基于LncRNA NANCI-NKX2.1信号通路探讨清肺养阴活血方保护放射性肺损伤的作用研究

胡彦辉, 崔庆丽, 马东阳, 耿良, 于卫江

中国药学杂志 ›› 2019, Vol. 54 ›› Issue (6) : 457-463.

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中国药学杂志 ›› 2019, Vol. 54 ›› Issue (6) : 457-463. DOI: 10.11669/cpj.2019.06.005
论著

基于LncRNA NANCI-NKX2.1信号通路探讨清肺养阴活血方保护放射性肺损伤的作用研究

  • 胡彦辉, 崔庆丽, 马东阳, 耿良*, 于卫江
作者信息 +

Effect of Qingfei-yangyin-huoxue Recipe on Radiation-induced Pulmonary Injury via lncRNA NANCI-NKX2.1 Pathway

  • HU Yan-hui, CUI Qing-li, MA Dong-yang, GENG Liang*, YU Wei-jiang
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文章历史 +

摘要

目的 探讨清肺养阴活血方对放射性肺损伤小鼠模型的保护作用以及对长非编码RNA NANCI-NKX2.1信号通路的影响。方法 将C57BL/6小鼠分为空白对照组(A组)、中药对照组(B组)、模型对照组(C组)和中药模型组(D组),每组各16只。建模后次日开始给予清肺养阴活血方干预。给药10周后,将动物颈椎脱臼处死,观察肺组织病理学变化,并进行H&E染色和Masson染色。采用qRT-PCR法和Western blot法检测长链非编码RNA NANCI和NKX2.1 mRNA和蛋白的表达水平。结果 A组和B组动物体重变化率基本一致(P>0.05)。直至实验结束时,虽然D组动物体重一直低于A组和B组动物(P<0.05);但是自给药7 d后,D组动物体重逐渐高于C组动物(P<0.05)。经H&E染色和Masson染色,A组和B组肺组织结构完整, C组可见明显的炎性细胞浸润,大量胶原纤维沉着,而D组动物肺组织病理学变化情况较C组明显改善。D组动物肺组织损伤评分为(3.875±1.746)分,明显高于A组和B组动物评分,但是低于C组动物评分(P<0.05)。另外,D组动物肺组织lncRNA NANCI、NKX2.1 mRNA和蛋白相对表达量明显低于A组和B组动物表达量,但是高于C组动物表达量(P<0.05)。且与肺组织损伤评分呈负相关性(r=-0.510,-0.786,P<0.05)。结论 清肺养阴活血方可能通过正性调控lncRNA NANCI-NKX2.1信号通路保护放射性肺组织损伤。

Abstract

OBJECTIVE To discuss the effect of Qingfei-yangyin-huoxue recipe on radiation-induced pulmonary injury by regulating the lncRNA NANCI-NKX2.1 pathway. METHODS The C57BL/6 mice were randomly divided into normal control group (A group, n=16), drug only group (B group, n=16), model group (C group, n=16) and drug model group (D group, n=16). After exposure to Qingfei-yangyin-huoxue recipe for 10 w, the pathological change of lung tissue was examined by H&E and Masson staining. The expressions of lncRNA NANCI and NKX2.1 mRNA in lung tissues were detected by qRT-PCR. And the NKX2.1 protein expressions were detected by Western blot. RESULTS The mean animal weight in D groups was less than A and B group, but more than C group after treatment of 7 d(P<0.05). There were marked interstitial edema and inflammatory cells, fibrocytes accumulation in C group but not in A and B groups by H&E and Masson stain. The alveolitis and fibrosis changes in D group were better than C group. And the mean radiation-induced pulmonary injury score in D group was (3.875±1.746), which was less than C group, but more than A and B groups (P<0.05). The expression of lncRNA NANCI and NKX2.1in D group was higher than C group, but lower than A and B groups (P<0.05). Besides, the radiation-induced pulmonary injury score was negative related with lncRNA NANCI and NKX2.1 (r=-0.510, -0.786, P<0.05). CONCLUSION There are significant evidences that Qingfei-yangyin-huoxue recipe could protect radiation-induced pulmonary injury by up-regulation lncRNA NANCI-NKX2.1 pathway.

关键词

长链非编码RNA / NANCI / 核转录因子NKX2.1 / 放射性肺损伤 / C57BL/6小鼠

Key words

lncRNA / NANCI / NKX2.1 / radiation-induced pulmonary injury / C57BL/6 mice

引用本文

导出引用
胡彦辉, 崔庆丽, 马东阳, 耿良, 于卫江. 基于LncRNA NANCI-NKX2.1信号通路探讨清肺养阴活血方保护放射性肺损伤的作用研究[J]. 中国药学杂志, 2019, 54(6): 457-463 https://doi.org/10.11669/cpj.2019.06.005
HU Yan-hui, CUI Qing-li, MA Dong-yang, GENG Liang , YU Wei-jiang. Effect of Qingfei-yangyin-huoxue Recipe on Radiation-induced Pulmonary Injury via lncRNA NANCI-NKX2.1 Pathway[J]. Chinese Pharmaceutical Journal, 2019, 54(6): 457-463 https://doi.org/10.11669/cpj.2019.06.005
中图分类号: R965   

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基金

国家自然科学基金项目资助(81473638);河南省科技攻关计划资助(社会发展领域)(172102310602)
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