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1.

001-es BibID:BIBFORM029484
Első szerző:Al-Sarraj, Safa
Cím:p62 positive, TDP-43 negative, neuronal cytoplasmic and intranuclear inclusions in the cerebellum and hippocampus define the pathology of C9orf72-linked FTLD and MND/ALS / Safa Al-Sarraj, Andrew King, Claire Troakes, Bradley Smith, Satomi Maekawa, Istvan Bodi, Boris Rogelj, Ammar Al-Chalabi, Tibor Hortobágyi, Christopher E. Shaw
Dátum:2011
ISSN:0001-6322
Megjegyzések:Neuronal cytoplasmic inclusions (NCIs) containing phosphorylated TDP-43 (p-TDP-43) are the pathological hallmarks of motor neuron disease/amyotrophic lateral sclerosis (MND/ALS) and FTLD-TDP. The vast majority of NCIs in the brain and spinal cord also label for ubiquitin and p62, however, we have previously reported a subset of TDP-43 proteinopathy patients who have unusual and abundant p62 positive, TDP-43 negative inclusions in the cerebellum and hippocampus. Here we sought to determine whether these cases carry the hexanucleotide repeat expansion in C9orf72. Repeat primer PCR was performed in 36 MND/ALS, FTLD-MND/ALS and FTLD-TDP cases and four controls. Fourteen individuals with the repeat expansion were detected. In all the 14 expansion mutation cases there were abundant globular and star-shaped p62 positive NCIs in the pyramidal cell layer of the hippocampus, the vast majority of which were p-TDP-43 negative. p62 positive NCIs were also abundant in the cerebellar granular and molecular layers in all cases and in Purkinje cells in 12/14 cases but they were only positive for p-TDP-43 in the granular layer of one case. Abundant p62 positive, p-TDP-43 negative neuronal intranuclear inclusions (NIIs) were seen in 12/14 cases in the pyramidal cell layer of the hippocampus and in 6/14 cases in the cerebellar granular layer. This unusual combination of inclusions appears pathognomonic for C9orf72 repeat expansion positive MND/ALS and FTLD-TDP which we believe form a pathologically distinct subset of TDP-43 proteinopathies. Our results suggest that proteins other than TDP-43 are binding p62 and aggregating in response to the mutation which may play a mechanistic role in neurodegeneration.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
külföldön készült közlemény
Megjelenés:Acta Neuropathologica. - 122 : 6 (2011), p. 691-702. -
További szerzők:King, Andrew Troakes, Claire Smith, Bradley Maekawa, Satomi Bódi István (1967-) (neuropatológus) Rogelj, Boris Al-Chalabi, Ammar Shaw, Christopher E. Hortobágyi Tibor (1965-) (patológus)
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2.

001-es BibID:BIBFORM019976
Első szerző:Hortobágyi Tibor (patológus)
Cím:Optineurin inclusions occur in a minority of TDP-43 positive ALS and FTLD-TDP cases and are rarely observed in other neurodegenerative disorders / Tibor Hortobágyi, Claire Troakes, Agnes L. Nishimura, Caroline Vance, John C. van Swieten, Harro Seelaar, Andrew King, Safa Al-Sarraj, Boris Rogelj, Christopher E. Shaw
Dátum:2011
ISSN:0001-6322
Megjegyzések:Optineurin (OPTN) is a multifunctional protein involved in vesicular trafficking, signal transduction and gene expression. OPTN mutations were described in eight Japanese patients with familial and sporadic amyotrophic lateral sclerosis (FALS, SALS). OPTN-positive inclusions co-localising with TDP-43 were described in SALS and in FALS with SOD-1 mutations, potentially linking two pathologically distinct pathways of motor neuron degeneration. We have explored the abundance of OPTN inclusions using a range of antibodies in postmortem tissues from 138 cases and controls including sporadic and familial ALS, frontotemporal lobar degeneration (FTLD) and a wide range of neurodegenerative proteinopathies. OPTN-positive inclusions were uncommon and detected in only 11/32 (34%) of TDP-43-positive SALS spinal cord and 5/15 (33%) of FTLD-TDP. Western blot of lysates from FTLD-TDP frontal cortex and TDP-43-positive SALS spinal cord revealed decreased levels of OPTN protein compared to controls (p < 0.05), however, this correlated with decreased neuronal numbers in the brain. Large OPTN inclusions were not detected in FALS with SOD-1 and FUS mutation, respectively, or in FTLD-FUS cases. OPTN-positive inclusions were identified in a few Alzheimer's disease (AD) cases but did not co-localise with tau and TDP-43. Occasional striatal neurons contained granular cytoplasmic OPTN immunopositivity in Huntington's disease (HD) but were absent in spinocerebellar ataxia type 3. No OPTN inclusions were detected in FTLD-tau and α-synucleinopathy. We conclude that OPTN inclusions are relatively rare and largely restricted to a minority of TDP-43 positive ALS and FTLD-TDP cases. Our results do not support the proposition that OPTN inclusions play a central role in the pathogenesis of ALS, FTLD or any other neurodegenerative disorder.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Acta Neuropathologica. - 121 : 4 (2011), p. 519-527. -
További szerzők:Troakes, Claire Nishimura, Agnes Lumi Vance, Caroline Swieten, John C. van Seelaar, Harro King, Andrew Al-Sarraj, Safa Rogelj, Boris Shaw, Christopher E.
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3.

001-es BibID:BIBFORM082383
035-os BibID:(cikkazonosító)551
Első szerző:Kattuah, Wejdan
Cím:Heterogeneous Nuclear Ribonucleoprotein E2 (hnRNP E2) Is a Component of TDP-43 Aggregates Specifically in the A and C Pathological Subtypes of Frontotemporal Lobar Degeneration / Wejdan Kattuah, Boris Rogelj, Andrew King, Christopher E. Shaw, Tibor Hortobágyi, Claire Troakes
Dátum:2019
ISSN:1662-453X
Megjegyzések:TAR DNA-binding protein 43 (TDP-43) is the major component of the ubiquitin-positive protein aggregates seen in the majority of frontotemporal lobar degeneration and amyotrophic lateral sclerosis cases. TDP-43 belongs to the heterogeneous nuclear ribonucleoprotein (hnRNP) family that is involved in the regulation of RNA transcription, splicing, transport and translation. There are a great many hnRNPs, which often have overlapping functions and act cooperatively in RNA processing. Here we demonstrate that another hnRNP family member, hnRNP E2, shows a striking accumulation within dystrophic neurites and cytoplasmic inclusions in the frontal cortex and hippocampus of a subset of FTLD-TDP cases belonging to pathological subtypes A and C, where hnRNP E2 was found to co-localize with 87% of TDP-43 immunopositive inclusions. hnRNP E2-positive inclusions were not seen in FTLD-TDP cases with the C9orf72 expansion or in any other neurodegenerative disorders examined. This interaction with TDP-43 in specific FTLD subtypes suggests different underlying neurodegenerative pathways.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Frontiers in Neuroscience. - 13 (2019), p. 1-11. -
További szerzők:Rogelj, Boris King, Andrew Shaw, Christopher E. Hortobágyi Tibor (1965-) (patológus) Troakes, Claire
Pályázati támogatás:2017-1.2.1-NKP-2017-00002
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4.

001-es BibID:BIBFORM042979
Első szerző:Mitchell, Jacqueline C.
Cím:Overexpression of human wild-type FUS causes progressive motor neuron degeneration in an age- and dose-dependent fashion / Jacqueline C. Mitchell, Philip McGoldrick, Caroline Vance, Tibor Hortobagyi, Jemeen Sreedharan, Boris Rogelj, Elizabeth L. Tudor, Bradley N. Smith, Christian Klasen, Christopher C. J. Miller, Jonathan D. Cooper, Linda Greensmith, Christopher E. Shaw
Dátum:2013
ISSN:0001-6322
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Acta Neuropathologica. - 125 : 2 (2013), p. 273-288. -
További szerzők:McGoldrick, Philip Vance, Caroline Hortobágyi Tibor (1965-) (patológus) Sreedharan, Jemeen Rogelj, Boris Tudor, Elizabeth L. Smith, Bradley Klasen, Christian Miller, Christopher Charles John Cooper, Jonathan D. Greensmith, Linda Shaw, Christopher E.
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5.

001-es BibID:BIBFORM016356
Első szerző:Nishimura, Agnes Lumi
Cím:Nuclear import impairment causes cytoplasmic trans-activation response DNA-binding protein accumulation and is associated with frontotemporal lobar degeneration / Agnes L. Nishimura, Vera Zupunski, Claire Troakes, Claudia Kathe, Pietro Fratta, Michael Howell, Jean-Marc Gallo, Tibor Hortobágyi, Christopher E. Shaw, Boris Rogelj
Dátum:2010
ISSN:0006-8950
Megjegyzések:Trans-activation response DNA-binding protein (TDP-43) accumulation is the major component of ubiquitinated protein inclusions found in patients with amyotrophic lateral sclerosis, and frontotemporal lobar degeneration with TDP-43 positive ubiquitinated inclusions, recently relabelled the 'TDP-43 proteinopathies'. TDP-43 is predominantly located in the nucleus, however, in disease it mislocalizes to the cytoplasm where it aggregates to form hallmark pathological inclusions. The identification of TDP-43 mutations in familial and sporadic amyotrophic lateral sclerosis cases confirms its pathogenic role; but it is wild-type TDP-43 that is deposited in the vast majority of TDP-43 proteinopathies, implicating other unknown factors for its mislocalization and aggregation. One such mechanism may be defective nuclear import of TDP-43 protein, as a disruption of its nuclear localization signal leads to mislocalization and aggregation of TDP-43 in the cytoplasm. In order to explore the factors that regulate the nuclear import of TDP-43, we used a small interfering RNA library to silence 82 proteins involved in nuclear transport and found that knockdowns of karyopherin-beta1 and cellular apoptosis susceptibility protein resulted in marked cytoplasmic accumulation of TDP-43. In glutathione S-transferase pull-down assays, TDP-43 bound to karyopherin-alphas, thereby confirming the classical nuclear import pathway for the import of TDP-43. Analysis of the expression of chosen nuclear import factors in post-mortem brain samples from patients with TDP-43 positive frontotemporal lobar degeneration, and spinal cord samples from patients with amyotrophic lateral sclerosis, revealed a considerable reduction in expression of cellular apoptosis susceptibility protein in frontotemporal lobar degeneration. We propose that cellular apoptosis susceptibility protein associated defective nuclear transport may play a mechanistic role in the pathogenesis of the TDP-43 positive frontotemporal lobar degeneration.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Brain. - 133 : 6 (2010), p. 1763-1771. -
További szerzők:Župunski, Vera Troakes, Claire Kathe, Claudia Fratta, Pietro Howell, Michael Gallo, Jean-Marc Hortobágyi Tibor (1965-) (patológus) Shaw, Christopher E. Rogelj, Boris
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6.

001-es BibID:BIBFORM095314
035-os BibID:(WoS)000733375400006 (Scopus)85113789602
Első szerző:Pasha, Terouz
Cím:Karyopherin abnormalities in neurodegenerative proteinopathies / Terouz Pasha, Anna Zatorska, Daulet Sharipov, Boris Rogelj, Tibor Hortobágyi, Frank Hirth
Dátum:2021
ISSN:0006-8950
Megjegyzések:Neurodegenerative proteinopathies are characterised by progressive cell loss that is preceded by the mislocalisation and aberrant accumulation of proteins prone to aggregation. Despite their different physiological functions, disease-related proteins like tau, alpha-synuclein, Tar DNA binding protein-43, Fused in sarcoma and mutant Huntingtin, all share low complexity regions that can mediate their liquid-liquid phase transitions. The proteins' phase transitions can range from native monomers to soluble oligomers, liquid droplets and further to irreversible, often-mislocalised aggregates that characterise the stages and severity of neurodegenerative diseases. Recent advances into the underlying pathogenic mechanisms have associated mislocalisation and aberrant accumulation of disease-related proteins with defective nucleocytoplasmic transport and its mediators called karyopherins. These studies identify karyopherin abnormalities in amyotrophic lateral sclerosis, frontotemporal dementia, Alzheimer's disease, and synucleinopathies including Parkinson's disease and dementia with Lewy bodies, that range from altered expression levels to the subcellular mislocalisation and aggregation of karyopherin alpha and beta proteins. The reported findings reveal that in addition to their classical function in nuclear import and export, karyopherins can also act as chaperones by shielding aggregation-prone proteins against misfolding, accumulation and irreversible phase-transition into insoluble aggregates. Karyopherin abnormalities can, therefore, be both the cause and consequence of protein mislocalisation and aggregate formation in degenerative proteinopathies. The resulting vicious feedback cycle of karyopherin pathology and proteinopathy identifies karyopherin abnormalities as a common denominator of onset and progression of neurodegenerative disease. Pharmacological targeting of karyopherins, already in clinical trials as therapeutic intervention targeting cancers such as glioblastoma and viral infections like COVID-19, may therefore represent a promising new avenue for disease-modifying treatments in neurodegenerative proteinopathies.
Tárgyszavak:Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Brain. - 144 : 10 (2021), p. 2915-2932. -
További szerzők:Zatorska, Anna Sharipov, Daulet Rogelj, Boris Hortobágyi Tibor (1965-) (patológus) Hirth, Frank
Pályázati támogatás:Nemzeti Agykutatási Program 2017-1.2.1-NKP-2017-00002
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NKFIH-SNN-132999
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7.

001-es BibID:BIBFORM051632
035-os BibID:PMID: 22692064
Első szerző:Smith, Bradley
Cím:The C9ORF72 expansion mutation is a common cause of ALS+/-FTD in Europe and has a single founder / Bradley N. Smith, Stephen Newhouse, Aleksey Shatunov, Caroline Vance, Simon Topp, Lauren Johnson, Jack Miller, Younbok Lee, Claire Troakes, Kirsten M. Scott, Ashley Jones, Ian Gray, Jamie Wright, Tibor Hortobágyi, Safa Al-Sarraj, Boris Rogelj, John Powell, Michelle Lupton, Simon Lovestone, Peter C. Sapp, Markus Weber, Peter J. Nestor, Helenius J. Schelhaas, Anneloor ALM ten Asbroek, Vincenzo Silani, Cinzia Gellera, Franco Taroni, Nicola Ticozzi, Leonard Van den Berg, Jan Veldink, Phillip Van Damme, Wim Robberecht, Pamela J. Shaw, Janine Kirby, Hardev Pall, Karen E. Morrison, Alex Morris, Jacqueline de Belleroche, J. M. B. Vianney de Jong, Frank Baas, Peter M. Andersen, John Landers, Robert H. Brown Jr., Michael E. Weale, Ammar Al-Chalabi, Christopher E. Shaw
Dátum:2013
ISSN:1018-4813
Megjegyzések:A massive hexanucleotide repeat expansion mutation (HREM) in C9ORF72 has recently been linked to amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Here we describe the frequency, origin and stability of this mutation in ALS+/-FTD from five European cohorts (total n=1347). Single-nucleotide polymorphisms defining the risk haplotype in linked kindreds were genotyped in cases (n=434) and controls (n=856). Haplotypes were analysed using PLINK and aged using DMLE+. In a London clinic cohort, the HREM was the most common mutation in familial ALS+/-FTD: C9ORF72 29/112 (26%), SOD1 27/112 (24%), TARDBP 1/112 (1%) and FUS 4/112 (4%) and detected in 13/216 (6%) of unselected sporadic ALS cases but was rare in controls (3/856, 0.3%). HREM prevalence was high for familial ALS+/-FTD throughout Europe: Belgium 19/22 (86%), Sweden 30/41 (73%), the Netherlands 10/27 (37%) and Italy 4/20 (20%). The HREM did not affect the age at onset or survival of ALS patients. Haplotype analysis identified a common founder in all 137 HREM carriers that arose around 6300 years ago. The haplotype from which the HREM arose is intrinsically unstable with an increased number of repeats (average 8, compared with 2 for controls, P<10(-8)). We conclude that the HREM has a single founder and is the most common mutation in familial and sporadic ALS in Europe.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:European Journal of Human Genetics. - 21 : 1 (2013), p. 102-108. -
További szerzők:Newhouse, Stephen Shatunov, Aleksey Vance, Caroline Topp, Simon Johnson, Lauren Miller, Jack Lee, Younbok Troakes, Claire Scott, Kirsten M. Jones, Ashley Gray, Ian Wright, Jamie Hortobágyi Tibor (1965-) (patológus) Al-Sarraj, Safa Rogelj, Boris Powell, John Lupton, Michelle Lovestone, Simon Sapp, Peter C. Weber, Markus Nestor, Peter J. Schelhaas, Helenius J. Asbroek, Anneloor ALM ten Silani, Vincenzo Gellera, Cinzia Taroni, Franco Ticozzi, Nicola Van den Berg, Leonard H. Veldink, Jan H. Van Damme, Phillip Robberecht, Wim Shaw, Pamela J. Kirby, Janine Pall, Hardev Morrison, Karen E. Morris, Alex de Belleroche, Jacqueline Vianney de Jong, J. M. B. Baas, Frank Andersen, Peter M. Landers, John Brown, Robert H. (Jr.) Weale, Michael E. Al-Chalabi, Ammar Shaw, Christopher E.
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8.

001-es BibID:BIBFORM076126
035-os BibID:(WoS)000446548400016 (Scopus)85054395402
Első szerző:Solomon, Daniel A.
Cím:A feedback loop between dipeptide-repeat protein, TDP-43 and karyopherin-[alfa] mediates C9orf72-related neurodegeneration / Solomon Daniel A., Stepto Alan., Au Wing Hei, Adachi Yoshitsugu, Diaper Danielle C., Hall Rachel, Rekhi Anjeet, Boudi Adel, Tziortzouda Paraskevi, Lee Youn-Bok, Smith Bradley, Bridi Jessika C., Spinelli Greta, Dearlove Jonah, Humphrey Dickon M., Gallo Jean-Marc, Troakes Claire, Fanto Manolis, Soller Matthias, Rogelj Boris, Parsons Richard B., Shaw Christopher E., Hortobágyi Tibor, Hirth Frank
Dátum:2018
ISSN:0006-8950
Megjegyzések:Accumulation and aggregation of TDP-43 is a major pathological hallmark of amyotrophic lateral sclerosis and frontotemporal dementia. TDP-43 inclusions also characterize patients with GGGGCC (G4C2) hexanucleotide repeat expansion in C9orf72 that causes the most common genetic form of amyotrophic lateral sclerosis and frontotemporal dementia (C9ALS/FTD). Functional studies in cell and animal models have identified pathogenic mechanisms including repeat-induced RNA toxicity and accumulation of G4C2-derived dipeptide-repeat proteins. The role of TDP-43 dysfunction in C9ALS/FTD, however, remains elusive. We found G4C2-derived dipeptide-repeat protein but not G4C2-RNA accumulation caused TDP-43 proteinopathy that triggered onset and progression of disease in Drosophila models of C9ALS/FTD. Timing and extent of TDP-43 dysfunction was dependent on levels and identity of dipeptide-repeat proteins produced, with poly-GR causing early and poly-GA/poly-GP causing late onset of disease. Accumulating cytosolic, but not insoluble aggregated TDP-43 caused karyopherin-?2/4 (KPNA2/4) pathology, increased levels of dipeptide-repeat proteins and enhanced G4C2-related toxicity. Comparable KPNA4 pathology was observed in both sporadic frontotemporal dementia and C9ALS/FTD patient brains characterized by its nuclear depletion and cytosolic accumulation, irrespective of TDP-43 or dipeptide-repeat protein aggregates. These findings identify a vicious feedback cycle for dipeptide-repeat protein-mediated TDP-43 and subsequent KPNA pathology, which becomes self-sufficient of the initiating trigger and causes C9-related neurodegeneration.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
folyóiratcikk
Megjelenés:Brain. - 141 : 10 (2018), p. 2908-2924. -
További szerzők:Stepto, Alan Au, Wing Hei Adachi, Yoshitsugu Diaper, Danielle C. Hall, Rachel Rekhi, Anjeet Boudi, Adel Tziortzouda, Paraskevi Lee, Younbok Smith, Bradley Bridi, Jessika C. Spinelli, Greta Dearlove, Jonah Humphrey, Dickon M. Gallo, Jean-Marc Troakes, Claire Fanto, Manolis Soller, Matthias Rogelj, Boris Parsons, Richard B. Shaw, Christopher E. Hortobágyi Tibor (1965-) (patológus) Hirth, Frank
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9.

001-es BibID:BIBFORM037635
Első szerző:Tollervey, James R.
Cím:Characterizing the RNA targets and position-dependent splicing regulation by TDP-43 / Tollervey James R., Curk Tomaz, Rogelj Boris, Briese Michael, Cereda Matteo, Kayikci Melis, König Julian, Hortobágyi Tibor, Nishimura Agnes L., Zupunski Vera, Patani Rickie, Chandran Siddharthan, Rot Gregor, Zupan Blaz, Shaw Christopher E., Ule Jernej
Dátum:2011
ISSN:1097-6256
Megjegyzések:TDP-43 is a predominantly nuclear RNA-binding protein that forms inclusion bodies in frontotemporal lobar degeneration (FTLD) and amyotrophic lateral sclerosis (ALS). The mRNA targets of TDP-43 in the human brain and its role in RNA processing are largely unknown. Using individual nucleotide-resolution ultraviolet cross-linking and immunoprecipitation (iCLIP), we found that TDP-43 preferentially bound long clusters of UG-rich sequences in vivo. Analysis of RNA binding by TDP-43 in brains from subjects with FTLD revealed that the greatest increases in binding were to the MALAT1 and NEAT1 noncoding RNAs. We also found that binding of TDP-43 to pre-mRNAs influenced alternative splicing in a similar position-dependent manner to Nova proteins. In addition, we identified unusually long clusters of TDP-43 binding at deep intronic positions downstream of silenced exons. A substantial proportion of alternative mRNA isoforms regulated by TDP-43 encode proteins that regulate neuronal development or have been implicated in neurological diseases, highlighting the importance of TDP-43 for the regulation of splicing in the brain.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Nature Neuroscience. - 14 : 4 (2011), p. 452-458. -
További szerzők:Curk, Tomaž Rogelj, Boris Briese, Michael Cereda, Matteo Kayikci, Melis König, Julian Hortobágyi Tibor (1965-) (patológus) Nishimura, Agnes Lumi Župunski, Vera Patani, Rickie Chandran, Siddharthan Rot, Gregor Zupan, Blaž Shaw, Christopher E. Ule, Jernej
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10.

001-es BibID:BIBFORM020290
Első szerző:Tollervey, James R.
Cím:Analysis of alternative splicing associated with aging and neurodegeneration in the human brain / James R. Tollervey, Zhen Wang, Tibor Hortobágyi, Joshua T. Witten, Kathi Zarnack, Melis Kayikci, Tyson A. Clark, Anthony C. Schweitzer, Gregor Rot, Tomaž Curk, Blaž Zupan, Boris Rogelj, Christopher E. Shaw, Jernej Ule
Dátum:2011
ISSN:1088-9051
Megjegyzések:Age is the most important risk factor for neurodegeneration; however, the effects of aging and neurodegeneration on gene expression in the human brain have most often been studied separately. Here, we analyzed changes in transcript levels and alternative splicing in the temporal cortex of individuals of different ages who were cognitively normal, affected by frontotemporal lobar degeneration (FTLD), or affected by Alzheimer's disease (AD). We identified age-related splicing changes in cognitively normal individuals and found that these were present also in 95% of individuals with FTLD or AD, independent of their age. These changes were consistent with increased polypyrimidine tract binding protein (PTB)-dependent splicing activity. We also identified disease-specific splicing changes that were present in individuals with FTLD or AD, but not in cognitively normal individuals. These changes were consistent with the decreased neuro-oncological ventral antigen (NOVA)-dependent splicing regulation, and the decreased nuclear abundance of NOVA proteins. As expected, a dramatic down-regulation of neuronal genes was associated with disease, whereas a modest down-regulation of glial and neuronal genes was associated with aging. Whereas our data indicated that the age-related splicing changes are regulated independently of transcript-level changes, these two regulatory mechanisms affected expression of genes with similar functions, including metabolism and DNA repair. In conclusion, the alternative splicing changes identified in this study provide a new link between aging and neurodegeneration.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Genome Research. - 21 : 10 (2011), p. 1572-1582. -
További szerzők:Wang, Zhen Hortobágyi Tibor (1965-) (patológus) Witten, Joshua T. Zarnack, Kathi Kayikci, Melis Clark, Tyson A. Schweitzer, Anthony C. Rot, Gregor Curk, Tomaž Zupan, Blaž Rogelj, Boris Shaw, Christopher E. Ule, Jernej
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11.

001-es BibID:BIBFORM051599
035-os BibID:PMID: 22934812
Első szerző:Troakes, Claire
Cím:Transportin 1 colocalization with Fused in Sarcoma (FUS) inclusions is not characteristic for amyotrophic lateral sclerosis-FUS confirming disrupted nuclear import of mutant FUS and distinguishing it from frontotemporal lobar degeneration with FUS inclusions / C. Troakes, T. Hortobágyi, C. Vance, S. Al-Sarraj, B. Rogelj, C. E. Shaw
Dátum:2013
ISSN:0305-1846
Megjegyzések:AIMS: Transportin 1 (TNPO 1) is an abundant component of the Fused in Sarcoma (FUS)-immunopositive inclusions seen in a subgroup of frontotemporal lobar degeneration (FTLD-FUS). TNPO 1 has been shown to bind to the C-terminal nuclear localizing signal (NLS) of FUS and mediate its nuclear import. Amyotrophic lateral sclerosis (ALS)-linked C-terminal mutants disrupt TNPO 1 binding to the NLS and impair nuclear import in cell culture. If this held true for human ALS then we predicted that FUS inclusions in patients with C-terminal FUS mutations would not colocalize with TNPO 1. METHODS: Expression of TNPO 1 and colocalization with FUS was studied in the frontal cortex of FTLD-FUS (n = 3) and brain and spinal cord of ALS-FUS (n = 3), ALS-C9orf72 (n = 3), sporadic ALS (n = 7) and controls (n = 7). Expression levels and detergent solubility of TNPO 1 was measured by Western blot. RESULTS: Aggregates of TNPO 1 were abundant and colocalized with FUS inclusions in the cortex of all FTLD-FUS cases. In contrast, no TNPO 1-positive aggregates or FUS colocalization was evident in two-thirds, ALS-FUS cases and was rare in one ALS-FUS case. Nor were they present in C9orf72 or sporadic ALS. No increase in the levels of TNPO 1 was seen in Western blots of spinal cord tissues from all ALS cases compared with controls. CONCLUSIONS: These findings confirm that C-terminal FUS mutations prevent TNPO 1 binding to the NLS, inhibiting nuclear import and promoting cytoplasmic aggregation. The presence of TNPO 1 in wild-type FUS aggregates in FTLD-FUS distinguishes the two pathologies and implicates different disease mechanisms.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:Neuropathology and Applied Neurobiology. - 39 : 5 (2013), p. 553-561. -
További szerzők:Hortobágyi Tibor (1965-) (patológus) Vance, Caroline Al-Sarraj, Safa Rogelj, Boris Shaw, Christopher E.
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001-es BibID:BIBFORM029485
Első szerző:Troakes, Claire
Cím:An MND/ALS phenotype associated with C9orf72 repeat expansion : abundant p62-positive, TDP-43-negative inclusions in cerebral cortex, hippocampus and cerebellum but without associated cognitive decline / Claire Troakes, Satomi Maekawa, Lokesh Wijesekera, Boris Rogelj, László Siklós, Christopher Bell, Bradley Smith, Stephen Newhouse, Caroline Vance, Lauren Johnson, Tibor Hortobágyi, Aleksey Shatunov, Ammar Al-Chalabi, Nigel Leigh, Christopher E. Shaw, Andrew King, Safa Al-Sarraj
Dátum:2012
ISSN:0919-6544
Megjegyzések:The transactive response DNA binding protein (TDP-43) proteinopathies describe a clinico-pathological spectrum of multi-system neurodegeneration that spans motor neuron disease/amyotrophic lateral sclerosis (MND/ALS) and frontotemporal lobar degeneration (FTLD). We have identified four male patients who presented with the clinical features of a pure MND/ALS phenotype (without dementia) but who had distinctive cortical and cerebellar pathology that was different from other TDP-43 proteinopathies. All patients initially presented with weakness of limbs and respiratory muscles and had a family history of MND/ALS. None had clinically identified cognitive decline or dementia during life and they died between 11 and 32 months after symptom onset. Neuropathological investigation revealed lower motor neuron involvement with TDP-43-positive inclusions typical of MND/ALS. In contrast, the cerebral pathology was atypical, with abundant star-shaped p62-immunoreactive neuronal cytoplasmic inclusions in the cerebral cortex, basal ganglia and hippocampus, while TDP-43-positive inclusions were sparse. This pattern was also seen in the cerebellum where p62-positive, TDP-43-negative inclusions were frequent in granular cells. Western blots of cortical lysates, in contrast to those of sporadic MND/ALS and FTLD-TDP, showed high p62 levels and low TDP-43 levels with no high molecular weight smearing. MND/ALS-associated SOD1, FUS and TARDBP gene mutations were excluded; however, further investigations revealed that all four of the cases did show a repeat expansion of C9orf72, the recently reported cause of chromosome 9-linked MND/ALS and FTLD. We conclude that these chromosome 9-linked MND/ALS cases represent a pathological sub-group with abundant p62 pathology in the cerebral cortex, hippocampus and cerebellum but with no significant associated cognitive decline.
Tárgyszavak:Orvostudományok Klinikai orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
külföldön készlt közlemény
Megjelenés:Neuropathology. - 32 : 5 (2012), p. 505-514. -
További szerzők:Maekawa, Satomi Wijesekera, Lokesh Rogelj, Boris Siklós László Bell, Christopher Smith, Bradley Newhouse, Stephen Vance, Caroline Johnson, Lauren Shatunov, Aleksey Al-Chalabi, Ammar Leigh, P. Nigel Shaw, Christopher E. King, Andrew Al-Sarraj, Safa Hortobágyi Tibor (1965-) (patológus)
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