a(GO:microtubule)
In contrast, the neurofibrillary tangles are intracellular and are rich in tau, a structural protein that is normally associated with microtubuli PubMed:14556719
Fig. 5 shows that the 31 kDa kinase is included in the MAP fraction after three or more cycles of microtubule assembly (lanes l-6), and is also associated with PHFs (lane 7) PubMed:8282104
In this regard, cdk5 is similar to PKA [30], MAP kinase, and GSK-3 [12,17,26], but distinct from PKC or CaMK which do not copurify with microtubules [34] PubMed:8282104
In this regard, cdk5 is similar to PKA [30], MAP kinase, and GSK-3 [12,17,26], but distinct from PKC or CaMK which do not copurify with microtubules [34] PubMed:8282104
In this regard, cdk5 is similar to PKA [30], MAP kinase, and GSK-3 [12,17,26], but distinct from PKC or CaMK which do not copurify with microtubules [34] PubMed:8282104
The microtubule stabilizers paclitaxel and epothilone A countered Aβ42-induced cytoskeletal disruption — and moderated excessive UPR — in neurons 182 . PubMed:30116051
Furthermore, epothilone D countered microtubule disruption and cognitive deficits in aged P301S/P19 AD mice 183 . PubMed:30116051
The microtubule stabilizers paclitaxel and epothilone A countered Aβ42-induced cytoskeletal disruption — and moderated excessive UPR — in neurons 182 . PubMed:30116051
The microtubule stabilizers paclitaxel and epothilone A countered Aβ42-induced cytoskeletal disruption — and moderated excessive UPR — in neurons 182 . PubMed:30116051
In fact, tau oligomers might disrupt microtubule stability and trafficking, thus affecting organelle distribution PubMed:28420982
While functional tau is an unfolded monomeric protein that stabilizes microtubules, regulates neurite growth, and monitors axonal transport of organelles (Medina and Avila, 2014), dysfunctional tau acquires a new toxic function PubMed:28420982
Tau proteins, microtubule-associated proteins, take part in the formation of microtubules for the sake of maintaining the stability of microtubules PubMed:29626319
Overexpressed tau was hyperphosphorylated and resulted in decreased MT density and greater fragmentation. Using genetic screen, a histone deacetylase 6 (HDAC6) null mutation rescued tau-induced MT defects in both muscles and neurons. Genetic and pharmacological inhibition of the tubulin-specific deacetylase activity of HDAC6 indicates that the rescue effect may be mediated by increased MT acetylation. PubMed:23487739
Overexpressed tau was hyperphosphorylated and resulted in decreased MT density and greater fragmentation. Using genetic screen, a histone deacetylase 6 (HDAC6) null mutation rescued tau-induced MT defects in both muscles and neurons. Genetic and pharmacological inhibition of the tubulin-specific deacetylase activity of HDAC6 indicates that the rescue effect may be mediated by increased MT acetylation. PubMed:23487739
Deregulation of PP2A/Bα alone also affects microtubule stability (Nunbhakdi-Craig et al., 2007) and neurite outgrowth (Sontag et al.,2010) in neuroblastoma cells PubMed:24653673
Deregulation of PP2A/Bα alone also affects microtubule stability (Nunbhakdi-Craig et al., 2007) and neurite outgrowth (Sontag et al.,2010) in neuroblastoma cells PubMed:24653673
Paclitaxel reversed Aβ-induced microtubule disruption and restored autophagosomal transport in neurons [161], while a similar compound, epothilone D/BMS-241027, reduced tauopathy and improved cognition in P301S transgenic mice [162] although the compound did not progress beyond Phase I clinical testing PubMed:29758300
At the later stages, the mutant-tau lines showed microtubule loss and non-apoptotic neuronal death, paralleled by a complete loss of touch response (62). PubMed:29191965
At the later stages, the mutant-tau lines showed microtubule loss and non-apoptotic neuronal death, paralleled by a complete loss of touch response (62). PubMed:29191965
This leads to accumulation of mitochondria in the cell body where they cluster near the microtubule center [6]. PubMed:25374103
The tau-protein is a natively soluble protein that plays a key role in the dynamics of microtubules PubMed:25374103
In cultured neurons, missorted dendritic tau may mediate toxicity that is induced by Aβ or other stressors by promoting the translocation of tubulin tyrosine ligase-like enzyme 6 (TTLL6) into dendrites, and the severing of microtubules by spastin PubMed:26631930
Among various identified MAPs, microtubule-associated protein 2 (MAP2), which belongs to the MAP2/Tau family, is enriched in the brain and especially in dendrites, where it contributes to microtubule stabilization and overall dendritic architecture. PubMed:30061532
The biological implication behind an impairment of microtubule dynamics is confirmed in post-mortem schizophrenic brain samples, as well as in mouse models of schizophrenia, where mTOR-dependent autophagy dysfunction is accompanied by an altered gene expression and protein levels of the microtubule-associated protein 6 (MAP6) PubMed:30061532
In contrast, the neurofibrillary tangles are intracellular and are rich in tau, a structural protein that is normally associated with microtubuli PubMed:14556719
In this regard, cdk5 is similar to PKA [30], MAP kinase, and GSK-3 [12,17,26], but distinct from PKC or CaMK which do not copurify with microtubules [34] PubMed:8282104
In this regard, cdk5 is similar to PKA [30], MAP kinase, and GSK-3 [12,17,26], but distinct from PKC or CaMK which do not copurify with microtubules [34] PubMed:8282104
Fig. 5 shows that the 31 kDa kinase is included in the MAP fraction after three or more cycles of microtubule assembly (lanes l-6), and is also associated with PHFs (lane 7) PubMed:8282104
In this regard, cdk5 is similar to PKA [30], MAP kinase, and GSK-3 [12,17,26], but distinct from PKC or CaMK which do not copurify with microtubules [34] PubMed:8282104
Overexpressed tau was hyperphosphorylated and resulted in decreased MT density and greater fragmentation. Using genetic screen, a histone deacetylase 6 (HDAC6) null mutation rescued tau-induced MT defects in both muscles and neurons. Genetic and pharmacological inhibition of the tubulin-specific deacetylase activity of HDAC6 indicates that the rescue effect may be mediated by increased MT acetylation. PubMed:23487739
Microtubule-based vesicular trafficking is essential for delivery of autophagosomes to lysosomes and subsequent fusion [46], and impaired dynein-mediated trafficking is associated with impaired autophagosome/ lysosome fusion and reduced protein turnover [47,48]. PubMed:18930136
In cultured neurons, missorted dendritic tau may mediate toxicity that is induced by Aβ or other stressors by promoting the translocation of tubulin tyrosine ligase-like enzyme 6 (TTLL6) into dendrites, and the severing of microtubules by spastin PubMed:26631930
The biological implication behind an impairment of microtubule dynamics is confirmed in post-mortem schizophrenic brain samples, as well as in mouse models of schizophrenia, where mTOR-dependent autophagy dysfunction is accompanied by an altered gene expression and protein levels of the microtubule-associated protein 6 (MAP6) PubMed:30061532
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If you find BEL Commons useful in your work, please consider citing: Hoyt, C. T., Domingo-Fernández, D., & Hofmann-Apitius, M. (2018). BEL Commons: an environment for exploration and analysis of networks encoded in Biological Expression Language. Database, 2018(3), 1–11.