Identification of cytotoxic T lymphocyte epitopes in dengue virus serotype 1
- PMID: 25777343
- DOI: 10.1002/jmv.24167
Identification of cytotoxic T lymphocyte epitopes in dengue virus serotype 1
Abstract
Dengue virus (DENV) has a serious and growing impact on global health and the exact role of DENV-specific CD8(+) T-cells in DENV infection is still uncertain. In the present study, SYFPEITHI algorithm was used to screen the amino acid sequence of Dengue virus serotype 1 (DENV-1) for potential epitopes, and seven putative HLA-A*1101-restricted and five putative HLA-A*2402-restricted epitopes conserved in hundreds of DENV-1 strains were synthesized. The binding affinity of these epitope candidates to corresponding HLA molecules was evaluated using competitive peptide-binding assay. The immunogenicity and specificity of peptides were further tested in HLA-A*1101 transgenic mice, HLA-A*2402 transgenic mice and peripheral blood mononuclear cells (PBMCs) of patients infected with DENV-1. Percentage inhibition (PI) values calculated in competitive peptide-binding assay showed that six peptides (E39-47 PTLDIELLK, NS5(505-513) GVEGEGLHK, NS2b(15-23) SILLSSLLK, NS5(561-569) ALLATSIFK, NS3(99-107) AVEPGKNPK, and NS4b(159-167) VVYDAKFEK) could bind to HLA-A*1101 molecule with high affinity and five peptides (NS3472-480 QYIYMGQPL, NS4a40-48 AYRHAMEEL, NS5(880-888) DYMTSMKRF, NS3(548-556) SYKVASEGF, and NS3(22-30) IYRILQRGL) have a high affinity for HLA-A*2402 molecule. Enzyme-linked immunospot (ELISPOT) results indicated that these high-affinity peptides were recognized by splenocytes of DENV-1-infected transgenic mice and high-affinity peptide-immunized transgenic mice displayed high levels of peptide-specific IFN-γ-secreting cells. In addition, both peptide-pulsed splenocytes and DENV-1-infected splenic monocytes were efficiently killed by these peptide-specific cytotoxic T lymphocytes. Finally, except NS2b(15-23), 10 high-affinity peptides were recognized by PBMCs of patients infected with DENV-1. These identified epitopes would contribute to the understanding of the function of DENV-specific CD8(+) T-cells.
Keywords: cytotoxic T lymphocyte; dengue virus; epitope.
© 2015 Wiley Periodicals, Inc.
Similar articles
-
Identification of conserved and HLA-A*2402-restricted epitopes in Dengue virus serotype 2.Virus Res. 2015 Jan 22;196:5-12. doi: 10.1016/j.virusres.2014.10.022. Epub 2014 Nov 1. Virus Res. 2015. PMID: 25449574
-
Identification of a dengue virus-specific HLA-A*0201-restricted CD8+ T cell epitope.J Med Virol. 2010 Apr;82(4):642-8. doi: 10.1002/jmv.21736. J Med Virol. 2010. PMID: 20166182
-
Induction of multiple cytotoxic T lymphocyte responses in mice by a multiepitope DNA vaccine against dengue virus serotype 1.Microbiol Immunol. 2016 Dec;60(12):835-845. doi: 10.1111/1348-0421.12457. Microbiol Immunol. 2016. PMID: 27981613
-
Identification and selection of immunodominant B and T cell epitopes for dengue multi-epitope-based vaccine.Med Microbiol Immunol. 2021 Feb;210(1):1-11. doi: 10.1007/s00430-021-00700-x. Epub 2021 Jan 30. Med Microbiol Immunol. 2021. PMID: 33515283 Review.
-
Dengue fever virus and Japanese encephalitis virus synthetic peptides, with motifs to fit HLA class I haplotypes prevalent in human populations in endemic regions, can be used for application to skin Langerhans cells to prime antiviral CD8+ cytotoxic T cells (CTLs)--a novel approach to the protection of humans.Virus Genes. 1994 Sep;9(1):33-45. doi: 10.1007/BF01703433. Virus Genes. 1994. PMID: 7871759 Review.
Cited by
-
How Can Elispot Add Information to Improve Knowledge on Tropical Diseases?Cells. 2017 Sep 29;6(4):31. doi: 10.3390/cells6040031. Cells. 2017. PMID: 28961208 Free PMC article. Review.
-
Regional Variation of the CD4 and CD8 T Cell Epitopes Conserved in Circulating Dengue Viruses and Shared with Potential Vaccine Candidates.Viruses. 2024 May 5;16(5):730. doi: 10.3390/v16050730. Viruses. 2024. PMID: 38793612 Free PMC article.
-
Long-Term Protection Elicited by a DNA Vaccine Candidate Expressing the prM-E Antigen of Dengue Virus Serotype 3 in Mice.Front Cell Infect Microbiol. 2020 Mar 17;10:87. doi: 10.3389/fcimb.2020.00087. eCollection 2020. Front Cell Infect Microbiol. 2020. PMID: 32257963 Free PMC article.
-
Genome-Wide Analysis to Identify HLA Factors Potentially Associated With Severe Dengue.Front Immunol. 2018 Apr 10;9:728. doi: 10.3389/fimmu.2018.00728. eCollection 2018. Front Immunol. 2018. PMID: 29692780 Free PMC article.
-
Discovery of T-cell Driven Subunit Vaccines from Zika Virus Genome: An Immunoinformatics Approach.Interdiscip Sci. 2017 Dec;9(4):468-477. doi: 10.1007/s12539-017-0238-3. Epub 2017 Nov 1. Interdiscip Sci. 2017. PMID: 29094318 Free PMC article.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Medical
Molecular Biology Databases
Research Materials
Miscellaneous