Open Access

TGF-β1 induces HMGA1 expression: The role of HMGA1 in thyroid cancer proliferation and invasion

  • Authors:
    • Jing Zhong
    • Chang Liu
    • Qing-Hai Zhang
    • Ling Chen
    • Ying-Ying Shen
    • Ya-Jun Chen
    • Xi Zeng
    • Xu-Yu Zu
    • Ren-Xian Cao
  • View Affiliations

  • Published online on: April 7, 2017     https://doi.org/10.3892/ijo.2017.3958
  • Pages: 1567-1578
  • Copyright: © Zhong et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The role of transforming growth factor-β1 (TGF-β1) is complicated and plays a different role in the development of cancer. High mobility group A (HMGA1) participates in multiple cellular biology processes, and exerts important roles in the epithelial-mesenchymal transition (EMT). However, the correlation of TGF-β1 and HMGA1 in cancer cells is not yet fully understood. In this study, we determined the effects of TGF-β1 on HMGA1 expression in thyroid cancer cells and examined the role of HMGA1 in thyroid cancer progression. With real-time PCR and immunofluorescence staining, our study demonstrated that TGF-β1 induced the expression of HMGA1 through phosphoinositide 3-kinase (PI3K) and the extracellular signal-related kinase (ERK) signaling in thyroid cancer cells. With luciferase reported assay, the HMGA1 promoter activity was activated by TGF-β1 in the SW579 cells. Furthermore, lentivirus-mediated HMGA1 knockdown inhibits cellular oncogenic properties of thyroid cancer cells. Clinically, tissue microarray revealed that HMGA1 was expressed in thyroid carcinoma more than that in normal thyroid tissues (P<0.001); expression of HMGA1 and MMP-2 was identified to be positively correlated (P=0.017). The present study established the first link between HMGA1 and TGF-β1 in the regulation of thyroid cancer proliferation and invasion, and provided evidence for the pivotal role of HMGA1 in the progression of thyroid cancer, indicating HMGA1 to be potential biological marker for the diagnosis of thyroid cancer.
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May-2017
Volume 50 Issue 5

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Zhong J, Liu C, Zhang Q, Chen L, Shen Y, Chen Y, Zeng X, Zu X and Cao R: TGF-β1 induces HMGA1 expression: The role of HMGA1 in thyroid cancer proliferation and invasion. Int J Oncol 50: 1567-1578, 2017.
APA
Zhong, J., Liu, C., Zhang, Q., Chen, L., Shen, Y., Chen, Y. ... Cao, R. (2017). TGF-β1 induces HMGA1 expression: The role of HMGA1 in thyroid cancer proliferation and invasion. International Journal of Oncology, 50, 1567-1578. https://doi.org/10.3892/ijo.2017.3958
MLA
Zhong, J., Liu, C., Zhang, Q., Chen, L., Shen, Y., Chen, Y., Zeng, X., Zu, X., Cao, R."TGF-β1 induces HMGA1 expression: The role of HMGA1 in thyroid cancer proliferation and invasion". International Journal of Oncology 50.5 (2017): 1567-1578.
Chicago
Zhong, J., Liu, C., Zhang, Q., Chen, L., Shen, Y., Chen, Y., Zeng, X., Zu, X., Cao, R."TGF-β1 induces HMGA1 expression: The role of HMGA1 in thyroid cancer proliferation and invasion". International Journal of Oncology 50, no. 5 (2017): 1567-1578. https://doi.org/10.3892/ijo.2017.3958