Personalized cancer vaccine strategy elicits polyfunctional T cells and demonstrates clinical benefits in ovarian cancer.

Personalized cancer vaccine strategy elicits polyfunctional T cells and demonstrates clinical benefits in ovarian cancer.
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DOI:
10.1038/s41541-021-00297-5
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发表时间:
2021-03-15
期刊:
影响因子:
9.2
通讯作者:
Kandalaft LE
Kandalaft LE
中科院分区:
医学1区
文献类型:
--
作者:
Tanyi JL;Chiang CL;Chiffelle J;Thierry AC;Baumgartener P;Huber F;Goepfert C;Tarussio D;Tissot S;Torigian DA;Nisenbaum HL;Stevenson BJ;Guiren HF;Ahmed R;Huguenin-Bergenat AL;Zsiros E;Bassani-Sternberg M;Mick R;Powell DJ Jr;Coukos G;Harari A;Kandalaft LE

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T cells are important for controlling ovarian cancer (OC). We previously demonstrated that combinatorial use of a personalized whole-tumor lysate-pulsed dendritic cell vaccine (OCDC), bevacizumab (Bev), and cyclophosphamide (Cy) elicited neoantigen-specific T cells and prolonged OC survival. Here, we hypothesize that adding acetylsalicylic acid (ASA) and low-dose interleukin (IL)-2 would increase the vaccine efficacy in a recurrent advanced OC phase I trial (NCT01132014). By adding ASA and low-dose IL-2 to the OCDC-Bev-Cy combinatorial regimen, we elicited vaccine-specific T-cell responses that positively correlated with patients’ prolonged time-to-progression and overall survival. In the ID8 ovarian model, animals receiving the same regimen showed prolonged survival, increased tumor-infiltrating perforin-producing T cells, increased neoantigen-specific CD8+ T cells, and reduced endothelial Fas ligand expression and tumor-infiltrating T-regulatory cells. This combinatorial strategy was efficacious and also highlighted the predictive value of the ID8 model for future ovarian trial development.
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