Global Proteomics-based Identification and Validation of Thymosin Beta-4 X-Linked as a Prognostic Marker for Head and Neck Squamous Cell Carcinoma

Li Hsing Chi, Wei Min Chang, Yu Chan Chang, Yung Chieh Chan, Chia Chen Tai, Kam Wing Leung, Chi Long Chen, Alexander Th Wu, Tsung Ching Lai, Yu Chuan Li, Michael Hsiao

Research output: Contribution to journalArticle

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Abstract

Head and neck squamous cell carcinoma (HNSCC) represents a major health concern worldwide. We applied the matrix-assisted laser desorption/ionization (MALDI) imaging mass spectrometry (IMS) to analyze paired normal (N) and tumor (T) samples from head and neck squamous cell carcinoma as well as liquid chromatography with tandem mass spectrometry (LC-MS/MS) analysis in HNSCC cell lines to identify tumor-associated biomarkers. Our results showed a number of proteins found to be over-expressed in HNSCC. We identified thymosin beta-4 X-linked (TMSB4X) is one of the most significant candidate biomarkers. Higher TMSB4X expression in the tumor was found by N/T-paired HNSCC samples at both RNA and protein level. Overexpression of TMSB4X was found significantly associated with poor prognosis of overall survival (OS, P = 0.006) and recurrence-free survival (RFS, P = 0.013) in HNSCC patients. Silencing of TMSB4X expression in HNSCC cell line reduced the proliferation and invasion ability in vitro, as well as inhibited the cervical lymph node metastasis in vivo. Altogether, our global proteomics analysis identified that TMSB4X is a newly discovered biomarker in HNSCC whose functions resulted in enhanced proliferation and metastasis in vitro and in vivo. TMSB4X may be a potential therapeutic target for treating HNSCC patients.

Original languageEnglish
Article number9031
JournalScientific Reports
Volume7
Issue number1
DOIs
Publication statusPublished - Dec 1 2017

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Proteomics
Biomarkers
Neoplasm Metastasis
Carcinoma, squamous cell of head and neck
thymosin beta(4)
Cell Line
Survival
Matrix-Assisted Laser Desorption-Ionization Mass Spectrometry
Tumor Biomarkers
Tandem Mass Spectrometry
Liquid Chromatography
Neoplasms
Proteins
Lymph Nodes
RNA
Recurrence

ASJC Scopus subject areas

  • General

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Global Proteomics-based Identification and Validation of Thymosin Beta-4 X-Linked as a Prognostic Marker for Head and Neck Squamous Cell Carcinoma. / Chi, Li Hsing; Chang, Wei Min; Chang, Yu Chan; Chan, Yung Chieh; Tai, Chia Chen; Leung, Kam Wing; Chen, Chi Long; Wu, Alexander Th; Lai, Tsung Ching; Li, Yu Chuan; Hsiao, Michael.

In: Scientific Reports, Vol. 7, No. 1, 9031, 01.12.2017.

Research output: Contribution to journalArticle

Chi, Li Hsing ; Chang, Wei Min ; Chang, Yu Chan ; Chan, Yung Chieh ; Tai, Chia Chen ; Leung, Kam Wing ; Chen, Chi Long ; Wu, Alexander Th ; Lai, Tsung Ching ; Li, Yu Chuan ; Hsiao, Michael. / Global Proteomics-based Identification and Validation of Thymosin Beta-4 X-Linked as a Prognostic Marker for Head and Neck Squamous Cell Carcinoma. In: Scientific Reports. 2017 ; Vol. 7, No. 1.
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AU - Tai, Chia Chen

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