Abstract
Accumulation of neurofibrillary tangles (NFT), intracellular inclusions of fibrillar forms of tau, is a hallmark of Alzheimer’s disease. NFT have been considered causative of neuronal death, however, recent evidence challenges this idea. Other species of tau, such as soluble misfolded, hyperphosphorylated, and mislocalized forms, are now being implicated as toxic. Here we review the data supporting soluble tau as toxic to neurons and synapses in the brain and the implications of these data for development of therapeutic strategies for Alzheimer’s disease and other tauopathies.
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Gotz J., Ittner A., Ittner L.M., Tau-targeted treatment strategies in Alzheimer’s disease, Br. J. Pharmacol., 2012, 165, 1246–1259
Huang Y., Mucke L., Alzheimer mechanisms and therapeutic strategies, Cell, 2012, 148, 1204–1222
Selkoe D.J., Resolving controversies on the path to Alzheimer’s therapeutics, Nat. Med., 2011, 17, 1060–1065
Ittner L.M., Gotz J., Amyloid-beta and tau—a toxic pas de deux in Alzheimer’s disease, Nat. Rev. Neurosci., 2011, 12, 65–72
Alzheimer A., Stelzmann R.A., Schnitzlein H.N., Murtagh F.R., An English translation of Alzheimer’s 1907 paper, “Über eine eigenartige Erkankung der Hirnrinde”, Clin Anat, 1995, 8, 429–431
Maurer K., Volk S., Gerbaldo H., Auguste D and Alzheimer’s disease, Lancet, 1997, 349, 1546–1549
Coleman P.D., Yao P.J., Synaptic slaughter in Alzheimer’s disease, Neurobiol. Aging, 2003, 24, 1023–1027
DeKosky S.T., Scheff S.W., Styren S.D., Structural correlates of cognition in dementia: quantification and assessment of synapse change, Neurodegeneration, 1996, 5, 417–421
Terry R.D., Masliah E., Salmon D.P., Butters N., DeTeresa R., Hill R., et al., Physical basis of cognitive alterations in Alzheimer’s disease: synapse loss is the major correlate of cognitive impairment, Ann. Neurol., 1991, 30, 572–580
Bittner T., Fuhrmann M., Burgold S., Ochs S.M., Hoffmann N., Mitteregger G., et al., Multiple events lead to dendritic spine loss in triple transgenic Alzheimer’s disease mice, PLoS One, 2010, 5, e15477
Bretteville A., Planel E., Tau aggregates: toxic, inert, or protective species?, J. Alzheimers Dis., 2008, 14, 431–436
Selkoe D.J., Alzheimer’s disease: genes, proteins, and therapy, Physiol. Rev., 2001, 81, 741–766
Swerdlow R.H., Burns J.M., Khan S.M., The Alzheimer’s disease mitochondrial cascade hypothesis, J. Alzheimers Dis., 2010, 20Suppl. 2, S265–279
Zempel H., Thies E., Mandelkow E., Mandelkow E.M., Abeta oligomers cause localized Ca(2+) elevation, missorting of endogenous Tau into dendrites, Tau phosphorylation, and destruction of microtubules and spines, J. Neurosci., 2010, 30, 11938–11950
Brunden K.R., Ballatore C., Crowe A., Smith A.B., 3rd, Lee V.M., Trojanowski J.Q., Tau-directed drug discovery for Alzheimer’s disease and related tauopathies: a focus on tau assembly inhibitors, Exp. Neurol., 2010, 223, 304–310
Brunden K.R., Trojanowski J.Q., Lee V.M., Advances in tau-focused drug discovery for Alzheimer’s disease and related tauopathies, Nat. Rev. Drug Discov., 2009, 8, 783–793
Hutton M., Lendon C.L., Rizzu P., Baker M., Froelich S., Houlden H., et al., Association of missense and 5′-splice-site mutations in tau with the inherited dementia FTDP-17, Nature, 1998, 393, 702–705
Spires-Jones T.L., Stoothoff W.H., de Calignon A., Jones P.B., Hyman B.T., Tau pathophysiology in neurodegeneration: a tangled issue, Trends Neurosci., 2009, 32, 150–159
Arriagada P.V., Growdon J.H., Hedley-Whyte E.T., Hyman B.T., Neurofibrillary tangles but not senile plaques parallel duration and severity of Alzheimer’s disease, Neurology, 1992, 42, 631–639
Giannakopoulos P., Herrmann F.R., Bussiere T., Bouras C., Kovari E., Perl D.P., et al., Tangle and neuron numbers, but not amyloid load, predict cognitive status in Alzheimer’s disease, Neurology, 2003, 60, 1495–1500
Gomez-Isla T., Hollister R., West H., Mui S., Growdon J.H., Petersen R.C., et al., Neuronal loss correlates with but exceeds neurofibrillary tangles in Alzheimer’s disease, Ann. Neurol., 1997, 41, 17–24
Ittner L.M., Ke Y.D., Delerue F., Bi M., Gladbach A., van Eersel J., et al., Dendritic function of tau mediates amyloid-beta toxicity in Alzheimer’s disease mouse models, Cell, 2010, 142, 387–397
Roberson E.D., Halabisky B., Yoo J.W., Yao J., Chin J., Yan F., et al., Amyloid-{beta}/Fyn-induced synaptic, network, and cognitive impairments depend on tau levels in multiple mouse models of Alzheimer’s disease, J. Neurosci., 2011, 31, 700–711
Roberson E.D., Scearce-Levie K., Palop J.J., Yan F., Cheng I.H., Wu T., et al., Reducing endogenous tau ameliorates amyloid beta-induced deficits in an Alzheimer’s disease mouse model, Science, 2007, 316, 750–754
Vossel K.A., Zhang K., Brodbeck J., Daub A.C., Sharma P., Finkbeiner S., et al., Tau reduction prevents Abeta-induced defects in axonal transport, Science, 2010, 330, 198
Yu W., Polepalli J., Wagh D., Rajadas J., Malenka R., Lu B., A critical role for the PAR-1/MARK-tau axis in mediating the toxic effects of Abeta on synapses and dendritic spines, Hum. Mol. Genet., 2012, 21, 1384–1390
Hyman B.T., Amyloid-dependent and amyloid-independent stages of Alzheimer disease, Arch. Neurol., 2011, 68, 1062–1064
Gendron T.F., Petrucelli L., The role of tau in neurodegeneration, Mol. Neurodegener., 2009, 4, 13
Ballatore C., Lee V.M., Trojanowski J.Q., Tau-mediated neurodegeneration in Alzheimer’s disease and related disorders, Nat. Rev. Neurosci., 2007, 8, 663–672
Ittner A., Ke Y.D., van Eersel J., Gladbach A., Gotz J., Ittner L.M., Brief update on different roles of tau in neurodegeneration, IUBMB Life, 2011, 63, 495–502
Avila J., Perez M., Lim F., Gomez-Ramos A., Hernandez F., Lucas J.J., Tau in neurodegenerative diseases: tau phosphorylation and assembly, Neurotox. Res., 2004, 6, 477–482
Alonso A.C., Grundke-Iqbal I., Iqbal K., Alzheimer’s disease hyperphosphorylated tau sequesters normal tau into tangles of filaments and disassembles microtubules, Nat. Med., 1996, 2, 783–787
Alonso A.C., Zaidi T., Grundke-Iqbal I., Iqbal K., Role of abnormally phosphorylated tau in the breakdown of microtubules in Alzheimer disease, Proc. Natl. Acad. Sci. USA, 1994, 91, 5562–5566
Iqbal K., Alonso Adel C., Grundke-Iqbal I., Cytosolic abnormally hyperphosphorylated tau but not paired helical filaments sequester normal MAPs and inhibit microtubule assembly, J. Alzheimers Dis., 2008, 14, 365–370
Eckermann K., Mocanu M.M., Khlistunova I., Biernat J., Nissen A., Hofmann A., et al., The beta-propensity of Tau determines aggregation and synaptic loss in inducible mouse models of tauopathy, J. Biol. Chem., 2007, 282, 31755–31765
Li X., Kumar Y., Zempel H., Mandelkow E.M., Biernat J., Mandelkow E., Novel diffusion barrier for axonal retention of Tau in neurons and its failure in neurodegeneration, EMBO J., 2011, 30, 4825–4837
Spires-Jones T.L., Kopeikina K.J., Koffie R.M., de Calignon A., Hyman B.T., Are tangles as toxic as they look?, J. Mol. Neurosci., 2011, 45, 438–444
Kimura T., Fukuda T., Sahara N., Yamashita S., Murayama M., Mizoroki T., et al., Aggregation of detergent-insoluble tau is involved in neuronal loss but not in synaptic loss, J. Biol. Chem., 2010, 285, 38692–38699
Mocanu M.M., Nissen A., Eckermann K., Khlistunova I., Biernat J., Drexler D., et al., The potential for beta-structure in the repeat domain of tau protein determines aggregation, synaptic decay, neuronal loss, and coassembly with endogenous Tau in inducible mouse models of tauopathy, J. Neurosci., 2008, 28, 737–748
Takashima A., Hyperphosphorylated tau is a cause of neuronal dysfunction in tauopathy, J. Alzheimers Dis., 2008, 14, 371–375
Brunden K.R., Trojanowski J.Q., Lee V.M., Evidence that non-fibrillar tau causes pathology linked to neurodegeneration and behavioral impairments, J. Alzheimers Dis., 2008, 14, 393–399
Braak H., Braak E., Staging of Alzheimer’s disease-related neurofibrillary changes, Neurobiol. Aging, 1995, 16, 271–278; discussion 278–284
Braak H., Del Tredici K., Alzheimer’s disease: pathogenesis and prevention, Alzheimers Dement., 2012, 8, 227–233
Bezprozvanny I., Mattson M.P., Neuronal calcium mishandling and the pathogenesis of Alzheimer’s disease, Trends Neurosci., 2008, 31, 454–463
Furukawa K., Wang Y., Yao P.J., Fu W., Mattson M.P., Itoyama Y., et al., Alteration in calcium channel properties is responsible for the neurotoxic action of a familial frontotemporal dementia tau mutation, J. Neurochem., 2003, 87, 427–436
Mattson M.P., Calcium and neurodegeneration, Aging Cell, 2007, 6, 337–350
Mattson M.P., Chan S.L., Neuronal and glial calcium signaling in Alzheimer’s disease, Cell Calcium, 2003, 34, 385–397
Sydow A., Van der Jeugd A., Zheng F., Ahmed T., Balschun D., Petrova O., et al., Reversibility of Tau-related cognitive defects in a regulatable FTD mouse model, J. Mol. Neurosci., 2011, 45, 432–437
Sydow A., Van der Jeugd A., Zheng F., Ahmed T., Balschun D., Petrova O., et al., Tau-induced defects in synaptic plasticity, learning, and memory are reversible in transgenic mice after switching off the toxic Tau mutant, J. Neurosci., 2011, 31, 2511–2525
Braak H., Braak E., Diagnostic criteria for neuropathologic assessment of Alzheimer’s disease, Neurobiol. Aging, 1997, 18, S85–88
Andorfer C., Acker C.M., Kress Y., Hof P.R., Duff K., Davies P., Cell-cycle reentry and cell death in transgenic mice expressing nonmutant human tau isoforms, J. Neurosci., 2005, 25, 5446–5454
Polydoro M., Acker C.M., Duff K., Castillo P.E., Davies P., Age-dependent impairment of cognitive and synaptic function in the htau mouse model of tau pathology, J. Neurosci., 2009, 29, 10741–10749
Wittmann C.W., Wszolek M.F., Shulman J.M., Salvaterra P.M., Lewis J., Hutton M., et al., Tauopathy in Drosophila: neurodegeneration without neurofibrillary tangles, Science, 2001, 293, 711–714
Santacruz K., Lewis J., Spires T., Paulson J., Kotilinek L., Ingelsson M., et al., Tau suppression in a neurodegenerative mouse model improves memory function, Science, 2005, 309, 476–481
Spires T.L., Orne J.D., SantaCruz K., Pitstick R., Carlson G.A., Ashe K.H., et al., Region-specific dissociation of neuronal loss and neurofibrillary pathology in a mouse model of tauopathy, Am. J. Pathol., 2006, 168, 1598–1607
Rocher A.B., Crimins J.L., Amatrudo J.M., Kinson M.S., Todd-Brown M.A., Lewis J., et al., Structural and functional changes in tau mutant mice neurons are not linked to the presence of NFTs, Exp. Neurol., 2010, 223, 385–393
Fox L.M., William C.M., Adamowicz D.H., Pitstick R., Carlson G.A., Spires-Jones T.L., et al., Soluble tau species, not neurofibrillary aggregates, disrupt neural system integration in a tau transgenic model, J. Neuropathol. Exp. Neurol., 2011, 70, 588–595
de Calignon A.F., LM. Pitstick, R. Carlson, GA. Bacskai, BJ. Spires-Jones, TL. Hyman, BT., Caspase activation precedes and leads to tangles, Nature, 2010, 464, 1201–1204
Spires-Jones T.L., de Calignon A., Matsui T., Zehr C., Pitstick R., Wu H.Y., et al., In vivo imaging reveals dissociation between caspase activation and acute neuronal death in tangle-bearing neurons, J. Neurosci., 2008, 28, 862–867
Shahani N., Subramaniam S., Wolf T., Tackenberg C., Brandt R., Tau aggregation and progressive neuronal degeneration in the absence of changes in spine density and morphology after targeted expression of Alzheimer’s disease-relevant tau constructs in organotypic hippocampal slices, J. Neurosci., 2006, 26, 6103–6114
Baas P.W., Qiang L., Neuronal microtubules: when the MAP is the roadblock, Trends Cell Biol., 2005, 15, 183–187
Dixit R., Ross J.L., Goldman Y.E., Holzbaur E.L., Differential regulation of dynein and kinesin motor proteins by tau, Science, 2008, 319, 1086–1089
Dubey M., Chaudhury P., Kabiru H., Shea T.B., Tau inhibits anterograde axonal transport and perturbs stability in growing axonal neurites in part by displacing kinesin cargo: neurofilaments attenuate taumediated neurite instability, Cell Motil. Cytoskeleton, 2008, 65, 89–99
Ebneth A., Godemann R., Stamer K., Illenberger S., Trinczek B., Mandelkow E., Overexpression of tau protein inhibits kinesin-dependent trafficking of vesicles, mitochondria, and endoplasmic reticulum: implications for Alzheimer’s disease, J. Cell Biol., 1998, 143, 777–794
Stamer K., Vogel R., Thies E., Mandelkow E., Mandelkow E.M., Tau blocks traffic of organelles, neurofilaments, and APP vesicles in neurons and enhances oxidative stress, J. Cell Biol., 2002, 156, 1051–1063
Stoothoff W., Jones P.B., Spires-Jones T.L., Joyner D., Chhabra E., Bercury K., et al., Differential effect of three-repeat and four-repeat tau on mitochondrial axonal transport, J. Neurochem., 2009, 111, 417–427
Thies E., Mandelkow E.M., Missorting of tau in neurons causes degeneration of synapses that can be rescued by the kinase MARK2/Par-1, J. Neurosci., 2007, 27, 2896–2907
Berger Z., Roder H., Hanna A., Carlson A., Rangachari V., Yue M., et al., Accumulation of pathological tau species and memory loss in a conditional model of tauopathy, J. Neurosci., 2007, 27, 3650–3662
Hoover B.R., Reed M.N., Su J., Penrod R.D., Kotilinek L.A., Grant M.K., et al., Tau mislocalization to dendritic spines mediates synaptic dysfunction independently of neurodegeneration, Neuron, 2010, 68, 1067–1081
Yoshiyama Y., Higuchi M., Zhang B., Huang S.M., Iwata N., Saido T.C., et al., Synapse loss and microglial activation precede tangles in a P301S tauopathy mouse model, Neuron, 2007, 53, 337–351
Clavaguera F., Bolmont T., Crowther R.A., Abramowski D., Frank S., Probst A., et al., Transmission and spreading of tauopathy in transgenic mouse brain, Nat. Cell Biol., 2009, 11, 909–913
de Calignon A., Polydoro M., Suarez-Calvet M., William C., Adamowicz D.H., Kopeikina K.J., et al., Propagation of tau pathology in a model of early Alzheimer’s disease, Neuron, 2012, 73, 685–697
Frost B., Jacks R.L., Diamond M.I., Propagation of tau misfolding from the outside to the inside of a cell, J. Biol. Chem., 2009, 284, 12845–12852
Gomez-Ramos A., Diaz-Hernandez M., Rubio A., Miras-Portugal M.T., Avila J., Extracellular tau promotes intracellular calcium increase through M1 and M3 muscarinic receptors in neuronal cells, Mol. Cell. Neurosci., 2008, 37, 673–681
Hollenbeck P.J., Saxton W.M., The axonal transport of mitochondria, J. Cell Sci., 2005, 118, 5411–5419
Wang X., Schwarz T.L., The mechanism of Ca2+-dependent regulation of kinesin-mediated mitochondrial motility, Cell, 2009, 136, 163–174
Lin M.T., Beal M.F., Mitochondrial dysfunction and oxidative stress in neurodegenerative diseases, Nature, 2006, 443, 787–795
Morfini G.A., Burns M., Binder L.I., Kanaan N.M., LaPointe N., Bosco D.A., et al., Axonal transport defects in neurodegenerative diseases, J. Neurosci., 2009, 29, 12776–12786
Querfurth H.W., LaFerla F.M., Alzheimer’s disease, N. Engl. J. Med., 2010, 362, 329–344
Wang X., Su B., Lee H.G., Li X., Perry G., Smith M.A., et al., Impaired balance of mitochondrial fission and fusion in Alzheimer’s disease, J. Neurosci., 2009, 29, 9090–9103
Wang X., Su B., Zheng L., Perry G., Smith M.A., Zhu X., The role of abnormal mitochondrial dynamics in the pathogenesis of Alzheimer’s disease, J. Neurochem., 2009, 109 Suppl. 1, 153–159
Westermann B., Mitochondrial fusion and fission in cell life and death, Nat. Rev. Mol. Cell Biol., 2010, 11, 872–884
Yuan A., Kumar A., Peterhoff C., Duff K., Nixon R.A., Axonal transport rates in vivo are unaffected by tau deletion or overexpression in mice, J. Neurosci., 2008, 28, 1682–1687
Morris M., Maeda S., Vossel K., Mucke L., The many faces of tau, Neuron, 2011, 70, 410–426
LaPointe N.E., Morfini G., Pigino G., Gaisina I.N., Kozikowski A.P., Binder L.I., et al., The amino terminus of tau inhibits kinesin-dependent axonal transport: implications for filament toxicity, J. Neurosci. Res., 2009, 87, 440–451
Muresan V., Muresan Z., Is abnormal axonal transport a cause, a contributing factor or a consequence of the neuronal pathology in Alzheimer’s disease?, Future Neurol., 2009, 4, 761–773
Ittner L.M., Ke Y.D., Gotz J., Phosphorylated Tau interacts with c-Jun N-terminal kinase-interacting protein 1 (JIP1) in Alzheimer disease, J. Biol. Chem., 2009, 284, 20909–20916
Tackenberg C., Brandt R., Divergent pathways mediate spine alterations and cell death induced by amyloid-beta, wild-type tau, and R406W tau, J. Neurosci., 2009, 29, 14439–14450
Amadoro G., Corsetti V., Stringaro A., Colone M., D’Aguanno S., Meli G., et al., A NH2 tau fragment targets neuronal mitochondria at AD synapses: possible implications for neurodegeneration, J. Alzheimers Dis., 2010, 21, 445–470
Bobba A., Petragallo V.A., Marra E., Atlante A., Alzheimer’s proteins, oxidative stress, and mitochondrial dysfunction interplay in a neuronal model of Alzheimer’s disease, Int. J. Alzheimers Dis., 2010, pii: 621870
Decker H., Lo K.Y., Unger S.M., Ferreira S.T., Silverman M.A., Amyloidbeta peptide oligomers disrupt axonal transport through an NMDA receptor-dependent mechanism that is mediated by glycogen synthase kinase 3beta in primary cultured hippocampal neurons, J. Neurosci., 2010, 30, 9166–9171
Lasagna-Reeves C.A., Castillo-Carranza D.L., Sengupta U., Clos A.L., Jackson G.R., Kayed R., Tau oligomers impair memory and induce synaptic and mitochondrial dysfunction in wild-type mice, Mol. Neurodegener., 2011, 6, 39
Sheng Z.H., Cai Q., Mitochondrial transport in neurons: impact on synaptic homeostasis and neurodegeneration, Nat. Rev. Neurosci., 2012, 13, 77–93
Chen H., Chan D.C., Mitochondrial dynamics—fusion, fission, movement, and mitophagy—in neurodegenerative diseases, Hum. Mol. Genet., 2009, 18, R169–176
Gibson G.E., Starkov A., Blass J.P., Ratan R.R., Beal M.F., Cause and consequence: mitochondrial dysfunction initiates and propagates neuronal dysfunction, neuronal death and behavioral abnormalities in age-associated neurodegenerative diseases, Biochim. Biophys. Acta, 2010, 1802, 122–134
David D.C., Hauptmann S., Scherping I., Schuessel K., Keil U., Rizzu P., et al., Proteomic and functional analyses reveal a mitochondrial dysfunction in P301L tau transgenic mice, J. Biol. Chem., 2005, 280, 23802–23814
Eckert A., Schulz K.L., Rhein V., Gotz J., Convergence of amyloidbeta and tau pathologies on mitochondria in vivo, Mol. Neurobiol., 2010, 41, 107–114
Mandelkow E.M., Thies E., Trinczek B., Biernat J., Mandelkow E., MARK/PAR1 kinase is a regulator of microtubule-dependent transport in axons, J. Cell Biol., 2004, 167, 99–110
Kopeikina K.J., Carlson G.A., Pitstick R., Ludvigson A.E., Peters A., Luebke J.I., et al., Tau accumulation causes mitochondrial distribution deficits in neurons in a mouse model of tauopathy and in human Alzheimer’s disease brain, Am. J. Pathol., 2011, 179, 2071–2082
Du H., Guo L., Yan S., Sosunov A.A., McKhann G.M., Yan S.S., Early deficits in synaptic mitochondria in an Alzheimer’s disease mouse model, Proc. Natl. Acad. Sci. USA, 2010, 107, 18670–18675
D’Amelio M., Cavallucci V., Middei S., Marchetti C., Pacioni S., Ferri A., et al., Caspase-3 triggers early synaptic dysfunction in a mouse model of Alzheimer’s disease, Nat. Neurosci., 2011, 14, 69–76
Quintanilla R.A., Matthews-Roberson T.A., Dolan P.J., Johnson G.V., Caspase-cleaved tau expression induces mitochondrial dysfunction in immortalized cortical neurons: implications for the pathogenesis of Alzheimer disease, J. Biol. Chem., 2009, 284, 18754–18766
Berridge M.J., Calcium signalling and Alzheimer’s disease, Neurochem. Res., 2011, 36, 1149–1156
Chakroborty S., Stutzmann G.E., Early calcium dysregulation in Alzheimer’s disease: setting the stage for synaptic dysfunction, Sci. China Life Sci., 2011, 54, 752–762
Khachaturian Z.S., Calcium hypothesis of Alzheimer’s disease and brain aging, Ann. NY Acad. Sci., 1994, 747, 1–11
Sabatini B.L., Maravall M., Svoboda K., Ca(2+) signaling in dendritic spines, Curr. Opin. Neurobiol., 2001, 11, 349–356
Zempel H., Mandelkow E.M., Linking amyloid-beta and tau: amyloid-beta induced synaptic dysfunction via local wreckage of the neuronal cytoskeleton, Neurodegener. Dis., 2011, 10, 64–72
Hermes M., Eichhoff G., Garaschuk O., Intracellular calcium signalling in Alzheimer’s disease, J. Cell. Mol. Med., 2010, 14, 30–41
Kuchibhotla K.V., Goldman S.T., Lattarulo C.R., Wu H.Y., Hyman B.T., Bacskai B.J., Abeta plaques lead to aberrant regulation of calcium homeostasis in vivo resulting in structural and functional disruption of neuronal networks, Neuron, 2008, 59, 214–225
Crimins J.L., Rocher A.B., Peters A., Shultz P., Lewis J., Luebke J.I., Homeostatic responses by surviving cortical pyramidal cells in neurodegenerative tauopathy, Acta Neuropathol., 2011, 122, 551–564
Kremer A., Maurin H., Demedts D., Devijver H., Borghgraef P., Van Leuven F., Early improved and late defective cognition is reflected by dendritic spines in Tau.P301L mice, J. Neurosci., 2011, 31, 18036–18047
de Calignon A., Spires-Jones T.L., Pitstick R., Carlson G.A., Hyman B.T., Tangle-bearing neurons survive despite disruption of membrane integrity in a mouse model of tauopathy, J. Neuropathol. Exp. Neurol., 2009, 68, 757–761
de Calignon A., Fox L.M., Pitstick R., Carlson G.A., Bacskai B.J., Spires-Jones T.L., et al., Caspase activation precedes and leads to tangles, Nature, 2010, 464, 1201–1204
Reddy P.H., Reddy T.P., Manczak M., Calkins M.J., Shirendeb U., Mao P., Dynamin-related protein 1 and mitochondrial fragmentation in neurodegenerative diseases, Brain Res. Rev., 2010, 67, 103–118
Verstreken P., Ly C.V., Venken K.J., Koh T.W., Zhou Y., Bellen H.J., Synaptic mitochondria are critical for mobilization of reserve pool vesicles at Drosophila neuromuscular junctions, Neuron, 2005, 47, 365–378
Selkoe D.J., Alzheimer’s disease is a synaptic failure, Science, 2002, 298, 789–791
Dickstein D.L., Brautigam H., Stockton S.D., Jr., Schmeidler J., Hof P.R., Changes in dendritic complexity and spine morphology in transgenic mice expressing human wild-type tau, Brain Struct. Funct., 2010, 214, 161–179
Lasagna-Reeves C.A., Castillo-Carranza D.L., Guerrero-Muoz M.J., Jackson G.R., Kayed R., Preparation and characterization of neurotoxic tau oligomers, Biochemistry, 2010, 49, 10039–10041
Medina D.X., Caccamo A., Oddo S., Methylene blue reduces abeta levels and rescues early cognitive deficit by increasing proteasome activity, Brain Pathol., 2011, 21, 140–149
Wischik C., Staff R., Challenges in the conduct of disease-modifying trials in AD: practical experience from a phase 2 trial of Tauaggregation inhibitor therapy, J. Nutr. Health Aging, 2009, 13, 367–369
Asuni A.A., Boutajangout A., Quartermain D., Sigurdsson E.M., Immunotherapy targeting pathological tau conformers in a tangle mouse model reduces brain pathology with associated functional improvements, J. Neurosci., 2007, 27, 9115–9129
Bi M., Ittner A., Ke Y.D., Gotz J., Ittner L.M., Tau-targeted immunization impedes progression of neurofibrillary histopathology in aged P301L tau transgenic mice, PLoS One, 2011, 6, e26860
Boutajangout A., Quartermain D., Sigurdsson E.M., Immunotherapy targeting pathological tau prevents cognitive decline in a new tangle mouse model, J. Neurosci., 2010, 30, 16559–16566
Bulic B., Pickhardt M., Khlistunova I., Biernat J., Mandelkow E.M., Mandelkow E., et al., Rhodanine-based tau aggregation inhibitors in cell models of tauopathy, Angew. Chem. Int. Ed. Engl., 2007, 46, 9215–9219
Ishihara T., Hong M., Zhang B., Nakagawa Y., Lee M.K., Trojanowski J.Q., et al., Age-dependent emergence and progression of a tauopathy in transgenic mice overexpressing the shortest human tau isoform, Neuron, 1999, 24, 751–762
Zhang B., Maiti A., Shively S., Lakhani F., McDonald-Jones G., Bruce J., et al., Microtubule-binding drugs offset tau sequestration by stabilizing microtubules and reversing fast axonal transport deficits in a tauopathy model, Proc. Natl. Acad. Sci. USA, 2005, 102, 227–231
Gozes I., Divinski I., The femtomolar-acting NAP interacts with microtubules: Novel aspects of astrocyte protection, J. Alzheimers Dis., 2004, 6, S37–41
Matsuoka Y., Gray A.J., Hirata-Fukae C., Minami S.S., Waterhouse E.G., Mattson M.P., et al., Intranasal NAP administration reduces accumulation of amyloid peptide and tau hyperphosphorylation in a transgenic mouse model of Alzheimer’s disease at early pathological stage, J. Mol. Neurosci., 2007, 31, 165–170
Matsuoka Y., Jouroukhin Y., Gray A.J., Ma L., Hirata-Fukae C., Li H.F., et al., A neuronal microtubule-interacting agent, NAPVSIPQ, reduces tau pathology and enhances cognitive function in a mouse model of Alzheimer’s disease, J. Pharmacol. Exp. Ther., 2008, 325, 146–153
Gozes I., Stewart A., Morimoto B., Fox A., Sutherland K., Schmeche D., Addressing Alzheimer’s disease tangles: from NAP to AL-108, Curr. Alzheimer Res., 2009, 6, 455–460
Green K.N., Calcium in the initiation, progression and as an effector of Alzheimer’s disease pathology, J. Cell. Mol. Med., 2009, 13, 2787–2799
Meyer-Luehmann M., Spires-Jones T.L., Prada C., Garcia-Alloza M., de Calignon A., Rozkalne A., et al., Rapid appearance and local toxicity of amyloid-beta plaques in a mouse model of Alzheimer’s disease, Nature, 2008, 451, 720–724
Koffie R.M., Farrar C.T., Saidi L.J., William C.M., Hyman B.T., Spires-Jones T.L., Nanoparticles enhance brain delivery of blood-brain barrier-impermeable probes for in vivo optical and magnetic resonance imaging, Proc. Natl. Acad. Sci. USA, 2011, 108, 18837–18842
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Kopeikina, K.J., Hyman, B.T. & Spires-Jones, T.L. Soluble forms of tau are toxic in Alzheimer’s disease. Translat.Neurosci. 3, 223–233 (2012). https://doi.org/10.2478/s13380-012-0032-y
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DOI: https://doi.org/10.2478/s13380-012-0032-y