Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2000-1-6
pubmed:abstractText
Inactivation of genes encoding members of TNF and TNF receptor families reveal their divergent roles in the formation and function of secondary lymphoid organs. Most lymphotoxin alpha (ltalpha)- and all lymphotoxin beta receptor (ltbetar)-deficient mice are completely devoid of lymph nodes (LNs); however, most lymphotoxin beta (ltbeta)-deficient mice develop mesenteric LNs. Tnf- and tnfrp55-deficient mice develop a complete set of LNs, while ltbeta/tnfrp55 double-deficient mice lack all LNs, demonstrating cooperation between LTbeta and TNFRp55 in LN development. Now we report that ltbeta/tnf double-deficient mice develop the same set of mucosal LNs as do ltbeta-deficient mice, suggesting that ligands other than TNF signal through TNFRp55 during LN development. These LNs retain distinct T and B cells areas; however, they lack follicular dendritic cell networks. Structures resembling germinal centers can be found in the LNs from immunized ltbeta-deficient mice but not in ltbeta/tnf double-deficient mice. Additionally, stromal components of the spleen and LNs appear to be more severely disturbed in ltbeta/tnf double-deficient mice as compared with ltbeta-deficient mice. We conclude that LTbeta and TNF cooperate in the establishment of the correct microarchitecture of lymphoid organs.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
163
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6575-80
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:10586051-Animals, pubmed-meshheading:10586051-Cell Differentiation, pubmed-meshheading:10586051-Crosses, Genetic, pubmed-meshheading:10586051-Drug Synergism, pubmed-meshheading:10586051-Embryonic and Fetal Development, pubmed-meshheading:10586051-Lymph Nodes, pubmed-meshheading:10586051-Lymphoid Tissue, pubmed-meshheading:10586051-Lymphotoxin-alpha, pubmed-meshheading:10586051-Lymphotoxin-beta, pubmed-meshheading:10586051-Male, pubmed-meshheading:10586051-Membrane Proteins, pubmed-meshheading:10586051-Mice, pubmed-meshheading:10586051-Mice, Inbred C57BL, pubmed-meshheading:10586051-Mice, Mutant Strains, pubmed-meshheading:10586051-Mice, Transgenic, pubmed-meshheading:10586051-Signal Transduction, pubmed-meshheading:10586051-Spleen, pubmed-meshheading:10586051-Tumor Necrosis Factor-alpha
pubmed:year
1999
pubmed:articleTitle
TNF and lymphotoxin beta cooperate in the maintenance of secondary lymphoid tissue microarchitecture but not in the development of lymph nodes.
pubmed:affiliation
Laboratory of Molecular Immunology, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow State University, Russia. kupras@imb.ac.ru
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't