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TBX3 knockdown suppresses the proliferation of hypopharyngeal carcinoma FaDu cells by inducing G1/S cell cycle arrest and apoptosis.

ABSTRACT: The T-box transcription factor family member TBX3 has been demonstrated to participate in the development of various types of cancer, including head and neck squamous cell carcinoma. However, little is currently known about its role in hypopharyngeal carcinoma. In the present study, the involvement of TBX3 in hypopharyngeal carcinoma was investigated. Immunohistochemical assays revealed that TBX3 levels were increased in hypopharyngeal carcinoma compared with normal tissue samples, accompanied by upregulated N-cadherin and downregulated E-cadherin. Lentivirus-mediated TBX3 knockdown efficiently suppressed its expression and inhibited the proliferation of FaDu cells. The opposite was observed in TBX3-overexpressing FaDu cells. These results indicate that TBX3 is essential for FaDu cell proliferation. Furthermore, TBX3 silencing led to a disturbance of the cell cycle, leading to a decrease in the G1 phase and an increase in the S phase. In addition, apoptosis was enhanced following TBX3 knockdown. The present results suggest TBX3 as a potential therapeutic target in hypopharyngeal carcinoma.

SUBMITTER: Huang Y 

PROVIDER: S-EPMC6923984 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature

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TBX3 knockdown suppresses the proliferation of hypopharyngeal carcinoma FaDu cells by inducing G1/S cell cycle arrest and apoptosis.

Huang Yongjiu Y   Zhu Hongmei H   Ji Xiaohui X   Chen Yin Y   Zhang Yanhui Y   Huang Ruofei R   Xie Jin J   Dong Pin P  

Oncology letters 20191113 1

The T-box transcription factor family member TBX3 has been demonstrated to participate in the development of various types of cancer, including head and neck squamous cell carcinoma. However, little is currently known about its role in hypopharyngeal carcinoma. In the present study, the involvement of TBX3 in hypopharyngeal carcinoma was investigated. Immunohistochemical assays revealed that TBX3 levels were increased in hypopharyngeal carcinoma compared with normal tissue samples, accompanied b  ...[more]

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