Laboratory Medicine ›› 2022, Vol. 37 ›› Issue (7): 605-609.DOI: 10.3969/j.issn.1673-8640.2022.07.001

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Expression of lncRNA HULC in papillary thyroid carcinoma tissues

JI Ye1, YUAN Xiaosun1, ZHANG Lei1, MA Huili1, XUE Yongfei1, LI Changsheng1, ZHANG Jingwei1, REN Zhonghai1(), ZHANG Tengfei2   

  1. 1. Second Ward,Department of Oncology,Nanyang Central Hospital,Nanyang 473000,Henan,China
    2. First Ward,Department of Oncology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou 450001,Henan,China
  • Received:2020-10-07 Revised:2021-12-27 Online:2022-07-30 Published:2022-08-26
  • Contact: REN Zhonghai

Abstract:

Objective To investigate the expression of long non-coding RNA(lncRNA)highly up-regulated in liver cancer(HULC) in papillary thyroid carcinoma(PTC) tissues,and to study the effect of interfering with this gene on cell proliferation activity and invasiveness. Methods A total of 105 patients with PTC who underwent surgical treatment were enrolled. The PTC tissues removed during the operation and the adjacent tissues more than 2 cm from the tumor edge were collected. The relative expression level of HULC was determined by real-time fluorescence quantitative polymerase chain reaction(RT-qPCR). The TPC-1 cells were transfected with different sequences. According to the different transfection sequences of TPC-1 cells,they were classified into si-HULC group(transfected with small molecule interference sequence of HULC),si-Con group(transfected with negative control sequence) and blank group(not transfected). The expression of HULC,cell proliferation activity and invasiveness in each group were determined. Results The relative expression level of HULC in PTC tissues was higher than that in adjacent tissues(P<0.001). The differences of the expression levels of HULC in PTC tissues with different tumor diameters,TNM stages and lymph node metastasis had statistical significance(P<0.05). There was no statistical significance for the expression levels of HULC in PTC tissues with different ages,sex,the numbers of lesions and the types of local invasion(P>0.05). The relative expression level of HULC,cell proliferation activity and the number of invasive cells in si-HULC group were lower than those in si-Con group and blank group(P<0.05),and there was no statistical significance between si-Con group and blank group(P>0.05). Conclusions The expression of HULC in PTC tissues is increased,and it is related to tumor size,TNM stage and lymph node metastasis. Interfering with HULC expression in TPC-1 cells can inhibit cell proliferation activity and invasiveness.

Key words: Highly up-regulated in liver cancer, Long non-coding RNA, Proliferation activity, Invasiveness, Papillary thyroid carcinoma

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