Personalized Cancer Vaccine Platform for Clinically Relevant Oncolytic Enveloped Viruses

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Ylösmäki , E , Malorzo , C , Capasso , C , Honkasalo , O , Fusciello , M , Martins , B , Ylösmäki , L , Louna , A , Feola , S , Paavilainen , H , Peltonen , K , Hukkanen , V , Viitala , T & Cerullo , V 2018 , ' Personalized Cancer Vaccine Platform for Clinically Relevant Oncolytic Enveloped Viruses ' , Molecular therapy , vol. 26 , no. 9 , pp. 2315-2325 .

Title: Personalized Cancer Vaccine Platform for Clinically Relevant Oncolytic Enveloped Viruses
Author: Ylösmäki, Erkko; Malorzo, Cristina; Capasso, Cristian; Honkasalo, Oona; Fusciello, Manlio; Martins, Beatriz; Ylösmäki, Leena; Louna, Antti; Feola, Sara; Paavilainen, Henrik; Peltonen, Karita; Hukkanen, Veijo; Viitala, Tapani; Cerullo, Vincenzo
Contributor organization: Faculty of Pharmacy
ImmunoViroTherapy Lab
Drug Research Program
Division of Pharmaceutical Biosciences
Pharmaceutical biophysics group
Date: 2018-09-05
Language: eng
Number of pages: 11
Belongs to series: Molecular therapy
ISSN: 1525-0016
Abstract: The approval of the first oncolytic virus for the treatment of metastatic melanoma and the compiling evidence that the use of oncolytic viruses can enhance cancer immunotherapies targeted against various immune checkpoint proteins has attracted great interest in the field of cancer virotherapy. We have developed a novel platform for clinically relevant enveloped viruses that can direct the virus-induced immune response against tumor antigens. By physically attaching tumor- specific peptides onto the viral envelope of vaccinia virus and herpes simplex virus 1 (HSV-1), we were able to induce a strong T cell-specific immune response toward these tumor antigens. These therapeutic peptides could be attached onto the viral envelope by using a cell-penetrating peptide sequence derived from human immunodeficiency virus Tat N-terminally fused to the tumor-specific peptides or, alternatively, therapeutic peptides could be conjugated with cholesterol for the attachment of the peptides onto the viral envelope. We used two mouse models of melanoma termed B16. OVA and B16-F10 for testing the efficacy of OVA SIINFEKL-peptide-coated viruses and gp100-Trp2-peptide-coated viruses, respectively, and show that by coating the viral envelope with therapeutic peptides, the anti-tumor immunity and the number of tumor-specific CD8(+) T cells in the tumor microenvironment can be significantly enhanced.
3122 Cancers
317 Pharmacy
3111 Biomedicine
1183 Plant biology, microbiology, virology
Peer reviewed: Yes
Rights: cc_by_nc_nd
Usage restriction: openAccess
Self-archived version: publishedVersion

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