Pharmacological Aspects of Molecular Recognition


Book Description

In the monograph, recognition of the receptors by drugs is described as a complex phenomenon that has not been yet entirely understood. The description of molecular structure information necessary to achieve specific receptors without getting lost among huge amounts of non-specific acceptors is present. Various examples of receptor' binding features for narcotic analgetics, neuroleptics, tranquilisators, ligands of acetylcholine receptors are also included. The three stages of drug interaction with acceptors are considered, namely, distant stage, stage of orientation of the molecule on the acceptor, stage of molecule fixation. Kinetics and thermodynamics of these stages as well as factors preventing drug binding to non-specific acceptors are described. Some considerations concerning methods of changing activity and selectivity of drugs are given. Literature information needed for analysis of molecular mechanisms of interactions between drugs and receptors is present.




Drug-like Properties: Concepts, Structure Design and Methods


Book Description

Of the thousands of novel compounds that a drug discovery project team invents and that bind to the therapeutic target, typically only a fraction of these have sufficient ADME/Tox properties to become a drug product. Understanding ADME/Tox is critical for all drug researchers, owing to its increasing importance in advancing high quality candidates to clinical studies and the processes of drug discovery. If the properties are weak, the candidate will have a high risk of failure or be less desirable as a drug product. This book is a tool and resource for scientists engaged in, or preparing for, the selection and optimization process. The authors describe how properties affect in vivo pharmacological activity and impact in vitro assays. Individual drug-like properties are discussed from a practical point of view, such as solubility, permeability and metabolic stability, with regard to fundamental understanding, applications of property data in drug discovery and examples of structural modifications that have achieved improved property performance. The authors also review various methods for the screening (high throughput), diagnosis (medium throughput) and in-depth (low throughput) analysis of drug properties. - Serves as an essential working handbook aimed at scientists and students in medicinal chemistry - Provides practical, step-by-step guidance on property fundamentals, effects, structure-property relationships, and structure modification strategies - Discusses improvements in pharmacokinetics from a practical chemist's standpoint




Molecular Recognition in Pharmacology


Book Description

This unique volume traces the behavior of the drug substance, starting from the initial pre-contact stage, and ending with the formation of the complex. Molecular recognition lies in the foundation of every life form and includes many mysteries. Currently, studies on this topic in pharmacology are limited to determining the properties of complexes of medicinal substances (drugs) with specific (complementary) biomolecules: receptors, enzymes, ion channels etc. The results present the mechanisms preventing drugs from such non-specific binding. This direction is very fruitful, although the phenomenon of molecular recognition is far wider. Features Presents the basics of thermodynamics and kinetics of complex formation between ligands and receptors Selected novel therapeutic concepts are tested and validated Provides a review of the pharmacophore approach and drug design methods By its nature, pharmacology is a multi-disciplinary science, hence, disciplinary areas include chemistry, biology and neuroscience Discusses hot topics including 3D structure determination techniques and in silico methods and neural networks The main theme of the book is the consideration of mechanisms created by nature to protect physiologically active substances from being stuck on nonspecific acceptors in the body. The book describes the materials that aid in the development of new medicinal substances. It is intended for researchers, as well as upper-level undergraduate and graduate students interested in the problems of molecular pharmacology and drug design.




The Molecular Theory of Gases and Liquids


Book Description

An essential cross-disciplinary reference for molecular interactions Molecular Theory of Gases and Liquids offers a rigorous, comprehensive treatment of molecular characteristics and behaviors in the gaseous and fluid states. A unique cross-disciplinary approach provides useful insight for students of chemistry, chemical engineering, fluid dynamics, and a variety of related fields, with thorough derivations and in-depth explanations throughout. Appropriate for graduate students and working scientists alike, this book details advanced concepts without sacrificing depth of coverage or technical detail.




The History of Cyclodextrins


Book Description

This book presents the historical development of Cyclodextrins by scientists who have made outstanding contribution to the field. Cyclodextrins are safe, cage-like molecules that have found major applications in many industrial sectors such as medicine, food, agriculture, environment and chemistry.




Drug Efflux Pumps in Cancer Resistance Pathways: From Molecular Recognition and Characterization to Possible Inhibition Strategies in Chemotherapy


Book Description

Drug Efflux Pumps in Cancer Resistance Pathways: From Molecular Recognition and Characterization to Possible Inhibition Strategies in Chemotherapy, Volume Seven, describes the fundamental aspects of efflux pumps of the ATP-binding cassette superfamily in cancer resistance pathways, along with strategies to target and improve chemotherapy efficacy. Pumps of the ATP-binding cassette superfamily (ABCs) regulate the access of drugs to the intracellular space. In this context, the overexpression of ABCs is a well-known mechanism of multidrug resistance in cancer and is associated with therapeutic failure. Cancer types discussed include breast, endocrine, hematologic, gastrointestinal, musculoskeletal, lung, skin and central nervous system cancers. The book is a valuable source for researchers and advanced students in cancer, biology, pharmacology, pharmaceutical sciences, biomaterials and medical/clinical sciences that are interested in accessing a comprehensive compendium on efflux pumps in mechanisms of cancer resistance. Offers comprehensive and detailed descriptions of the basic aspects of efflux pumps in a very schematic and didactic manner Describes the involvement of efflux pumps in cancer resistance in different cancer types Encompasses an updated overview on state-of-the-art approaches that capitalize on their inhibition to improve chemotherapy and overcome resistance




Beyond the Molecular Frontier


Book Description

Chemistry and chemical engineering have changed significantly in the last decade. They have broadened their scopeâ€"into biology, nanotechnology, materials science, computation, and advanced methods of process systems engineering and controlâ€"so much that the programs in most chemistry and chemical engineering departments now barely resemble the classical notion of chemistry. Beyond the Molecular Frontier brings together research, discovery, and invention across the entire spectrum of the chemical sciencesâ€"from fundamental, molecular-level chemistry to large-scale chemical processing technology. This reflects the way the field has evolved, the synergy at universities between research and education in chemistry and chemical engineering, and the way chemists and chemical engineers work together in industry. The astonishing developments in science and engineering during the 20th century have made it possible to dream of new goals that might previously have been considered unthinkable. This book identifies the key opportunities and challenges for the chemical sciences, from basic research to societal needs and from terrorism defense to environmental protection, and it looks at the ways in which chemists and chemical engineers can work together to contribute to an improved future.




Textbook of Drug Design and Discovery, Third Edition


Book Description

Building on the success of the previous editions, Textbook of Drug Design and Discovery has been thoroughly revised and updated to provide a complete source of information on all facets of drug design and discovery for students of chemistry, pharmacy, pharmacology, biochemistry, and medicine. The book follows drug design from the initial lead identification through optimization and structure-activity relationship with reference to the final processes of clinical evaluation and registration. Chapters investigate the design of enzyme inhibitors and drugs for particular cellular targets such as ion channels and receptors, and also explore specific classes of drug such as peptidomimetics, antivirals and anticancer agents. The use of gene technology in pharmaceutical research, computer modeling techniques, and combinatorial approaches are also included.




The Weak Hydrogen Bond


Book Description

The weak or non-conventional hydrogen bond has been subject of intense scrutiny over recent years in several fields, in particular in structural chemistry, structural biology, and also in the pharmaceutical sciences. There is today a large body of experimental and theoretical evidenceconfirming that hydrogen bonds like C-H...O, N-H...pi, C-H...pi and even bonds like O-H...metal play distinctive roles in molecular recognition, guiding molecular association, and in determining molecular and supramolecular architectures. The relevant compound classes include organometalliccomplexes, organic and bio-organic systems, and also DNA and proteins. The book provides a comprehensive assessment of this interaction type, and is of interest to all those interested in structural and supramolecular science, including fields as crystal engineering and drug design.




Basics of Molecular Recognition


Book Description

Basics of Molecular Recognition explores fundamental recognition principles between monomers or macromolecules that lead to diverse biological functions. Based on the author's longtime courses, the book helps readers understand the structural aspects of macromolecular recognition and stimulates further research on whether molecules similar to DNA o