HSV-2糖蛋白D在昆虫-杆状病毒表达系统中的表达及免疫原性分析

目的：在昆虫细胞中表达2型单纯疱疹病毒（HSV-2）糖蛋白D（gD2）胞外区基因,检测其免疫原性。方法：以HSV-2病毒基因组为模板,PCR扩增得到gD2片段,构建至杆状病毒质粒Bacmind中,转染sf9细胞,包装重组杆状病毒,收集后连续感染sf9细胞,收获第4代重组杆状病毒（P4）,通过Western blotting法鉴定蛋白表达情况,采用空斑实验检测重组病毒滴度,将P4代重组病毒作为种子大量感染sf9细胞,上清经镍柱亲和层析进行纯化,将纯化后的蛋白在第0、2和4周免疫BALB/c小鼠（gD2组）,以PBS作为阴性对照（PBS组）,ELISA检测小鼠血清中gD2特异性IgG滴度。结果：PCR鉴定和DNA测序,重组表达质粒gD2-Bacmind构建正确,空斑实验检测重组病毒滴度为2.0×10⁹ pfu·mL^-1,纯化的gD2重组蛋白在相对分子质量37000处出现目标条带,纯度达90%以上。第6周gD2组小鼠免疫血清中gD2特异性IgG抗体滴度Log10平均值达到4.34,与PBS组比较差异有统计学意义（P<0.01）。结论：利用昆虫-杆状病毒表达系统表达的gD2胞外区蛋白具有良好的免疫原性,可作为HSV-2疫苗的候选。     

腺病毒介导 HSV-2 gD 基因修饰的树突状细胞疫苗制备

目的：生殖器疱疹尚无彻底治愈的方法。研制有效的生殖器疱疹病毒疫苗是预防和治疗HSV-2感染的关键,文中探讨制备腺病毒介导的HSV-2 gD基因修饰的树突状细胞（ dendritic cell , DC）疫苗的可行性。方法将HSV-2 gD蛋白基因克隆到质粒载体Shuttle-2,重组质粒酶切鉴定、测序鉴定后构建重组腺病毒pAdeno-HSV-2 gD。分离小鼠骨髓DC细胞, pAdeno-HSV-2 gD转染DC细胞后用流式细胞术检测DC表型,用免疫组化法、RT-PCR、SDS-PAGE和Western blot 方法检测HSV-2 gD的表达情况。结果以HSV-2病毒DNA为模板,采用gD基因引物扩增出相应的目的片段。琼脂糖凝胶电泳显示,PCR产物gD基因同预期的大小一致（1182 bp）。 pAdeno-gD DNA用脂质体法转染293细胞10 d,反复冻融获得pAdeno-HSV-2 gD重组腺病毒,活性为4×1010 IU／mL。流式细胞仪检测结果显示：成熟DC和腺病毒感染后DC,CD40含量为（74．2±3．9）％、（81．3±3．1）％,CD80含量为（73．9±4．1）％、（80．4±2．9）％,CD86含量为（76．1±5．5）％、（83．7±3．9）％,均较不成熟DC的CD40、CD80、CD86含量[（9．7±0．5）％、（7．5±1．2）％、（5．2±1．1）％]升高（P＜0．01）。 pAdeno-HSV-2 gD-DC和细胞因子刺激诱导成熟的DC细胞表面分子表达差异无统计学意义（P＞0．05）。 RT-PCR、免疫组织化学方法证明HSV-2 gD能在DC细胞内表达,表达产物的SDS-PAGE和Western blot分析发现,在相对分子质量为43000处有外源蛋白表达,与预期蛋白条带一致。结论成功制备了pAdeno-HSV-2 gD-DC疫苗。     

HSV-2DNA疫苗诱导小鼠免疫应答研究

目的探讨含有单纯疱疹病毒Ⅱ型(HSV-2)糖蛋白D全基因序列的重组质粒作为DNA疫苗的可能性。方法采用PCR方法获得HSV-2gD片段，构建含HSV-gD片段的重组质粒pcDNA3-gD。重组质粒作为DNA疫苗免疫小鼠，观察其对小鼠免疫效果及保护作用。结果重组质粒pcDNA3-gD免疫小鼠后可产生特异性抗体，可保护小鼠免受HSV-2的致死性攻击，存活率达75％。结论重组质粒pcDNA3-gD可诱导小鼠产生特异性免疫反应，可以作为HSV的候选DNA疫苗。     

单纯疱疹病毒2型感染细胞蛋白27重组真核表达质粒的构建及表达

目的构建单纯疱疹病毒2型(HSV-2)感染细胞蛋白27(ICP27)基因与pcDNA3.1(+)真核表达质粒的重组质粒pcDNA3.1(+)/ICP27。方法通过RT-PCR方法从HSV-2培养物中提取RNA制备ICP27的编码基因UL54DNA,将其与载体pcDNA3.1(+)连接。通过双酶切和测序鉴定重组质粒是否构建成功,Western blot法鉴定重组质粒在真核细胞COS-7中表达。结果重组质粒pcDNA3.1(+)/ICP27构建成功,可在COS-7中表达。结论成功构建了可在真核细胞内表达的pcDNA3.1(+)/ICP27重组质粒,为下一步研究该重组质粒作为DNA疫苗的免疫学效应奠定了基础。     

单纯疱疹病毒Ⅰ型DNA疫苗的构建

目的 构建表达单纯疱疹病毒1型糖蛋白D的DNA疫苗。方法 采用聚合酶链式反应（PCR），从HSV-1基因组中扩增出gD基因，插入中间载体pGEM-T，然后克隆入真核表达载体pcDNA3.1，构建重组质粒pLy-D，经部分测序和限制性内切酶分析证实，将pLy-D转染Cos-7细胞，并肌肉接种ICR小鼠。用免疫组化和ELISA方法分别检测gD蛋白表达及小鼠血清中的特异性抗体。结果 转染的Cos-7细胞中有gD蛋白的表达；经三次肌肉免疫接种的小鼠血清中有特异性HSV-1抗体产生，结论 本研究构建的重组质粒pLy-D能够在哺乳动物细胞中表达目的蛋白，免疫接种后可以诱导动物产生免疫反应。     

单纯疱疹病毒Ⅰ型糖蛋白D核酸疫苗的构建及初步研究

目的：构建、制备Ⅰ型单纯疱疹病毒糖蛋白D重组质粒DNA疫苗,初步检测其诱导机体产生体液免疫应答的效果,为HSV-1新型疫苗奠定基础。方法：用PCR的方法从HSV－1病毒基因组中扩增糖蛋白D（glycoprotein D,gD)基因,利用基因重组技术构建重组质粒;将重组质粒体外转染真核细胞COS－7,Western blotting检测表达产物;于BALB／C小鼠后腿胫前肌注射免疫,0、2周名免疫1次,100μg/次。初次免疫后0,2,4,6周眼眶采血,ELISA间接法检测抗体。结果：重组质粒酶切出相应大小片段,经测序证实为HSV－1gD序列。Western blotting证实能够在体外真核细胞中表达。免疫小鼠后,产生特异性抗体,抗体滴度1：2000。结论：HSV-1gD重组质粒DNA有可能作为HSV－1的DNA疫苗,用于防治HSV－1感染及其相关疾病。     

E型沙眼衣原体MOMP基因重组质粒的构建与表达

目的：构建E型沙眼衣原体（Ct）主要外膜蛋白（MOMP）基因重组真核表达质粒pVAX1-MOMP,为探索安全的E型CtDNA疫苗奠定基础。方法：根据Genebank中E型Ct MOMP基因序列设计引物,用高保真PCR方法从E型Ct基因组DNA中扩增得到约1.1kb的MOMP片段，克隆至pcDNAⅡ载体,测序后亚克隆至表达载体pVAX1，构建卡那霉素抗性真核重组表达质粒pVAX1-MOMP,并以重组质粒转染COS-1细胞进行表达,用Western blotting方法鉴定表达产物。结果：从E型Ct基因组DNA中扩增出特异的MOMP基因片段,酶切鉴定及DNA序列测定证实pVAX1-MOMP重组质粒构建正确,能在COS-1细胞内表达,表达产物能与抗MOMP单克隆抗体特异性结合。结论：成功构建E型沙眼衣原体MOMP真核表达质粒pVAX1-MOMP，并在真核细胞内获得表达。     

单纯疱疹病毒2型泛素化新型DNA疫苗构建

目的构建单纯疱疹病毒2型(HSV-2)早期表达蛋白感染细胞蛋白(ICP)27强制泛素化的DNA疫苗表达质粒。方法利用聚合酶链反应(PCR)技术从人基因组DNA和HSV-2基因组中分别扩增出泛素全长基因和HSV-2、ICP27 377-459,PCR鉴定后酶切连接获得融合基因片段,插入真核表达质粒pcDNA3．1载体中,构建出重组真核表达质粒Ub-ICP-pcDNA3．1,并对其进行测序鉴定。结果构建的重组质粒Ub-ICP-pcDNA3．1克隆基因插入方向正确,与预期序列完全一致。结论成功构建了HSV-2早期表达蛋白ICP27强制泛素化DNA疫苗。     

单纯疱疹病毒DNA疫苗的初步研究

目的：探讨含有HSV—2糖蛋白D全基因序列的重组质粒作为DNA疫苗的可能性。方法：采用PCR方法获得HSV—2gD片段，构建含HSV—gD片段的重组质粒pcDNA3-gD。重组质效作为DNA疫苗免疫小鼠，观察其对小鼠的免疫效果及保护作用。结果：重组质粒pcDNA3-gD免疫小鼠后产生特异性抗体；可保护小鼠免受HSV—2的致死性攻击(存活率达75％)。结论：重组质粒pcDNA3-gD能诱导小鼠产生特异性免疫反应，可以作为HSV的候选DNA疫苗。     

空肠弯曲菌Pen:19 cadF基因真核表达重组质粒的构建与表达

目的：构建空肠弯曲菌Pen：19cadF基因真核表达重组质粒，并证实其能在COS-7细胞中表达。方法：以含有KpnI和EcoRI酶切位点的同一对引物行PCR反应，获得空肠弯曲菌Pen：2、Pen：8、Pen：19和Pen：21cadF基因DNA片段。并选择与格林-巴利综合征最为相关的空肠弯曲菌Pen：19PCR产物为目的基因片段，插入到真核表达载体pcDNA3．1（＋）中，以构建重组质粒pcDNA3．1（＋）-cadF。重组质粒经双酶切、PCR反应鉴定和DNA双向测序确认后转染至COS-7细胞。运用RT-PCR方法检测重组质粒在细胞mRNA水平的表达。结果：双酶切反应、PCR反应和DNA双向测序证实cadF基因插入成功。采用RT-PCR方法能够从重组质粒转染的COS-7细胞中扩增出与目的基因大小一致的DNA片段。结论：空肠弯曲菌Pen：19cadF基因真核表达重组质粒pcDNA3．1（＋）-cadF构建成功，并能在COS-7细胞中表达。为空肠弯曲菌DNA疫苗的研究奠定了良好的基础。     

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.