TY - JOUR
T1 - Tau target identification reveals NSF-dependent effects on AMPA receptor trafficking and memory formation
AU - Prikas, Emmanuel
AU - Paric, Esmeralda
AU - Asih, Prita R.
AU - Stefanoska, Kristie
AU - Stefen, Holly
AU - Fath, Thomas
AU - Poljak, Anne
AU - Ittner, Arne
PY - 2022/9/15
Y1 - 2022/9/15
N2 - Microtubule-associated protein tau is a central factor in Alzheimer's disease and other tauopathies. However, the physiological functions of tau are unclear. Here, we used proximity-labelling proteomics to chart tau interactomes in primary neurons and mouse brains in vivo. Tau interactors map onto pathways of cytoskeletal, synaptic vesicle and postsynaptic receptor regulation and show significant enrichment for Parkinson's, Alzheimer's and prion disease. We find that tau interacts with and dose-dependently reduces the activity of N-ethylmaleimide sensitive fusion protein (NSF), a vesicular ATPase essential for AMPA-type glutamate receptor (AMPAR) trafficking. Tau-deficient (tau−/−) neurons showed mislocalised expression of NSF and enhanced synaptic AMPAR surface levels, reversible through the expression of human tau or inhibition of NSF. Consequently, enhanced AMPAR-mediated associative and object recognition memory in tau−/− mice is suppressed by both hippocampal tau and infusion with an NSF-inhibiting peptide. Pathologic mutant tau from mouse models or Alzheimer's disease significantly enhances NSF inhibition. Our results map neuronal tau interactomes and delineate a functional link of tau with NSF in plasticity-associated AMPAR-trafficking and memory.
AB - Microtubule-associated protein tau is a central factor in Alzheimer's disease and other tauopathies. However, the physiological functions of tau are unclear. Here, we used proximity-labelling proteomics to chart tau interactomes in primary neurons and mouse brains in vivo. Tau interactors map onto pathways of cytoskeletal, synaptic vesicle and postsynaptic receptor regulation and show significant enrichment for Parkinson's, Alzheimer's and prion disease. We find that tau interacts with and dose-dependently reduces the activity of N-ethylmaleimide sensitive fusion protein (NSF), a vesicular ATPase essential for AMPA-type glutamate receptor (AMPAR) trafficking. Tau-deficient (tau−/−) neurons showed mislocalised expression of NSF and enhanced synaptic AMPAR surface levels, reversible through the expression of human tau or inhibition of NSF. Consequently, enhanced AMPAR-mediated associative and object recognition memory in tau−/− mice is suppressed by both hippocampal tau and infusion with an NSF-inhibiting peptide. Pathologic mutant tau from mouse models or Alzheimer's disease significantly enhances NSF inhibition. Our results map neuronal tau interactomes and delineate a functional link of tau with NSF in plasticity-associated AMPAR-trafficking and memory.
KW - AMPA receptor
KW - associative learning
KW - interactome
KW - proximity labelling
KW - tau
UR - http://www.scopus.com/inward/record.url?scp=85136507839&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/NHMRC/1143978
UR - http://purl.org/au-research/grants/NHMRC/1176628
UR - http://purl.org/au-research/grants/ARC/DP170100843
UR - http://purl.org/au-research/grants/ARC/DP200102396
UR - http://purl.org/au-research/grants/ARC/DP220101900
U2 - 10.15252/embj.2021110242
DO - 10.15252/embj.2021110242
M3 - Article
C2 - 35993331
AN - SCOPUS:85136507839
VL - 41
JO - EMBO Journal
JF - EMBO Journal
SN - 0261-4189
IS - 18
M1 - e10242
ER -