New Trends in RNA-Seq
来自Illumina China的测序产品经理余菽亮，分别从以下几个方面做了详细介绍： 在RNA序列的新的趋势，RNA序列的好处，RNA序列的挑战RNA序列的进化，TruSeq Standed RNA dUTP method ，提供完整的rRNA转录覆盖更多还原，TruSeq @ RNA库准备概述，单细胞测序的方法个别肿瘤细胞的转录组分析，细胞类型特异性基因表达标记，Fluidigm单细胞自准备系统概述等。
金颖：Fox3 suppresses NFAT-mediated differentiation to maintain self-renewal of embryonic stem cells
金颖教授为分子发育生物学研究室主任，健康科学中心研究员。金教授介绍了Fox3通过抑制NFAT介导的分化维持了胚胎干细胞的自我更新的机制等前沿发现。
Pluripotency-associated transcription factor Foxd3 is required for maintaining pluripotent cells. However, molecular mechanisms underlying its function are largely unknown.
Here, we report that Foxd3 suppresses differentiation induced by Calcineurin-NFAT signaling to maintain the ESC identity. Mechanistically, Foxd3 interacts with NFAT proteins and recruits co-repressor Tle4, a member of the Tle suppressor family highly expressed in undifferentiated ESCs, to repress NFATc3’s transcriptional activities.
Furthermore, global transcriptome analysis shows that Foxd3 and NFATc3 co-regulate a set of differentiation-associated genes in ESCs. Collectively, our study establishes a molecular and functional link between a pluripotency-associated factor and an important ESC differentiation-inducing pathway.
克氏锥虫和Chagas病 - Norma Andrews P1
本视频由科普中国和生物医学大讲堂出品
Norma Andrews (U. Maryland) Part 1: Trypanosoma cruzi and Chagas’ Disease
Lecture overview:
Trypanosoma cruzi and Leishmania are closely related intracellular protozoan parasites that cause serious diseases throughout the world. In the first part of this lecture, I will present background material on the biology of Trypanosoma cruzi and the history of its discovery as an important agent of human disease in Latin America. I will also discuss the main characteristics of the disease, and the current efforts to stop human transmission.
In the second part of this lecture, I will present background material on Leishmania, the intracellular protozoan parasites responsible for severe human pathology in several parts of the world. I will discuss the main disease forms, the history of identification of the causative agent and form of transmission, and recent discoveries that established important concepts in our understanding of this increasingly serious infectious disease.
In the third part of this lecture, I will discuss current work from our laboratory on mechanisms used by the intracellular parasites Trypanosoma cruzi and Leishmania to interact with mammalian cells. In addition to clarifying specific molecular strategies used by these parasites to infect and survive within host cells, these studies also led, in some instances, to unexpected insights on novel pathways regulating mammalian cell function.
Speaker bio:
Norma Andrews is currently a Professor and Chair of the Department of Cell Biology and Molecular Genetics at the University of Maryland. She received a B.S. degree in biology (1977) and a Ph.D. degree in biochemistry (1983) from the University of São Paulo, Brazil.
In 1990, after completing postdoctoral studies in the laboratory of Victor Nussenzweig at New York University, she was appointed Assistant Professor at Yale University where she remained until 2010.
Andrews was a Burroughs Wellcome New Investigator, a Burroughs Wellcome Molecular Parasitology Scholar and recipient of a NIH MERIT Award. Her laboratory has made numerous contributions to the cell biology of host-pathogen interactions, and discoveries in this area have led to the identification and functional characterization of a novel pathway of Ca2+-regulated lysosomal exocytosis in mammalian cells.
利什曼原虫和利什曼病 - Norma Andrews P2
本视频由科普中国和生物医学大讲堂出品
Norma Andrews (U. Maryland) Part 2: Leishmania spp and Leishmaniasis
In the second part of this lecture, I will present background material on Leishmania, the intracellular protozoan parasites responsible for severe human pathology in several parts of the world. I will discuss the main disease forms, the history of identification of the causative agent and form of transmission, and recent discoveries that established important concepts in our understanding of this increasingly serious infectious disease.
Norma Andrews moved from Yale University to the University of Maryland in 2010.
入侵细胞和在细胞内生存的策略 - Norma Andrews P3
本视频由科普中国和生物医学大讲堂出品
Norma Andrews (U. Maryland) Part 3: Strategies for Cell Invasion and Intracellular Survival
In the third part of this lecture, I will discuss current work from our laboratory on mechanisms used by the intracellular parasites Trypanosoma cruzi and Leishmania to interact with mammalian cells. In addition to clarifying specific molecular strategies used by these parasites to infect and survive within host cells, these studies also led, in some instances, to unexpected insights on novel pathways regulating mammalian cell function.
Norma Andrews moved from Yale University to the University of Maryland in 2010.
PerkinElmer Company Overview
At PerkinElmer we're taking action to improve the health and safety of people and the environment. We're committed to transforming risk into safety, mystery into knowledge and ideas into action for healthier today and even better tomorrow. We are committed to delivering solutions that improve our customers' outcomes, advance human and environmental health technologies and, deliver shareholder value. Every day, we work together to ensure the way we do business is as meaningful as the solutions we provide.
Synthetic Biology & Metabolic Engineering Teaching an Old Bacterium New Tricks
在第一部分，普莱瑟博士解释说，合成生物学涉及工程原理应用到生物的系统建立生物机器。在建筑这些机器的关键材料是合成DNA。合成DNA可以添加在不同的组合，以生物宿主，如细菌，把它们变成化学工厂，能生产小分子的选择。
Synthetic Biology & Metabolic Engineering Teaching an Old Bacterium New Tricks
在2部分，普拉瑟介绍了她的实验室使用的设计原则设计E. coli从葡萄糖生产葡萄糖二酸。葡糖酸不在细菌中自然产生的所以，普拉瑟和她的同事们“bioprospected”从其他生物酶并在大肠杆菌中表达，构建所需的酶途径。普拉瑟走我们通过优化时序的许多步骤，酶表达的定位和水平，以产生最大的产量。