A Recombinant RBD-Based Phage Vaccine Report : A Solution to the Prevention of New Diseases?

The safety, inherent immunogenicity, stability, and low-cost production of bacteriophages make them an ideal platform for vaccine development. Most vaccination strategies against COVID-19 have targeted the spike protein of SARS-CoV-2 to generate neutralizing antibodies. P1, a truncated RBD-derived spike protein, has been shown to induce virus-neutralizing antibodies in preclinical studies. In this study, we first investigated whether recombinant phages displaying P1 on the M13 major protein could immunize mice against COVID-19, and second, whether inoculation with 50 µg of purified P1 in addition to the recombinant phages would stimulate the immune systems of the animals. The results showed that the mice that received recombinant phages were immunized against the phage particles, but did not have anti-P1 IgG. In contrast, compared with the negative control, the group that received a combination of P1 protein and recombinant phage was immunized against the P1 protein. In both groups, CD4+ and CD8+ T cells appeared in the lung tissue. These results suggest that the number of antigens on the phage body plays a crucial role in stimulating the immune system against the bacteriophage, although it is immunogenic enough to function as a phage vaccine.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Vaccines - 11(2023), 4 vom: 13. Apr.

Sprache:

Englisch

Beteiligte Personen:

Salehi, Zahra [VerfasserIn]
Rasaee, Mohammad Javad [VerfasserIn]

Links:

Volltext

Themen:

COVID-19
Journal Article
Phage vaccine
SARS-CoV-2
Spike protein

Anmerkungen:

Date Revised 01.05.2023

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/vaccines11040833

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM356163199