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4篇 您的检索式:作者名="Pengchen Li"
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1Using genomic data to improve the estimation of general combining ability based on sparse partial diallel cross designs in maize显示文摘Evaluation of general combining ability(GCA)is crucial to hybrid breeding in maize.Although the complete diallel cross design can provide an efficient estimation,sparse partial diallel cross(SPDC)is more flexible in breeding practice.Using real and simulated data sets of partial diallel crosses between 266 maize inbred lines,this study investigated the performance of SPDC designs for estimating the GCA.With different distributions of parental lines involved in crossing(called random,balanced and unbalanced samplings),different numbers of hybrids were sampled as the training sets to estimate the GCA of the 266 inbred lines.In this process,three statistical approaches were applied.One obtained estimations through the ordinary least square(OLS)method,and the other two utilized genomic prediction(GP)to estimate the GCA.It was found that the coefficient of determination of each approach was always higher than the heritability of a target trait,showing that the GCA for maize inbred lines could be accurately predicted with SPDC designs.Both the GP approaches were more accurate than the OLS,particularly in the scenario for a low-heritability trait with a small sample size.Additionally,prediction results demonstrated that a big sample of hybrids could greatly help improve the accuracy.The random sampling of parental lines had little influence on the average accuracy.However,the prediction for lines that never or seldom involved in crossing might suffer from much lower accuracy.Xin Wang Zhenliang Zhang Yang Xu Pengchen Li Xuecai Zhang Chenwu Xu 2020The Crop Journal2020,8,5:4
23-Thiomorpholin-8-oxo-8 H -acenaphtho [1,2- b ] pyrrole-9-carbonitrile ( S1 ) derivatives as pan-Bcl-2-inhibitors of Bcl-2, Bcl-x L and Mcl-1显示文摘Ting Song Xiangqian Li Xilong Chang Xiaomeng Liang Yan Zhao Guiye Wu Shenghui Xie Pengchen Su Zhiyong Wu Yingang Feng Zhichao Zhang 2013Bioorganic & Medicinal Chemistry2013,,1:1
3Expression and role of PTV1 lncRNA in glioma cells progression显示文摘Objective The aim of this study was to investigate the expression of PTV1 lncRNA in gliomas and themechanism of its interaction with miR-203a.Methods U87 and U251 cells were cultured stably and transfected with sh-PTV1 or ov-PTV1, respectively.The proliferative activity of U87 and U251 cells was detected and the transplanted tumor model nude micewere divided into U87 and U251 groups. U87-sh and u251-ov cells were injected into the armpit, thenmiR-203a mic and miR-203a inhibitors were administered to detect the changes in the expression of tumorrelatedproteins.Results The relative expression of PTV1 in gliomas was significantly higher than that in normal braintissues, while in GBM it was significantly higher than that in low-grade gliomas. Knockdown of PTV1significantly inhibited the proliferation of U87 cells, resulting in fewer cell clones;overexpression of rPTV1significantly promoted the proliferation of U251 cells, resulting in more cell colonies. The dual LuciferaseReporter assay showed that SP2 was a potential target of miR-203a. When U87 cells were treated with amiR-203a mimic, the expression of SP2 decreased;and when U251 cells were treated with a miR-203ainhibitor, the expression of SP2 increased significantly. SP2 was overexpressed in u87-sh cells and theproliferation, migration, and invasion of u87-sh cells were significantly enhanced. U251-ov cells showedthe opposite trend. Compared with the control group mice, the tumor volume in u87-sh group mice wassignificantly smaller and the positive rate of SP2 in tumor tissue was significantly lower. After administrationof the miR-203a inhibitor, the tumor volume increased gradually and the positive rate of SP2 increasedsignificantly, while u251-ov mice showed the opposite trend.Conclusion lncRNA PTV1 can be used as a molecule to interfere with miR-203a expression in order todownregulate SP2 and to promote the proliferation and invasion of glioma cells. lncRNA PTV1 may be anew biomarker and therapeutic target for glioma.Yue Li Yuling Bai Yan Qi Chang Cai Ying Liao Xiuzhu Liu Pengchen He 2021Oncology and Translational Medicine2021,7,2:0
4三阴性乳腺癌基因组与转录组全景图:亚型及治疗策略显示文摘文章简介三阴性乳腺癌(triple-negative breast cancer,TNBC)是雌激素受体、孕激素受体和HER-2均为阴性的一群乳腺癌,缺乏有效靶向治疗,预后差,是乳腺癌学界的世界性难题。近年的研究表明TNBC是一个异质性很强的群体,为更全面而深入地认识这类疾病,寻找精准治疗的突破口,研究团队全面分析了465例原发性三阴性乳腺癌(TNBC)队列的临床、基因组学和转录组学数据。Yi-Zhou Jiang Ding Ma Chen Suo Jinxiu Shi Mengzhu Xue Xin Hu Yi Xiao Ke-Da Yu Yi-Rong Liu Ying Yu Yuanting Zheng Xiangnan Li Chenhui Zhang Pengchen Hu Jing Zhang Qi Hua Jiyang Zhang Wanwan Hou Luyao Ren Ding Bao Bingying Li Jingcheng Yang Ling Yao Wen-Jia Zuo Shen Zhao Yue Gong Yi-Xing Ren Ya-Xin Zhao Yun-Song Yang Zhenmin Niu Zhi-Gang Cao Daniel G.Stover Claire Verschraegen Virginia Kaklamani Anneleen Daemen John R.Benson Kazuaki Takabe Fan Bai Da-Qiang Li 王鹏 石乐明 黄薇 邵志敏 2020科学新闻2020,,2:0
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