19 October 2016
Vol 8, Issue 361

About The Cover

Cover image expansion

ONLINE COVER To NET or Not to NET. This image depicts two neutrophils, one of which is forming a DNA mesh called a neutrophil extracellular trap (NET) after being cultured together with cancer cells. Although NETs are usually generated in response to infection, Park et al. found that their production can also be stimulated by cancer cells, promoting metastasis. [CREDIT: L. MAIORINO AND S. HEARN/COLD SPRING HARBOR LABORATORY]