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Miah MM, Zinnia MA, Tabassum N, Islam ABMMK. Association between DPP6 gene rs10260404 polymorphism and increased risk of sporadic amyotrophic lateral sclerosis (sALS): a meta-analysis. Neurol Sci 2024; 45:3225-3243. [PMID: 38381392 DOI: 10.1007/s10072-024-07401-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 02/11/2024] [Indexed: 02/22/2024]
Abstract
BACKGROUND Sporadic amyotrophic lateral sclerosis (sALS) is a severe neurodegenerative disease characterized by continuous diminution of motor neurons in the brain and spinal cord. Earlier studies indicated that the DPP6 gene variant has a role in the development of sALS. This meta-analysis was designed to uncover the role of rs10260404 polymorphism of the DPP6 gene and its association with sALS. METHODS All case-control articles published prior to October 2022 on the association between DPP6 (rs10260404) polymorphism and sALS risk were systematically extracted from different databases which include PubMed, PubMed Central, and Google Scholar. Overall odds ratios (ORs) and "95% confidence intervals (CIs)" were summarized for various genetic models. Subgroup and heterogeneity assessments were performed. Egger's and "Begg's tests were applied to evaluate publication bias. Trial sequential analysis (TSA) and false-positive report probability (FPRP) were performed. RESULTS Nine case-control studies containing 4202 sALS cases and 4444 healthy controls were included in the meta-analysis. A significant association of the DPP6 (rs10260404) variant with an increased sALS risk in overall pooled subjects under allelic model [C allele vs. T allele, OR = 1.149, 95% CI (1.010-1.307), p-value = 0.035], dominant model [CC + CT vs. TT, OR = 1.165, 95% CI (1.067-1.273), p-value = 0.001], and homozygote comparison [CC vs. TT, OR = 1.421, 95% CI (1.003-2.011), p-value = 0.048] were observed. Moreover, in subgroup analysis by nationality, remarkable associations were detected in Dutch, Irish, American, and Swedish under allelic, dominant, and homozygote models. Additionally, stratification analysis by ethnicity exhibited an association with sALS risk among Caucasians and Americans under different genetic models. Interestingly, none of the models found any significant association with Asians. CONCLUSION The present meta-analysis indicates that DPP6 (rs10260404) polymorphism could be a candidate risk factor for sALS predisposition.
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Affiliation(s)
| | | | - Nuzhat Tabassum
- Department of Pharmacy, East West University, Dhaka, Bangladesh
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2
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Gotte G. Effects of Pathogenic Mutants of the Neuroprotective RNase 5-Angiogenin in Amyotrophic Lateral Sclerosis (ALS). Genes (Basel) 2024; 15:738. [PMID: 38927674 PMCID: PMC11202570 DOI: 10.3390/genes15060738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
Amyotrophic Lateral Sclerosis (ALS) is a fatal neurodegenerative disease that affects the motoneurons. More than 40 genes are related with ALS, and amyloidogenic proteins like SOD1 and/or TDP-43 mutants are directly involved in the onset of ALS through the formation of polymorphic fibrillogenic aggregates. However, efficacious therapeutic approaches are still lacking. Notably, heterozygous missense mutations affecting the gene coding for RNase 5, an enzyme also called angiogenin (ANG), were found to favor ALS onset. This is also true for the less-studied but angiogenic RNase 4. This review reports the substrate targets and illustrates the neuroprotective role of native ANG in the neo-vascularization of motoneurons. Then, it discusses the molecular determinants of many pathogenic ANG mutants, which almost always cause loss of function related to ALS, resulting in failures in angiogenesis and motoneuron protection. In addition, ANG mutations are sometimes combined with variants of other factors, thereby potentiating ALS effects. However, the activity of the native ANG enzyme should be finely balanced, and not excessive, to avoid possible harmful effects. Considering the interplay of these angiogenic RNases in many cellular processes, this review aims to stimulate further investigations to better elucidate the consequences of mutations in ANG and/or RNase 4 genes, in order to achieve early diagnosis and, possibly, successful therapies against ALS.
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Affiliation(s)
- Giovanni Gotte
- Biological Chemistry Section, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie 8, I-37134 Verona, Italy
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3
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Zhang Y, Li Y, Bin S, Cheng X, Niu Q. A Neglected Gene: The Role of the ANG Gene in the Pathogenesis of Amyotrophic Lateral Sclerosis. Aging Dis 2024:AD.2024.0107. [PMID: 38421827 DOI: 10.14336/ad.2024.0107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 01/07/2024] [Indexed: 03/02/2024] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a rapidly progressive neurodegenerative disease with a poor prognosis. To date, more than 40 ALS-related genes have been identified. However, there is still a lack of targeted therapeutic drugs for the treatment of ALS, especially for patients with acute onset and severe disease. A series of studies reported missense heterozygous mutations with loss of function in the coding region of the ANG gene in ALS patients. ANG deficiency is related to the pathogenesis of ALS, but the underlying mechanism has not been determined. This article aimed to synthesize and consolidate the knowledge of the pathological mechanism of ALS induced by ANG mutation and provide a theoretical basis for ALS diagnosis and targeted therapy. This article further delves into the mechanisms underlying the current understanding of the structure and function of the ANG gene, the association between ANG and ALS, and its pathogenesis. Mutations in ANG may lead to the development of ALS through the loss of neuroprotective function, induction of oxidative stress, or inhibition of rRNA synthesis. ANG mutations and genetic and environmental factors may cause disease heterogeneity and more severe disease than in ALS patients with the wild-type gene. Exploring this mechanism is expected to provide a new approach for ALS treatment through increasing ANG expression or angiogenin activity. However, the related study is still in its infancy; therefore, this article also highlights the need for further exploration of the application of ANG gene mutations in clinical trials and animal experiments is needed to achieve improved early diagnosis and treatment of ALS.
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Affiliation(s)
- Yu Zhang
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yanan Li
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shen Bin
- State Key Laboratory of Reproductive Medicine, Nanjing Medical University, Nanjing, China
| | - Xi Cheng
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qi Niu
- Department of Geriatrics, The First Affiliated Hospital of Nanjing Medical University, Nanjing Medical University, Nanjing, Jiangsu, China
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Dhakal B, Sapkota S, Parajuli A, Khadka B, Subedi B, Paudel R, Thapa R, Rimal S. A novel TFG variant of uncertain significance in amyotrophic lateral sclerosis: A case report and review of literature. Ann Med Surg (Lond) 2022; 84:104840. [PMID: 36582889 PMCID: PMC9793128 DOI: 10.1016/j.amsu.2022.104840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/23/2022] [Accepted: 10/30/2022] [Indexed: 11/09/2022] Open
Abstract
Introduction Amyotrophic lateral sclerosis is a neurodegenerative disease with wide variation of genetics associated with it. Among the different genes described, mutation in TFG is a rare finding in amyotrophic lateral sclerosis. Case presentation A 35 years old right-handed male presenting with ipsilateral weakness was diagnosed with amyotrophic lateral sclerosis. He was found to have missense variant of TFG with uncertain significance on exome sequencing. Clinical discussion The genetics involved in amyotrophic lateral sclerosis is ever-evolving. The identification of new TFG variant in this disease adds another evidence to the role of TFG in neurodegenerative disease. Conclusions The finding of TFG variant of uncertain significance is a rare finding in amyotrophic lateral sclerosis. And with the identification of new TFG variant, it leads to further understanding of spectrum of TFG and its pathophysiology in amyotrophic lateral sclerosis.
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Affiliation(s)
- Bishal Dhakal
- Nepalese Army Institute of Health and Sciences, College of Medicine, Kathmandu, Nepal,Corresponding author. Nepalese Army Institute of Health and Sciences, 44600, Kathmandu, Nepal.
| | - Sachin Sapkota
- Maulakalika Hospital Pvt. Ltd, Bharatpur-10, Chitwan, Nepal
| | | | - Bibek Khadka
- Nepalese Army Institute of Health and Sciences, College of Medicine, Kathmandu, Nepal
| | - Binaya Subedi
- Nepalese Army Institute of Health and Sciences, College of Medicine, Kathmandu, Nepal
| | - Raju Paudel
- Nepalese Army Institute of Health and Sciences, College of Medicine, Kathmandu, Nepal
| | - Rohit Thapa
- Chitwan Medical College, Bharatpur-10, Chitwan, Nepal
| | - Sabin Rimal
- Chitwan Medical College, Bharatpur-10, Chitwan, Nepal
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Zhang J, Liu X, Liang H, Xu S, Wang X, Xu R. Amyotrophic lateral sclerosis in seven provinces of Chinese mainland: A cross-sectional survey from 2015 to 2016. Front Aging Neurosci 2022; 14:946353. [PMID: 36185468 PMCID: PMC9519999 DOI: 10.3389/fnagi.2022.946353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/24/2022] [Indexed: 11/13/2022] Open
Abstract
Background The large-scale survey about amyotrophic lateral sclerosis (ALS) based on both population and hospitals in the Chinese mainland has been deficient at present. To this end, we conducted a cross-sectional survey about ALS based on the population and hospitals in seven provinces of the Chinese mainland in 2015–2016. Methods We surveyed patients with ALS in seven provinces in eastern, middle, and western China. Among them, 13 prefecture-level cities, 13 municipal districts, 13 counties, 26 streets, 52 communities, 39 towns, and 78 administrative villages were selected for the population-based survey. Totally, 13 class-3 general hospitals, 13 class-2 general hospitals, and 26 street health centers or community health service centers in urban districts, and 13 county-level general hospitals, 39 township health centers, and 78 village clinics in rural districts were recruited for the hospital-based survey. Results Among the Chinese mainland, the total prevalence of ALS was slightly lower than that of the world's other nations or districts. The male patients were more than female patients. The prevalence of rural residents was more than that of urban residents. The prevalence of farmers was higher than that of other professions. The majority of ALS was not accompanied by other chronic diseases. The peak onset age of ALS was higher, familial ALS (fALS) cases were slightly more, and the average survival duration of sporadic ALS (sALS) was slightly lower compared with the previous investigation data. The hospitalization expenses of almost 60% of ALS were not more than 10,000 Chinese Yuan. Conclusion Hospitalization expenses in our survey objectives were the lowest in the current reported countries and districts. A farmer was a possible higher risk profession for ALS, the majority of ALS were not accompanied by other chronic diseases. Our survey provided more information on the epidemiology of ALS worldwide and supplied the deficiency of epidemiology survey about ALS from the Chinese mainland.
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Affiliation(s)
- Jie Zhang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaoqing Liu
- Jiangxi Province Center for Disease Control and Prevention, Nanchang, China
| | - Huiting Liang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shengyuan Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Xiaohua Wang
- Department of Geriatrics and General Practice/General Family Medicine, Jiangxi Provincial People's Hospital, Clinical College of Nanchang College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
- *Correspondence: Renshi Xu
| | - Renshi Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
- Xiaohua Wang
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Zhang J, Wen A, Chai W, Liang H, Tang C, Gan W, Xu R. Potential proteomic alteration in the brain of Tg(SOD1*G93A)1Gur mice: A new pathogenesis insight of amyotrophic lateral sclerosis. Cell Biol Int 2022; 46:1378-1398. [PMID: 35801511 DOI: 10.1002/cbin.11842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 02/22/2022] [Indexed: 11/09/2022]
Abstract
The pathogenesis of amyotrophic lateral sclerosis (ALS) remains unclear. The recent studies have suggested that the protein abnormalities could play some important roles in ALS because several protein mutations were found in individuals with this disease. However, proteins that are currently known to be associated with ALS only explain the pathogenesis of this disease in a minority of cases, thus, further screening is needed to identify other ALS-related proteins. In this study, we systematically analyzed and compared the brain proteomic alterations between a mouse model of ALS, the Tg(SOD1*G93A)1Gur model, and wild-type mice using isobaric tags for relative and absolute quantitation (iTRAQ) as well as bioinformatics methods. The results revealed some significant up- and downregulated proteins at the different developmental stages in the ALS-like mice as well as the possibly related cellular components, molecular functions, biological processes, and pathways in the development of ALS. Our results identified some possible proteins that participate in the pathogenesis of ALS as well as the cellular components that are damaged by these proteins, we additionally identified the molecular functions, the biological processes, and the pathways of these proteins as well as the molecules that are associated with these pathways. This study represents an important preliminary investigation of the role of proteomic abnormalities in the pathogenesis of ALS, both in human patients and other animal models. We present some novel findings that may serve as a basis for further investigation of abnormal proteins that are involved in the pathogenesis of ALS.
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Affiliation(s)
- Jie Zhang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - An Wen
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Wen Chai
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Huiting Liang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Chunyan Tang
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Weiming Gan
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Renshi Xu
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.,Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi, China
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7
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Shen X, Tang C, Kang Q, Zhu Y, Xu S, Jiang J, Xu R. Distribution Changes of Neural Precursor Cells in the Brain Stem of Tg(SOD1*G93A)1Gur Mice. NEURODEGENER DIS 2022; 21:132-145. [PMID: 35584655 DOI: 10.1159/000525124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 04/19/2022] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES The alteration of vimentin-containing cells (VCCs) proliferation, differentiation and migration in the brain stem of amyotrophic lateral sclerosis (ALS)-like transgenic mice (Tg(SOD1*G93A)1Gur mice) (TG mice) and wild-type mice (WT mice) at the different disease stages of TG mice were studied in this study. The aim of this study was to investigate the change features of proliferation, differentiation and migration of endogenous neural precursor cells (NPCs) and to explore the potential effects of NPCs on restoring degenerated neurons in ALS. METHODS The proliferation, differentiation and migration of VCCs in both different anatomic regions and neural cells of brain stem at the different stages including pre-onset (60-70 days), onset (90-100 days) and progression (120-130 days) stages of TG mice and in WT mice (control) were examined using the immunofluorescence technology. RESULTS VCCs mainly distributed in the around (peripheral) central canal (CC) and the nuclei of brain stem in adult WT mice. VCCs proliferated and differentiated into astrocytes and directionally migrated from the around CC to the nuclei of brain stem, then to the ventral part of damaged regions in brain stem at the pre-onset, onset and progression stages of TG mice. CONCLUSIONS The data suggest that NPCs widely distribute in the brain stem of adult TG mice can differentiate into astrocytes and migrate into damaged brain regions. This response might be a potential mechanism to repair degenerated motor neurons and restore dysfunctional neural circuitry in ALS.
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Affiliation(s)
- Xiaoping Shen
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
- Department of Neurology, Jiujiang First People's Hospital, Jiujiang, China
- Department of Neurology, Medical College of Nanchang University, Nanchang, China
| | - Chunyan Tang
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Qin Kang
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Yu Zhu
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Shengyuan Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Jianxiang Jiang
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Renshi Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Clinical College of Nanchang Medical College, First Affiliated Hospital of Nanchang Medical College, Nanchang, China
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Li C, Zhu Y, Chen W, Li M, Yang M, Shen Z, Zhou Y, Wang L, Wang H, Li S, Ma J, Gong M, Xu R. Circulating NAD+ Metabolism-Derived Genes Unveils Prognostic and Peripheral Immune Infiltration in Amyotrophic Lateral Sclerosis. Front Cell Dev Biol 2022; 10:831273. [PMID: 35155438 PMCID: PMC8831892 DOI: 10.3389/fcell.2022.831273] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/13/2022] [Indexed: 12/12/2022] Open
Abstract
Background: Nicotinamide adenine dinucleotide (NAD+) metabolism has drawn more attention on neurodegeneration research; however, the role in Amyotrophic Lateral Sclerosis (ALS) remains to be fully elucidated. Here, the purpose of this study was to investigate whether the circulating NAD+ metabolic-related gene signature could be identified as a reliable biomarker for ALS survival. Methods: A retrospective analysis of whole blood transcriptional profiles and clinical characteristics of 454 ALS patients was conducted in this study. A series of bioinformatics and machine-learning methods were combined to establish NAD+ metabolic-derived risk score (NPRS) to predict overall survival for ALS patients. The associations of clinical characteristic with NPRS were analyzed and compared. Receiver operating characteristic (ROC) and the calibration curve were utilized to assess the efficacy of prognostic model. Besides, the peripheral immune cell infiltration was assessed in different risk subgroups by applying the CIBERSORT algorithm. Results: Abnormal activation of the NAD+ metabolic pathway occurs in the peripheral blood of ALS patients. Four subtypes with distinct prognosis were constructed based on NAD+ metabolism-related gene expression patterns by using the consensus clustering method. A comparison of the expression profiles of genes related to NAD+ metabolism in different subtypes revealed that the synthase of NAD+ was closely associated with prognosis. Seventeen genes were selected to construct prognostic risk signature by LASSO regression. The NPRS exhibited stronger prognostic capacity compared to traditional clinic-pathological parameters. High NPRS was characterized by NAD+ metabolic exuberant with an unfavorable prognosis. The infiltration levels of several immune cells, such as CD4 naive T cells, CD8 T cells, neutrophils and macrophages, are significantly associated with NPRS. Further clinicopathological analysis revealed that NPRS is more appropriate for predicting the prognostic risk of patients with spinal onset. A prognostic nomogram exhibited more accurate survival prediction compared with other clinicopathological features. Conclusions: In conclusion, it was first proposed that the circulating NAD+ metabolism-derived gene signature is a promising biomarker to predict clinical outcomes, and ultimately facilitating the precise management of patients with ALS.
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Affiliation(s)
- Cheng Li
- Department of Neurology, Jiangxi Provincial People’s Hospital, Affiliated People’s Hospital of Nanchang University, Nanchang, China
| | - Yu Zhu
- Department of Neurology, Jiangxi Provincial People’s Hospital, Affiliated People’s Hospital of Nanchang University, Nanchang, China
- *Correspondence: Yu Zhu, , ; Renshi Xu, ,
| | - Wenzhi Chen
- Department of Neurology, Jiangxi Provincial People’s Hospital, Affiliated People’s Hospital of Nanchang University, Nanchang, China
| | - Menghua Li
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Mi Yang
- Department of Medical Service, The First Hospital of Nanchang, Affiliated Nanchang Hospital of Sun Yat-sen University, Nanchang, China
| | - Ziyang Shen
- School of Computer and Information Engineering, Jiangxi Agricultural University, Nanchang, China
| | - Yiyi Zhou
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Lulu Wang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Huan Wang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shu Li
- Department of Neurology, Jiangxi Provincial People’s Hospital, Affiliated People’s Hospital of Nanchang University, Nanchang, China
| | - Jiacheng Ma
- School of Aircraft Engineering, Nanchang Hangkong University, Nanchang, China
| | - Mengni Gong
- Medical Examination Center, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Renshi Xu
- Department of Neurology, Jiangxi Provincial People’s Hospital, Affiliated People’s Hospital of Nanchang University, Nanchang, China
- *Correspondence: Yu Zhu, , ; Renshi Xu, ,
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Liu Y, Wei CH, Li C, Chen WZ, Zhu Y, Xu RS. Phosphoinositide-3-kinase regulatory subunit 4 participates in the occurrence and development of amyotrophic lateral sclerosis by regulating autophagy. Neural Regen Res 2021; 17:1609-1616. [PMID: 34916448 PMCID: PMC8771104 DOI: 10.4103/1673-5374.330621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
The development of amyotrophic lateral sclerosis (ALS) may be related to the abnormal alterations of multiple proteins. Our previous study revealed that the expression of phosphoinositide-3-kinase regulatory subunit 4 (PIK3R4) was decreased in ALS. However, the role of PIK3R4 in ALS pathogenesis remains unknown. This study was the first to find that transfection of PC12 cells with small interfering RNA against the PIK3R4 gene significantly decreased the expression levels of PIK3R4 and the autophagy-related proteins p62 and LC3. Additionally, in vivo experiments revealed that the PIK3R4 protein was extensively expressed in the anterior horn, posterior horn, central canal, and areas surrounding the central canal in cervical, thoracic, and lumbar segments of the spinal cord in adult mice. PIK3R4 protein was mainly expressed in the neurons within the spinal lumbar segments. PIK3R4 and p62 expression levels were significantly decreased at both the pre-onset and onset stages of ALS disease in Tg(SOD1*G93A)1Gur mice compared with control mice, but these proteins were markedly increased at the progression stage. LC3 protein expression did not change during progression of ALS. These findings suggest that PIK3R4 likely participates in the prevention of ALS progression. This study was approved by the Ethics Committee for Animal Care and Use of Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University (approval No. 2020025) on March 26, 2020.
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Affiliation(s)
- Yue Liu
- Department of Neurology, First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Cai-Hui Wei
- Department of Neurology, First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Cheng Li
- Department of Neurology, First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Wen-Zhi Chen
- Department of Neurology, First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Yu Zhu
- Department of Neurology, First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Ren-Shi Xu
- Department of Neurology, First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi Province, China
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10
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Zhang J, Qiu W, Hu F, Zhang X, Deng Y, Nie H, Xu R. The rs2619566, rs10260404, and rs79609816 Polymorphisms Are Associated With Sporadic Amyotrophic Lateral Sclerosis in Individuals of Han Ancestry From Mainland China. Front Genet 2021; 12:679204. [PMID: 34421992 PMCID: PMC8378233 DOI: 10.3389/fgene.2021.679204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 06/25/2021] [Indexed: 11/21/2022] Open
Abstract
The pathogenesis of sporadic amyotrophic lateral sclerosis (sALS) remains unknown; however, recent research suggests that genetic factors may play an important role. This study aimed at investigating possible genetic risk factors for the pathogenesis of sALS. In our previous study, we conducted a genome-wide association study (GWAS) in 250 sALS patients and 250 control participants of Han ancestry from mainland China (HACM) and retrospectively analyzed the previously reported candidate loci related with sALS including our GWAS investigated results. In this study, twenty-seven candidate loci that were most likely associated with sALS were selected for further analysis in an independent case/control population of 239 sALS patients and 261 control subjects of HACM ethnicity using sequenom massARRAY methodology and DNA sequencing. We discovered that the polymorphism rs2619566 located within the contactin-4 (CNTN4) gene, rs10260404 in the dipeptidyl-peptidase 6 (DPP6) gene, and rs79609816 in the inositol polyphosphate-5-phosphatase B (INPP5B) gene were strongly associated with sALS in subjects of HACM ethnicity. Subjects harboring the minor C allele of rs2619566 and the minor T allele of rs79609816 exhibited an increased risk for sALS development, while carriers of the minor C allele of rs10260404 showed a decreased risk of sALS development compared to the subjects of other genotypes. The polymorphisms of rs2619566, rs10260404, and rs79609816 may change or affect the splicing, transcription, and translation of CNTN4, DPP6, and INPP5B genes and may play roles in the pathogenesis of sALS roles in the pathogenesis of sALS.
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Affiliation(s)
- Jie Zhang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Weiwen Qiu
- Department of Neurology, The Affiliated People's Hospital of Nanchang University, The First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Nanchang, China
| | - Fan Hu
- Department of Neurology, The Affiliated People's Hospital of Nanchang University, The First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Nanchang, China
| | - Xiong Zhang
- Department of Neurology, Maoming People's Hospital, Maoming, China
| | - Youqing Deng
- Department of Neurology, The Third Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hongbing Nie
- Department of Neurology, The Affiliated People's Hospital of Nanchang University, The First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Nanchang, China
| | - Renshi Xu
- Department of Neurology, The Affiliated People's Hospital of Nanchang University, The First Affiliated Hospital of Nanchang Medical College, Jiangxi Provincial People's Hospital, Nanchang, China
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11
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Li H, Sun Y, Chen R. Constructing and validating a diagnostic nomogram for multiple sclerosis via bioinformatic analysis. 3 Biotech 2021; 11:127. [PMID: 33680693 DOI: 10.1007/s13205-021-02675-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 02/01/2021] [Indexed: 12/11/2022] Open
Abstract
The purpose of this study was to identify biomarkers and construct a diagnostic prediction model for multiple sclerosis (MS). Microarray datasets in the Gene Expression Omnibus (GEO) were downloaded. Weighted gene coexpression analysis (WGCNA) was used to search for hub modules and biomarkers related to MS. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were used to roughly define their biological functions and pathways. Least absolute shrinkage and selection operator (LASSO) regression and multivariate logistic regression analysis were used to identify the diagnostic biomarkers and construct a nomogram. The calibration curve and receiver operating characteristic (ROC) curve were used to judge the diagnostic predictive ability. In addition, cell-type identification by estimating relative subsets of RNA transcripts (CIBERSORT) algorithm was used to calculate the proportion of 22 kinds of immune cells. GSE41850 was used as the training set, and GSE17048 was used as the test set. WGCNA revealed one hub module containing 165 hub genes. Most of their biological functions and pathways are related to cell metabolism and immune cell activation. The diagnostic nomogram contained ARPC5, ROD1, UBQLN2, ZNF281, ABCA1 and FAS. The ROC curve and the calibration curve of the training set and test set confirmed that the nomogram had great prediction ability. In addition, monocytes and M0 macrophages were significantly different between MS patients and healthy people. The expression of ARPC5, ZNF281 and ABCA1 is correlated with M0 macrophages. The nomogram provides new insights and contributes to the accurate diagnosis of MS. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02675-1.
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Affiliation(s)
- Hao Li
- Department of Pediatrics, Hejiang People's Hospital, Sichuan, China
| | - Yong Sun
- Department of Pediatrics, Hejiang People's Hospital, Sichuan, China
| | - Rong Chen
- Department of Pediatrics, Hejiang People's Hospital, Sichuan, China
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12
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Xu RS, Yuan M. Considerations on the concept, definition, and diagnosis of amyotrophic lateral sclerosis. Neural Regen Res 2021; 16:1723-1729. [PMID: 33510061 PMCID: PMC8328770 DOI: 10.4103/1673-5374.306065] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The concept, definition, and diagnosis of amyotrophic lateral sclerosis (ALS) currently present some problems. This article systematically reviews the literature on the history, current concepts, definition, and diagnosis of ALS, and discloses the present problems based on the retrieved literature and the authors’ clinical experience. The current concepts and definitions of ALS have not yet been unified or standardized in clinical practice, and are sometimes vague or inaccurate, which can cause difficulties for neurologists in the clinical treatment of ALS. The concept and definition of ALS need to be further ascertained, and the current diagnostic criteria for ALS require further development. The identification of effective and objective biomarkers may be a feasible method for the early and accurate diagnosis of ALS. Therefore, future research should focus on the identification of reliable biomarkers—especially neuroimaging biomarkers—through autopsy. Standardizing the concept and definition of ALS and formulating clear diagnostic criteria will largely avoid many uncertainties in the future clinical research and treatment of ALS, which will greatly benefit patients.
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Affiliation(s)
- Ren-Shi Xu
- Department of Neurology, Jiangxi provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Min Yuan
- Department of Neurology, Jiangxi provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, Jiangxi Province, China
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13
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Xu Z, Jiang J, Xu S, Xie Z, He P, Jiang S, Xu R. Nerve Growth Factor is a Potential Treated Target in Tg(SOD1*G93A)1Gur Mice. Cell Mol Neurobiol 2020; 42:1035-1046. [PMID: 33236288 DOI: 10.1007/s10571-020-00993-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/28/2020] [Indexed: 12/11/2022]
Abstract
Nerve growth factor (NGF) is a protective factor of neural cells; the possible relationship between the NGF and the pathogenesis of amyotrophic lateral sclerosis (ALS) hasn't been completely known. In this study, we observed and analyzed the expression and distribution of NGF, as well as the possible relationship between the NGF expression and distribution and the neural cell death in both SOD1 wild-type (WT) and Tg(SOD1*G93A)1Gur (TG) mice applying the fluorescence immunohistochemistry method. The results showed that the expression and distribution of NGF in the anterior horn (AH), the lateral horn (LH), and the surrounding central canal (CC) significantly increased at the supper early stage of ALS (Pre-onset stage) and the early stage (Onset stage), but the NGF expression and distribution in the AH, the LH, and the surrounding CC significantly reduced at the progression stage. The astrocyte, neuron, and oligodendrocyte produced the NGF and the neural precursor cells (NPCs) produced the NGF. The neural cell death gradually increased accompanying with the reduction of NGF expression and distribution. Our data suggested that the NGF was a protective factor of neural cells, because the neural cells in the AH, the LH, and the surrounding CC produced more NGF at the supper early and early stage of ALS; moreover, the NPCs produced the NGF. It implied that the NGF exerted the protective effect of neural cells, prevented from the neural cell death and aroused the potential of self-repair in the development of ALS.
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Affiliation(s)
- Zhenzhen Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.,Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Jianxiang Jiang
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Shengyuan Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Zunchun Xie
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.,Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Pei He
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Shishi Jiang
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Renshi Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China.
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14
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Calió ML, Henriques E, Siena A, Bertoncini CRA, Gil-Mohapel J, Rosenstock TR. Mitochondrial Dysfunction, Neurogenesis, and Epigenetics: Putative Implications for Amyotrophic Lateral Sclerosis Neurodegeneration and Treatment. Front Neurosci 2020; 14:679. [PMID: 32760239 PMCID: PMC7373761 DOI: 10.3389/fnins.2020.00679] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 06/03/2020] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a progressive and devastating multifactorial neurodegenerative disorder. Although the pathogenesis of ALS is still not completely understood, numerous studies suggest that mitochondrial deregulation may be implicated in its onset and progression. Interestingly, mitochondrial deregulation has also been associated with changes in neural stem cells (NSC) proliferation, differentiation, and migration. In this review, we highlight the importance of mitochondrial function for neurogenesis, and how both processes are correlated and may contribute to the pathogenesis of ALS; we have focused primarily on preclinical data from animal models of ALS, since to date no studies have evaluated this link using human samples. As there is currently no cure and no effective therapy to counteract ALS, we have also discussed how improving neurogenic function by epigenetic modulation could benefit ALS. In support of this hypothesis, changes in histone deacetylation can alter mitochondrial function, which in turn might ameliorate cellular proliferation as well as neuronal differentiation and migration. We propose that modulation of epigenetics, mitochondrial function, and neurogenesis might provide new hope for ALS patients, and studies exploring these new territories are warranted in the near future.
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Affiliation(s)
| | - Elisandra Henriques
- Department of Physiological Science, Santa Casa de São Paulo School of Medical Science, São Paulo, Brazil
| | - Amanda Siena
- Department of Physiological Science, Santa Casa de São Paulo School of Medical Science, São Paulo, Brazil
| | - Clélia Rejane Antonio Bertoncini
- CEDEME, Center of Development of Experimental Models for Medicine and Biology, Federal University of São Paulo, São Paulo, Brazil
| | - Joana Gil-Mohapel
- Division of Medical Sciences, Faculty of Medicine, University of Victoria and Island Medical Program, University of British Columbia, Victoria, BC, Canada
| | - Tatiana Rosado Rosenstock
- Department of Physiological Science, Santa Casa de São Paulo School of Medical Science, São Paulo, Brazil
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15
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Zhu Y, Liu Y, Yang F, Chen W, Jiang J, He P, Jiang S, Li M, Xu R. All-Trans Retinoic Acid Exerts Neuroprotective Effects in Amyotrophic Lateral Sclerosis-Like Tg (SOD1*G93A)1Gur Mice. Mol Neurobiol 2020; 57:3603-3615. [PMID: 32548665 DOI: 10.1007/s12035-020-01973-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 06/01/2020] [Indexed: 02/06/2023]
Abstract
All-trans retinoic acid (ATRA), a ligand of retinoic acid receptors, could regulate various biological processes by activating retinoic acid signals. Recent studies suggested that ATRA displays multiple neuroprotective effects and thereby alleviates the disease progression in a variety of neurological diseases. Our previous studies found that the impaired retinoic acid signal decreased ALDH1A2, an essential synthetase of ATRA, in the spinal cord of ALS mice. Here, we evaluated the neuroprotective and neurorestorative effects of ATRA in a SOD1-G93A transgenic mice model of ALS. We administrated ATRA(3 mg/kg) daily from the onset stage to the progression stage for 5 weeks. Behavioral tests showed that ATRA improved the forelimb grip strength in ALS mice and may slow the disease progression, but not the body weight. ATRA could completely reverse the impaired retinoic acid receptor alpha (RARα) signal in the spinal cord of ALS mice. This effect was accompanied by enhancing the degradation of misfolded proteins via the ubiquitin-proteasome system, regulating the oxidative stress, inhibiting the astrocyte activation, and promoting the neurotrophic signal recovery. Our findings are the first to indicate that the damaged retinoic acid signal is involved in the pathogenesis of ALS, and ATRA could induce the functional neuroprotection via repairing the damaged retinoic acid signal.
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Affiliation(s)
- Yu Zhu
- Department of Neurology, Affiliated People's Hospital of Nanchang University, Jiangxi Provincial People's Hospital, Nanchang, 330006, Jiangxi, China.,Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Yue Liu
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Fang Yang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Wenzhi Chen
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Jianxian Jiang
- Department of Neurology, Affiliated People's Hospital of Nanchang University, Jiangxi Provincial People's Hospital, Nanchang, 330006, Jiangxi, China.,Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Pei He
- Department of Neurology, Affiliated People's Hospital of Nanchang University, Jiangxi Provincial People's Hospital, Nanchang, 330006, Jiangxi, China.,Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Shishi Jiang
- Department of Neurology, Affiliated People's Hospital of Nanchang University, Jiangxi Provincial People's Hospital, Nanchang, 330006, Jiangxi, China.,Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Menhua Li
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, China
| | - Renshi Xu
- Department of Neurology, Affiliated People's Hospital of Nanchang University, Jiangxi Provincial People's Hospital, Nanchang, 330006, Jiangxi, China.
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16
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Nagel G, Peter RS, Rosenbohm A, Koenig W, Dupuis L, Rothenbacher D, Ludolph AC. Association of Insulin-like Growth Factor 1 Concentrations with Risk for and Prognosis of Amyotrophic Lateral Sclerosis - Results from the ALS Registry Swabia. Sci Rep 2020; 10:736. [PMID: 31959864 PMCID: PMC6971302 DOI: 10.1038/s41598-020-57744-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 12/20/2019] [Indexed: 11/09/2022] Open
Abstract
We investigated the associations of serum concentration of insulin-like growth factor 1 (IGF1) with risk and prognosis of ALS in the ALS registry (October 2010-June 2014, median follow-up 67.6 months) in a case-control and cohort study, respectively. Serum samples were measured for IGF-1. Information on covariates was collected by standardized questionnaire. We applied conditional logistic regression to appraise the risk and Cox proportional hazards models to appraise the prognostic value of IGF-1. Data of 294 ALS patients (mean age 65.4 (SD 11.0) years, 60.2% men) and 504 controls were included in the case-control study. Median serum IGF-1 concentrations were slightly higher in ALS cases than in controls (101 vs. 99.5 ng/ml). IGF-1 concentrations were not associated with ALS risk in the fully adjusted model (top vs. bottom quartile: OR 1.16; 95%-CI 0.73-1.84, p for trend = 0.44). Among 293 ALS cases (mean age 65.5 (SD 10.5) years, 56.8% men) 243 died during follow-up. We found a statistically significant inverse association between continuous IGF-1 concentrations and survival (p = 0.01). Very high values IGF-1 were associated with a better prognosis of ALS suggesting that functions related to IGF-1 could be involved in survival.
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Affiliation(s)
- Gabriele Nagel
- Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
| | - Raphael S Peter
- Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
| | | | - Wolfgang Koenig
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany
| | - Luc Dupuis
- INSERM U1118, Université de Strasbourg, Strasbourg, France
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17
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Czarny P, Bialek K, Ziolkowska S, Strycharz J, Sliwinski T. DNA damage and repair in neuropsychiatric disorders. What do we know and what are the future perspectives? Mutagenesis 2019; 35:79-106. [DOI: 10.1093/mutage/gez035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 09/27/2019] [Indexed: 12/11/2022] Open
Abstract
AbstractOver the past two decades, extensive research has been done to elucidate the molecular etiology and pathophysiology of neuropsychiatric disorders. In majority of them, including Alzheimer’s disease (AD), Parkinson’s disease (PD), amyotrophic lateral sclerosis (ALS), bipolar disorder (BD), schizophrenia and major depressive disorder, increased oxidative and nitrosative stress was found. This stress is known to induce oxidative damage to biomolecules, including DNA. Accordingly, increased mitochondrial and nuclear DNA, as well as RNA damage, were observed in patients suffering from these diseases. However, recent findings indicate that the patients are characterised by impaired DNA repair pathways, which may suggest that these DNA lesions could be also a result of their insufficient repair. In the current systematic, critical review, we aim to sum up, using available literature, the knowledge about the involvement of nuclear and mitochondrial DNA damage and repair, as well as about damage to RNA in pathoetiology of neuropsychiatric disorders, i.e., AD, PD, ALS, BD, schizophrenia and major depressive disorder, as well as the usefulness of the discussed factors as being diagnostic markers and targets for new therapies. Moreover, we also underline the new directions to which future studies should head to elucidate these phenomena.
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Affiliation(s)
- Piotr Czarny
- Department of Medical Biochemistry, Medical University of Lodz, Lodz, Poland
| | - Katarzyna Bialek
- Laboratory of Medical Genetics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Sylwia Ziolkowska
- Department of Medical Biochemistry, Medical University of Lodz, Lodz, Poland
| | - Justyna Strycharz
- Department of Medical Biochemistry, Medical University of Lodz, Lodz, Poland
| | - Tomasz Sliwinski
- Laboratory of Medical Genetics, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
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18
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Tang C, Zhu L, Zhou Q, Li M, Zhu Y, Xu Z, Lu Y, Xu R. Altered Features of Vimentin-containing Cells in Cerebrum of Tg(SOD1*G93A)1Gur Mice: A Preliminary Study on Cerebrum Endogenous Neural Precursor Cells in Amyotrophic Lateral Sclerosis. Int J Biol Sci 2019; 15:2830-2843. [PMID: 31853221 PMCID: PMC6909959 DOI: 10.7150/ijbs.33461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 09/16/2019] [Indexed: 12/11/2022] Open
Abstract
Vimentin-containing cells (VCCs) are potential neural precursor cells in central nervous systems, Thus, we studied the alteration of VCCs proliferation, differentiation and migration in the cerebrum during different stages of Tg(SOD1*G93A)1Gur mice. It aims to search potential ways regulating the proliferation, differentiation and migration of endogenous VCCs, to enhance their neural repair function and to cure or prevent from the development of ALS. We observed and analyzed the proliferation, differentiation and migration of VCCs in different anatomic regions and cell types of cerebrum at different stages including the pre-onset (60-70 days), onset (90-100 days) and progression (120-130 days) of wild-type (WT) and Tg(SOD1*G93A)1Gur mice using the fluorescent immunohistochemical technology. Results showed that VCCs in the cerebrum were mostly distributed in the ventricular system, periventricular structures, the hippocampus and the cerebral cortex in WT mice. VCCs significantly reduced in the motor cortex and the cingulate cortex in Tg(SOD1*G93A)1Gur mice. All vimentin expressed in the extranuclear and almost all VCCs were astrocytes in WT mice and Tg(SOD1*G93A)1Gur mice. There were no significant difference in the number of Brdu and nestin positive cells in left and right brains of WT mice and Tg(SOD1*G93A)1Gur mice in the period of 60-130 days. Our data suggested that there existed extensively NPCs in the cerebrum of adult mice. In ALS-like Tg(SOD1*G93A)1Gur mice, VCCs in the motor cortex, the olfactory cortex and the cingulate cortex showed that no any proliferation and redistribution in neural cells of VCCs in the cerebrum occurred in all stages of ALS, might migrate to damaged regions.
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Affiliation(s)
- Chunyan Tang
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Lei Zhu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Qi Zhou
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Menghua Li
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Yu Zhu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Zhenzhen Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Yi Lu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
| | - Renshi Xu
- Department of Neurology, Jiangxi Provincial People's Hospital, Affiliated People's Hospital of Nanchang University, Nanchang 330006, Jiangxi, china
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
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19
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Rosenbohm A, Nagel G, Peter RS, Brehme T, Koenig W, Dupuis L, Rothenbacher D, Ludolph AC. Association of Serum Retinol-Binding Protein 4 Concentration With Risk for and Prognosis of Amyotrophic Lateral Sclerosis. JAMA Neurol 2019; 75:600-607. [PMID: 29482216 DOI: 10.1001/jamaneurol.2017.5129] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Importance Knowledge about the metabolic states of patients with amyotrophic lateral sclerosis (ALS) may provide a therapeutic approach. Objective To investigate the association between the onset and prognosis of ALS and serum retinol-binding protein 4 (RBP4) concentration as a biomarker for insulin resistance and vitamin A metabolism. Design, Setting, and Participants Case-control design for risk factors of ALS; cohort design for prognostic factors within ALS cases. Between October 1, 2010, and June 30, 2014, a population-based case-control study with randomly selected controls was established based on the ALS Registry Swabia in southern Germany, with a target population of 8.4 million inhabitants. Response rates were 64.8% among the cases and 18.7% among the controls. The dates of analysis were April 2016 to May 2017. Main Outcomes and Measures Serum samples were measured for RBP4. Information on covariates was assessed by an interview-based standardized questionnaire. Main outcomes and measures were adjusted odds ratios for risk of ALS associated with serum RBP4 concentration, as well as time to death associated with RBP4 concentration at baseline in ALS cases only. Conditional logistic regression was applied to calculate multivariable odds ratios for risk of ALS. Survival models were used in cases only to appraise their prognostic value. Results Data from 289 patients with ALS (mean [SD] age, 65.7 [10.5] years; 172 [59.5%] male) and 504 controls (mean [SD] age, 66.3 [9.8] years; 299 [59.3%] male) were included in the case-control study. Compared with controls, ALS cases were characterized by lower body mass index, less educational attainment, smoking, light occupational work intensity, and self-reported diabetes. The median serum RBP4 concentration was lower in ALS cases than in controls (54.0 vs 59.5 mg/L). In the multivariable model, increasing RBP4 concentration was associated with reduced odds for ALS (top vs bottom quartile odds ratio, 0.36; 95% CI, 0.22-0.59; P for trend <.001), which persisted after further adjustment for renal function and for leptin and adiponectin. Among 279 ALS cases during a median follow-up of 14.5 months, 104 died (mean [SD] age, 68.9 [10.3] years; 56 [53.9%] male). In this ALS cohort, an inverse association was found between serum RBP4 concentration as a continuous measure and survival. Conclusions and Relevance RBP4 was inversely related to risk for and prognosis of ALS, suggesting that vitamin A metabolism or impaired insulin signaling could be involved. Further research, including a prospective design and other biological markers, is necessary to clarify the role of insulin resistance in the pathogenesis of ALS.
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Affiliation(s)
| | - Gabriele Nagel
- Institute for Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany
| | - Raphael S Peter
- Institute for Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany
| | - Torben Brehme
- Institute for Epidemiology and Medical Biometry, University of Ulm, Ulm, Germany
| | - Wolfgang Koenig
- Department of Internal Medicine II-Cardiology, University of Ulm Medical Center, Ulm, Germany.,Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.,German Center for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich
| | - Luc Dupuis
- Institut National de la Santé et de la Récherche Médicale Unité 1118, Université de Strasbourg, Strasbourg, France
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20
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Parakh S, Perri ER, Jagaraj CJ, Ragagnin AMG, Atkin JD. Rab-dependent cellular trafficking and amyotrophic lateral sclerosis. Crit Rev Biochem Mol Biol 2019; 53:623-651. [PMID: 30741580 DOI: 10.1080/10409238.2018.1553926] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Rab GTPases are becoming increasingly implicated in neurodegenerative disorders, although their role in amyotrophic lateral sclerosis (ALS) has been somewhat overlooked. However, dysfunction of intracellular transport is gaining increasing attention as a pathogenic mechanism in ALS. Many previous studies have focused axonal trafficking, and the extreme length of axons in motor neurons may contribute to their unique susceptibility in this disorder. In contrast, the role of transport defects within the cell body has been relatively neglected. Similarly, whilst Rab GTPases control all intracellular membrane trafficking events, their role in ALS is poorly understood. Emerging evidence now highlights this family of proteins in ALS, particularly the discovery that C9orf72 functions in intra transport in conjunction with several Rab GTPases. Here, we summarize recent updates on cellular transport defects in ALS, with a focus on Rab GTPases and how their dysfunction may specifically target neurons and contribute to pathophysiology. We discuss the molecular mechanisms associated with dysfunction of Rab proteins in ALS. Finally, we also discuss dysfunction in other modes of transport recently implicated in ALS, including nucleocytoplasmic transport and the ER-mitochondrial contact regions (MAM compartment), and speculate whether these may also involve Rab GTPases.
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Affiliation(s)
- S Parakh
- a Faculty of Medicine and Health Sciences, Department of Biomedical Sciences, Centre for MND Research , Macquarie University , Sydney , Australia.,b Department of Biochemistry and Genetics , La Trobe Institute for Molecular Science, La Trobe University , Melbourne , Australia
| | - E R Perri
- a Faculty of Medicine and Health Sciences, Department of Biomedical Sciences, Centre for MND Research , Macquarie University , Sydney , Australia.,b Department of Biochemistry and Genetics , La Trobe Institute for Molecular Science, La Trobe University , Melbourne , Australia
| | - C J Jagaraj
- a Faculty of Medicine and Health Sciences, Department of Biomedical Sciences, Centre for MND Research , Macquarie University , Sydney , Australia
| | - A M G Ragagnin
- a Faculty of Medicine and Health Sciences, Department of Biomedical Sciences, Centre for MND Research , Macquarie University , Sydney , Australia
| | - J D Atkin
- a Faculty of Medicine and Health Sciences, Department of Biomedical Sciences, Centre for MND Research , Macquarie University , Sydney , Australia.,b Department of Biochemistry and Genetics , La Trobe Institute for Molecular Science, La Trobe University , Melbourne , Australia
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21
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Zalfa C, Rota Nodari L, Vacchi E, Gelati M, Profico D, Boido M, Binda E, De Filippis L, Copetti M, Garlatti V, Daniele P, Rosati J, De Luca A, Pinos F, Cajola L, Visioli A, Mazzini L, Vercelli A, Svelto M, Vescovi AL, Ferrari D. Transplantation of clinical-grade human neural stem cells reduces neuroinflammation, prolongs survival and delays disease progression in the SOD1 rats. Cell Death Dis 2019; 10:345. [PMID: 31024007 PMCID: PMC6484011 DOI: 10.1038/s41419-019-1582-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 03/26/2019] [Accepted: 03/29/2019] [Indexed: 12/13/2022]
Abstract
Stem cells are emerging as a therapeutic option for incurable diseases, such as Amyotrophic Lateral Sclerosis (ALS). However, critical issues are related to their origin as well as to the need to deepen our knowledge of the therapeutic actions exerted by these cells. Here, we investigate the therapeutic potential of clinical-grade human neural stem cells (hNSCs) that have been successfully used in a recently concluded phase I clinical trial for ALS patients (NCT01640067). The hNSCs were transplanted bilaterally into the anterior horns of the lumbar spinal cord (four grafts each, segments L3–L4) of superoxide dismutase 1 G93A transgenic rats (SOD1 rats) at the symptomatic stage. Controls included untreated SOD1 rats (CTRL) and those treated with HBSS (HBSS). Motor symptoms and histological hallmarks of the disease were evaluated at three progressive time points: 15 and 40 days after transplant (DAT), and end stage. Animals were treated by transient immunosuppression (for 15 days, starting at time of transplantation). Under these conditions, hNSCs integrated extensively within the cord, differentiated into neural phenotypes and migrated rostro-caudally, up to 3.77 ± 0.63 cm from the injection site. The transplanted cells delayed decreases in body weight and deterioration of motor performance in the SOD1 rats. At 40DAT, the anterior horns at L3–L4 revealed a higher density of motoneurons and fewer activated astroglial and microglial cells. Accordingly, the overall survival of transplanted rats was significantly enhanced with no rejection of hNSCs observed. We demonstrated that the beneficial effects observed after stem cell transplantation arises from multiple events that counteract several aspects of the disease, a crucial feature for multifactorial diseases, such as ALS. The combination of therapeutic approaches that target different pathogenic mechanisms of the disorder, including pharmacology, molecular therapy and cell transplantation, will increase the chances of a clinically successful therapy for ALS.
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Affiliation(s)
- Cristina Zalfa
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
| | - Laura Rota Nodari
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
| | - Elena Vacchi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
| | - Maurizio Gelati
- Fondazione IRCCS Casa Sollievo della Sofferenza, Production Unit of Advanced Therapies (UPTA), Institute for Stem-Cell Biology, Regenerative Medicine and Innovative Therapies (ISBReMIT), 71013, San Giovanni Rotondo, Foggia, Italy
| | - Daniela Profico
- Fondazione IRCCS Casa Sollievo della Sofferenza, Production Unit of Advanced Therapies (UPTA), Institute for Stem-Cell Biology, Regenerative Medicine and Innovative Therapies (ISBReMIT), 71013, San Giovanni Rotondo, Foggia, Italy
| | - Marina Boido
- Neuroscience Institute Cavalieri Ottolenghi, Department of Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy
| | - Elena Binda
- Fondazione IRCCS Casa Sollievo della Sofferenza, Cancer Stem Cells Unit, Institute for Stem-Cell Biology, Regenerative Medicine and Innovative Therapies (ISBReMIT), 71013, San Giovanni Rotondo, (FG), Italy
| | - Lidia De Filippis
- Fondazione IRCCS Casa Sollievo della Sofferenza, Regenerative Medicine and Innovative Therapies (ISBReMIT), 71013, San Giovanni Rotondo, (FG), Italy
| | - Massimiliano Copetti
- Fondazione IRCCS Casa Sollievo della Sofferenza, Bioinformatics Unit, Viale dei Cappuccini, 71013, San Giovanni Rotondo, (FG), Italy
| | - Valentina Garlatti
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
| | - Paola Daniele
- Fondazione IRCCS Casa Sollievo della Sofferenza, Molecular Genetics Unit, Viale dei Cappuccini, 71013, San Giovanni Rotondo, (FG), Italy
| | - Jessica Rosati
- Fondazione IRCCS Casa Sollievo della Sofferenza, Cellular Reprogramming Unit, San Giovanni Rotondo, (FG), Italy
| | - Alessandro De Luca
- Fondazione IRCCS Casa Sollievo della Sofferenza, Molecular Genetics Unit, Viale dei Cappuccini, 71013, San Giovanni Rotondo, (FG), Italy
| | - Francesca Pinos
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
| | - Laura Cajola
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy
| | | | - Letizia Mazzini
- Centro Regionale Esperto SLA Azienda Ospedaliero-Universitaria "Maggiore della Carità", Novara, Italy
| | - Alessandro Vercelli
- Neuroscience Institute Cavalieri Ottolenghi, Department of Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy
| | - Maria Svelto
- Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy
| | - Angelo Luigi Vescovi
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy. .,Fondazione IRCCS Casa Sollievo della Sofferenza, Production Unit of Advanced Therapies (UPTA), Institute for Stem-Cell Biology, Regenerative Medicine and Innovative Therapies (ISBReMIT), 71013, San Giovanni Rotondo, Foggia, Italy. .,Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari Aldo Moro, Bari, Italy.
| | - Daniela Ferrari
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza, 2, 20126, Milan, Italy.
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22
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Konopka A, Atkin JD. The Emerging Role of DNA Damage in the Pathogenesis of the C9orf72 Repeat Expansion in Amyotrophic Lateral Sclerosis. Int J Mol Sci 2018; 19:ijms19103137. [PMID: 30322030 PMCID: PMC6213462 DOI: 10.3390/ijms19103137] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/09/2018] [Accepted: 10/09/2018] [Indexed: 02/07/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal, rapidly progressing neurodegenerative disease affecting motor neurons, and frontotemporal dementia (FTD) is a behavioural disorder resulting in early-onset dementia. Hexanucleotide (G4C2) repeat expansions in the gene encoding chromosome 9 open reading frame 72 (C9orf72) are the major cause of familial forms of both ALS (~40%) and FTD (~20%) worldwide. The C9orf72 repeat expansion is known to form abnormal nuclei acid structures, such as hairpins, G-quadruplexes, and R-loops, which are increasingly associated with human diseases involving microsatellite repeats. These configurations form during normal cellular processes, but if they persist they also damage DNA, and hence are a serious threat to genome integrity. It is unclear how the repeat expansion in C9orf72 causes ALS, but recent evidence implicates DNA damage in neurodegeneration. This may arise from abnormal nucleic acid structures, the greatly expanded C9orf72 RNA, or by repeat-associated non-ATG (RAN) translation, which generates toxic dipeptide repeat proteins. In this review, we detail recent advances implicating DNA damage in C9orf72-ALS. Furthermore, we also discuss increasing evidence that targeting these aberrant C9orf72 confirmations may have therapeutic value for ALS, thus revealing new avenues for drug discovery for this disorder.
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Affiliation(s)
- Anna Konopka
- Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Macquarie University, Sydney, NSW 2109, Australia.
| | - Julie D Atkin
- Centre for MND Research, Department of Biomedical Sciences, Faculty of Medicine & Health Sciences, Macquarie University, Sydney, NSW 2109, Australia.
- La Trobe Institute for Molecular Science, Melbourne, VIC 3086, Australia.
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23
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Zhang J, Huang P, Wu C, Liang H, Li Y, Zhu L, Lu Y, Tang C, Xu R. Preliminary Observation about Alteration of Proteins and Their Potential Functions in Spinal Cord of SOD1 G93A Transgenic Mice. Int J Biol Sci 2018; 14:1306-1320. [PMID: 30123078 PMCID: PMC6097476 DOI: 10.7150/ijbs.26829] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 06/22/2018] [Indexed: 12/12/2022] Open
Abstract
The protein abnormality participates in the development of ALS that meets with the widespread approval from major researchers. However, these currently found abnormal proteins aren't far enough to explain all pathogenesis of ALS. Therefore, the search of novel abnormal proteins participated in the pathogenesis of ALS is very necessary. In this study, we screened, compared and analyzed the differentially expressed proteins in the spinal cord of the SOD1 G93A transgenic and wild-type (WT) mice applying the isobaric tags for relative and absolute quantitation (iTRAQ) and the bioinformatics methods. The results revealed the details of significantly differentially expressed proteins between the SOD1 G93A transgenic and WT mice, and the damaged and/or regulated cellular components, molecular functions and biological processes and the significant enrichment pathways of these proteins. Our study comprehensively described the details of the possible abnormal proteins participated in the pathogenesis of SOD1 G93A transgenic mice, extensively explored their possible molecular mechanisms how to play the role in the development in this animal model, and provided some evidences and clues for further and deeply studying the relationship between the abnormal proteins and the pathogenesis of ALS in the other animal models and ALS patients.
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Affiliation(s)
- Jie Zhang
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Ping Huang
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China.,Department of Nutrition, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Chengsi Wu
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Huiting Liang
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Yue Li
- Department of Health Statistics, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Lei Zhu
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Yi Lu
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Chunyan Tang
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Renshi Xu
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
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24
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Prior H, MacConnachie L, Martinez JL, Nicholl GCB, Beg AA. A Rapid and Facile Pipeline for Generating Genomic Point Mutants in C. elegans Using CRISPR/Cas9 Ribonucleoproteins. J Vis Exp 2018:57518. [PMID: 29757293 PMCID: PMC6101052 DOI: 10.3791/57518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
The clustered regularly interspersed palindromic repeats (CRISPR)-CRISPR-associated protein 9 (Cas9) prokaryotic adaptive immune defense system has been co-opted as a powerful tool for precise eukaryotic genome engineering. Here, we present a rapid and simple method using chimeric single guide RNAs (sgRNA) and CRISPR-Cas9 Ribonucleoproteins (RNPs) for the efficient and precise generation of genomic point mutations in C. elegans. We describe a pipeline for sgRNA target selection, homology-directed repair (HDR) template design, CRISPR-Cas9-RNP complexing and delivery, and a genotyping strategy that enables the robust and rapid identification of correctly edited animals. Our approach not only permits the facile generation and identification of desired genomic point mutant animals, but also facilitates the detection of other complex indel alleles in approximately 4 - 5 days with high efficiency and a reduced screening workload.
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Affiliation(s)
| | | | | | | | - Asim A Beg
- Department of Pharmacology, University of Michigan;
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25
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C9orf72-associated neurodegeneration in ALS-FTD: breaking new ground in ribosomal RNA and nucleolar dysfunction. Cell Tissue Res 2018; 373:351-360. [PMID: 29450726 DOI: 10.1007/s00441-018-2806-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 01/23/2018] [Indexed: 12/13/2022]
Abstract
Amyotrophic lateral sclerosis (ALS) and frontotemporal degeneration (FTD) are neurodegenerative diseases with distinct clinical appearance. However, both share as major genetic risk factor a C9orf72 locus intronic hexanucleotide expansion. The pathogenic pathways associated with the expansion-dependent neuronal toxicity are still poorly understood. Recent efforts to identify common threads of neuronal dysfunction have pointed towards deficits of ribosomal RNA (rRNA) biogenesis and loss of nucleolar integrity, a condition known as nucleolar stress that is an emerging shared feature among neurodegenerative diseases. Intriguingly, the C9orf72 mutation in ALS-FTD interferes with the function of the nucleolus by transcripts and dipeptide repeats (DPRs) produced by the hexanucleotide expansion. Experimental discrepancies have given rise to different hypotheses with regard to the connection of C9orf72 and nucleolar activity. In this review, we present and discuss emerging concepts concerning the impact of C9orf72 expansion on nucleolar biology. Moreover, we discuss the "nucleolar stress hypothesis," according to which nucleolar malfunction accompanies, exacerbates, or potentially triggers a degenerative phenotype. Upcoming awareness of the involvement of nucleolar stress in C9orf72 ALS-FTD could shed light into its pathogenesis, enabling potential treatment options aimed at shielding an "Achilles' heel" of neurons.
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26
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Peter RS, Rosenbohm A, Dupuis L, Brehme T, Kassubek J, Rothenbacher D, Nagel G, Ludolph AC. Life course body mass index and risk and prognosis of amyotrophic lateral sclerosis: results from the ALS registry Swabia. Eur J Epidemiol 2017; 32:901-908. [PMID: 28975435 DOI: 10.1007/s10654-017-0318-z] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 09/23/2017] [Indexed: 12/12/2022]
Abstract
Weight loss appears as a strong predictor of survival of patients with amyotrophic lateral sclerosis, yet no data are currently available to describe the life course history of pre-diagnostic body mass index (BMI) in these patients. 393 ALS cases (mean age: 65.8 years, 57.3% men) and 791 controls matched by age and sex from a population-based case-control study of the ALS Registry Swabia were analyzed. Differences of BMI change in cases and controls over time were modeled using a multilevel additive model. In addition, survival in ALS cases by BMI change was modeled using an accelerated failure time model adjusted for prognostic factors. In ALS cases, BMI was consistently higher than in controls in the 20-70 years before the interview. Conditional logistic regression revealed an odds ratio of 1.05 (95% confidence interval (CI) 1.00-1.11, p = 0.041) per 1 kg/m2 higher BMI 35-45 years before interview. However, a sharp decrease was evident in the BMI of ALS cases about 10 years before disease onset. Moreover, weight loss was strongly associated with shorter survival in ALS patients. Illustrating this, patients with stable weight showed a median survival time of 22.1 (95%-CI 19.2-25.0) months, as compared to 13.4 (95%-CI 10.5-16.3) months for patients with weight loss of 2.5 kg/m2 over the last 3 months before the interview. Thus, alterations in body weight are present in ALS patients already decades before clinical manifestation of ALS, while weight loss precedes motor symptoms of several years and is associated with poor prognosis.
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Affiliation(s)
- Raphael Simon Peter
- Institute of Epidemiology and Medical Biometry, Ulm University, Helmholtzstr. 22, 89081, Ulm, Germany.
| | | | - Luc Dupuis
- INSERM U1118, Université de Strasbourg, Strasbourg, France
| | - Torben Brehme
- Institute of Epidemiology and Medical Biometry, Ulm University, Helmholtzstr. 22, 89081, Ulm, Germany
| | - Jan Kassubek
- Department of Neurology, Ulm University, Ulm, Germany
| | - Dietrich Rothenbacher
- Institute of Epidemiology and Medical Biometry, Ulm University, Helmholtzstr. 22, 89081, Ulm, Germany
| | - Gabriele Nagel
- Institute of Epidemiology and Medical Biometry, Ulm University, Helmholtzstr. 22, 89081, Ulm, Germany
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27
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Wang MD, Little J, Gomes J, Cashman NR, Krewski D. Identification of risk factors associated with onset and progression of amyotrophic lateral sclerosis using systematic review and meta-analysis. Neurotoxicology 2017; 61:101-130. [DOI: 10.1016/j.neuro.2016.06.015] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 06/29/2016] [Indexed: 12/11/2022]
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28
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Nagel G, Peter RS, Rosenbohm A, Koenig W, Dupuis L, Rothenbacher D, Ludolph AC. Adipokines, C-reactive protein and Amyotrophic Lateral Sclerosis - results from a population- based ALS registry in Germany. Sci Rep 2017; 7:4374. [PMID: 28663573 PMCID: PMC5491500 DOI: 10.1038/s41598-017-04706-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 04/19/2017] [Indexed: 12/12/2022] Open
Abstract
To investigate the associations of leptin, adiponectin and high-sensitive (hs) C-reactive protein (CRP) with risk and prognosis of amyotrophic lateral sclerosis (ALS). Data from a population-based case-control study in Southern Germany (10/2010–6/2014) of 289 ALS patients (mean age of 65.7 (SD 10.5) years, 59.5% men) and 506 controls were included. During median follow-up of 14.5 months of 279 ALS patients 104 (53.9% men, 68.9 (10.3) years) died. Serum samples were measured for leptin, adiponectin and hs-CRP. Conditional logistic regression was used to estimate ALS risk. Survival models were used to appraise the prognostic value. ALS patients were characterized by lower levels of school education, BMI and smoking prevalence. Adjusted for covariates, leptin was inversely associated with ALS risk (top vs. bottom quartile: OR 0.49; 95% CI 0.29–0.80), while for adiponectin a positive association was found (OR 2.89; 95% CI 1.78–4.68). Among ALS patients increasing leptin concentrations were associated with longer survival (p for trend 0.002), while for adiponectin no association was found (p for trend 0.55). For hs-CRP no association was found. Leptin and adiponectin, two key hormones regulating energy metabolism, were strongly and independently related with ALS risk. Leptin levels were further negatively related with overall survival of ALS patients.
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Affiliation(s)
- Gabriele Nagel
- Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany.
| | - Raphael S Peter
- Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
| | | | - Wolfgang Koenig
- Department of Internal Medicine II - Cardiology, University of Ulm Medical Centre, Ulm, Germany.,Deutsches Herzzentrum München, Technische Universität München, Munich, Germany.,DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart Alliance, Munich, Germany
| | - Luc Dupuis
- INSERM U1118, Université de Strasbourg, Strasbourg, France
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29
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Lange DJ, Shahbazi M, Silani V, Ludolph AC, Weishaupt JH, Ajroud-Driss S, Fields KG, Remanan R, Appel SH, Morelli C, Doretti A, Maderna L, Messina S, Weiland U, Marklund SL, Andersen PM. Pyrimethamine significantly lowers cerebrospinal fluid Cu/Zn superoxide dismutase in amyotrophic lateral sclerosis patients with SOD1 mutations. Ann Neurol 2017; 81:837-848. [PMID: 28480639 PMCID: PMC5518287 DOI: 10.1002/ana.24950] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 04/30/2017] [Accepted: 05/01/2017] [Indexed: 12/13/2022]
Abstract
Objective Cu/Zn superoxide dismutase (SOD1) reduction prolongs survival in SOD1‐transgenic animal models. Pyrimethamine produces dose‐dependent SOD1 reduction in cell culture systems. A previous phase 1 trial showed pyrimethamine lowers SOD1 levels in leukocytes in patients with SOD1 mutations. This study investigated whether pyrimethamine lowered SOD1 levels in the cerebrospinal fluid (CSF) in patients carrying SOD1 mutations linked to familial amyotrophic lateral sclerosis (fALS/SOD1). Methods A multicenter (5 sites), open‐label, 9‐month‐duration, dose‐ranging study was undertaken to determine the safety and efficacy of pyrimethamine to lower SOD1 levels in the CSF in fALS/SOD1. All participants underwent 3 lumbar punctures, blood draw, clinical assessment of strength, motor function, quality of life, and adverse effect assessments. SOD1 levels were measured in erythrocytes and CSF. Pyrimethamine was measured in plasma and CSF. Appel ALS score, ALS Functional Rating Scale–Revised, and McGill Quality of Life Single‐Item Scale were measured at screening, visit 6, and visit 9. Results We enrolled 32 patients; 24 completed 6 visits (18 weeks), and 21 completed all study visits. A linear mixed effects model showed a significant reduction in CSF SOD1 at visit 6 (p < 0.001) with a mean reduction of 13.5% (95% confidence interval [CI] = 8.4–18.5) and at visit 9 (p < 0.001) with a mean reduction of 10.5% (95% CI = 5.2–15.8). Interpretation Pyrimethamine is safe and well tolerated in ALS. Pyrimethamine is capable of producing a significant reduction in total CSF SOD1 protein content in patients with ALS caused by different SOD1 mutations. Further long‐term studies are warranted to assess clinical efficacy. Ann Neurol 2017;81:837–848
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Affiliation(s)
- Dale J Lange
- Department of Neurology, Hospital for Special Surgery/Weill Cornell Medicine, New York, NY
| | - Mona Shahbazi
- Department of Neurology, Hospital for Special Surgery/Weill Cornell Medicine, New York, NY
| | - Vincenzo Silani
- Department of Neurology and Laboratory Neuroscience, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Italian Auxological Institute, Milan, Italy.,Department of Pathophysiology and Transplantation, Dino Ferrari Center, University of Milan, Milan, Italy
| | | | | | | | - Kara G Fields
- Hospital for Special Surgery Healthcare Research Institute, New York, NY
| | - Rahul Remanan
- Department of Neurology, Hospital for Special Surgery/Weill Cornell Medicine, New York, NY
| | | | - Claudia Morelli
- Department of Neurology and Laboratory Neuroscience, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Italian Auxological Institute, Milan, Italy
| | - Alberto Doretti
- Department of Neurology and Laboratory Neuroscience, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Italian Auxological Institute, Milan, Italy
| | - Luca Maderna
- Department of Neurology and Laboratory Neuroscience, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Italian Auxological Institute, Milan, Italy
| | - Stefano Messina
- Department of Neurology and Laboratory Neuroscience, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Italian Auxological Institute, Milan, Italy
| | | | | | - Peter M Andersen
- Department of Neurology, Ulm University, Ulm, Germany.,Pharmacology and Clinical Neuroscience, Umeå University, Umeå, Sweden
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30
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Liang H, Wu C, Deng Y, Zhu L, Zhang J, Gan W, Tang C, Xu R. Aldehyde Dehydrogenases 1A2 Expression and Distribution are Potentially Associated with Neuron Death in Spinal Cord of Tg(SOD1*G93A)1Gur Mice. Int J Biol Sci 2017; 13:574-587. [PMID: 28539831 PMCID: PMC5441175 DOI: 10.7150/ijbs.19150] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 02/20/2017] [Indexed: 12/11/2022] Open
Abstract
The pathogenesis of amyotrophic lateral sclerosis (ALS) has not been unclear yet, it might be associated with the abnormal expression and distribution of certain proteins. Aldehyde dehydrogenases 1A2 (ALDH1A2) was thought to be one of potential candidates. Therefore, in this study we observed and analyzed the alteration of the expression and distribution of ALDH1A2 in the spinal cord of wild-type (WT) and Tg(SOD1*G93A)1Gur mice. We compared the expression and distribution of ALDH1A2 in the different segments, anatomic regions and neural cells of spinal cord at the different stages of WT and Tg(SOD1*G93A)1Gur mice applied the methods of fluorescent immunohistochemistry and western blot. Results revealed that ALDH1A2 extensively expressed and distributed in the spinal cord of adult WT and Tg(SOD1*G93A)1Gur mice. The expression and distribution of ALDH1A2 in the white matter including the anterior, posterior and lateral funiculus were more than that in the gray matter including the central canal, the anterior and dorsal horn. ALDH1A2 majorly expressed and distributed in the astrocyte, microglial, oligodendrocyte and neuron cells. The ALDH1A2 expression significantly decreased and redistributed in some anatomic regions of spinal cord at the onset and progression stages of Tg(SOD1*G93A)1Gur mice. The expression decrease of ALDH1A2 followed with the increase of neuron cells death. This study suggested that the alteration of expression and distribution of ALDH1A2 was potentially associated with the pathogenesis of ALS.
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Affiliation(s)
- Huiting Liang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Chengsi Wu
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Youqing Deng
- Department of Neurology, Third Affiliated Hospital of Nanchang University, Nanchang 330008, Jiangxi, China
| | - Lei Zhu
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Jie Zhang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Weiming Gan
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Chunyan Tang
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Renshi Xu
- Department of Neurology, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
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31
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Zhang J, Liang H, Zhu L, Gan W, Tang C, Li J, Xu R. Expression and Distribution of Arylsulfatase B are Closely Associated with Neuron Death in SOD1 G93A Transgenic Mice. Mol Neurobiol 2017; 55:1323-1337. [PMID: 28124772 DOI: 10.1007/s12035-017-0406-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 01/12/2017] [Indexed: 12/11/2022]
Abstract
The known proteins only explained the partial pathogenesis of amyotrophic lateral sclerosis (ALS). Therefore, this study aimed to search the novel proteins possibly involved in ALS. In this study, we analyzed the expression and distribution of the candidate protein arylsulfatase B (ARSB) in the different segments, anatomic regions, and neural cells of spinal cord at the different stages of the wild-type and [Cu/Zn] superoxide dismutase 1 (SOD1) G93A transgenic mice using the fluorescent immunohistochemistry and the western blot. The results revealed that the ARSB was extensively expressed and distributed in the entire spinal cord; the expression and distribution of ARSB was significantly different in the different regions of spinal cord, the anterior horn of gray matter (AHGM) was significantly more than that in the posterior horn of gray matter (PHGM) and significantly more than that in the central canal, and ARSB was mainly distributed in the microglia and neuron cells in the wild-type mice. The expression of ARSB significantly increased in other anatomic regions besides the thoracic PHGM, significantly decreased at the progression stage, occurred in the redistribution from the AHGM and the PHGM to the central canal at the onset and progression stages, and no any alteration of ARSB expression and distribution occurred between the different neural cells in the SOD1 G93A mice compared with the wild-type mice. The increase of ARSB expression and distribution followed with the increased of neuron death. Our data suggested that the abnormal expression and distribution of ARSB were closely associated with the neuron death in the SOD1 G93A transgenic mice.
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Affiliation(s)
- Jie Zhang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Huiting Liang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Lei Zhu
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Weiming Gan
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Chunyan Tang
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Jiao Li
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China
| | - Renshi Xu
- Department of Neurology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, 330006, China.
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Nizzardo M, Rizzuti M. Intracerebroventricular Delivery in Mice for Motor Neuron Diseases. Methods Mol Biol 2017; 1565:229-239. [PMID: 28364247 DOI: 10.1007/978-1-4939-6817-6_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The use of antisense oligonucleotides to target specific mRNA sequences represents a promising therapeutic strategy for neurological disorders. Recent advances in antisense technology enclose the development of phosphorodiamidate morpholino oligomers (MO), which is one of the best candidates for molecular therapies due to MO's excellent pharmacological profile.Nevertheless, the route of administration of antisense compounds represents a critical issue in the neurological field. Particularly, as regards motor neuron diseases, intracerebroventricular (ICV) injection is undoubtedly the most efficient procedure to directly deliver therapeutic molecules in the central nervous system (CNS). Indeed, we recently demonstrated the outstanding efficacy of the MO antisense approach by its direct administration to CNS of the transgenic mouse models of Spinal Muscular Atrophy (SMA) and Amyotrophic Lateral Sclerosis (ALS).Here, we describe methods to perform the ICV delivery of MO in neonatal SMA mice and in adult ALS mice.
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Affiliation(s)
- M Nizzardo
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, and Neurology Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, 20122, Milan, Italy.
| | - M Rizzuti
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, and Neurology Unit, IRCCS Foundation Ca' Granda, Ospedale Maggiore Policlinico, 20122, Milan, Italy
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Jimenez-Pacheco A, Franco JM, Lopez S, Gomez-Zumaquero JM, Magdalena Leal-Lasarte M, Caballero-Hernandez DE, Cejudo-Guillén M, Pozo D. Epigenetic Mechanisms of Gene Regulation in Amyotrophic Lateral Sclerosis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 978:255-275. [DOI: 10.1007/978-3-319-53889-1_14] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Li J, Lu Y, Liang H, Tang C, Zhu L, Zhang J, Xu R. Changes in the Expression of FUS/TLS in Spinal Cords of SOD1 G93A Transgenic Mice and Correlation with Motor-Neuron Degeneration. Int J Biol Sci 2016; 12:1181-1190. [PMID: 27766033 PMCID: PMC5069440 DOI: 10.7150/ijbs.16158] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/14/2016] [Indexed: 12/12/2022] Open
Abstract
In order to searching the possible pathogenesis of amyotrophic lateral sclerosis (ALS), we examined the expression and distribution of FUS/TLS protein in the different anatomic regions, segments and neural cells of adult spinal cord at the different stages of the SOD1 wild-type and G93A transgenic mice using the fluorescent immunohistochemistry. Result revealed that, in the SOD1 wild-type mice, the FUS/TLS expression almost wasn't detected. However, in the SOD1 G93A mice, the FUS/TLS expression in the white matter was significantly more than that in the gray matter. In the white matter, the FUS/TLS expression in the anterior funiculus was more than that in the lateral funiculus more than that in the posterior funiculus. In the gray matter, the FUS/TLS expression in the ventral horn was more than that surrounding the central canal more than that in the dorsal horn. The FUS/TLS expression in the thoracic segment was more than that in the cervical segment more than that in the lumbar segment. Almost all FUS/TLS expressed in the nuclear of the GFAP positive cell at the onset stage, but it expressed in both the nuclear and the cytoplasm of the GFAP positive cell at the progression stage, almost didn't detected FUS/TLS expression in the NeuN and Oligo positive cells. The FUS/TLS expression was positively correlated with the neuron death. Our data suggested that the expressive increase and mislocalization of FUS/TLS in the astrocyte cell might cause the motor neuron degenerative death in the SOD1 G93A transgenic mice.
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Affiliation(s)
- Jiao Li
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Yi Lu
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Huiting Liang
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Chunyan Tang
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Lei Zhu
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
| | - Jie Zhang
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China.; Department of Biochemistry and Molecular Biology, College of Basic Medical Science, Nanchang University, Nanchang 330006, Jiangxi, China
| | - Renshi Xu
- Department of Neurology, the First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi, China
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Burberry A, Suzuki N, Wang JY, Moccia R, Mordes DA, Stewart MH, Suzuki-Uematsu S, Ghosh S, Singh A, Merkle FT, Koszka K, Li QZ, Zon L, Rossi DJ, Trowbridge JJ, Notarangelo LD, Eggan K. Loss-of-function mutations in the C9ORF72 mouse ortholog cause fatal autoimmune disease. Sci Transl Med 2016; 8:347ra93. [PMID: 27412785 PMCID: PMC5024536 DOI: 10.1126/scitranslmed.aaf6038] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 06/21/2016] [Indexed: 12/14/2022]
Abstract
C9ORF72 mutations are found in a significant fraction of patients suffering from amyotrophic lateral sclerosis and frontotemporal dementia, yet the function of the C9ORF72 gene product remains poorly understood. We show that mice harboring loss-of-function mutations in the ortholog of C9ORF72 develop splenomegaly, neutrophilia, thrombocytopenia, increased expression of inflammatory cytokines, and severe autoimmunity, ultimately leading to a high mortality rate. Transplantation of mutant mouse bone marrow into wild-type recipients was sufficient to recapitulate the phenotypes observed in the mutant animals, including autoimmunity and premature mortality. Reciprocally, transplantation of wild-type mouse bone marrow into mutant mice improved their phenotype. We conclude that C9ORF72 serves an important function within the hematopoietic system to restrict inflammation and the development of autoimmunity.
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Affiliation(s)
- Aaron Burberry
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Naoki Suzuki
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Jin-Yuan Wang
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Rob Moccia
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Daniel A Mordes
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA. Department of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Morag H Stewart
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Program in Cellular and Molecular Medicine, Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Satomi Suzuki-Uematsu
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Sulagna Ghosh
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Ajay Singh
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Florian T Merkle
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Kathryn Koszka
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Quan-Zhen Li
- Departments of Immunology and Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Leonard Zon
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Harvard Medical School, Boston, MA 02115, USA
| | - Derrick J Rossi
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Program in Cellular and Molecular Medicine, Division of Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA. Harvard Medical School, Boston, MA 02115, USA
| | | | - Luigi D Notarangelo
- Harvard Medical School, Boston, MA 02115, USA. Division of Immunology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Kevin Eggan
- Harvard Stem Cell Institute, Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA 02138, USA. Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA.
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Nizzardo M, Simone C, Rizzo F, Ulzi G, Ramirez A, Rizzuti M, Bordoni A, Bucchia M, Gatti S, Bresolin N, Comi GP, Corti S. Morpholino-mediated SOD1 reduction ameliorates an amyotrophic lateral sclerosis disease phenotype. Sci Rep 2016; 6:21301. [PMID: 26878886 PMCID: PMC4754711 DOI: 10.1038/srep21301] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 01/21/2016] [Indexed: 01/07/2023] Open
Abstract
Neurotoxicity due to the accumulation of mutant proteins is thought to drive pathogenesis in neurodegenerative diseases. Mutations in superoxide dismutase 1 (SOD1) are linked to familial amyotrophic lateral sclerosis (fALS); these mutations result in progressive motor neuron death through one or more acquired toxicities. Interestingly, SOD1 is not only responsible for fALS but may also play a significant role in sporadic ALS; therefore, SOD1 represents a promising therapeutic target. Here, we report slowed disease progression, improved neuromuscular function, and increased survival in an in vivo ALS model following therapeutic delivery of morpholino oligonucleotides (MOs) designed to reduce the synthesis of human SOD1. Neuropathological analysis demonstrated increased motor neuron and axon numbers and a remarkable reduction in astrogliosis and microgliosis. To test this strategy in a human model, we treated human fALS induced pluripotent stem cell (iPSC)-derived motor neurons with MOs; these cells exhibited increased survival and reduced expression of apoptotic markers. Our data demonstrated the efficacy of MO-mediated therapy in mouse and human ALS models, setting the stage for human clinical trials.
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Affiliation(s)
- M. Nizzardo
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - C. Simone
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - F. Rizzo
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - G. Ulzi
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - A. Ramirez
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - M. Rizzuti
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - A. Bordoni
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - M. Bucchia
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - S. Gatti
- Centro di Ricerche Chirurgiche Precliniche, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico; Department of Pathophysiology and Transplantation (DEPT), University of Milan, 20122 Milano, Italy
| | - N. Bresolin
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - G. P. Comi
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - S. Corti
- Dino Ferrari Centre, Neuroscience Section, Department of Pathophysiology and Transplantation (DEPT), University of Milan, Neurology Unit, IRCCS Foundation Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
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Lack of association between the Angiogenin (ANG) rs11701 polymorphism and amyotrophic lateral sclerosis risk: a meta-analysis. Neurol Sci 2016; 37:655-62. [DOI: 10.1007/s10072-015-2473-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 12/29/2015] [Indexed: 12/12/2022]
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Caballero-Hernandez D, Toscano MG, Cejudo-Guillen M, Garcia-Martin ML, Lopez S, Franco JM, Quintana FJ, Roodveldt C, Pozo D. The ‘Omics’ of Amyotrophic Lateral Sclerosis. Trends Mol Med 2016; 22:53-67. [DOI: 10.1016/j.molmed.2015.11.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 10/29/2015] [Accepted: 11/08/2015] [Indexed: 12/11/2022]
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Tactile event-related potentials in amyotrophic lateral sclerosis (ALS): Implications for brain-computer interface. Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2015.06.029] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Shimada K, Fujii T, Tatsumi Y, Anai S, Fujimoto K, Konishi N. Ubiquilin2 as a novel marker for detection of urothelial carcinoma cells in urine. Diagn Cytopathol 2015; 44:3-9. [PMID: 26303000 DOI: 10.1002/dc.23332] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/23/2015] [Accepted: 08/05/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND Ubiquilin 2 (UBQLN2), an ubiquitin-related protein, is strongly expressed in urothelial carcinoma cells, in contrast to no or less expression in non-neoplastic cells; it protects cancer cells from reactive oxygen species (ROS)-induced cytotoxicity. In this study, we investigated whether UBQLN2 immunostaining, using liquid-based cytology sample could improve the accuracy of cytological urine diagnosis. METHODS Two-hundred and forty-five urinary samples, including 143 negative controls and 102 urothelial carcinomas, consisting of 42 low-grade and 60 high-grade urothelial carcinomas, were used for immunocytochemical analysis of UBQLN2. RESULTS Urothelial carcinoma cells were positive for UBQLN2-staining, while non-neoplastic cells, including renal tubular cells and degenerative atypical cells, were negative. Interestingly, percentage of nuclear stain immunopositive for UBQLN2 was significantly higher in carcinoma cells with high grade/invasive phenotype than in those with low grade/noninvasive phenotype. UBQLN2 immunostaining had an overall sensitivity of 87.6%, specificity of 98.6%, positive predictive value of 97.8% and negative predictive value of 92.8% for the detection of urothelial carcinoma. CONCLUSIONS UBQLN2 immunostaining is a practical test for urine cytology, even in samples with few cells, with slight atypia or severe degenerative changes. In addition, it allows prediction of tumor grade and stage by examining the cellular localization of UBQLN2.
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Affiliation(s)
- Keiji Shimada
- Department of Pathology, Nara Medical University School of Medicine, 840 Shijo-Cho, Kashihara City, Nara, 634-8521, Japan
| | - Tomomi Fujii
- Department of Pathology, Nara Medical University School of Medicine, 840 Shijo-Cho, Kashihara City, Nara, 634-8521, Japan
| | - Yoshihiro Tatsumi
- Department of Pathology, Nara Medical University School of Medicine, 840 Shijo-Cho, Kashihara City, Nara, 634-8521, Japan
| | - Satoshi Anai
- Department of Urology, Nara Medical University School of Medicine, 840 Shijo-Cho, Kashihara City, Nara, 634-8521, Japan
| | - Kiyohide Fujimoto
- Department of Urology, Nara Medical University School of Medicine, 840 Shijo-Cho, Kashihara City, Nara, 634-8521, Japan
| | - Noboru Konishi
- Department of Pathology, Nara Medical University School of Medicine, 840 Shijo-Cho, Kashihara City, Nara, 634-8521, Japan
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Hübers A, Just W, Rosenbohm A, Müller K, Marroquin N, Goebel I, Högel J, Thiele H, Altmüller J, Nürnberg P, Weishaupt JH, Kubisch C, Ludolph AC, Volk AE. De novo FUS mutations are the most frequent genetic cause in early-onset German ALS patients. Neurobiol Aging 2015; 36:3117.e1-3117.e6. [PMID: 26362943 DOI: 10.1016/j.neurobiolaging.2015.08.005] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 07/15/2015] [Accepted: 08/08/2015] [Indexed: 01/27/2023]
Abstract
In amyotrophic lateral sclerosis (ALS) patients with known genetic cause, mutations in chromosome 9 open reading frame 72 (C9orf72) and superoxide dismutase 1 (SOD1) account for most familial and late-onset sporadic cases, whereas mutations in fused in sarcoma (FUS) can be identified in just around 5% of familial and 1% of overall sporadic cases. There are only few reports on de novo FUS mutations in juvenile ALS patients. To date, no systematic evaluation on the frequency of de novo FUS mutations in early-onset ALS patients has been conducted. Here, we screened a cohort of 14 early-onset sporadic ALS patients (onset age <35 years) to determine the frequency of mutations in C9orf72, SOD1, and FUS in this defined patient cohort. All patients were recruited prospectively by a single center in a period of 38 months. No mutations were detected in SOD1 or C9orf72; however, we identified 6 individuals (43%) carrying a heterozygous FUS mutation including 1 mutation that has not been described earlier (c.1504delG [p.Asp502Thrfs*27]). Genetic testing of parents was possible in 5 families and revealed that the mutations in these patients arose de novo. Three of the 6 identified patients presented with initial bulbar symptoms. Our study identifies FUS mutations as the most frequent genetic cause in early-onset ALS. Genetic testing of FUS thus seems indicated in sporadic early-onset ALS patients especially if showing predominant bulbar symptoms and an aggressive disease course.
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Affiliation(s)
- Annemarie Hübers
- Department of Neurology, University Hospital of Ulm, Ulm, Germany.
| | - Walter Just
- Institute of Human Genetics, University of Ulm, Ulm, Germany
| | - Angela Rosenbohm
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - Kathrin Müller
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | | | - Ingrid Goebel
- Institute of Human Genetics, University of Ulm, Ulm, Germany; Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Josef Högel
- Institute of Human Genetics, University of Ulm, Ulm, Germany
| | - Holger Thiele
- Cologne Center for Genomics (CCG), University of Cologne, Cologne, Germany
| | - Janine Altmüller
- Cologne Center for Genomics (CCG), University of Cologne, Cologne, Germany; Institute of Human Genetics, University of Cologne, Cologne, Germany
| | - Peter Nürnberg
- Cologne Center for Genomics (CCG), University of Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne, Germany
| | | | - Christian Kubisch
- Institute of Human Genetics, University of Ulm, Ulm, Germany; Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Albert C Ludolph
- Department of Neurology, University Hospital of Ulm, Ulm, Germany
| | - Alexander E Volk
- Institute of Human Genetics, University of Ulm, Ulm, Germany; Institute of Human Genetics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Huang R, Guo X, Chen X, Zheng Z, Wei Q, Cao B, Zeng Y, Shang H. The serum lipid profiles of amyotrophic lateral sclerosis patients: A study from south-west China and a meta-analysis. Amyotroph Lateral Scler Frontotemporal Degener 2015; 16:359-65. [PMID: 26121273 DOI: 10.3109/21678421.2015.1047454] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Associations between the fasting levels of serum lipid and amyotrophic lateral sclerosis (ALS) in Chinese populations remain largely unknown. Our objective was to analyse data from a cohort of ALS patients to determine these associations. Four hundred and thirteen ALS patients and 400 age- and gender-matched healthy controls were included. Fasting serum lipid concentration of all subjects, including total cholesterol, low-density lipoprotein (LDL-C), high-density lipoprotein (HDL-C) and triglyceride (TG), were measured at the time of first visit. The revised ALS Functional Rating Scale (ALSFRS-R) was used to assess the severity of ALS. Systems Analysis by Review Manager 5 was used to evaluate differences in dyslipidaemia between ALS patients and controls. Results showed that ALS patients with higher triglyceride levels had longer survival time compared to patients with lower triglyceride levels (p < 0.05). We found a median prolonged life expectancy of 5.8 months for patients with serum triglyceride levels above the median of 127.5 mg/dl. Cox regression analysis indicated that disease duration and age were positively correlated with death, and triglyceride was positively correlated with survival. A meta-analysis indicated that there were no significant differences in mean total cholesterol, TG, LDL or the LDL/HDL ratio between patients and controls. In conclusion, high serum TG might be a protective factor for the survival of patients with ALS.
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Affiliation(s)
- Rui Huang
- a Department of Neurology , West China Hospital, Sichuan University , Chengdu Sichuan , China.,b Department of Neurology , Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital Chengdu Sichuan , China
| | - Xiaoyan Guo
- a Department of Neurology , West China Hospital, Sichuan University , Chengdu Sichuan , China
| | - Xueping Chen
- a Department of Neurology , West China Hospital, Sichuan University , Chengdu Sichuan , China
| | - Zhenzhen Zheng
- a Department of Neurology , West China Hospital, Sichuan University , Chengdu Sichuan , China
| | - Qianqian Wei
- a Department of Neurology , West China Hospital, Sichuan University , Chengdu Sichuan , China
| | - Bei Cao
- a Department of Neurology , West China Hospital, Sichuan University , Chengdu Sichuan , China
| | - Yan Zeng
- a Department of Neurology , West China Hospital, Sichuan University , Chengdu Sichuan , China
| | - Huifang Shang
- a Department of Neurology , West China Hospital, Sichuan University , Chengdu Sichuan , China
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Heiman-Patterson TD, Blankenhorn EP, Sher RB, Jiang J, Welsh P, Dixon MC, Jeffrey JI, Wong P, Cox GA, Alexander GM. Genetic background effects on disease onset and lifespan of the mutant dynactin p150Glued mouse model of motor neuron disease. PLoS One 2015; 10:e0117848. [PMID: 25763819 PMCID: PMC4357475 DOI: 10.1371/journal.pone.0117848] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 01/02/2015] [Indexed: 12/13/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease primarily affecting motor neurons in the central nervous system. Although most cases of ALS are sporadic, about 5–10% of cases are familial (FALS) with approximately 20% of FALS caused by mutations in the Cu/Zn superoxide dismutase (SOD1) gene. We have reported that hSOD1-G93A transgenic mice modeling this disease show a more severe phenotype when the transgene is bred on a pure SJL background and a milder phenotype when bred on a pure B6 background and that these phenotype differences link to a region on mouse Chromosome 17.To examine whether other models of motor neuron degeneration are affected by genetic background, we bred the mutant human dynactin p150Glued (G59S-hDCTN1) transgene onto inbred SJL and B6 congenic lines. This model is based on an autosomal dominant lower motor neuron disease in humans linked to a mutation in the p150Glued subunit of the dynactin complex. As seen in hSOD1-G93A mice, we observed a more severe phenotype with earlier disease onset (p<0.001) and decreased survival (p<0.00001) when the G59S-hDCTN1 transgene was bred onto the SJL background and delayed onset (p<0.0001) with increased survival (p<0.00001) when bred onto the B6 background. Furthermore, B6 mice with an SJL derived chromosome 17 interval previously shown to delay disease onset in hSOD1-G93A mice also showed delays onset in G59S-hDCTN1 mice suggesting that at least some genetic modifiers are shared. We have shown that genetic background influences phenotype in G59S-hDCTN1 mice, in part through a region of chromosome 17 similar to the G93-hSOD1 ALS mouse model. These results support the presence of genetic modifiers in both these models some of which may be shared. Identification of these modifiers will highlight intracellular pathways involved in motor neuron disease and provide new therapeutic targets that may be applicable to motor neuron degeneration.
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Affiliation(s)
- Terry D Heiman-Patterson
- Department of Neurology, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Elizabeth P Blankenhorn
- Department of Microbiology Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Roger B Sher
- Department of Molecular and Biomedical Sciences, University of Maine, Orono, Maine, United States of America
| | - Juliann Jiang
- Department of Neurology, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Priscilla Welsh
- Department of Neurology, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Meredith C Dixon
- Department of Neurology, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Jeremy I Jeffrey
- Department of Neurology, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
| | - Philip Wong
- Department of Neurology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Gregory A Cox
- The Jackson Laboratory, Bar Harbour, Maine, United States of America
| | - Guillermo M Alexander
- Department of Neurology, Drexel University College of Medicine, Philadelphia, Pennsylvania, United States of America
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Mühling T, Duda J, Weishaupt JH, Ludolph AC, Liss B. Elevated mRNA-levels of distinct mitochondrial and plasma membrane Ca(2+) transporters in individual hypoglossal motor neurons of endstage SOD1 transgenic mice. Front Cell Neurosci 2014; 8:353. [PMID: 25452714 PMCID: PMC4231948 DOI: 10.3389/fncel.2014.00353] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 10/08/2014] [Indexed: 12/13/2022] Open
Abstract
Disturbances in Ca2+ homeostasis and mitochondrial dysfunction have emerged as major pathogenic features in familial and sporadic forms of Amyotrophic Lateral Sclerosis (ALS), a fatal degenerative motor neuron disease. However, the distinct molecular ALS-pathology remains unclear. Recently, an activity-dependent Ca2+ homeostasis deficit, selectively in highly vulnerable cholinergic motor neurons in the hypoglossal nucleus (hMNs) from a common ALS mouse model, the endstage superoxide dismutase SOD1G93A transgenic mouse, was described. This functional deficit was defined by a reduced hMN mitochondrial Ca2+ uptake capacity and elevated Ca2+ extrusion across the plasma membrane. To address the underlying molecular mechanisms, here we quantified mRNA-levels of respective potential mitochondrial and plasma membrane Ca2+ transporters in individual, choline-acetyltransferase (ChAT) positive hMNs from wildtype (WT) and endstage SOD1G93A mice, by combining UV laser microdissection with RT-qPCR techniques, and specific data normalization. As ChAT cDNA levels as well as cDNA and genomic DNA levels of the mitochondrially encoded NADH dehydrogenase ND1 were not different between hMNs from WT and endstage SOD1G93A mice, these genes were used to normalize hMN-specific mRNA-levels of plasma membrane and mitochondrial Ca2+ transporters, respectively. We detected about 2-fold higher levels of the mitochondrial Ca2+ transporters MCU/MICU1, Letm1, and UCP2 in remaining hMNs from endstage SOD1G93A mice. These higher expression-levels of mitochondrial Ca2+ transporters in individual hMNs were not associated with a respective increase in number of mitochondrial genomes, as evident from hMN specific ND1 DNA quantification. Normalized mRNA-levels for the plasma membrane Na+/Ca2+ exchanger NCX1 were also about 2-fold higher in hMNs from SOD1G93A mice. Thus, pharmacological stimulation of Ca2+ transporters in highly vulnerable hMNs might offer a neuroprotective strategy for ALS.
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Affiliation(s)
- Tobias Mühling
- Department of Applied Physiology, Institute of Applied Physiology, Ulm University Ulm, Germany
| | - Johanna Duda
- Department of Applied Physiology, Institute of Applied Physiology, Ulm University Ulm, Germany
| | | | | | - Birgit Liss
- Department of Applied Physiology, Institute of Applied Physiology, Ulm University Ulm, Germany
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Eisen A, Kiernan M, Mitsumoto H, Swash M. Amyotrophic lateral sclerosis: a long preclinical period? J Neurol Neurosurg Psychiatry 2014; 85:1232-8. [PMID: 24648037 DOI: 10.1136/jnnp-2013-307135] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The onset of amyotrophic lateral sclerosis (ALS) is conventionally considered as commencing with the recognition of clinical symptoms. We propose that, in common with other neurodegenerations, the pathogenic mechanisms culminating in ALS phenotypes begin much earlier in life. Animal models of genetically determined ALS exhibit pathological abnormalities long predating clinical deficits. The overt clinical ALS phenotype may develop when safety margins are exceeded subsequent to years of mitochondrial dysfunction, neuroinflammation or an imbalanced environment of excitation and inhibition in the neuropil. Somatic mutations, the epigenome and external environmental influences may interact to trigger a metabolic cascade that in the adult eventually exceeds functional threshold. A long preclinical and subsequent presymptomatic period pose a challenge for recognition, since it offers an opportunity for protective and perhaps even preventive therapeutic intervention to rescue dysfunctional neurons. We suggest, by analogy with other neurodegenerations and from SOD1 ALS mouse studies, that vulnerability might be induced in the perinatal period.
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Affiliation(s)
- Andrew Eisen
- Division of Neurology, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Hiroshi Mitsumoto
- Wesley J. Howe Professor of Neurology at CUMC, Eleanor and Lou Gehrig MDA/ALS Research Center, The Neurological Institute of New York, Columbia University Medical Center, New York, USA
| | - Michael Swash
- Queen Mary University of London, UK Institute of Neuroscience, University of Lisbon, Portugal
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von Grabowiecki Y, Licona C, Palamiuc L, Abreu P, Vidimar V, Coowar D, Mellitzer G, Gaiddon C. Regulation of a Notch3-Hes1 pathway and protective effect by a tocopherol-omega alkanol chain derivative in muscle atrophy. J Pharmacol Exp Ther 2014; 352:23-32. [PMID: 25326132 DOI: 10.1124/jpet.114.216879] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Muscular atrophy, a physiopathologic process associated with severe human diseases such as amyotrophic lateral sclerosis (ALS) or cancer, has been linked to reactive oxygen species (ROS) production. The Notch pathway plays a role in muscle development and in muscle regeneration upon physical injury. In this study, we explored the possibility that the Notch pathway participates in the ROS-related muscular atrophy occurring in cancer-associated cachexia and ALS. We also tested whether hybrid compounds of tocopherol, harboring antioxidant activity, and the omega-alkanol chain, presenting cytoprotective activity, might reduce muscle atrophy and impact the Notch pathway. We identified one tocopherol-omega alkanol chain derivative, AGT251, protecting myoblastic cells against known cytotoxic agents. We showed that this compound presenting antioxidant activity counteracts the induction of the Notch pathway by cytotoxic stress, leading to a decrease of Notch1 and Notch3 expression. At the functional level, these regulations correlated with a repression of the Notch target gene Hes1 and the atrophy/remodeling gene MuRF1. Importantly, we also observed an induction of Notch3 and Hes1 expression in two murine models of muscle atrophy: a doxorubicin-induced cachexia model and an ALS murine model expressing mutated superoxide dismutase 1. In both models, the induction of Notch3 and Hes1 were partially opposed by AGT251, which correlated with ameliorations in body and muscle weight, reduction of muscular atrophy markers, and improved survival. Altogether, we identified a compound of the tocopherol family that protects against muscle atrophy in various models, possibly through the regulation of the Notch pathway.
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Affiliation(s)
- Yannick von Grabowiecki
- INSERM U1113, Molecular Mechanisms of Stress Response and Pathologies, Strasbourg, France (Y.v.G., C.L., P.A., V.V., G.M., C.G.); Faculté de Médecine de Strasbourg, Strasbourg University, Strasbourg, France (Y.v.G., C.L., L.P., P.A., V.V., G.M., C.G.); and AxoGlia Therapeutics, Fentange, Luxembourg (D.C.)
| | - Cynthia Licona
- INSERM U1113, Molecular Mechanisms of Stress Response and Pathologies, Strasbourg, France (Y.v.G., C.L., P.A., V.V., G.M., C.G.); Faculté de Médecine de Strasbourg, Strasbourg University, Strasbourg, France (Y.v.G., C.L., L.P., P.A., V.V., G.M., C.G.); and AxoGlia Therapeutics, Fentange, Luxembourg (D.C.)
| | - Lavinia Palamiuc
- INSERM U1113, Molecular Mechanisms of Stress Response and Pathologies, Strasbourg, France (Y.v.G., C.L., P.A., V.V., G.M., C.G.); Faculté de Médecine de Strasbourg, Strasbourg University, Strasbourg, France (Y.v.G., C.L., L.P., P.A., V.V., G.M., C.G.); and AxoGlia Therapeutics, Fentange, Luxembourg (D.C.)
| | - Paula Abreu
- INSERM U1113, Molecular Mechanisms of Stress Response and Pathologies, Strasbourg, France (Y.v.G., C.L., P.A., V.V., G.M., C.G.); Faculté de Médecine de Strasbourg, Strasbourg University, Strasbourg, France (Y.v.G., C.L., L.P., P.A., V.V., G.M., C.G.); and AxoGlia Therapeutics, Fentange, Luxembourg (D.C.)
| | - Vania Vidimar
- INSERM U1113, Molecular Mechanisms of Stress Response and Pathologies, Strasbourg, France (Y.v.G., C.L., P.A., V.V., G.M., C.G.); Faculté de Médecine de Strasbourg, Strasbourg University, Strasbourg, France (Y.v.G., C.L., L.P., P.A., V.V., G.M., C.G.); and AxoGlia Therapeutics, Fentange, Luxembourg (D.C.)
| | - Djalil Coowar
- INSERM U1113, Molecular Mechanisms of Stress Response and Pathologies, Strasbourg, France (Y.v.G., C.L., P.A., V.V., G.M., C.G.); Faculté de Médecine de Strasbourg, Strasbourg University, Strasbourg, France (Y.v.G., C.L., L.P., P.A., V.V., G.M., C.G.); and AxoGlia Therapeutics, Fentange, Luxembourg (D.C.)
| | - Georg Mellitzer
- INSERM U1113, Molecular Mechanisms of Stress Response and Pathologies, Strasbourg, France (Y.v.G., C.L., P.A., V.V., G.M., C.G.); Faculté de Médecine de Strasbourg, Strasbourg University, Strasbourg, France (Y.v.G., C.L., L.P., P.A., V.V., G.M., C.G.); and AxoGlia Therapeutics, Fentange, Luxembourg (D.C.)
| | - Christian Gaiddon
- INSERM U1113, Molecular Mechanisms of Stress Response and Pathologies, Strasbourg, France (Y.v.G., C.L., P.A., V.V., G.M., C.G.); Faculté de Médecine de Strasbourg, Strasbourg University, Strasbourg, France (Y.v.G., C.L., L.P., P.A., V.V., G.M., C.G.); and AxoGlia Therapeutics, Fentange, Luxembourg (D.C.)
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McCluskey L, Vandriel S, Elman L, Van Deerlin VM, Powers J, Boller A, Wood EM, Woo J, McMillan CT, Rascovsky K, Grossman M. ALS-Plus syndrome: non-pyramidal features in a large ALS cohort. J Neurol Sci 2014; 345:118-24. [PMID: 25086858 PMCID: PMC4177937 DOI: 10.1016/j.jns.2014.07.022] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 05/03/2014] [Accepted: 07/10/2014] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Autopsy studies show widespread pathology in amyotrophic lateral sclerosis (ALS), but clinical surveys of multisystem disease in ALS are rare. We investigated ALS-Plus syndrome, an understudied group of patients with clinical features extending beyond pyramidal and neuromuscular systems with or without cognitive/behavioral deficits. METHODS In a large, consecutively-ascertained cohort of 550 patients with ALS, we documented atypical clinical manifestations. Genetic screening for C9orf72 hexanucleotide expansions was performed in 343 patients, and SOD1, TARDBP, and VCP were tested in the subgroup of patients with a family history of ALS. Gray matter and white matter imaging was available in a subgroup of 30 patients. RESULTS Seventy-five (13.6%) patients were identified with ALS-Plus syndrome. We found disorders of ocular motility, cerebellar, extrapyramidal and autonomic functioning. Relative to those without ALS-Plus, cognitive impairment (8.0% vs 2.9%, p=0.029), bulbar-onset (49.3% vs 23.2%, p<0.001), and pathogenic mutations (20.0% vs 8.4%, p=0.015) were more than twice as common in ALS-Plus. Survival was significantly shorter in ALS-Plus (29.66 months vs 42.50 months, p=0.02), regardless of bulbar-onset or mutation status. Imaging revealed significantly greater cerebellar and cerebral disease in ALS-Plus compared to those without ALS-Plus. CONCLUSIONS ALS-Plus syndrome is not uncommon, and the presence of these atypical features is consistent with neuropathological observations that ALS is a multisystem disorder. ALS-Plus syndrome is associated with increased risk for poor survival and the presence of a pathogenic mutation.
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Affiliation(s)
- Leo McCluskey
- Department of Neurology, University of Pennsylvania, United States
| | - Shannon Vandriel
- Department of Neurology, University of Pennsylvania, United States
| | - Lauren Elman
- Department of Neurology, University of Pennsylvania, United States
| | - Vivianna M Van Deerlin
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, United States
| | - John Powers
- Department of Neurology, University of Pennsylvania, United States
| | - Ashley Boller
- Department of Neurology, University of Pennsylvania, United States
| | - Elisabeth McCarty Wood
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, United States
| | - John Woo
- Department of Radiology, University of Pennsylvania, United States
| | - Corey T McMillan
- Department of Neurology, University of Pennsylvania, United States
| | - Katya Rascovsky
- Department of Neurology, University of Pennsylvania, United States
| | - Murray Grossman
- Department of Neurology, University of Pennsylvania, United States.
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Moloney EB, de Winter F, Verhaagen J. ALS as a distal axonopathy: molecular mechanisms affecting neuromuscular junction stability in the presymptomatic stages of the disease. Front Neurosci 2014; 8:252. [PMID: 25177267 PMCID: PMC4132373 DOI: 10.3389/fnins.2014.00252] [Citation(s) in RCA: 217] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 07/29/2014] [Indexed: 12/12/2022] Open
Abstract
Amyotrophic Lateral Sclerosis (ALS) is being redefined as a distal axonopathy, in that many molecular changes influencing motor neuron degeneration occur at the neuromuscular junction (NMJ) at very early stages of the disease prior to symptom onset. A huge variety of genetic and environmental causes have been associated with ALS, and interestingly, although the cause of the disease can differ, both sporadic and familial forms of ALS show a remarkable similarity in terms of disease progression and clinical manifestation. The NMJ is a highly specialized synapse, allowing for controlled signaling between muscle and nerve necessary for skeletal muscle function. In this review we will evaluate the clinical, animal experimental and cellular/molecular evidence that supports the idea of ALS as a distal axonopathy. We will discuss the early molecular mechanisms that occur at the NMJ, which alter the functional abilities of the NMJ. Specifically, we focus on the role of axon guidance molecules on the stability of the cytoskeleton and how these molecules may directly influence the cells of the NMJ in a way that may initiate or facilitate the dismantling of the neuromuscular synapse in the presymptomatic stages of ALS.
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Affiliation(s)
- Elizabeth B. Moloney
- Department of Regeneration of Sensorimotor Systems, Netherlands Institute for Neuroscience, Institute of the Royal Netherlands Academy of Arts and ScienceAmsterdam, Netherlands
| | - Fred de Winter
- Department of Regeneration of Sensorimotor Systems, Netherlands Institute for Neuroscience, Institute of the Royal Netherlands Academy of Arts and ScienceAmsterdam, Netherlands
- Department of Neurosurgery, Leiden University Medical CentreLeiden, Netherlands
| | - Joost Verhaagen
- Department of Regeneration of Sensorimotor Systems, Netherlands Institute for Neuroscience, Institute of the Royal Netherlands Academy of Arts and ScienceAmsterdam, Netherlands
- Centre for Neurogenomics and Cognitive Research, Vrije Universiteit AmsterdamAmsterdam, Netherlands
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Personality disturbances in amyotrophic lateral sclerosis: a case study demonstrating changes in personality without cognitive deficits. J Int Neuropsychol Soc 2014; 20:764-71. [PMID: 24854881 PMCID: PMC4429900 DOI: 10.1017/s1355617714000459] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Patients with amyotrophic lateral sclerosis (ALS) often show deficits on neuropsychological tests that tap functions related to the integrity of the prefrontal lobes. Various aspects of personality are also known to be mediated by prefrontal regions, particularly ventromedial prefrontal cortex (vmPFC). Other than apathy, personality changes have not been widely reported in patients with ALS, although clinical observations indicate such changes might be relatively common. Here, we report on a middle-aged woman with bulbar onset ALS (diagnosed 06/2011, examined in Spring, 2012) whose neuropsychological exam did not reveal cognitive deficits. She performed normally on tests of executive functioning. Self-report measures of mood and personality were unremarkable. However, significant personality changes subsequent to disease onset were reported by her husband and two daughters, and these changes were quantified with the Iowa Scales of Personality Change. Results show that personality disturbance may manifest in the absence of notable cognitive changes in ALS, and careful assessment of personality may be important for documenting early neurobehavioral changes in some ALS patients. Findings also show that patients with ALS may not have good insight into personality changes, underscoring the importance of acquiring collateral information. More generally, the results provide further evidence that ALS may compromise the integrity of ventromedial prefrontal regions.
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