Helms, M.W.* ; Jahn-Hofmann, K.* ; Gnerlich, F.* ; Metz-Weidmann, C.* ; Braun, M.* ; Dietert, G.* ; Scherer, P.* ; Grandien, K.* ; Theilhaber, J.* ; Cao, H.* ; Wagenaar, T.R.* ; Schnurr, M.M.* ; Endres, S. ; Wiederschain, D.* ; Scheidler, S.* ; Rothenfußer, S. ; Brunner, B.* ; König, L.M.*
Utility of the RIG-I agonist triphosphate RNA for melanoma therapy.
Mol. Cancer Ther. 18, 2343-2356 (2019)
The pattern recognition receptor RIG-I plays an important role in the recognition of nonself RNA and antiviral immunity. RIG-I's natural ligand, triphosphate RNA (ppp-RNA), is proposed to be a valuable addition to the growing arsenal of cancer immunotherapy treatment options. In this study, we present comprehensive data validating the concept and utility of treatment with synthetic RIG-I agonist ppp-RNA for the therapy of human cancer, with melanoma as potential entry indication amenable to intratumoral treatment. Using mRNA expression data of human tumors, we demonstrate that RIG-I expression is closely correlated to cellular and cytokine immune activation in a wide variety of tumor types. Furthermore, we confirm susceptibility of cancer cells to ppp-RNA treatment in different cellular models of human melanoma, revealing unexpected heterogeneity between cell lines in their susceptibility to RNA agonist features, including sequence, secondary structures, and presence of triphosphate. Cellular responses to RNA treatment (induction of type I IFN, FasK, MHC-I, and cytotoxicity) were demonstrated to be RIG-I dependent using KO cells. Following ppp-RNA treatment of a mouse melanoma model, we observed significant local and systemic antitumor effects and survival benefits. These were associated with type I IFN response, tumor cell apoptosis, and innate and adaptive immune cell activation. For the first time, we demonstrate systemic presence of tumor antigen-specific Cris following treatment with RIG-I agonists. Despite potential challenges in the generation and formulation of potent RIG-I agonists, ppp-RNA or analogues thereof have the potential to play an important role for cancer treatment in the next wave of immunotherapy.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Double-stranded-rna; 5'-triphosphate Rna; Checkpoint Blockade; Interferon-alpha; Cancer-therapy; Cutting Edge; T-cells; Activation; Il-10; Interleukin-10
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2019
Prepublished im Jahr
HGF-Berichtsjahr
2019
ISSN (print) / ISBN
1535-7163
e-ISSN
1538-8514
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 18,
Heft: 12,
Seiten: 2343-2356
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
American Association for Cancer Research (AACR)
Verlagsort
615 Chestnut St, 17th Floor, Philadelphia, Pa 19106-4404 Usa
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
Institut(e)
Unit for Clinical Pharmacology (KKG-EKLiP)
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Immune Response and Infection
PSP-Element(e)
G-522100-001
Förderungen
Else Kroner-Fresenius-Stiftung
international doctoral program "i-Target: Immunotargeting of cancer" - the Elite Network of Bavaria
Deutsche Forschungsgemeinschaft
Copyright
Erfassungsdatum
2019-12-23