
Keywords: dLNs, draining lymph nodes; LVs, lymphatic vessels; LNs, lymph nodes; DCs, dendritic cells; LEVs, lymphatic endothelial vessels; FRCs, fibroblastic reticular cells; S1P, sphingosine-1-phosphate; S1PRs, S1P receptors; LECs, lymphatic endothelial cells; Sem