A Role for ETA253-412 in Peptide-based Delivery of Therapeutic Molecules Into Cells PDF Download

Author: Amaalia Emma Broad
Publisher:
ISBN: 9780494593059
Category :
Languages : en
Pages : 148

View

Book Description
The delivery of biomolecules by cell penetrating peptides (CPPs) is an innovative therapeutic strategy. However delivery efficiency is hindered by the entrapment of CPPs in vesicles, degradation, or recycling out of cells, which limits their delivery into the cell cytoplasm and nucleus. To overcome these barriers, we investigated a bacterial protein domain derived from Pseudomonas aeruginosa, Exotoxin A (ETA253-412) that is able to exit vesicular compartments. A series of CPP-ETA253-412 fusion proteins were constructed, expressed, and purified. Confocal microscopy and flow cytometry confirmed the internalization at 37°C of constructs containing CPPs (poly-arginine or TAT). In addition, constructs containing CPP-ETA253-412-eGFP were shown to relocate from endosomes to the cytosol. CPP-ETA253-412 constructs were also able to act as carriers of DNA cargos facilitating their delivery to the cytosol. The ETA253-412 translocation domain may prove useful for the intracellular delivery of drugs, protein therapeutics, siRNA delivery, and vaccine formulations.

Author: Amaalia Broad
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

View

Book Description
The delivery of biomolecules by cell penetrating peptides (CPPs) is an innovative therapeutic strategy. However delivery efficiency is hindered by the entrapment of CPPs in vesicles, degradation, or recycling out of cells, which limits their delivery into the cell cytoplasm and nucleus. To overcome these barriers, we investigated a bacterial protein domain derived from Pseudomonas aeruginosa, Exotoxin A (ETA, residues 253-412) that is able to exit vesicular compartments. A series of CPP-ETA(253-412) fusion proteins were constructed, expressed, and purified. Confocal microscopy and flow cytometry confirmed the internalization at 37oC of constructs containing CPPs (poly-arginine or TAT). In addition, constructs containing CPP-ETA(253-412)-eGFP were shown to relocate from endosomes to the cytosol. CPP-ETA(253-412) constructs were also able to act as carriers of DNA cargos facilitating their delivery to the cytosol. The ETA(253-412) translocation domain may prove useful for the intracellular delivery of drugs, protein therapeutics, siRNA delivery, and vaccine formulations.

Author: Jennifer Louten
Publisher: Academic Press
ISBN: 0323914926
Category : Science
Languages : en
Pages : 412

View

Book Description
Essential Human Virology, Second Edition focuses on the structure and classification of viruses, virus transmission and virus replication strategies based upon type of viral nucleic acid. Several chapters focus on notable and recognizable viruses and the diseases caused by them, including influenza, HIV, hepatitis viruses, poliovirus, herpesviruses and emerging and dangerous viruses. Additionally, how viruses cause disease (pathogenesis) is highlighted, along with discussions on immune response to viruses, vaccines, anti-viral drugs, gene therapy, the beneficial uses of viruses, research laboratory assays and viral diagnosis assays. Fully revised and updated with new chapters on coronaviruses, nonliving infectious agents, and notable non-human viruses, the book provides students with a solid foundation in virology. Focuses on human diseases and the cellular pathology that viruses cause Highlights current and cutting-edge technology and associated issues Presents real case studies and current news highlights in each chapter Features dynamic illustrations, chapter assessment questions, key terms, and a summary of concepts, as well as an instructor website with lecture slides, a test bank and recommended activities Updated and revised, with new chapters on coronaviruses, nonliving infectious agents, and notable non-human viruses

Author:
Publisher: Academic Press
ISBN: 012802870X
Category : Science
Languages : en
Pages : 386

View

Book Description
Published continuously since 1944, the Advances in Protein Chemistry and Structural Biology series has been the essential resource for protein chemists. Each volume brings forth new information about protocols and analysis of proteins. Each thematically organized volume is guest edited by leading experts in a broad range of protein-related topics. Describes advances in application of powerful techniques in a wide bioscience area Chapters are written by authorities in their field Targeted to a wide audience of researchers, specialists, and students The information provided in the volume is well supported by a number of high quality illustrations, figures, and tables

Author: Ravin Narain
Publisher: Woodhead Publishing
ISBN: 0081005210
Category : Science
Languages : en
Pages : 303

View

Book Description
Polymers and Nanomaterials for Gene Therapy provides the latest information on gene therapy, a topic that has attracted significant attention over the past two decades for the treatment of inherited and acquired genetic diseases. Major research efforts are currently focused on designing suitable carrier vectors that compact and protect oligonucleotides for gene therapy. The book explores the most recent developments in the field of polymer science and nanotechnology, and how these advancements have helped in the design of advanced materials. Non-viral vector systems, including cationic lipids, polymers, dendrimers, peptides and nanoparticles, are potential routes for compacting DNA for systemic delivery. However, unlike viral analogues that have no difficulty in overcoming cellular barriers and immune defense mechanisms, non-viral gene carriers consistently exhibit significant reduced transfection efficiency due to numerous extra- and intracellular obstacles. Therefore, biocompatibility and potential for large-scale production make these compounds increasingly attractive for gene therapy. This book contains chapters on the engineering of polymers and nanomaterials for gene therapy, and how they can form complexes with DNA and avoid both in vitro and in vivo barriers. Other chapters describe in vitro, ex vivo, in vivo gene therapy studies, and the current issues affecting non-viral gene therapy. Explores current challenges in the research of genetic diseases Discusses polymers for gene therapy and their function in designing advanced materials Provides examples of organic and inorganic nanomaterials for gene therapy Includes labeling, targeting, and assays Looks at characterization, physico-(bio)chemical properties, and applications

Author:
Publisher: Academic Press
ISBN: 0123914639
Category : Science
Languages : en
Pages : 649

View

Book Description
This volume explores some of the most exciting recent advances in basic research on nanoparticles in translational science and medicine and how this knowledge is leading to advances in the various fields. - This series provides a forum for discussion of new discoveries, approaches, and ideas - Contributions from leading scholars and industry experts - Reference guide for researchers involved in molecular biology and related fields

Author: Emerson c. Perin
Publisher: Academic Press
ISBN: 0128018631
Category : Medical
Languages : en
Pages : 538

View

Book Description
Stem Cell and Gene Therapy for Cardiovascular Disease is a state-of-the-art reference that combines, in one place, the breadth and depth of information available on the topic. As stem cell and gene therapies are the most cutting-edge therapies currently available for patients with heart failure, each section of the book provides information on medical trials from contributors and specialists from around the world, including not only what has been completed, but also what is planned for future research and trials. Cardiology researchers, basic science clinicians, fellows, residents, students, and industry professionals will find this book an invaluable resource for further study on the topic. - Provides information on stem and gene therapy medical trials from contributors and specialists around the world, including not only what has been completed, but also what is planned for future research and trials - Presents topics that can be applied to allogeneic cells, mesenchymal cells, gene therapy, cardiomyoctyes, iPS cells, MAPC's, and organogenesis - Covers the three areas with the greatest clinical trials to date: chronic limb ischemia, chronic angina, and acute MI - Covers the prevailing opinions on how to harness the body's natural repair mechanisms - Ideal resource for cardiology researchers, basic science clinicians, fellows, residents, students, and industry professionals

Author: Alan D.T. Barrett
Publisher: Academic Press
ISBN: 0080919022
Category : Science
Languages : en
Pages : 1519

View

Book Description
The last 20 years has seen a rapid increase in infectious diseases, particularly those that are termed "emerging diseases" such as SARS, "neglected diseases" such as malaria and those that are deemed biothreats such as anthrax. It is well-recognized that the most effective modality for preventing infectious diseases is vaccination. This book provides researchers with a better understanding of what is currently known about these diseases, including whether there is a vaccine available or under development. It also informs readers of the key issues in development of a vaccine for each disease. - Provides a comprehensive treatise of the agents that are responsible for emerging and neglected diseases and those that can be used as biothreats - Includes the processes such as the vaccine development pathway, vaccine manufacturing and regulatory issues that are critical to the generation of these vaccines to the marketplace - Each chapter will include a map of the world showing where that particular disease is naturally found

Author: Nejat Duzgunes
Publisher: Academic Press
ISBN: 9780121822705
Category : Science
Languages : en
Pages : 0

View

Book Description
Liposomes are cellular structures made up of lipid molecules. Important as a cellular model in the study of basic biology, liposomes are also used in clinical applications such as drug delivery and virus studies.