Toll-like receptor 3 expression inhibits cell invasion and migration and predicts a favorable prognosis in neuroblastoma

Wen Ming Hsu, Chao Cheng Huang, Pei Yi Wu, Hsinyu Lee, Min Chuan Huang, Ming Hong Tai, Jiin Haur Chuang*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

22 Scopus citations

Abstract

To evaluate the clinical significance of TLR3 expression on neuroblastomas, we performed immunohistochemical study on archival tissues and in vitro studies on neuroblastoma cell lines. The results showed that positive TLR3 expression was associated with favorable histology and prognosis. Activation of TLR3 by polyinosinic:polycytidylic acid [poly(I:C)] treatment is effective to suppress cell migration and invasion and to decrease organized assembly of F-actin and filopodia formation, in TLR3-expressing SK-N-AS cells, which could be reversed by TLR3-targeting siRNA treatment. TLR3 agonist poly(I:C) promotes GAP-43 expression also in SK-N-AS cells only. Taken together, TLR3 could serve to predict favorable behavior in neuroblastomas.

Original languageEnglish
Pages (from-to)338-346
Number of pages9
JournalCancer Letters
Volume336
Issue number2
DOIs
StatePublished - 19 08 2013

Keywords

  • Migration
  • Neuroblastoma
  • Poly(I:C)
  • Prognosis
  • Toll-like receptor 3

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