PMID- 37032609 OWN - NLM STAT- MEDLINE DCOM- 20230411 LR - 20230419 IS - 1473-2300 (Electronic) IS - 0300-0605 (Print) IS - 0300-0605 (Linking) VI - 51 IP - 4 DP - 2023 Apr TI - Correlation of signal transducer and activator of transcription-3 and beta-catenin expression in laryngeal squamous cell carcinoma. PG - 3000605231166228 LID - 10.1177/03000605231166228 [doi] LID - 03000605231166228 AB - OBJECTIVE: The specific roles of phosphorylated signal transducer and activator of transcription-3 (p-STAT3) and beta-Catenin in laryngeal squamous cell carcinoma (LSCC) remain unclear. METHODS: In this study, the correlations between p-STAT3, beta-Catenin, and clinicopathological characteristics were investigated using tissues and clinical data from 124 LSCC cases. Immunohistochemistry and immunofluorescence assays were used to examine p-STAT3 and beta-Catenin expression and localization in these samples. Kaplan-Meier survival and Cox regression analyses were performed to evaluate the prognostic significance of these proteins. LSCC cell lines were treated with a STAT3 inhibitor (dihydroartemisinin) or activator (interleukin-6) to explore the mechanism of p-STAT3 and beta-Catenin. RESULTS: There was an inverse correlation between p-STAT3 and beta-Catenin expression in the LSCC samples. Patients with high p-STAT3 and low beta-Catenin expression levels had significantly worse overall survival. Multivariate Cox regression analysis revealed that lymph node metastasis and beta-Catenin expression were both independently correlated with unfavorable overall survival. Cell treatment with the p-STAT3 inhibitor inhibited the nuclear accumulation of beta-Catenin, while p-STAT3 activator treatment could promote beta-Catenin translocation to the nucleus. CONCLUSION: Overall, our data indicate that p-STAT3 expression is associated with LSCC by promoting beta-Catenin degradation. FAU - Sun, Yajing AU - Sun Y AD - Graduate School of Hebei Medical University, Shijiazhuang, Hebei Province, China. FAU - Lu, Xiuying AU - Lu X AD - Department of Otolaryngology Head and Neck Surgery, Bethune International Peace Hospital, Shijiazhuang, Hebei Province, China. FAU - Li, Hui AU - Li H AD - Department of Pathology, Bethune International Peace Hospital, Shijiazhuang, Hebei Province, China. FAU - Li, Xiaoming AU - Li X AUID- ORCID: 0000-0002-0931-727X AD - Graduate School of Hebei Medical University, Shijiazhuang, Hebei Province, China. AD - Department of Otolaryngology Head and Neck Surgery, Bethune International Peace Hospital, Shijiazhuang, Hebei Province, China. LA - eng PT - Journal Article PL - England TA - J Int Med Res JT - The Journal of international medical research JID - 0346411 RN - 0 (beta Catenin) RN - 0 (Biomarkers, Tumor) SB - IM MH - Humans MH - Squamous Cell Carcinoma of Head and Neck MH - *Laryngeal Neoplasms/genetics MH - *Carcinoma, Squamous Cell/metabolism MH - beta Catenin/genetics/metabolism MH - Prognosis MH - *Head and Neck Neoplasms MH - Biomarkers, Tumor/analysis PMC - PMC10107985 OTO - NOTNLM OT - STAT3 OT - biomarker OT - epithelial-mesenchymal transition OT - laryngeal squamous cell carcinoma OT - prognostic indicator OT - beta-Catenin COIS- The authors declare that there is no conflict of interest. EDAT- 2023/04/11 06:00 MHDA- 2023/04/11 06:42 PMCR- 2023/04/09 CRDT- 2023/04/10 03:03 PHST- 2023/04/11 06:42 [medline] PHST- 2023/04/10 03:03 [entrez] PHST- 2023/04/11 06:00 [pubmed] PHST- 2023/04/09 00:00 [pmc-release] AID - 10.1177_03000605231166228 [pii] AID - 10.1177/03000605231166228 [doi] PST - ppublish SO - J Int Med Res. 2023 Apr;51(4):3000605231166228. doi: 10.1177/03000605231166228.