U. Sibelius et al., LISTERIOLYSIN IS A POTENT INDUCER OF THE PHOSPHATIDYLINOSITOL RESPONSE AND LIPID MEDIATOR GENERATION IN HUMAN ENDOTHELIAL-CELLS, Infection and immunity, 64(2), 1996, pp. 674-676
The impact of Listeria monocytogenes listeriolysin O (LLO) secretion o
n phosphoinositide metabolism and mediator (platelet-activating factor
and prostaglandin I-2) generation was investigated in human umbilical
vein endothelial cells. Wild-type L. monocytogenes, purified LLO, and
an L. innocua strain engineered to secrete LLO all elicited a strong
response, whereas mutant strains defective in LLO production were inef
fective. Thus, human umbilical vein endothelial cell stimulation by li
steriae is linked to production of LLO.