Enterocin CRL35 inhibits late stages of HSV-1 and HSV-2 replication in vitro
Open accessAbstract
The replication of herpes simplex virus (HSV) type 1 and 2 in Vero cells is inhibited in the presence of enterocin CRL35 (ECRL), a bacteriocin produced by Enterococcus faecium CRL35. Attempts to resolve the mode of action of ECRL indicate that virus adsorption and penetration are not affected. Instead, a late step of virus multiplication is hindered since the addition of 100 microg/ml of ECRL at 8h post infection still causes a 90% inhibition of virus release. The effect of ECRL on HSV antigen expression was studied by immunofluorescence using a polyclonal serum and a monoclonal antibody against glycoprotein D (gamma protein). These studies indicated that ECRL impeded the second round of infection, apparently as a consequence of the inhibition of glycoprotein D expression. The replication of syncytial mutants of HSV-1 was significantly inhibited at a ECRL concentration of 25 microg/ml. Both the percentage of fused cells and the polykaryocyte size were affected. Studies on the effect of ECRL on viral protein synthesis showed that in the presence of ECRL, HSV late gamma proteins were not synthesized. From these findings, it is concluded that inhibition of HSV spreading by ECRL is due to the prevention of mainly late glycoprotein synthesis.
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Enterocin CRL35 from Enterococcus faecium lowers glycoprotein gD synthesis, disrupting a slightly earlier step in the HSV infectious cycle compared to subtilosin.
“enterocin CRL35 from Enterococcus faecium was found to lower glycoprotein gD synthesis, (Wachsman et al., 2003) thus seemingly disrupting a slightly earlier step in the infectious cycle of HSV compared to subtilosin.”
From Viral Infections, the Microbiome, and Probiotics (2021) · cites this paper as Wachsman et al., 2003
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- Authors
- Wachsman, M. B., Castilla, V., Holgado, A. P. D. R., Torres, R. A. D., Sesma, F., & Coto, C. E.
- Affiliations
- Universidad de Buenos Aires (AR)
- Corresponding author
- Wachsman, Mónica B
- ORCID
- Castilla, Viviana
- Venue
- Antiviral Research
- Publisher
- Elsevier BV
- Published
- 2003-03
- Volume
- 58
- Issue
- 1
- Pages
- 17-24
- ISSN
- 0166-3542 (ISSN-L)
- OpenAlex
- W1996373772
- Cited by
- 161
- References
- 21
- Citations by year
- 2026: 5 · 2025: 9 · 2024: 12 · 2023: 8 · 2022: 17 · 2021: 17 · 2020: 10 · 2019: 4 · 2018: 9 · 2017: 6 · 2016: 4 · 2015: 3 · 2014: 9 · 2013: 6 · 2012: 5
- FWCI
- 2.32
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Antiviral Research (publishedVersion)
- PubMed (publishedVersion)
- CONICET Digital (CONICET) (submittedVersion, cc-by-nc-sa)
- Funders
- Consejo Nacional de Investigaciones Científicas y Técnicas
- Universidad de Buenos Aires (CONICET)
- Topics
- Health Sciences › Medicine › Epidemiology › Herpesvirus Infections and Treatments
- Physical Sciences › Environmental Science › Ecology › Bacteriophages and microbial interactions
- Life Sciences › Immunology and Microbiology › Immunology › interferon and immune responses
- Keywords
- bacteriocins, herpes simplex virus type 1, herpes simplex virus type 2, viral replication inhibition, glycoprotein D, late gene expression, syncytial fusion, viral protein synthesis, antiviral peptides, Enterococcus faecium
- MeSH terms
- Animals, Antiviral Agents, Bacteriocins, Chlorocebus aethiops, Cytotoxicity Tests, Immunologic, Glycoproteins, Humans, Vero Cells, Viral Proteins, Virus Replication, Giant Cells, Herpesvirus 2, Human, Herpesvirus 1, Human, Fluorescent Antibody Technique, Indirect
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