Gene expression pattern of periphery blood mononuclear cells in patients with active lupus nephritis     

ZHANG Yi-min  YE Ren-gao  WANG Bi-fei  YU Xue-qing  ZHENG Zhi-hua 《园艺学报》2004,20(5):783-787

AIM: To find new gene function associate with active lupus nephritis (LN) through study on the difference in gene expression of peripheral blood mononuclear cells between LN patients and healthy controls by gene chip. METHODS: The CSC-GE-80 chip containing 8 000 spots of cDNAs were used to investigate the difference of the expression. Both the total RNA from peripheral blood mononuclear cells of active LN patients and healthy donors were reversely transcribed to cDNA with the incorporation of fluorescent( cy3 and cy5) labeled dCTP to prepare the hybridization probes. After hybridization, the gene chip was scanned for the fluorescent intensity. The differentially expressed genes were screened. We repeated that in three groups of LN patients and healthy controls, respectively, and only the genes that have differential expression in all three chips were considered associated with LN. RESULTS: 75 genes were identified to be differently expressed in all three groups of LN patients as compared with healthy controls, including 42 up-regulated genes and 33 down-regulated ones. CONCLUSION: The present study represents a global view of gene expression of LN and provides important clues for further study of LN related genes. And it also suggests defensin α₁, S100A8, S100A9 may be involved in the pathogenesis of LN.  相似文献   

Gene and protein alterations in the hippocampus of rats with temporal lobe epilepsy     

ZHANG Jin  DING Mei-ping  LIU Zhao  ZHANG Bao-rong  Li Guo-liang  ZHOU Fu-you  GU Miao 《园艺学报》2006,22(9):1779-1783

AIM:To examine the expression profiles of both genes and proteins in hippocampus of rats with temporal lobe epilepsy (TLE) for revealing the molecular mechanisms of TLE and looking for the candidate targets and new therapeutic approaches in clinical practice.METHODS:Rat temporal lobe epilepsy was induced by administration of lithium chloride and pilocarpine (LiCl-PILO).The expression spectra of genes and proteins were constructed through the techniques of cDNA microarray,two-dimensional (2D) electrophoresis and Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS).Subsequently,the differentially expressed genes and proteins were identified and analyzed.RESULTS:There were 192 genes of differential expression observed in hippocampal tissues of LiCl-PILO-induced temporal lobe epilepsy,and 159 genes have been registered in Genbank database,in which 84 genes were up-regulated while 75 genes were down-regulated.78 protein spots of differential display were screened out,in which 31 proteins were detected to be down-regulated and 47 were up-regulated.Finally,5 proteins were identified.CONCLUSION:These genes and proteins found in our study may play pivotal roles in the pathogenic mechanisms of epilepsy and may promise new therapeutic targets for refractory epilepsy in the future.  相似文献   

Construction and application of an avian intestinal intraepithelial lymphocyte cDNA microarray (AVIELA) for gene expression profiling during Eimeria maxima infection     

Kim CH  Lillehoj HS  Bliss TW  Keeler CL  Hong YH  Park DW  Yamage M  Min W  Lillehoj EP 《Veterinary immunology and immunopathology》2008,124(3-4):341-354

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Genome-Wide Selection of MAPKKK Gene Family in Gossypium raimondii and the Expression of Orthologs in Gossypium hirsutum     

Xu Haobiao  Li Libei  Zhang Chi  Feng Zhen  Yu Shuxun 《棉花学报》2019,31(6):459-473

[Objective] The MAPKKK gene family plays an important regulating role in response to multiple abiotic stresses and the development of plant. This study aims to identify MAPKKK genes of Gossypium raimondii and analyze their functions. [Method] In this study, based on G. raimondii genome database and bioinformatics method, G. raimondii MAPKKK family genes were identified and analyzed. Using the MEGA5, GSDS and Mapchart program, the phylogenetic tree, gene structure and chromosomes location analyses were accomplished. Based on the existing microarray data in cotton and comparative profiles of these MAPKKK genes, different expression of them in multiple abiotic stresses and the expression at different cotton fiber developmental stages were analyzed. [Result] A sum of 114 MAPKKK genes were identified systematically in G. raimondii and classified into 3 subfamilies (Raf, ZIK and MEKK) according to the gene stucture and phylogenetic tree analyses. They were distributed on all the 13 chromosomes of G. raimondii, and segmental duplication and tandem duplication events may have occurred. Compared with the recently released 78 genes of G. raimondii MAPKKK family genes, 47 sequences are exactly the same ones. [Conclusion] The results are helpful to understand the evolution and function of MAPKKK gene family. Our results provide a foundation for future functional characterizations of MAPKKK genes in cotton and probably other Gossypium plants.  相似文献   

金黄色葡萄球菌px-1 DNA芯片的制备及检测     

温尚昆 《山东农业大学学报(自然科学版)》2005,36(4):521-523

提取金黄色葡萄球菌px—1总DNA经酶切后,与载体质粒Puc18链接,并转化E.coli DH5α,从而构成金黄色葡萄球菌px—1的基因文库。用PCR方法扩增基因文库,所得PER产物点于芯片上,从而制各px—1DNA芯片。分别提取不同盐浓度培养的px—1的总RNA,把不同盐浓度培养的px—1的总RNA反转录为DNA,用Cy3,CY5分别标记反转录的DNA。通过杂交检测芯片,并获得杂交图像。  相似文献   

利用马克隆值差异显著的BILs鉴定棉纤维品质相关基因   总被引：1，自引：1，他引：0  

吴嫚  李龙云  裴文锋  Zhang Jinfa  于霁雯 《棉花学报》2020,32(1):52-62

【目的】马克隆值是衡量棉纤维品质的重要指标之一。利用马克隆值存在显著差异的2个陆海回交近交系材料进行高通量基因芯片分析,旨在筛选和鉴定棉纤维发育相关的关键基因。【方法】从SG747(Gossypium hirsutum L.)和Giza75(Gossypium Barbadense L.)高世代回交近交系(Backcross Inbred Lines,BILs)群体中选取NMGA-140(马克隆值6.2)和NMGA-051(马克隆值4.0)为材料,利用Affymetrix公司的棉花寡聚核苷酸基因芯片对其开花后10 DPA(Days after anthesis)的棉纤维进行了表达谱分析。【结果】获得了2655个差异表达基因,包括功能预测基因(15.57%),翻译、核糖体结构与生物合成相关基因(13.54%)和翻译后修饰、蛋白质转换、分子伴侣相关基因(9.31%)等。推测β-tub10正向调控棉纤维发育过程,β-tub1负向调控棉纤维发育过程,Ghi.3578.1.S1_s_at在棉纤维发育早期起到了作用。【结论】为棉花纤维品质的遗传改良提供了丰富的基因资源,为分子标记辅助育种开发更多新的分子标记。  相似文献   

Different Techniques of Screening Differentially Expressed Genes and Their Applying in Tea Plant     

Xun-Lei Wang  Jian-Liang Lu  Yue-Rong Liang 《茶叶》2013,(4):223-230

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水稻淡黄叶突变体安农标810S基因表达量的初步研究   总被引：2，自引：0，他引：2  

王聪田  王国槐  青先国  郭清泉  宋克堡  李必湖  严明理 《杂交水稻》2007,22(4):67-70

以水稻光温敏核不育系安农810S的自然淡黄叶突变体安农标810S及其野生型为材料，运用cDNA芯片技术，分析突变体和野生型的基因差异表达。结果表明，突变体有40多个与叶绿体蛋白相关的基因表达量明显增加，但是只有一个与叶绿体色素相关的基因即编码衰老诱导叶绿体延缓绿色蛋白（SGR）的基因野生型表达量明显大于突变体，这可能是突变型叶色变黄的原因。  相似文献   

长江中游常见鱼类DNA条形码研究及其电子芯片分析          下载免费PDF全文

郜星晨  姜伟  刘绍平 《渔业科学进展》2019,40(5):89-100

为建立长江中游常见鱼类的快速鉴别方法,文献调研了7目11科50属64种鱼类名录,GenBank共获取168条线粒体细胞色素c氧化酶I (COⅠ)序列,分析了序列特征、不同阶元Kimura-2-paramater(K2P)遗传距离及系统进化关系。结果显示,64种鱼类的种间遗传距离(平均值为0.084)明显大于种内(平均值为0.0079),NJ树上不同物种均能以较高支持度聚类成独立分支,以线粒体COⅠ序列作为DNA条形码可准确鉴定所研究鱼类;综合利用分子生物学软件筛选物种特异性探针,最终43种鱼类可筛选出112条物种特异性探针,物种识别率为67.2%。本研究验证了DNA条形码芯片技术在长江中游鱼类物种鉴定的可行性,可为该地区鱼类物种多样性保护提供技术支持。  相似文献   

Microarray-Based Detection and Differentiation of Virulent and Attenuated Pseudorabies Virus     

LIU Li-na LIU Zheng-fei RUAN Li WANG Zhao-xiong LI Ren-feng ZHANG Song-lin CHEN Huan-chun HE Qi-gai 《中国农业科学(英文版)》2007,6(2):234-243

DNA microchip used in this study was formed from miniature arrays of pseudorabies virus （PrV） gene-specific probes immobilized on a glass surface. Hybridization using DNA microchip （microarrays） was used for differentiation between virulent and attenuated PrV. The presence of four gene segments （gB, gD, gE~, and gE ） encoding conservative glycoprotein B （gB）, D （gD）, and E （gE） of PrV was monitored using multiplex PCR. The amplicons were labeled with Cy5 or Cy3 dyes followed by hybridization to the gene-specific capture probes on the microchip. The presence of gD and gB, gE~ gene fragments was shown in virulent （gE~ genotype） and attenuated PrV （gE genotype）, whereas gE- gene （deleted domain in gE gene） was demonstrated only in virulent, not in attenuated, virus. No cross-hybridization was observed when fluorescence labeled-PCR products of PrV were hybridized using capture probes of related viruses, such as porcine respiratory and reproductive syndrome virus （PRRSV）, porcine parvovirus （PPV）, Japanese encephalitis virus （JEV）, and porcine circovirus type 2 （PCV-2）. The assay was 10 times sensitive than gD gene-specific PCR. Overall, the results of this study suggested that the microarray might be very useful for detection and differentiation of virulent PrV from attenuated one.  相似文献