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Cell biology of protein misfolding: The examples of Alzheimer's and Parkinson's diseases

Abstract

The salutary intersection of fundamental cell biology with the study of disease is well illustrated by the emerging elucidation of neurodegenerative disorders. Novel mechanisms in cell biology have been uncovered through disease-orientated research; for example, the discovery of presenilin as an intramembrane aspartyl protease that processes many diverse proteins within the lipid bilayer. A common theme has arisen in this field: normally-soluble proteins accumulate, misfold and oligomerize, inducing cytotoxic effects that are particularly devastating in the post-mitotic milieu of the neuron.

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Figure 1: A model of key events underlying the pathogenesis of Alzheimer's disease, based on available evidence.
Figure 2: Schematic diagrams of the β-amyloid precursor protein (APP) and its principal proteolytic derivatives.

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References

  1. Selkoe, D. J., Ihara, Y. & Salazar, F. Alzheimer's disease: insolubility of partially purified paired helical filaments in sodium dodecyl sulfate and urea. Science 215, 1243–1245 (1982).

    Article  CAS  PubMed  Google Scholar 

  2. Nukina, N. & Ihara, Y. Proteolytic fragments of Alzheimer's paired helical filaments. J Biochem (Tokyo) 98, 1715–1718 (1985).

    Article  CAS  Google Scholar 

  3. Grundke-Iqbal, I. et al. Abnormal phosphorylation of the microtubule-associated protein t (tau) in Alzheimer cytoskeletal pathology. Proc. Natl Acad. Sci. USA 83, 4913–4917 (1986).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  4. Kosik, K. S., Joachim, C. L. & Selkoe, D. J. Microtubule-associated protein, tau, is a major antigenic component of paired helical filaments in Alzheimer's disease. Proc. Natl Acad. Sci. USA 83, 4044–4048 (1986).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  5. Wischik, C. M. et al. Isolation of a fragment of tau derived from the core of the paired helical filament of Alzheimer's disease. Proc. Natl Acad. Sci. USA 85, 4506–4510 (1988).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  6. Lee, V. M.-Y., Balin, B. J., Otvos, L. & Trojanowski, J. Q. A68: A major subunit of paired helical filaments and derivatized forms of normal tau. Science 251, 675–678 (1991).

    Article  CAS  PubMed  Google Scholar 

  7. Lee, V. M., Goedert, M. & Trojanowski, J. Q. Neurodegenerative tauopathies. Annu. Rev. Neurosci. 24, 1121–1159 (2001).

    Article  CAS  PubMed  Google Scholar 

  8. Glenner, G. G. & Wong, C. W. Alzheimer's disease: Initial report of the purification and characterization of a novel cerebrovascular amyloid protein. Biochem. Biophys. Res. Commun. 120, 885–890 (1984).

    Article  CAS  PubMed  Google Scholar 

  9. Masters, C. L. et al. Amyloid plaque core protein in Alzheimer disease and Down syndrome. Proc. Natl Acad. Sci. USA 82, 4245–4249 (1985).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  10. Selkoe, D. J. Cell biology of the amyloid β-protein precursor and the mechanism of Alzheimer's disease. Annu. Rev. Cell Biol. 10, 373–403 (1994).

    Article  CAS  PubMed  Google Scholar 

  11. Kang, J. et al. The precursor of Alzheimer's disease amyloid A4 protein resembles a cell-surface receptor. Nature 325, 733–736 (1987).

    Article  CAS  PubMed  Google Scholar 

  12. Haass, C. et al. Amyloid β-peptide is produced by cultured cells during normal metabolism. Nature 359, 322–325 (1992).

    Article  CAS  PubMed  Google Scholar 

  13. Seubert, P. et al. Isolation and quantitation of soluble Alzheimer's β-peptide from biological fluids. Nature 359, 325–327 (1992).

    Article  CAS  PubMed  Google Scholar 

  14. Shoji, M. et al. Production of the Alzheimer amyloid β protein by normal proteolytic processing. Science 258, 126–129 (1992).

    Article  CAS  PubMed  Google Scholar 

  15. Vassar, R. & Citron, M. Aβ-generating enzymes: recent advances in β- and γ-secretase research. Neuron 27, 419–422 (2000).

    Article  CAS  PubMed  Google Scholar 

  16. Kimberly, W. T. et al. γ-Secretase is a membrane protein complex comprised of presenilin, nicastrin, Aph-1 and Pen-2. Proc. Natl Acad. Sci. USA 100, 6382–6387 (2003).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  17. Takasugi, N. et al. The role of presenilin cofactors in the γ-secretase complex. Nature 422, 438–441 (2003).

    Article  CAS  PubMed  Google Scholar 

  18. Edbauer, D. et al. Reconstitution of γ-secretase activity. Nature Cell Biol. 5, 486–488 (2003).

    Article  CAS  PubMed  Google Scholar 

  19. Buxbaum, J. D. et al. Evidence that tumor necrosis factor α converting enzyme is involved in regulated α-secretase cleavage of the Alzheimer amyloid protein precursor. J. Biol. Chem. 273, 27765–27767 (1998).

    Article  CAS  PubMed  Google Scholar 

  20. Parkin, E. T. et al. Structure–activity relationship of hydroxamate-based inhibitors on the secretases that cleave the amyloid precursor protein, angiotensin converting enzyme, CD23, and pro-tumor necrosis factor-α. Biochemistry 41, 4972–4981 (2002).

    Article  CAS  PubMed  Google Scholar 

  21. Haass, C., Hung, A. Y., Schlossmacher, M. G., Teplow, D. B. & Selkoe, D. J. β-amyloid peptide and a 3-kDa fragment are derived by distinct cellular mechanisms. J. Biol. Chem. 268, 3021–3024 (1993).

    Article  CAS  PubMed  Google Scholar 

  22. Cao, X. & Sudhof, T. C. A transcriptionally active complex of APP with Fe65 and histone acetyltransferase Tip60. Science 293, 115–120 (2001).

    Article  CAS  PubMed  Google Scholar 

  23. Kimberly, W. T., Zheng, J. B., Guenette, S. Y. & Selkoe, D. J. The intracellular domain of the β-amyloid precursor protein is stabilized by Fe65 and translocates to the nucleus in a Notch-like manner. J. Biol. Chem. 276, 40288–40292 (2001).

    Article  CAS  PubMed  Google Scholar 

  24. Cao, X. & Sudhof, T. C. Dissection of amyloid-β precursor protein-dependent transcriptional transactivation. J. Biol. Chem. 279, 24601–24611 (2004).

    Article  CAS  PubMed  Google Scholar 

  25. Zheng, H. et al. β-amyloid precursor protein-deficient mice show reactive gliosis and decreased locomotor activity. Cell 81, 525–531 (1995).

    Article  CAS  PubMed  Google Scholar 

  26. Perez, R. G., Zheng, H., Van der Ploeg, L. H. & Koo, E. H. The β-amyloid precursor protein of Alzheimer's disease enhances neuron viability and modulates neuronal polarity. J. Neurosci. 17, 9407–9414 (1997).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  27. Sherrington, R. et al. Cloning of a novel gene bearing missense mutations in early onset familial Alzheimer disease. Nature 375, 754–760 (1995).

    Article  CAS  PubMed  Google Scholar 

  28. Levy-Lahad, E. et al. Candidate gene for the chromosome 1 familial Alzheimer's disease locus. Science 269, 973–977 (1995).

    Article  CAS  PubMed  Google Scholar 

  29. Levitan, D. & Greenwald, I. Facilitation of lin-12-mediated signalling by sel-12, a Caenorhabditis elegans S182 Alzheimer's disease gene. Nature 377, 351–354 (1995).

    Article  CAS  PubMed  Google Scholar 

  30. De Strooper, B. et al. A presenilin-1-dependent γ-secretase-like protease mediates release of Notch intracellular domain. Nature 398, 518–522 (1999).

    Article  CAS  PubMed  Google Scholar 

  31. Struhl, G. & Greenwald, I. Presenilin is required for activity and nuclear access of Notch in Drosophila. Nature 398, 522–525 (1999).

    Article  CAS  PubMed  Google Scholar 

  32. Ye, Y., Lukinova, N. & Fortini, M. E. Neurogenic phenotypes and altered Notch processing in Drosophila Presenilin mutants. Nature 398, 525–529 (1999).

    Article  CAS  PubMed  Google Scholar 

  33. De Strooper, B. et al. Deficiency of presenilin-1 inhibits the normal cleavage of amyloid precursor protein. Nature 391, 387–390 (1998).

    Article  CAS  PubMed  Google Scholar 

  34. Wolfe, M. S. et al. Two transmembrane aspartates in presenilin-1 required for presenilin endoproteolysis and γ-secretase activity. Nature 398, 513–517 (1999).

    Article  CAS  PubMed  Google Scholar 

  35. Li, Y. -M. et al. Photoactivated γ-secretase inhibitors directed to the active site covalently label presenilin 1. Nature 405, 689–694 (2000).

    Article  CAS  PubMed  Google Scholar 

  36. Esler, W. P. et al. Transition-state analogue inhibitors of γ-secretase bind directly to presenilin-1. Nature Cell Biol. 2, 428–434 (2000).

    Article  CAS  PubMed  Google Scholar 

  37. Struhl, G. & Adachi, A. Requirements for presenilin-dependent cleavage of notch and other transmembrane proteins. Mol. Cell 6, 625–636 (2000).

    Article  CAS  PubMed  Google Scholar 

  38. Goate, A. et al. Segregation of a missense mutation in the amyloid precursor protein gene with familial Alzheimer's disease. Nature 349, 704–706 (1991).

    Article  CAS  PubMed  Google Scholar 

  39. Strittmatter, W. J. et al. Apolipoprotein E: high-avidity binding to β-amyloid and increased frequency of type 4 allele in late-onset familial Alzheimer disease. Proc. Natl Acad. Sci. USA 90, 1977–1981 (1993).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  40. Citron, M. et al. Mutation of the β-amyloid precursor protein in familial Alzheimer's disease increases β-protein production. Nature 360, 672–674 (1992).

    Article  CAS  PubMed  Google Scholar 

  41. Suzuki, N. et al. An increased percentage of long amyloid β protein secreted by familial amyloid β protein precursor (βAPP717) mutants. Science 264, 1336–1340 (1994).

    Article  CAS  PubMed  Google Scholar 

  42. Games, D. et al. Alzheimer-type neuropathology in transgenic mice overexpressing V717F β-amyloid precursor protein. Nature 373, 523–527 (1995).

    Article  CAS  PubMed  Google Scholar 

  43. Hsiao, K. et al. Correlative memory deficits, Aβ elevation, and amyloid plaques in transgenic mice. Science 274, 99–102 (1996).

    Article  CAS  PubMed  Google Scholar 

  44. Scheuner, D. et al. Secreted amyloid β-protein similar to that in the senile plaques of Alzheimer's disease is increased in vivo by the presenilin 1 and 2 and APP mutations linked to familial Alzheimer's disease. Nature Med. 2, 864–870 (1996).

    Article  CAS  PubMed  Google Scholar 

  45. Levy, E. et al. Mutation of the Alzheimer's disease amyloid gene in hereditary cerebral hemorrhage, Dutch-type. Science 248, 1124–1126 (1990).

    Article  CAS  PubMed  Google Scholar 

  46. Clements, A., Walsh, D. M., Williams, C. H. & Allsop, D. Effects of the mutations Glu22 to Gln and Ala21 to Gly on the aggregation of a synthetic fragment of the Alzheimer's amyloid b/A4 peptide. Neurosci. Lett. 161, 17–20 (1993).

    Article  CAS  PubMed  Google Scholar 

  47. De Jonghe, C. et al. Flemish and Dutch mutations in amyloid β precursor protein have different effects on amyloid β secretion. Neurobiol. Dis. 5, 281–286 (1998).

    Article  CAS  PubMed  Google Scholar 

  48. Nilsberth, C. et al. The 'Arctic' APP mutation (E693G) causes Alzheimer's disease by enhanced Aβ protofibril formation. Nature Neurosci. 4, 887–893 (2001).

    Article  CAS  PubMed  Google Scholar 

  49. Lemere, C. A. et al. Sequence of deposition of heterogeneous amyloid β-peptides and Apo E in Down syndrome: Implications for initial events in amyloid plaque formation. Neurobiol. Dis. 3, 16–32 (1996).

    Article  CAS  PubMed  Google Scholar 

  50. Saunders, A. M. et al. Association of apolipoprotein E allele ε 4 with late-onset familial and sporadic Alzheimer's disease. Neurology 43, 1467–1472 (1993).

    Article  CAS  PubMed  Google Scholar 

  51. Schmechel, D. E. et al. Increased amyloid β-peptide deposition in cerebral cortex as a consequence of apolipoprotein E genotype in late-onset Alzheimer disease. Proc. Natl Acad. Sci. USA 90, 9649–9653 (1993).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  52. Holtzman, D. M. et al. Apolipoprotein E isoform-dependent amyloid deposition and neuritic degeneration in a mouse model of Alzheimer's disease. Proc. Natl Acad. Sci. USA 97, 2892–2897 (2000).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  53. Hardy, J. & Selkoe, D. J. The amyloid hypothesis of Alzheimer's disease: progress and problems on the road to therapeutics. Science 297, 353–356 (2002).

    Article  CAS  PubMed  Google Scholar 

  54. Urbanc, B. et al. Neurotoxic effects of thioflavin S-positive amyloid deposits in transgenic mice and Alzheimer's disease. Proc. Natl Acad. Sci. USA 99, 13990–13995 (2002).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  55. Koo, E. H. et al. Precursor of amyloid protein in Alzheimer's disease undergoes fast anterograde axonal transport. Proc. Natl Acad. Sci. USA 87, 1561–1565 (1990).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  56. Kamal, A., Almenar-Queralt, A., LeBlanc, J. F., Roberts, E. A. & Goldstein, L. S. Kinesin-mediated axonal transport of a membrane compartment containing β-secretase and presenilin-1 requires APP. Nature 414, 643–648 (2001).

    Article  CAS  PubMed  Google Scholar 

  57. Naslund, J. et al. Correlation between elevated levels of amyloid β-peptide in the brain and cognitive decline. JAMA 283, 1571–1577 (2000).

    Article  CAS  PubMed  Google Scholar 

  58. McLean, C. A. et al. Soluble pool of Aβ amyloid as a determinant of severity of neurodegeneration in Alzheimer's disease. Ann. Neurol. 46, 860–866 (1999).

    Article  CAS  PubMed  Google Scholar 

  59. Lue, L. F. et al. Soluble amyloid β peptide concentration as a predictor of synaptic change in Alzheimer's disease. Am. J. Pathol. 155, 853–862 (1999).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  60. Hsia, A. Y. et al. Plaque-independent disruption of neural circuits in Alzheimer's disease mouse models. Proc. Natl. Acad. Sci. USA 96, 3228–3233 (1999).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  61. Mucke, L. et al. High-level neuronal expression of Aβ1–42 in wild-type human amyloid protein precursor transgenic mice: synaptotoxicity without plaque formation. J. Neurosci. 20, 4050–4058 (2000).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  62. Larson, J., Lynch, G., Games, D. & Seubert, P. Alterations in synaptic transmission and long-term potentiation in hippocampal slices from young and aged PDAPP mice. Brain Res. 840, 23–35 (1999).

    Article  CAS  PubMed  Google Scholar 

  63. Moechars, D. et al. Early phenotypic changes in transgenic mice that overexpress different mutants of amyloid precursor protein in brain. J. Biol. Chem. 274, 6483–6492 (1999).

    Article  CAS  PubMed  Google Scholar 

  64. Walsh, D. et al. Naturally secreted oligomers of the Alzheimer amyloid β-protein potently inhibit hippocampal long-term potentiation in vivo. Nature 416, 535–539 (2002).

    Article  CAS  PubMed  Google Scholar 

  65. Cleary, J. P. et al. Naturally assembled Aβ oligomers produce cognitive deficits. Soc. Neurosci. Abstr. 772.11 (2003).

    Google Scholar 

  66. Dodart, J. C. et al. Immunization reverses memory deficits without reducing brain Aβ burden in Alzheimer's disease model. Nature Neurosci. 5, 452–457 (2002).

    Article  CAS  PubMed  Google Scholar 

  67. Barghorn, S. & Mandelkow, E. Toward a unified scheme for the aggregation of tau into Alzheimer paired helical filaments. Biochemistry 41, 14885–14896 (2002).

    Article  CAS  PubMed  Google Scholar 

  68. Hutton, M. et al. Association of missense and 5′-splice-site mutations in tau with the inherited FTDP-17. Nature 393, 702–705 (1998).

    Article  CAS  PubMed  Google Scholar 

  69. Poorkaj, P. et al. Tau is a candidate gene for chromosome 17 frontotemporal dementia. Ann. Neurol. 43, 815–825 (1998).

    Article  CAS  PubMed  Google Scholar 

  70. Spillantini, M. G. et al. Mutation in the tau gene in familial multiple system tauopathy with presenile dementia. Proc. Natl Acad. Sci. USA 95, 7737–7741 (1998).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  71. Lewis, J. et al. Enhanced neurofibrillary degeneration in transgenic mice expressing mutant tau and APP. Science 293, 1487–1491 (2001).

    Article  CAS  PubMed  Google Scholar 

  72. Gotz, J., Chen, F., van Dorpe, J. & Nitsch, R. M. Formation of neurofibrillary tangles in P301l tau transgenic mice induced by Aβ 42 fibrils. Science 293, 1491–1495 (2001).

    Article  CAS  PubMed  Google Scholar 

  73. Oddo, S., Billings, L., Kesslak, J. P., Cribbs, D. H. & LaFerla, F. M. Aβ immunotherapy leads to clearance of early, but not late, hyperphosphorylated tau aggregates via the proteasome. Neuron 43, 1–20 (2004).

    Article  Google Scholar 

  74. Patrick, G. N. et al. Conversion of p35 to p25 deregulates Cdk5 activity and promotes neurodegeneration. Nature 402, 615–622 (1999).

    Article  CAS  PubMed  Google Scholar 

  75. McGeer, P. L. & McGeer, E. G. Inflammation, autotoxicity and Alzheimer disease. Neurobiol. Aging 22, 799–809 (2001).

    Article  CAS  PubMed  Google Scholar 

  76. Weggen, S. et al. A subset of NSAIDs lower amyloidogenic Aβ42 independently of cyclooxygenase activity. Nature 414, 212–216 (2001).

    Article  CAS  PubMed  Google Scholar 

  77. Koo, E. H. & Squazzo, S. Evidence that production and release of amyloid β-protein involves the endocytic pathway. J. Biol. Chem. 269, 17386–17389 (1994).

    Article  CAS  PubMed  Google Scholar 

  78. Hartmann, T. et al. Distinct sites of intracellular production for Alzheimer's disease Aβ-40/42 amyloid peptides. Nature Med. 3, 1016–1020 (1997).

    Article  CAS  PubMed  Google Scholar 

  79. Cook, D. G. et al. Alzheimer's Aβ (1–42) is generated in the endoplasmic reticulum/intermediate compartment of NT2N cells. Nature Med. 3, 1021–1023 (1997).

    Article  CAS  PubMed  Google Scholar 

  80. Gouras, G. K. et al. Intraneuronal Aβ42 accumulation in human brain. Am. J. Pathol. 156, 15–20 (2000).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  81. Annaert, W. G. et al. Presenilin 1 controls γ-secretase processing of amyloid precursor protein in pre-Golgi compartments of hippocampal neurons. J. Cell Biol. 147, 277–294 (1999).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  82. Ray, W. J. et al. Cell surface presenilin-1 participates in the γ-secretase-like proteolysis of notch. J Biol Chem 274, 36801–36807 (1999).

    Article  CAS  PubMed  Google Scholar 

  83. Chyung, J. H. & Selkoe, D. J. Cell surface events in APP processing to generate Aβ. Soc. Neurosci. Abstr. 295.9 (2003).

  84. Dawson, T. M. & Dawson, V. L. Molecular pathways of neurodegeneration in Parkinson's disease. Science 302, 819–822 (2003).

    Article  CAS  PubMed  Google Scholar 

  85. Polymeropoulos, M. H. et al. Mutation in the α-synuclein gene identified in families with Parkinsons disease. Science 276, 2045–2047 (1997).

    Article  CAS  PubMed  Google Scholar 

  86. Spillantini, M. G., Crowther, R. A., Jakes, R., Hasegawa, M. & Goedert, M. α-Synuclein in filamentous inclusions of Lewy bodies from Parkinson's disease and dementia with lewy bodies. Proc. Natl Acad. Sci. USA 95, 6469–6473 (1998).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  87. Baba, M. et al. Aggregation of α-synuclein in Lewy bodies of sporadic Parkinson's disease and dementia with Lewy bodies. Am. J. Pathol. 152, 879–884 (1998).

    CAS  PubMed  PubMed Central  Google Scholar 

  88. Sherer, T. B., Kim, J. H., Betarbet, R. & Greenamyre, J. T. Subcutaneous rotenone exposure causes highly selective dopaminergic degeneration and α-synuclein aggregation. Exp. Neurol. 179, 9–16 (2003).

    Article  CAS  PubMed  Google Scholar 

  89. Ischiropoulos, H. & Beckman, J. S. Oxidative stress and nitration in neurodegeneration: cause, effect, or association? J. Clin. Invest. 111, 163–169 (2003).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  90. Dauer, W. et al. Resistance of α-synuclein null mice to the parkinsonian neurotoxin MPTP. Proc. Natl Acad. Sci. USA 99, 14524–14529 (2002).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  91. Lansbury, P. T. Jr. & Brice, A. Genetics of Parkinson's disease and biochemical studies of implicated gene products. Curr. Opin. Genet. Dev. 12, 299–306 (2002).

    Article  CAS  PubMed  Google Scholar 

  92. Singleton, A. B. et al. α-Synuclein locus triplication causes Parkinson's disease. Science 302, 841 (2003).

    Article  CAS  PubMed  Google Scholar 

  93. Kitada, T. et al. Mutations in the parkin gene cause autosomal recessive juvenile parkinsonism. Nature 392, 605–608 (1998).

    Article  CAS  PubMed  Google Scholar 

  94. Shimura, H. et al. Familial Parkinson disease gene product, parkin, is a ubiquitin-protein ligase. Nature Genet. 25, 302–305 (2000).

    Article  CAS  PubMed  Google Scholar 

  95. Zhang, Y. et al. Parkin functions as an E2-dependent ubiquitin-protein ligase and promotes the degradation of the synaptic vesicle-associated protein, CDCrel-1. Proc. Natl Acad. Sci. USA 97, 13354–13359 (2000).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  96. Goldberg, M. S. et al. Parkin-deficient mice exhibit nigrostriatal deficits but not loss of dopaminergic neurons. J. Biol. Chem. 278, 43628–43635 (2003).

    Article  CAS  PubMed  Google Scholar 

  97. Palacino, J. J. et al. Mitochondrial dysfunction and oxidative damage in parkin-deficient mice. J. Biol. Chem. 279, 18614–18622 (2004).

    Article  CAS  PubMed  Google Scholar 

  98. Greenamyre, J. T. & Hastings, T. G. Biomedicine. Parkinson's—divergent causes, convergent mechanisms. Science 304, 1120–1122 (2004).

    Article  CAS  PubMed  Google Scholar 

  99. Vila, M. & Przedborski, S. Targeting programmed cell death in neurodegenerative diseases. Nature Rev. Neurosci. 4, 365–375 (2003).

    Article  CAS  Google Scholar 

  100. Leroy, E. et al. The ubiquitin pathway in Parkinson's disease. Nature 395, 451–452 (1998).

    Article  CAS  PubMed  Google Scholar 

  101. Bonifati, V. et al. Mutations in the DJ-1 gene associated with autosomal recessive early-onset parkinsonism. Science 299, 256–259 (2003).

    Article  CAS  PubMed  Google Scholar 

  102. Valente, E. M. et al. Hereditary early-onset Parkinson's disease caused by mutations in PINK1. Science 304, 1158–1160 (2004).

    Article  CAS  PubMed  Google Scholar 

  103. Liu, Y., Fallon, L., Lashuel, H. A., Liu, Z. & Lansbury, P. T. Jr. The UCH-L1 gene encodes two opposing enzymatic activities that affect α-synuclein degradation and Parkinson's disease susceptibility. Cell 111, 209–218 (2002).

    Article  CAS  PubMed  Google Scholar 

  104. Quigley, P. M., Korotkov, K., Baneyx, F. & Hol, W. G. The 1.6-A crystal structure of the class of chaperones represented by Escherichia coli Hsp31 reveals a putative catalytic triad. Proc. Natl Acad. Sci. USA 100, 3137–3142 (2003).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

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D.J.S. is a founding scientist of Athena Neurosciences and consultant to Elan Plc.

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Selkoe, D. Cell biology of protein misfolding: The examples of Alzheimer's and Parkinson's diseases. Nat Cell Biol 6, 1054–1061 (2004). https://doi.org/10.1038/ncb1104-1054

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