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| 1 | Antisense MMP-9 RNA inhibits malignant glioma cell growth in vitro and in vivo显示文摘The matrix-degrading metalloproteinases (MMPs), particularly MMP-9, play important roles in the pathogenesis and development of malignant gliomas. In the present study, the oncogenic role of MMP-9 in malignant glioma cells was investigated via antisense RNA blockade in vitro and in vivo. TJ905 malignant glioma cells were transfected with pcDNA3.0 vector expressing antisense MMP-9 RNA (pcDNA-AS-MMP9), which significantly decreased MMP-9 expression, and cell proliferation was assessed. For in vivo studies, U251 cells, a human malignant glioma cell line, were implanted subcutaneously into 4-to 6-week-old BALB/c nude mice. The mice bearing well-established U251 gliomas were treated with intratumoral pcDNA-AS-MMP9-Lipofectamine complex (AS-MMP-9-treated group), subcutaneous injection of endostatin (endostatin-treated group), or both (combined therapy group). Mice treated with pcDNA (empty vector)-Lipofectamine served as the control group. Four or eight weeks later, the volume and weight of tumor, MMP-9 expression, microvessel density and proliferative activity were assayed. We demonstrate that pcDNA-AS-MMP9 significantly decreased MMP-9 expression and inhibited glioma cell proliferation. Volume and weight of tumor, MMP-9 expression, microvessel density and proliferative activity in the antisense-MMP-9-treated and therapeutic alliance groups were significantly lower than those in the control group. The results suggest that MMP-9 not only promotes malignant glioma cell invasiveness, but also affects tumor cell proliferation. Blocking the expression of MMP-9 with antisense RNA substantially suppresses the malignant phenotype of glioma cells, and thus can be used as an effective therapeutic strategy for malignant gliomas. | Cuiyun Sun Qian Wang Hongxu Zhou Shizhu Yu Alain R. Simard Chunsheng Kang Yanyan Li Yanling Kong Tongling An Yanjun Wen Fudong Shi Junwei Hao | 2013 | Neuroscience Bulletin2013,29,1: | 14 |
| 2 | Effect of Starch Sources on the Release Rates of Herbicides Encapsulated显示文摘The effects of starch sources on the behaviors of starch matrices and on the rates of herbicides released from the matrices were studied for slow release. The starches considered include native corn starch, wheat starch, potato starch and cassava starch. The matrices were prepared through encapsulating 2,4-dichlorophenoxyacetic or 2,4,5-trichlorophenoxyacetic acids as model herbicides with hot-gelatinized starch pastes. The encapsulation was evaluated in terms of herbicide content, swellability, encapsulation efficiency, and release rate. The results show that starch sources play an important role on the matrix behaviors and on release rates. The rate of 2,4-D released follows the order: wheat starch < potato starch < corn starch < cassava starch. And for the rate of 2,4,5-T, this order is nearly the same only with an exception that the late two kinds of starch are similar. It is also demonstrated that herbicides with different water solubility show different release rates, no matter what type of starch is used as the matrices. | ZHU Zhifeng YU Cuiyun WANG Liping | 2006 | Wuhan University Journal of Natural Sciences2006,11,2: | 2 |
| 3 | Starch modification to improve the paste stabilities both in phase and viscosity for warp sizing显示文摘 | Zhu Zhifeng Yu Jie Yu Cuiyun | 2005 | Journal of China Textile University2005,22,2: | 1 |
| 4 | Starch Modification for Slow Release of Herbicide Encapsulated with Concentrated Starch Paste显示文摘An attempt on starch modification has been made to increase the paste concentration of potato starch for reducing the energy consumption required for the encapsulation of herbicide within starch matrix by encapsulating 2,4-D as model herbicide. The matrix behaviors were evaluated in terms of the herbicide content,capability of swelling in water,encapsulation efficiency,and the rate of herbicide released from the matrix. To increase paste concentration of starch for decreasing the energy consumption in dry process,potato starch was acidified before the encapsulation. However,the matrix prepared in such a way showed that it weakened the control to the herbicide encapsulated,which increased the rate of herbicide released from the matrix. By introducing covalent bonds among starch molecules,the problem with the control and release rate can be completely solved. Moreover,the effects of formaldehyde amount,medium pH,herbicide content,and particle size on the matrix behaviors and release rate were also investigated. The newly developed matrix shows low capability of swelling and slow release,and reduces water evaporation in dry process by about 40% during matrix preparation. | ZHU Zhifeng YU Cuiyun ZHOU Xinhua WANG Liping | 2007 | Wuhan University Journal of Natural Sciences2007,12,3: | 1 |
| 5 | Effect of ions on the aggregation behavior of natural polymer alginate 显示文摘 | Yu Cuiyun Wei Hua Zhang Qiao | 2009 | J Phys Chem Part B2009,113,14: | 1 |
| 6 | A robust reporting system for measurement of SARS-CoV-2 spike fusion efficiency显示文摘Dear Editor,During the COVID-19 pandemic,several SARS-CoV-2 variants such as Alpha,Delta,and Omicron successively became dominant worldwide.The infection of SARS-CoV-2 is triggered by the binding of spike protein to the cell-surface receptor angiotensinconverting enzyme 2(ACE2),which then fuses with cell membrane or lysosomal membrane after endocytosis.1 Extensive cell fusion and syncytia formation are a signature feature of severe SARS-CoV-2 and may play an important role in COVID-19 pathogenesis.Research has shown that SARS-CoV-2 spikemediated cell fusion leads to the formation of abnormal and multinucleated cells in the lungs of patients.2 Accordingly,the fusion ability of SARS-CoV-2 spike protein may be a leading indicator of viral infectivity and disease severity in SARS-CoV-2 patients. | Cong Huang Yang Yang Peng Yang Fei Wang Xinyu Li Xiang Song Yiming Wang Cuiyun Yu Xuejun Wang Shengqi Wang | 2022 | Signal Transduction and Targeted Therapy2022,7,7: | 0 |
| 7 | Comparative transcriptome analysis on candidate genes involved in lipid biosynthesis of developing kernels for three walnut cultivars in Xinjiang显示文摘Walnut(Juglans regia L.)is a good source of lipids and polyunsaturated fatty acids(PUFAs).In order to explore the biosynthesis molecular mechanism of oil accumulation and fatty acid(FA)synthesis in walnut,the samples at different development periods of three walnut cultivars,’Zhipi’(ZP),’Xinwu 417’(W417)and’Xinwen 81’(W81)were collected for transcriptomic analysis.The analysis of oil accumulation and FA profiles showed that the oil content in mature walnut kernel was nearly 70%,and over 90%of FAs were PUFAs.We identified 126 candidate genes including 64 genes for FA de novo synthesis,45 genes for triacylglycerol assembly,and 17 genes for oil bodies involved in lipid biosynthesis by RNA-sequencing.Ten key enzymes including ACCase,LACS6,LACS8,SAD,FAD2,FAD3,LPAAT1,DGAT2,PDAT2,and PLC encoded by 19 genes were highly associated with lipid biosynthesis.Quantitative PCR analysis further validated 9 important genes,and the results were well consistent with our transcriptomic data.Finally,5 important transcription factors including WRI1,ABI3,FUS3,PKL and VAL1 were identified,and their main regulatory genes might contain ACCase,KASII,LACS,FAD3 and LPAAT which were determined through correlation analysis of expression levels for 27 walnut samples.These findings will provide a comprehensive understanding and valuable information on the genetic engineering and molecular breeding in walnut. | Wenqiang Wang Hao Wen Qiang Jin Wenjun Yu Gen Li Minyu Wu Hongjin Bai Lirong Shen Cuiyun Wu | 2022 | Food Science and Human Wellness2022,11,5: | 0 |
| 8 | Cardiac regeneration: Pre-existing cardiomyocyte as the hub of novel signaling pathway显示文摘In the mammalian heart,cardiomyocytes are forced to withdraw from the cell cycle shortly after birth,limiting the ability of the heart to regenerate and repair.The development of multimodal regulation of cardiac proliferation has verified that pre-existing cardiomyocyte proliferation is an essential driver of cardiac renewal.With the continuous development of genetic lineage tracking technology,it has been revealed that cell cycle activity produces polyploid cardiomyocytes during the embryonic,juvenile,and adult stages of cardiogenesis,but newly formed mononucleated diploid cardiomyocytes also elevated sporadically during myocardial infarction.It implied that adult cardiomyocytes have a weak regenerative capacity under the condition of ischemia injury,which offers hope for the clinical treatment of myocardial infarction.However,the regeneration frequency and source of cardiomyocytes are still low,and the mechanism of regulating cardiomyocyte proliferation remains further explained.It is noteworthy to explore what force triggers endogenous cardiomyocyte proliferation and heart regeneration.Here,we focused on summarizing the recent research progress of emerging endogenous key modulators and crosstalk with other signaling pathways and furnished valuable insights into the internal mechanism of heart regeneration.In addition,myocardial transcription factors,non-coding RNAs,cyclins,and cell cycle-dependent kinases are involved in the multimodal regulation of pre-existing cardiomyocyte proliferation.Ultimately,awakening the myocardial proliferation endogenous modulator and regeneration pathways may be the final battlefield for the regenerative therapy of cardiovascular diseases. | Tao Wang Xinzhe Chen Kai Wang Jie Ju Xue Yu Wanpeng Yu Cuiyun Liu Yin Wang | 2024 | Genes & Diseases2024,11,2: | 0 |