淫羊藿、女贞子含药血清联合糖皮质激素影响雷帕霉素诱导ASMCs自噬激活的机制研究Mechanism of the Combination of Glucocorticoid and Herba Epimedii/Fructus Ligustri Lucidi in Rapamycin-induced ASMCs′ Autophagy
王瀚;龙玉婷;马紫童;李玉曼;马再娜;于萍;刘仁慧;
摘要(Abstract):
目的 研究淫羊藿女贞子含药血清合用地塞米松对自噬激活剂雷帕霉素(Rap)诱导的气道平滑肌细胞(ASMCs)自噬、凋亡及增殖活性的影响。方法 培养大鼠原代ASMCs,随机分为5组,即正常组(正常大鼠血清)、Rap组(正常大鼠血清+Rap)、激素组(正常大鼠血清+地塞米松+Rap)、中药组(Rap+淫羊藿、女贞子含药血清)、合用组(Rap+淫羊藿、女贞子含药血清+地塞米松)。根据分组分别加入正常大鼠血清或含药大鼠血清;除正常组外,其余各组同时加入Rap刺激ASMCs,48 h后进行检测。电镜观察细胞超微结构;MTT法检测细胞活力;免疫细胞化学法检测增殖蛋白Ki-67蛋白表达并评价细胞增殖活性;Annexin V-FITC/PI法检测细胞凋亡活性;Western blotting检测LC3蛋白相对表达;细胞免疫荧光法检测Bax、Bcl-2、Beclin-1、P53、Caspase-3、mTOR、p-mTOR蛋白表达。结果 激素可协同Rap诱导ASMCs自噬活性增加,使LC3Ⅱ/Ⅰ蛋白比值进一步增加,下调p-mTOR表达,但对Beclin-1及m TOR表达无影响,抑制ASMCs细胞活力及增殖活性,可增加凋亡水平,上调Bax、Caspase-3及P53表达,下调Bcl-2表达。中药组及合用组均能显著抑制Rap诱导的ASMCs自噬,下调LC3Ⅱ/Ⅰ蛋白比值及Beclin-1蛋白表达,并改善Rap导致的细胞活力、增殖活性降低。此外中药能抑制凋亡活性升高,上调Caspase-3蛋白表达,下调P53蛋白表达;中西药合用能下调p-mTOR蛋白表达,但对凋亡活性无显著影响。与激素单用比较,合用组下调LC3Ⅱ/LC3Ⅰ比值,调节ASMCs细胞活力、增殖活性及凋亡活性均有统计学差异(P <0.05或P <0.01)。结论 中药联合糖皮质激素可抑制激素协同Rap诱导的ASMCs过度自噬状态,并改善被抑制的细胞活性,使ASMCs趋于正常。
关键词(KeyWords): 气道平滑肌细胞;自噬;凋亡;淫羊藿;女贞子;糖皮质激素;雷帕霉素
基金项目(Foundation): 国家自然科学基金项目(81873115);; 北京市自然科学基金资助项目(7202014)
作者(Authors): 王瀚;龙玉婷;马紫童;李玉曼;马再娜;于萍;刘仁慧;
参考文献(References):
- [1] Suojalehto H,Kinaret P,Kilpelainen M,et al. Level of fatty acid bindingprotein 5(FABP5)is increased in sputum of allergic asthmatics and links toairway remodeling and inflammation[J]. PloS One,2015,10(5):e0127003.
- [2]唐秀凤,李晓曦,年宏蕾,等.基于Th1细胞功能研究中药合地塞米松对哮喘大鼠p JAKs/pSTATs的影响[J].中国中医急症,2017,26(5):753-755,760.
- [3]朴艺花. TGF-β1-TAK1-AMPKα激活PINK1-Parkin通路介导线粒体自噬调控气道平滑肌细胞增殖及对哮喘气道重构的影响[D].延吉:延边大学,2021.
- [4] Ghavami S,Sharma P,Yeganeh B,et al. Airway mesenchymal cell death by mevalonate cascade inhibition:integration of autophagy,unfolded protein response and apoptosis focusing on Bcl2 family proteins[J]. Biochim Biophys Acta,2014,1843(7):1259-1271.
- [5]刘仁慧,郑君芳,袁颖,等.淫羊藿女贞子配伍调节哮喘大鼠NO/ET及HPA轴作用的研究[J].中国中药杂志,2010,35(12):1590-1593.
- [6] Ma XT,Tang XF,Gao YY,et al. Combined extracts of epimedii folium and ligustri lucidi fructus with budesonide attenuate airway remodeling in the asthmatic rats by regulating apoptosis and autophagy[J]. Evid Based Complement Alternat Med,2020(2020):2319409.
- [7] Tang XF,Nian HL,Li XX,et al. Effects of the combined extracts of Herba Epimedii and Fructus Ligustrilucidi on airway remodeling in the asthmatic rats with the treatment of budesonide[J]. BMC Complement Altern Med,2017(17):380.
- [8]马紫童,唐秀凤,高莹莹,等.淫羊藿女贞子配伍协同激素对哮喘大鼠肺组织细胞凋亡的影响[J].中国中医急症,2019,28(6):941-944,957.
- [9]王亚洲,何鹏,王丹虹.孟鲁司特钠通过抑制TLR4/NF-κB信号通路影响哮喘大鼠气道平滑肌细胞增殖和凋亡[J].吉林大学学报:医学版,2020,46(2):274-279.
- [10] McAlinden KD,Deshpande DA,Ghavami S,et al. Autophagy activation in asthma airways remodeling[J]. Am J Respir Cell Mol Biol,2019,60(5):541-553.
- [11]王瀚,马紫童,刘仁慧.基于凋亡/自噬调控研究中药缓解气道重塑的作用机制进展[J].中国中医急症,2021,30(1):168-171,175.
- [12] Farooq MB,Walsh GM. Autophagy and asthma[J]. Clin Exp Allergy,2016,46(1):7-9.
- [13] Ghavami S,Cunnington RH,Gupta S,et al. Autophagy is a regulator of TGF-β1-induced fibrogenesis in primary human atrial myofibroblasts[J]. Cell Death Dis,2015,6(3):e1696.
- [14]熊申明,任章朋,史梦婕,等.基于mTOR通路和自噬探讨香菇多糖改善脓毒症小鼠肺损伤的作用机制[J].中草药,2022,53(7):2071-2077.
- [15] Ko JH,Yoon SO,Lee HJ,et al. Rapamycin regulates macrophage activation by inhibiting NLRP3 inflammasome-p38MAPK-NF-κB pathways in autophagy-and p62-dependent manners[J]. Oncotarget,2017,8(25):40817-40831.
- [16]金华良,周燕,王利民.雷帕霉素促进哮喘调节性T细胞分化及功能的机制[J].浙江大学学报:医学版,2021,50(5):621-626.
- [17] Lee HS,Park HW. Role of mTOR in the development of asthma in mice with cigarette smoke-induced cellular senescence[J]. J Gerontol A Biol Sci Med Sci,2022,77(3):433-442.
- [18] Fredriksson K,Fielhaber JA,Lam JK,et al. Paradoxical effects of rapamycin on experimental house dust mite-induced asthma[J]. PLoS One,2012,7(5):e33984.