HDAC inhibition leads to age-dependent opposite regenerative effect upon PTEN deletion in rubrospinal axons after SCI
Copyright © 2020 Elsevier Inc. All rights reserved..
Epigenetic changes associated with aging have been linked to functional and cognitive deficits in the adult CNS. Histone acetylation is involved in the control of the transcription of plasticity and regeneration-associated genes. The intrinsic axon growth capacity in the CNS is negatively regulated by phosphatase and tensin homolog (Pten). Inhibition of Pten is an effective method to stimulate axon growth following an injury to the optic nerve, corticospinal tract (CST), and rubrospinal tract (RST). Our laboratory has previously demonstrated that the deletion of Pten in aged animals diminishes the regenerative capacity in rubrospinal neurons. We hypothesize that changes in the chromatin structure might contribute to this age-associated decline. Here, we assessed whether Trichostatin A (TSA), a histone deacetylases (HDACs) inhibitor, reverses the decline in regeneration in aged Ptenf/f mice. We demonstrate that HDAC inhibition induces changes in the expression of GAP43 in both young and aged Ptenf/f mice. The regenerative capacity of the RST did not improve significantly in young mice, neither their motor function on the horizontal ladder or cylinder test after TSA treatment for 7 days. Interestingly, TSA treatment in the aged mice worsened their motor function deficits, suggesting that the systemic treatment with TSA might have an overall adverse effect on motor recovery after SCI in aged animals.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:90 |
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| Enthalten in: |
Neurobiology of aging - 90(2020) vom: 01. Juni, Seite 99-109 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Seira, Oscar [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 29.10.2020 Date Revised 29.10.2020 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.neurobiolaging.2020.02.006 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM30759579X |
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| 245 | 1 | 0 | |a HDAC inhibition leads to age-dependent opposite regenerative effect upon PTEN deletion in rubrospinal axons after SCI |
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| 520 | |a Copyright © 2020 Elsevier Inc. All rights reserved. | ||
| 520 | |a Epigenetic changes associated with aging have been linked to functional and cognitive deficits in the adult CNS. Histone acetylation is involved in the control of the transcription of plasticity and regeneration-associated genes. The intrinsic axon growth capacity in the CNS is negatively regulated by phosphatase and tensin homolog (Pten). Inhibition of Pten is an effective method to stimulate axon growth following an injury to the optic nerve, corticospinal tract (CST), and rubrospinal tract (RST). Our laboratory has previously demonstrated that the deletion of Pten in aged animals diminishes the regenerative capacity in rubrospinal neurons. We hypothesize that changes in the chromatin structure might contribute to this age-associated decline. Here, we assessed whether Trichostatin A (TSA), a histone deacetylases (HDACs) inhibitor, reverses the decline in regeneration in aged Ptenf/f mice. We demonstrate that HDAC inhibition induces changes in the expression of GAP43 in both young and aged Ptenf/f mice. The regenerative capacity of the RST did not improve significantly in young mice, neither their motor function on the horizontal ladder or cylinder test after TSA treatment for 7 days. Interestingly, TSA treatment in the aged mice worsened their motor function deficits, suggesting that the systemic treatment with TSA might have an overall adverse effect on motor recovery after SCI in aged animals | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Aging | |
| 650 | 4 | |a Epigenetics | |
| 650 | 4 | |a Histone deacetylase | |
| 650 | 4 | |a Pten | |
| 650 | 4 | |a Regeneration | |
| 650 | 4 | |a Spinal cord injury | |
| 650 | 7 | |a GAP-43 Protein |2 NLM | |
| 650 | 7 | |a Histone Deacetylase Inhibitors |2 NLM | |
| 650 | 7 | |a Hydroxamic Acids |2 NLM | |
| 650 | 7 | |a trichostatin A |2 NLM | |
| 650 | 7 | |a 3X2S926L3Z |2 NLM | |
| 650 | 7 | |a PTEN Phosphohydrolase |2 NLM | |
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| 650 | 7 | |a Pten protein, mouse |2 NLM | |
| 650 | 7 | |a EC 3.1.3.67 |2 NLM | |
| 650 | 7 | |a Histone Deacetylases |2 NLM | |
| 650 | 7 | |a EC 3.5.1.98 |2 NLM | |
| 700 | 1 | |a Wang, Wenchun |e verfasserin |4 aut | |
| 700 | 1 | |a Lee, Sharon |e verfasserin |4 aut | |
| 700 | 1 | |a Roskams, Jane |e verfasserin |4 aut | |
| 700 | 1 | |a Tetzlaff, Wolfram |e verfasserin |4 aut | |
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