Unknown

Dataset Information

0

Self-Assembling Peptide Epitopes as Novel Platform for Anticancer Vaccination.


ABSTRACT: The aim of the present study was to improve the immunogenicity of peptide epitope vaccines using novel nanocarriers based on self-assembling materials. Several studies demonstrated that peptide antigens in nanoparticulate form induce stronger immune responses than their soluble forms. However, several issues such as poor loading and risk of inducing T cell anergy due to premature release of antigenic epitopes have challenged the clinical success of such systems. In the present study, we developed two vaccine delivery systems by appending a self-assembling peptide (Ac-AAVVLLLW-COOH) or a thermosensitive polymer poly(N-isopropylacrylamide (pNIPAm) to the N-terminus of different peptide antigens (OVA250-264, HPV-E743-57) to generate self-assembling peptide epitopes (SAPEs). The obtained results showed that the SAPEs were able to form nanostructures with a diameter from 20 to 200 nm. The SAPEs adjuvanted with CpG induced and expanded antigen-specific CD8+ T cells in mice. Furthermore, tumor-bearing mice vaccinated with SAPEs harboring the HPV E743-57 peptide showed a delayed tumor growth and an increased survival compared to sham-treated mice. In conclusion, self-assembling peptide based systems increase the immunogenicity of peptide epitope vaccines and therefore warrants further development toward clinical use.

SUBMITTER: Rad-Malekshahi M 

PROVIDER: S-EPMC5415879 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature

altmetric image

Publications


The aim of the present study was to improve the immunogenicity of peptide epitope vaccines using novel nanocarriers based on self-assembling materials. Several studies demonstrated that peptide antigens in nanoparticulate form induce stronger immune responses than their soluble forms. However, several issues such as poor loading and risk of inducing T cell anergy due to premature release of antigenic epitopes have challenged the clinical success of such systems. In the present study, we develope  ...[more]

Similar Datasets

| S-EPMC6763337 | biostudies-literature
| S-EPMC8153661 | biostudies-literature
| S-EPMC7381722 | biostudies-literature
| S-EPMC9416097 | biostudies-literature
| S-EPMC5859181 | biostudies-literature
| S-EPMC7582005 | biostudies-literature
| S-EPMC6040178 | biostudies-literature
| S-EPMC7147077 | biostudies-literature
| S-EPMC3807245 | biostudies-literature
| S-EPMC6485442 | biostudies-literature