Cowpea Mosaic Virus (CPMV)-Based Cancer Testis Antigen
NY-ESO‑1 Vaccine Elicits an Antigen-Specific Cytotoxic T Cell
Response
Posted on 2020-06-25 - 17:06
Cancer vaccines are promising adjuvant
immunotherapies that can
stimulate the immune system to recognize tumor-associated antigens
and eliminate the residual or recurring disease. The aberrant and
restricted expression of highly immunogenic cancer testis antigen
NY-ESO-1 in several malignancies, including triple-negative breast
cancer, melanoma, myelomas, and ovarian cancer, makes NY-ESO-1 an
attractive antigenic target for cancer vaccines. This study describes
a NY-ESO-1 vaccine based on a bio-inspired nanomaterial platform technology,
specifically a plant virus nanoparticle. The 30 nm icosahedral plant
virus cowpea mosaic virus (CPMV) displaying multiple copies of human
HLA-A2 restricted peptide antigen NY-ESO-1157–165 exhibited enhanced uptake and activation of antigen-presenting cells
and stimulated a potent CD8+ T cell response in transgenic
human HLA-A2 expressing mice. CD8+ T cells from immunized
mice exhibited antigen-specific proliferation and cancer cell cytotoxicity,
highlighting the potential application of a CPMV-NY-ESO-1 vaccine
against NY-ESO-1+ malignancies.
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Patel, Bindi
K.; Wang, Chao; Lorens, Braulio; Levine, Alan D.; Steinmetz, Nicole F.; Shukla, Sourabh (2020). Cowpea Mosaic Virus (CPMV)-Based Cancer Testis Antigen
NY-ESO‑1 Vaccine Elicits an Antigen-Specific Cytotoxic T Cell
Response. ACS Publications. Collection. https://doi.org/10.1021/acsabm.0c00259