• J. Exp. Med. · Nov 2000

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

    • D Kim, R E Mebius, J D MacMicking, S Jung, T Cupedo, Y Castellanos, J Rho, B R Wong, R Josien, N Kim, P D Rennert, and Y Choi.
    • Laboratory of Immunology, The Rockefeller University, New York, New York 10021, USA.
    • J. Exp. Med. 2000 Nov 20; 192 (10): 1467-78.

    AbstractProper lymph node (LN) development requires tumor necrosis factor-related activation-induced cytokine (TRANCE) expression. Here we demonstrate that the defective LN development in TRANCE(-/)- mice correlates with a significant reduction in lymphotoxin (LT)alphabeta(+)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 selective restoration of this cell population into clusters, and results in full LN development. Transgenic TRANCE-mediated restoration of LN development requires LTalphabeta expression on CD45(+) CD4(+)CD3(-) cells, as LNs could not be induced in LTalpha(-/)- mice. LTalpha(-/)- mice also showed defects in the fate of CD45(+)CD4(+)CD3(-) cells similar to TRANCE(-/)- mice. Thus, we propose that both TRANCE and LTalphabeta regulate the colonization and cluster formation by CD45(+) CD4(+)CD3(-) cells in developing LNs, the degree of which appears to correlate with the state of LN organogenesis.

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