ArticleImmune network2022
Application of Antimicrobial Peptide LL-37 as an Adjuvant for Middle East Respiratory Syndrome-Coronavirus Antigen Induces an Efficient Protective Immune Response Against Viral Infection After Intranasal Immunization.
Article in Immune network, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 9 citations in OpenAlex.
- Computational Design of a Trivalent Multi-Epitope mRNA Vaccine Candidate Against Western, Eastern, and Venezuelan Equine Encephalitis Viruses.Pharmaceutical research · 2026Article
- Recombinant Japanese Encephalitis Virus Envelope Antigen Presented on CoPoP Liposomes Elicits Cellular Immunity and Protects Mice From Lethal Challenge.Immune network · 2026Article
- Adaptive immune response to the autoantigen LL-37 differentiates atherosclerotic cardiovascular disease phenotypes.Clinical & translational immunology · 2026Article
- Antimicrobial Peptides Against Arboviruses: Mechanisms, Challenges, and Future Directions.Probiotics and antimicrobial proteins · 2025Review
- Harnessing immunotherapeutic molecules and diagnostic biomarkers as human-derived adjuvants for MERS-CoV vaccine development.Frontiers in immunology · 2025Review
- Glioblastoma Multiforme: Sensitivity to Antimicrobial Peptides LL-37 and PG-1, and Their Combination with Chemotherapy for Predicting the Overall Survival of Patients.Pharmaceutics · 2024Article
- Synergistic effects of mesenchymal stem cell-derived extracellular vesicles and dexamethasone on macrophage polarization under inflammatory conditions.Inflammopharmacology · 2024Article
- Understanding the Roles of Host Defense Peptides in Immune Modulation: From Antimicrobial Action to Potential as Adjuvants.Journal of microbiology and biotechnology · 2023Review
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The human antimicrobial peptide LL-37 has chemotactic and modulatory activities in various immune cells, including dendritic cells. Because of its characteristics, LL-37 can be considered an adjuvant for vaccine development. In this study, we confirmed the possible adjuvant activity of LL-37 in mucosal vaccine development against Middle East respiratory syndrome-coronavirus (MERS-CoV) by means of intranasal immunization in C57BL/6 and human dipeptidyl peptidase 4 (hDPP4)-transgenic (hDPP4-Tg) mice. Intranasal immunization using the receptor-binding domain (RBD) of MERS-CoV spike protein (S-RBD) recombined with LL-37 (S-RBD-LL-37) induced an efficient mucosal IgA and systemic IgG response with virus-neutralizing activity, compared with S-RBD. Ag-specific CTL stimulation was also efficiently induced in the lungs of mice that had been intranasally immunized with S-RBD-LL-37, compared with S-RBD. Importantly, intranasal immunization of hDPP4-Tg mice with S-RBD-LL-37 led to reduced immune cell infiltration into the lungs after infection with MERS-CoV. Finally, intranasal immunization of hDPP4-Tg mice with S-RBD-LL-37 led to enhanced protective efficacy, with increased survival and reduced body weight loss after challenge infection with MERS-CoV. Collectively, these results suggest that S-RBD-LL-37 is an effective intranasal vaccine candidate molecule against MERS-CoV infection.
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Registered trials
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