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Literature DB >> 16938836

Role of T and NK cells and IL7/IL7r interactions during neonatal maturation of lymph nodes.

Mark C Coles¹, Henrique Veiga-Fernandes, Katie E Foster, Trisha Norton, Stamatis N Pagakis, Ben Seddon, Dimitris Kioussis.

Abstract

Lymph node (LN) development depends on prenatal interactions occurring between LN inducer and LN organizer cells. We have distinguished defects in LN formation due to failure in embryonic development (aly/aly) from defects in postnatal maturation (Il2rgamma(-/-)Rag2(-/-)). Both mutant strains form normal primordial LNs with differing fate. In aly/aly mice, the LN primordium dissipates irreversibly late in gestation; in contrast, Il2rgamma(-/-)Rag2(-/-) LN anlage persists for a week after birth but disperses subsequently, a process reversible by neonatal transfer of WT IL7r(+) TCR(+) T or natural killer (NK) cells, suggesting a role for IL7/IL7r interactions. Thus, we reveal a unique stage of postnatal LN development during which mature lymphocytes and IL7/IL7r interactions may play an important role.

Entities: Chemical

Mesh：

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Year: 2006 PMID： 16938836 PMCID： PMC1569185 DOI： 10.1073/pnas.0604183103

Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205

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