ArticleFrontiers in immunology2022
Blockade of TMPRSS2-mediated priming of SARS-CoV-2 by lactoferricin.
Article in Frontiers in immunology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 18 citations in OpenAlex.
- A Double-Edged Sword: Extracellular Serine Proteases as Facilitators of Infection and Mediators of Immunity.Molecules (Basel, Switzerland) · 2026Review
- Rather a versatile multi-tool than a sword: an integral role of the plasminogen system in health and disease.Frontiers in immunology · 2026Review
- Article
- Lactoferrin Binds through Its N-Terminus to the Receptor-Binding Domain of the SARS-CoV-2 Spike Protein.Pharmaceuticals (Basel, Switzerland) · 2024Article
- The potential of lactoferrin as antiviral and immune-modulating agent in viral infectious diseases.Frontiers in immunology · 2024Review
- Immunomodulatory effect of bovine lactoferrin during SARS-CoV-2 infection.Frontiers in immunology · 2024Article
- Viruses and Human Milk: Transmission or Protection?Advances in nutrition (Bethesda, Md.) · 2023Review
- Lactoferrin, a Great Wall of host-defence?Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2023Article
- Time to Kill and Time to Heal: The Multifaceted Role of Lactoferrin and Lactoferricin in Host Defense.Pharmaceutics · 2023Review
- Importance, Applications and Features of Assays Measuring SARS-CoV-2 Neutralizing Antibodies.International journal of molecular sciences · 2023Review
- Review
- Evaluation of the Relationship Between Serum miR-200b-3p and miR-214-3p Expression Levels with Soluble ACE2 and TMPRSS2 in COVID-19 Patients.Iranian journal of pharmaceutical research : IJPRArticle
Corrections and comments
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Authors and funding
11 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In addition to vaccines, there is an urgent need for supplemental antiviral therapeutics to dampen the persistent COVID-19 pandemic caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). The transmembrane protease serine 2 (TMPRSS2), that is responsible for proteolytic priming of the SARS-CoV-2 spike protein, appears as a rational therapeutic target. Accordingly, selective inhibitors of TMPRSS2 represent potential tools for prevention and treatment of COVID-19. Previously, we identified the human milk glycoprotein lactoferrin as a natural inhibitor of plasminogen conversion to plasmin, a serine protease homologous to TMPRSS2. Here, we tested whether lactoferrin and lactoferricin, a biologically active natural peptide produced by pepsin-mediated digestion of lactoferrin, together with synthetic peptides derived from lactoferrin, were able to block TMPRSS2 and SARS-CoV-2 infection. Particularly, we revealed that both lactoferricin and the N-terminal synthetic peptide pLF1 significantly inhibited: i) proteolytic activity of TMPRSS2 and plasmin, ii) proteolytic processing of the SARS-CoV-2 spike protein, and iii) SARS-CoV-2 infection of SARS-CoV-2-permissive cells. Thus, natural and synthetic peptides derived from lactoferrin represent feasible candidates for supporting prevention and treatment of COVID-19.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.