Skip to main content
Weiter zur Homepage der Europäischen Kommission (öffnet in neuem Fenster)
Deutsch de
CORDIS - Forschungsergebnisse der EU
CORDIS

Synthesis and Function of Non-Canonical RNA Fragments

Ziel

RNA lies at the core of the central dogma of molecular biology. It can both store genetic information and catalyse biochemical reactions. An often-overlooked property is that it contains next to A, G, C, and U, approximately 170 different non-canonical nucleosides. Transfer RNAs (tRNAs), as the central adaptor molecules for translating, harbour the highest number of these non-canonical nucleosides.
A recent surprising discovery revealed that tRNAs are cleaved by, in part, unknown RNases into smaller fragments, referred to as tsRNAs, which keep the non-canonical nucleosides. The functions of this entirely novel class of RNA molecules remain unknown.
Our first goal is to prepare phosphoramidite building blocks for non-canonical nucleosides and to synthesize tsRNAs. Although all available knowledge about tsRNAs has been obtained using synthetic RNAs that lack modified nucleosides, the data suggest that their primary function is to stimulate the immune system to enhance for example anticancer responses. Consequently, we plan to focus our synthetic efforts at evaluating the immunological effects of tsRNAs. This aim is further supported by the seminal discovery of Weissman and Kariko, who demonstrated that the presence of non-canonical nucleosides, such as pseudouridine, in mRNA profoundly modulates immune recognition.
The second goal of the study is to employ the synthetic tsRNAs, containing the respective embedded non-canonical nucleosides, to investigate how these fragments are processed by specific RNases. We will analyse how tsRNAs, or their secondary cleavage products, activate immune responses. Furthermore, we plan to identify and characterize the enzymes involved in these processing pathways. Finally, we will study tsRNAs derived from pathogenic bacteria following infection, focusing on those carrying pathogen-specific non-canonical nucleosides. We hypothesize that these structures will elicit particularly strong immune responses.

Wissenschaftliches Gebiet (EuroSciVoc)

Dieses Projekt wurde noch nicht bei EuroSciVoc klassifiziert.
Schlagen Sie die Wissenschaftsbereiche vor, die Ihrer Einschätzung nach besonders relevant sind, und helfen Sie uns, unseren Klassifizierungsdienst zu verbessern.

Schlüsselbegriffe

Programm/Programme

Thema/Themen

Finanzierungsplan

HORIZON-ERC - HORIZON ERC Grants

Alle im Rahmen dieses Finanzierungsinstruments finanzierten Projekte anzeigen

Aufforderung zur Vorschlagseinreichung

(öffnet in neuem Fenster) ERC-2025-ADG

Alle im Rahmen dieser Aufforderung zur Einreichung von Vorschlägen finanzierten Projekte anzeigen

Gastgebende Einrichtung

LUDWIG-MAXIMILIANS-UNIVERSITAET MUENCHEN
Netto-EU-Beitrag
€ 2 499 812,00
Adresse
GESCHWISTER SCHOLL PLATZ 1
80539 Planegg
Deutschland
Region
Bayern Oberbayern München, Kreisfreie Stadt
Aktivitätstyp
Higher or Secondary Education Establishments
Links
Gesamtkosten
Keine Daten

Begünstigte (1)