TLR4 down-regulation identifies high risk HPV infection and integration in head and neck squamous cell carcinomas

Giuseppina Campisi, Vito Rodolico, Francesco Merolla, Silvia Lepore, Massimo Mascolo, Gabriella Aquino, Stefania Trino, Pantaleo Bufo, Giuseppe M. Russo, Ilaria Laurenzana, Iole Natalicchio, Rosalia Leonardi, Giuseppe Colella, Angela Santoro, Lorenzo Lo Muzio, Lorenzo Lo Muzio, Mirella Pace, Gennaro Ilardi, Giuseppe Pannone, Corrado RubiniPaolo Bucci, Mirella Pace, Eduardo Bucci, Renato Franco

Risultato della ricerca: Articlepeer review

6 Citazioni (Scopus)

Abstract

TLRs are main actors of the innate immune response against HPV. There are very few studies on the role of TLRs mediated HPV clearance in Head and Neck oncology. Our aim was to evaluate whether TLR4 expression identifies HPV infection and/or HR-HPV integration status in oral and oropharyngeal cancers. By immunohistochemistry we assessed TLR4 levels in OSCC/OPSCC. To detect viral integration or episomic status In situ hybridization for HPV-DNA and Pyro-sequencing techniques have been performed. The relationship between TLR4 expression with HPV infection status has been investigated. ISH HPV positive samples have reported lower levels of TLR4 intensity than negative samples (p = .002). There was no statistical correlation between TLR4 intensity and PCR HPV results (p more than 0.0.5). Point-biserial correlation coefficient revealed significant association between TLR4 expression and HR-HPV integration status (p = .0001) and between TLR4 expression index and HR-HPV infection (p = .001). These data have shown that TLR4 down-regulation is strongly associated to both HPV-16 infection and its integration into the host DNA.
Lingua originaleEnglish
pagine (da-a)15-28
Numero di pagine14
RivistaFRONTIERS IN BIOSCIENCE
Volume8
Stato di pubblicazionePublished - 2016

All Science Journal Classification (ASJC) codes

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