Use of STAT1 Inhibitors in the Treatment of Brain I/R Injury and Neurodegenerative Diseases

Author(s): F. H. Ebner, E. Darra, S. Mariotto, H. Suzuki, E. Cavalieri

Journal Name: Central Nervous System Agents in Medicinal Chemistry
Formerly Current Medicinal Chemistry - Central Nervous System Agents

Volume 11 , Issue 1 , 2011

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In the etiology of brain injury associated to ischemia/reperfusion (I/R) and neurodegenerative diseases, a critical involvement of excessive activation of signal transducer and activator of transcription 1 (STAT1) and successive induction of iNOS expression has widely been evidenced. Any compound capable to down-regulate STAT1 activation seems to represent a new, promising anti-inflammatory drug. Among plant compounds, only a few have shown to possess anti-STAT1 activity. Among them, epigallocatechin-3-gallate (EGCG), the main polyphenol present in green tea leaves, efficiently protects heart from I/R injury and this action is strictly correlated to its anti-STAT1 property. Hyperforin, the non-polyphenolic compound present in St. Johns wort, attenuates β-cell death induced by interferon-γ (IFN-γ) by strongly down-regulating STAT1 activation. STAT1, therefore, seems to represent a new molecular target of the protective treatment also against brain injury associated to a number of brain pathologies. Either understanding the molecular mechanism of anti-STAT1 action of these compounds or identification of other anti-STAT1 compounds are urged.

Keywords: STAT1, inhibitor, brain, ischemia, reperfusion, injury, neurodegenerative diseases, nitric oxide (NO), NO synthase (NOS), neuronal NOS, endothelial NOS, inducible NOS, NF-kappaB, JAK/STAT pathway, flavonoids, epigallocatechin-3-gallate, hyperfptin, stroke, microglia, inflammation, pro- and anti-inflammatory cytokines, blood brain barrier, ageing, Arbutus unedo, anti-inflammatory drug

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Article Details

Year: 2011
Page: [2 - 7]
Pages: 6
DOI: 10.2174/187152411794961077

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