miR-503靶向调控CXCL9抑制黑色素瘤细胞的迁移及侵袭

目的:研究miR-503对人皮肤黑色素瘤细胞A375迁移、侵袭能力的影响及相关机制.方法:实时荧光定量PCR(real-time quantitative PCR,qRT-PCR)检测黑色素瘤组织及细胞系中miR-503的表达水平;将miR-503模拟物(miR-503 mimics)或miR-503抑制物(miR-503 inhibitors)瞬时转染A375细胞,Transwell实验检测转染后细胞迁移及侵袭能力的变化;生物信息学预测miR-503与CXCL9的结合位点,双荧光素酶报告基因实验检测其靶向结合关系;将CXCL9单独转染或与miR-503共转染A375细胞后,检测细胞迁移及侵袭能力的变化.结果:黑色素瘤组织中miR-503的表达明显低于癌旁组织(t=6.602,P=0.000),且黑色素瘤细胞(A375、SK-MEL-1及SK-MEL-5)中miR-503的表达也均明显低于人表皮黑色素细胞HEM(F=19.445,P=0.000);A375细胞转染miR-503 mimics后迁移及侵袭能力明显受到抑制(P=0.017,P=0.049),而转染miR-503 inhibitors后迁移及侵袭能力明显增强(P=0.004,P=0.000);CXCL9是miR-503的直接靶基因;CXCL9能促进A375细胞的迁移和侵袭(P=0.000,P=-0.009),但其作用效果能被miR-503逆转.结论:miR-503通过靶向调控CXCL9而抑制黑色素瘤细胞的迁移及侵袭.     

MiR-338-3p通过靶向WNK1影响食管癌细胞增殖、迁移、侵袭及凋亡的机制研究

目的探讨miR-338-3p影响食管癌细胞增殖、迁移、侵袭及凋亡的分子机制及其对WNK1的靶向调控作用。方法体外培养人正常食管上皮细胞株Het-1A与人食管癌细胞Eca-109、EC-1、EC9706,采用q RT-PCR与Western blot分别检测miR-338-3p、WNK1的表达水平;以EC9706细胞为研究对象,分别将miR-con、miR-338-3p mimics、si-con、si-WNK1、miR-338-3p mimics与pc DNA、miR-338-3p mimics与pc DNA-WNK1转染至EC9706细胞;MTT法检测细胞增殖、流式细胞术检测细胞凋亡、Transwell小室实验检测迁移及侵袭能力;双荧光素酶报告实验检测miR-338-3p与WNK1的靶向关系。结果与Het-1A比较,食管癌细胞Eca-109、EC-1、EC9706中miR-338-3p的表达显著下调(P0.05),WNK1 m RNA及蛋白表达显著上调(P0.05);转染miR-338-3p mimics或si-WNK1可明显降低EC9706细胞的活力、迁移及侵袭细胞数(P0.05),增加EC9706细胞的凋亡率(P0.05);双荧光素酶报告实验证实miR-338-3靶向结合WNK1;共转染miR-338-3p mimics与pc DNA-WNK1可明显逆转转染miR-338-3p mimics对细胞增殖、迁移、侵袭及凋亡的作用。结论 miR-338-3p可靶向下调食管癌中的WNK1,进而抑制食管癌细胞的增殖、迁移及侵袭,和诱导细胞凋亡。     

miR-200b靶向VEGF抑制肺癌细胞侵袭

目的 探讨miR-200b是否通过靶向调控血管内皮生长因子(VEGF)抑制人非小细胞肺癌细胞侵袭,以揭示miR-200b的抑瘤机制。方法运用qRT-PCR检测miR-200b在非小细胞肺癌和癌旁正常肺组织中的表达;将非小细胞肺癌A549细胞分为miR-200b mimics组、miR-200b inhibitors组、scramble组、VEGF-siRNA组和control-siRNA组,分别将miR-200b mimics、miR-200b inhibitors、scramble、VEGF-siRNA、control-siRNA转染于A549细胞;采用Western blot检测A549细胞中VEGF蛋白表达,采用Transwell侵袭实验分别检测A549细胞侵袭能力。结果qRT-PCR检测结果显示,miR-200b在A549、16HBE细胞的表达分别为0.704±0.053、1.582±0.071,两者比较,差异有显著性(P<0.01);Western blot结果显示,外源过表达miR-200b或沉默VEGF能明显下调A549细胞中VEGF蛋白的表达水平;Transwell侵袭实验显示,转染miR-200b mimics或沉默VEGF 36 h后穿过基底膜的细胞数分别为(127±6)和(136±8),与对照组(189±14)比较能明显抑制A549细胞的穿膜能力(P<0.05),而转染miR-200b inhibitors可拮抗VEGF-siRNA对A549细胞的侵袭抑制作用。结论miR-200b通过靶向调控VEGF抑制人非小细胞肺癌细胞侵袭。     

miR-375逆转MCF-7/Adr耐药性的功能研究

目的 研究乳腺癌耐阿霉素细胞株MCF-7/Adr高表达miR-375后对阿霉素敏感性的影响.方法 将miR-375模拟物(miR-375 mimics)和mimics negative control(NC)分别转染MCF-7/Adr;阿霉素处理后用WST-1法检测耐阿霉素细胞的增殖情况;流式细胞仪检测细胞周期和凋亡;细胞划痕实验、transwell迁移、侵袭实验检测MCF-7/Adr细胞的迁移和侵袭能力.结果 在MCF-7/Adr细胞中高表达miR-375可以提高其对阿霉素的敏感性并促进其凋亡;高表达miR-375的MCF-7/Adr细胞周期阻滞在G1期;转染miR-375后对MCF-7/Adr细胞的迁移、侵袭能力有抑制作用.结论 MCF-7/Adr细胞中高表达miR-375可以增加其对阿霉素的敏感性.     

miR-133a靶向Transgelin2对体内外结直肠癌DLD1细胞侵袭迁移的影响

目的探讨microRNA-133a(miR-133a)/Transgelin2轴对结直肠癌细胞DLD1侵袭迁移的影响,为结直肠癌靶向治疗寻找潜在靶点。方法将pSicoR-miR-133a稳定转染DLD1细胞,通过体内外实验,用qRT-PCR、划痕实验、Western blot检测相应细胞侵袭、迁移能力和miR-133a/Transgelin2的变化。结果体外实验:pSicoRmiR-133a使miR-133a过表达并明显抑制Transgelin2转录,稳定转染miR-133a组与对照组相比较,同时miR-133a、Transgelin2转录水平和蛋白表达均具有统计学意义(P 0.05),转染miR-133a的DLD1细胞侵袭(P=0.003)、迁移(P=0.002)能力明显降低。体内实验:转染miR-133a组肿瘤体积比对照组明显减小(P=0.000),肿瘤组织内miR-133a、Transgelin2转录量明显降低(P=0.000),Transgelin2蛋白表达强度在miR-133a组内也明显减少(P0.05)。结论 miR-133a靶向负性调控Transgelin2,对结直肠癌的侵袭、迁移具有明显抑制作用,miR-133a/Transgelin2可成为结直肠癌治疗的潜在靶点。     

miR-15b在恶性黑色素瘤A375细胞中的表达及其对细胞转移和侵袭的影响

目的 研究微小RNA-15b（microRNA-15b,miR-15b）在恶性黑色素瘤A375细胞中的表达,以及miR-15b对恶性黑色素瘤细胞转移和侵袭能力的影响。方法 应用荧光实时定量聚合酶链反应（quantitative real-time polymerase chain reaction, qRT-PCR）方法检测恶性黑色素瘤A375细胞与正常黑素细胞HM中miR-15b的表达水平。沉默恶性黑色素瘤A375细胞中miR-15b的表达后,应用划痕实验检测miR-15b对恶性黑色素瘤A375细胞迁移距离的影响,应用Transwell实验检测miR-15b对恶性黑色素瘤A375细胞转移和侵袭能力的影响。结果 miR-15b恶性黑色素瘤A375细胞中的表达水平显著高于正常黑素细胞。沉默恶性黑色素瘤细胞中miR-15b的表达后,细胞迁移距离、细胞转移和侵袭能力均受到显著抑制。结论 miR-15b在恶性黑色素瘤A375细胞中表达显著升高并可促进恶性黑色素瘤A375细胞转移和侵袭。     

miR-367通过靶向调控TET2对子宫内膜癌细胞增殖、迁移及侵袭的影响

目的探讨miR-367通过靶向调控10-11异位的甲基胞嘧啶双加氧酶2(TET2)对子宫内膜癌细胞增殖、迁移及侵袭的影响。 方法将人子宫内膜癌HEC-1A细胞分为5组:空白组(NG)、阴性转染组(mimics NC)、miR-367过表达组(miR-367 mimics)、inhibitor NC组、miR-367 inhibitor组。qRT-PCR检测HEC-1A细胞中TET2 mRNA、miR-367表达水平;MTT法检测细胞增殖情况;Transwell法检测细胞侵袭和迁移能力;TargetScan数据库预测miR-367的靶基因并用双荧光素酶报告基因实验加以验证;Western blotting检测TET2、c-myc、cyclin D1、MMP-2、MMP-9蛋白表达水平。 结果与NG、mimics NC组相比,miR-367 mimics组HEC-1A细胞TET2 mRNA表达水平下降(P < 0.05),miR-367表达水平升高,24、48 h细胞存活率上升,侵袭、迁移细胞数增加(P < 0.05),TET2蛋白表达水平降低(P < 0.05),MMP-2、MMP-9、c-myc、cyclin D1蛋白表达水平升高(P < 0.05)。与NG、inhibitor NC组相比,miR-367 inhibitor组HEC-1A细胞TET2 mRNA表达水平升高(P < 0.05),miR-367表达水平下降,24、48 h细胞存活率降低,侵袭、迁移细胞数减少,TET2蛋白表达水平升高(P < 0.05),MMP-2、MMP-9、c-myc、cyclin D1蛋白表达水平降低(P < 0.05)。TargetScan数据库预测显示miR-367是TET2潜在靶基因。荧光素酶报告实验结果显示,miR-367 mimics+WT组HEC-1A细胞荧光素酶活性低于miR-367 NC+WT组(P < 0.05),miR-367 NC+MUT组与miR-367 mimics+MUT组荧光素酶活性差异无统计学意义(P>0.05)。 结论miR-367过表达可能通过靶向抑制TET2促进子宫内膜癌HEC-1A细胞增殖、迁移和侵袭。     

miR-584对人胶质母细胞瘤侵袭和迁移能力的影响

目的探讨miR-584对人胶质母细胞瘤U251细胞侵袭和迁移能力的影响。方法将化学合成的miR-584-3p在脂质体Lipofectamine 2000的介导下,瞬时转染人胶质母细胞瘤U251,细胞分为空白对照组(无转染,其他条件相同)、mimics NC组(转染miR-584-3p mimics阴性对照序列)、miR-584-3p mimics组(转染miR-584-3p mimics)、inhibitor NC组(转染miR-584-3p inhibitor阴性对照序列)和miR-584-3p inhibitor组(转染miR-584-3p inhibitor)。Real-time PCR法检测细胞中miR-584-3p的表达水平;CCK-8法检测细胞增殖能力;划痕实验和Transw ell小室实验检测细胞的迁移和侵袭能力。结果与空白对照组和mimics NC组相比,miR-584-3p mimics组的miR-584-3p表达上调约100倍(P<0.05),细胞增殖能力无明显差异(P>0.05),细胞侵袭和迁移能力明显下降(P<0.05);与空白对照组和inhibitor NC组相比,miR-584-3p inhibitor组的miR-584-3p表达下调至空白对照组的5%(P<0.05),细胞增殖能力无明显差异(P>0.05),细胞侵袭和迁移能力显著增强(P<0.05)。结论 miR-584-3p mimics转染抑制了U251细胞的侵袭和迁移能力;miR-584-3p inhibitor转染能增强U251细胞的侵袭和迁移能力。     

miR-1-3p靶向TNKS2抑制宫颈癌细胞增殖、迁移和侵袭

目的探讨miR-1-3p靶向端锚聚合酶2(TNKS2)基因对宫颈癌Ca-Ski细胞增殖、迁移及侵袭的调控作用。方法采用实时荧光定量聚合酶链式反应(q RT-PCR)检测正常宫颈鳞状细胞及不同宫颈癌细胞中miR-1-3p的表达情况,选取宫颈癌Ca-Ski细胞进行转染实验,利用脂质体转染法将miR-1-3p模拟物(miR-1-3p mimics)及模拟物对照(NC mimics)分别转染至Ca-Ski细胞,分别记为miR-1-3p mimics组和miR-NC组,将未经转染处理的Ca-Ski细胞记为Blank组(空白对照)。qRT-PCR检测各组Ca-Ski细胞中miR-1-3p的表达,噻唑蓝比色法(MTT)检测细胞增殖能力,Transwell实验检测细胞迁移和侵袭能力,通过生物信息学软件分析和双荧光素酶报告基因实验验证miR-1-3p和TNKS2靶向关系,蛋白免疫印迹法(Western blot)检测各组细胞中TNKS2蛋白表达。结果 miR-1-3p在宫颈癌细胞中的表达显著低于正常宫颈鳞状细胞(P0.05)。转染miR-1-3p mimics 48 h后,Ca-Ski细胞中miR-1-3p的表达显著升高(P0.05)。过表达miR-1-3p能够明显抑制Ca-Ski细胞的增殖、迁移和侵袭能力(P0.05)。生物信息学软件分析显示miR-1-3p和TNKS2 3’UTR存在结合位点,双荧光素酶报告基因实验显示TNKS2是miR-1-3p的靶基因,Western blot检测结果显示miR-1-3p可抑制TNKS2的表达。结论 miR-1-3p可靶向TNKS2基因抑制宫颈癌Ca-Ski细胞增殖、迁移及侵袭。     

反义miR-18a对乳腺癌细胞侵袭迁移的影响

目的：分析miR-18a在乳腺癌组织中的表达情况;体外研究miR-18a反义寡核酸（antisense oligonucleotide,ASO）对乳腺癌细胞侵袭和迁移的影响。方法：运用荧光定量PCR检测108例乳腺癌组织及对应癌旁乳腺组织中miR-18a的表达;通过miR-18a ASO降低乳腺癌细胞中miR-18a的表达,采用Transwell实验和划痕实验观察miR-18a ASO对乳腺癌细胞侵袭和迁移能力的影响,同时运用Western blot的方法检测侵袭相关蛋白的表达变化。结果：在108例乳腺癌病例中,50.93%（55/108）的乳腺癌组织miR-18a表达明显高于对应正常组织（t=28.68,P=0.000）;与空白对照组和转染随机ASO组相比,miR-18a ASO可以明显降低miR-18a的表达（F=321.67,P=0.001;F=563.28,P=0.000）;Transwell实验和划痕实验结果显示转染miR-18a ASO后,乳腺癌细胞的侵袭迁移能力明显下降（P=0.000）,同时相关侵袭蛋白基质金属蛋白酶（matrix metalloproteinase,MMP）2和MMP9表达下降（P=0.000）。结论：miR-18a在乳腺癌组织中表达上调,降低miR-18a的表达,可有效抑制乳腺癌细胞的侵袭和迁移。miR-18a有可能成为乳腺癌侵袭转移调控的新靶点。     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Dr.Zhang Ren''''s Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

Luo Lingjie''''s Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

猪肺磷脂注射液联合经鼻持续气道正压通气对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性的影响

目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P＜0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P＜0.05),PaCO2均随观察时间的延长而降低(P＜0.05).观察组治疗有效率为87.5％,显著高于对照组的70.0％ (P ＜0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P＜0.05),且观察组明显低于对照组(P＜0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.     

Survey and practice of reporting quality of randomized controlled clinical trials on traditional Chinese medicine

Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine （TCM） and results have shown that there is an urgent need for higher quality RCTs on TCM.     

TCM Treatment of Ankylosing Spondylitis by Tonifying the Kidney and Strengthening the Governor Vessel

Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.     

IMPROVING P-gp EXPRESSION IN HUMAN MONONUCLEAR CELLS IN VITRO TRANSFECTED BY MULTIDRUG RESISTANCE-1 mRNA

CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…