Erschienen in:
01.02.2020 | Original Article
Peptide vaccinations elicited strong immune responses that were reboosted by anti-PD1 therapy in a patient with myxofibrosarcoma
verfasst von:
Tomohide Tsukahara, Kazue Watanabe, Kenji Murata, Akari Takahashi, Emi Mizushima, Yuji Shibayama, Hidekazu Kameshima, Ryo Hatae, Yasuo Ohno, Rituko Kawahara, Aiko Murai, Munehide Nakatsugawa, Terufumi Kubo, Takayuki Kanaseki, Yoshihiko Hirohashi, Takeshi Terui, Hiroko Asanuma, Tadashi Hasegawa, Noriyuki Sato, Toshihiko Torigoe
Erschienen in:
Cancer Immunology, Immunotherapy
|
Ausgabe 2/2020
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Abstract
Peptide-based immunotherapy does not usually elicit strong immunological and clinical responses in patients with end-stage cancer, including sarcoma. Here we report a myxofibrosarcoma patient who showed a strong clinical response to peptide vaccinations and whose immune responses were reboosted by anti-PD1 therapy combined with peptide vaccinations. The 46-year-old man showed a strong response to the peptide vaccinations (papillomavirus binding factor peptide, survivin-2B peptide, incomplete Freund’s adjuvant, and polyethylene glycol-conjugated interferon-alpha 2a) and subsequent wide necrosis and massive infiltration of CD8+ T cells in a recurrent tumor. The patient’s immune responses weakened after surgical resection; however, they were reboosted following the administration of nivolumab combined with peptide vaccinations. Thus, anti-PD1 therapy combined with peptide vaccinations might be beneficial, as suggested by the observations in this sarcoma patient.