gene editing

基因编辑
  • 文章类型: Journal Article
    血栓性血小板减少性紫癜(TTP)是一种潜在致命的血液疾病,由于严重缺乏血浆ADAMTS13(一种具有1型重复的血栓形成蛋白和金属蛋白酶,13)活动。ADAMTS13通过超大型血管性血友病因子(VWF)的蛋白水解裂解对正常止血至关重要。自2001年发现ADAMTS13以来,已经建立了几种TTP动物模型。在这篇叙述性评论中,我们总结了迄今为止建立的TTP动物模型的创建和表征。
    我们从1969年到2022年通过PubMed进行了文献检索,使用自由文本:TTP和动物模型。我们发现了67篇同行评审的文章,但只有33篇文章被纳入审查,34篇没有讨论TTP的文章被排除在外。
    在小鼠中建立和充分表征的基因修饰或抗体介导的TTP模型,rat,狒狒,还有斑马鱼.然而,我们仍然迫切需要一个真正的自身免疫TTP动物模型。
    这些动物模型使研究人员能够进一步评估各种潜在的环境因素和/或遗传修饰因素对发病机理的贡献。programming,和TTP的结果;并帮助评估预防和治疗遗传性和获得性TTP的新方法的有效性和安全性。
    UNASSIGNED: Thrombotic thrombocytopenic purpura (TTP) is a potentially fatal blood disorder, resulting from severe deficiency of plasma ADAMTS13 (A Disintegrin And Metalloprotease with ThromboSpondin type 1 repeats, 13) activity. ADAMTS13 is crucial for normal hemostasis through proteolytic cleavage of ultra large von Willebrand factor (VWF). Since the discovery of ADAMTS13 in 2001, several animal models for TTP have been established. In this narrative review, we summarize the creation and characterization of the established animal models for TTP to date.
    UNASSIGNED: We performed a literature search through PubMed from 1969 to 2022 using free text: TTP and animal model. We found 67 peer-reviewed articles but only 33 articles were included for review and 34 articles that did not discuss TTP were excluded.
    UNASSIGNED: There were genetically modified or antibody-mediated TTP models being established and fully characterized in mouse, rat, baboon, and zebrafish. However, we are still in urgent need of a true autoimmune TTP animal model.
    UNASSIGNED: These animal models allowed researchers to further evaluate the contribution of various potential environmental factors and/or genetic modifiers to the pathogenesis, progression, and outcome of TTP; and to help assess the efficacy and safety of novel approaches for prevention and treatment of both hereditary and acquired TTP.
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  • 文章类型: Journal Article
    在植物衍生的次生代谢产物中,苄基异喹啉生物碱(BIA)在医学中起着至关重要的作用。罂粟中最常见的BIA是吗啡,可待因,蒂贝恩,罂粟碱,血根碱,和noscapine。BIA提供了丰富的临床上有用的药物,用于治疗各种疾病和疾病随着对这些草药的需求不断增加,罂粟植物的遗传改良似乎对于实现制药业的期望至关重要。随着成簇的规则间隔短回文重复(CRISPR)/CRISPR相关9(Cas9)的出现,代谢工程领域由于其吸引人的属性,其方法发生了范式转变,例如无转基因编辑能力,精度,选择性,鲁棒性,和多功能性。证明了CRISPR系统操纵罂粟代谢途径的潜力,但是,应进行有关在BIA途径工程中使用CRISPR的进一步研究,以将罂粟开发成工业规模合成BIA的生物反应器。在这方面,招募RNA指导的基因组编辑以敲除miRNA,负责花朵的基因,参与竞争途径的基因,和基础编辑进行了描述。迄今为止,这里提出的方法从未被建议或应用于罂粟。
    Among plant-derived secondary metabolites are benzylisoquinoline alkaloids (BIAs) that play a vital role in medicine. The most conspicuous BIAs frequently found in opium poppy are morphine, codeine, thebaine, papaverine, sanguinarine, and noscapine. BIAs have provided abundant clinically useful drugs used in the treatment of various diseases and ailments With an increasing demand for these herbal remedies, genetic improvement of poppy plants appears to be essential to live up to the expectations of the pharmaceutical industry. With the advent of clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated9 (Cas9), the field of metabolic engineering has undergone a paradigm shift in its approach due to its appealing attributes, such as the transgene-free editing capability, precision, selectivity, robustness, and versatility. The potentiality of the CRISPR system for manipulating metabolic pathways in opium poppy was demonstrated, but further investigations regarding the use of CRISPR in BIA pathway engineering should be undertaken to develop opium poppy into a bioreactor synthesizing BIAs at the industrial-scale levels. In this regard, the recruitment of RNA-guided genome editing for knocking out miRNAs, flower responsible genes, genes involved in competitive pathways, and base editing are described. The approaches presented here have never been suggested or applied in opium poppy so far.
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  • 文章类型: Journal Article
    蘑菇的遗传研究,在CRISPR-Cas9基因组编辑和RNA干扰等创新的推动下,改变我们对这些神秘真菌及其在农业中的多方面作用的理解,医学,和保护。这篇综合综述探讨了蘑菇遗传研究的基本原理和意义,深入研究道德,监管,和这个领域的生态维度。CRISPR-Cas9作为一种改变游戏规则的技术出现,实现精确的基因组编辑,靶向基因敲除,和路径操纵。RNA干扰通过下调基因以提高作物产量和增强病虫害抗性来补充这些努力。遗传研究还有助于保护稀有物种和开发更强大的蘑菇菌株,促进可持续种植实践。此外,它们释放了发现新的药用化合物的潜力,为制药和营养品提供新的视野。随着新兴技术和伦理考虑塑造了蘑菇研究的未来,这些研究有望彻底改变我们与这些真菌的关系,为更可持续和创新的世界铺平道路。
    Genetic studies in mushrooms, driven by innovations such as CRISPR-Cas9 genome editing and RNA interference, transform our understanding of these enigmatic fungi and their multifaceted roles in agriculture, medicine, and conservation. This comprehensive review explores the rationale and significance of genetic research in mushrooms, delving into the ethical, regulatory, and ecological dimensions of this field. CRISPR-Cas9 emerges as a game-changing technology, enabling precise genome editing, targeted gene knockouts, and pathway manipulation. RNA interference complements these efforts by downregulating genes for improved crop yield and enhanced pest and disease resistance. Genetic studies also contribute to the conservation of rare species and developing more robust mushroom strains, fostering sustainable cultivation practices. Moreover, they unlock the potential for discovering novel medicinal compounds, offering new horizons in pharmaceuticals and nutraceuticals. As emerging technologies and ethical considerations shape the future of mushroom research, these studies promise to revolutionize our relationship with these fungi, paving the way for a more sustainable and innovative world.
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  • 文章类型: Journal Article
    抗生素耐药性,一个已知的全球健康挑战,涉及细菌及其基因在动物中的流动,人类,和他们周围的环境。当细菌进化并对指定杀死它们的药物反应减弱时,就会发生这种情况,使感染难以治疗。尽管有几个障碍阻止了基因和细菌的传播,病原体定期从其他物种获得新的抗性因子,这降低了他们预防和治疗这种细菌感染的能力。这个问题需要医疗保健方面的协调努力,研究,和公众意识,以解决其对全球人类健康的影响。这篇综述概述了基因编辑技术的最新进展,特别是CRISPR/Cas9,揭示了对抗抗生素耐药性的突破。我们的重点仍然是CRISPR/cas9及其对抗生素耐药性及其相关感染的影响之间的关系。此外,将通过探索其不同的衍生物并讨论其相对于其他衍生物的优势和局限性来概述这项新的先进研究的前景以及采用这些技术对抗感染的挑战,从而为控制和预防抗生素耐药性的传播提供相应的参考。
    Antibiotic resistance, a known global health challenge, involves the flow of bacteria and their genes among animals, humans, and their surrounding environment. It occurs when bacteria evolve and become less responsive to the drugs designated to kill them, making infections harder to treat. Despite several obstacles preventing the spread of genes and bacteria, pathogens regularly acquire novel resistance factors from other species, which reduces their ability to prevent and treat such bacterial infections. This issue requires coordinated efforts in healthcare, research, and public awareness to address its impact on human health worldwide. This review outlines how recent advances in gene editing technology, especially CRISPR/Cas9, unveil a breakthrough in combating antibiotic resistance. Our focus will remain on the relationship between CRISPR/cas9 and its impact on antibiotic resistance and its related infections. Moreover, the prospects of this new advanced research and the challenges of adopting these technologies against infections will be outlined by exploring its different derivatives and discussing their advantages and limitations over others, thereby providing a corresponding reference for the control and prevention of the spread of antibiotic resistance.
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  • 文章类型: Journal Article
    CRISPR/Cas system, an adaptive immune system with clustered regularly interspaced short palindromic repeats, may interfere with exogenous nucleic acids and protect prokaryotes from external damages, is an effective gene editing and nucleic acid detection tools. The CRISPR/Cas system has been widely applied in virology and bacteriology; however, there is relatively less knowledge about the application of the CRISPR/Cas system in parasitic diseases. The review summarizes the mechanisms of action of the CRISPR/Cas system and provides a comprehensive overview of their application in gene editing and nucleic acid detection of parasitic diseases, so as to provide insights into future studies on parasitic diseases.
    [摘要] 成簇规律间隔短回文重复序列 (clustered regularly interspaced short palindromic repeats, CRISPR) 及其相关蛋白 (CRISPR-associated protein, Cas) 系统 (CRISPR/Cas系统) 为具有规律簇状短回文重复序列结构的适应性免疫系统, 能干 扰外源性核酸, 保护原核生物免受外部侵害, 是一种有效的基因编辑及核酸检测工具。CRISPR/Cas系统在病毒和细菌 领域应用广泛, 但在寄生虫病领域研究相对较少。本文分类探讨了CRISPR/Cas系统的作用机制, 全面综述了其在寄生 虫基因编辑与核酸检测中的应用, 旨在为未来寄生虫病相关研究提供参考。.
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  • 文章类型: Journal Article
    CAR-T细胞疗法在治疗B细胞恶性肿瘤方面显示出非凡的前景,这引发了人们对其治疗其他类型癌症的潜力的乐观。然而,CAR-T细胞治疗实体肿瘤和非B细胞血液系统恶性肿瘤的期望尚未实现。此外,关于病毒载体使用和当前个性化生产过程的安全问题是限制其广泛使用的其他瓶颈。近年来,基因编辑技术在CAR-T细胞治疗中的应用为释放CAR-T细胞治疗的潜在潜力和减轻其相关挑战开辟了一条新途径。此外,基因编辑工具为以完全非病毒的方法制造CAR-T细胞铺平了道路,并提供了一种通用的,现成的产品。尽管基因编辑策略有很多优势,经典基因编辑工具的脱靶活性(ZFN,TLENs,和CRISPR/Cas9)仍然是一个主要问题。因此,近年来已经做出了一些努力来减少它们的脱靶活性和遗传毒性,导致引入具有改进安全性的先进基因编辑工具。在这次审查中,我们首先研究先进的基因编辑工具,概述了这些技术目前如何应用于CAR-T细胞疗法的临床试验。在此之后,我们探索了旨在增强CAR-T细胞治疗安全性和有效性的各种基因编辑策略.
    CAR-T cell therapy has shown remarkable promise in treating B-cell malignancies, which has sparked optimism about its potential to treat other types of cancer as well. Nevertheless, the Expectations of CAR-T cell therapy in solid tumors and non-B cell hematologic malignancies have not been met. Furthermore, safety concerns regarding the use of viral vectors and the current personalized production process are other bottlenecks that limit its widespread use. In recent years the use of gene editing technology in CAR-T cell therapy has opened a new way to unleash the latent potentials of CAR-T cell therapy and lessen its associated challenges. Moreover, gene editing tools have paved the way to manufacturing CAR-T cells in a fully non-viral approach as well as providing a universal, off-the-shelf product. Despite all the advantages of gene editing strategies, the off-target activity of classical gene editing tools (ZFNs, TALENs, and CRISPR/Cas9) remains a major concern. Accordingly, several efforts have been made in recent years to reduce their off-target activity and genotoxicity, leading to the introduction of advanced gene editing tools with an improved safety profile. In this review, we begin by examining advanced gene editing tools, providing an overview of how these technologies are currently being applied in clinical trials of CAR-T cell therapies. Following this, we explore various gene editing strategies aimed at enhancing the safety and efficacy of CAR-T cell therapy.
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  • 文章类型: Journal Article
    Ferulaspp.是生产油胶树脂(OGR)的植物,是各种颜色的植物分泌物。这些OGR在药理学中具有各种工业应用,香水,和食物。这些OGR的主要成分是萜类化合物,一组具有不同结构和功能的有机化合物。Ferulaspp中OGR的生物合成。,尤其是Galbanum,具有相当大的经济和生态重要性。然而,这种生物合成途径的分子和遗传基础在很大程度上仍然是神秘的。这篇综述概述了有关Ferulaspp中OGR生物合成的知识现状。,突出了主要的酶,基因,以及参与不同萜类化合物合成的途径,如单萜,倍半萜,和三萜。它还研究了使用组学技术的潜力,如转录组学和代谢组学,和基因组编辑工具,例如CRISPR/Cas,为了提高阿魏的产量和质量,以及创造具有增强性能的新型生物活性化合物。此外,这篇综述讨论了当前在Ferulaspp中应用基因编辑的挑战和机遇。,并提出了一些未来研究和发展的方向。
    Ferula spp. are plants that produce oleo-gum-resins (OGRs), which are plant exudates with various colors. These OGRs have various industrial applications in pharmacology, perfumery, and food. The main constituents of these OGRs are terpenoids, a diverse group of organic compounds with different structures and functions. The biosynthesis of OGRs in Ferula spp., particularly galbanum, holds considerable economic and ecological importance. However, the molecular and genetic underpinnings of this biosynthetic pathway remain largely enigmatic. This review provides an overview of the current state of knowledge on the biosynthesis of OGRs in Ferula spp., highlighting the major enzymes, genes, and pathways involved in the synthesis of different terpenoid classes, such as monoterpenes, sesquiterpenes, and triterpenes. It also examines the potential of using omics techniques, such as transcriptomics and metabolomics, and genome editing tools, such as CRISPR/Cas, to increase the yield and quality of Ferula OGRs, as well as to create novel bioactive compounds with enhanced properties. Moreover, this review addresses the current challenges and opportunities of applying gene editing in Ferula spp., and suggests some directions for future research and development.
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  • 文章类型: Journal Article
    如今,在医学领域进行的调查中有很大一部分属于癌症治疗。一般来说,常规癌症治疗,包括化疗,放射治疗,和手术,已经使用了很长时间,是不够的,尤其是在恶性肿瘤中。因为基因突变会导致癌症,研究人员正在尝试使用基因工程工具来治疗这些疾病。其中之一是成簇的规则间隔的短回文重复(CRISPR),在过去的十年中,基因工程的强大工具。CRISPR,用其核酸内切酶蛋白形成CRISPR-Cas结构,Cas,在细菌和古细菌中被称为免疫系统(适应性免疫)的一部分。在Cas蛋白的类型中,Cas9核酸内切酶由于其高精度和高效率而被用于许多科学研究中。这篇综述回顾了CRISPR系统,专注于历史,分类,交货方式,应用程序,新一代,以及CRISPR-Cas9技术的挑战。
    Nowadays, a significant part of the investigations carried out in the medical field belong to cancer treatment. Generally, conventional cancer treatments, including chemotherapy, radiotherapy, and surgery, which have been used for a long time, are not sufficient, especially in malignant cancers. Because genetic mutations cause cancers, researchers are trying to treat these diseases using genetic engineering tools. One of them is clustered regularly interspaced short palindromic repeats (CRISPR), a powerful tool in genetic engineering in the last decade. CRISPR, which forms the CRISPR-Cas structure with its endonuclease protein, Cas, is known as a part of the immune system (adaptive immunity) in bacteria and archaea. Among the types of Cas proteins, Cas9 endonuclease has been used in many scientific studies due to its high accuracy and efficiency. This review reviews the CRISPR system, focusing on the history, classification, delivery methods, applications, new generations, and challenges of CRISPR-Cas9 technology.
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  • 文章类型: Journal Article
    纤维蛋白溶解的调节,降解血凝块的过程,是维持止血的关键.失调导致血栓形成或过度出血。纤维蛋白溶解系统中的蛋白质包括纤维蛋白原,凝血因子XIII,纤溶酶原,组织纤溶酶原激活剂(tPA),尿激酶(uPA),α2-抗纤溶酶,凝血酶激活的纤溶抑制剂(TAFI),纤溶酶原激活物抑制剂-1(PAI-1),α2-巨球蛋白,和其他人。虽然这些都是疾病的潜在治疗靶点,它们都缺乏有效或长效的抑制剂。基于RNA的技术的快速发展正在创造强大的工具来控制蛋白质的表达。RNA试剂可以是长效的并且被定制以减少或增加特定蛋白质的产生。核酸递送的进展,例如通过脂质纳米颗粒,能够将RNA输送到肝脏,在那里产生大多数凝血和纤维蛋白溶解蛋白。这篇综述将总结诱导1)蛋白质合成抑制的RNA类别,包括小干扰RNA(siRNA)和反义寡核苷酸(ASO);2)蛋白表达,包括信使RNA(mRNA)和自扩增RNA(saRNA);以及3)用于基因敲除和精确编辑的基因编辑。它将回顾针对凝血和纤溶系统中蛋白质的RNA疗法的具体例子,并评论使用最先进的RNA疗法控制生物应用和未来治疗的纤维蛋白溶解的广泛机会。
    Regulation of fibrinolysis, the process that degrades blood clots, is pivotal in maintaining hemostasis. Dysregulation leads to thrombosis or excessive bleeding. Proteins in the fibrinolysis system include fibrinogen, coagulation factor XIII, plasminogen, tissue plasminogen activator, urokinase plasminogen activator, α2-antiplasmin, thrombin-activatable fibrinolysis inhibitor, plasminogen activator inhibitor-1, α2-macroglobulin, and others. While each of these is a potential therapeutic target for diseases, they lack effective or long-acting inhibitors. Rapid advances in RNA-based technologies are creating powerful tools to control the expression of proteins. RNA agents can be long-acting and tailored to either decrease or increase production of a specific protein. Advances in nucleic acid delivery, such as by lipid nanoparticles, have enabled the delivery of RNA to the liver, where most proteins of coagulation and fibrinolysis are produced. This review will summarize the classes of RNA that induce 1) inhibition of protein synthesis, including small interfering RNA and antisense oligonucleotides; 2) protein expression, including messenger RNA and self-amplifying RNA; and 3) gene editing for gene knockdown and precise editing. It will review specific examples of RNA therapies targeting proteins in the coagulation and fibrinolysis systems and comment on the wide range of opportunities for controlling fibrinolysis for biological applications and future therapeutics using state-of-the-art RNA therapies.
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  • 文章类型: Journal Article
    CRISPR/Cas9基因编辑系统是一种多功能的基因修饰技术,在植物功能基因研究和遗传育种中起着至关重要的作用,动物,真菌,和微生物。本文综述了该技术在食用菌基因研究和遗传育种中的应用。审查涵盖了各个方面,包括Cas9和sgRNA的传递和表达策略,遗传转化方法,突变筛选,以及DNA双链断裂后靶位点的修复策略。此外,综述了该技术在食用菌中应用的主要挑战和优化策略。最后,讨论了该技术在食用菌研究中的未来应用潜力,借鉴作者个人的研究背景。
    The CRISPR/Cas9 gene editing system is a versatile technology for modifying gene, playing a crucial role in the study of functional genes and genetic breeding of plants, animals, fungi, and microorganisms. This review provides a comprehensive analysis of the application of this technology in gene research and genetic breeding of edible fungi. The review covers various aspects, including the delivery and expression strategies of Cas9 and sgRNA, genetic transformation methods, mutant screening, and repair strategies for target sites following DNA double-strand breaks. Additionally, the review summarizes the main challenges and optimization strategies associated with the application of this technology in edible fungi. Lastly, the future application potential of this technology in edible fungi research is discussed, drawing from the authors\' personal research background.
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