PMID: 20120862Feb 4, 2010Paper

Study on the correlation between EGFR-STAT3 signal pathway and laryngeal papilloma

Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery
Xinhua Wang, Jingwu Sun

Abstract

To explore the relationship between the expression of EGFR and STAT3 in human laryngeal papilloma and its biological behavior. Reverse transcription polymerase chain reaction(RT-PCR), immunohistochemical staining and Western blot were used to evaluate the mRNA and protein expression of EGFR and STAT3 (p-STAT3) in 42 laryngeal papilloma tissues and 15 samples of normal laryngeal tissue, and the relationship between the protein expression of them and clinic pathological parameters was also analyzed. The mRNA expression levels of EGFR and STAT3 in laryngeal papilloma tissue were significantly higher than that in normal laryngeal tissue (P < 0.05, P < 0.01). Protein positive expression of EGFR and p-STAT3 were also detected in a significantly greater proportion of laryngeal papilloma than normal laryngeal tissue by immunohistochemistry and western blot (P < 0.01, P < 0.05). There was relationship between EGFR and p-STAT3 overexpression in laryngeal papilloma (P < 0.05). The expression p-STAT3 was correlated with the recurrence and canceration of laryngeal papilloma (P < 0.05). The EGFR-STAT3 signal transduction pathway may be involved in the pathogenesis of laryngeal papilloma,, and the persistent activation of STAT3 gene plays an ...Continue Reading

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