Publication highlights

Researchers at the Crick and UCL Queen Square Institute of Neurology have shown that alpha-synuclein, the protein that aggregates in Parkinson’s disease, can trigger widespread RNA editing in astrocytes as part of an anti-viral innate immune response. They used human stem cells to generate astrocytes, the most abundant cell type in the brain. Using molecular biology, genomic and computational approaches, they showed that forms of alpha-synuclein trigger the same innate immune pathways in astrocytes that viruses do. One consequence of this response was a marked increase in RNA editing, with extensive changes throughout the genetic code as it is converted into proteins.

Asymptomatic PCR testing for NHS staff, provided by the Francis Crick Institute and University College London Hospitals (UCLH) NHS Foundation Trust and its diagnostic partner Health Services Laboratories, effectively detected COVID-19 infections that would have otherwise been missed. The researchers examined test positivity rates across different NHS trusts, observing that from the 680,000 tests run through the testing pipeline, 40.8% of all positive tests were from UCLH and The Royal Marsden NHS Foundation Trust. This high incidence suggests a significant number of additional infections were being detected by this strategy.