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[Adjuvant effect of dispersed fullerene C60 on the immune response to constructs harboring amino acid and nucleotide sequences of hepatitis C virus nonstructural NS5B protein].
- Source :
-
Voprosy virusologii [Vopr Virusol] 2023 Feb 07; Vol. 67 (6), pp. 516-526. Date of Electronic Publication: 2023 Feb 07. - Publication Year :
- 2023
-
Abstract
- Introduction: A vaccine against hepatitis C has not yet been developed. Recombinant proteins and plasmids encoding hepatitis C virus (HCV) proteins, the components of candidate vaccines, induce a weak immune response and require the use of adjuvants. The aim of the work was to study the adjuvant action of an aqueous solution of fullerene C60 during immunization of mice with HCV recombinant protein NS5B (rNS5B) that is an RNA-dependent RNA polymerase, or with NS5B-encoding pcNS5B plasmid.<br />Materials and Methods: An aqueous solution of dispersed fullerene (dnC60) was obtained by ultrafiltration. C57BL/6 mice were immunized with rNS5B subcutaneously, pcNS5B intramuscularly mixed with different doses of dnC60 three times, then the humoral and cellular response to HCV was evaluated.<br />Results: Mice immunization with rNS5B in a mixture with dnC60 at doses of 250 g/mouse significantly induced humoral response: a dose-dependent increase in IgG1 antibody titers was 720 times higher than in the absence of fullerene. There was no increase in the cellular response to rNS5B when administered with dnC60. The humoral response to DNA immunization was weak in mice of all groups receiving pcNS5B. The cellular response was suppressed when the plasmid was injected in a mixture with dnC60.<br />Conclusions: Dispersed fullerene dnC60 is a promising adjuvant for increasing the immunostimulating activity of weakly immunogenic proteins including surface and other HCV proteins, important for a protective response. Further research is needed to enhance the ability of dnC60 to boost the cellular immune response to the components of the candidate vaccine.
- Subjects :
- Mice
Animals
Hepacivirus
Base Sequence
Amino Acids genetics
Amino Acids metabolism
Amino Acids pharmacology
Mice, Inbred C57BL
Adjuvants, Immunologic genetics
Immunity, Cellular
Recombinant Proteins genetics
Mice, Inbred BALB C
Fullerenes pharmacology
Fullerenes metabolism
Hepatitis C
Vaccines, DNA genetics
Vaccines, DNA pharmacology
Viral Hepatitis Vaccines genetics
Viral Hepatitis Vaccines pharmacology
Subjects
Details
- Language :
- Russian
- ISSN :
- 2411-2097
- Volume :
- 67
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Voprosy virusologii
- Publication Type :
- Academic Journal
- Accession number :
- 37264841
- Full Text :
- https://doi.org/10.36233/0507-4088-149