Histone deacetylase 6 interacts with the microtubule-associated protein tau.
Histone deacetylase 6 interacts with the microtubule-associated protein tau.
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DOI:
10.1111/j.1471-4159.2008.05564.x
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发表时间:
2008-09
影响因子:
4.7
通讯作者:
Johnson GV
中科院分区:
文献类型:
--
作者:
Ding H;Dolan PJ;Johnson GV
Histone deacetylase 6 (HDAC6), a unique cytoplasmic deacetylase, likely plays a role in neurodegeneration by coordinating cell responses to abnormal protein aggregation. Here we provide in vitro and in vivo evidence that HDAC6 interacts with tau, a microtubule-associated protein that forms neurofibrillary tangles in Alzheimer’s disease (AD). This interaction is mediated by microtubule binding domain on tau and SE14 domain on HDAC6. Treatment with tubacin, a selective inhibitor of tubulin deacetylation activity of HDAC6, did not disrupt HDAC6-tau interaction. Nonetheless tubacin treatment attenuated site-specific tau phosphorylation, as did shRNA-mediated knockdown of HDAC6. Proteasome inhibition potentiated HDAC6-tau interaction and facilitated the concentration and co-localization of HDAC6 and tau in a perinuclear aggresome-like compartment independent of HDAC6 tubulin deacetylase activity. Furthermore, we observed that in AD brains the protein level of HDAC6 was significantly increased. These findings establish HDAC6 as a tau-interacting protein and as a potential modulator of tau phosphorylation and accumulation.
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