From production of peptides in milligram amounts for research to multi-tons quantities for drugs of the future
ABSTRACT Peptides are key to modern drug discovery. This article reviews the requirements for bulk production of peptides and how it affects research and production of smaller scales. Peptides, as modern drugs, are currently produced in millions in mg-scale for research purpose, in order to better understand the function of biological systems. Some newly discovered sequences form the basis of modern drugs and are now produced in multi-tons. The most popular example is the T-20 peptide (Fuzeon), which is the first peptide produced at such scale by a combination of solid phase and solution phase methodologies. This particular peptide sequence has the ability to dock on the surface of the HIV virus and block the virus from entering into a human blood cell, helping patient life conditions. A multi-ton scale production was made necessary based on the high number of patients, the socio-economical importance of the disease and the strong support by governmental institutions such as the FDA. Fuzeon is the first peptide-based drug that is produced in multi-tons on solid support. This had revolutionary effects on the whole peptide synthesis techniques in general including the production of the starting materials. It also had a positive impact on the cost-effectiveness of peptides for research, as the standard technique for producing peptides in research quantities is solid phase chemistry. The decrease of the cost of all starting materials will lead to an increase of the number of produced peptides, which will certainly bring new interesting and effective sequences to be used as novel drugs.
SourceAvailable from: Jon-Paul Bingham01/2014; 4(5). DOI:10.4172/2161-0444.1000180
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ABSTRACT: Abstract Dendrimers are highly branched polymers with tunable surface topology. This polymer has spherical core-shell nanoarchitecture with a high density of surface functional groups. It is available in a number of different generations and size making it a diverse nanocarrier for biomedical applications. Drugs can be loaded in multiple ways including complexation and/or conjugation to surface functional groups and/or encapsulation inside the core of the dendrimers. Dendrimers have been explored as drug delivery vehicles by various routes of drug administration and for other biomedical applications. The chapter provides an overview of physicochemical properties of dendrimers and its various biomedical applications.Natural and Synthetic Biomedical Polymers, Edited by Deng, Sangamesh G KumbarCato T LaurencinMeng, 01/2014: pages 243-257; Elsevier., ISBN: 9780123969835