Coronavirus Lung Infection Impairs Host Immunity against Secondary Bacterial Infection by Promoting Lysosomal Dysfunction.
Peng X, Kim J, Gupta G, Agaronyan K, Mankowski MC, Korde A, Takyar SS, Shin HJ, Habet V, Voth S, Audia JP, Chang D, Liu X, Wang L, Cai Y, Tian X, Ishibe S, Kang MJ, Compton S, Wilen CB, Dela Cruz CS, Sharma L. Coronavirus Lung Infection Impairs Host Immunity against Secondary Bacterial Infection by Promoting Lysosomal Dysfunction. The Journal Of Immunology 2022, 209: 1314-1322. PMID: 36165196, PMCID: PMC9523490, DOI: 10.4049/jimmunol.2200198.Peer-Reviewed Original ResearchConceptsSARS-CoV-2Bacterial infectionsMouse modelCoronavirus infectionLysosomal dysfunctionMajor health care challengeLung immune cellsLung tissue damageSecondary bacterial infectionImpair host immunityIL-1β releaseHealth care challengesCell deathPyroptotic cell deathBacterial killing abilityIL-1βBacterial clearanceImmune cellsSecondary infectionHost immunityAlveolar macrophagesTissue damageΒ-coronavirusStructural cellsCare challengesRestriction of Viral Replication, Rather than T Cell Immunopathology, Drives Lethality in Murine Norovirus CR6-Infected STAT1-Deficient Mice
Sharon AJ, Filyk HA, Fonseca NM, Simister RL, Filler RB, Yuen W, Hardman BK, Robinson HG, Seo JH, Rocha-Pereira J, Welch I, Neyts J, Wilen CB, Crowe SA, Osborne LC. Restriction of Viral Replication, Rather than T Cell Immunopathology, Drives Lethality in Murine Norovirus CR6-Infected STAT1-Deficient Mice. Journal Of Virology 2022, 96: e02065-21. PMID: 35107369, PMCID: PMC8941907, DOI: 10.1128/jvi.02065-21.Peer-Reviewed Original ResearchConceptsAntiviral T cell responsesT cell responsesSTAT1-deficient miceSystemic viral infectionCell responsesViral replicationViral infectionTissue damageViral-induced tissue damageVirus-induced tissue damageAltered T-cell responsesLimited viral replicationT cell immunopathologyOngoing inflammatory responseAdaptive immune cellsUncontrolled viral replicationBreakdown of toleranceImmune-mediated pathologyHost-directed mechanismViral componentsAntiviral CD4Lethal immunopathologyInfectious insultsImmune activationImmunological tolerance