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Tedeschi G, Gallo A, Barkhof F. Distinctive structural and functional MRI footprint for cognitive dysfunction in pediatric MS? Neurology 2014; 82:1296-7. [DOI: 10.1212/wnl.0000000000000320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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d'Ambrosio A, Gallo A, Trojsi F, Corbo D, Esposito F, Cirillo M, Monsurrò MR, Tedeschi G. Frontotemporal cortical thinning in amyotrophic lateral sclerosis. AJNR Am J Neuroradiol 2014; 35:304-10. [PMID: 24113470 PMCID: PMC7965753 DOI: 10.3174/ajnr.a3753] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Accepted: 05/29/2013] [Indexed: 01/06/2023]
Abstract
BACKGROUND AND PURPOSE The extensive application of advanced MR imaging techniques has undoubtedly improved our knowledge of the pathophysiology of amyotrophic lateral sclerosis. Nevertheless, the precise extent of neurodegeneration throughout the central nervous system is not fully understood. In the present study, we assessed the spatial distribution of cortical damage in amyotrophic lateral sclerosis by using a cortical thickness measurement approach. MATERIALS AND METHODS Surface-based morphometry was performed on 20 patients with amyotrophic lateral sclerosis and 18 age- and sex-matched healthy control participants. Clinical scores of disability and disease progression were correlated with measures of cortical thickness. RESULTS The patients with amyotrophic lateral sclerosis showed a significant cortical thinning in multiple motor and extramotor cortical areas when compared with healthy control participants. Gray matter loss was significantly related to disease disability in the left lateral orbitofrontal cortex (P = .04), to disease duration in the right premotor cortex (P = .007), and to disease progression rate in the left parahippocampal cortex (P = .03). CONCLUSIONS Cortical thinning of the motor cortex might reflect upper motor neuron impairment, whereas the extramotor involvement seems to be related to disease disability, progression, and duration. The cortical pattern of neurodegeneration depicted resembles what has already been described in frontotemporal dementia, thereby providing further structural evidence of a continuum between amyotrophic lateral sclerosis and frontotemporal dementia.
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Tedeschi G, Russo A, Conte F, Salemi F, Tessitore A. The role of BOLD-fMRI in elucidating migraine pathophysiology. Neurol Sci 2014; 34 Suppl 1:S47-50. [PMID: 23695045 DOI: 10.1007/s10072-013-1383-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Migraine is a neurologic disorder characterized by disabling attacks of throbbing headache with specific features and associated symptoms. Despite the recent discoveries in basic neurosciences, migraine pathophysiology is not completely understood. Nevertheless, in the last decades, advances in functional magnetic resonance imaging (fMRI) have significantly provided new insights into migraine mechanisms. Blood oxygen level dependent (BOLD) fMRI technique is the most commonly used method to explore brain function and connectivity due to high temporal and spatial resolution. The purpose of this review is to present a synthesis of recent BOLD-fMRI studies which have allowed us to elucidate the complex process involved in migraine pathophysiology.
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Lizio R, Salvatore E, Caroli A, Marzano N, Percio CD, Tedeschi G, Montella P, Antonio G, Fabrizio E, Frisoni G, Soricelli A, Babiloni C, Rossini P. 64. Resting state cortical electroencephalographic rhythms are related to cerebral hypometabolism in subjects with Alzheimer’s Disease. Clin Neurophysiol 2013. [DOI: 10.1016/j.clinph.2013.06.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Lizio R, Babiloni C, Percio CD, Marzano N, Soricelli A, Salvatore E, Ferri R, Cosentino F, Tedeschi G, Montella P, Marino S, Rodriguez G, Nobili F, Vernieri F, Ursini F, Mundi C, Frisoni G, Rossini P. 65. Cortical sources of resting state EEG rhythms reflect disease progression over 1year in mild cognitive impairment and Alzheimer’s disease patients. Clin Neurophysiol 2013. [DOI: 10.1016/j.clinph.2013.06.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Piccirillo G, Lavorgna L, Tessitore A, Bonavita S, Cirillo M, Tortora F, Monsurrò M, Tedeschi G. Primary central nervous system lymphoma or vanishing tumor in a patient presenting a Parinaud's syndrome. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Daniele L, Troysi F, Monsurro M, Tedeschi G. Role of occupational and environmental exposure to heavy metals in amyotrophic lateral sclerosis: A case-control study in Campania Region. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.1546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cirillo G, Todisco V, Tessitore A, Tedeschi G. Clinical Reasoning: A 62-year-old man with right wrist drop. Neurology 2013; 81:e81-4. [DOI: 10.1212/wnl.0b013e3182a43b90] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Lavorgna L, Bonavita S, Ippolito D, Lanzillo R, Salemi G, Patti F, Valentino P, Coniglio G, Buccafusca M, Paolicelli D, d'Ambrosio A, Bresciamorra V, Savettieri G, Zappia M, Alfano B, Gallo A, Simone I, Tedeschi G. Clinical and magnetic resonance imaging predictors of disease progression in multiple sclerosis: a nine-year follow-up study. Mult Scler 2013; 20:220-6. [PMID: 23838177 DOI: 10.1177/1352458513494958] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The objective of this paper is to identify clinical or magnetic resonance imaging (MRI) predictors of long-term clinical progression in a large cohort of multiple sclerosis (MS) patients. METHODS A total of 241 relapsing-remitting (RR) MS patients were included in a nine-year follow-up (FU) study. The reference MRIs were acquired at baseline (BL) as part of a multicenter, cross-sectional, clinical-MRI study. Volumetric MRI metrics were measured by a fully automated, operator-independent, multi-parametric segmentation method. Clinical progression was evaluated as defined by: conversion from RR to secondary progressive (SP) disease course; progression of Expanded Disability Status Scale (EDSS); achievement and time to reach EDSS 4. RESULTS We concluded that conversion from RR to SP (OR 0.79; CI 0.7-0.9), progression of EDSS (OR 0.85; CI 0.77-0.93), achievement of EDSS 4 (OR 0.8; CI 0.7-0.9), and time to reach EDSS 4 (HR 0.88; CI 0.82-0.94) were all predicted by BL gray matter (GM) volume and, except for progression of EDSS, by BL EDSS (respectively: (OR 2.88; CI 1.9-4.36), (OR 2.7; CI 1.7-4.2), (HR 3.86; CI 1.94-7.70)). CONCLUSIONS BL GM volume and EDSS are the best long-term predictors of disease progression in RRMS patients with a relatively long and mild disease.
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Filippi M, Agosta F, Frisoni G, De Stefano N, Bizzi A, Bozzali M, Falini A, Rocca M, Sorbi S, Caltagirone C, Tedeschi G. Magnetic Resonance Imaging in Alzheimer’s Disease: from Diagnosis to Monitoring Treatment Effect. Curr Alzheimer Res 2012; 9:1198-209. [DOI: 10.2174/156720512804142949] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 06/16/2011] [Accepted: 06/20/2011] [Indexed: 11/22/2022]
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Lanzillo R, Quarantelli M, Bonavita S, Ventrella G, Lus G, Vacca G, Prinster A, Orefice G, Tedeschi G, Brescia Morra V. Natalizumab vs interferon beta 1a in relapsing-remitting multiple sclerosis: a head-to-head retrospective study. Acta Neurol Scand 2012; 126:306-14. [PMID: 22107083 DOI: 10.1111/j.1600-0404.2011.01622.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND No head-to-head study has been performed yet to assess whether natalizumab is more effective than classical immunomodulators in multiple sclerosis (MS). AIM To retrospectively compare the efficacy of natalizumab vs IFN beta 1a SC (44 μg; Rebif(®) ) on clinical and radiological findings in two matched cohorts of patients with MS. PATIENTS AND METHODS We retrospectively enrolled two cohorts of 42 patients (F/M: 35/7) with relapsing-remitting multiple sclerosis treated with natalizumab or IFN beta 1a for at least 12 consecutive months. Outcome measures were annualized relapse rate (ARR), changes in expanded disability status scale (EDSS) score, and number of contrast-enhancing lesions (CELs) at magnetic resonance imaging (MRI). RESULTS In both groups, the ARR in the 12 months of treatment was lower than in the 12 months before therapy (0.24 vs 1.50 in natalizumab-treated group, P < 0.0000; 0.55 vs 1.10 in IFN beta 1a-treated group, P = 0.0006), being the effect of natalizumab significantly stronger (P = 0.0125). EDSS reduction was significantly different between the two groups in favor of natalizumab (P = 0.0018). The frequency and number of CELs per patient were decreased in both groups. In the second year, the treatment affected ARR and EDSS progression in the two groups of patients similarly to the first year, whereas number of CELs decreased more significantly in natalizumab group (P = 0.008). CONCLUSIONS After 12 and 24 months of therapy, natalizumab was more effective than IFN beta 1a SC on both disease activity and disability progression. Prospective head-to-head studies would be helpful to further evaluate the differences observed in the MRI outcomes.
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Gallo A, Esposito F, Sacco R, Docimo R, Bisecco A, Della Corte M, D'Ambrosio A, Corbo D, Rosa N, Lanza M, Cirillo S, Bonavita S, Tedeschi G. Visual resting-state network in relapsing-remitting MS with and without previous optic neuritis. Neurology 2012; 79:1458-65. [DOI: 10.1212/wnl.0b013e31826d5eea] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Francavilla R, Calasso M, Calace L, Siragusa S, Ndagijimana M, Vernocchi P, Brunetti L, Mancino G, Tedeschi G, Guerzoni E, Indrio F, Laghi L, Miniello VL, Gobbetti M, De Angelis M. Effect of lactose on gut microbiota and metabolome of infants with cow's milk allergy. Pediatr Allergy Immunol 2012; 23:420-7. [PMID: 22435727 DOI: 10.1111/j.1399-3038.2012.01286.x] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Allergic infants have an unusual gastrointestinal microbiota with low numbers of Bifidobacterium/Lactobacilli and high levels of Clostridium, staphylococci and Escherichia coli. Hydrolyzed formula used to treat these infants is deprived of lactose that instead may influence the gut microbial composition. The aim of the present study is to investigate the influence of lactose on the composition of the gut microbiota and metabolome of infants with cow's milk allergy. Infants prospectively enrolled received an extensively hydrolyzed formula with no lactose for 2 months followed by an identical lactose-containing formula for an additional 2 months. Healthy, age-gender-matched infants were used as controls. The following determinations were performed before and after the introduction of lactose in the diet: enumeration of cells present in the feces using FISH, counts of viable bacterial cells and gas-chromatography mass spectrometry/solid-phase microextraction analysis. The addition of lactose to the diet significantly increases the counts of Bifidobacteria and lactic acid bacteria (p < 0.01), decreases that of Bacteroides/clostridia (p < 0.05) reaching counts found in healthy controls; lactose significantly increases the concentration of total short-chain fatty acids (p < 0.05). The addition of lactose to an extensively hydrolyzed formula is able to positively modulate the composition of gut microbiota by increasing the total fecal counts of Lactobacillus/Bifidobacteria and decreasing that of Bacteroides/Clostridia. The positive effect is completed by the increase of median concentration of short chain fatty acids, especially for acetic and butyric acids demonstrated by the metabolomic analysis.
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Cirillo M, Esposito F, Tedeschi G, Caiazzo G, Sagnelli A, Piccirillo G, Conforti R, Tortora F, Monsurrò MR, Cirillo S, Trojsi F. Widespread microstructural white matter involvement in amyotrophic lateral sclerosis: a whole-brain DTI study. AJNR Am J Neuroradiol 2012; 33:1102-8. [PMID: 22300932 PMCID: PMC8013257 DOI: 10.3174/ajnr.a2918] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Accepted: 09/23/2011] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The extensive application of advanced MR imaging techniques to the study of ALS has undoubtedly improved our knowledge of disease pathophysiology, even if the actual spread of the neurodegenerative process throughout the central nervous system is not fully understood. The present study aimed to detect WM patterns of microstructural abnormalities to better investigate the pathologic process in ALS, within but also beyond CSTs, in a whole-brain analysis. MATERIALS AND METHODS DTI was performed in 19 patients with ALS and 20 matched healthy controls, by using whole-brain TBSS and VOI analyses. RESULTS We observed a significant decrease of FA in the body of CC of the ALS group (P < .05). At the VOI level, both FA decrease and RD increase in the body of CC significantly correlated with the UMN score (P = .003 and P = .02). Additionally, significant voxelwise positive correlations between FA and the ALSFRS-R were detected in the WM tracts underneath the left premotor cortex (P < .05). CONCLUSIONS The correlations between reduction of FA and increase of RD in the body of CC with the UMN score indicate that the WM degeneration in the CC is strictly related to the ALS pyramidal impairment, while the correlation between FA and ALSFRS-R in the associative tracts underneath the left premotor cortex might reflect the progressive spread of the disease from the motor toward the extramotor areas.
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Tessitore A, Amboni M, Cirillo G, Corbo D, Picillo M, Russo A, Vitale C, Santangelo G, Erro R, Cirillo M, Esposito F, Barone P, Tedeschi G. Regional gray matter atrophy in patients with Parkinson disease and freezing of gait. AJNR Am J Neuroradiol 2012; 33:1804-9. [PMID: 22538070 DOI: 10.3174/ajnr.a3066] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE FOG is a troublesome symptom of PD. Despite growing evidence suggesting that FOG in PD may be associated with cognitive dysfunction, the relationship between regional brain atrophy and FOG has been poorly investigated. MATERIALS AND METHODS Optimized VBM was applied to 3T brain MR images of 24 patients with PD and 12 HC. Patients were classified as either FOG- or FOG+ (n = 12) based on their responses to a validated FOG Questionnaire and clinical observation. All patients with PD also underwent a detailed neuropsychological evaluation. RESULTS The VBM analysis in patients with FOG+ showed a reduced GM volume in the left cuneus, precuneus, lingual gyrus, and posterior cingulate cortex compared with both patients with FOG- and HC. We did not detect any significant change of GM volume when comparing HC versus all patients with PD (FOG- and FOG+). FOG clinical severity was significantly correlated with GM loss in posterior cortical regions. Finally, patients with FOG+ scored lower on tests of frontal lobe function. CONCLUSIONS Our findings provide the first evidence that the development of FOG in patients with PD is associated with posterior GM atrophy, which may play a role in the complex pathophysiology of this disabling symptom.
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Lanzillo R, Bonavita S, Quarantelli M, Vacca G, Lus G, Amato L, Carotenuto A, Tedeschi G, Orefice G, Brescia Morra V. Natalizumab is effective in multiple sclerosis patients switching from other disease modifying therapies in clinical practice. Neurol Sci 2012; 34:521-8. [DOI: 10.1007/s10072-012-1088-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 04/06/2012] [Indexed: 10/28/2022]
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van Eijk AMJ, Kusmierczyk-Michulec JT, Francius MJ, Tedeschi G, Piazzola J, Merritt DL, Fontana JD. Sea-spray aerosol particles generated in the surf zone. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011jd015602] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Conforti FL, Sproviero W, Simone IL, Mazzei R, Valentino P, Ungaro C, Magariello A, Patitucci A, La Bella V, Sprovieri T, Tedeschi G, Citrigno L, Gabriele AL, Bono F, Monsurrò MR, Muglia M, Gambardella A, Quattrone A. TARDBP gene mutations in south Italian patients with amyotrophic lateral sclerosis. J Neurol Neurosurg Psychiatry 2011; 82:587-8. [PMID: 20959352 DOI: 10.1136/jnnp.2009.198309] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Dinacci D, Tessitore A, Russo A, De Bonis ML, Lavorgna L, Picconi O, Sacco R, Bonavita S, Gallo A, Servillo G, Marcuccio L, Comerci M, Galletti P, Alfano B, Tedeschi G. BDNF Val66Met polymorphism and brain volumes in multiple sclerosis. Neurol Sci 2010; 32:117-23. [PMID: 20953813 DOI: 10.1007/s10072-010-0433-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2009] [Accepted: 09/22/2010] [Indexed: 12/22/2022]
Abstract
Brain derived neurotrophic factor (BDNF) regulates several CNS physiological and pathological processes. To investigate in multiple sclerosis (MS) patients, the relationship between the Val66Met polymorphism of BDNF and clinical markers of disease activity and MRI markers of focal and diffuse brain pathologies. 45 MS patients and 34 healthy controls (HCs) were genotyped and subjected to clinical-MRI examination. Global white matter fraction (gWM-f), gray matter-f (GM-f), cerebrospinal fluid-f (CSF-f), and abnormal WM-f were measured. We studied 26 Val/Val and 19 Val/Met patients and 23 Val/Val and 11 Val/Met HCs. We found that Val/Val patients had lower GM-f and higher CSF-f than Val/Val HCs; such differences were not statistically significant comparing Val/Met patients to HCs. The regression analysis showed that both Val/Met genotype and relapse number were associated with lower CSF-f. Our data suggest that Met allele might be a protective factor against MS as it is associated to a lower brain atrophy.
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Mancardi GL, Tedeschi G, Amato MP, D’Alessandro R, Drago F, Milanese C, Popoli P, Rossi P, Savettieri G, Tola MR, Comi G, Pozzilli C, Bertolotto A, Marrosu MG, Grimaldi LME, Laroni A, Vanacore N, Covezzoli A, De Rosa M, Piccinni C, Montanaro N, Periotto L, Iommelli R, Tomino C, Provinciali L. Three years of experience: the Italian registry and safety data update. Neurol Sci 2010; 31 Suppl 3:295-7. [DOI: 10.1007/s10072-010-0356-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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De Stefano N, Giorgio A, Battaglini M, Rovaris M, Sormani MP, Barkhof F, Korteweg T, Enzinger C, Fazekas F, Calabrese M, Dinacci D, Tedeschi G, Gass A, Montalban X, Rovira A, Thompson A, Comi G, Miller DH, Filippi M. Assessing brain atrophy rates in a large population of untreated multiple sclerosis subtypes. Neurology 2010; 74:1868-76. [DOI: 10.1212/wnl.0b013e3181e24136] [Citation(s) in RCA: 237] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Agosta F, Chiò A, Cosottini M, De Stefano N, Falini A, Mascalchi M, Rocca MA, Silani V, Tedeschi G, Filippi M. The present and the future of neuroimaging in amyotrophic lateral sclerosis. AJNR Am J Neuroradiol 2010; 31:1769-77. [PMID: 20360339 DOI: 10.3174/ajnr.a2043] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
In patients with ALS, conventional MR imaging is frequently noninformative, and its use has been restricted to excluding other conditions that can mimic ALS. Conversely, the extensive application of modern MR imaging-based techniques to the study of ALS has undoubtedly improved our understanding of disease pathophysiology and is likely to have a role in the identification of potential biomarkers of disease progression. This review summarizes how new MR imaging technology is changing dramatically our understanding of the factors associated with ALS evolution and highlights the reasons why it should be used more extensively in studies of disease progression, including clinical trials.
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Pastori V, Sangalli E, Coccetti P, Pozzi C, Nonnis S, Tedeschi G, Fusi P. CK2 and GSK3 phosphorylation on S29 controls wild-type ATXN3 nuclear uptake. Biochim Biophys Acta Mol Basis Dis 2010; 1802:583-92. [PMID: 20347968 DOI: 10.1016/j.bbadis.2010.03.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Revised: 03/09/2010] [Accepted: 03/14/2010] [Indexed: 10/19/2022]
Abstract
In the present work we show that murine ATXN3 (ATXN3Q6) nuclear uptake is promoted by phosphorylation on serine 29, a highly conserved residue inside the Josephin domain. Both casein kinase 2 (CK2) and glycogen synthase kinase 3 (GSK3) are able to carry out phosphorylation on this residue. S29 phosphorylation was initially assessed in vitro on purified ATXN3Q6, and subsequently confirmed in transfected COS-7 cells, by MS analysis. Site-directed mutagenesis of S29 to an alanine was shown to strongly reduce nuclear uptake, in COS-7 transiently transfected cells overexpressing ATXN3Q6, while substitution with phospho-mimic aspartic acid restored the wild-type phenotype. Finally, treatment with CK2 and GSK3 inhibitors prevented S29 phosphorylation and strongly inhibited nuclear uptake, showing that both kinases are involved in ATXN3Q6 subcellular sorting. Although other authors have previously addressed this issue, we show for the first time that ATXN3 is phosphorylated inside the Josephin domain and that S29 phosphorylation is involved in nuclear uptake of ATXN3.
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Pellecchia MT, Pivonello R, Monsurrò MR, Trojsi F, Longo K, Piccirillo G, Pivonello C, Rocco M, Di Somma C, Colao A, Tedeschi G, Barone P. The GH-IGF system in amyotrophic lateral sclerosis: correlations between pituitary GH secretion capacity, insulin-like growth factors and clinical features. Eur J Neurol 2009; 17:666-71. [DOI: 10.1111/j.1468-1331.2009.02896.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nocentini U, Tedeschi G, Migliaccio R, Dinacci D, Lavorgna L, Bonavita S, Bresciamorra V, Comanducci G, Coniglio G, Livrea P, Mannu R, Orefice G, Paciello M, Patti F, Quattrone A, Salemi G, Savettieri G, Simone I, Valentino P, Zappia M, Bonavita V, Musicco M, Caltagirone C. An exploration of anger phenomenology in multiple sclerosis. Eur J Neurol 2009; 16:1312-7. [DOI: 10.1111/j.1468-1331.2009.02727.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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