Regulation of peripheral lymph node genesis by the tumor necrosis factor family member TRANCE

Citation
D. Kim et al., Regulation of peripheral lymph node genesis by the tumor necrosis factor family member TRANCE, J EXP MED, 192(10), 2000, pp. 1467-1478
Citations number
40
Categorie Soggetti
Medical Research General Topics
Journal title
JOURNAL OF EXPERIMENTAL MEDICINE
ISSN journal
00221007 → ACNP
Volume
192
Issue
10
Year of publication
2000
Pages
1467 - 1478
Database
ISI
SICI code
0022-1007(20001120)192:10<1467:ROPLNG>2.0.ZU;2-V
Abstract
Proper lymph node (LN) development requires tumor necrosis factor-related a ctivation-induced cytokine (TRANCE) expression Here we demonstrate that the defective LN development in TRANCE(-/-) mice con-elates with a significant reduction in lymphotoxin (LT)alpha beta (+)alpha (4)beta (+)(7)CD45(+)CD4( +)CD3(-) cells and their failure to form clusters in rudimentary mesenteric LNs. Transgenic TRANCE overexpression in TRANCE(-/-) mice results in selec tive restoration of this cell population into clusters, and results in full LN development. Transgenic TRANCE-mediated restoration of LN development r equires LT alpha beta expression on CD45(+) CD4+CD3- cells, as LNs could no t be induced in LT alpha (-/-) mice. LTa-/- mice also showed defects in the fate of CD45(+)CD4(+)CD3(-) cells similar to TRANCE(-/-) mice. Thus, we pr opose that both TRANCE and LT alpha beta regulate the colonization and clus ter formation by CD45(+) CD4(+)CD3(-) cells in developing LNs, the degree o f which appears to correlate with the state of LN organogenesis.