Emma Nolan1,2, Yibin Kang3,4 and Ilaria Malanchi1 1Tumour Host Interaction laboratory, The Francis Crick Institute, NW1 1AT London, United Kingdom 2Auckland Cancer Society Research Centre, University of Auckland, Auckland 1023, New Zealand 3Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA 4Ludwig Institute for Cancer Research Princeton Branch, Princeton, New Jersey 08544, USA Correspondence: emma.nolan{at}auckland.ac.nz; ykang{at}princeton.edu; Ilaria.Malanchi{at}crick.ac.uk