Alzheimer's Disease and Frontotemporal Dementias

A Review with Particular Reference to Pin1 Protein

 

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Compiled by: Julian Thorpe

 

Presenilins

Please Note: Due to time constraints, the text part of this page has not been updated for some time. However, references are added reasonably frequently.

Presenilins in relation to: APP ; Apoptosis ; Animal Models ; References

General

Presenilins (presenilin-1 and presenilin-2) are associated with chromosomes 14 and 1, respectively,  and it is the mutation of these genes (mainly on chromosome 14) which can lead to a familial form of early-onset AD which accounts for about 5% of all AD cases (e.g. see Chapman et al., 2001 ).

Presenilin-1 (PS1) and presenilin-2 (PS2) are 467 and 448 amino acids long, respectively.
Both are membrane proteins with multiple transmembrane regions and show a high degree of conservation between species.
Presenilins are believed to be sited within the endoplasmic reticulum (Doan et al., 1996) and Golgi . However, PS1 has recently been found to be associated with early endosomes (by subcellular fractionation and immunofluorescence microscopy of PC12 cells; Lah and Levey, 2000).
A homologous protein in C. elegans (known as sel-12) has recently been found. This protein has a known involvement in surface receptor signalling via one or more members of the notch family.
May form ion channels (have some homology with calcium channels).
Checler et al. (2000) review the role of the proteasome in modulating the intracellular concentrations of the presenilins. They consider targeting the proteasome as a possible point of therapeutic intervention in AD.

Presenilins and APP Proteolysis /Notch Signalling

N.B. Also please visit the website of the 'Institut National de la Sante et de la Recherche Medical' for detail further detail on presenilins and APP proteolysis

Research has associated FAD(familial AD)-linked PS1 variants with elevated A beta 1-42(43)/A beta 1-40 ratios (e.g. Borchelt et al., 1996 ; Lewis et al., 2000 ; S ato et al., 2001 ).
Recent studies suggest that presenilins might actually be the gamma-secretases (one of the proteases involved in beta-amyloid production via APP proteolysis ). This has yet to be proven definitively, however. See, e.g., Liet al ., 2000, Wolfe et al ., 1999a and 1999b. Xia, 2000 ).
The bulk of reseach results appears to point to the fact that the presenilins are, at the least, intimately involved in APP proteolysis (e.g. as an activator of, or a substrate adaptor for, l -secretase, or via delivery of l -secretase to APP-containing compartments; as suggested by Chen et al., 2000; and see review by Steiner and Haas, 2000 ).
However, more recent results from presenilin-deficient embryonic mouse fibroblasts have clouded the issue somewhat (Armogida et al., 2001). Their paper in Nature Cell Biology reported that mouse fibroblasts deficient in PS1, PS2, or both, still produced endogenous secreted and intracellular  40- and 42-amino-acid A beta peptides. However, presenilin deficiency did abolish the release of the Notch intracellular domain (NICD) from Notch. Their data thus showed, that in murine fibroblasts at least, NICD production is presenilin-dependent and that there is a gamma-secretase activity distinct from presenilin.
Notch receptor/ligand signalling is a highly-conserved mechanism controlling cell fate decisions throughout the animal kingdom .
The presenilins have been implicated in notch signalling via regulation of notch proteolysis ( Levitan and Greenwald, 1998 ; Berezovska et al., 2001 ; Fortini, 2001 ; Martys-Zage et al., 2001 ; Nakajima et al., 2000 ; Selkoe, 2001; and see Hartmann et al., 2001 ).
PS1 additionally regulates b-catenin signalling ( Kang et al., 1999) in a GSK-3beta -independent fashion (Palacino et al., 2001 ). As b -catenin also has a secondary role as a transcriptional regulator of the Wnt signal transduction cascade, others ( Anderton et al., 2000 ) have surmised that dysregulation of both the Notch and Wnt pathways might underlie AD progression. Some confirmation for this latter is given by the work of Jackson et al. (2002) which shows that human wild-type tau interacts with wingless pathway components to produce neurofibrillary pathology in Drosophila.
Specifically in regard to this latter and Pin1 , b -catenin is a Pin1 target protein . Ryo et al. (2001) have demonstrated (in breast cancer cells) that Pin1 increases the transcription of several b -catenin target genes (inc. cyclin D1 and c-Myc). Pin1 binds a phospo-Ser/Pro motif adjoining the APC(adenomatous polyposis coli protein)-binding site in b -catenin, and thereby inhibits its interaction with APC and increases its relocation to the nucleus.
All this latter would suggest that Pin1 would have a role in any effects upon Notch and Wnt signal transduction in AD, in addition to its more direct putative role in mediating APP proteolysis.


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Presenilins and Apoptosis

May be involved in apoptosis regulation: presenilins have been shown to modify the apoptotic response in primary neuronal cultures (see Czech et al., 2000 ).
Araki et al. (2000) have shown  - in cultured neurons - that PS2 overexpression enhances apoptosis and is associated with a down-regulation of Bcl-2 (Araki et al., 2001).

 

Presenilins and AD Models

Bornemann and Staufenbiel (2000) have generated transgenic mouse lines expressing the human amyloid precursor protein (APP) which displayed many features of AD pathology. Crossbreeding with transgenic mice carrying AD-linked presenilin mutations enhanced the observed pathology.
Leutner et al. (2000) used  transgenic mice with human PS1 mutations to show evidence of a reduction in the activity of two antioxidant enzymes (Cu/Zn superoxide dismutase and glutathione reductase).
Barrow et al. (2000) and Schneider et al. (2001) have demonstrated a disruption of intracellular calcium control and electrophysiological dysfunction in PS1 mutant mice.
Armogida et al. (2001) have used presenilin-deficient embryonic mouse fibroblasts to show that the production of endogenous secreted and intracellular  40- and 42-amino-acid A beta peptides is unaffected. However, presenilin deficiency did abolish the release of the Notch intracellular domain (NICD) from Notch. Their data thus showed, that in murine fibroblasts at least, NICD production is presenilin-dependent and that there is a gamma-secretase activity distinct from presenilin.
Mudher and Lovestone (2002) suggest that animal models have taken us tantalisingly close to the answer to plaque/tangle inter-relationships. These authors report that as (in human brain) "mutations in tau..." (that lead to the FTD disorders) "...give rise to tau-inclusion tangles but not plaques and yet mutations in APP or.... presenilin ...give rise to both plaques and tangles almost proves that amyloid pathology occurs upstream of tau pathology " (my italics).

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Some Related References
 
N.B. Free Medical Journals online now at : http://www.freemedicaljournals.com/
(These journals include: Neurology, Neurobiology of Disease, Journal of Neurochemistry, Alzheimer's Disease Review)

Abdul, HM, Wenk, GL, Gramling, M, Hauss-Wegrzyniak, B, Butterfield, DA (2004) APP and PS-1 mutations induce brain oxidative stress independent of dietary cholesterol: implications for Alzheimer's disease. NEUROSCIENCE LETTERS 368: 148-150

Anderton, BH, Dayanandan, R, Killick, R and Lovestone, S (2000) Does dysregulation of the Notch and wingless/Wnt pathways underlie the pathogenesis of Alzheimer's disease? MOLECULAR MEDICINE TODAY 6: 54-59

Annaert, W, Cupers, P, Saftig, P, De Strooper, B (2000) Presenilin function in APP processing. MOLECULAR BASIS OF DEMENTIA. ANNALS OF THE NEW YORK ACADEMY OF SCIENCES 920: 158-164

Araki, W, Yuasa, K, Takeda, S, Shirotani, K, Takahashi, K, Tabira, T (2000) Overexpression of presenilin-2 enhances apoptotic death of cultured cortical neurons. MOLECULAR BASIS OF DEMENTIA. ANNALS OF THE NEW YORK ACADEMY OF SCIENCES 920: 241-244

Araki, W, Yuasa, K, Takeda, S, Takeda, K, Shirotani, K, Takahashi, K, Tabira, T (2001) Pro-apoptotic effect of presenilin 2 (PS2) overexpression is associated with down-regulation of Bcl-2 in cultured neurons. JOURNAL OF NEUROCHEMISTRY 79: 1161-1168

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Arendash, GW, King, DL, Gordon, MN, Morgan, D, Hatcher, JM, Hope, CE and Diamond, DM (2001) Progressive, age-related behavioral impairments in transgenic mice carrying both mutant amyloid precursor protein and presenilin-1 transgenes. BRAIN RESEARCH 891: 42-53

Armogida M, Petit A, Vincent B, ScarzelloS, Alves da Costa C, Checler F (2001) Endogenous b-amyloid production in presenilin-deficient embryonic mouse fibroblasts. NATURE CELL BIOLOGY 3: 1030-1033

Athan, ES, Williamson, J, Ciappa, A, Santana, V, Romas, SN, Lee, JH, Rondon, H, Lantigua, RA, Medrano, M, Torres, M, Arawaka, S, Rogaeva, E, Song, YQ, Sato, C, Kawarai, T, Fafel, KC, Boss, MA, Seltzer, WK, Stern, Y, St George-Hyslop, P, Tycko, B, Mayeux, R (2001) A founder mutation in presenilin 1 causing early-onset Alzheimer disease in unrelated Caribbean Hispanic families. JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION 286: 2257-2263

Baki, L, Marambaud, P, Efthimiopoulos, S, Georgakopoulos, A, Wen, P, Cui, W, Shioi, J, Koo, E, Ozawa, M, Friedrich, VL and Robakis, NK (2001) Presenilin-1 binds cytoplasmic epithelial cadherin, inhibits cadherin/p120 association, and regulates stability and function of the cadherin/catenin adhesion complex. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 98: 2381-2386

Barrow, PA, Empson, RM, Gladwell, SJ, Anderson, CM, Killick, R, Yu, X, Jefferys, JGR and Duff, K (2000) Functional phonotype in transgenic mice expressing mutant human presenilin-1. NEUROBIOLOGY OF DISEASE 7: 119-126

Beher, D, Wrigley, JDJ, Nadin, A, Evin, G, Masters, CL, Harrison, T, Castro, JL, Shearman, MS (2001) Pharmacological knock-down of the presenilin 1 heterodimer by a novel gamma-secretase inhibitor - Implications for presenilin biology. JOURNAL OF BIOLOGICAL CHEMISTRY 276: 45394-45402

Beher, D, Wrigley, JDJ, Owens, AP, Shearman, MS (2002) Generation of C-terminally truncated amyloid-beta peptides is dependent on gamma-secretase activity. JOURNAL OF NEUROCHEMISTRY 82: 563-575

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Berezovska, O, Jack, C, Deng, A, Gastineau, N, Rebeck, GW and Hyman, BT (2001) Notch1 and amyloid precursor protein are competitive substrates for presenilin1-dependent gamma-secretase cleavage. JOURNAL OF BIOLOGICAL CHEMISTRY 276: 30018-30023

Bertram, L, Tanzi, RE (2001) Dancing in the dark? The status of late-onset Alzheimer's disease genetics. JOURNAL OF MOLECULAR NEUROSCIENCE 17: 127-136

Borchelt, DR, Lee, MK, Gonzales, V, Slunt, HH, Ratovitski, T, Jenkins, NA, Copeland, NG, Price, DL, Sisodia, SS (2002) Accumulation of proteolytic fragments of mutant presenilin 1 and accelerated amyloid deposition are co-regulated in transgenic mice. NEUROBIOLOGY OF AGING 23: 171-177

Borchelt, DR, Thinakaran, G, Eckman, CB, Lee, MK, Davenport, F, Ratovitsky, T, Prada, C-M, Kim, G, Seekins, S, Yager, D et al. (1996) Familial Alzheimer's Disease-Linked Presenilin 1 Variants Elevate A Beta 1-42/1-40 Ratio In Vitro and In Vivo. NEURON 17: 1005-1013

Bornemann, KD and Staufenbiel, M (2000) Transgenic mouse models of Alzheimer's disease. MOLECULAR AND CELLULAR GERONTOLOGY 908: 260-266

Boutajangout, A,  Leroy, K, Touchet, N, Authelet, M, Blanchard, V, Tremp, G, Pradier, L, Brion, JP (2002) Increased tau phosphorylation but absence of formation of neurofibrillary tangles in mice double transgenic for human tau and Alzheimer mutant (M146L) presenilin-1. NEUROSCIENCE LETTERS 318: 29-33

Burns, M, Gaynor, K, Olm, V, Mercken, M, LaFrancois, J, Wang, LL, Mathews, PM, Noble, W, Matsuoka, Y, Duff, K (2003) Presenilin redistribution associated with aberrant cholesterol transport enhances beta-amyloid production in vivo. JOURNAL OF NEUROSCIENCE 23: 5645-5649  

Caricasole, A, Copani, A, Caraci, F, Aronica, E, Rozemuller, AJ, Caruso, A, Storto, M, Gaviraghi, G, Terstappen, GC, Nicoletti, F (2004) Induction of Dickkopf-1, a negative modulator of the Wnt pathway, is associated with neuronal degeneration in Alzheimer's brain. JOURNAL OF NEUROSCIENCE 24: 6021-6027

Caricasole, A, Copani, A, Caruso, A, Caraci, F, Iacovelli, L, Sortino, MA, Terstappen, GC, Nicoletti, F (2003) The Wnt pathway, cell-cycle activation and beta-amyloid: novel therapeutic strategies in Alzheimer's disease?. TRENDS IN PHARMACOLOGICAL SCIENCES 24: 233-238

Cataldo, AM, Peterhoff, CM, Troncosco, JC, Gomez-Isla, T, Hyman, BT and Nixon, RA (2000) Endocytic pathway abnormalities precede amyloid beta deposition in sporadic Alzheimer's disease and Down syndrome - Differential effects of APOE genotype and presenilin mutations. American Journal Of Pathology 157: 277-286

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Chan, HYE and Bonini, NM (2000) Drosophila models of human neurodegenerative disease. CELL DEATH AND DIFFERENTIATION 7: 1075-1080

Chapman PF, Falinska AM, Knevett SG, Ramsay MF (2001) Genes, models and Alzheimer’s disease. Trends Genet 17: 254-261

Checler, F, da Costa, CA, Ancolio, K, Chevallier, N, Lopez-Perez, E and Marambaud, P (2000) Role of the proteasome in Alzheimer's disease. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE 1502: 133-138

Chen, FS, Yang, DS, Petanceska, S, Yang, A, Tandon, A, Yu, G, Rozmahel, R, Ghiso, J, Nishimura, M, Zhang, DM, Kawara, T, Levesque, G, Mills, J, Levesque, L, Song, YQ,  Rogaeva, E, Westaway, D, Mount, H, Gandy, S, St George-Hyslop, P and Fraser, PE (2000) Carboxyl-terminal fragments of Alzheimer beta-amyloid precursor protein accumulate in restricted and unpredicted intracellular compartments in presenilin 1-deficient cells. JOURNAL OF BIOLOGICAL CHEMISTRY 275: 36794-36802

Chen, Q, Yoshida, H, Schubert, D, Maher, P, Mallory, M, Masliah, E (2001) Presenilin binding protein is associated with neurofibrillary alterations in Alzheimer's disease and stimulates tau phosphorylation. AMERICAN JOURNAL OF PATHOLOGY 159: 1597-1602

Chishti, MA, Yang, DS, Janus, C, Phinney, AL, Horne, P, Pearson, J, Strome, R, Zuker, N, Loukides, J, French, J, Turner, S, Lozza, G, Grilli, M, Kunicki, S,, Morissette, C, Paquette, J, Gervais, F, Bergeron, C, Fraser, PE, Carlson, GA, St George-Hyslop, P and Westaway, D (2001) Early-onset amyloid deposition and cognitive deficits in transgenic mice expressing a double mutant form of amyloid precursor protein 695. JOURNAL OF BIOLOGICAL CHEMISTRY 276: 21562-21570

Chung, HM, Struhl, G (2001) Nicastrin is required for Presenilin-mediated transmembrane cleavage in Drosophila. NATURE CELL BIOLOGY 3: 1129-1132

Chyung, JH, Selkoe, DJ (2003) Inhibition of receptor-mediated endocytosis demonstrates generation of amyloid beta-protein at the cell surface. JOURNAL OF BIOLOGICAL CHEMISTRY 278: 51035-51043

Coleman, P, Kurlan, R, Crook, R, Werner, J, Hardy, J (2004) New presenilin Alzheimer's disease case confirms the helical alignment of pathogenic mutations in transmembrane domain 5. NEUROSCIENCE LETTERS 364: 139-140

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Costa, RM, Honjo, T, Silva, AJ (2003) Learning and memory deficits in Notch mutant mice. CURRENT BIOLOGY 13: 1348-1354

Counts, SE, Lah, JJ and Levey, AI (2001) The regulation of presenilin-1 by nerve growth factor. JOURNAL OF NEUROCHEMISTRY 76: 679-689

Crystal, AS, Morais, VA, Pierson, TC, Pijak, DS, Carlin, D, Lee, VMY, Doms, RW (2003) Membrane topology of gamma-secretase component PEN-2. JOURNAL OF BIOLOGICAL CHEMISTRY 278: 20117-20123

Czech C; Tremp G; Pradier L. Presenilins and Alzheimer's disease: biological functions and pathogenic mechanisms. Prog Neurobiol, 2000 Mar, 60:4, 363-84

da Costa, CA, Mattson, MP, Ancolio, K, Checler, F (2003) The C-terminal fragment of presenilin 2 triggers p53-mediated staurosporine-induced apoptosis, a function independent of the presenilinase-derived N-terminal counterpart. JOURNAL OF BIOLOGICAL CHEMISTRY 278: 12064-12069

da Costa, CA, Paitel, E, Mattson, MP, Amson, R, Telerman, A, Ancolio, K, Checler, F (2002) Wild-type and mutated presenilins 2 trigger p53-dependent apoptosis and down-regulate presenilin 1 expression in HEK293 human cells and in murine neurons. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 99: 4043-4048

Daw, EW, Bird, TD, Nemens, EJ, Nochlin, D, Schellenberg, GD and Wijsman, EM (2000) ApoE and other loci affect age of Alzheimer's disease onset in families with PS2 mutation. AMERICAN JOURNAL OF HUMAN GENETICS 67: 192

De Ferrari, GV, Chacon, MA, Barria, MI, Garrido, JL, Godoy, JA, Olivares, G, Reyes, AE, Alvarez, A, Bronfman, M, Inestrosa, NC (2003) Activation of Wnt signaling and behavioral impairments rescues neurodegeneration induced by beta-amyloid fibrils. MOLECULAR PSYCHIATRY 8: 195-208

De Strooper, B (2003) Aph-1, Pen-2, and nicastrin with presenilin generate an active gamma-secretase complex. NEURON 38: 9-12

De Strooper, B, Annaert, W (2001) Presenilins and the intramembrane proteolysis of proteins: facts and fiction. NATURE CELL BIOLOGY 3: E221-E225

Devi, G, Fotiou, A, Jyrinji, D, Tycko, B, DeArmand, S, Rogaeva, E, Song, YQ, Medieros, H, Liang, Y, Orlacchio, A, Williamson, J, St George-Hyslop, P and Mayeux, R (2000) Novel presenilin 1 mutations associated with early onset of dementia in a family with both early-onset and late-onset Alzheimer disease. ARCHIVES OF NEUROLOGY 57: 1454-1457

Dewachter, I, Reverse, D, Caluwaerts, N, Ris, L, Kuiperi, C, Van den Haute, C, Spittaels, K, Umans, L, Serneels, L, Thiry, E, Moechars, D, Mercken, M, Godaux, E, Van Leuven, F (2002) Neuronal deficiency of presenilin 1 inhibits amyloid plaque formation and corrects hippocampal long-term potentiation but not a cognitive defect of amyloid precursor protein [V717I] transgenic mice. JOURNAL OF NEUROSCIENCE 22: 3445-3453

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Dewachter, I, Van Dorpe, J, Smeijers, L, Gilis, M, Kuiperi, C, Laenen, I, Caluwaerts, N, Moechars, D, Checler, DR, Vanderstichele, H and Van Leuven, F (2000) Aging increased amyloid peptide and caused amyloid plaques in brain of old APP/V717I transgenic mice by a different mechanism than mutant presenilin1. JOURNAL OF NEUROSCIENCE 20: 6452-6458

Dewachter, I, van Dorpe, J, Spittaels, K, Tesseur, I, Van Den Haute, C, Moechars, D and Van Leuven, F (2000) Modeling Alzheimer's disease in transgenic mice: effect of age and of Presenilin1 on amyloid biochemistry and pathology in APP/London mice. EXPERIMENTAL GERONTOLOGY 35: 831-841

Dineley, KT, Xia, XF, Bui, D, Sweatt, JD, Zheng, H (2002) Accelerated plaque accumulation, associative learning deficits, and up-regulation of alpha 7 nicotinic receptor protein in transgenic mice co-expressing mutant human presenilin 1 and amyloid precursor proteins. JOURNAL OF BIOLOGICAL CHEMISTRY 277: 22768-22780

Doan, A, Thinakaran, G, Borchelt, DR, Slunt, HH, Ratovitsky, T, Podlisny, M, Selkoe, DJ, Seeger, M, Gandy, SE, Price DL, Sisodia SS (1996) Protein Topology of Presenilin 1. NEURON 17: 1023-1030

Doerfler, P, Shearman, MS and Perlmutter, RM (2001) Presenilin-dependent gamma-secretase activity modulates thymocyte development. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 98: 9312-9317

Dowjat, WK, Wisniewski, H and Wisniewski, T (2001) Alzheimer's disease presenilin-1 expression modulates the assembly of neurofilaments. NEUROSCIENCE 103: 1-8

Eckert, A, Schindowski, K, Leutner, S, Luckhaus, C, Touchet, N, Czech, C, Muller, WE (2001) Alzheimer's disease-like alterations in peripheral cells from presenilin-1 transgenic mice. NEUROBIOLOGY OF DISEASE 8: 331-342

Edbauer, D, Winkler, E, Regula, JT, Pesold, B, Steiner, H, Haass, C (2003) Reconstitution of gamma-secretase activity. NATURE CELL BIOLOGY 5: 486-488

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Ermak, G, Davies, KJA (2002) Gene expression in Alzheimer's disease. DRUGS OF TODAY 38: 509-516

Esler, WP, Kimberly, WT, Ostaszewski, BL, Ye, WJ, Diehl, TS, Selkoe, DJ, Wolfe, MS (2002) Activity-dependent isolation of the presenilin-gamma-secretase complex reveals nicastrin and a gamma substrate. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 99: 2720-2725

Evin, G, Smith, MJ, Tziotis, A, McLean, C, Canterford, L, Sharples, RA, Cappai, R, Weidemann, A, Beyreuther, K, Cotton, RGH, Masters, CL, Culvenor, JG (2002) Alternative transcripts of presenilin-I associated with frontotemporal dementia. NEUROREPORT 13: 719-723

Farmery, MR, Tjernberg, LO, Pursglove, SE, Bergman, A, Winblad, B, Naslund, J (2003) Partial purification and characterization of gamma-secretase from post-mortem human brain. JOURNAL OF BIOLOGICAL CHEMISTRY 278: 24277-24284

Figueroa, DJ, Morris, JA, Ma, L, Kandpal, G, Chen, E, Li, YM, Austin, CP (2002) Presenilin-dependent gamma-secretase activity modulates neurite outgrowth. NEUROBIOLOGY OF DISEASE 9: 49-60

Flood, DG, Reaume, AG, Dorfman, KS, Lin, YG, Lang, DM, Trusko, SP, Savage, MJ, Annaert, WG, De Strooper, B, Siman, R, Scott, RW (2002) FAD mutant PS-1 gene-targeted mice: Increased A beta 42 and A beta deposition without APP overproduction. NEUROBIOLOGY OF AGING 23: 335-348

Fraser, PE, Yang, DS, Yu, G, Levesque, L, Nishimura, M, Arawaka, S, Serpell, LC, Rogaeva, E and St George-Hyslop, P (2000) Presenilin structure, function and role in Alzheimer disease. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR BASIS OF DISEASE 1502: 1-15

Fortini, ME (2001) Notch and Presenilin: a proteolytic mechanism emerges. CURRENT OPINION IN CELL BIOLOGY 13: 627-634

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Furuya, H, Yasuda, M, Terasawa, K, Tanaka, K, Murai, H, Kira, J, Ohyagi, Y (2003) A novel mutation (L250V) in the presenilin 1 gene in a Japanese familial Alzheimer's disease with myoclonus and generalized convulsion. JOURNAL OF THE NEUROLOGICAL SCIENCES: 209: 75-77

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Gamliel, A, Teicher, C, Michaelson, DM, Pradier, L, Hartmann, T, Beyreuther, K, Stein, R (2002) Increased expression of presenilin 2 inhibits protein synthesis. MOLECULAR AND CELLULAR NEUROSCIENCE 19: 111-124

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Gao, YH, Pimplikar, SW (2001) The gamma-secretase-cleaved C-terminal fragment of amyloid precursor protein mediates signaling to the nucleus. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 98: 14979-14984

Geling, A, Steiner, H, Willem, M, Bally-Cuif, L, Haass, C (2002) A gamma-secretase inhibitor blocks Notch signaling in vivo and causes a severe neurogenic phenotype in zebrafish. EMBO REPORTS 3: 688-694

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Haass, C, Steiner, H (2002) Alzheimer disease gamma-secretase: a complex story of GxGD-type presenilin proteases . TRENDS IN CELL BIOLOGY 12: 556-562

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Hartmann, D, Tournoy, J, Saftig, P, Annaert, W, De Strooper, B (2001) Implication of APP secretases in notch signaling. JOURNAL OF MOLECULAR NEUROSCIENCE 17: 171-181

Heckmann, JM, Low, WC, de Villiers, C, Rutherfoord, S, Vorster, A, Rao, H, Morris, CM, Ramesar, RS, Kalaria, RN (2004) Novel presenilin 1 mutation with profound neurofibrillary pathology in an indigenous Southern African family with early-onset Alzheimer's disease. BRAIN 127: 133-142

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Herreman, A, Hartmann, D, Annaert, W, Saftig, P, Craessaerts, K, Serneels, L, Umans, L, Schrijvers, V, Checler, F, Vanderstichele, H, Baekelandt, V, Dressel, R, Cupers, P, Huylebroeck, D, Zwijsen, A, Van Leuven, F and De Strooper, B (1999) Presenilin 2 deficiency causes a mild pulmonary phenotype and no changes in amyloid precursor protein processing but enhances the embryonic lethal phenotype of presenilin 1 deficiency. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 96: 11872-11877

Herreman, A, Van Gassen, G, Bentahir, M, Nyabi, O, Craessaerts, K, Mueller, U, Annaert, W, De Strooper, B (2003) gamma-Secretase activity requires the presenilin-dependent trafficking of nicastrin through the Golgi apparatus but not its complex glycosylation. JOURNAL OF CELL SCIENCE 116: 1127-1136

Higuchi, S, Yoshino, A, Matsui, T, Matsushita, S, Satoh, A, Iimura, T, Ishikawa, M, Arai, H and Shirakura, K (2000) A novel PS1 mutation (W165G) in a Japanese family with early-onset Alzheimer's disease. ALZHEIMERS REPORTS 3: 227-231

Houlden, H, Baker, M, McGowan, E, Lewis, P, Hutton, M, Crook, R, Wood, NW, Kumar-Singh, S, Geddes, J, Swash, M, Scaravilli, F, Holton, JL, Lashley, T, Tomita, T, Hashimoto, T, Verkkoniemi, A, Kalimo, H, Somer, M, Paetau, A, Martin, JJ, Van Broeckhoven, C, Golde, T, Hardy, J, Haltia, M and Revesz, T (2000) Variant Alzheimer's disease with spastic paraparesis and cotton wool plaques is caused by PS-1 mutations that lead to exceptionally high amyloid-beta concentrations. ANNALS OF NEUROLOGY 48: 806-808

Houlden, H, Crook, R, Dolan, RJ, McLaughlin, J, Revesz, T, Hardy, J (2001) A novel presenilin mutation (M233V) causing very early onset Alzheimer's disease with Lewy bodies. NEUROSCIENCE LETTERS 313: 93-95

Ikeuchi, T, Sisodia, SS (2003) The notch ligands, Delta1 and Jagged2, are substrates for presenilin-dependent "gamma-secretase" cleavage. JOURNAL OF BIOLOGICAL CHEMISTRY 278: 7751-7754

Jack, C, Berezovska, O, Wolfe, MS and Hyman, BT (2001) Effect of PS1 deficiency and an APP gamma-secretase inhibitor on Notch1 signaling in primary mammalian neurons. MOLECULAR BRAIN RESEARCH 87: 166-174

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