2023
Tissue Biology: In Search of a New Paradigm
Adler M, Chavan A, Medzhitov R. Tissue Biology: In Search of a New Paradigm. Annual Review Of Cell And Developmental Biology 2023, 39: 67-89. PMID: 37607470, DOI: 10.1146/annurev-cellbio-120420-113830.Peer-Reviewed Original Research
2021
Maternal 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
2020
Evolution of Embryo Implantation Was Enabled by the Origin of Decidual Stromal Cells in Eutherian Mammals
Chavan AR, Griffith OW, Stadtmauer D, Maziarz J, Pavlicev M, Fishman R, Koren L, Romero R, Wagner GP. Evolution of Embryo Implantation Was Enabled by the Origin of Decidual Stromal Cells in Eutherian Mammals. Molecular Biology And Evolution 2020, 38: 1060-1074. PMID: 33185661, PMCID: PMC7947829, DOI: 10.1093/molbev/msaa274.Peer-Reviewed Original ResearchConceptsEutherian mammalsEutherian lineagesDecidual stromal cellsNovel cell typesStromal cellsInflammatory responseStem lineageEutherian pregnancyCommon ancestorEvolutionary mechanismsExtended gestationMost marsupialsEmbryo attachmentEmbryo implantationMarsupialsLineagesCell typesMammalsMechanistic understandingEutheriansHelper T cellsFetal-maternal interfaceMammalian pregnancyMaternal tissuesNeutrophil recruitment
2019
Endometrial recognition of pregnancy occurs in the grey short-tailed opossum ( Monodelphis domestica).
Griffith OW, Chavan AR, Pavlicev M, Protopapas S, Callahan R, Maziarz J, Wagner GP. Endometrial recognition of pregnancy occurs in the grey short-tailed opossum ( Monodelphis domestica). Proceedings Of The Royal Society B 2019, 286: 20190691. PMID: 31213185, PMCID: PMC6599997, DOI: 10.1098/rspb.2019.0691.Peer-Reviewed Original ResearchConceptsRecognition of pregnancyGene expression changesProtein level differencesUpregulation of genesOestrous cycleStem lineagePlesiomorphic modeTranscriptional landscapeEutherian mammalsTranscriptional differencesUterus of femalesAmerican marsupialsMost marsupialsExpression changesFetal supportMarsupialsSteroid hormone profilesOpossumGenesEmbryosHuman pregnancyTransporter abundanceHormone profilesMaternal physiologyPregnancy
2018
The mammalian decidual cell evolved from a cellular stress response
Erkenbrack EM, Maziarz JD, Griffith OW, Liang C, Chavan AR, Nnamani MC, Wagner GP. The mammalian decidual cell evolved from a cellular stress response. PLOS Biology 2018, 16: e2005594. PMID: 30142145, PMCID: PMC6108454, DOI: 10.1371/journal.pbio.2005594.Peer-Reviewed Original ResearchConceptsCellular stress responseNovel cell typesStress responseEndometrial stromal fibroblastsCell typesCell type diversityDecidual stromal cellsCore regulatory genesOxidative stress responseDecidual cell typesEvolutionary noveltyPrecursor cell typesEffector genesRegulatory genesEutherian mammalsTranscription factorsOpossum Monodelphis domesticaOrganismal structureType diversityMolecular mechanismsAnimal speciesMonodelphis domesticaGenesStromal cellsSpeciesThe uterine decidual stromal cell: A stabilized stress response?
Wagner G, Erkenbrack E, Maziarz J, Chavan A. The uterine decidual stromal cell: A stabilized stress response? Journal Of Reproductive Immunology 2018, 128: 48. DOI: 10.1016/j.jri.2018.06.023.Peer-Reviewed Original ResearchGenetic Associations With Gestational Duration and Spontaneous Preterm Birth
Zhang G, Feenstra B, Bacelis J, Liu X, Muglia L, Juodakis J, Miller D, Litterman N, Jiang P, Russell L, Hinds D, Hu Y, Weirauch M, Chen X, Chavan A, Wagner G, Pavliev M, Nnamani M, Maziarz J, Karjalainen M, Ramet M, Sengpiel V, Geller F, Boyd H, Palotie A, Momany A, Bedell B, Ryckman K, Huusko J, Forney C, Kottyan L, Hallman M, Teramo K, Nohr E, Smith G, Melbye M, Jacobsson B, Muglia L. Genetic Associations With Gestational Duration and Spontaneous Preterm Birth. Obstetrical & Gynecological Survey 2018, 73: 83-85. DOI: 10.1097/01.ogx.0000530434.15441.45.Peer-Reviewed Original Research
2017
Reply to Liu: Inflammation before implantation both in evolution and development
Griffith OW, Chavan AR, Protopapas S, Maziarz J, Romero R, Wagner GP. Reply to Liu: Inflammation before implantation both in evolution and development. Proceedings Of The National Academy Of Sciences Of The United States Of America 2017, 115: e3-e4. PMID: 29233940, PMCID: PMC5776823, DOI: 10.1073/pnas.1717001115.Peer-Reviewed Original ResearchGenetic Associations with Gestational Duration and Spontaneous Preterm Birth
Zhang G, Feenstra B, Bacelis J, Liu X, Muglia LM, Juodakis J, Miller DE, Litterman N, Jiang PP, Russell L, Hinds DA, Hu Y, Weirauch MT, Chen X, Chavan AR, Wagner GP, Pavličev M, Nnamani MC, Maziarz J, Karjalainen MK, Rämet M, Sengpiel V, Geller D, Boyd HA, Palotie A, Momany A, Bedell B, Ryckman KK, Huusko JM, Forney CR, Kottyan LC, Hallman M, Teramo K, Nohr EA, Davey-Smith G, Melbye M, Jacobsson B, Muglia LJ. Genetic Associations with Gestational Duration and Spontaneous Preterm Birth. New England Journal Of Medicine 2017, 377: 1156-1167. PMID: 28877031, PMCID: PMC5561422, DOI: 10.1056/nejmoa1612665.Peer-Reviewed Original ResearchMeSH KeywordsAdenylyl CyclasesDatasets as TopicFemaleGenetic Predisposition to DiseaseGenetic VariationGenome-Wide Association StudyGestational AgeHumansPeptide Elongation FactorsPhenotypePolymorphism, Single NucleotidePregnancyPremature BirthRas ProteinsReceptor, Angiotensin, Type 2Regression AnalysisTrans-ActivatorsWnt4 ProteinConceptsGestational durationPreterm birthDiscovery setSpontaneous preterm birthDuration of gestationMother-infant dyadsGenomewide association studiesGenetic associationVascular controlMaternal nutritionSignificant genomewide associationEstrogen receptorPossible genetic associationDichotomous outcomesUterine developmentGenetic factorsMechanistic involvementReplication data setsAssociation studiesBirthSuggestive significanceGenomewide significanceAGTR2Replication setAssociationThe inflammation paradox in the evolution of mammalian pregnancy: turning a foe into a friend
Chavan AR, Griffith OW, Wagner GP. The inflammation paradox in the evolution of mammalian pregnancy: turning a foe into a friend. Current Opinion In Genetics & Development 2017, 47: 24-32. PMID: 28850905, DOI: 10.1016/j.gde.2017.08.004.Peer-Reviewed Original ResearchConceptsAdaptive immune systemMammalian pregnancyOutcome of pregnancySemi-allogenic fetusInfluence of inflammationContinuation of pregnancyImmunological paradoxAcute inflammationMaternal healthWorse inflammationEndometrial inflammationVascular permeabilityEmbryo implantationInflammationImmune systemPregnancyMaternal reactionsFetusesImplantationMatrix reorganizationEmbryo implantation evolved from an ancestral inflammatory attachment reaction
Griffith OW, Chavan AR, Protopapas S, Maziarz J, Romero R, Wagner GP. Embryo implantation evolved from an ancestral inflammatory attachment reaction. Proceedings Of The National Academy Of Sciences Of The United States Of America 2017, 114: e6566-e6575. PMID: 28747528, PMCID: PMC5559003, DOI: 10.1073/pnas.1701129114.Peer-Reviewed Original ResearchConceptsTerm pregnancyMaterno-fetal interfaceEGF-like growth factorInflammatory responseImmune responseEmbryo implantationPregnancyGrowth factorMucin 1Molecular changesImplantationKey markersMiceParturitionExhibit expressionMorphological changesHumansOpossumEutherian mammalsUterusImmunohistochemistryTranscriptomic analysisPlacentaImplantation reactionLocalization profilesEvolution of Gene Expression in the Uterine Cervix related to Steroid Signaling: Conserved features in the regulation of cervical ripening
Wagner GP, Nnamani MC, Chavan AR, Maziarz J, Protopapas S, Condon J, Romero R. Evolution of Gene Expression in the Uterine Cervix related to Steroid Signaling: Conserved features in the regulation of cervical ripening. Scientific Reports 2017, 7: 4439. PMID: 28667298, PMCID: PMC5493687, DOI: 10.1038/s41598-017-04759-6.Peer-Reviewed Original ResearchConceptsGene expressionComparative transcriptomic studyEutherian mammalsPlacental mammalsCervical ripeningTranscriptomic studiesEutherian speciesSteroid signalingUterine cervixChange expressionTiming of parturitionMammalsPremature cervical ripeningFunctional progesterone withdrawalDecreased expressionMaintenance of pregnancyExpressionSpeciesRipeningPutative mechanismsPreterm birthProgesterone withdrawalProgesterone receptorMouse cervixCervixSingle-cell transcriptomics of the human placenta: inferring the cell communication network of the maternal-fetal interface
Pavličev M, Wagner GP, Chavan AR, Owens K, Maziarz J, Dunn-Fletcher C, Kallapur SG, Muglia L, Jones H. Single-cell transcriptomics of the human placenta: inferring the cell communication network of the maternal-fetal interface. Genome Research 2017, 27: 349-361. PMID: 28174237, PMCID: PMC5340963, DOI: 10.1101/gr.207597.116.Peer-Reviewed Original ResearchConceptsSingle-cell transcriptomicsG protein-coupled receptorsCell communication networksGene expression profilesReceptor-ligand pairsCell type identificationOrganismal functionInteraction hubTrophoblast cellsGene expressionExpression profilesEndometrial stromal fibroblastsSpecific expressionCell typesInteractomeTranscriptomicsRich resourceCell interactionsPlacental trophoblast cellsDecidual cellsImmune signalsStromal cellsGrowth factorStromal fibroblastsEndometrial stromal cells
2016
Utero-placental cell interactions revealed by single cell transcriptomics
Pavlicev M, Jones H, Owens K, Chavan A, Wagner G, Muglia L. Utero-placental cell interactions revealed by single cell transcriptomics. Placenta 2016, 45: 64. DOI: 10.1016/j.placenta.2016.06.015.Peer-Reviewed Original ResearchThe Transcriptomic Evolution of Mammalian Pregnancy: Gene Expression Innovations in Endometrial Stromal Fibroblasts
Kin K, Maziarz J, Chavan AR, Kamat M, Vasudevan S, Birt A, Emera D, Lynch VJ, Ott TL, Pavlicev M, Wagner GP. The Transcriptomic Evolution of Mammalian Pregnancy: Gene Expression Innovations in Endometrial Stromal Fibroblasts. Genome Biology And Evolution 2016, 8: 2459-2473. PMID: 27401177, PMCID: PMC5010902, DOI: 10.1093/gbe/evw168.Peer-Reviewed Original ResearchConceptsEndometrial stromal fibroblastsGene expression changesTherian speciesEutherian lineagesTranscriptome compositionBovine lineageStem lineageNatural selectionStromal fibroblastsTherian mammalsEutherian mammalsKey genesLoss of expressionTranscriptomic evolutionGene expressionExpression changesLatter cell typeGenesLineagesCell typesCell type presentMammalsMammalian pregnancyExpressionTissue invasionThe fetal-maternal interface of the nine-banded armadillo: endothelial cells of maternal sinus are partially replaced by trophoblast
Chavan AR, Wagner GP. The fetal-maternal interface of the nine-banded armadillo: endothelial cells of maternal sinus are partially replaced by trophoblast. Zoological Letters 2016, 2: 11. PMID: 27284459, PMCID: PMC4899922, DOI: 10.1186/s40851-016-0048-1.Peer-Reviewed Original ResearchMaternal immune systemImmune systemFetal-maternal immune toleranceSemi-allogenic fetusFetal-maternal interfaceVascular endothelial layerUterine connective tissuePresence of leukocytesEndometrial stromaImmune toleranceImmunohistochemical toolsIntervillous spaceUterine tissuePlacental fibrinoidTrophoblast cellsInvasive placentationEndothelial liningMaternal sinusesEndothelial cellsEndothelial layerSinusConnective tissueBlood sinusesMaternal tissuesLuminal sideWhat was the ancestral function of decidual stromal cells? A model for the evolution of eutherian pregnancy
Chavan AR, Bhullar BA, Wagner GP. What was the ancestral function of decidual stromal cells? A model for the evolution of eutherian pregnancy. Placenta 2016, 40: 40-51. PMID: 27016782, DOI: 10.1016/j.placenta.2016.02.012.Peer-Reviewed Original ResearchConceptsEutherian mammalsDecidual stromal cellsAncestral functionEutherian cladesMajor lineagesStem lineageEutherian pregnancyStromal cellsEutherian speciesStem eutheriansExtended gestationMammalsEutheriansLineagesMaintenance of pregnancyCellsInvasive placentationLaurasiatheriaCladeEuarchontogliresAfrotheriaFetal-maternal interfaceXenarthraDecidual cellsSpecies
2012
Polygenic cis-regulatory adaptation in the evolution of yeast pathogenicity
Fraser H, Levy S, Chavan A, Shah H, Perez J, Zhou Y, Siegal M, Sinha H. Polygenic cis-regulatory adaptation in the evolution of yeast pathogenicity. Genome Research 2012, 22: 1930-1939. PMID: 22645260, PMCID: PMC3460188, DOI: 10.1101/gr.134080.111.Peer-Reviewed Original ResearchConceptsSingle-allele knockoutEvolution of pathogenicityDiverse yeast strainsCis-regulatory mutationsMode of evolutionWild-type progenitorPathogenic yeastsGene expression levelsPolygenic adaptationSelective sweepsPathogenic lifestyleNew genesMorphological traitsYeast SaccharomycesMammalian hostsMicrobial pathogenicityHorizontal transferStandard laboratory conditionsGene expressionCompensatory mutationsYeast pathogenicityYeast strainGrowth advantagePleiotropic effectsGenetic variants