Open Access

Expression of lncRNA‑HOTAIR in the serum of patients with lymph node metastasis of papillary thyroid carcinoma and its impact

  • Authors:
    • Lan Wu
    • Yanqing Shi
    • Baoguo Liu
    • Mengting Zhao
  • View Affiliations

  • Published online on: May 14, 2020     https://doi.org/10.3892/ol.2020.11620
  • Pages: 907-913
  • Copyright: © Wu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

The present study aimed to investigate the expression of long non‑coding HOX transcript antisense RNA (lncRNA‑HOTAIR) in the serum of patients with lymph node metastasis of papillary thyroid carcinoma (PTC) and the underlying mechanism. A total of 89 patients with PTC at Beijing Geriatric Hospital were recruited in this study. Based on the results of color Doppler ultrasound examination, the patients were evaluated for cervical lymph node metastases, and were thereby divided into a metastasis‑negative group and a metastasis‑positive group. Quantitative fluorescent PCR was used to assess the expression of HOTAIR in serum samples. The PTC cell line TPC‑1 was randomly divided into a control and siRNA group. The control group was transfected with a nonsense sequence, while the siRNA group was transfected with si‑HOTAIR. After transfection, cell proliferation was evaluated using the MTT assay, and cell migration and invasion were assessed using the cell scratch assay and Transwell assay. Expression levels of vimentin, E‑cadherin and proteins associated with the Wnt/β‑catenin signaling pathway were assessed using western blot analysis. Based on the results of the ultrasound examination, 53 patients were allocated to the metastasis‑negative group, and 36 to the metastasis‑positive group. The expression level of lncRNA‑HOTAIR was higher in the metastasis‑positive group than that in the metastasis‑negative group (P<0.05). Compared with the control group, cell proliferation was reduced while cell migration rate and the number of migrating cells were increased in the siRNA group. Compared with the control group, the expression levels of WIF1 and E‑cadherin were significantly increased, while the levels of β‑catenin and vimentin were significantly decreased. In conclusion, lncRNA‑HOTAIR is overexpressed in the serum of patients with lymph node metastasis of PTC. In vitro experiments showed that HOTAIR promoted the proliferation and metastasis of PTC cells by regulating epithelial‑mesenchymal transition (EMT) mediated by the Wnt/catenin pathway. Thus, lncRNA‑HOTAIR is proposed as a molecular target for the treatment of lymph node metastasis of PTC.

Related Articles

Journal Cover

July 2020
Volume 20 Issue 1

Print ISSN: 1792-1074
Online ISSN:1792-1082

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
APA
Wu, L., Shi, Y., Liu, B., & Zhao, M. (2020). Expression of lncRNA‑HOTAIR in the serum of patients with lymph node metastasis of papillary thyroid carcinoma and its impact. Oncology Letters, 20, 907-913. https://doi.org/10.3892/ol.2020.11620
MLA
Wu, L., Shi, Y., Liu, B., Zhao, M."Expression of lncRNA‑HOTAIR in the serum of patients with lymph node metastasis of papillary thyroid carcinoma and its impact". Oncology Letters 20.1 (2020): 907-913.
Chicago
Wu, L., Shi, Y., Liu, B., Zhao, M."Expression of lncRNA‑HOTAIR in the serum of patients with lymph node metastasis of papillary thyroid carcinoma and its impact". Oncology Letters 20, no. 1 (2020): 907-913. https://doi.org/10.3892/ol.2020.11620