Featured Publications
Identifying candidate genes underlying isolated congenital anosmia
Kamarck M, Trimmer C, Murphy N, Gregory K, Manoel D, Logan D, Saraiva L, Mainland J. Identifying candidate genes underlying isolated congenital anosmia. Clinical Genetics 2023, 105: 376-385. PMID: 38148624, PMCID: PMC10932857, DOI: 10.1111/cge.14470.Peer-Reviewed Original ResearchConceptsIsolated congenital anosmiaWhole-exome sequencingCongenital anosmiaGene candidate listsLoss-of-function variantsSpectrum of genetic alterationsOlfactory transduction pathwayZinc ion bindingDeleterious variantsExome sequencingTransduction pathwaysGenetic alterationsOlfactory signalsNon-syndromicOlfactory functionAssociated with olfactionQuality of lifeGenesAnosmiaIon bindingEstimated 1VariantsOlfactionFamilyCNGA2Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease
Kubo S, Fritz J, Raquer-McKay H, Kataria R, Vujkovic-Cvijin I, Al-Shaibi A, Yao Y, Zheng L, Zou J, Waldman A, Jing X, Farley T, Park A, Oler A, Charles A, Makhlouf M, AbouMoussa E, Hasnah R, Saraiva L, Ganesan S, Al-Subaiey A, Matthews H, Flano E, Lee H, Freeman A, Sefer A, Sayar E, Çakır E, Karakoc-Aydiner E, Baris S, Belkaid Y, Ozen A, Lo B, Lenardo M. Congenital iRHOM2 deficiency causes ADAM17 dysfunction and environmentally directed immunodysregulatory disease. Nature Immunology 2021, 23: 75-85. PMID: 34937930, PMCID: PMC11060421, DOI: 10.1038/s41590-021-01093-y.Peer-Reviewed Original ResearchMeSH KeywordsA549 CellsADAM17 ProteinAnimalsCarrier ProteinsChildChild, PreschoolCitrobacter rodentiumColitisCytokinesEnterobacteriaceae InfectionsFemaleHEK293 CellsHumansInfant, NewbornMacrophagesMaleMiceMice, Inbred C57BLMutationPrimary Immunodeficiency DiseasesPseudomonas aeruginosaPseudomonas InfectionsSignal TransductionConceptsIRhom2 deficiencyLoss-of-function mutationsLocal microbial environmentLoss of iRhom2Diverse clinical phenotypesRecurrent respiratory infectionsWild-type miceRelease of cytokinesTumor necrosis factorHemorrhagic colitisCitrobacter rodentiumADAM17 metalloproteinaseFecal microbiotaSuperfamily membersRecurrent infectionsRecurrent pneumoniaTumor necrosisLung involvementColonic involvementHuman immunodeficiencyInflammatory colitisMicrobial environmentOral speciesPseudomonas aeruginosaColitis patientsInherited human c-Rel deficiency disrupts myeloid and lymphoid immunity to multiple infectious agents
Lévy R, Langlais D, Béziat V, Rapaport F, Rao G, Lazarov T, Bourgey M, Zhou Y, Briand C, Moriya K, Ailal F, Avery D, Markle J, Lim A, Ogishi M, Yang R, Pelham S, Emam M, Migaud M, Deswarte C, Habib T, Saraiva L, Moussa E, Guennoun A, Boisson B, Belkaya S, Martinez-Barricarte R, Rosain J, Belkadi A, Breton S, Payne K, Benhsaien I, Plebani A, Lougaris V, Di Santo J, Neven B, Abel L, S. C, Bousfiha A, Marr N, Bustamante J, Liu K, Gros P, Geissmann F, Tangye S, Casanova J, Puel A. Inherited human c-Rel deficiency disrupts myeloid and lymphoid immunity to multiple infectious agents. Journal Of Clinical Investigation 2021, 131: e150143. PMID: 34623332, PMCID: PMC8409595, DOI: 10.1172/jci150143.Peer-Reviewed Original ResearchConceptsCD4+ T cellsMemory CD4+ T cellsC-Rel deficiencyT cellsMyeloid cellsLymphoid cellsB cellsC-RelMultiple infectious agentsNaive CD4+ T cellsCD8+ T cellsAntigen-presenting cell functionConventional DC1sFrequency of NKMemory B cellsNaive T cellsNaive B cellsFunctional deficitsReduced IL-2 productionProduction of Th1Infectious agentsIL-23 productionIL-2 productionInduction of CD86 expressionB cell survival
2023
Functional Characterization of Novel MC4R Variants Identified in Two Unrelated Patients with Morbid Obesity in Qatar
Mohammed I, Selvaraj S, Ahmed W, Al-Barazenji T, Hammad A, Dauleh H, Saraiva L, Al-Shafai M, Hussain K. Functional Characterization of Novel MC4R Variants Identified in Two Unrelated Patients with Morbid Obesity in Qatar. International Journal Of Molecular Sciences 2023, 24: 16361. PMID: 38003551, PMCID: PMC10671262, DOI: 10.3390/ijms242216361.Peer-Reviewed Original ResearchConceptsCREB signaling pathwaysHeterozygous variantsSignaling pathwayVariants associated with obesityIn silico prediction toolsEffects of allelic variationFunctional impactIn silico analysisMonogenic obesityDownstream signaling cascadesLigand binding activityGT1-7 cellsObesity-related genesIdentified variantsAllelic variationFunctional characterizationSilico analysisSanger sequencingPathogenic variantsActivation of PKALeptin-melanocortin pathwaySignaling cascadesMonogenic forms of obesityGenesIn vitro analysis
2022
A Novel FGFR1 Missense Mutation in a Portuguese Family with Congenital Hypogonadotropic Hypogonadism
Fadiga L, Lavrador M, Vicente N, Barros L, Gonçalves C, Al-Naama A, Saraiva L, Lemos M. A Novel FGFR1 Missense Mutation in a Portuguese Family with Congenital Hypogonadotropic Hypogonadism. International Journal Of Molecular Sciences 2022, 23: 4423. PMID: 35457241, PMCID: PMC9026826, DOI: 10.3390/ijms23084423.Peer-Reviewed Original ResearchConceptsCongenital hypogonadotropic hypogonadismMissense mutationsFibroblast growth factor receptor 1Sequence-based prediction methodsPathogenesis of CHHFailure of pubertal developmentIdentified missense mutationsFibroblast growth factor receptor 1 geneHypogonadotropic hypogonadismWhole-exome sequencingNormosmic congenital hypogonadotropic hypogonadismHeterozygous missense mutationExome sequencingGenetic studiesGrowth factor receptor 1Mutation spectrumFibroblast growth factor receptor 1 proteinIncomplete penetranceGonadotropin-releasing hormoneReproductive endocrine disordersAffected siblingsAmino acidsMutationsGenetic defectsGenes