Improved Histone Deacetylase Inhibitors as Therapeutics for the Neurodegenerative Disease Friedreich’s Ataxia: A New Synthetic Route

Friedreich’s ataxia (FRDA) is caused by transcriptional repression of the nuclear FXN gene encoding the essential mitochondrial protein frataxin. Based on the hypothesis that the acetylation state of the histone proteins is responsible for gene silencing in FRDA, previous work in our lab identified...

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Main Authors: Joel M. Gottesfeld, James R. Rusche, Elisabetta Soragni, Vincent Jacques, Chunping Xu
Format: Article
Language:English
Published: MDPI AG 2011-12-01
Series:Pharmaceuticals
Subjects:
Online Access:http://www.mdpi.com/1424-8247/4/12/1578/
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author Joel M. Gottesfeld
James R. Rusche
Elisabetta Soragni
Vincent Jacques
Chunping Xu
author_facet Joel M. Gottesfeld
James R. Rusche
Elisabetta Soragni
Vincent Jacques
Chunping Xu
author_sort Joel M. Gottesfeld
collection DOAJ
description Friedreich’s ataxia (FRDA) is caused by transcriptional repression of the nuclear FXN gene encoding the essential mitochondrial protein frataxin. Based on the hypothesis that the acetylation state of the histone proteins is responsible for gene silencing in FRDA, previous work in our lab identified a first generation of HDAC inhibitors (pimelic o-aminobenzamides), which increase FXN mRNA in lymphocytes from FRDA patients. Importantly, these compounds also function in a FRDA mouse model to increase FXN mRNA levels in the brain and heart. While the first generation of HDAC inhibitors hold promise as potential therapeutics for FRDA, they have two potential problems: less than optimal brain penetration and metabolic instability in acidic conditions. Extensive optimization focusing on modifying the left benzene ring, linker and the right benzene ring lead to a novel class of HDAC inhibitors that have optimized pharmacological properties (increased brain penetration and acid stability) compared to the previous HDAC inhibitors. This article will describe the chemical synthesis and pharmacological properties of these new HDAC inhibitors.
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spelling doaj.art-14df0754ad924544837a78138dbd98b92022-12-22T03:49:03ZengMDPI AGPharmaceuticals1424-82472011-12-014121578159010.3390/ph4121578Improved Histone Deacetylase Inhibitors as Therapeutics for the Neurodegenerative Disease Friedreich’s Ataxia: A New Synthetic RouteJoel M. GottesfeldJames R. RuscheElisabetta SoragniVincent JacquesChunping XuFriedreich’s ataxia (FRDA) is caused by transcriptional repression of the nuclear FXN gene encoding the essential mitochondrial protein frataxin. Based on the hypothesis that the acetylation state of the histone proteins is responsible for gene silencing in FRDA, previous work in our lab identified a first generation of HDAC inhibitors (pimelic o-aminobenzamides), which increase FXN mRNA in lymphocytes from FRDA patients. Importantly, these compounds also function in a FRDA mouse model to increase FXN mRNA levels in the brain and heart. While the first generation of HDAC inhibitors hold promise as potential therapeutics for FRDA, they have two potential problems: less than optimal brain penetration and metabolic instability in acidic conditions. Extensive optimization focusing on modifying the left benzene ring, linker and the right benzene ring lead to a novel class of HDAC inhibitors that have optimized pharmacological properties (increased brain penetration and acid stability) compared to the previous HDAC inhibitors. This article will describe the chemical synthesis and pharmacological properties of these new HDAC inhibitors.http://www.mdpi.com/1424-8247/4/12/1578/HDAC inhibitorFriedreich’s ataxiaclick chemistry
spellingShingle Joel M. Gottesfeld
James R. Rusche
Elisabetta Soragni
Vincent Jacques
Chunping Xu
Improved Histone Deacetylase Inhibitors as Therapeutics for the Neurodegenerative Disease Friedreich’s Ataxia: A New Synthetic Route
Pharmaceuticals
HDAC inhibitor
Friedreich’s ataxia
click chemistry
title Improved Histone Deacetylase Inhibitors as Therapeutics for the Neurodegenerative Disease Friedreich’s Ataxia: A New Synthetic Route
title_full Improved Histone Deacetylase Inhibitors as Therapeutics for the Neurodegenerative Disease Friedreich’s Ataxia: A New Synthetic Route
title_fullStr Improved Histone Deacetylase Inhibitors as Therapeutics for the Neurodegenerative Disease Friedreich’s Ataxia: A New Synthetic Route
title_full_unstemmed Improved Histone Deacetylase Inhibitors as Therapeutics for the Neurodegenerative Disease Friedreich’s Ataxia: A New Synthetic Route
title_short Improved Histone Deacetylase Inhibitors as Therapeutics for the Neurodegenerative Disease Friedreich’s Ataxia: A New Synthetic Route
title_sort improved histone deacetylase inhibitors as therapeutics for the neurodegenerative disease friedreich s ataxia a new synthetic route
topic HDAC inhibitor
Friedreich’s ataxia
click chemistry
url http://www.mdpi.com/1424-8247/4/12/1578/
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