ArticleJournal of medical virology2020
The role of M2-2 PDZ-binding motifs in pulmonary innate immune responses to human metapneumovirus.
Article in Journal of medical virology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed.
- Review
- Human metapneumovirus: understanding the molecular mechanisms and pathology of infection.Journal of virology · 2025Review
- SQSTM1 downregulates avian metapneumovirus subgroup C replication via mediating selective autophagic degradation of viral M2-2 protein.Journal of virology · 2024Article
- Mucosal vaccination induces protection against SARS-CoV-2 in the absence of detectable neutralizing antibodies.NPJ vaccines · 2021Article
- Review
Corrections and comments
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Authors and funding
7 authors.
Funding
Abstract
Human metapneumovirus (HMPV) is a leading cause of lower respiratory tract infection (LRTI) in pediatric and geriatric populations. We recently found that two PDZ-binding motifs of the M2-2 protein, 29-DEMI-32 and 39-KEALSDGI-46, play a significant role in mediating HMPV immune evasion in airway epithelial cells (AECs). However, their role in the overall pulmonary responses to HMPV infection has not been investigated. In this study, we found that two recombinant HMPVs (rHMPV) lacking the individual M2-2 PDZ-binding motif are attenuated in mouse lungs. Mice infected with mutants produce more cytokines/chemokines in bronchoalveolar lavage (BAL) fluid compared to mice infected with wild-type rHMPV. In addition, both mutants are able to enhance the pulmonary recruitment of dendritic cells (DCs) and T cells and induce effective protections against the HMPV challenge. The DC maturation is also significantly improved by the motif mutation. Taken together, our data provide proof-of-principle for two live-attenuated M2-2 mutants to be promising HMPV vaccine candidates that are effective in inducing higher pulmonary innate immunity and generating protection against HMPV infection.
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Registered trials
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