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Proteomic analysis of seminal plasma from asthenozoospermia patients reveals proteins that affect oxidative stress responses and semen quality

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Asian Journal of Andrology 2009年第4期11卷 484-491页

作者： Jun Wang Jian Wang Hua-Rong Zhang Hui-Juan Shi Duan Ma Hong-Xin Zhao Biaoyang lin run-sheng li Systems Biology Division Zhejiang-California Nanosystems Institute （ZCNI） Zhejiang University Zhejiang University Huajiachi Campus Hangzhou 310029 China Key Laboratory of Contraceptive Drugs and Devices of National population and family planning committee （NPFPC） Shanghai Institute of Planned Parenthood Research Shanghai 200030 China Key Laboratory of Molecular Medicine Ministry of Education Institute of Biomedical Sciences Shanghai Medical College Fudan University Shanghai 200030 China

Asthenozoospermia （AS） is a common cause of human male infertility. In one study, more than 80% of the samples from infertile men had reduced sperm motility. Seminal plasma is a mixture of secretions from the testis, epididymis and several male accessory glands, including the prostate, seminal vesicles and Cowper＇s gland. Studies have shown that seminal plasma contains proteins that are important for sperm motility. To further explore the pathophysiological character of AS, we separated the seminal plasma proteins from AS patients and healthy donors using sodium dodecyl sulfate polyacrylamide gel electrophoresis and in-gel digestion, and then subjected the proteins to liquid chromatography-mass spectrometry （LC-MS/MS） analysis. A total of 741 proteins were identified in the seminal plasma, with a false discovery rate of 3.3%. Using spectral counting, we found that 45 proteins were threefold upregulated and 56 proteins were threefold downregulated in the AS group when compared with the control. Most of these proteins originated from the epididymis and prostate. This study identified a rich source of biomarker candidates for male infertility and indicates that functional abnormalities of the epididymis and prostate can contribute to AS. We identified D J-1--a protein that has been shown elsewhere to be involved in the control of oxidative stress （OS）-as a downregulated protein in AS seminal plasma. The levels of D J-1 in AS seminal plasma were about half of those in the control samples. In addition, the levels of reactive oxygen species were 3.3-fold higher in the AS samples than in the controls. Taken together, these data suggest that downregulation of DJ-1 is involved in OS in semen, and therefore affects the quality of the semen.

关键词： asthenozoospermia comparative proteomics DJ-1 seminal plasma

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Mullite Refractory Made from Andalusite and α-Al_2O_3

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Journal of Wuhan University of Technology(Materials Science) 2001年第2期16卷 44-46页

作者：李博文 Sch. of Materials Sci. and Eng. China University of Geosciences Beijing 100083 China

Mullite refractory was made from micropowder of andalusite and α-M2O3 by an ' one-step sintering process' . This refractory has a lower linear expansion coefficient, more simple process and the sintering tem-parature can be decreased 200 - 25017 . But the cool strength of the material is near to that of fused casting mullite brick. For this material, the test sum of α-Al2 O3 added is 20% , the favorable sintering temperature is 1400℃.

关键词： andalusite mullile α - A12 O3 refractory micropawder

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Effect of miR-296 on the Apoptosis of Androgen-independent Prostate Cancer Cells

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Journal of Reproduction and Contraception 2009年第1期20卷 1-10页

作者： Pei CHENG run-sheng li Biao-yang liN Wei-qun WANG Yu-hua li Yan GUO Wei li Institute for Systems Biomedicine Shanghai Jiao Tong University Shanghai 200240 China Shanghai Institute of Planned Parenthood Research Shanghai 200032 China Zhejiang California International NanoSystems Institute Hangzhou 310029 China

Objective To investigate the miR-296＇s function in prostate carcinoma（PCa） cells. Methods In order to profile the miRNA expression in LNCaP cells, the cultured cells were stimulated with androgen after 48-h starvation, miRNA microarray analysis and Q-RT-PCR assay were performed. To characterize the effects of miR296 on PCa cells, CL-1 and PC-3 cells were transfected with miR-296 and antisense-miR-296, cell growth and apoptosis were then analyzed. Results The miR-296-5p expression was up-regulated by 2.22 folds in the CL-1 cells, which do not express significantly androgen receptor, than in LNCaP cells. Knockdown of miR-296-5p induced apoptosis of CL-1 cells, but not LNCaP cells. However, knockdown of miR-296-5p inhibited the growth rate of LNCaP cells cultured in absence of androgen. Conclusion MiR-296-5p could be important for development of prostate cancer from androgen dependence to androgen independence.

关键词： prostate cancer cells miR-296-5p apoptosis

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Study on NDRG3 in Mesenchyma of Prostate

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Journal of Reproduction and Contraception 2008年第3期19卷 129-136页

作者： Wei-qun WANG Yu-hua li Ai-zhen HONG Biao-yang liN Xiao-feng JIA Yang li run-sheng li Department of Pathophysiology Norman Bethune Medical College Jilin University Changchun 130021 China Shanghai Institute of Planned Parenthood Research Shanghai 200032 China Zhejiang California International NanoSystems Institute Hangzhou 310029 China

Objective To study expression of NDRG3 in prostatic mesenchyma and effect of exogenous NDRG3 on prostatic stromal cells. Methods Immunohistochemical analysis was used to check expression of NDRG3 in prostate mesnenchyma. The WPMY-1 prostate immortalized mesenchyma cell line was stably-transfected with a NDRG3 gene expression vector. The NDRG3-stable transfected WPMY-1 sublines were studied along with parental and empty vector transfected WPMY-1 cells as controls. RT-PCR technology was applied to identity downstream gene expression under regulation of NDRG3 expression.Results Expression of DNRG3 was observed in prostate cancer mesenchyma, over-expression of NDRG3 in WPMY-1 cell up-regulated expression of chemotatic factors-CXCL3 and CXCL5. Conclusion Expression of stromal NDRG3 in prostate cancer specimens is significantly higher than that in benign prostatic hypertrophy （BPH） sample. There is a remarkable difference between the two groups of samples, NDRG3 may be related to angiogenesis in prostatic mesenchyma.

关键词： NDRG3 prostate mesenchyma

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前列腺癌的间质微环境变化

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生殖与避孕 2008年第6期28卷 367-370页

作者：王伟群李扬李润生吉林大学基础医学院吉林长春130021 上海市计划生育科学研究所上海200032

最近随着人们对肿瘤研究的不断深入,间质微环境在肿瘤发生中的作用越来越引起人们的重视。间质成纤维细胞分泌的因子具有促进上皮转化成抑制上皮细胞的凋亡,促进肿瘤的发生、增殖和迁移。血管生成与前列腺癌的病理分级、分期和临床进程... 详细信息

最近随着人们对肿瘤研究的不断深入,间质微环境在肿瘤发生中的作用越来越引起人们的重视。间质成纤维细胞分泌的因子具有促进上皮转化成抑制上皮细胞的凋亡,促进肿瘤的发生、增殖和迁移。血管生成与前列腺癌的病理分级、分期和临床进程有关。细胞外基质参与肿瘤的侵袭和转移过程,且这种基质与肿瘤相互作用的特性和程度会随着肿瘤的转移进程逐步改变。随着人们对前列腺癌微环境的深入研究,必将进入前列腺癌治疗的新时代。

关键词：前列腺癌间质微环境变化

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Overview of in-situ oxygen production technologies for lunar resources

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 233-255页

作者： Youpeng Xu sheng Pang liangwei Cong Guoyu Qian Dong Wang Laishi li Yusheng Wu Zhi Wang College of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China CAS Key Laboratory of Green Process and Engineering National Engineering Research Center for Green Recycling of Strategic Metal ResourcesInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

The rich resources and unique environment of the Moon make it an ideal location for human expansion and the utilization of extraterrestrial ***,crucial for supporting human life on the Moon,can be extracted from lunar regolith,which is highly rich in oxygen and contains polymetallic *** oxygen and metal extraction can be achieved using existing metallurgical ***,the ample reserves of water ice on the Moon offer another means for oxygen *** paper offers a detailed overview of the leading technologies for achieving oxygen production on the Moon,drawing from an analysis of lunar resources and environmental *** delves into the principles,processes,advantages,and drawbacks of water-ice electrolysis,two-step oxygen production from lunar regolith,and one-step oxygen production from lunar *** two-step methods involve hydrogen reduction,carbothermal reduction,and hydrometallurgy,while the one-step methods encompass fluorination/chlorination,high-temperature decomposition,molten salt electrolysis,and molten regolith electrolysis(MOE).Following a thorough comparison of raw materials,equipment,technology,and economic viability,MOE is identified as the most promising approach for future in-situ oxygen production on the *** the corrosion characteristics of molten lunar regolith at high temperatures,along with the Moon's low-gravity environment,the development of inexpensive and stable inert anodes and electrolysis devices that can easily collect oxygen is critical for promoting MOE technology on the *** review significantly contributes to our understanding of in-situ oxygen production technologies on the Moon and supports upcoming lunar exploration initiatives.

关键词： lunar resources in-situ oxygen production space metallurgy molten lunar regolith electrolysis

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Transforming growth factor-beta 1 enhances discharge activity of cortical neurons

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Neural Regeneration Research 2025年第2期20卷 548-556页

作者： Zhihui Ren Tian li Xueer liu Zelin Zhang Xiaoxuan Chen Weiqiang Chen Kangsheng li Jiangtao sheng Department of Microbiology and Immunology Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular ImmunopathologyShantou University Medical CollegeShantouGuangdong ProvinceChina Department of Neurosurgery First Affiliated Hospital of Shantou University Medical CollegeShantouGuangdong ProvinceChina

Transforming growth factor-beta 1(TGF-β1)has been extensively studied for its pleiotropic effects on central nervous system *** neuroprotective or neurotoxic effects of TGF-β1 in specific brain areas may depend on the pathological process and cell types ***-gated sodium channels(VGSCs)are essential ion channels for the generation of action potentials in neurons,and are involved in various neuroexcitation-related ***,the effects of TGF-β1 on the functional properties of VGSCs and firing properties in cortical neurons remain *** this study,we investigated the effects of TGF-β1 on VGSC function and firing properties in primary cortical neurons from *** found that TGF-β1 increased VGSC current density in a dose-and time-dependent manner,which was attributable to the upregulation of Nav1.3 *** VGSC current density and Nav1.3 expression were significantly abolished by preincubation with inhibitors of mitogen-activated protein kinase kinase(PD98059),p38 mitogen-activated protein kinase(SB203580),and Jun NH2-terminal kinase 1/2 inhibitor(SP600125).Interestingly,TGF-β1 significantly increased the firing threshold of action potentials but did not change their firing rate in cortical *** findings suggest that TGF-β1 can increase Nav1.3 expression through activation of the ERK1/2-JNK-MAPK pathway,which leads to a decrease in the firing threshold of action potentials in cortical neurons under pathological ***,this contributes to the occurrence and progression of neuroexcitatory-related diseases of the central nervous system.

关键词： central nervous system cortical neurons ERK firing properties JNK Nav1.3 p38 transforming growth factor-beta 1 traumatic brain injury voltage-gated sodium currents

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雄激素对前列腺中miR-204表达调控的研究

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生殖与避孕 2010年第10期30卷 649-652,658页

作者：李玉华乔坤刘媛媛何华林标扬李扬李润生上海市计划生育科学研究所上海200032 吉林大学白求恩医学院病理生理学教研室长春130021 浙江加州国际纳米技术研究院杭州310029

目的:探讨雄激素对前列腺癌细胞和组织中miR-204表达的影响。方法:采用荧光定量PCR方法检测前列腺癌细胞株(LNCaP、22RV1)和正常前列腺间质细胞(WPMY-1)在雄激素类似物R1881刺激下以及去势后不同时间的小鼠前列腺组织中miR-204表达量的... 详细信息

目的:探讨雄激素对前列腺癌细胞和组织中miR-204表达的影响。方法:采用荧光定量PCR方法检测前列腺癌细胞株(LNCaP、22RV1)和正常前列腺间质细胞(WPMY-1)在雄激素类似物R1881刺激下以及去势后不同时间的小鼠前列腺组织中miR-204表达量的变化。结果:在前列腺癌细胞LNCaP、22RV1中hsa-miR-204的表达量在雄激素刺激后下降了近2倍,而在去势小鼠的前列腺组织中,mmu-miR-204表达量增加了1.8倍。结论:miR-204受雄激素的负调控。

关键词：荧光定量PCR方法 miR-204 雄激素前列腺前列腺癌细胞株小鼠

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Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan Chen Xiu-Qing Qiao Guo Hui Bojing Sun Dongfang Hou Meidi Wang Xueqian Wu Tao Wu Dong-sheng li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-CdS/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the CdS photocatalyst via the synergistic strategy of phase junction,Schottky junction,and photothermal *** difference in atomic configuration between cubic-CdS （c-CdS） and hexagonal-CdS （h-CdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky junction further extracts the electrons in the hc-CdS phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic H2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of CdS by constructing plasmonic tandem heterogeneous junctions.

关键词： Heterojunctions LSPR Photocatalyst Phase junction Schottky junction Photothermal effect

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双酚A对小鼠精原干细胞C18-4的增殖及表观遗传机制的影响

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生殖与避孕 2015年第4期35卷 224-229,240页

作者：李玉华周小羽段斐潘鸿捷李扬李润生吉林大学白求恩医学院病理生理学教研室长春130021 国家人口和计划生育委员会计划生育药具重点实验室上海市计划生育科学研究所上海200032

目的：研究不同剂量的双酚A（BPA）暴露对小鼠精原干细胞C18-4的增殖及表观遗传机制的影响。方法：C18-4细胞暴露于不同浓度的BPA（10-9-10-4 mol/L）96 h,用CCK-8方法测定细胞的增殖;通过点杂交、Real-time PCR、Western blotting方法... 详细信息

目的：研究不同剂量的双酚A（BPA）暴露对小鼠精原干细胞C18-4的增殖及表观遗传机制的影响。方法：C18-4细胞暴露于不同浓度的BPA（10-9-10-4 mol/L）96 h,用CCK-8方法测定细胞的增殖;通过点杂交、Real-time PCR、Western blotting方法检测10-5 mol/L BPA、10-9 mol/L BPA对DNA甲基化水平、组蛋白甲基转移酶基因、组蛋白H3K27Me3、H3K36Me3水平的变化。结果：110-9-10-6 mol/L BPA促进C18-4细胞增殖;10-5 mol/L BPA抑制细胞增殖,促进细胞凋亡;10-4 mol/L BPA导致细胞死亡。210-5 mol/L高剂量BPA引起C18-4细胞DNA整体甲基化水平下降（P〈0.01）。3 10-5 mol/L高剂量BPA能引起H3K27Me3、H3K36Me3水平下降（P〈0.01）。结论：BPA能干扰小鼠精原干细胞C18-4的细胞增殖;高剂量BPA能引起DNA甲基化水平和组蛋白甲基化水平的下降。

关键词：双酚A(BPA) 精原细胞 DNA甲基化组蛋白甲基化

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