bp(GO:"anterograde axonal transport")
Collectively, these studies indicate that inhibition of anterograde FAT represents a toxic effect common to all tau aggregates, regardless of isoform composition PubMed:27574109
Similarly, perfusion of squid axoplasms with hT39, hT37 and hT23 aggregates significantly impaired anterograde FAT (Fig. 4A) when compared to the respective monomers (all at 2 μM) PubMed:27574109
Similarly, perfusion of squid axoplasms with hT39, hT37 and hT23 aggregates significantly impaired anterograde FAT (Fig. 4A) when compared to the respective monomers (all at 2 μM) PubMed:27574109
Pairwise comparisons within tau species showed that hT24 aggregates produced significantly more inhibition of anterograde FAT when compared to hT34 and hT39 aggregates. PubMed:27574109
Perfusion of hT40, hT34 and hT24 aggregates into squid axoplasms significantly impaired anterograde transport (Fig. 4A) when compared to the respective monomers (all at 2 μM). PubMed:27574109
Pairwise comparisons within tau species showed that hT24 aggregates produced significantly more inhibition of anterograde FAT when compared to hT34 and hT39 aggregates. PubMed:27574109
Perfusion of hT40, hT34 and hT24 aggregates into squid axoplasms significantly impaired anterograde transport (Fig. 4A) when compared to the respective monomers (all at 2 μM). PubMed:27574109
Pairwise comparisons within tau species showed that hT24 aggregates produced significantly more inhibition of anterograde FAT when compared to hT34 and hT39 aggregates. PubMed:27574109
Perfusion of hT40, hT34 and hT24 aggregates into squid axoplasms significantly impaired anterograde transport (Fig. 4A) when compared to the respective monomers (all at 2 μM). PubMed:27574109
Similarly, perfusion of squid axoplasms with hT39, hT37 and hT23 aggregates significantly impaired anterograde FAT (Fig. 4A) when compared to the respective monomers (all at 2 μM) PubMed:27574109
Highlighting the relevance of these findings to human disease, pS422 tau was found to colocalize with tau oligomers and with a fraction of tau showing increased PAD exposure in the human AD brain. This study identifies novel effects of pS422 on tau biochemical properties, including prolonged nucleation and enhanced dimer formation, which correlate with a distinct inhibitory effect on FAT. PubMed:27373205
Most recently, this role became even more puz- zling, since APP was implemented as a kinesin-1 receptor (Kamal et al., 2000; 2001). APP apparently binds to the light chain of kinesin-1, which itself is responsible for anterograde axonal transport and consists of two light chains (KLC) associated with two heavy chains (KIF5B). PubMed:12428809
Deletion of the C-terminus of APP695 or APPL, including the kinesin-binding region, disrupted axonal transport of APP695 and APPL. PubMed:12428809
The overexpression of full-length tau in Chinese hamster ovary (CHO) cells [3], N2A cells [4], cultured retinal ganglion cells [4], NB2a/d1 cells [5] H4-cells [6], and primary cortical neuron cultures [6] led to an impairment of anterograde transport of a variety of kinesin cargos, including mitochondria PubMed:25374103
Thies and Mandelkow [7] have shown previously that the co-expression of microtubule-associated protein/microtubule affinityregulating kinase 2 (MARK2) with tau can rescue these effects caused by tau overexpression in vitro. PubMed:25374103
First, tau competes with kinesin or dynein motors for binding to microtubules, reducing the binding frequency, motile fraction and run length of kinesin and dynein (without changing the motor velocity of kinesin and dynein), and thereby slowing down both anterograde and retrograde transport PubMed:26631930
The overexpression of full-length tau in Chinese hamster ovary (CHO) cells [3], N2A cells [4], cultured retinal ganglion cells [4], NB2a/d1 cells [5] H4-cells [6], and primary cortical neuron cultures [6] led to an impairment of anterograde transport of a variety of kinesin cargos, including mitochondria PubMed:25374103
This leads to accumulation of mitochondria in the cell body where they cluster near the microtubule center [6]. PubMed:25374103
Thies and Mandelkow [7] have shown previously that the co-expression of microtubule-associated protein/microtubule affinityregulating kinase 2 (MARK2) with tau can rescue these effects caused by tau overexpression in vitro. PubMed:25374103
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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.