2024
TLR8‐activating miR‐146a‐3p is an intermediate signal contributing to fetal membrane inflammation in response to bacterial LPS
Georges H, Cassin C, Tong M, Abrahams V. TLR8‐activating miR‐146a‐3p is an intermediate signal contributing to fetal membrane inflammation in response to bacterial LPS. Immunology 2024, 172: 577-587. PMID: 38631842, PMCID: PMC11223956, DOI: 10.1111/imm.13794.Peer-Reviewed Original ResearchMiR-146a-3pPreterm birthFetal membranesToll-like receptorsExpression of miR-146a-3pLipopolysaccharide exposureMouse model of pregnancyIL-8Response to bacterial LPSAssociated with chorioamnionitisFetal membrane inflammationHuman FM explantsMouse fetal membranesInduced preterm birthBacterial lipopolysaccharideMaternal-fetal interfaceDanger signalsWild-type miceIn vivo mouse modelModel of pregnancyInterleukin (IL)-8Pro-inflammatory roleResponse to bacterial lipopolysaccharideAssociated with elevated levelsResponse to LPS
2019
Lipopolysaccharide-Stimulated Human Fetal Membranes Induce Neutrophil Activation and Release of Vital Neutrophil Extracellular Traps.
Tong M, Potter JA, Mor G, Abrahams VM. Lipopolysaccharide-Stimulated Human Fetal Membranes Induce Neutrophil Activation and Release of Vital Neutrophil Extracellular Traps. The Journal Of Immunology 2019, 203: 500-510. PMID: 31167775, PMCID: PMC6616008, DOI: 10.4049/jimmunol.1900262.Peer-Reviewed Original ResearchConceptsNeutrophil extracellular trapsNeutrophil recruitmentFetal membranesReactive oxygen species productionPreterm birthExtracellular trapsOxygen species productionCytokine/chemokine secretionChemokine/cytokine productionMajor risk factorSpecies productionBacterial LPS stimulationNeutrophil infiltrationProinflammatory factorsFetal interfaceChemokine secretionNeonatal mortalityCytokine productionNeutrophil activationRisk factorsTissue injuryNeutrophil viabilityLPS stimulationEx vivoNET formation
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
Single- and double-stranded viral RNA generate distinct cytokine and antiviral responses in human fetal membranes
Bakaysa SL, Potter JA, Hoang M, Han CS, Guller S, Norwitz ER, Abrahams VM. Single- and double-stranded viral RNA generate distinct cytokine and antiviral responses in human fetal membranes. Molecular Human Reproduction 2014, 20: 701-708. PMID: 24723465, PMCID: PMC4072183, DOI: 10.1093/molehr/gau028.Peer-Reviewed Original ResearchConceptsHuman fetal membranesToll-like receptorsMIP-1βMIP-1αFetal membranesAntiviral responseIL-1βIL-6IL-2Viral infectionG-CSFCytokine/chemokine profilesViral ssRNAAdverse pregnancy outcomesMaternal-fetal interfaceInfection-associated inflammationMCP-1 secretionViral dsRNA analogueTNF-α productionMIP-1α secretionTLR adapter proteinsExpression of IFNβPregnancy outcomesCytokine profileChemokine profilesHuman 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