First Author | Wagner N | Year | 1998 |
Journal | Eur J Immunol | Volume | 28 |
Issue | 11 | Pages | 3832-9 |
PubMed ID | 9842926 | Mgi Jnum | J:114211 |
Mgi Id | MGI:3688498 | Doi | 10.1002/(SICI)1521-4141(199811)28:11<3832::AID-IMMU3832>3.0.CO;2-J |
Citation | Wagner N, et al. (1998) L-selectin and beta7 integrin synergistically mediate lymphocyte migration to mesenteric lymph nodes. Eur J Immunol 28(11):3832-9 |
abstractText | Mesenteric lymph nodes (MLN) drain the gut where nutritive antigens and pathogens are encountered by lymphocytes of the gut-associated lymphoid tissue. We sought to determine how lymphocytes enter the MLN by studying mice double deficient for beta7 integrins and L-selectin. beta7/L-selectin double-deficient lymphocytes did not migrate into MLN. Most importantly, MLN formation was drastically impaired in beta7/L-selectin double-deficient mice. Lymphocyte numbers in MLN from beta7/L-selectin double-deficient mice were tenfold reduced compared to control mice. A high percentage of the few lymphocytes still detected in MLN from beta7/L-selectin double-deficient mice were CD44hi CD18hi, suggesting alternate migration pathways independent of L-selectin and beta7 integrin for these cells. We conclude that the combination of both molecules, L-selectin and beta7 integrin, is indispensable for MLN formation and that these molecules may mediate lymphocyte migration to MLN in a sequential and synergistical manner. |