TNF-alpha signaling is not required for in vivo transcriptional reactivation of latent murine cytomegalovirus.

Abstract:

BACKGROUND:Reactivation of cytomegalovirus (CMV) is frequently observed in recipients of solid organs and bone marrow transplants and is associated with increased risk of acute and chronic allograft rejection, opportunistic infection, graft failure, and patient mortality. The molecular mechanisms by which reactivation occurs are not well understood. Previous studies have suggested that tumor necrosis factor (TNF)-alpha, which is induced by allogeneic transplantation, may have a role in reactivation of CMV through activation of nuclear factor kappa-light-chain-enhancer of activated B cells and subsequent transcriptional reactivation of immediate early (ie) gene expression. METHODS AND RESULTS:We have tested the role of TNF-alpha in the reactivation of CMV directly by testing whether TNF-alpha is required to initiate transcription of ie gene expression in a murine model of allogeneic transplantation of kidneys latently infected with mouse CMV. CONCLUSIONS:Our studies show that although TNF-alpha seems to be sufficient, it is not required for initiating transcription of ie gene expression in this model, suggesting that both TNF-alpha-dependent and -independent pathways play an important role in the reactivation of latent CMV infection.

journal_name

Transplantation

journal_title

Transplantation

authors

Zhang Z,Li Z,Yan S,Wang X,Abecassis M

doi

10.1097/TP.0b013e3181b242a7

subject

Has Abstract

pub_date

2009-09-15 00:00:00

pages

640-5

issue

5

eissn

0041-1337

issn

1534-6080

pii

00007890-200909150-00007

journal_volume

88

pub_type

杂志文章
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    journal_title:Transplantation

    pub_type: 临床试验,杂志文章,多中心研究,随机对照试验

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    authors: Kahan BD,Julian BA,Pescovitz MD,Vanrenterghem Y,Neylan J

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    pub_type: 杂志文章

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    pub_type: 临床试验,杂志文章,随机对照试验

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    authors: Millis JM,Melinek J,Csete M,Imagawa DK,Olthoff KM,Neelankanta G,Braunfeld MY,Sopher MJ,Chan SM,Pregler JL,Yersiz H,Busuttil AA,Shackleton CR,Shaked A,Busuttil RW

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    authors: Tydén G,Brattström C,Lundgren G,Ostman J,Gunnarsson R,Groth CG

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    pub_type: 杂志文章

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    pub_type: 杂志文章,评审

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