Journal
ORAL DISEASES
Volume 26, Issue 6, Pages 1149-1156Publisher
WILEY
DOI: 10.1111/odi.13351
Keywords
head and neck squamous cell carcinoma; partial epithelial-to-mesenchymal transition; prognosis
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Funding
- Ministry of Education, Science, and Culture of Japan, KAKENHI [19H03853]
- Grants-in-Aid for Scientific Research [19H03853] Funding Source: KAKEN
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Objective Recent studies have revealed that the ability of cancer cells to undergo intermediate state of epithelial-to-mesenchymal transition (EMT), partial EMT (p-EMT), poses a higher metastatic risk rather than complete EMT. Here, we examined the prognostic value of p-EMT-related genes in head and neck squamous cell carcinoma (HNSCC) by bioinformatic approaches. Materials and methods We used RNA-seq data of 519 primary HNSCC cases obtained from TCGA database. We compared the expression of p-EMT-related genes in HNSCC tissues with normal tissues. We evaluated the prognostic value of p-EMT-related genes in HNSCC cases by log-rank test. We examined the expression of p-EMT-, EMT-, and epithelial differentiation-related genes by qPCR. Results Among p-EMT-related genes that were highly expressed in HNSCC cases, high expression of SERPINE1, ITGA5, TGFBI, P4HA2, CDH13, and LAMC2 was significantly correlated with poor survival of HNSCC patients. By gene expression pattern, HNSCC cell lines were classified into three groups: epithelial phenotype, EMT phenotype, and p-EMT phenotype. Conclusions Our findings suggest that p-EMT program may be involved in poor prognosis of HNSCC. SERPINE1, ITGA5, TGFBI, P4HA2, CDH13, and LAMC2 can be used for a prognostic marker. Moreover, HNSCC cells with p-EMT phenotype can be a useful model for investigating a nature of p-EMT.
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