2017
Viral Infection Sensitizes Human Fetal Membranes to Bacterial Lipopolysaccharide by MERTK Inhibition and Inflammasome Activation.
Cross SN, Potter JA, Aldo P, Kwon JY, Pitruzzello M, Tong M, Guller S, Rothlin CV, Mor G, Abrahams VM. Viral Infection Sensitizes Human Fetal Membranes to Bacterial Lipopolysaccharide by MERTK Inhibition and Inflammasome Activation. The Journal Of Immunology 2017, 199: 2885-2895. PMID: 28916522, PMCID: PMC5659726, DOI: 10.4049/jimmunol.1700870.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCells, CulturedChorioamnionitisC-Mer Tyrosine KinaseExtraembryonic MembranesFemaleGammaherpesvirinaeHerpesviridae InfectionsHerpesvirus 2, HumanHumansImmunizationInflammasomesIntercellular Signaling Peptides and ProteinsInterleukin-1betaLipopolysaccharidesMiceMice, Inbred C57BLMice, KnockoutPregnancyPremature BirthProto-Oncogene ProteinsReceptor Protein-Tyrosine KinasesConceptsFetal membranesViral infectionImmune responseTAM receptorsSubsequent preterm birthAdverse pregnancy outcomesIL-1β productionIL-1β responseHerpes viral infectionsInnate immune responseVivo mouse modelHuman fetal membranesAggravated inflammationIL-1β processingPregnancy outcomesPreterm birthAssociated complicationsPremature rupturePregnant womenLocal infectionInflammasome activationMerTK inhibitionMouse modelBacterial LPSLigand expression
2014
Human Fetal Membranes Generate Distinct Cytokine Profiles in Response to Bacterial Toll-Like Receptor and Nod-Like Receptor Agonists1
Hoang M, Potter JA, Gysler SM, Han CS, Guller S, Norwitz ER, Abrahams VM. Human Fetal Membranes Generate Distinct Cytokine Profiles in Response to Bacterial Toll-Like Receptor and Nod-Like Receptor Agonists1. Biology Of Reproduction 2014, 90: 39, 1-9. PMID: 24429216, PMCID: PMC4076407, DOI: 10.1095/biolreprod.113.115428.Peer-Reviewed Original ResearchConceptsBacterial toll-like receptorsToll-like receptorsPathogen-associated molecular patternsInnate immune pattern recognition receptorsNOD-like receptorsPattern recognition receptorsImmune pattern recognition receptorsCytokine profileIL1B secretionFetal membranesCpG ODNCaspase-1Subsequent preterm birthInflammatory cytokine profilePreterm premature ruptureDistinct cytokine profilesMaternal-fetal interfaceInfection-associated inflammationMild stimulatory effectNLR agonistsPreterm birthPremature ruptureProinflammatory cytokinesCytokine productionMCP-1
2013
Viral Infection of the Pregnant Cervix Predisposes to Ascending Bacterial Infection
Racicot K, Cardenas I, Wünsche V, Aldo P, Guller S, Means RE, Romero R, Mor G. Viral Infection of the Pregnant Cervix Predisposes to Ascending Bacterial Infection. The Journal Of Immunology 2013, 191: 934-941. PMID: 23752614, PMCID: PMC4153356, DOI: 10.4049/jimmunol.1300661.Peer-Reviewed Original ResearchConceptsFemale reproductive tractBacterial infectionsViral infectionLower female reproductive tractReproductive tractAntimicrobial peptide expressionProduction of mucusPreterm laborPreterm birthNeonatal mortalityUterine cavityUterine infectionMouse modelPeptide expressionInfectionCervixPolymicrobial diseaseMajor causeMultifactorial approachCommon routePregnancyBirthUterusTractAntimicrobial peptidesDecreased Levels of Folate Receptor‐β and Reduced Numbers of Fetal Macrophages (Hofbauer Cells) in Placentas from Pregnancies with Severe Pre‐Eclampsia
Tang Z, Buhimschi IA, Buhimschi CS, Tadesse S, Norwitz E, Niven‐Fairchild T, Huang S, Guller S. Decreased Levels of Folate Receptor‐β and Reduced Numbers of Fetal Macrophages (Hofbauer Cells) in Placentas from Pregnancies with Severe Pre‐Eclampsia. American Journal Of Reproductive Immunology 2013, 70: 104-115. PMID: 23480364, PMCID: PMC3686834, DOI: 10.1111/aji.12112.Peer-Reviewed Original ResearchConceptsSpontaneous preterm birthPre-eclampsiaAge-matched normotensive controlsPreterm pre-eclampsiaSevere pre eclampsiaPathophysiology of PEPregnancy complicationsPreterm birthNormotensive controlsHofbauer cellsFetal mortalityUnknown etiologyPlacental expressionSPTB groupMacrophage functionPlacentaSevere preFetal macrophagesWestern blottingMajor causeProtein expressionPlacental genesReverse transcription-PCR analysisMarker mRNAsTranscription-PCR analysis
2012
Glucocorticoids Enhance CD163 Expression in Placental Hofbauer Cells
Tang Z, Niven-Fairchild T, Tadesse S, Norwitz ER, Buhimschi CS, Buhimschi IA, Guller S. Glucocorticoids Enhance CD163 Expression in Placental Hofbauer Cells. Endocrinology 2012, 154: 471-482. PMID: 23142809, PMCID: PMC3529384, DOI: 10.1210/en.2012-1575.Peer-Reviewed Original ResearchConceptsHofbauer cellsGC treatmentGC administrationCD163 expressionDEX treatmentCD68 mRNASpontaneous preterm birthMacrophage marker genesPlacental explant culturesAntiinflammatory M2 macrophagesHuman term placentaExpression of FRPreterm deliveryPreterm birthCD163 mRNAM2 macrophagesReceptor mRNAGC actionSynthetic GCFetal capillariesTerm placentaPlacental fibroblastsFlow cytometryCD163 proteinFetal macrophages