诱导型一氧化氮合酶和血管内皮生长因子在舌癌细胞株中的表达

【目的】探讨诱导型一氧化氮合酶（iNOS）和血管内皮生长因子（VEGF）在舌鳞癌细胞株Tca8113中的表达,为进一步研究iNOS和VEGF在舌鳞癌肿瘤血管生成中的作用提供实验基础。【方法】采用逆转录-聚合酶链反应（RT-PCR）法和SP免疫组化方法,对舌鳞癌细胞株Tca8113中iNOS和VEGF mRNA和蛋白表达情况进行检测。【结果】RT-PCR检测到舌鳞癌Tca8113细胞株中iNOS／VEGF mRNA条带明显,SP免疫组化检测到iNOS／VEGF蛋白在舌癌细胞胞浆中呈强阳性表达。【结论】iNOS／VEGF mRNA和蛋白在舌鳞癌Tca8113细胞株中呈高水平表达。     

诱导型一氧化氮合酶和血管内皮生长因子在舌癌细胞株中的表达

 【目的】探讨诱导型一氧化氮合酶（iNOS）和血管内皮生长因子（VEGF）在舌鳞癌细胞株Tca8113中的表达,为进一步研究iNOS和VEGF在舌鳞癌肿瘤血管生成中的作用提供实验基础。【方法】采用逆转录-聚合酶链反应（RT-PCR）法和SP免疫组化方法,对舌鳞癌细胞株Tca8113中iNOS和VEGF mRNA和蛋白表达情况进行检测。【结果】RT-PCR检测到舌鳞癌Tca8113细胞株中iNOS／VEGF mRNA条带明显,SP免疫组化检测到iNOS／VEGF蛋白在舌癌细胞胞浆中呈强阳性表达。【结论】iNOS／VEGF mRNA和蛋白在舌鳞癌Tca8113细胞株中呈高水平表达。     

灵芝孢子粉对裸鼠移植性人肝肿瘤血管生成的抑制作用

目的研究灵芝孢子粉对裸鼠移植性人肝肿瘤血管生成的影响，并初步探讨其抑瘤机制。方法建立裸鼠移植性人肝肿瘤模型，采用随机区组设计法随机分为空白对照组、阳性对照组及灵芝孢子粉组，观察裸鼠肿瘤生长。采用苏木精-伊红染色法、SP免疫组织化学法及病理Imagepro Plus5．0彩色图像定量分析法检测裸鼠肿瘤组织中血管内皮生长因子（VEGF）和微血管密度（MVD）。结果灵芝孢子粉为2．1g／kg时，对裸鼠移植瘤的抑制率为57．0％，与空白对照组比较有显著差异（P〈0．01）。镜下观察，灵芝孢子粉组与空白对照组相比；肿瘤坏死组织较多，细胞异型性较小。灵芝孢子粉组VEGF、MVD表达水平较空白对照组有明显下降。结论高浓度及大剂量的灵萝孢子粉对肝肿瘤有明展抑制作用．并能抑制肿瘤新生血管生成．其机制可能与对VEGF表达的抑制有关。     

贝伐珠单抗引起肝癌细胞HepG2的血管内皮生长因子受体2上调表达

目的 探讨贝伐珠单抗对肝癌细胞HepG2 血管内皮生长因子（vascular endothelial growth factor,VEGF） 相关受体的影响。 方法 通过不同浓度的贝伐珠单抗降低培养液中VEGF 来模拟低浓度VEGF 的肿瘤微环境,RT-PCR、ELISA、Western lotting 检测肿瘤细胞VEGF 相关受体表达水平的变化。 结果 细胞培养液的VEGF 浓度大幅度下降（P ＜ 0.05） ;可溶性VEGFR2 的浓度出现了上升（P ＜ 0.05） ;HepG2 细胞VEGF 和VEGFR1 表达水平无明显变化（P ＞ 0.05） ;VEGFR2 表达水平出现了明显的上调（P ＜ 0.05）。 结论 贝伐珠单抗导致了肝癌细胞HepG2 大幅度上调了VEGFR2 的表达。     

卵巢癌组织中血管内皮生长因子的表达及意义

目的检测卵巢癌病变组织中血管内皮生长因子（VEGF）的水平，并探讨其表达水平与临床分期的关系。方法应用双抗体酶联免疫吸附法（EusA）检测正常卵巢（为对照组，10例）和卵巢癌（早期9例；晚期24例）病变组织中VEGF的表达水平。结果正常卵巢组织中VEGF表达水平为（4．26±2,22）ng／L；卵巢癌早期组病变组织VEGF水平（11．42±2．10）ng／L，卵巢癌晚期组病变组织VEGF水平为（12．57±2．32）．g／L，两组比较，差异有显著性（P之0．05）。病理分化程度为高、中、低分化者的VEGF表达水平分别为（10．10±2．29）ng／L、（11．42±2．10）ng／L和（12．60±2．33）．g／L，各组间比较，差异有统计学意义（P〈0．05）。结论VEGF在卵巢癌病变组织中的表达升高，与肿瘤的生长、浸润及转移密切相关，可作为反映卵巢癌生物学行为的指标之一。     

骨肉瘤VEGF表达及VEGF抗体抑制血管生成的实验研究

目的研究血管内皮生长因子（VEGF）表达与骨肉瘤血管生成和预后的关系，以及VEGF抗体抑制骨肉瘤细胞OS-732诱导血管生成的作用和可能机制，为以VEGF为靶点治疗骨肉瘤提供实验依据。方法应用免疫组化和形态计量方法，检测80例骨肉瘤VEGF表达、肿瘤微血管密度（MVD），以及OS-732血管生成相关因子的表达。进一步应用鸡胚绒毛尿囊膜（CAM）模型观察VEGF抗体对OS-732诱导血管生成及肿瘤细胞生长的抑制作用。结果（1）骨肉瘤VEGF表达与肿瘤微血管密度（MVD）及预后密切相关。（2）OS-732表达VEGF和BFGF，而且VEGF表达强度明显高于BFGF，OS-732具有很强的诱导血管生成能力。（3）VEGF抗体干预实验结果显示VEGF抗体组肿瘤区血管密度明显低于PBS对照组，细胞凋亡指数显著高于PBS对照组，而增殖指数两组差异无统计学意义。同时，VEGF抗体组凋亡的微血管内皮细胞增多，增殖期内皮细胞少见。结论VEGF是骨肉瘤重要的血管生成因子，其表达可能是评估骨肉瘤预后的一项有价值的指标。VEGF抗体能够抑制内皮细胞增殖，促进内皮细胞凋亡，显著抑制骨肉瘤OS-732血管形成，并可能通过抑制血管形成而促进肿瘤细胞凋亡，达到抑制瘤细胞生长的作用。该结果提示VEGF可以作为骨肉瘤抗血管生成治疗的潜在靶分子。     

EGF对人舌鳞癌细胞株MMP-3表达的影响

目的：探讨EGF对人舌鳞癌细胞株MMP-3表达的影响及其机制。方法：对体外培养的人舌鳞癌细胞株用重组人表皮生长因子（rhECF）作为刺激因子，采用半定量RT-PCR和Western Blot方法测定癌细胞中MMP-3mRNA和蛋白含量变化。结果：与未处理组相比，用不同浓度（0．1，1，10ng／m1）EGF处理舌鳞癌细胞后MMP-3表达随浓度的增加而增加，酪氨酸激酶抑制剂Genistein（10μg／ml）能够抑制EGF对癌细胞MMP-3表达的诱导作用。结论：EGF通过酪氨酸激酶通路诱导口腔癌细胞MMP-3的表达。     

血清可溶性血管内皮生长因子及其受体与肿瘤的关系

血管内皮生长因子（vascular endothelial growth factor,VEGF）具有维持现有的血管和促进新生血管的形成作用。VEGF与血管内皮细胞表面的血管内皮生长因子受体（vascular endothelial growth factor receptor,VEGFR）结合而起生物学作用。各种肿瘤的发生与VEGF和VEGFR的表达异常有关,导致肿瘤向周围组织侵犯和向远处转移。VEGF和VEGFR在肿瘤组织中的表达和在血液中的含量与肿瘤的发生和转移的关系已有大量报道,因而检测两者的表达或含量对肿瘤的预后判断有重要临床意义。其中的血液中可溶性VEGF和VEGFR含量的检测是一种简便、经济和无创性的检查方法,与其他肿瘤标志物联合检测可提高其诊断价值。     

2种方法制备靶向超声微泡对卵巢肿瘤新生血管评价的意义

目的：比较使用直接连接法和生物素-亲和素桥连接法制备携血管内皮生长因子受体2（VEGFR2）单抗的靶向超声微泡（MBt）对裸鼠卵巢癌移植瘤新生血管的超声显像特点及应用价值。方法建立卵巢癌细胞株SKOV3裸鼠皮下移植瘤模型;使用直接连接法和生物素-亲和素桥连接法分别制备 MBt;将18只裸鼠随机分为两组,先分别注射2种方法制备的 MBt,对2种方法制备的 MBt 进行比较。间隔60 min 之后,再将18只裸鼠注射MBc,对各组内 MBt 与 MBc 进行比较。分别观察2种制备方法的 MBt 及各组内 MBt 与 MBc 的裸鼠卵巢癌移植瘤新生血管的造影特征,并分析时间强度曲线（TIC）相关参数;采用免疫组织化学检测肿瘤组织新生血管 VEGFR2的表达。结果2种方法均成功制备携 VEGFR2单抗的 MBt;生物素-亲和素桥连接法制备的 MBt 峰值强度较直接连接法制备的 MBt 峰值高（P ＜0．05）,且持续时间更长（P ＜0．05）;各组组内 MBt 峰值强度均较 MBc 高（P＜0．05）,持续时间均更长（P ＜0．05）;免疫组织化学显示：裸鼠肿瘤组织内大量条索状棕黄色 VEGFR2阳性表达。结论直接连接法和生物素-亲和素桥连接法制备的携 VEGFR2单抗 MBt 均能实现靶向分子超声显像。但在临床诊断卵巢肿瘤超声显像及微泡稳定性方面,生物素-亲和素桥连接法效果优于直接连接法。     

反义血管内皮生长因子(VEGF)转染体内抑制胆囊癌VEGF及其受体表达的研究

目的:探讨Oligofectamine介导的血管内皮生长因子(VEGF)反义寡核苷酸(ASODN)转染对人胆囊癌GBC-SD细胞裸鼠移植瘤的生长及VEGF、Flt-1和KDR表达的影响。方法:通过裸鼠皮下接种体外培养的人胆囊癌GBC-SD细胞建立人胆囊癌裸鼠移植瘤模型,并将裸鼠分为对照组(A组)、VEGF SODN Oligifectamine组(B组)和VEGF ASODN Oligifectamine组(C组),各组裸鼠在接种后24h内,在接种部位皮下分别缓慢注射200μl磷酸缓冲液(PBS)、VEGF SODN100μg Oligofectamine0.5μl(总体积为200μl)及VEGF ASODN100μg Oligofectamine0.5μl(总体积为200μl),每3天1次,连续治疗5周,观察各组裸鼠的成瘤性、体积及瘤重的变化,并运用免疫组化技术检测胆囊癌裸鼠移植瘤中VEGF、Flt-1和KDR的表达变化。结果:A、B、C组裸鼠2周时的成瘤率分别为87.5%、87.5%和37.5%,C组显著低于A、B组(P<0.05),5周时各组的成瘤率均为100%。各组裸鼠移植瘤5周时的体积和瘤重分别为:A组(253.49±27.11)mm3和(1.96±0.17)g,B组(255.84±26.51)mm3和(1.86±0.21)g,C组(125.45±17.49)mm3和(0.97±0.13)g,C组显著低于A、B组(P<0.05),C组的抑瘤率为(50.79±9.19)%。A、B组裸鼠移植瘤VEGF、Flt-1和KDR的表达均无统计学差异(P>0.05),而C组裸鼠移植瘤VEGF、Flt-1和KDR的表达较A、B组明显减弱(P<0.05)。结论:VEGF ASODN在体内能显著抑制人胆囊癌裸鼠移植瘤的增殖,降低其在裸鼠体内的成瘤性,抑制VEGF、Flt-1和KDR在蛋白水平的表达,抑制裸鼠移植瘤的生长及血管的形成。     

Acupuncture Treatment of Vomiting

CASE HISTORY A female patient, 46 years old, head of the foreign affairs department of a certain university in Beijing, paid her first visit on October 9, 2006, with the chief complaint of vomiting for one month. She got vomiting after meals in early September. Before that, she had discomfortable sensation in the stomach due to angry with others, but she didn't pay much attention. Later, it developed into vomiting after eating. After the vomiting, the discomfort would be relieved, but with slight hypodynamia. She was once diagnosed as having 'neurogenic vomiting'. Having taken some western and Chinese drugs, the above symptoms were a little bit improved, but she would have nausea upon eating and with regurgitation. Because of the fear for vomiting, she did not dare to have food intake, with body weight reduction of 6 kilos in one month.     

Qiu Baoguo''''s Experience in Treating Consumptive Syndromes after Radio-Chemotherapies

Radiotherapy and chemotherapy are the important modern medical therapies for malignant tumors,yet they can also bring about serious local and systemic toxic side reactions so to decrease the patient;'s life quality,manifested by a series of consumptive symptoms.Having engaged in the combined work of Chinese and western medicine for nearly 50 years,the research fellow Qiu Baoguo in Henan Provincial Academy of TCM has developed his unique views on the TCM study of consumptive syndromes.The author of this essay had once the fortune tO follow Dr.Qiu in clinic,and specially would like to introduce in the following Dr.Qiu's experience in treating consumptive syndromes after radio-chemotherapies for patients with malignant tumor.     

Insomnia Due to Deficiency of Both the Heart and Spleen Treated by Acupuncture-Moxibustion and Chinese Tuina

OBJECTIVE: To observe therapeutic effects of the comprehensive therapy of acupuncture-moxibustion and Chinese Tuina for treatment of insomnia due to deficiency of both the heart and spleen. METHODS: 92 cases were divided randomly into the treatment group (treated by acupuncture-moxibustion and Chinese Tuina) and the control group (treated by acupuncture-moxibustion). RESULTS: The therapeutic effect of the treatment group was obviously superior to that of the control group (the CHI2 test showed P < 0.01). CONCLUSIONS: The comprehensive therapy of acupuncture-moxibustion and Chinese Tuina can give marked therapeutic effects for treatment of insomnia due to deficiency of both the heart and spleen.     

Analysis of CK-19,PDX-1,Nestin,Ngn3 in different donor islet purity in rats

Objective: To investigate if there are the CK-19, PDX-1, Nestin, Ngn3 positive cells in the donor islets of different purity in rats. Methods: Thirty male adult SD rats were randomly divided into 3 groups. Islets were isolated using digestion by ductal injection of collagenase. Group Ⅰ (n=10): Separating cell preparations were not purified, Group Ⅱ(n=10): Islet sediment was purified with 25% Ficoll400 ,Group Ⅲ (n=10): Islet sediment was purified with 25% and 11% Ficoll-400. The levels of protein of CK-19, PDX-1, Nestin and Ngn3 were detected by immunohistochemistry and the mRNA of CK-19, PDX-1, Nestin, Ngn3 was amplified by RT-PCR. Results: After two different purification methods applied, three islet preparations of different purities were obtained. The difference of islet purity was significant among various groups (P＜0.05). Compared with group Ⅱ and group Ⅲ,the protein and mRNA of CK-19, PDX-1, Nestin,Ngn3 were both higher in group Ⅰ; group Ⅲ was poorly expressed. Conclusions: The three different islet purity donor islet have different CK-19, PDX-1, Nestin, Ngn3 positive cells within them, indicating that there are some islet stem cells in the purified donor islet.     

A preliminary screening study on the associated proteins in human psoriasis vulgaris by serum proteomics technologies

Objective：To investigate the optimum screening conditions of associated proteins in human psoriasis vulgaris by serum proteomics technique, and to screen the different expression proteins related with psoriasis vulgaris. Methods：Serum samples of peripheral blood were collected from newly diagnosed psoriasis vulgaris patients in the clinic, and 20 matched healthy persons. Serum albumin IgG was removed by filtering with ProteoExtract Albumin/IgG. After comparative proteomics analysis the different protein spots were identified using 2-DE and MS. Results ：Electrophoresis figures with high resolution and reproducibility were obtained. Three different expression proteins were found only in the serum from psoriasis vulgaris patients, while nine other different proteins expressing from healthy volunteers. Conclusion：The protein expression was different in the serum between the psoriasis vulgaris patients and healthy volunteers. It was hoped that we could find the biomarkers related to psoriasis vulgaris by using proteomics.     

A CASE OF HUGE GASTRIC DISOPYROBEZOAR

PYTOBEZOARS are common bezoars in gastrontestinal tract, commonly seen in stomach and mall intestine,1but huge disopyrobezoars are     

Acupuncture Treatment of Chest Bi Syndrome

CASE HISTORY A male,a retired officer of 61 years old,paid his first visit on May 12,2006.The patient stated that 2 weeks before he suddenly got paroxysmal precordial choking pain,with irregular attacks.Each attack would last several seconds to several minutes.The attack was accompanied with heavy oppressed sensation in the precordial region,palpitation,lassitude,and in severe cases,sweating,which was once diagnosed by a hospital as'coronary heart disease'.Recalling the case history,the patient said that several days before he got angry with others because of some affairs in work,and he was not so used to the life pattern since he had just retired from his busy working post.At usual times,he was quick tempered and peevish.In recent days,he had poor appetite,and loose stool.     

Instructions to Contributors

The English edition of Chinese Journal of Integrative Medicine is edited and published by the Chinese Journal of Integrated Traditional and Western Medicine Press.Original scientific papers of advanced clinical and experimental medicine in the field of complementary/alternative medicine or integrative medicine are expected.