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MicroRNA expression patterns in oral squamous cell carcinoma: hsa‐mir‐99b‐3p and hsa‐mir‐100‐5p as novel prognostic markers for oral cancer
Author(s) -
Jakob Mark,
Mattes Lena M.,
Küffer Stefan,
Unger Kristian,
Hess Julia,
Bertlich Mattis,
Haubner Frank,
Ihler Friedrich,
Canis Martin,
Weiss Bernhard G.,
Kitz Julia
Publication year - 2019
Publication title -
head and neck
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.012
H-Index - 127
eISSN - 1097-0347
pISSN - 1043-3074
DOI - 10.1002/hed.25866
Subject(s) - microrna , cohort , cancer , basal cell , oncology , medicine , cancer research , gene , biology , genetics
Background MicroRNAs (miRNA) recently evolved as potential cancer biomarkers. Therefore, the aim of the present study was to evaluate the prognostic impact of eight miRNAs connected to oral squamous cell carcinoma (OSCC). Method Expression levels of hsa‐mir‐21‐5p, hsa‐mir‐29b‐3p, hsa‐mir‐31‐5p, hsa‐mir‐99a‐5p, hsa‐mir‐99b‐3p, hsa‐mir‐100‐5p, hsa‐mir‐143‐3p and hsa‐mir‐155‐5p were analyzed in tumor tissue (n = 36) and healthy oral mucosal tissue (n = 17) and correlated with clinical variables. Results of the study cohort were validated in an OSCC cohort of The Cancer Genome Atlas . Results Increased hsa‐mir‐99b‐3p expression level showed a tendency toward advanced tumor stages, and high levels of hsa‐mir‐100‐5p expression were associated with extracapsular extension. While a high expression level of hsa‐mir‐99b‐3p was associated with better survival, a high expression level of hsa‐mir‐100‐5p was correlated with a poorer survival in the study cohort. Conclusion Our results indicate that hsa‐mir‐99b‐3p and hsa‐mir‐100‐5p may serve as novel prognostic biomarkers in OSCC.