期刊
CELLS
卷 9, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/cells9040798
关键词
aenovirus; virotherapy; immunotherapy; AIM2; oncolytic virus; TILT-123; immunological cell death; DAMP; PAMP
类别
资金
- Jane and Aatos Erkko Foundation
- HUCH Research Funds (VTR)
- Sigrid Juselius Foundation
- Finnish Cancer Organizations
- University of Helsinki
- Novo Nordisk Foundation
- Paivikki and Sakari Sohlberg Foundation
- Finnish Society of Sciences and Letters
- TILT Biotherapeutics Ltd.
In order to break tumor resistance towards traditional treatments, we investigate the response of tumor and immune cells to a novel, cytokine-armed oncolytic adenovirus: Ad5/3-d24-E2F-hTNFa-IRES-hIL2 (also known as TILT-123 and OAd.TNFa-IL2). There are several pattern recognition receptors (PRR) that might mediate adenovirus-infection recognition. However, the role and specific effects of each PRR on the tumor microenvironment and treatment outcome remain unclear. Hence, the aim of this study was to investigate the effects of OAd.TNFa-IL2 infection on PRR-mediated danger- and pathogen-associated molecular pattern (DAMP and PAMP, respectively) signaling. In addition, we wanted to see which PRRs mediate an antitumor response and are therefore relevant for optimizing this virotherapy. We determined that OAd.TNFa-IL2 induced DAMP and PAMP release and consequent tumor microenvironment modulation. We show that the AIM2 inflammasome is activated during OAd.TNFa-IL2 virotherapy, thus creating an immunostimulatory antitumor microenvironment.
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