First identification of Toll-like receptor-4 in avian brain: evolution of lipopolysaccharide recognition and inflammation-dependent responses

Abstract

In this work, we examine the effects of lipopolysaccharide (LPS) treatment on nerve cells of chick embryo used as a universal avian model. We demonstrate that LPS leads to a dramatic cell loss in primary cultures of both glia and neurons, isolated from chick embryos. Toxic effects appear to be mediated by the Toll-like receptor (TLR)-4 complex, expressed in both glial and neuronal cells, since after TLR-4 silencing by RNA interference experiments LPS-induced cytotoxicity was prevented. The role of nitric oxide in LPS-induced cell damage has also been investigated. These results demonstrate, for the first time in avian nerve cells, the surface expression of TLR-4 and its role as a pattern recognition receptor involved in LPS-induced cell responses in a similar manner to that observed in mammals.


Tutti gli autori

  • CIANCIULLI A.;PANARO M.A.;CALVELLO R.

Titolo volume/Rivista

Non Disponibile


Anno di pubblicazione

2011

ISSN

0892-3973

ISBN

Non Disponibile


Numero di citazioni Wos

5

Ultimo Aggiornamento Citazioni

Non Disponibile


Numero di citazioni Scopus

5

Ultimo Aggiornamento Citazioni

Non Disponibile


Settori ERC

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Codici ASJC

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