2025
Therapeutic JAK inhibition does not impact lung injury during viral or bacterial pneumonia in male mice
Sharma L, Singh R, Ngeow C, van der Geest R, Duray A, Tolman N, McVerry B, Dela Cruz C, Alcorn J, Bain W, Robinson K. Therapeutic JAK inhibition does not impact lung injury during viral or bacterial pneumonia in male mice. Physiological Reports 2025, 13: e70232. PMID: 39921246, PMCID: PMC11805821, DOI: 10.14814/phy2.70232.Peer-Reviewed Original ResearchConceptsMurine model of influenzaIL-6 deletionMRSA pneumoniaModel of influenzaInflammatory cell recruitmentIL-6Interferon-stimulated genesMurine modelCell recruitmentJAK inhibitionElevated levels of IL-6Tissue injuryLevels of IL-6IL-6 deficiencyJAK inhibitor baricitinibSuppression of cytokinesLimit tissue injuryLung tissue injurySecondary bacterial infectionInfluenza infectionJAK/STAT signaling pathwayBaricitinib treatmentInhibitory therapyClinical efficacyBacterial burdenDamage sensing through TLR9 regulates inflammatory and antiviral responses during influenza infection
Kim J, Yuan Y, Agaronyan K, Zhao A, Wang V, Gau D, Toosi N, Gupta G, Essayas H, Kaminski A, McGovern J, Yu S, Woo S, Lee C, Gandhi S, Saber T, Saleh T, Hu B, Sun Y, Ishikawa G, Bain W, Evankovich J, Chen L, Yun H, Herzog E, Dela Cruz C, Ryu C, Sharma L. Damage sensing through TLR9 regulates inflammatory and antiviral responses during influenza infection. Mucosal Immunology 2025 PMID: 39884393, DOI: 10.1016/j.mucimm.2025.01.008.Peer-Reviewed Original ResearchToll-like receptor 9Anti-influenza immunityToll-like receptor 9 activationImpaired viral clearanceViral clearanceMyeloid cellsTissue injuryInflammatory responseInfluenza infectionPersistent inflammationLung injuryTissue damageToll-like receptor 9 deficiencyReceptor 9Toll-like receptor 9 signalingToll-like receptor 9 ligandInfection of immune cellsInfluenza-infected individualsPersistent lung injuryTLR9-/- miceInfected myeloid cellsInflammatory lung injurySensing tissue damageUnmethylated CpG DNA sequencesMitochondrial DNA
2023
Toll-like Receptor-9 Activation Promotes Persistent Inflammation in the Lung During Influenza Infection
Essayas H, Kim J, Mcgovern J, Peng X, Cai Y, Ishikawa G, Herzog E, Dela Cruz C, Ryu C, Sharma L. Toll-like Receptor-9 Activation Promotes Persistent Inflammation in the Lung During Influenza Infection. 2023, a5608-a5608. DOI: 10.1164/ajrccm-conference.2023.207.1_meetingabstracts.a5608.Peer-Reviewed Original Research
2020
Severe respiratory viral infection induces procalcitonin in the absence of bacterial pneumonia
Gautam S, Cohen AJ, Stahl Y, Toro P, Young GM, Datta R, Yan X, Ristic NT, Bermejo SD, Sharma L, Restrepo M, Dela Cruz CS. Severe respiratory viral infection induces procalcitonin in the absence of bacterial pneumonia. Thorax 2020, 75: 974-981. PMID: 32826284, DOI: 10.1136/thoraxjnl-2020-214896.Peer-Reviewed Original ResearchConceptsPure viral infectionBacterial coinfectionViral infectionInfluenza infectionSevere respiratory viral infectionsAbility of procalcitoninRetrospective cohort studyViral respiratory infectionsRespiratory viral infectionsMarker of severityRespiratory viral illnessSevere viral infectionsSpecificity of procalcitoninCharacteristic curve analysisCellular modelHigher procalcitoninProcalcitonin expressionElevated procalcitoninCohort studyViral illnessRespiratory infectionsAntibiotic administrationBacterial pneumoniaSevere diseaseProcalcitonin
2018
Impact of Cigarette Smoke Exposure on the Lung Fibroblastic Response after Influenza Pneumonia
Lee SW, Sharma L, Kang YA, Kim SH, Chandrasekharan S, Losier A, Brady V, Bermejo S, Andrews N, Yoon CM, Liu W, Lee JY, Kang MJ, Dela Cruz CS. Impact of Cigarette Smoke Exposure on the Lung Fibroblastic Response after Influenza Pneumonia. American Journal Of Respiratory Cell And Molecular Biology 2018, 59: 770-781. PMID: 30110182, PMCID: PMC6293077, DOI: 10.1165/rcmb.2018-0004oc.Peer-Reviewed Original ResearchConceptsCigarette smoke exposureLungs of miceInfluenza infectionInfluenza virusBAL fluidSmoke exposureGrowth factor-β1 levelsAir-exposed lungsInfluenza-infected miceSignificant lung injuryFibroblastic responseLung-derived fibroblastsProtein-positive cellsGrowth factor-β1Influenza pneumoniaDifferent time pointsLung injurySmoking groupSignificant morbidityCS exposureMurine modelFibrotic responseΒ1 levelsFactor-β1Weight recovery
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