
Keywords: S1P; sphingosine-1-phosphate; S1P2; sphingosine-1-phosphate receptor 2; APC; adenomatous polyposis coli; FAK; focal adhesion kinase; Lm; Listeria monocytogenes; Stm; Salmonella typhimurium; RSV; respiratory syncytial virus; GEF; guanine nucleotide exchang