Govind Rajagopalan
Associate Research ScientistCards
About
Research
Publications
2026
Epidermal growth factor receptor regulates Beclin-1 in hyperoxic acute lung injury
Harris Z, Korde A, Khoury J, Manning E, Stanley G, Shin Y, Mitchell K, von der Schulenburg A, Sun Y, Hu B, Shin H, Joerns J, Clark B, Placek L, Unutmaz D, Moldobaeva A, Sharma L, Sauler M, Rajagopalan G, Zhang X, Wang H, Ghaedi M, Kang M, Koff J. Epidermal growth factor receptor regulates Beclin-1 in hyperoxic acute lung injury. BMJ Open Respiratory Research 2026, 13: e003323. PMID: 41592865, PMCID: PMC12853440, DOI: 10.1136/bmjresp-2025-003323.Peer-Reviewed Original ResearchConceptsEpidermal growth factor receptorAcute lung injuryHyperoxic ALIHyperoxic acute lung injuryGrowth factor receptorIn vivo effectsLung injuryOxidant-mediated acute lung injuryFactor receptorIntensive care unit mortalityExposure to high oxygenAlveolar type II cellsDelivery of supplemental oxygenPulmonary cell deathLife-saving therapyPluripotent stem cellsType II cellsNormoxia controlSupplemental oxygenUnit mortalityAlveolar epitheliumBeclin-1Cell death pathwaysStem cellsTherapeutic potential
2025
17 Prevalence and production of superantigens by cystic fibrosis Staphylococcus aureus isolates
Rajagopalan G, Sun Y, Hu B, Chhabra S, Tolentino J, Suzuki N, Natarajan J, Bianco C, Planet P, Koff J. 17 Prevalence and production of superantigens by cystic fibrosis Staphylococcus aureus isolates. Journal Of Cystic Fibrosis 2025, 24: s9a-s10. DOI: 10.1016/s1569-1993(25)01637-6.Peer-Reviewed Original ResearchPrevalence and production of superantigen exotoxins by cystic fibrosis Staphylococcus aureus isolates
Sun Y, Hu B, Chhabra S, Tolentino J, Suzuki N, Natarajan J, Bianco C, Planet P, Sherchand S, Adhikari R, Aman J, Koff J, Rajagopalan G. Prevalence and production of superantigen exotoxins by cystic fibrosis Staphylococcus aureus isolates. Journal Of Cystic Fibrosis 2025, 24: 1110-1113. PMID: 40940262, DOI: 10.1016/j.jcf.2025.08.020.Peer-Reviewed Original ResearchSA isolatesClinical isolatesSuperantigen profilesStaphylococcus aureusCF clinical isolatesArtificial sputum mediumProduction of superantigenic exotoxinsClinical presentationCystic fibrosisSputum mediumCF sputumImmunostimulatory potentialPoor respiratory outcomesCF lung diseaseSuperantigenic exotoxinsInducer of inflammationPresence of SAIsolatesLung diseaseRespiratory outcomesSuperantigensExotoxinImmune systemPediatric CFGenesEpidermal Growth Factor Receptor Regulates Beclin-1 and Autophagy in Hyperoxic Acute Lung Injury
Harris Z, Korde A, Khoury J, Manning E, Stanley G, Sun Y, Hu B, Shin H, Joerns J, Clark B, Mitchell K, Placek L, Unutmaz D, Moldobaeva A, Sharma L, Sauler M, Rajagopalan G, Zhang X, Wang H, Ghaedi M, Kang M, Koff J. Epidermal Growth Factor Receptor Regulates Beclin-1 and Autophagy in Hyperoxic Acute Lung Injury. American Journal Of Respiratory And Critical Care Medicine 2025, 211: a2472-a2472. DOI: 10.1164/ajrccm.2025.211.abstracts.a2472.Peer-Reviewed Original ResearchPersonalized inhaled bacteriophage therapy for treatment of multidrug-resistant Pseudomonas aeruginosa in cystic fibrosis
Chan B, Stanley G, Kortright K, Vill A, Modak M, Ott I, Sun Y, Würstle S, Grun C, Kazmierczak B, Rajagopalan G, Harris Z, Britto C, Stewart J, Talwalkar J, Appell C, Chaudary N, Jagpal S, Jain R, Kanu A, Quon B, Reynolds J, Teneback C, Mai Q, Shabanova V, Turner P, Koff J. Personalized inhaled bacteriophage therapy for treatment of multidrug-resistant Pseudomonas aeruginosa in cystic fibrosis. Nature Medicine 2025, 31: 1494-1501. PMID: 40301561, PMCID: PMC12092284, DOI: 10.1038/s41591-025-03678-8.Peer-Reviewed Original ResearchConceptsPhage therapyCystic fibrosisEvidence of trade-offsTreated with phagesEvolutionary trade-offClinical impact of antimicrobial resistanceMultidrug-resistant Pseudomonas aeruginosaBacterial virulenceAntimicrobial resistance crisisLytic virusesDecrease antibiotic resistanceSputum microbiomePhageBacteriophage therapyImpact of antimicrobial resistanceAntibiotic resistanceResistance crisisStandard antibioticsAntimicrobial resistanceSputum densityMultidrug resistancePulmonary infectionCompassionate basisClinical courseMedian age
2024
Epidermal Growth Factor Receptor Regulates Beclin-1 in Hyperoxia-Induced Lung Injury
Harris Z, Sun Y, Korde A, Hu B, Sharma L, Manning E, Joerns J, Clark B, Stanley G, Shin H, Placek L, Unutmaz D, Chun H, Sauler M, Rajagopalan G, Zhang X, Wang H, Kang M, Koff J. Epidermal Growth Factor Receptor Regulates Beclin-1 in Hyperoxia-Induced Lung Injury. American Journal Of Respiratory And Critical Care Medicine 2024, 209: a6841-a6841. DOI: 10.1164/ajrccm-conference.2024.209.1_meetingabstracts.a6841.Peer-Reviewed Original ResearchRole of Staphylococcus Aureus Superantigens in Cystic Fibrosis Lung Inflammation
Rajagopalan G, Tolentino J, Sun Y, Hu B, Koff J. Role of Staphylococcus Aureus Superantigens in Cystic Fibrosis Lung Inflammation. American Journal Of Respiratory And Critical Care Medicine 2024, 209: a6673-a6673. DOI: 10.1164/ajrccm-conference.2024.209.1_meetingabstracts.a6673.Peer-Reviewed Original ResearchOptimized preparation pipeline for emergency phage therapy against Pseudomonas aeruginosa at Yale University
Würstle S, Lee A, Kortright K, Winzig F, An W, Stanley G, Rajagopalan G, Harris Z, Sun Y, Hu B, Blazanin M, Hajfathalian M, Bollyky P, Turner P, Koff J, Chan B. Optimized preparation pipeline for emergency phage therapy against Pseudomonas aeruginosa at Yale University. Scientific Reports 2024, 14: 2657. PMID: 38302552, PMCID: PMC10834462, DOI: 10.1038/s41598-024-52192-3.Peer-Reviewed Original ResearchConceptsEvolutionary selection pressurePhage characterizationPhage therapyPersistent bacterial infectionsBacteriophage therapyPhageSelection pressurePseudomonas aeruginosaInvestigational new drug applicationBacterial infectionsNew Drug ApplicationTherapyDrug applicationClinical applicationAutographiviridaeBacteriaPotential strategy
2023
Protracted Pulmonary Inflammation in IFN-gamma Deficient Mice Recovering from Cytokine Release Syndrome
Rajagopalan G, Sun Y, Hu B, Harris Z, Stanely G, Koff J. Protracted Pulmonary Inflammation in IFN-gamma Deficient Mice Recovering from Cytokine Release Syndrome. American Journal Of Respiratory And Critical Care Medicine 2023, 207: a1386-a1386. DOI: 10.1164/ajrccm-conference.2023.207.1_meetingabstracts.a1386.Peer-Reviewed Original ResearchA Novel Zinc (II) Porphyrin Is Synergistic with PEV2 Bacteriophage against Pseudomonas aeruginosa Infections
Geyer J, Krupa K, Harris Z, Sun Y, Sharma L, Würstle S, Hu B, Stanley G, Rajagopalan G, Pellot E, Koff J, Robinson J. A Novel Zinc (II) Porphyrin Is Synergistic with PEV2 Bacteriophage against Pseudomonas aeruginosa Infections. Antibiotics 2023, 12: 735. PMID: 37107097, PMCID: PMC10135120, DOI: 10.3390/antibiotics12040735.Peer-Reviewed Original ResearchMinimum inhibitory concentrationMinimum bactericidal concentrationCystic fibrosisAntiviral activityPseudomonas aeruginosa infectionLife-threatening infectionsAntibiotic-resistant infectionsDose-dependent responsePulmonary infectionPotent bactericidal activityAeruginosa infectionMouse lungPsA populationImmune systemVivo modelLung cellsPSA cellsHealth concernNovel therapeuticsInfectionLung modelH441 cellsOpportunistic bacterial pathogenSignificant decreaseInhibitory concentration