Abstract:
:Nucleosides constitute an extensive group of natural and chemically modified compounds that display a wide range of structures and activities. Different biocatalysts have been developed for their preparation, but the choice of commercially available enzymes is limited. Therefore, the search of new biocatalysts is particularly attractive. In this sense, microorganisms are a vast source of enzymatic diversity that can be directly used as a whole cell biocatalysts providing a potential cheaper and suitable route for industrial applications. METHODS:This work makes particular emphasis on the following methods: the biocatalyzed whole cell synthesis of nucleosides mediated by phosphorylases, key biocatalyzed steps involved in other chemoenzymatic routes to prepare nucleoside analogues and the transformation of nucleosides in derivatives with particular properties. RESULTS:The literature covered in this work confirms that biocatalytic procedures that make use of whole cell systems can be successfully applied to obtain a wide variety of nucleoside analogues and their derivatives, providing alternative and complementary routes to traditional chemistry. The direct use of microbial whole cells as biocatalysts affords competitive results since it avoids the cumbersome procedures involved in enzyme isolation and facilitates multienzymatic processes. These biocatalysts also maintain the enzymes in their natural environment, protecting their activities from reaction conditions. CONCLUSION:Although the information presented herein shows that these methodologies have reached a high degree of development, it is expected that future contributions of protein engineering and nucleoside metabolism knowledge, among other disciplines, will expand the already wide range of applications in nucleoside chemistry of whole cell biocatalysis.
journal_name
Curr Pharm Desjournal_title
Current pharmaceutical designauthors
Lewkowicz ES,Iribarren AMdoi
10.2174/1381612823666171011101133subject
Has Abstractpub_date
2017-10-11 00:00:00eissn
1381-6128issn
1873-4286pii
CPD-EPUB-86321pub_type
杂志文章abstract::The state-of-the-art in the investigation of drugs release from Silica-based ordered Mesoporous Materials (SMMs) is reviewed. First, the SMM systems used like host matrixes are described. Then, the model drugs studied until now, including their pharmacological action, structure and the mesoporous matrix employed for e...
journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
doi:10.2174/1381612822666151106121419
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journal_title:Current pharmaceutical design
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doi:10.2174/1381612820666141027113923
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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journal_title:Current pharmaceutical design
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abstract::Visual emotional stimulation is supposed to elicit psycho-vegetative reactions, which are similar to as the ones elicited by exposure to actual experience. Visual stimulation paradigms have been widely used in studies on agoraphobia with and without panic disorder. However, the applied imagery has hardly ever been dis...
journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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pub_type: 杂志文章,评审
doi:10.2174/138161209789058084
更新日期:2009-01-01 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
doi:10.2174/138161212802002724
更新日期:2012-01-01 00:00:00
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
doi:10.2174/1381612822666161018155247
更新日期:2017-11-28 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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更新日期:2009-01-01 00:00:00
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journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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更新日期:1999-09-01 00:00:00
abstract::Naturally occurring and chemically modified ribonucleosides have interesting bioactive effects. Dietary ribonucleosides are ingested mainly as nucleoproteins and are converted in the course of intestinal digestion to monomeric compounds. Different bioactive effects of dietary ribonucleosides have been described, inclu...
journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
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更新日期:2007-01-01 00:00:00
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journal_title:Current pharmaceutical design
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更新日期:2016-01-01 00:00:00
abstract:BACKGROUND & AIMS:Nowadays, the world is facing a common problem that the population aging process is accelerating. How to delay metabolic disorders in middle-aged and elderly people, has become a hot scientific and social issue worthy of attention. The liver plays an important role in lipid metabolism, and abnormal li...
journal_title:Current pharmaceutical design
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更新日期:2020-01-01 00:00:00
abstract::Melanoma is the deadliest type of skin cancers, accounting for more than 80% of skin cancer mortality. Although melanoma was known very early in the history of medicine, treatment for this disease had remained largely the same until very recently. Previous treatment options, including removal surgery and systemic chem...
journal_title:Current pharmaceutical design
pub_type: 杂志文章,评审
doi:10.2174/1381612826666200130091318
更新日期:2020-01-01 00:00:00