Lipopolysaccharides Invade the Endosome (IMAGE) University of Connecticut Caption Lipopolysaccharides (green) from gram-negative bacteria are delivered into the endosomal (red) and cytosolic compartments of human macrophages by bacterial vesicles. Credit Vijay Rathinam/UConn Health Usage Restrictions Image may only be used with the appropriate credit (listed here on EurekAlert!). 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.