沉默长链非编码RNA HOTAIR对舌鳞状细胞癌细胞放射敏感性的影响

doi:10.13701/j.cnki.kqyxyj.2023.04.006

口腔医学研究 ›› 2023, Vol. 39 ›› Issue (4): 316-321.DOI: 10.13701/j.cnki.kqyxyj.2023.04.006

沉默长链非编码RNA HOTAIR对舌鳞状细胞癌细胞放射敏感性的影响

张洋¹, 龚忠诚², 肖雪玲³, 刘攀¹, 宿伟鹏¹, 赵化荣^1*

1.新疆医科大学第一附属医院肿瘤中心新疆乌鲁木齐 830054;
2.新疆医科大学第一附属医院颌面肿瘤外科新疆乌鲁木齐 830054;
3.新疆医科大学新疆乌鲁木齐 830054

收稿日期:2022-12-08 出版日期:2023-04-28 发布日期:2023-04-19
通讯作者: ^*赵化荣,E-mail:xydyfyzhr@163.com
作者简介:张洋(1988~ ),女,山东人,硕士,主治医师,研究方向:头颈部肿瘤的放化疗。
基金资助:
省部共建重点实验室(SKL-HIDCA-2021-6、SKL-HIDCA-2021-47)

Effect of Silencing Long Noncoding RNA HOTAIR on Radiosensitivity of Tongue Squamous Cell Cells

ZHANG Yang¹, GONG Zhongcheng², XIAO Xueling³, LIU Pan¹, SU Weipeng¹, ZHAO Huarong^1*

1. Oncology Center, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China;
2. Oncology Department of Oral & Maxillofacial Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830054, China;
3. Xinjiang Medical University, Urumqi 830054, China

Received:2022-12-08 Online:2023-04-28 Published:2023-04-19

摘要/Abstract

摘要： 目的: 研究下调长链非编码RNA HOTAIR的表达水平对舌鳞状细胞癌细胞株CAL-27和SCC-9放射敏感性的影响。方法: 设计3条干扰HOTAIR的序列,通过慢病毒载体转染至CAL-27和SCC-9中,运用实时荧光定量聚合酶链反应(qRT-PCR)验证干扰效率。将细胞分为空白组(CAL-27、SCC-9)、实验组(si-HOTAIR CAL-27、si-HOTAIR SCC-9)、阴性对照组(si-NC CAL-27、si-NC SCC-9),再将以上细胞给予8 Gy电子线照射,MTT法检测各组细胞增殖,划痕实验检测各组细胞迁移,流式细胞实验检测各组细胞凋亡情况。结果: 在3条慢病毒载体中,si-2及si-3可下调HOTAIR在CAL-27和SCC-9中的表达(P＜0.05),且si-3干扰效率最高(P＜0.05),在接受8 Gy电子线照射后,与对照组(si-NC CAL-27、si-NC SCC-9)相比,实验组(si-HOTAIR CAL-27、si-HOTAIR SCC-9)的增殖能力明显减弱(P＜0.05);细胞凋亡率增加[(23.87±1.97)% vs.(46.03±2.49)%,(15.99±0.76)% vs.(39.38±2.95)%)],迁移率下降[65.85% vs. 58.82%,47.81% vs. 37.78%)],差异有统计学意义(P＜0.05)。结论: 降低HOTAIR的表达水平可提高舌鳞癌细胞 CAL-27和SCC-9的放射敏感性。

关键词: 舌鳞状细胞癌, HOTAIR, 迁移, 凋亡, 放射敏感性

Abstract: Objective: To investigate the effect of down-regulated expression of long-chain non-coding RNA HOTAIR on the radiosensitivity of tongue squamous cell lines CAL-27 and SCC-9. Methods: Three HOTAIR interference sequences were designed and transfected into tongue squamous cell cells CAL-27 and SCC-9 by lentiviral vector. The interference efficiency was verified by real-time fluorescence quantitative PCR (qRT-PCR). The cells were divided into blank group (CAL-27, SCC-9), experimental group (si-HOTAIR CAL-27, si-HOTAIR SCC-9), and negative control group (si-NC CAL-27, si-NC SCC-9). The cells were irradiated with 8Gy electron line. MTT assay was used to detect the cell proliferation, scratch assay was used to detect the cell migration, and flow cytometry was used to detect the cell apoptosis. Results: Among three lectin vectors, si-2 and si-3 down-regulated HOTAIR expression in tongue squamous cell cells CAL-27 and SCC-9 (P<0.05), and si-3 had the highest interference efficiency (P<0.05). After receiving 8Gy electron line irradiation, compared with the control group (si-NC CAL-27 and si-NC SCC-9), the proliferative ability of the experimental group (si-HOTAIR CAL-27 and SI-NC SCC-9) was significantly decreased (P<0.05), apoptosis rate was increased [(23.87±1.97) % vs. (46.03±2.49) %, (15.99±0.76) % vs. (39.38±2.95) %)], and migration rate was decreased [65.85% vs. 58.82%, 47.81% vs. 37.78%]. The difference was statistically significant (P<0.05). Conclusion: Reducing the expression level of HOTAIR can increase the radiosensitivity of CAL-27 and SCC-9 of tongue squamous cell.

Key words: tongue squamous cell carcinoma, HOTAIR, migration, apoptosis, radiosensitivity

张洋, 龚忠诚, 肖雪玲, 刘攀, 宿伟鹏, 赵化荣. 沉默长链非编码RNA HOTAIR对舌鳞状细胞癌细胞放射敏感性的影响[J]. 口腔医学研究, 2023, 39(4): 316-321.

ZHANG Yang, GONG Zhongcheng, XIAO Xueling, LIU Pan, SU Weipeng, ZHAO Huarong. Effect of Silencing Long Noncoding RNA HOTAIR on Radiosensitivity of Tongue Squamous Cell Cells[J]. Journal of Oral Science Research, 2023, 39(4): 316-321.

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沉默长链非编码RNA HOTAIR对舌鳞状细胞癌细胞放射敏感性的影响

Effect of Silencing Long Noncoding RNA HOTAIR on Radiosensitivity of Tongue Squamous Cell Cells

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