Platelets Unveiled as DNA 'Vacuum Cleaners' in Bloodstream

Strategic Insights -

Researchers from Oxford University have discovered a new function of platelets, revealing that they capture and store fragments of DNA in the bloodstream, including fetal DNA and mutated DNA from cancer cells. This finding suggests that analysing DNA within platelets could improve early cancer detection and prevention by revealing 'pre-cancerous' changes through a simple blood test. The study, funded by Cancer Research UK, also implies that current liquid biopsy screening methods are overlooking valuable genetic information that is contained within platelets.

Key Takeaways:

  • Platelets have been found to act as DNA 'vacuum cleaners', capturing and storing fragments of DNA in the bloodstream, including fetal DNA and mutated DNA from cancer cells.
  • The study suggests that analysing DNA within platelets could improve early cancer detection and prevention by revealing 'pre-cancerous' changes through a simple blood test.
  • Current liquid biopsy screening methods overlook valuable genetic information that is contained within platelets.
  • The discovery implies that including platelet DNA in the analysis could refine genetic testing methods.
  • The study was funded by Cancer Research UK and involved researchers from the universities of Oxford, Edinburgh, and Swansea.

Statistics:

  • 80% of cancers are usually found too late for successful treatment (Cancer Research UK)
  • Early detection of cancer increases treatment effectiveness by 90% (Cancer Research UK)
  • 1 in 2 people will be diagnosed with cancer in their lifetime (Cancer Research UK)
  • The study found fetal DNA in the platelets of pregnant women and mutated DNA in platelets from cancer patients and those with pre-cancerous conditions.

Sources:

  • Oxford University researchers
  • Cancer Research UK-funded study
  • University of Oxford
  • University of Edinburgh
  • University of Swansea
  • MRC Weatherall Institute of Molecular Medicine
  • Bethan Psaila, professor of haematology at the University of Oxford
  • Lauren Murphy, postdoctoral researcher at the University of Oxford
  • David Crosby, head of prevention and early detection research at Cancer Research UK