Neutrophils Forming NETs (IMAGE) Cold Spring Harbor Laboratory Caption Part of the body's immune system, neutrophils detect bacteria and can expel their DNA (see arrows) to attack the bacteria with a gauzy web of DNA laced with toxic enzymes, called a NET. Credit Egeblad lab/CSHL Usage Restrictions Attribution needed License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.