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“Life, Jim, But Not as We Know It”? Transmissible Dementias and the Prion Protein

Published online by Cambridge University Press:  03 January 2018

Paul J. Harrison
Affiliation:
Department of Anatomy and Cell Biology, St Mary's Hospital Medical School and Honorary Senior Registrar, Academic Department of Psychiatry, St Mary's Hospital, London
Gareth W. Roberts*
Affiliation:
Department of Anatomy and Cell Biology, St Mary's Hospital Medical School, Norfolk Place, London W2 1PG
*
Correspondence

Abstract

The spongiform encephalopathies are unusual in several respects. Firstly, they are transmissible, and in some cases inheritable. Secondly, variants of these disorders occur in many species and can be transmitted by consumption of infected material; this has led to concern as to the potential risk from eating contaminated animal products. Thirdly, increasing evidence suggests that a ‘prion’ protein is central to their aetiology and pathogenesis, and that no nucleic acid is involved in the infective process. The role of the prion gene and its protein is outlined and proposed as the basis for an improved classification of the transmissible dementias.

Type
Review Article
Copyright
Copyright © Royal College of Psychiatrists, 1991 

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Footnotes

Chief Medical Officer McCoy – Star Trek.

References

Aiken, J. M., Williamson, J. L. & Marsh, J. F. (1989) Evidence of mitochondrial involvement in scrapie infection. Journal of Virology, 63, 16861694.CrossRefGoogle ScholarPubMed
Allsop, D., Wing, C. W., Ikeda, S., et al (1988) Immunohistochemical evidence for the derivation of a peptide ligand from the amyloid β-protein precursor of Alzheimer disease. Proceedings of the National Academy of Sciences USA, 85, 27902794.Google Scholar
Arendt, T., Bigl, V. & Arendt, A. (1984) Neurone loss in the nucleus basalis of Meynert in Creutzfeldt–Jakob disease. Acta Neuropathologica (Berlin), 65, 8588.CrossRefGoogle ScholarPubMed
Baker, H. F., Ridley, R. M. & Crow, T. J. (1985) Experimental transmission of an autosomal dominant spongiform encephalopathy: does the infectious agent originate in the human genome? British Medical Journal, 291, 299302.Google Scholar
Ball, M. J. (1980) Features of Creutzfeldt–Jakob disease in brains of patients with familial dementia of the Alzheimer type. Canadian Journal of Neurological Sciences, 7, 5157.Google Scholar
Barlow, R. M. & Middleton, D. J. (1990) Dietary transmission of bovine spongiform encephalopathy to mice. Veterinary Record, 126, 111112.Google ScholarPubMed
Barton, A. J. L., Harrison, P. J., Najlerahim, A., et al (1990) Increased tau messenger RNA in Alzheimer's disease hippocampus. American Journal of Pathology, 137, 497502.Google ScholarPubMed
Basler, K., Oesch, B., Scott, M., et al (1986) Scrapie and cellular PrP isoforms are encoded by the same chromosomal gene. Cell, 46, 417428.Google Scholar
Beck, E. (1984) Lesions akin to transmissible spongiform encephalopathy in the brains of rats inoculated with immature cerebellum. Their significance in the aetiology of these disorders. Acta Neuropathologica (Berlin), 76, 295305.Google Scholar
Beck, E., Bak, I. J., Christie, J. F., et al (1975) Experimental kuru in the spider monkey. Histological and ultrastructural studies in the brain during early stages of incubation. Brain, 98, 595612.Google Scholar
Beck, E. & Daniel, P. M. (1987) Neuropathology of transmissible spongiform encephalopathies. In Prions: Novel Infectious Pathogens Causing Scrapie and Creutzfeldt–Jakob disease (eds S. B. Prusiner & M. P. McKinley), pp. 331383. San Diego: Academic Press.Google Scholar
Bradley, R. (1990) Bovine spongiform encephalopathy: the need for knowledge, balance, patience and action. Journal of Pathology, 160, 283285.CrossRefGoogle ScholarPubMed
Brown, H. R., Goller, N. L., Rudelli, R. D., et al (1990) The mRNA encoding the scrapie agent is present in a variety of non-neuronal cells. Acta Neuropathologica (Berlin), 80, 16.CrossRefGoogle Scholar
Brown, P. (1989) Central nervous system amyloidoses: a comparison of Alzheimer's disease and Creutzfeldt–Jakob disease. Neurology, 39, 11031105.Google Scholar
Brown, P., Rodgers-Johnson, P., Cathala, F., et al (1984) Creutzfeldt–Jakob disease of long duration: clinicopathological characteristics, transmissibility, and differential diagnosis. Annals of Neurology, 16, 295304.Google Scholar
Brown, P., Gajdusek, D. C., Gibbs, C. J., et al (1985) Potential epidemic of Creutzfeldt–Jakob disease from human growth hormone therapy. New England Journal of Medicine, 313, 728731.CrossRefGoogle ScholarPubMed
Brown, P., Cathala, F., Cstaigne, P., et al (1986) Creutzfeldt–Jakob disease: clinical analysis of a consecutive series of 230 neuropathologically verified cases. Annals of Neurology, 20, 597602.CrossRefGoogle ScholarPubMed
Brown, P., Cathala, F., Raubertas, R. F., et al (1987) The epidemiology of Creutzfeldt–Jakob disease: conclusions of a 15 year investigation in France and review of the world literature. Neurology, 37, 895904.Google Scholar
Brown, P., Jannotta, F., Gibbs, C. J., et al (1990a) Co-existence of Creutzfeldt–Jakob disease and Alzheimer's disease in the same patient. Neurology, 40, 226228.Google Scholar
Brown, P., Liberski, P. P., Wolff, A., et al (1990b) Conservation of infectivity in purified fibrillary extracts of scrapie-infected hamster brain after sequential enzymatic digestion or poly-acrilamide gel electrophoresis. Proceedings of the National Academy of Sciences USA, 87, 72407244.Google Scholar
Brownell, B. & Oppenheimer, D. R. (1965) An ataxic form of subacute presenile polioencephalopathy (Creutzfeldt–Jakob disease). Journal of Neurology, Neurosurgery and Psychiatry, 28, 350361.CrossRefGoogle ScholarPubMed
Bugiani, O., Tagliavini, F., Giacconne, G., et al (1989) Creutzfeldt–Jakob disease: astrocytosis and spongiform changes of the white matter. In Unconventional Virus Diseases of the Central Nervous System (eds L. A. Court, D. Dormont, P. Brown, et al), pp. 172183. Fontenay-aux-Roses Cedex: CEA, Department de Protection Sanitaire.Google Scholar
Carlson, G. A., Kingsbury, D. T., Goodman, P. A., et al (1986) Linkage of prion protein and scrapie incubation time genes. Cell, 46, 503511.Google Scholar
Carlson, G. A., Westaway, D., DeArmond, S. J., et al (1989) Primary structure of prion proteins may modify scrapie isolate properties. Proceedings of the National Academy of Sciences USA, 86, 74757479.Google Scholar
Casaccia, P., Ladoganon, A., Xi, Y. G., et al (1989) Levels of infectivity in the blood throughout the incubation period of hamsters peripherally injected with scrapie. Archives of Virology, 108, 145149.Google Scholar
Cathala, F. (1990) Scrapie in France. Journal of the American Veterinary Medical Association, 196, 1680.CrossRefGoogle ScholarPubMed
Ceroni, M., Piccardo, P., Safar, J., et al (1990) Scrapie infectivity and prion protein are distributed in the same pH range in agarose isoelectric focusing. Neurology, 40, 508513.Google Scholar
Cheseboro, B., Race, R., Wehrly, K., et al (1985) Identification of scrapie prion protein-specific mRNA in scrapie-infected and uninfected brain. Nature, 315, 331333.Google Scholar
Chou, S. M., Payne, W. N. & Gibbs, C. J. (1980) Transmission and scanning electron microscopy of spongiform change in Creutzfeldt–Jakob disease. Brain, 103, 885904.Google Scholar
Clinton, J., Lantos, P. L., Rossor, M., et al (1990) Immuno–cytochemical confirmation of prion protein. Lancet, 336, 515.CrossRefGoogle Scholar
Collinge, J., Owen, F., Lofthouse, R., et al (1989) Diagnosis of Gerstmann–Sträussler syndrome in familial dementia with prion protein gene analysis. Lancet, ii, 1516.Google Scholar
Collinge, J., Owen, F., Poulter, M., et al (1990) Prion dementia without characteristic pathology. Lancet, ii, 79.Google Scholar
Corsellis, J. A. N. (1979) On the transmission of dementia. A personal view of the slow virus problem. British Journal of Psychiatry, 134, 553559.CrossRefGoogle ScholarPubMed
Cotman, C. W. & Anderson, K. J. (1988) Synaptic plasticity and functional stabilization in the hippocampal formation: possible role in Alzheimer's disease. Advances in Neurology, 47, 313325.Google Scholar
Cousens, S. N., Harries-Jones, R., Knight, R., et al (1990) Geographical distribution of cases of Creutzfeldt–Jakob disease in England and Wales 1970–84. Journal of Neurology, Neurosurgery and Psychiatry, 53, 459465.Google Scholar
Czub, M., Braig, H. R. & Diringer, H. (1988) Replication of the scrapie agent in hamsters infected intracerebrally confirms the pathogenesis of an amyloid-inducing virosis. Journal of General Virology, 69, 17531756.Google Scholar
Davanipour, Z., Alter, M., Sobel, E., et al (1985) Creutzfeldt–Jakob disease: possible medical risk factors. Neurology, 35, 14831486.CrossRefGoogle ScholarPubMed
Davanipour, Z., Alter, M., Coslett, H. B., et al (1988) Prolonged progressive dementia with spongiform encephalopathy: a variant of Creutzfeldt–Jakob disease? Neuroepidemiology, 7, 5665.Google Scholar
De Armond, S. J., Mobley, W. C., DeMott, D. L., et al (1987) Changes in the localization of brain prion proteins during scrapie infection. Neurology, 37, 12711280.Google Scholar
De Courten-Myers, G. & Mandybur, T. (1987) Atypical Gerstmann–Sträussler syndrome or familial spinocerebellar ataxia and Alzheimer disease? Neurology, 37, 269275.CrossRefGoogle ScholarPubMed
Doh-Ura, K., Tateishi, J., Sasaki, H., et al (1989) Pro-leu change at position 102 of prion protein is the most common but not the sole mutation related to Gerstmann–Sträussler syndrome. Biochemical and Biophysical Research Communications, 163, 974979.Google Scholar
Doh-Ura, K., Tateishi, J., Kitamoto, T., et al (1990) Creutzfeldt–Jakob disease patients with congophilic kuru plaques have the missense variant prion protein common to Gerstmann–Sträussler syndrome. Annals of Neurology, 27, 121126.Google Scholar
Duguid, N. R., Bohmont, C. W., Liu, N., et al (1989) Changes in brain gene expression shared by scrapie and Alzheimer disease. Proceedings of the National Academy of Sciences USA, 86, 72607264.Google Scholar
Farlow, M. R., Yee, R. D., Dlouhy, S. R., et al (1989) Gerstmann–Sträussler–Scheinker disease. I. Extending the clinical spectrum. Neurology, 39, 14461452.Google Scholar
Farquhar, C. F., Somerville, R. A. & Ritchie, L. A. (1989) Post-mortem immunodiagnosis of scrapie and bovine spongiform encephalopathy. Journal of Virological Methods, 24, 215222.Google Scholar
Flament-Durand, J. & Couck, A. M. (1979) Spongiform alterations in brains of presenile dementia. Acta Neuropathologica (Berlin), 46, 159162.Google Scholar
Frangione, B., Haltia, M., Ghiso, J., et al (1990) Co-occurrence of two amyloid proteins, gelsolin and beta-protein, in a patient with familial amyloidosis, Finnish type, and Alzheimer's disease. Neurobiology of Aging, 11, 300.Google Scholar
Fraser, H. & Dickinson, A. G. (1985) Targeting of scrapie lesions and spread of agent via the retino-tectal projection. Brain Research, 346, 3241.Google Scholar
Gabizon, R. & Prusiner, S. B. (1990) Prion liposomes. Biochemical Journal, 266, 114.Google Scholar
Gajdusek, D. C. (1977) Unconventional viruses and the origin and disappearance of kuru. Science, 197, 943960.Google Scholar
Gajdusek, D. C. (1985) Hypothesis: interference with axonal transport of neurofilaments as a common pathogmatic mechanism in certain diseases of the central nervous system. New England Journal of Medicine, 312, 711719.Google Scholar
Gajdusek, D. C., Gibbs, C. J. & Alpers, M. (1966) Experimental transmission of a kuru-like syndrome to chimpanzees. Nature, 209, 794796.Google Scholar
Gajdusek, D. C., Gibbs, C. J., Asher, D. M., et al (1977) Precautions in medical care of and in handling material from patients with transmissible virus dementias (Creutzfeldt–Jakob disease). New England Journal of Medicine, 297, 12531258.Google Scholar
Galvez, S. & Cartier, L. (1984) Computerised tomography in 15 cases of Creutzfeldt–Jakob disease with histological verification. Journal of Neurology, Neurosurgery and Psychiatry, 47, 12441246.Google Scholar
Ghetti, B., Tagliavini, F., Masters, C. L., et al (1989) Gerstmann–Straussler–Scheinker disease. II. Neurofibrillary tangles and plaques with PrP-amyloid coexist in an affected family. Neurology, 39, 14531459.Google Scholar
Gibbs, C. J., Gajdusek, D. C., Asher, D. M., et al (1968) Creutzfeldt–Jakob disease (spongiform encephalopathy): transmission to the chimpanzee. Science, 161, 388389.Google Scholar
Gibbs, C. J., Amyx, H. L., Bacote, A., et al (1980) Oral transmission of kuru, Creutzfeldt–Jakob disease and scrapie to non-human primates. Journal of Infectious Diseases, 142, 205208.CrossRefGoogle Scholar
Goldfarb, L. G., Brown, P., Goldgaber, D., et al (1990a) Identical mutation in unrelated patients with Creutzfeldt–Jakob disease. Lancet, 336, 174175.CrossRefGoogle ScholarPubMed
Goldfarb, L. G., Mitrova, E., Brown, P., et al (1990b) Mutation in codon 200 of scrapie amyloid protein gene in two clusters of Creutzfeldt–Jakob disease in Slovakia. Lancet, 336, 514515.CrossRefGoogle ScholarPubMed
Goldgaber, D., Goldfarb, L. G., Brown, P., et al (1989) Mutations in familial Creutzfeldt–Jakob disease and Gerstmann–Sträussler–Scheinker syndrome. Experimental Neurology, 106, 204206.Google Scholar
Goudsmit, J., Morrow, C. H., Asher, D. M., et al (1980) Evidence for and against the transmissibility of Alzheimer disease. Neurology, 30, 945950.Google Scholar
Gray, E. G. (1986) Spongiform encephalopathy: a neurocytologist's viewpoint with a note on Alzheimer's disease. Neuropathology and Applied Neurobiology, 12, 149172.Google Scholar
Griffin, B. E. (1985) Unconventional viruses or prions? British Medical Journal, 290, 17651766.Google Scholar
Hadlow, W. J. (1959) Scrapie and kuru. Lancet, ii, 289290.CrossRefGoogle Scholar
Hardy, J. A. (1989) ‘Slow virus’ dementias: prion gene holds the key. Trends in Neuroscience, 12, 168169.Google Scholar
Harrison, P. J. (1990) Are mental states a useful concept? Neurophilosophical influences on phenomenology and psychopathology. Journal of Nervous and Mental Disease, (in press).Google Scholar
Harrison, P. J. & Pearson, R. C. A. (1989) Olfaction and psychiatry. British Journal of Psychiatry, 155, 822828.Google Scholar
Harrison, P. J. & Pearson, R. C. A. (1990) In situ hybridization histochemistry and the study of gene expression in the human brain. Progress in Neurobiology, 34, 271312.Google Scholar
Hirano, A., Ghatak, N. R, Johnson, A. B., et al (1972) Argentophilic plaques in Creutzfeldt–Jakob disease. Archives of Neurology, 26, 530542.Google Scholar
Hope, J. & Kimberlin, R. H. (1987) The molecular biology of scrapie: the last two years. Trends in Neuroscience, 10, 149151.Google Scholar
Hope, J., Ritchie, L., Farquhar, C., et al (1989) Bovine spongiform encephalopathy: a scrapie-like disease of British cattle. Progress in Clinical and Biological Research, 317, 659667.Google Scholar
Hsaio, K., Baker, H. F., Crow, T. J., et al (1989) Linkage of a prion protein missense variant to Gerstmann–Sträussler syndrome. Nature, 338, 342345.Google Scholar
Hsaio, K., Cass, C., Conneally, P. M., et al (1990) Atypical Gerstmann–Striussler–Scheinker syndrome with neurofibrillary tangles: no mutation in the prion protein open-reading-frame in a patient of the Indiana kindred. Neurobiology of Aging, 11, 302.Google Scholar
Hunter, G. D. (1972) Scrapie: a prototype slow infection. Journal of Infectious Diseases, 125, 427440.CrossRefGoogle ScholarPubMed
Ihara, Y. (1988) Massive somatodendritic sprouting of cortical neurons in Alzheimer's disease. Brain Research, 459, 138144.Google Scholar
Irving, W. L., Crimmins, D. S., Masters, C. L., et al (1990) Creutzfeldt–Jakob disease and slow infections: a review. Australian and New Zealand Medical Journal, 20, 283290.Google Scholar
Jones, H. R., Hedley-Whyte, T., Friedberg, S. R., et al (1985) Ataxic Creutzfeldt–Jakob disease: diagnostic techniques and neuropathologic observations in early disease. Neurology, 35, 254257.Google Scholar
Kim, J. H. & Manuelidis, E. E. (1979) Neuronal alterations in experimental Creutzfeldt–Jakob disease: a Golgi study. Journal of the Neurological Sciences, 99, 93101.Google Scholar
Kimberlin, R. H. (1990) Bovine spongiform encephalopathy: taking stock of the issues. Nature, 345, 763764.CrossRefGoogle ScholarPubMed
Kimberlin, R. H., Hall, S. M. & Walker, C. A. (1983) Pathogenesis of mouse scrapie. Evidence for direct neural spread of infection to the CNS after injection of sciatic nerve. Journal of Neurological Sciences, 61, 315325.Google Scholar
Klatzo, I., Gajdusek, D.C. & Zigas, V. (1959) Pathology of kuru. Laboratory Investigation, 8, 799847.Google Scholar
Knopman, D. S., Mastri, A. R., Frey, W. H., et al (1990) Dementia lacking distinctive histological features. A common non-Alzheimer degenerative dementia. Neurology, 40, 251256.Google Scholar
Kondo, K. & Kuroiwa, Y. (1982) A case control study of Creutzfeldt–Jakob disease: association with physical injuries. Annals of Neurology, 11, 377381.Google Scholar
Koo, E. H., Sisodia, S. S., Archer, D. R., et al (1990) Precursor of amyloid protein in Alzheimer disease undergoes fast anterograde axonal transport. Proceedings of the National Academy of Sciences USA, 87, 15611565.Google Scholar
Kretschmar, H. A., Stowring, L. E., Westaway, D., et al (1986a) Molecular cloning of a human prion protein cDNA. DNA, 5, 315324.Google Scholar
Kretschmar, H. A., Prusiner, S. B., Stowring, L. E., et al (1986b) Scrapie prion proteins are synthesized in neurons. American Journal of Pathology, 122, 15.Google Scholar
Levy, E., Carman, M. D., Fernandez-Madrid, I. J., et al (1990) Mutation of the Alzheimer's disease amyloid gene: hereditary cerebral hemorrhage, Dutch type. Science, 248, 11241126.Google Scholar
Lishman, W. A. (1987) Organic Psychiatry. The Psychological Consequences of Cerebral Disorder (2nd edn). Oxford: Blackwell.Google Scholar
Lopez, C. D., Yost, C. S., Prusiner, S. B., et al (1990) Unusual topogenic sequence directs prion protein biosynthesis. Science, 248, 226229.Google Scholar
Lowenstein, D. H., Butler, D. A., Westaway, D., et al (1990) Three hamster species with different scrapie incubation times and neuropathological features encode distinct prion proteins. Molecular and Cellular Biology, 10, 11531163.Google Scholar
Mancardi, G. L., Mandybur, T. I. & Liwnicz, B. H. (1982) Spongiform-like changes in Alzheimer's disease: an ultrastructural study. Acta Neuropathologica (Berlin), 56, 146150.Google Scholar
Manuelidis, E. E., Kim, J. H., Mericangas, J. R., et al (1985) Transmission to animals of Creutzfeldt–Jakob disease from human blood. Lancet, ii, 896897.Google Scholar
Manuelidis, E. E., de Fioueiredo, J. M., Kim, J. H., et al (1988) Transmission studies from blood of Alzheimer disease patients and healthy relatives. Proceedings of the National Academy of Sciences USA, 85, 48984901.Google Scholar
Manuelidis, E. E., Tesin, D. M., Sklavidis, T., et al (1987a) Astrocyte gene expression in Creutzfeldt–Jakob disease. Proceedings of the National Academy of Sciences USA, 84, 59375941.Google Scholar
Manuelidis, E. E., Sklavidis, T. & Manuelidis, E. E. (1987b) Evidence suggesting that PrP is not the infectious agent in Creutzfeldt–Jakob disease. EMBO Journal, 6, 341347.Google Scholar
Manuelidis, E. E., Sklavidis, T. & Manuelidis, E. E. (1989) On the origin and significance of scrapie associated fibrils. In Unconventional Virus Diseases of the Central Nervous System (eds L. A. Court, D. Dormont, P. Brown, et al), pp. 123141. Fontenay-aux-Roses Cedex: CEA, Department de Protection Sanitaire.Google Scholar
Masters, C. L., Gajdusek, D. C. & Gibbs, C. J. (1981a) The familial occurrence of Creutzfeldt–Jakob disease and Alzheimer's disease. Brain, 104, 535558.Google Scholar
Masters, C. L., Gajdusek, D. C. & Gibbs, C. J. (1981b) Creutzfeldt–Jakob disease virus isolations from the Gerstmann–Sträussler syndrome. With an analysis of the various forms of amyloid plaque deposition in the virus-induced spongiform encephalopathies. Brain, 104, 559588.Google Scholar
Matthews, W. B. (1981) Slow virus infections. Journal of the Royal College of Physicians, 15, 109112.Google Scholar
Matthews, W. B. (1990) Bovine spongiform encephalopathy. British Medical Journal, 300, 412413.Google Scholar
Matthews, W. B. & Will, R. G. (1981) Creutzfeldt–Jakob disease in a lifelong vegetarian. Lancet, i, 937.Google Scholar
McKinley, M. C., Hay, B., Lingappa, V., et al (1987) Developmental expression of PrP gene in brain. Developmental Biology, 121, 105110.Google Scholar
Mendell, J. R., Jiang, X-S., Warmolts, J. R., et al (1990) Diagnosis of Maryland/German familial amyloidotic polyneuropathy using allele-specific, enzymatically amplified, genomic DNA. Annals of Neurology, 27, 553557.Google Scholar
Meyer, R. K., McKinley, M. P., Bowman, K. A., et al (1986) Separation and properties of cellular and scrapie prion proteins. Proceedings of the National Academy of Sciences USA, 83, 23102314.Google Scholar
Mobley, W. C., Neve, R. L., Prusiner, S. B., et al (1988) Nerve growth factor increases mRNA levels for the prion protein and the beta-amyloid protein precursor in developing hamster brain. Proceedings of the National Academy of Sciences USA, 85, 98119815.Google Scholar
Nakazato, Y., Hirato, J., Ishida, Y., et al (1990) Swollen cortical neurons in Creutzfeldt–Jakob disease contain a phosphorylated neurofilament epitope. Journal of Neuropathology and Experimental Neurology, 49, 197205.Google Scholar
Neary, D., Snowden, J. S., Mann, D. M. A., et al (1990) Frontal lobe dementia and motor neuron disease. Journal of Neurology, Neurosurgery and Psychiatry, 53, 2332.Google Scholar
Nochlin, D., Sumi, S. M., Bird, T. D., et al (1989) Familial dementia with PrP-positive plaques: a variant of Gerstmann–Sträussler syndrome. Neurology, 39, 910918.Google Scholar
Oesch, B., Westaway, D., Walchli, M., et al (1985) A cellular gene encodes scrapie PrP 27–30 protein. Cell, 40, 735745.Google Scholar
Oesch, B., Teplow, D. B., Stahl, N., et al (1990) Identification of cellular proteins binding to the scrapie prion protein. Biochemistry, 29, 58485855.Google Scholar
Owen, F., Poulter, M., Lofthouse, R., et al (1989) Insertion in prion protein gene in familial Creutzfeldt–Jakob disease. Lancet, i, 5152.Google Scholar
Owen, F., Poulter, M., Shah, T., et al (1990a) An in-frame insertion in the prion protein gene in familial Creutzfeldt–Jakob disease. Molecular Brain Research, 7, 273276.Google Scholar
Owen, F., Poulter, M., Collinge, J., et al (1990b) Insertions in the prion protein gene in atypical dementias. Experimental Neurology, (in press).CrossRefGoogle Scholar
Palsdottir, A., Thorsteinsson, L., Olafsson, I., et al (1988) Mutation in cystatin C gene causes hereditary brain haemorrhages. Lancet, ii, 603604.Google Scholar
Pattison, I. H. & Millson, G. C. (1961) Experimental transmission of scrapie to goats and sheep by the oral route. Journal of Comparative Pathology, 71, 171176.Google Scholar
Pearlman, R. L., Towfighi, J., Pezeshkpour, G. H., et al (1988) Clinical significance of types of cerebellar amyloid plaques in human spongiform encephalopathies. Neurology, 38, 12491254.Google Scholar
Pearson, R. C. A., Esiri, M. M., Hiorns, R. W., et al (1985) Anatomical correlates of the distribution of the pathological changes in the neocortex in Alzheimer's disease. Proceedings of the National Academy of Sciences USA, 82, 45314534.Google Scholar
Piccardo, P., Safar, J., Ceroni, M., et al (1990) Immunohistochemical localization of prion protein in spongiform encephalopathies and normal brain tissue. Neurology, 40, 518522.CrossRefGoogle ScholarPubMed
Prusiner, S. B. (1982) Novel proteinaceous infectious particles cause scrapie. Science, 216, 136144.Google Scholar
Prusiner, S. B. (1987) Prions and neurodegenerative disorders. New England Journal of Medicine, 317, 15711581.Google Scholar
Prusiner, S. B., Cochran, S. P. & Alpers, M. P. (1985) Transmission of scrapie in hamsters. Journal of Infectious Diseases, 152, 971978.Google Scholar
Race, R. E., Graham, K., Ernst, D., et al (1990) Analysis of linkage between scrapie incubation period and the prion protein gene in mice. Journal of General Virology, 71, 493497.Google Scholar
Rewcastle, N. B., Gibbs, C. J. & Gajdusek, D. C. (1978) Transmission of familial Alzheimer's disease to primates. Journal of Neuropathology and Experimental Neurology, 37, 679.Google Scholar
Ridley, R. M., Baker, H. F. & Crow, T. J. (1986) Transmissible and non-transmissible neurodegenerative disease: similarities in age of onset and genetics in relation to aetiology. Psychological Medicine, 16, 199207.Google Scholar
Robakis, N. K., Sawh, P. R., Wolfe, G. C., et al (1986) Isolation of a cDNA clone encoding the leader peptide of prion protein and expression of the homologous gene in various tissues. Proceedings of the National Academy of Sciences USA, 83, 63776381.Google Scholar
Roberts, G. W. (1990) Prion disease – spongiform encephalopathies unveiled. Lancet, ii, 2122.Google Scholar
Roberts, G. W., Lofthouse, R., Brown, R., et al (1986) Prion protein immunoreactivity in human transmissible dementias. New England Journal of Medicine, 315, 12311233.Google ScholarPubMed
Roberts, G. W., Lofthouse, R., Allsop, D., et al (1988) CNS amyloid proteins in neurodegenerative diseases. Neurology, 38, 15341540.Google Scholar
Rosenberg, R. N., White, C. L., Brown, P., et al (1986) Precautions in handling tissues, fluids and other contaminated materials from patients with documented or suspected Creutzfeldt–Jakob disease. Annals of Neurology, 19, 7577.Google Scholar
Safar, J., Ceroni, M., Piccardo, P., et al (1990a) Subcellular distribution and physicochemical properties of scrapie-associated precursor protein and relationship with scrapie agent. Neurology, 40, 503508.Google Scholar
Safar, J., Wang, W., Padgett, M. P., et al (1990b) Molecular mass, biochemical composition, and physicochemical behaviour of the infectious form of the scrapie precursor protein monomer. Proceedings of the National Academy of Sciences USA, 87, 63736377.Google Scholar
Salazar, C., Masters, C. L., Gajdusek, D. C., et al (1983) Syndrome of amyotrophic lateral sclerosis and dementia: relationship to transmissible Creutzfeldt–Jakob disease. Annals of Neurology, 14, 1726.Google Scholar
Scott, M., Foster, D., Mirenda, C., et al (1989) Transgenic mice expressing hamster prion protein produce species-specific scrapie infectivity and amyloid plaques. Cell, 58, 847857.Google Scholar
Selkoe, D. J. (1989) Molecular pathology of amyloidogenic proteins and the role of vascular amyloidosis in Alzheimer's disease. Neurobiology of Aging, 10, 387395.Google Scholar
Serban, D., Taraboulos, A., DeArmond, S. J., et al (1990) Rapid detection of Creutzfeldt–Jakob disease and scrapie prion proteins. Neurology, 40, 110117.Google Scholar
Sharpe, A. H., Hunter, J. H., Chassler, P., et al (1990) Role of abortive retroviral infection of neurons in spongiform CNS degeneration. Nature, 346, 181183.Google Scholar
Sisodia, S. S., Koo, E. H., Beyreuther, K., et al (1990) Evidence that beta-amyloid protein in Alzheimer's disease is not derived by normal processing. Science, 248, 492495.Google Scholar
Sklavidis, T. K., Manuelidis, L. & Manuelidis, E. E. (1989) Physical properties of the Creutzfeldt–Jakob agent. Journal of Virology, 63, 12121222.Google Scholar
Smith, T. W., Anwer, U., DeGirolami, U., et al (1987) Vacuolar change in Alzheimer's disease. Archives of Neurology, 44, 12251228.Google Scholar
Sparkes, R. S., Simon, M., Cohn, V. H., et al (1986) Assignment of the human and mouse prion genes to homologous chromosomes. Proceedings of the National Academy of Sciences USA, 83, 73587362.Google Scholar
Stahl, N., Borchelt, D. R., Hsaio, K., et al (1987) Glycolipid modification of the scrapie prion protein. Cell, 51, 229240.Google Scholar
Stahl, N., Borchelt, D. R. & Prusiner, S. B. (1990) Differential release of cellular and scrapie prion proteins from cellular membranes by phosphatidylinositol-specific phospholipase C. Biochemistry, 29, 54055412.Google Scholar
Tiller-Borcich, J. K. & Ulrich, H. (1986) Abnormal arborisations of Purkinje cell dendrites in Creutzfeldt–Jakob disease: a manifestation of neuronal plasticity? Journal of Neurology, Neurosurgery and Psychiatry, 49, 581584.Google Scholar
Tsuji, S. & Kuroiwa, Y. (1983) Creutzfeldt–Jakob disease in Japan. Neurology, 33, 15031506.Google Scholar
Van Broeckhoven, C., Haan, J., Bakker, E., et al (1990) Amyloid β protein precursor gene and hereditary cerebral hemorrhage with amyloidosis (Dutch). Science, 248, 11201121.Google Scholar
Weller, R. O. (1989) Iatrogenic transmission of Creutzfeldt–Jakob disease. Psychological Medicine, 19, 14.Google Scholar
Westaway, D., Goodman, P. A., Mirenda, C. A., et al (1987) Distinct prion proteins in short and long scrapie incubation period mice. Cell, 51, 651662.Google Scholar
Westaway, D., Carlson, G. A. & Prusiner, S. B. (1989) Unravelling prion diseases through molecular genetics. Trends in Neuroscience, 12, 221227.Google Scholar
Whitson, J. S., Selkoe, D. J. & Cotman, C. W. (1989) Amyloid β-protein enhances the survival of hippocampal neurons in vitro.Google Scholar
Science, 243, 14881490.Google Scholar
Will, R. G. & Matthews, W. B. (1984) A retrospective study of Creutzfeldt–Jakob disease in England and Wales 1970–79 I: clinical features. Journal of Neurology, Neurosurgery and Psychiatry, 47, 134140.Google Scholar
Worster-Drought, C., Greenfeld, J. G. & Mcmenemy, W. H. (1944) A form of presenile dementia with spastic paralysis. Brain, 67, 3843.Google Scholar
Yankner, B. A., Dawes, L. R., Fisher, S., et al (1989) Neurotoxicity of a fragment of the amyloid precursor associated with Alzheimer's disease. Science, 245, 417420.Google Scholar
Yost, C. S., Lopez, C. D., Prusiner, S. B., et al (1990) Non-hydrophobic extracytoplasmic determinant of stop transfer in the prion protein. Nature, 343, 669672.Google Scholar
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