2022
Insulin increases placental triglyceride as a potential mechanism for fetal adiposity in maternal obesity
Anam AK, Cooke KM, Dratver MB, O'Bryan JV, Perley LE, Guller SM, Hwang JJ, Taylor HS, Goedeke L, Kliman HJ, Vatner DF, Flannery CA. Insulin increases placental triglyceride as a potential mechanism for fetal adiposity in maternal obesity. Molecular Metabolism 2022, 64: 101574. PMID: 35970449, PMCID: PMC9440306, DOI: 10.1016/j.molmet.2022.101574.Peer-Reviewed Original ResearchConceptsDe novo lipogenesisFetal adiposityFatty acid uptakeMaternal obesityObese womenNormal weightExcess adiposityVillous explantsInsulin receptorNewborns of mothersNormal-weight womenAcid uptakePlacental villous explantsTranscription factor SREBP-1Insulin-like growth factor 2Effect of insulinFatty acid oxidationPlacental triglyceridesPlacental responsesElevated triglyceridesMaternal hyperglycemiaWeight womenGrowth factor 2Diabetes riskPlacental metabolism
2021
YAP1 nuclear efflux and transcriptional reprograming follow membrane diminution upon VSV-G-induced cell fusion
Feliciano D, Ott CM, Espinosa-Medina I, Weigel AV, Benedetti L, Milano KM, Tang Z, Lee T, Kliman HJ, Guller SM, Lippincott-Schwartz J. YAP1 nuclear efflux and transcriptional reprograming follow membrane diminution upon VSV-G-induced cell fusion. Nature Communications 2021, 12: 4502. PMID: 34301937, PMCID: PMC8302681, DOI: 10.1038/s41467-021-24708-2.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAMP-Activated Protein KinasesAnimalsBiological TransportCell FusionCell LineCell Line, TumorCell MembraneCell NucleusCells, CulturedGiant CellsHEK293 CellsHumansMembrane GlycoproteinsMiceRNA-SeqSignal TransductionTranscription FactorsTranscription, GeneticViral Envelope ProteinsYAP-Signaling ProteinsConceptsCell cycle arrestCell fusionNew cellular statesPlasma membrane surface areaRNA-seq analysisCell fusion systemTranscriptional programsNutrient stressCellular statesTranscriptional changesNuclear effluxCytoplasmic glucoseExtrinsic cuesUndifferentiated cellsGlucose transporterFused cellsMechanistic insightsMembrane surface areaNew functionsEndocytosisYAP1 inhibitionEnergetic stateSyncytiaCellsVSVMaternal respiratory SARS-CoV-2 infection in pregnancy is associated with a robust inflammatory response at the maternal-fetal interface
Lu-Culligan A, Chavan AR, Vijayakumar P, Irshaid L, Courchaine EM, Milano KM, Tang Z, Pope SD, Song E, Vogels CBF, Lu-Culligan WJ, Campbell KH, Casanovas-Massana A, Bermejo S, Toothaker JM, Lee HJ, Liu F, Schulz W, Fournier J, Muenker MC, Moore AJ, Team Y, Konnikova L, Neugebauer KM, Ring A, Grubaugh ND, Ko AI, Morotti R, Guller S, Kliman HJ, Iwasaki A, Farhadian SF. Maternal respiratory SARS-CoV-2 infection in pregnancy is associated with a robust inflammatory response at the maternal-fetal interface. Med 2021, 2: 591-610.e10. PMID: 33969332, PMCID: PMC8084634, DOI: 10.1016/j.medj.2021.04.016.Peer-Reviewed Original ResearchConceptsSARS-CoV-2 infectionMaternal-fetal interfaceACE2 expressionNatural killerPregnant womenPlacental cellsAcute respiratory syndrome coronavirus 2 infectionSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infectionSARS-CoV-2-infected womenTerm placentaSyndrome coronavirus 2 infectionCoronavirus 2 infectionPotential immune mechanismsRobust inflammatory responseRobust immune responseCoronavirus disease 2019Detectable viral RNAInterferon-related genesLower ACE2 expressionMajority of placentasPregnancy complicationsPlacental histologyHofbauer cellsEarly pregnancyImmune activation
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