Research on the effect of DHA on glucose metabolism in human lung cancer cells and its anti-tumor mechanism

研究背景及目的： 肺癌是人类最常见的恶性肿瘤之一，尽管近年来治疗取得了很大进展，治疗效果仍然较差。癌细胞具有偏向通过糖酵解方式来进行糖代谢获得能量的代谢特征使得肿瘤细胞能够比正常细胞具有更强的葡萄糖代谢能力，为肿瘤细胞的快速增殖与生长提供了能量来源，也使其具备更强的凋亡抵抗能力。天然产物凭借其来源广泛、类型多样、不良反应小，具有开发为化疗药物增效减毒辅助药物的潜力等特点备受关注。双氢青蒿素是青蒿叶中分离的有效抗疟成分，体内代谢活性产物为双氢青蒿素。药物学研究证实青蒿素类药物具有抗疟、抗血吸虫、调节免疫等功能。近年研究发现青蒿素类药物具有抑制乳腺癌、宫颈癌、肝癌及胰腺癌生长作用。然而双氢青蒿素...Abstract BACKGROUND AND OBJECTIVE: Lung cancer is the most common malignant tumor and the leading cause of cancer-related mortality worldwide. Non-small cell lung cancer (NSCLC) is the most common type of lung cancer. Resistance of NSCLC cells to apoptosis is a major obstacle in anticancer treatment. A unique characteristic of many tumor cells is increased glucose uptake and elevated aerobic ...学位：博士后院系专业：生命科学学院_肿瘤学学号：201317007

Influence of Helicobacter pylori infection on autologous DC-CIK maintenance therapy in the advanced gastric cancer patients

目的:对比幽门螺杆菌(HElICObACTEr PylOrI,HP)感染阴性和阳性的晚期胃癌患者接受自体树突状细胞联合细胞因子诱导的杀伤(dEndrITIC CEllS-CyTOkInE InduCEd kIllEr,dC-CIk)细胞维持治疗的疗效差异。方法:收集2010年6月至2012年6月中国人民解放军第174医院肿瘤中心收治的72例晚期胃癌患者,年龄29~90岁,中位年龄56岁,通过胃镜检查进行胃癌确诊并检测HP,分为HP阳性组(45例)及HP阴性组(27例),在接受手术或/和放化疗后,接受2疗程自体dC-CIk维持治疗,比较两组外周血培养的dC分化成熟情况及临床疗效差异。结果:两组dC成熟过程形态变化无差异;HP阳性组dC表面分子Cd83、Cd86表达显著高于HP阴性组(P0.05)。HP阳性组治疗后生活质量评分(kPS)、外周血T细胞亚群(Cd3+、Cd4+、Cd8+)比例较治疗前显著提高(P0.05)。HP阳性组治疗后kPS评分、CEA和CA199表达以及Cd3+和Cd4+T细胞数量等的改善均优于HP阴性组(P0.05)。共随访2年,阳性组患者中位生存期为12.64个月,长于阴性组的11.42个月(P 0.05).Levels of CD83 and CD86 on the surface of DCs were significantly higher in the Hp-positive group than those in the Hp-negative group( P 0.05).In the Hp-positive group,the quality of life KPS score and levels of T lymphocyte markers( CD3+,CD4+and CD8+) were significantly increased( P 0.05).Hp-positive patients had better KPS score,higher levels of CEA and CA199,and more abundant CD3+CD4+T cells than Hp-negative patients( P 0.05).At the end of 2-years follow-up,the median survival time was 12.64 months in the HP-positive group and 11.42 months in the HP-negative group( P < 0.05).Conclusion: Hp infection may help stabilize the tumor size,improve the quality of life,and prolong the survival time in patients with advanced gastric cancer undergoing maintenance therapy with DC-CIK cells.南京军区医学科技创新课题资助(No.10MA068); 厦门市科技计划创新项目资助(No.3502z20134026;No.3502z20144034)~

Video-assisted Thoracoscopic 3D Mode Operation for Solitary Pulmonary Nodules

目的探讨三维胸腔镜手术(3d VIdEO-ASSISTEd THOrACIC SurgEry,3d-VATS治疗孤立性肺结节(SOlITAry PulMOnAry nOdulE,SPn)的效果。方法回顾性分析2013年3月~2014年3月50例SPn的资料,采用3d-VATS手术模式楔形切除结节,根据快速病理结果决定是否行肺叶切除加淋巴结清扫术。统计手术时间(去除快速冰冻时间)、术后24 H引流量、总引流量、引流管拔除时间、淋巴结清扫数及术后并发症等。结果 3d-VATS模式下,50例均行肺结节楔形切除,其中23例病理为恶性,继续行肺癌根治术,手术顺利。肺癌根治术手术时间(62±12)MIn,术中出血量(35±5)Ml,清扫淋巴结(19±3)个,术后24 H引流量(120±20)Ml,术后胸管引流时间(4±1)d,术后住院时间(7±2)d。并发症3例,其中术后肺炎2例,阵发性心房纤颤1例,均治愈。无围手术期死亡。随访2~12个月,平均6.3月。1例术后3个月脑转移,1例术后5个月肺癌复发。结论胸腔镜3d模式下治疗SPn是一种新的选择方式,安全可行,值得推广应用。Objective To evaluate the effects of surgical treatment for solitary pulmonary nodules under thoracoscopic 3D mode(3D-VATS).Methods A total of 50 cases of solitary pulmonary nodules from March 2013 to March 2014 were retrospectively analyzed.Intraoperative wedge pulmonary resection with 3D-VATS was utilized.According to intraoperative pathological findings,lobectomy plus lymph node dissection was given or not.Intraoperative time( minus fast freezing time),drainage volume for 24 h,total drainage volume,drainage tube removal time,number of lymph node dissected,and postoperative complications were recorded.Results Under 3D-VATS mode,50 cases of solitary pulmonary nodules were treated with wedge resection,including 23 cases of malignant pathology receiving radical resection, which was smoothly.The radical resection time( lung lobectomy plus lymphadenectomy) was(62 ± 12) min,the bleeding volume was(35 ± 5) ml,the lymphadenectomy number was 19 ± 3,the drainage volume for 24 h was(120 ± 20) ml,the postoperative chest tube removal time was(4 ± 1) days,and the postoperative hospital stay was(7 ± 2) days.Postoperative complications occurred in 3 cases,including 2 cases of pneumonia and 1 case of paroxysmal atrial fibrillation.No perioperative deaths were observed.All the cases were followed up for 2- 12 months,with an average of 6.3 months.Brain metastases was found in 1 case at the third postoperative month and recurrence of lung cancer was noted in 1 case at the fifth postoperative month.Conclusion Thoracoscopic 3D mode treatment for solitary pulmonary nodules is a new,safe,and feasible alternative and should be widely applied

Combined Use of Thoracoscopy and Laparoscopy in Total Laryngectomy for Cervical Esophageal Carcinoma

目的探讨胸、腹腔镜联合全喉切除治疗颈段食管的可行性和疗效。方法 2009年1月~2014年7月胸、腹腔镜联合全喉切除治疗33例颈段食管癌。胸腔镜下分离食管、腹腔镜下管胃成形、全喉切除、气管永久造口、胃咽吻合术。结果胸部手术时间40~66 MIn,平均53 MIn;腹部手术时间35~51 MIn,平均44 MIn;颈部手术时间128~150 MIn,平均139 MIn。术中出血量130~270 Ml,平均150 Ml。术后住院时间8~14 d,平均12 d。病理均为鳞状细胞癌,其中高分化2例,中分化19例,中-低分化7例,低分化5例。切缘病理学检查无癌组织残留。31例淋巴结转移。并发症:吻合口漏2例,喉返神经损伤3例,肺部感染6例,胃排空障碍2例,吻合口狭窄1例,无死亡病例。33例随访1个月~5年,术后1、3、5年生存率分别为87.9%、54.5%、45.5%。结论颈段食管癌应采取积极的手术治疗,胃咽吻合术是颈段食管癌切除后较为理想的修复手段。Objective To investigate clinical feasibility and efficacy of combined use of thoracoscopy and laparoscopy in total laryngectomy for cervical esophageal carcinoma.Methods Clinical data of 33 patients with cervical esophageal carcinoma undergoing surgical treatment in our department from January 2009 to July 2014 were analyzed retrospectively.The esophagus was separated under thoracoscopy.And laparoscopic gastroplasty,total laryngectomy,tracheal permanent colostomy,and gastric pharyngeal anastomosis were performed.Results The thoracoscopic operation time was 40- 66 min( mean,53 min),the laparoscopic operation time was 35- 51 min( mean,44 min),and the cervical operation time was 128- 150 min( mean,139 min).The blood loss was 130- 270 ml( mean,150 ml).The postoperative hospital stay was 8- 14 d( mean,12 d).Pathological examinations showed squamous cell carcinoma in all the cases,including 2 cases of highly differentiated carcinoma,19 cases of moderately differentiated carcinoma,7 cases of moderately or lowly differentiated carcinoma,and 5 cases of lowly differentiated carcinoma.No residual cancer was found at cutting edges pathologically.Among the 33 cases,lymph node metastasis was found in 31 cases.Complications included 2 cases of anastomotic fistula,3 cases of recurrent laryngeal nerve injury,6 cases of pulmonary infection,2cases of delayed gastric emptying,and 1 case of anastomotic stenosis.There was no death.All the patients were followed up for 1months to 5 years.The survival rates at 1,3,and 5 postoperative year were 87.9%,54.5%,and 45.5%,respectively.Conclusions Cervical esophageal carcinoma should be surgically treated actively.Gastric pharyngeal anastomosis is an ideal option for the repair of cervical esophageal cancer resection

Experimental study on inhibitory effects of Brucea javanica oil emulsion against lung cells

目的:探讨鸦胆子油乳在体外对肺腺癌细胞SPA-A1的抑制作用。方法:本研究通过鸦胆子油乳处理肺腺癌细胞(SPA-A1),采用MTT法观察其对细胞生长的抑制效应;DAPI染色观察肺腺癌细胞SPA-A1凋亡的形态学改变;流式细胞术测定细胞凋亡率及分析细胞周期变化。结果:鸦胆子油乳对肺腺癌细胞SPA-A1的抑制呈剂量和时间依赖性;鸦胆子油乳作用后SPA-A1细胞呈凋亡形态学改变;不同浓度的鸦胆子油乳作用SPA-A1细胞后,可以有效地引起细胞凋亡,且具有明显的剂量依赖性;并可阻滞SPA-A1细胞于G0/G1期。结论:鸦胆子油乳可抑制肺腺癌SPA-A1细胞增殖,诱导肺腺癌SPA-A1细胞凋亡,并使肺腺癌SPA-A1细胞阻滞于G0/G1期。OBJECTIVE To investigate effects of Brucea javanica oil emulsion against proliferation of lung adenocarcinoma SPA-A1 cells in vitro and its mechanisms.METHODS MTT assay was used to determined inhibitory rate of Brucea javanica oil emulsion against proliferation of SPA A1 cells.Apoptosis induced by Brucea javanica oil emulsion was detected by DAPI staining.Apoptotic rate and change in cell cycles were examined by flow cytometry(FCM).RESULTS Brucea javanica oil emulsion significantly inhibited proliferation of SPA-A1 cells in a dose and time dependent manner.Typical morphological changes of apoptosis were observed in SPA-A1 cells with DPAI staining after induced by Brucea javanica oil emulsion.Moreover,Brucea javanica oil emulsion arrested cell cycle at phase G0/G1 and induced apoptosis in a concentration dependent manner.CONCLUSION Brucea javanica oil emulsion can inhibit growth of SPA-A1 cells by reducing proliferation,inducing cell apoptosis and blocking cell cycle.福建省中医药科研项目(编号:Wst201214);; 福建省自然科学基金科技项目(编号:2015J01546);; 河南省卫计委项目(编号:201403087