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The Plant Vascular System: Evolution, Development and Functions

Journal of Integrative Plant Biology 2013年第4期55卷 294-388页

作者： William J. Lucas Andrew Groover Raffael Lichtenberger Kaori Furuta Shri-Ram Yadav Yk Helariutta Xin-Qiang He Hiroo Fukuda Julie Kang Siobhan M. Brady John W. Patrick John Sperry Akiko Yoshida Ana-Flor López-Millan Michael A. Grusak Pradeep Kachroo Department of Plant Biology College of Biological Sciences University of California US Forest Service Pacific SW Res Stn Institute for Forest Genetics Institute of Biotechnology/Department of Biology and Environmental Sciences University of Helsinki State Key Laboratory of Protein and Plant Gene Research College of Life Sciences Peking University Department of Biological Sciences Graduate School of Science The University of Tokyo Biology Department University of Northern Iowa School of Environmental and Life Sciences The University of Newcastle Biology Department University of Utah Plant Nutrition Department Aula Dei Experimental Station (CSIC) USDA-ARS Children's Nutrition Research Center Department of Pediatrics Baylor College of Medicine Department of Plant Pathology College of Agriculture University of Kentucky

The emergence of the tracheophyte-based vascular system of land plants had major impacts on the evolution of terrestrial biology, in general, through its role in facilitating the development of plants with increased stature, photosynthetic output, and ability to colonize a greatly expanded range of environmental habitats. Recently, considerable progress has been made in terms of our understanding of the developmental and physiological programs involved in the formation and function of the plant vascular system. In this review, we first examine the evolutionary events that gave rise to the tracheophytes, followed by analysis of the genetic and hormonal networks that cooperate to orchestrate vascular development in the gymnosperms and angiosperms. The two essentialfunctions performed by the vascular system, namely the delivery of resources （water, essential mineral nutrients, sugars and amino acids） to the various plant organs and provision of mechanical support are next discussed. Here, we focus on critical questions relating to structural and physiological properties controlling the delivery of material through the xylem and phloem. Recent discoveries into the role of the vascular system as an effective long-distance communication system are next assessed in terms of the coordination of developmental, physiological and defense-related processes, at the whole-plant level. A concerted effort has been made to integrate all these new findings into a comprehensive picture of the state-of-the-art in the area of plant vascular biology. Finally, areas important for future research are highlighted in terms of their likely contribution both to basic knowledge and applications to primary industry.

关键词： Evolution vascular development phloem xylem nutrient delivery long-distance communication systemic signaling.

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Transplantation tolerance that depends on regulatory T cells induced by TGF-beta-producing regulatory B cells

Transplantation tolerance that depends on regulatory T cells...

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2013中国器官移植大会

作者： Gaoping Zhao kang Me Lee Ryan Scott julie SooHoo Liang Moh Moh Lindsey Fitzgerald Ji Lei Heidi Yeh Shaoping Deng James Markmann James Kim Department of Surgery Sichuan Provincial People's Hospital & Sichuan Academy of Medical Sciences Department of Surgery Massachusetts General HospitalHarvard Medical School

Regulatory B cells(Bregs)have been shown to play a critical role in immune homeostasis and in autoimmunity models.We have recently demonstrated that combined anti-TIM-1 and anti-CD45RB antibody treatment generates regulatory B cells necessary for long- term mouse islet allograft survival in a full MHC-mismatch donor-recipient pair Lee KM,Kim JI,,Stott R,Soohoo J,O’Connor MR.Yeh H, Zhao G,Eliades P,Fox C,Cheng N,Deng S,Markmann JF.Anti-CD45RB/anti-TIM-1-induced tolerance requires regulatory B cells. Am J Transplantation.2012;12:2072—2078).Here we provide evidence that the induction of tolerance by regulatory B cells requires regulatory T cells.Specifically,adoptive transfer of Bregs results in an increase in absolute number of Tregs in grafted recipients,and depletion of Tregs abrogates transplant tolerance conferred by adoptive transfer of regulatory B cells.We hypothesize that Bregs induce

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单细胞测序全景刻画肝癌浸润T细胞

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科学新闻 2018年第4期 40-40页

作者：郑春红郑良涛 Jae-Kwang Yoo 郭化虎张园园郭心怡 Boxi kang Ruozhen Hu julie Y.Huang Qiming Zhang Zhouzerui Liu Minghui Dong Xueda Hu 欧阳文君彭吉润张泽民北京大学美国AMGEN公司首都医科大学附属北京世纪坛医院胃肠及肝胆肿瘤外科北京大学医学部北大—清华生命科学联合中心

文章简介中国肝癌患者人数居世界之首,发病率仍在上升且术后存活率较低。通过深刻了解肝细胞癌的肿瘤免疫微环境来探索新的肿瘤免疫疗法及寻找有效的生物标志物,对于肝癌的诊断和治疗具有重大意义。本研究对肝细胞癌肿瘤微环境中T淋巴... 详细信息

文章简介中国肝癌患者人数居世界之首,发病率仍在上升且术后存活率较低。通过深刻了解肝细胞癌的肿瘤免疫微环境来探索新的肿瘤免疫疗法及寻找有效的生物标志物,对于肝癌的诊断和治疗具有重大意义。本研究对肝细胞癌肿瘤微环境中T淋巴细胞的转录组及T细胞受体(TCR)序列进行了综合分析,完成了超过5000个T细胞的单细胞测序数据。本研究探索了T

关键词：单细胞测序

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