Tubercidin_COA_20485_MedChemExpress
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January 2021Vol.41 No.12021 年 1 月 第 41 卷 第 1 期基础医学与临床Basic & Clinical Medicine文章编号:1001-6325 ( 2021 ) 01-0087-06研究论文大动脉炎患者外周血单个核细胞RT-qPCR 内参基因的选择田苡箫,李菁*收稿日期:2019-11-18 修回日期:2020-04-30*通信作者(corresponding author ) :lijing6515@ (中国医学科学院北京协和医学院北京协和医院风湿免疫科风湿免疫病学教育部重点实验室国家皮肤与免疫疾病临床医学研究中心,北京100032)扌摘要:目的筛选适于在大动脉炎(TAK )患者和健康人群(HC )之间比较外周血单个核细胞(PBMC )中mRNA 表达水平的内参基因。
方法提取PBMC 中的总RNA,应用RT-qPCR ,分别采用geNorm 、NormFinder 、BestKeeper 3种软 件程序,分析 3-glucuronidase ,GAPDH ,ACTB ,SDHA ,HPRT1,RPL13A ,B2M , YWHAZ 和 PKG1 9 个基因的 mRNA 表达稳定性。
以T-bet 、GATA3和RORC 作为目的基因,比较不同稳定性的内参基因对mRNA 相对丰度的影响。
结果geNorm 筛选得到的基因组合为B 2M-SDHA , Nor^nFinder 和BestKeeper 筛选出最稳定的内参基因均为HPRT1 ; 3种方法均显示GAPDH 的稳定性较差。
结论自身免疫病患者在接受免疫抑制药物治疗时,原本稳定表达的基因可能会 上调或下调;在样本量较小时,稳定性更好的内参基因可能更有助于检测组间差异。
关键词:大动脉炎;实时定量聚合酶链式反应;RNA 稳定性;内参基因选择中图分类号:R593.2 文献标志码:AValidation of reference genes for the normalization of the RT-qPCRin peripheral blood mononuclear cells of patients with Takayasu arteritisTIAN Yi-xiao , LI Jing *(Department of Rheumatology and Immunology , Key Laboratory of Rheumatology and Clinical Immunology , Ministry of Education ,National Clinical Research Center for Dermatologic and Immunologic Diseases ( NCRC-DID ),Peking Union Medical College Hospital , CAMS & PUMC , Beijing 100032, China)Abstract : Objective To validate proper reference genes for quantitative real-time polymerase chain reaction ( RT-qPCR) used for comparing mRNA expression levels in Takayasu arteritis" (TAK) and healthy controls' ( HC ) pe ripheral blood mononuclear cells ( PBMC ). Methods Total RNA in PBMCs was extracted and used RT-qPCR to determine the profiles of 9 candidate genes , including 0-glucuronidase, GAPDH , ACTB , SDHA , HPRT1, RPL13A , B2M , YWHAZ and PKG1. Then compared their transcription stability by geNorm , NormFinder , and Best Keeper. Afterwards , with T-bet , GATA3 and RORC as the targeted genes , explored the influence of reference genes with different stability on mRNA relative abundance. Results The gene combination of B2M-SDHA was selected bygeNorm , and HPRT1 was the most stable one in analysis results of NormFinder and BestKeeper , while GAPDH was less stable. Conclusions Genes that have been expressed stably may be upregulated or downregulated whenpatients with autoimmune diseases received immunosuppressive drugs. When the sample size is small , the more sta ble internal reference may facilitate the identification of inter-groups difference.Key words : Takayasu arteritis ; real-time polymerase chain reaction ; RNA stability ; selection of reference gene88基础医学与临床Basic&Clinical Medicine2021.41(1)反转录实时荧光定量聚合酶链式反应(reverse quantitative real-time polymerase chain reaction,RT-qPCR)是目前分析基因表达水平的黄金标准,却经常表现出重复性欠佳的问题,选取合适的内参基因有助于改善这一情况[1]。
中国防痨杂志 2021年 4 月第 43卷第 4 期C h i n J A m i t u b e r c,April 2021, Vol. 43,N〇. 4•413••短篇论著•抗结核药品导致严重骨髓抑制一例并文献复习刘鑫郭乐仵倩红【摘要】抗结核药品是引起骨髓抑制的危险因素,严重者可导致患者死亡。
本文作者报道了1例与使用抗结 核药品相关的骨髓抑制并导致死亡的患者。
患者为女性,24岁,以“发现双侧颈部包块1个月余,经外院穿刺病理 诊断为颈部淋巴结结核”住院治疗.入院后颈部包块脓液经结核分枝杆菌药物敏感性试验(M T frD S T)证实为耐多 药结核病,入院常规行血液检查未见异常后给予初治抗结核治疗(3H-R-Z-E/12H-R),全血细胞从最初的仅粒系细 胞轻度降低,逐步发展至重度降低,最终红系、粒系、巨核系细胞均严重降低,从而继发感染性休克;患者被积极抢 救后失败.最终死亡。
作者通过复习相关文献.讨论了抗结核药品引起骨髓抑制的发病机制、临床表现、诊断及治 疗方法,提醒临床医生了解抗结核药品引起的血液系统不良反应及其严重性,尽早明确原因并采取必要的干预措施。
【关键词】抗结核药;结核,抗多种药物性;骨髓疾病;死亡;综述文献(主题)A case of severe myelosuppression caused by anti-tuberculosis drugs and literature review on this issue LIU X i n,GUO L e*WJJ Q ian-hong. Shaanxi Provincial Tuberculosis Prevention and Control Institute* X i1 an 710100 <,ChinaCorresponding author:W U Qian-hong, Email :15902969^31 @126. com【Abstract】A nti-tuberculosis drug is a risk factor for causing bone m arrow suppression,which can lead to death in vSevere cases. T his article reported a patient who got bone m arrow suppression caused by the use of antituberculosis drugs and died. T he authors also did a literature review regarding to this issue. T he patient was female, 24 years old. She was found to have bilateral neck masses for m ore than 1m onth and diagnosed as cervical lymph node tuberculosis by puncture biopsy in another hospital before she came to our hospital. A fter adm ission,she was confirmed as m ultidrug-resistant tuberculosis (M DR-TB) by Mycobacterium tuberculosis drug susceptible test (M T&-DST) using the pus obtained from her neck mass. T he routine blood examinations were performed for her and the results w ere norm al, and then the initial treatm ent regimen of anti-tuberculosis (3H-R-Z-E/12H-R) was given to this patient. A fter she received the treatm ent, the granulocyte cells were starting to drop slightly and gradually progressed to severe reduction,and then further progressed to severe reductions of the erythroid,granulocyte and m egakaryocyte cells. T he patient eventually died of infectious shock and failure to resuscitate. By reviewing the relevant publications, the authors did discussions on pathogenesis, clinical m anifestations, diagnosis and treatm ent of bone m arrow suppression caused by anti-tuberculosis drugs in this article, aimed to remind clinicians to understand the adverse reactions in blood system caused by anti-tuberculosis drugs and their severity,and to emphasize that the causes of the abnormal blood test results should be identified as soon as possible and the effective intervention m easures should be taken soon.【Key words】A ntitubercular agents; Tuberculosis,m uhidrug-resistant; Bone m arrow diseases;D eath;Review literature as topic骨髓抑制是抗结核药品治疗中经常发生的且严重的药 物不良反应(adverse drug reaction,A D R),相关文献报道发 生率在3. 3%〜10%[11。
澳洲茄边碱诱导胶质母细胞瘤U251细胞凋亡的机制研究赵祎博;张琳;傅若秋;曹梓珍;陈翔;陈剑鸿【期刊名称】《中国药业》【年(卷),期】2024(33)1【摘要】目的探讨澳洲茄边碱(SM)对胶质母细胞瘤U251细胞凋亡的影响及作用机制。
方法用SM(0,2,4,6,8μmol/L)处理细胞24 h,即溶剂对照组和SM 1组、2组、3组、4组。
采用CCK-8法和克隆形成实验分别检测细胞活力和增殖能力,并计算细胞存活率和克隆形成率;采用Annexin V-FITC/PI双染色法及流式细胞术检测细胞凋亡情况,并计算细胞凋亡率;采用蛋白免疫印迹(Western blot)法检测凋亡相关蛋白表达水平;采用2’,7’-二氯荧光素二乙酸酯(DCFH-DA)和JC-1荧光探针分别检测U251细胞中活性氧水平和线粒体膜电位。
结果与溶剂对照组比较,U251细胞存活率和克隆形成率随SM浓度的增加均呈降低趋势(P <0.05),细胞凋亡率呈升高趋势(P <0.01);经SM处理后,细胞剪切多聚腺苷二磷酸核糖聚合酶、剪切胱天蛋白酶3蛋白表达水平及细胞内活性氧水平均呈升高趋势(P <0.05),线粒体膜电位呈降低趋势(P <0.01)。
结论 SM可能通过激活线粒体介导的细胞凋亡通路,从而抑制胶质母细胞瘤U251细胞活性。
【总页数】5页(P35-39)【作者】赵祎博;张琳;傅若秋;曹梓珍;陈翔;陈剑鸿【作者单位】中国人民解放军陆军特色医学中心【正文语种】中文【中图分类】R932;R285.5【相关文献】1.澳洲茄碱诱导肺癌细胞株H446凋亡及其机制探讨2.澳洲茄胺诱导肠癌 HCT-116细胞凋亡的实验研究3.澳洲茄碱诱导胆管癌QBC939细胞凋亡及作用机制4.澳洲茄边碱诱导食管癌细胞KYSE150凋亡及其机制研究5.高效液相色谱法测定龙葵中澳洲茄碱与澳洲茄边碱含量的研究因版权原因,仅展示原文概要,查看原文内容请购买。
[基金项目]贵州省科技计划项目(黔科合支撑[2020]4Y156号)。
△杨青斌,李进 贵州中医药大学2021级中西医结合临床专业在读硕士研究生△司维群,刘静 贵州中医药大学2022级中西医结合临床专业在读硕士研究生△吴佳龙 贵州中医药大学2023级中西医结合临床专业在读硕士研究生▲通讯作者利用网络药理学和分子对接技术分析“猫爪草-冬凌草”对肝癌的治疗作用机制杨青斌1△ 徐 静2▲ 李 进1△ 司维群1△ 刘 静1△ 吴佳龙1△1.贵州中医药大学,贵州贵阳 550000;2.贵州中医药大学第二附属医院肿瘤科,贵州贵阳 550000[摘要]目的 利用网络药理学和分子对接技术对猫爪草与冬凌草进行分析,探讨其治疗原发性肝癌的作用机制。
方法 基于对中药系统药理学数据库和分析平台(TCMSP)与传统中药百科全书(ETCM)数据库的检索,掌握有关药物的有效成分与其作用靶点,借助有机小分子生物活性数据库(PubChem)以及小分子药物预测作用靶点平台(Swiss Target Prediction)的支持下,收集一系列肝癌的靶点。
参照蛋白互作数据库(STRING)进行药物与肝癌的蛋白互作(PPI)网络的构建。
在将网络系统应用于探索药物的抗癌过程和作用机理的同时,结合Cytoscope3.9.1软件成功构建“成分-靶点-通路”体系,并借助Metascape 功能实现对共同靶点和京都基因与基因组百科全书(KEGG)通路的富集处理。
此外,利用分子模拟软件AutoDock 展开活性成分与关键靶点间分子对接情况的探究,获取所需的系列研究成果。
结果 筛选出冬凌草与猫爪草的有效活性成分分别有23、9个;两味药的药物靶点总共1020个,共同交集靶点299个;药物和肿瘤疾病共有26个常见靶点。
KEGG 通路的富集显示,药物靶点涉及的通路主要有癌症通路、脂质与动脉粥样硬化通路、PI3K-Akt 信号通路等。
结论 猫爪草与冬凌草相须配伍,具有多成分、多靶点、多通路的作用特点,能协同发挥抗肝癌作用,为后续机制研究提供了切实可行的参考依据。