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Tropomyosin-1 acts as a potential tumor suppressor in human oral squamous cell carcinoma.


ABSTRACT: It is widely accepted that oral squamous cell carcinoma (OSCC) is a major contributor to the incidence and mortality of neck and head cancer. Tropomyosin-1 (TPM1), which is expressed at a low level, has been considered a prominent tumor-suppressing gene in a variety of solid tumors, although the precise mechanism of the TPM1 gene in OSCC progression remains unknown. We found that TPM1 expression levels decreased in OSCC patients and OSCC cell lines. The overall and cancer-specific survival of patients who exhibited low TPM1 levels were inferior to those of patients who had high TPM1 levels. It was also found that OSCC patients who suffered from disease stage?-? were more likely to have an up-regulated TPM1 expression level, and OSCC patients with lymph node metastasis had a higher probability of exhibiting reduced TPM1 expression. We show that overexpression of TPM1 can promote cell apoptosis and inhibit migration. Our results suggest that TPM1 can suppress tumors in OSCC, and the TPM1 expression level is related to OSCC patient prognosis.

SUBMITTER: Pan H 

PROVIDER: S-EPMC5300227 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Tropomyosin-1 acts as a potential tumor suppressor in human oral squamous cell carcinoma.

Pan Hao H   Gu Liqun L   Liu Binjie B   Li Yiping Y   Wang Yuehong Y   Bai Xinna X   Li Long L   Wang Baisheng B   Peng Qian Q   Yao Zhigang Z   Tang Zhangui Z  

PloS one 20170209 2


It is widely accepted that oral squamous cell carcinoma (OSCC) is a major contributor to the incidence and mortality of neck and head cancer. Tropomyosin-1 (TPM1), which is expressed at a low level, has been considered a prominent tumor-suppressing gene in a variety of solid tumors, although the precise mechanism of the TPM1 gene in OSCC progression remains unknown. We found that TPM1 expression levels decreased in OSCC patients and OSCC cell lines. The overall and cancer-specific survival of pa  ...[more]

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