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『簡體書』RNA干扰:从生物学到临床应用(导读版)

書城自編碼: 1946164
分類:簡體書→大陸圖書→醫學基礎醫學
作者: 〔加〕Wei-Ping
國際書號(ISBN): 9787030344397
出版社: 科学出版社
出版日期: 2012-06-01
版次: 1 印次: 1
頁數/字數: 450/729500
書度/開本: 16开 釘裝: 圆脊精装

售價:HK$ 407.1

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編輯推薦:
这本书包括三个部分:第一部分是RNA干扰的生理机制,主要阐述这个过程的生物学基础并为下一部分做铺垫。第二部分的题目是,“实验室的RNA干扰和siRNA的导人”,主要介绍RNA干扰作为研究手段和治疗方法的实际应用。最后一部分重点讲述RNA干扰相关药物使用的临床前期及临床相关的实际问题。通过这样的划分,希望可以使本书的编排显得更具逻辑性。
內容簡介:
从最开始RNA干扰还只是注射到线虫里的一个人工合成物,到2006年Fire和Mello因此获得诺贝尔奖,再到如今的临床试验,RNA干扰领域的发展可谓日新月异。RNA干扰:从生物学到临床应用(英文导读版)汇集该领域的多位研究专家,提供了最新的科学知识和实验方案,并将这一生物学分支领域从核酸化学扩展到药理学和信号转导通路的调控。RNA干扰:从生物学到临床应用(英文导读版)分为三部分,阐述了RNA干扰的生理机制、RNA干扰的实验室研究和siRNA导入、RNA干扰的临床应用。RNA干扰:从生物学到临床应用(英文导读版)专业权威.通过回顾RNA干扰领域的研究进展、提供具体的实验方案和启发新思路,旨在对该领域起到推动作用。
RNA干扰:从生物学到临床应用(英文导读版)秉承Springer《分子生物学方法》系列丛书的一贯风格,阐述明晰、便于使用,各章包括内容简介,必备材料与试剂的清单,易于操作的实验室方案、疑难问题的注意事项和易犯失误的避免。
關於作者:
Wei-Ping Min稤epartments of Surgery,Microbiology and Immunology,and Pathology,University of Western Ontario,London,ON,Canada
Thomas Ichim稭ediStem Laboratories Inc.,San Diego,CA,USA
Achim Aigner稤epartment of Pharmacology and Toxicology,School of Medicine,Philipps-University,Marburg,Germany
Yukio Akaneya稤ivision of Neurophysiology,Department of Neuroscience,Osaka University Graduate School of Medicine,Osaka,Japan
Miyuki Azuma稤epartment of Molecular Immunology,Graduate School,Tokyo Medical and Dental University,Tokyo,Japan
Oleksandr Baturevych稤epartment of Pharmacology,Toxicology and Virology,MDRNA Inc.,Bothell,WA,USA
Nicolas Beaudet稤epartment of Physiology and Biophysics,Faculty of Medicine and Health Sciences,Universit
目錄
前言
撰稿人
第一部分 RNA干扰的生理机制
1 RNA干扰的内源性抗病毒机制:一个比较生物学观点 Abubaker M.E.Sidahmed,and Bruce Wilkie
2 在哺乳动物细胞中,siRNA监控先天性免疫的募集 Michael P.Gantier,and Bryan R.G.Williams
3 病毒感染细胞中microRNA和非编码RNA的研究现状 Dominique L.Ouellet,and Patrick Provost
4 RNA干扰引发的等位基因特异性沉默 Hirohiko Hohjoh
5 考虑选择性剪切的siRNA计算机设计 Young J.Kim
6 生物信息学方法选择和优化siRNA Pirkko Muhonen,and Harry Holthofer
7 单个载体上共表达多个shRNA优化基因沉默 Yasuhito Ishigaki,Akihiro Nagao,and Tsukasa Matsunaga
8 应用表达多基因单位策略下调HIV-1 Jane Zhang and John J.Rossi
9 基于靶位点的可接近性设计最佳siRNA Ivo L.Hofacker and Hakim Tafer
10 2′-氧烷基siRNA的化学合成 Joachim W.Engels,Dalibor Odadzic,Romualdas Smicius,and Jens Haas
第二部分 RNA干扰的实验室研究和siRNA导入
11 靶向树突状细胞的siRNA特异性导入系统 Xiufen Zheng,Costin Vladau,Aminah Shunner,and Wei-Ping Min
12 流体力学导入的实验方案 Piotr G.Rychahou and B.Mark Evers
13 在固体表面进行siRNA反式转染的新方法 Satoshi Fujita,Kota Takano,Eiji Ota,Takuma Sano,Tomohiro Yoshikawa,Masato Miyake,and Jun Miyake
14 神经退行性疾病中,运用非病毒载体导入siRNA进行基因沉默 Satya Prakash,Meenakshi Malhotra,and Venkatesh Rengaswamy
15 运用siRNA发现新的癌症信号通路 Jin-Mei Lai,Chi-Ying F.Huang,and Chang-Han Chen
16 癌症研究中,运用生物可降解的聚合物介导shsiRNA导入Dhananjay J.Jere and Chong-Su Cho
17 用TatU1A向细胞导入siRNA和光诱导RNA干扰 Tamaki Endoh and Takashi Ohtsuki
18 体内外聚乙烯亚胺PEIsiRNA介导的基因沉默 Sabrina H?bel and Achim Aigner
19 多发性骨髓瘤细胞系siRNA的转染 Jose L.R.Brito,Nicola Brown,and Gareth J.Morgan
第三部分 临床应用
20 应用RNA干扰在脑内进行治疗的新方法 Yukio Akaneya
21 癌症免疫疗法中受抑制的RNA分子 Chih-Ping Mao and T.-C.Wu
22 应用siRNA避免组织损伤 Zhu-Xu Zhang,Marianne E.Beduhn,Xiufen Zheng,Wei-Ping Min,and Anthony M.Jevnikar
23 应用基因沉默避免免疫排斥 Xusheng Zhang,Mu Li,and Wei-Ping Min
24 在过敏性皮肤病中,局部运用siRNA靶定皮肤树突状细胞 Miyuki Azuma,Patcharee Ritprajak,and Masaaki Hashiguchi
25 直接用siRNA进行体内疼痛研究 Philippe Sarret,Louis Doré-Savard,and Nicolas Beaudet
26 RNA干扰作为治疗流感的备用方法 Shaguna Seth,Michael V.Templin,Gregory Severson,and Oleksandr Baturevych
27 评估卵巢癌基因沉默治疗方案中的靶标:体内和体外的方法 Anastasia Malek and Oleg Tchernitsa
索引
內容試閱
Chapter 1
Endogenous Antiviral Mechanisms of RNA Interference: A Comparative Biology Perspective
Abubaker M.E. Sidahmed and Bruce Wilkie
Abstract
RNA interference RNAi is a natural process that occurs in many organisms ranging from plants to mammals. In this process, double-stranded RNA or hairpin RNA is cleaved by a RNaseIII-type enzyme called Dicer into small interfering RNA duplex. This then directs sequence-specific, homology-dependent, posttranscriptional gene silencing by binding to its complementary RNA and triggering its elimination through degradation or by inducing translational inhibition. In plants, worms, and insects, RNAi is a strong antiviral defense mechanism. Although, at present, it is unclear whether RNA silencing naturally restricts viral infection in vertebrates, there are signs that this is certainly the case. In a relatively short period, RNAi has progressed to become an important experimental tool both in vitro and in vivo for the analysis of gene function and target validation in mammalian systems. In addition, RNA silencing has subsequently been found to be involved in translational repression, transcriptional inhibition, and DNA degradation. In this article we review the literature in this field, which may open doors to the many uses to which this important technology is being put, including the potential of RNAi as a therapeutic strategy for gene regulation to modulate host-pathogen interactions.
Key words: RNA interference, Dicer, Transposons, siRNA, miRNA, Antiviral, Silencing, Suppressors, Quelling
1. Discovery and Historical Overview
RNA silencing is a broad term that has been used to describe RNA interference RNAi in animals, posttranscriptional gene silencing in plants, and quelling in fungi, which are all phenotypically different but mechanistically similar forms of RNAi 1.RNAi is a natural process in which double-stranded RNA dsRNA or hairpin RNA is cleaved by RNaseIII-type enzyme called Dicer into small interfering RNA siRNA duplex of 21-26 nucleotides, which then direct sequence-specific, homology-dependent, posttranscriptional
Wei-Ping Min and Thomas Ichim eds., RNA Interference, Methods in Molecular Biology, vol. 623, DOI 10.1007978-1-60761-588-0_1, . Springer Science+Business Media, LLC 2010
Sidahmed and Wilkie
gene silencing by binding to its complementary RNA and triggering its elimination through degradation or by inducing translational inhibition 2, 3. RNA silencing is an evolutionarily ancient RNA surveillance mechanism, conserved among eukaryotes as a natural defense mechanism to protect the genome against invasion by mobile genetic elements, such as viruses, transposons, and possibly other highly repetitive genomic sequence and also to orchestrate the function of developmental programs in eukaryotic organisms 1, 2. Declaration of RNAi in 2002 as a “breakthrough” by the journal Science 4 encouraged scientists to revise their vision of cell biology and cell evolution, and the discovery of RNAi resulted in the Nobel Prize for Physiology or Medicine, being awarded to Andrew Fire and Craig Mello in 2006.
The discovery of RNAi followed observations in the late 1980s of transcriptional inhibition by antisense RNA expressed in transgenic plants 5, during a search for transgenic petunia flowers that were expected to be a more intense color of purple. In an attempt to alter flower colors in petunias, Jorgensen and colleagues 6 sought to upregulate the activity of the chalcone sythase chsA enzyme, which is involved in the production of anthocyanin pigments. They introduced additional copies of this gene. The overexpressed gene was expected to result in darker flowers in transgenic petunia, but instead it produced less pigmented, fully or partially white flowers, demonstrating that the activity of chsA had been significantly decreased. Actually, both the endogenous genes and the transgenes were downregulated in the white flowers. Surprisingly, the loss of cytosolic chsA mRNA was not linked with reduced transcription as tested by run-on transcription assays in isolated nuclei. Further investigation of the phenomenon in plants indicated that the downregulation was due to posttranscriptional inhibition of gene expression by an increased rate of mRNA degradation 6. Jorgensen invented the term “co-suppression of gene expression” to describe the elimination of mRNA of both the endogenous gene and the trans-gene, but the molecular mechanism remained unclear 6.
Other laboratories around the same time reported that the introduction of the transcribing sense gene could downregulate the expression of homologous endogenous genes 6, 7. A homology-dependent gene silencing phenomenon termed “quelling” was noted in the fungus Neurospora crassa 8. Quelling was recognized during attempts to increase the production of orange pigment expressed by the gene al1 of N. crassa 8. Wild-type N. crassa was transformed with a plasmid containing a 1.5 kb fragment of the coding region of the al1 gene. Some transformants were stably quelled and showed albino phenotypes. In these al1-quelled fungi, the amount of native mRNA was highly reduced while that of unspliced al1 mRNA was similar to the wild-type fungi. This indicated that quelling, but not the
Endogenous Antiviral Mechanisms of RNA Interference
rate of transcription, affected the level of mature mRNA in a homology-dependent manner.
Shortly thereafter, plant virologists conducting experiments to improve plant resistance to viral infection made a similar, unexpected observation. While it was documented that plants produced proteins that mediated virus-specific enhancement of tolerance or resistance to viral infection, a surprising finding was that short, noncoding regions of viral RNA sequences carried by plants provided the same degree of protection. It was concluded that viral RNA produced by transgenes could also inhibit viral accumulation 9. Homology-dependent RNA elimination was also noticed to occur during an increase in viral genome of infected plants 10. Ratcliff et al. 11 described a reverse experiment, in which short sequences of plant genes were introduced into viruses and the targeted gene was suppressed in an infected plant. Viruses can be the source, the target, or both for silencing. This phenomenon was named “virus-induced gene silencing” VIGS, and the whole setofsimilarphenomenawascollectivelynamedposttranscriptional gene silencing 11.
Not long after these observations in plants, investigators searched for homology-dependent RNA elimination phenomena in other organisms 12, 13. The phenomenon of RNAi first came to light after the discovery by Andrew Fire et al. in 1998 of a potent gene silencing effect, which occurred after injecting purified dsRNA directly into adult Caenorhabditis elegans 2. The injected dsRNA corresponded to a 742 nucleotide segment of the unc22 gene. This gene encodes nonessential but abundant myofilamentmuscleprotein.Theinvestigatorsobservedthatneither mRNA nor antisense RNA injections had an effect on production of this protein, but dsRNA successfully silenced the targeted gene. A decrease in unc22 activity is associated with severe twitching phenotype, and the injected animal as expected showed a very weak twitching phenotype, whereas the progeny nematodes showed strong twitching. The investigators then showed similar loss-of-function knockouts could be generated in a sequence-specific manner, using dsRNA corresponding to four other C. elegans genes, and they coined the term RNAi.
The Fire et al. discovery was particularly important because it was the first recognition of the causative agent of what was until then an unexplained phenomenon. RNAi can be initiated in C. elegans by injecting dsRNA into the nematodes 2, soaking them in a solution of dsRNA 14, feeding the worms bacteria that express dsRNA 15, and using transgenes that express dsRNA in vivo 16. This very potent method for knocking out genes required only catalytic amounts of dsRNA to silence gene expression. The silencing was not only in gut and other somatic cells, but also spread through the germ line to several subsequent generations 14. Similar silencing was soon confirmed in plants 17,
Sidahmed and Wilkie
trypanosomes 18, flies 19 and many other invertebrates and vertebrates. In parallel, it was determined that dsRNA molecules could specifically downregulate gene expression in C. elegans 2.
Subsequent genome screening lead to identification of small temporal RNA stRNA molecules that were similar to the siRNA in size, but in contrast to the siRNAs, stRNA were single-stranded and paired with genetically defined target mRNA sequences that were only partly complementary to the stRNA 20. Particularly, stRNAs lin-4 and let-7 were determined to bind with the 3¢noncoding regions of target lin-14 and lin-41 mRNAs, respectively, leading to reduction in mRNA-encoded protein accumulation. TheseobservationsencouragedinvestigatorstolookforstRNA-like molecules in different organisms, leading to the identification of hundreds of highly conserved RNA molecules with stRNA-like structural properties 21. These small RNAs are termed micro RNAs miRNAs. They are produced from transcript that folds to stem-loop precursor molecules first in the nucleus by the RNA III enzyme Dorsha and then in the cytosol by Dicer, and they are present in almost every tissue of every animal investigated 22. Thus, the RNAi pathway guides two distinct RNA classes, double-stranded siRNA and single-stranded miRNA, to the cytosolic RISC complex, which brings them to their target molecules.
2. The Molecular Mechanism of RNA Interference
RNAi is a natural process of gene silencing that occurs in many organisms ranging from plants to mammals. RNAi was observed first by a plant scientist in the late 1980s, but the molecular basis of its mechanism remained unknown until the late 1990s, when research using the C. elegans nematode showed that RNAi is an evolutionarily conserved gene-silencing mechanism 2. Sequence-specific posttranscriptional RNAi gene silencing by double-stranded RNA is conserved in a wide range of organisms: plants Neurospora, insect Drosophila, nematodes C. elegans, and mammals. This process is part of the normal defense mechanism against viruses and the mobilization of transposable genetic elements 2, 3. Although first discovered as a response to experimentally introduced RNA initiator, it is now known that RNAi and related pathways regulate gene expression at both transcriptional and posttranscriptional levels. The key steps in RNAi underlie several gene regulatory mechanisms that include downregulation of the expression of endogenous genes, direct transcriptional gene silencing and alteration of chromatin structure to promote kinetochore function, and chromosome segregation and direct elimination of DNA from somatic nuclei in tetrahymena 23.
3. Intrinsic Antiviral Defense Mechanism of RNAi
3.1. Antiviral RNA Silencing in Mammals
Endogenous Antiviral Mechanisms of RNA Interference
The dsRNAs, generated by replicating viruses, integrated transposons, or one of the recently discovered classes of regulatory noncoding miRNAs, are processed into short dsRNAs 20. These short RNAs generate a flow of molecular and biochemical events involving a cytoplasmic ribonuclease III RNase III-like enzyme, known as Dicer, and a multi-subunit ribonucleoprotein complex called RNA-induced silencing complex RISC. The antisense guide strand of the dsRNA directs the endonuclease activity of RISC to the homologous target site on the mRNAs, leading to its degradation and posttranscriptional gene silencing. The naturally occurring miRNAs are synthesized in large precursor forms in the nucleus. An RNA III enzyme called Drosha mediates the processing of the primary miRNA transcripts into pre-miRNA 70-80 mers, which are then exported via the exportin-5 receptor to the cytoplasm 24. In the cytoplasm, Dicer cleaves dsRNA, whether derived from endogenous miRNA or from replicating viruses, into small RNA duplexes of 19-25 base pairs bp. These have characteristic 3¢-dinucleotide overhangs that allow them to be recognized by RNAi enzymatic machinery, leading to degradation of target mRNA 25. Dicer works with a small dsRNA-binding protein, R2D2, to pass off the siRNA to the RISC, which has the splicing protein Argonaute 2 Ago2. Argonaute cleaves the target mRNA between bases 10 and 11 in relation to the 5¢-end of the antisense siRNA strand 26. The siRNA duplex is loaded into the RISC, whereupon an ATP-dependent helicase Ago2 unwinds the duplex, allowing the release of “passenger” strand and leading to an activated form of RISC with a single-stranded “guide” RNA molecule 27, 28. The extent of complementarities between the guide RNA strand and the target mRNA decides whether mRNA silencing is achieved by site-specific cleavage of the mRNA in the region of the siRNA- mRNA duplex 29 or through an miRNA-like mechanism of translational repression 30. For siRNA-mediated silencing, the cleavage products are released and degraded, leaving the disengaged RISC complex to further survey the mRNA pool.
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