Abstract:
:STATs promote fundamental cellular processes, marking them as convergence points of many oncogenic and inflammatory pathways. Therefore, aberrant activation of STAT signaling is implicated in a plethora of human diseases, like cancer, inflammation and auto-immunity. Identification of STAT-specific inhibitors is the topic of great practical importance, and various inhibitory strategies are being pursued. An interesting approach includes peptides and peptide-like biopolymers, because they allow the manipulation of STAT signaling without the transfer of genetic material. Phosphopeptides and peptidomimetics directly target STATs by inhibiting dimerization. Despite that a large number of efficient peptide- based STAT3-specific inhibitors have been reported to date, none of them was able to meet the pharmacological requirements to serve as a potent anti-cancer drug. The existing limitations, like metabolic instability and poor cell permeability during in vivo tests, excluded these macromolecules from further clinical development. To overcome these liabilities, in the last five years many advances have been made to develop next generation STAT-specific inhibitors. Here we discuss the pitfalls of current STAT inhibitory strategies and review the progress on the development of peptide-like prodrugs directly targeting STATs. Novel strategies involve screening of high-complexity libraries of random peptides, as specific STAT3 or STAT5 DNA-binding inhibitors, to construct cell permeable peptide aptamers and aptides for cancer therapy. Another new direction is synthesis of negative dominant α-helical mimetics of the STAT3 N-domain, preventing oligomerization on DNA. Moreover, construction of phosphopeptide conjugates with molecules mediating cellular uptake offers new therapeutic possibilities in treatment of cancer, asthma and allergy.
journal_name
Curr Protein Pept Scijournal_title
Current protein & peptide scienceauthors
Szelag M,Wesoly J,Bluyssen HAdoi
10.2174/1389203716666151102103706subject
Has Abstractpub_date
2016-01-01 00:00:00pages
135-46issue
2eissn
1389-2037issn
1875-5550pii
CPPS-EPUB-71505journal_volume
17pub_type
杂志文章,评审abstract::Members of the Really Interesting New Gene (RING) family of proteins are found throughout the cells of eukaryotes and function in processes as diverse as development, oncogenesis, viral replication and apoptosis. There are over 200 members of the RING family where membership is based on the presence of a consensus seq...
journal_title:Current protein & peptide science
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abstract::Knowledge of the existence and structure of intermediates on the reaction pathway is necessary before specific details of the mechanism may be successfully resolved. However, enzymatic catalysis is an extremely fast process. This rapidity of enzyme-catalyzed reactions and the short life times of intermediates represen...
journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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abstract::Intestines are not only major organs for nutrient digestion and absorption, but are also the largest immune organ in pigs. They are essential for maintaining the health and growth of piglets. Fatty acids, including short-chain fatty acids, medium-chain fatty acids, and long-chain polyunsaturated fatty acids, are impor...
journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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更新日期:2001-03-01 00:00:00
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journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
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更新日期:2014-03-01 00:00:00
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journal_title:Current protein & peptide science
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更新日期:2006-06-01 00:00:00
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
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更新日期:2017-01-01 00:00:00
abstract::The majority of tRNA studies has focused on tRNA molecules as pivotal player in the fundamental process of protein synthesis. Mounting studies have unveiled further functions for tRNA beyond protein synthesis, including non-ribosomal amino acid transfer, and regulation of targeted proteolysis. Post-translational N-ter...
journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
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journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
pub_type: 杂志文章,评审
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journal_title:Current protein & peptide science
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abstract::Structure based drug designing is now a popular technique used for increasing the speed of drug designing process. This was made possible by the availability of many protein structures which helped in developing tools to understand the structure function relationships, automated docking and virtual screening. Knowledg...
journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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abstract::To defend themselves from attack by pathogens, plants can rely only on their innate defense systems. Defensins are antimicrobial peptides that contribute to plant immunity by displaying a direct cidal activity against various pathogens, some of which are responsible for plant diseases. These determine a significant de...
journal_title:Current protein & peptide science
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journal_title:Current protein & peptide science
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abstract::Serine proteinases fulfill and facilitate a broad spectrum of biological processes. They are held in check by different specific inhibitors. This delicate balance can be disturbed by genetic defects or exogenous influences and has been shown as the underlying or promoting cause for a large number of different diseases...
journal_title:Current protein & peptide science
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