An unexpected role for RNA in the recognition of DNA by the innate immune system

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• Professor Veit Hornung, Institute for Clinical Chemistry and Pharmacology, University of Bonn, Germany
• Wednesday 05 May 2010, 16:30-17:30
• Lecture Theatre 1, Department of Veterinary Medicine.

If you have a question about this talk, please contact Suzy Blows.

A central function of our innate immune system is to sense microbial pathogens by the presence of their nucleic acid genomes or their transcriptional or replicative activity. In mammals, a receptor-based system is mainly responsible for the detection of these “non‐ self” nucleic acids. Tremendous progress has been made in the past years to identify host constituents that are required for this intricate task. With regard to the sensing of RNA genome based pathogens by our innate immune system, a picture is emerging that includes certain families of the toll-like receptor family (TLR3, TLR7 , TLR8) and the RIG - I like helicases (RIG-I, MDA5 and LGP2 ). Genetic loss of function studies implicate that the absence of these pathways can lead to a complete lack of recognition of certain RNA viruses. At the same time, intracellular DNA can also trigger potent innate immune responses, yet the players in this field are less clear. We and another group recently identified a role for RNA polymerase III in the conversion of AT-rich DNA into an RNA ligand that is sensed by the RIG ‐I pathway.

This talk is part of the Departmental Seminar Programme, Department of Veterinary Medicine series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Cambridge Immunology
• Cambridge Infectious Disease
• Cambridge Infectious Diseases
• Departmental Seminar Programme, Department of Veterinary Medicine
• Lecture Theatre 1, Department of Veterinary Medicine
• Vet School Seminars

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