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Languages : en
Pages : 0
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Helical peptidomimetics that contain non-natural amino acid residues, such as beta- and gamma-amino acid residues, are less prone to proteolytic degradation than are conventional peptides (composed exclusively of alpha-amino acid residues). However, the additional backbone atoms in beta- and gamma-residues relative to alpha-residues may increase backbone flexibility, and thereby increase the entropic penalty upon binding to a protein partner, resulting in decreased affinity for the targets. Ring-constrained beta- and gamma-amino acids have been developed to address this problem by pre-organizing the residues for helical conformations. This thesis details development of alpha-helix-like alpha/beta/gamma foldamers containing cyclic and/or acyclic beta- and gamma-amino acid residues. Chapters 2 and 3 discuss biophysical investigations of helical alpha/beta/gamma-peptides. Studies of the ring-constrained beta- and gamma-residues' effects on the helicity of alpha/beta/gamma-peptides suggest that beta(3)- and gamma(4)- amino acid residues differ in their intrinsic tendencies to adopt helical secondary structure, with gamma(4)-residues displaying a higher propensity than beta(3)- residues. Different acyclic gamma-residues, and different patterns of alpha, beta and gamma residues in the backbone have been explored. The results show that as long as cyclically constrained beta-amino acids are incorporated into alpha/beta/gamma-peptides, the alpha/beta/gamma-peptide helical propensity is not very sensitive to the nature of the acyclic gamma-amino acids used (although gamma(4)-amino acids are the best helix-adopting acyclic residues) or the pattern of residues within the backbone. Chapter 4 discusses efforts to establish an alpha + alpha/beta/gamma coiled-coil system for use in thermodynamic analysis of alpha + alpha/beta/gamma coiled-coil folding propensities. Chapter 5 discusses efforts toward developing functional alpha/beta/gamma-peptides to modulate apoptosis-regulating protein-protein interactions.
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Helical peptidomimetics that contain non-natural amino acid residues, such as beta- and gamma-amino acid residues, are less prone to proteolytic degradation than are conventional peptides (composed exclusively of alpha-amino acid residues). However, the additional backbone atoms in beta- and gamma-residues relative to alpha-residues may increase backbone flexibility, and thereby increase the entropic penalty upon binding to a protein partner, resulting in decreased affinity for the targets. Ring-constrained beta- and gamma-amino acids have been developed to address this problem by pre-organizing the residues for helical conformations. This thesis details development of alpha-helix-like alpha/beta/gamma foldamers containing cyclic and/or acyclic beta- and gamma-amino acid residues. Chapters 2 and 3 discuss biophysical investigations of helical alpha/beta/gamma-peptides. Studies of the ring-constrained beta- and gamma-residues' effects on the helicity of alpha/beta/gamma-peptides suggest that beta(3)- and gamma(4)- amino acid residues differ in their intrinsic tendencies to adopt helical secondary structure, with gamma(4)-residues displaying a higher propensity than beta(3)- residues. Different acyclic gamma-residues, and different patterns of alpha, beta and gamma residues in the backbone have been explored. The results show that as long as cyclically constrained beta-amino acids are incorporated into alpha/beta/gamma-peptides, the alpha/beta/gamma-peptide helical propensity is not very sensitive to the nature of the acyclic gamma-amino acids used (although gamma(4)-amino acids are the best helix-adopting acyclic residues) or the pattern of residues within the backbone. Chapter 4 discusses efforts to establish an alpha + alpha/beta/gamma coiled-coil system for use in thermodynamic analysis of alpha + alpha/beta/gamma coiled-coil folding propensities. Chapter 5 discusses efforts toward developing functional alpha/beta/gamma-peptides to modulate apoptosis-regulating protein-protein interactions.
Author: Mahmood Aliofkhazraei
Publisher: Springer
ISBN: 9783319152653
Category : Science
Languages : en
Pages : 0
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Book Description
This edited book is devoted to different electrochemical aspects of nano materials. This comprehensive reference text is basically divided in 3 parts: electrochemical synthesis routes for nanosized materials, electrochemical properties of nano materials and electrochemical characterization methods for nanostructures. The Handbook is a reference work to chemists and materials scientists interested in the nano aspects of electrochemistry. The chapters are written by a number of international experts in the field and the content will assist members of both electrochemical and materials communities to keep abreast of developments in the field.
Author: Marc J.M. Abadie
Publisher: Springer
ISBN: 9783030574581
Category : Medical
Languages : en
Pages : 0
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Book Description
This contributed volume applies the insights of supramolecular chemistry to biomedical applications such as ions/water transport through nano-scale channels, gene therapy, tissue engineering and drug delivery, to cite some of the major investigations.The challenge is to understand the mechanisms of transport through tissues particularly in the therapeutic treatment of a disease where the active drug must be delivered directly to diseased cells without affecting healthy cells. As a result, smaller quantities of active substances can be used to treat the disease. Another interest concerns new ways to administer gene therapy. If genes are often delivered to their target cells by adapted viruses, the supramolecular non-viral ‘vectors’ using dynamic nano-frameworks and nano-structures are presented. In addition, it is important to reconstruct damaged tissues by mimicking natural processes in cells and polymers, such as tissue engineering and self-healing. Different options are here discussed: e.g. hydrogels based on chitosan, a carbohydrate polymer, are proving especially promising for tissue engineering and drug delivery. For controlled delivery of drugs or other biologically active compounds, hydrogels sensitive to the most important stimuli in the human body, such as temperature, pH, ionic strength, glucose and biomolecules released by the organism in pathological conditions have been developed. Finally, to assist and validate the experimental studies, computer modelling and simulations of large-sized molecular structures and systems using different molecular dynamics and quantum mechanical techniques are developed based on the experimental and chemistry synthesis. This book is of great interest for graduate students, researchers and health professionals interested in acquiring a better understanding of the mechanisms of medical treatments. In addition, it provides numerous tools to develop better therapies for human diseases.
Author: Weibo Cai
Publisher: Springer Science & Business Media
ISBN: 1447143728
Category : Technology & Engineering
Languages : en
Pages : 997
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Book Description
This book covers a broad area of engineering research in translational medicine. Leaders in academic institutions around the world contributed focused chapters on a broad array of topics such as: cell and tissue engineering (6 chapters), genetic and protein engineering (10 chapters), nanoengineering (10 chapters), biomedical instrumentation (4 chapters), and theranostics and other novel approaches (4 chapters). Each chapter is a stand-alone review that summarizes the state-of-the-art of the specific research area. Engineering in Translational Medicine gives readers a comprehensive and in-depth overview of a broad array of related research areas, making this an excellent reference book for scientists and students both new to engineering/translational medicine and currently working in this area. The ability for engineering approaches to change biomedical research are increasing and having significant impact. Development of basic assays and their numerous applications are allowing for many new discoveries and should eventually impact human health. This book brings together many diverse yet related topics to give the reader a solid overview of many important areas that are not found together elsewhere. Dr. Weibo Cai has taken great care to select key research leaders of many sub-disciplines who have put together very detailed chapters that are easy to read yet highly rich in content. _______________ This book brings together many diverse yet related topics to give the reader a solid overview of many important areas that are not found together elsewhere. Dr. Weibo Cai has taken great care to select key research leaders of many sub-disciplines who have put together very detailed chapters that are easy to read yet highly rich in content. It is very exciting to see such a great set of chapters all together to allow one to have a key understanding of many different areas including cell, gene, protein, and nano engineering as well as the emerging field of theranostics. I am sure the readers will find this collection of important chapters helpful in their own research and understanding of how engineering has and will continue to play a critical role in biomedical research and clinical translation. Sanjiv Sam Gambhir M.D., Ph.D. Stanford University, USA Engineering in Translational Medicine is a landmark book bridging the fields of engineering and medicine with a focus on translational technologies and methods. In a single, well-coordinated volume, this book brings together contributions from a strong and international scientific cast, broadly covering the topics. The book captures the tremendous opportunities made possible by recent developments in bioengineering, and highlights the potential impact of these advances across a broad spectrum of pressing health care needs. The book can equally serve as a text for graduate level courses, a reference source, a book to be dipped into for pleasure by those working within the field, or a cover-to-cover read for those wanting a comprehensive, yet readable introduction to the current state of engineering advances and how they are impacting translational medicine. Simon R. Cherry, Ph.D. University of California, Davis, USA
Author: James R. Swartz
Publisher: Springer Science & Business Media
ISBN: 3642593372
Category : Science
Languages : en
Pages : 213
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Book Description
Cell-free protein synthesis is coming of age! Motivated by an escalating need for efficient protein synthesis and empowered by readily accessible cell-free protein synthesis kits, the technology is expanding both in the range of feasible proteins and in the ways that proteins can be labeled and modified. This volume follows "Cell-Free Translation Systems", edited by Professor Alexander S. Spirin in 2002. Since then, an impressive collection of new work has emerged that demonstrates a substantial expansion of capability. In this volume, we show that proteins now can be efficiently produced using PCR products as DNA templates and that even membrane proteins and proteins with multiple disulfide proteins are obtained at high yields. Many additional advances are also presented. It is an exciting time for protein synthesis technology.
Author: David Phoenix
Publisher: Wiley-VCH
ISBN: 9783527676132
Category : Medical
Languages : en
Pages : 414
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Book Description
By integrating knowledge from pharmacology, microbiology, molecular medicine, and engineering, researchers from Europe, the U.S. and Asia cover a broad spectrum of current and potential antimicrobial medications and treatments. The result is a comprehensive survey ranging from small-molecule antibiotics to antimicrobial peptides and their engineered mimetics, from enzymes to nucleic acid therapeutics, from metallic nanoparticles to photo- and sonosensitizers and to phage therapy. In each case, the therapeutic approaches are compared in terms of their mechanisms, likelihood to induce resistance, and their efficiency in a global healthcare context. Unrivaled knowledge for professionals in fundamental research, pharmaceutical development and clinical practice.
Author: George W Gokel
Publisher: Royal Society of Chemistry
ISBN: 1788010914
Category : Science
Languages : en
Pages : 205
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Book Description
Crown Ethers and Cryptands introduces the broad and basic principles of crown ether and cryptand chemistry at the advanced undergraduate, graduate and working professional level. The book provides a brief introduction, outlining the history of the field and goes on to cover syntheses, complexation of cations and molecules, complex structures, applications and recent developments. It aims to acquaint readers with the scope and principles of the field, providing a bibliography of reviews and books as reference to further reading and citations of the original literature.
Author:
Publisher: Academic Press
ISBN: 0128241594
Category : Medical
Languages : en
Pages : 384
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Book Description
Advances in Cancer Research, Volume 150, the latest release in this ongoing series, covers the relationship(s) between autophagy and senescence, how they are defined, and the influence of these cellular responses on tumor dormancy and disease recurrence. Specific sections in this new release include Autophagy and senescence, converging roles in pathophysiology, Cellular senescence and tumor promotion: role of the unfolded protein response, autophagy and senescence in cancer stem cells, Targeting the stress support network regulated by autophagy and senescence for cancer treatment, Autophagy and PTEN in DNA damage-induced senescence, mTOR as a senescence manipulation target: A forked road, and more. Addresses the relationship between autophagy and senescence in cancer therapy Covers autophagy and senescence in tumor dormancy Explores autophagy and senescence in disease recurrence
Author: Alexander Hillisch
Publisher: Birkhäuser
ISBN: 3034879970
Category : Medical
Languages : en
Pages : 294
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Book Description
Research in the pharmaceutical industry today is in many respects quite different from what it used to be only fifteen years ago. There have been dramatic changes in approaches for identifying new chemical entities with a desired biological activity. While chemical modification of existing leads was the most important approach in the 1970s and 1980s, high-throughput screening and structure-based design are now major players among a multitude of methods used in drug discov ery. Quite often, companies favor one of these relatively new approaches over the other, e.g., screening over rational design, or vice versa, but we believe that an intelligent and concerted use of several or all methods currently available to drug discovery will be more successful in the medium term. What has changed most significantly in the past few years is the time available for identifying new chemical entities. Because of the high costs of drug discovery projects, pressure for maximum success in the shortest possible time is higher than ever. In addition, the multidisciplinary character of the field is much more pronounced today than it used to be. As a consequence, researchers and project managers in the pharmaceutical industry should have a solid knowledge of the more important methods available to drug discovery, because it is the rapidly and intelligently combined use of these which will determine the success or failure of preclinical projects.
Author: A. Ehrenberg
Publisher: Elsevier
ISBN: 148322676X
Category : Science
Languages : en
Pages : 441
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Book Description
Magnetic Resonance in Biological Systems, Volume 9 is a collection of manuscripts presented at the Second International Conference on Magnetic Resonance in Biological Systems, held in Wenner-Gren Center, Stockholm, Sweden on June 1966. The conference is sponsored by International Union of Biochemistry Swedish Medical Research Council Swedish Natural Science Research Council Wenner-Gren Center Foundation for Scientific Research. This book contains 51 chapters, and begins with reviews of NMR investigations of biological macromolecules, including proteins, amino acids, and glycylglycine copper (II). Considerable chapters are devoted to numerous biological studies using the electronic paramagnetic resonance (EPR), thus introducing the branch of science called submolecular biology. This book also explores other applications of NMR and EPR, with special emphasis on blood component analysis and protein-metal complexes. The final chapters survey the principles and applications of Mössbauer spectroscopy. This book will prove useful to analytical chemists and biologists.
