Therapeutic targeting expanded DNA using cyclic pyrrole-imidazole polyamide in CAG/CTG triplet repeat neurological diseases.
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- Kawakubo Kosuke
- Dept. Genomic Neurology, IMEG., Kumamoto Univ.
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- Ikenoshita Susumu
- Dept. Genomic Neurology, IMEG., Kumamoto Univ.
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- Matsuo Kazuya
- Dept. Genomic Neurology, IMEG., Kumamoto Univ.
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- Asamitsu Sefan
- Dept. Genomic Neurology, IMEG., Kumamoto Univ.
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- Yabuki Yasushi
- Dept. Genomic Neurology, IMEG., Kumamoto Univ.
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- Sugiyama Hiroshi
- Dept. Chem., Grad. Sch. Sci., Kyoto Univ.
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- Shioda Norifumi
- Dept. Genomic Neurology, IMEG., Kumamoto Univ.
Bibliographic Information
- Other Title
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- CAG/CTGトリプレットリピート病における環状ピロール-イミダゾールポリアミドを用いた伸長DNA標的治療法の開発
Abstract
<p>Expanded CAG/CTG triplet repeats are causal in a number of human neurological disorders, and can be classified into two types according to the location of the repeats; 1) The CAG repeat expansion in coding regions, including Huntington's disease (HD), spinocerebellar ataxia (SCA) type-1, 2, 3, 6, 7, and 17, spinal and bulbar muscular atrophy (SBMA), and dentatorubral pallidoluysian atrophy (DRPLA). 2) The CAG/CTG repeat expansion in noncoding, especially in 3' untranslated regions (3'-UTRs), including myotonic dystrophy type 1 (DM1) and SCA8. Here, we show a DNA targeting compound, cyclic Pyrrole-Imidazole Polyamide (cPIP) can suppress the pathogenesis of coding and noncoding CAG/CTG repeat expansion diseases. cPIP bound to duplex as well as hairpin CAG/CTG DNA specifically, inhibiting the RNA polymerase II passage in a repeat length dependent manner in vitro. cPIP inhibits the CAG/CTG repeat-derived mRNA transcript, result in reduction of pathogenic CUG-RNA foci and polyglutamine (polyQ) accumulations. This study presents a candidate compound for targeting pathogenic expanded CAG/CTG repeat DNA, demonstrating the concept of lowering levels of repeat disease-causing RNAs and proteins.</p>
Journal
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- Proceedings for Annual Meeting of The Japanese Pharmacological Society
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Proceedings for Annual Meeting of The Japanese Pharmacological Society 95 (0), 1-SS-27-, 2022
Japanese Pharmacological Society
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Keywords
Details 詳細情報について
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- CRID
- 1390291767695071104
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- ISSN
- 24354953
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed