia
2018
Advanced parental age as risk factor for childhood acute lymphoblastic leukemia: results from studies of the Childhood Leukemia International Consortium
Petridou ET, Georgakis MK, Erdmann F, Ma X, Heck JE, Auvinen A, Mueller BA, Spector LG, Roman E, Metayer C, Magnani C, Pombo-de-Oliveira MS, Ezzat S, Scheurer ME, Mora AM, Dockerty JD, Hansen J, Kang AY, Wang R, Doody DR, Kane E, Rashed WM, Dessypris N, Schüz J, Infante-Rivard C, Skalkidou A. Advanced parental age as risk factor for childhood acute lymphoblastic leukemia: results from studies of the Childhood Leukemia International Consortium. European Journal Of Epidemiology 2018, 33: 965-976. PMID: 29761423, PMCID: PMC6384148, DOI: 10.1007/s10654-018-0402-z.Peer-Reviewed Original ResearchConceptsAcute lymphoblastic leukemiaChildhood Leukemia International ConsortiumChildhood acute lymphoblastic leukemiaCase-control studyAdvanced parental ageLymphoblastic leukemiaOdds ratioParental agePaternal ageAdvanced maternal ageSimilar positive associationPositive associationAdverse health effectsMaternal ageRisk factorsEnrollment periodStudy designAge incrementsHealth effectsFive yearsAgeUnderlying mechanismInternational ConsortiumLeukemiaRiskGWAS in childhood acute lymphoblastic leukemia reveals novel genetic associations at chromosomes 17q12 and 8q24.21
Wiemels JL, Walsh KM, de Smith AJ, Metayer C, Gonseth S, Hansen HM, Francis SS, Ojha J, Smirnov I, Barcellos L, Xiao X, Morimoto L, McKean-Cowdin R, Wang R, Yu H, Hoh J, DeWan AT, Ma X. GWAS in childhood acute lymphoblastic leukemia reveals novel genetic associations at chromosomes 17q12 and 8q24.21. Nature Communications 2018, 9: 286. PMID: 29348612, PMCID: PMC5773513, DOI: 10.1038/s41467-017-02596-9.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentCaliforniaChild, PreschoolChromosomes, Human, Pair 17Chromosomes, Human, Pair 8FemaleGene FrequencyGenetic Predisposition to DiseaseGenome-Wide Association StudyHispanic or LatinoHumansInfantInfant, NewbornMalePolymorphism, Single NucleotidePrecursor Cell Lymphoblastic Leukemia-LymphomaRisk FactorsConceptsNew risk lociRisk lociGenome-wide association studiesGrowth regulation pathwaysGenetic associationAcute lymphoblastic leukemiaNovel genetic associationsChildhood acute lymphoblastic leukemiaGenetic Epidemiology ResearchTranscription factorsStrong genetic associationGene expressionAssociation studiesLymphocyte developmentMYC oncogeneChromosome 17q12Oncology GroupLymphoblastic leukemiaLociChildren's Oncology GroupCalifornia Childhood Leukemia StudyChildhood Leukemia StudyStructural contactsYear of birthNon-Latino whites
2016
Cesarean Section and Risk of Childhood Acute Lymphoblastic Leukemia in a Population-Based, Record-Linkage Study in California
Wang R, Wiemels JL, Metayer C, Morimoto L, Francis SS, Kadan-Lottick N, DeWan AT, Zhang Y, Ma X. Cesarean Section and Risk of Childhood Acute Lymphoblastic Leukemia in a Population-Based, Record-Linkage Study in California. American Journal Of Epidemiology 2016, 185: 96-105. PMID: 27986703, PMCID: PMC5253971, DOI: 10.1093/aje/kww153.Peer-Reviewed Original ResearchConceptsElective C-sectionAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaC-sectionCesarean sectionLymphoblastic leukemiaHigh riskPopulation-based case-control studyPeak ageEmergency C-sectionRecord linkage studyCancer registry dataCase-control studyPotential risk factorsEtiology of childhoodRelationship of modeVaginal deliveryRisk factorsRole of deliveryRegistry dataElevated riskBirth recordsInaccurate recallChildhoodRiskIn utero cytomegalovirus infection and development of childhood acute lymphoblastic leukemia
Francis SS, Wallace AD, Wendt GA, Li L, Liu F, Riley LW, Kogan S, Walsh KM, de Smith AJ, Dahl GV, Ma X, Delwart E, Metayer C, Wiemels JL. In utero cytomegalovirus infection and development of childhood acute lymphoblastic leukemia. Blood 2016, 129: 1680-1684. PMID: 27979823, PMCID: PMC5364339, DOI: 10.1182/blood-2016-07-723148.Peer-Reviewed Original ResearchConceptsAcute lymphoblastic leukemiaCMV infectionCytomegalovirus infectionLymphoblastic leukemiaChildhood acute lymphoblastic leukemiaUtero cytomegalovirus infectionCongenital CMV infectionCommon childhood cancerActive viral transcriptionBone marrow specimensNon-Hispanic whitesTiming of infectionNewborn blood samplesEtiologic roleRisk factorsChildhood cancerHealthy controlsHigh prevalenceMarrow specimensLeukemia blastsBlood samplesPrenatal originEtiologic agentInfectionHispanic children
2015
A Heritable Missense Polymorphism in CDKN2A Confers Strong Risk of Childhood Acute Lymphoblastic Leukemia and Is Preferentially Selected during Clonal Evolution
Walsh KM, de Smith AJ, Hansen HM, Smirnov IV, Gonseth S, Endicott AA, Xiao J, Rice T, Fu CH, McCoy LS, Lachance DH, Eckel-Passow JE, Wiencke JK, Jenkins RB, Wrensch MR, Ma X, Metayer C, Wiemels JL. A Heritable Missense Polymorphism in CDKN2A Confers Strong Risk of Childhood Acute Lymphoblastic Leukemia and Is Preferentially Selected during Clonal Evolution. Cancer Research 2015, 75: 4884-4894. PMID: 26527286, PMCID: PMC4651745, DOI: 10.1158/0008-5472.can-15-1105.Peer-Reviewed Original ResearchConceptsAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaLymphoblastic leukemiaCancer riskRisk allelesGeneral cancer riskPancreatic cancer riskGenome-wide association studiesCase-control populationCDKN2A variantsProtective allelesTumor growthClonal expansionChromosome 9p21.3Hispanic childrenMissense polymorphismStrong riskMissense variantsClonal evolutionRiskLeukemiaTumorsAllelic imbalanceEuropean ancestryPolymorphism
2013
Tobacco Smoke Exposure and the Risk of Childhood Acute Lymphoblastic and Myeloid Leukemias by Cytogenetic Subtype
Metayer C, Zhang L, Wiemels JL, Bartley K, Schiffman J, Ma X, Aldrich MC, Chang JS, Selvin S, Fu CH, Ducore J, Smith MT, Buffler PA. Tobacco Smoke Exposure and the Risk of Childhood Acute Lymphoblastic and Myeloid Leukemias by Cytogenetic Subtype. Cancer Epidemiology Biomarkers & Prevention 2013, 22: 1600-1611. PMID: 23853208, PMCID: PMC3769478, DOI: 10.1158/1055-9965.epi-13-0350.Peer-Reviewed Original ResearchConceptsChildren's passive smokingPassive smokingAcute lymphoblastic leukemiaTobacco smokeMyeloid leukemiaCytogenetic subtypesChildhood acute lymphoblastic leukemiaCHILDHOOD ACUTE LYMPHOBLASTICPaternal prenatal smokingPostnatal passive smokingTobacco smoke exposureRisk of childhoodMultivariable regression analysisTiming of exposureB cell precursorsHyperdiploid B cellsActive smokingPrenatal smokingTobacco smokingSmoke exposureLymphoblastic leukemiaAcute lymphoblasticAML casesElevated riskSmoking
2012
HLA-DP genetic variation, proxies for early life immune modulation and childhood acute lymphoblastic leukemia risk
Urayama KY, Chokkalingam AP, Metayer C, Ma X, Selvin S, Barcellos LF, Wiemels JL, Wiencke JK, Taylor M, Brennan P, Dahl GV, Moonsamy P, Erlich HA, Trachtenberg E, Buffler PA. HLA-DP genetic variation, proxies for early life immune modulation and childhood acute lymphoblastic leukemia risk. Blood 2012, 120: 3039-3047. PMID: 22923493, PMCID: PMC3471514, DOI: 10.1182/blood-2012-01-404723.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultCase-Control StudiesChildChild, PreschoolFemaleGenetic Predisposition to DiseaseGenetic VariationGenotypeHispanic or LatinoHLA-DP alpha-ChainsHLA-DP beta-ChainsHumansImmunologic FactorsInfantMalePrecursor Cell Lymphoblastic Leukemia-LymphomaPrognosisRisk FactorsWhite PeopleYoung AdultConceptsAcute lymphoblastic leukemiaImmune modulationChildhood acute lymphoblastic leukemiaChildhood acute lymphoblastic leukemia riskAcute lymphoblastic leukemia riskEarly immune modulationHuman leukocyte antigen (HLA) genesLowest exposure categoryLogistic regression analysisEtiology of childhoodNon-Hispanic whitesHLA-DPB1 geneRace/ethnicityInfectious exposureLymphoblastic leukemiaImmune mechanismsExposure categoriesHispanic ethnicityLeukemia riskGenetic susceptibility lociHLA-DPA1Immune systemHispanic childrenRegression analysisEvidence of interactionFetal growth and body size genes and risk of childhood acute lymphoblastic leukemia
Chokkalingam AP, Metayer C, Scelo G, Chang JS, Schiffman J, Urayama KY, Ma X, Hansen HM, Feusner JH, Barcellos LF, Wiencke JK, Wiemels JL, Buffler PA. Fetal growth and body size genes and risk of childhood acute lymphoblastic leukemia. Cancer Causes & Control 2012, 23: 1577-1585. PMID: 22878902, PMCID: PMC3415610, DOI: 10.1007/s10552-012-0035-6.Peer-Reviewed Original ResearchConceptsAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaRisk of childhoodFetal growthLymphoblastic leukemiaNon-HispanicsPopulation-based epidemiologic studyHigh birth weightLymphoid progenitor cellsHaplotype associationIGF axisBirth weightEpidemiologic studiesPostnatal periodMalignant transformationAdditional studiesProgenitor cellsSignificant haplotype associationChildhoodRiskLeukemiaHispanicsAssociationHaplotype-based approachNPY
2010
Early life exposure to infections and risk of childhood acute lymphoblastic leukemia
Urayama KY, Ma X, Selvin S, Metayer C, Chokkalingam AP, Wiemels JL, Does M, Chang J, Wong A, Trachtenberg E, Buffler PA. Early life exposure to infections and risk of childhood acute lymphoblastic leukemia. International Journal Of Cancer 2010, 128: 1632-1643. PMID: 21280034, PMCID: PMC3165002, DOI: 10.1002/ijc.25752.Peer-Reviewed Original ResearchConceptsNorthern California Childhood Leukemia StudyAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaNon-Hispanic white childrenEarly life exposureDaycare attendanceLymphoblastic leukemiaEar infectionsLife exposureHispanic childrenCommon childhood infectionsAge 6 monthsWhite childrenCalifornia Childhood Leukemia StudyBirth orderChildhood Leukemia StudyChildhood infectionsCommon infectionsProtective roleInfectionSociodemographic differencesLeukemia StudyHispanic populationChildrenRiskA meta-analysis of the association between day-care attendance and childhood acute lymphoblastic leukaemia
Urayama KY, Buffler PA, Gallagher ER, Ayoob JM, Ma X. A meta-analysis of the association between day-care attendance and childhood acute lymphoblastic leukaemia. International Journal Of Epidemiology 2010, 39: 718-732. PMID: 20110276, PMCID: PMC2878455, DOI: 10.1093/ije/dyp378.Peer-Reviewed Original ResearchConceptsDay care attendanceAcute lymphoblastic leukemiaChildhood acute lymphoblastic leukemiaLymphoblastic leukemiaOdds ratioRisk of childhoodCase-control studyEarly life exposureRandom-effects modelCommon infectionsSubgroup analysisProphylactic interventionsInfluence of timingObservational studyChildhood leukemiaStudy heterogeneityPubMed databaseInfected individualsRisk estimatesSimilar findingsLeukemiaInfectionEarly childhoodRare responsesEffects model
2005
Cytogenetics of Hispanics and Whites with Childhood Acute Lymphoblastic Leukemia in California.
Aldrich M, Zhang L, Wiemels J, Ma X, Loh M, Selvin S, Feusner J, Smith M, Buffler P. Cytogenetics of Hispanics and Whites with Childhood Acute Lymphoblastic Leukemia in California. Blood 2005, 106: 4536. DOI: 10.1182/blood.v106.11.4536.4536.Peer-Reviewed Original ResearchNon-Hispanic whitesChildhood leukemia patientsRisk factorsLeukemia patientsMLL rearrangementsChildhood acute lymphoblastic leukemiaNorthern California Childhood Leukemia StudyPopulation-based studyAcute lymphoblastic leukemiaCalifornia Childhood Leukemia StudyChildhood Leukemia StudyFirst large studyEthnic-specific risk factorsTEL-AML1 translocationSitu hybridization findingsTumor genetic characteristicsCytogenetic characteristicsHeterogeneity of leukemiaLymphoblastic leukemiaEpidemiologic studiesHigh hyperdiploidyTEL-AML1Childhood leukemiaCytogenetic profileDistinct etiologies