2024
Mitochondrial heteroplasmy improves risk prediction for myeloid neoplasms
Hong Y, Pasca S, Shi W, Puiu D, Lake N, Lek M, Ru M, Grove M, Prizment A, Joshu C, Platz E, Guallar E, Arking D, Gondek L. Mitochondrial heteroplasmy improves risk prediction for myeloid neoplasms. Nature Communications 2024, 15: 10133. PMID: 39578475, PMCID: PMC11584845, DOI: 10.1038/s41467-024-54443-3.Peer-Reviewed Original ResearchConceptsClonal hematopoiesis of indeterminate potentialClonal hematopoiesisVariant allele fractionHeteroplasmic variantsIndeterminate potentialMyeloid neoplasmsHeteroplasmyMultiple mutationsAllele fractionMutationsHigh-risk groupPathogenic risk factorsMarkersRisk score modelDeleteriousnessSpliceosomeHematologic malignanciesRisk stratificationNeoplasm developmentNeoplasmsNeoplasm incidenceRisk factorsVariants
2023
Deleterious heteroplasmic mitochondrial mutations are associated with an increased risk of overall and cancer-specific mortality
Hong Y, Battle S, Shi W, Puiu D, Pillalamarri V, Xie J, Pankratz N, Lake N, Lek M, Rotter J, Rich S, Kooperberg C, Reiner A, Auer P, Heard-Costa N, Liu C, Lai M, Murabito J, Levy D, Grove M, Alonso A, Gibbs R, Dugan-Perez S, Gondek L, Guallar E, Arking D. Deleterious heteroplasmic mitochondrial mutations are associated with an increased risk of overall and cancer-specific mortality. Nature Communications 2023, 14: 6113. PMID: 37777527, PMCID: PMC10542802, DOI: 10.1038/s41467-023-41785-7.Peer-Reviewed Original ResearchConceptsSingle nucleotide variantsOwn circular genomeState of heteroplasmyAging-related diseasesNuclear genomeMitochondrial genomeCircular genomeMtDNA single nucleotide variantsMitochondrial DNASomatic cellsMitochondrial mutationsMtDNA heteroplasmyGenomeNucleotide variantsHeteroplasmyDNA moleculesFunctional roleMitochondriaUK BiobankCertain cancersVariantsDNAMutationsCopiesCellsMulti-omics identifies large mitoribosomal subunit instability caused by pathogenic MRPL39 variants as a cause of pediatric onset mitochondrial disease
Amarasekera S, Hock D, Lake N, Calvo S, Grønborg S, Krzesinski E, Amor D, Fahey M, Simons C, Wibrand F, Mootha V, Lek M, Lunke S, Stark Z, Østergaard E, Christodoulou J, Thorburn D, Stroud D, Compton A. Multi-omics identifies large mitoribosomal subunit instability caused by pathogenic MRPL39 variants as a cause of pediatric onset mitochondrial disease. Human Molecular Genetics 2023, 32: 2441-2454. PMID: 37133451, PMCID: PMC10360397, DOI: 10.1093/hmg/ddad069.Peer-Reviewed Original ResearchConceptsQuantitative proteomicsMitochondrial oxidative phosphorylation systemProtein complex assemblySmall mitoribosomal subunitExome sequencingOxidative phosphorylation systemMitochondrial deoxyribonucleic acidMitochondrial ribosomesMitoribosomal subunitDeoxyribonucleic acidGene-disease associationsLarge subunitOXPHOS disordersSmall subunitComplex assemblyPhosphorylation systemProteomic dataComplex abundanceFunctional validationDisease genesGenome sequencingMitochondrial diseaseCryptic exonGene matchingProtein signatures
2019
Estimating prevalence for limb-girdle muscular dystrophy based on public sequencing databases
Liu W, Pajusalu S, Lake NJ, Zhou G, Ioannidis N, Mittal P, Johnson NE, Weihl CC, Williams BA, Albrecht DE, Rufibach LE, Lek M. Estimating prevalence for limb-girdle muscular dystrophy based on public sequencing databases. Genetics In Medicine 2019, 21: 2512-2520. PMID: 31105274, DOI: 10.1038/s41436-019-0544-8.Peer-Reviewed Original ResearchConceptsMuscular dystrophyLimb-girdle muscular dystrophyClinical trialsGene-level mechanismsLower incidencePossible underdiagnosisGeneral populationEpidemiological studiesEpidemiology dataPrevalence estimatesGenetic subtypesMuscle diseaseLGMD subtypesDisease prevalencePrevalenceRecessive diseaseSubtypesPublic sequencing databasesDiseaseTrialsLGMDDystrophyHeterogeneous categorySequencing databasesLeigh syndrome caused by mutations in MTFMT is associated with a better prognosis
Hayhurst H, de Coo I, Piekutowska‐Abramczuk D, Alston C, Sharma S, Thompson K, Rius R, He L, Hopton S, Ploski R, Ciara E, Lake N, Compton A, Delatycki M, Verrips A, Bonnen P, Jones S, Morris A, Shakespeare D, Christodoulou J, Wesol‐Kucharska D, Rokicki D, Smeets H, Pronicka E, Thorburn D, Gorman G, McFarland R, Taylor R, Ng Y. Leigh syndrome caused by mutations in MTFMT is associated with a better prognosis. Annals Of Clinical And Translational Neurology 2019, 6: 515-524. PMID: 30911575, PMCID: PMC6414492, DOI: 10.1002/acn3.725.Peer-Reviewed Original ResearchConceptsPathogenic variantsLeigh syndromeSubcortical white matter abnormalitiesNew casesFrequent initial manifestationLast clinical reviewRetrospective cohort studyBasal ganglia changesWhite matter abnormalitiesRespiratory chain deficiencyBi-allelic pathogenic variantsMitochondrial methionyl-tRNA formyltransferaseMolecular genetic findingsMilder clinical phenotypeInitial manifestationBrainstem lesionsCohort studyMedian ageBetter prognosisChain deficiencyMotor symptomsClinical reviewDisease progressionMultiple respiratory chain deficiencyMuscle biopsy
2015
Leigh Syndrome
Lake N, Bird M, Isohanni P, Paetau A. Leigh Syndrome. Journal Of Neuropathology & Experimental Neurology 2015, 74: 482-492. PMID: 25978847, DOI: 10.1097/nen.0000000000000195.Peer-Reviewed Original ResearchConceptsLeigh syndromeAnimal modelsHypoxic-ischemic encephalopathyBilateral symmetrical lesionsCommon pediatric presentationMolecular mechanismsSevere ATP depletionNeuronal preservationPediatric presentationProgressive encephalopathySymmetrical lesionsBasal gangliaCapillary proliferationCerebrospinal fluidUnique pathologyPathogenic mechanismsLesion developmentPatient samplesReactive oxygen speciesGliosisHyperlacticacidemiaEncephalopathyATP depletionSyndromePathology