A Novel Microtubule-Tau Association Enhancer and Neuroprotective Drug Candidate: Ac-SKIP
Activity-dependent neuroprotective protein (ADNP) has been initially discovered through its eight amino acid sequence NAPVSIPQ, which shares SIP motif with SALLRSIPA – a peptide derived from activity-dependent neurotrophic factor (ADNF). Mechanistically, both NAPVSIPQ and SALLRSIPA contain a SIP mot...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
Frontiers Media S.A.
2019-10-01
|
Series: | Frontiers in Cellular Neuroscience |
Subjects: | |
Online Access: | https://www.frontiersin.org/article/10.3389/fncel.2019.00435/full |
id |
doaj-c39f2f0810264cba8171b15377f62893 |
---|---|
record_format |
Article |
spelling |
doaj-c39f2f0810264cba8171b15377f628932020-11-25T02:12:27ZengFrontiers Media S.A.Frontiers in Cellular Neuroscience1662-51022019-10-011310.3389/fncel.2019.00435474559A Novel Microtubule-Tau Association Enhancer and Neuroprotective Drug Candidate: Ac-SKIPYanina Ivashko-PachimaIllana GozesActivity-dependent neuroprotective protein (ADNP) has been initially discovered through its eight amino acid sequence NAPVSIPQ, which shares SIP motif with SALLRSIPA – a peptide derived from activity-dependent neurotrophic factor (ADNF). Mechanistically, both NAPVSIPQ and SALLRSIPA contain a SIP motif that is identified as a variation of SxIP domain, providing direct interaction with microtubule end-binding proteins (EBs). The peptide SKIP was shown before to provide neuroprotection in vitro and protect against Adnp-related axonal transport deficits in vivo. Here we show, for the first time that SKIP enhanced microtubule dynamics, and prevented Tau-microtubule dissociation and microtubule disassembly induced by the Alzheimer’s related zinc intoxication. Furthermore, we introduced, CH3CO-SKIP-NH2 (Ac-SKIP), providing efficacious neuroprotection. Since microtubule – Tau organization and dynamics is central in axonal microtubule cytoskeleton and transport, tightly related to aging processes and Alzheimer’s disease, our current study provides a compelling molecular explanation to the in vivo activity of SKIP, placing SKIP motif as a central focus for MT-based neuroprotection in tauopathies with axonal transport implications.https://www.frontiersin.org/article/10.3389/fncel.2019.00435/fulltaumicrotubulesEBsADNPSKIP |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yanina Ivashko-Pachima Illana Gozes |
spellingShingle |
Yanina Ivashko-Pachima Illana Gozes A Novel Microtubule-Tau Association Enhancer and Neuroprotective Drug Candidate: Ac-SKIP Frontiers in Cellular Neuroscience tau microtubules EBs ADNP SKIP |
author_facet |
Yanina Ivashko-Pachima Illana Gozes |
author_sort |
Yanina Ivashko-Pachima |
title |
A Novel Microtubule-Tau Association Enhancer and Neuroprotective Drug Candidate: Ac-SKIP |
title_short |
A Novel Microtubule-Tau Association Enhancer and Neuroprotective Drug Candidate: Ac-SKIP |
title_full |
A Novel Microtubule-Tau Association Enhancer and Neuroprotective Drug Candidate: Ac-SKIP |
title_fullStr |
A Novel Microtubule-Tau Association Enhancer and Neuroprotective Drug Candidate: Ac-SKIP |
title_full_unstemmed |
A Novel Microtubule-Tau Association Enhancer and Neuroprotective Drug Candidate: Ac-SKIP |
title_sort |
novel microtubule-tau association enhancer and neuroprotective drug candidate: ac-skip |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Cellular Neuroscience |
issn |
1662-5102 |
publishDate |
2019-10-01 |
description |
Activity-dependent neuroprotective protein (ADNP) has been initially discovered through its eight amino acid sequence NAPVSIPQ, which shares SIP motif with SALLRSIPA – a peptide derived from activity-dependent neurotrophic factor (ADNF). Mechanistically, both NAPVSIPQ and SALLRSIPA contain a SIP motif that is identified as a variation of SxIP domain, providing direct interaction with microtubule end-binding proteins (EBs). The peptide SKIP was shown before to provide neuroprotection in vitro and protect against Adnp-related axonal transport deficits in vivo. Here we show, for the first time that SKIP enhanced microtubule dynamics, and prevented Tau-microtubule dissociation and microtubule disassembly induced by the Alzheimer’s related zinc intoxication. Furthermore, we introduced, CH3CO-SKIP-NH2 (Ac-SKIP), providing efficacious neuroprotection. Since microtubule – Tau organization and dynamics is central in axonal microtubule cytoskeleton and transport, tightly related to aging processes and Alzheimer’s disease, our current study provides a compelling molecular explanation to the in vivo activity of SKIP, placing SKIP motif as a central focus for MT-based neuroprotection in tauopathies with axonal transport implications. |
topic |
tau microtubules EBs ADNP SKIP |
url |
https://www.frontiersin.org/article/10.3389/fncel.2019.00435/full |
work_keys_str_mv |
AT yaninaivashkopachima anovelmicrotubuletauassociationenhancerandneuroprotectivedrugcandidateacskip AT illanagozes anovelmicrotubuletauassociationenhancerandneuroprotectivedrugcandidateacskip AT yaninaivashkopachima novelmicrotubuletauassociationenhancerandneuroprotectivedrugcandidateacskip AT illanagozes novelmicrotubuletauassociationenhancerandneuroprotectivedrugcandidateacskip |
_version_ |
1724909306798669824 |