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https://www.readbyqxmd.com/read/29128403/cln5-is-secreted-and-functions-as-a-glycoside-hydrolase-in-dictyostelium
#1
Robert J Huber, Sabateeshan Mathavarajah
Ceroid lipofuscinosis neuronal 5 (CLN5) is a member of a family of proteins that are linked to neuronal ceroid lipofuscinosis (NCL). This devastating neurological disorder, known commonly as Batten disease, affects all ages and ethnicities and is currently incurable. The precise function of CLN5, like many of the NCL proteins, remains to be elucidated. In this study, we report the localization, molecular function, and interactome of Cln5, the CLN5 homolog in the social amoeba Dictyostelium discoideum. Residues that are glycosylated in human CLN5 are conserved in the Dictyostelium homolog as are residues that are mutated in patients with CLN5 disease...
November 8, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28809398/precision-medicine-for-suicidality-from-universality-to-subtypes-and-personalization
#2
A B Niculescu, H Le-Niculescu, D F Levey, P L Phalen, H L Dainton, K Roseberry, E M Niculescu, J O Niezer, A Williams, D L Graham, T J Jones, V Venugopal, A Ballew, M Yard, T Gelbart, S M Kurian, A Shekhar, N J Schork, G E Sandusky, D R Salomon
Suicide remains a clear, present and increasing public health problem, despite being a potentially preventable tragedy. Its incidence is particularly high in people with overt or un(der)diagnosed psychiatric disorders. Objective and precise identification of individuals at risk, ways of monitoring response to treatments and novel preventive therapeutics need to be discovered, employed and widely deployed. We sought to investigate whether blood gene expression biomarkers for suicide (that is, a 'liquid biopsy' approach) can be identified that are more universal in nature, working across psychiatric diagnoses and genders, using larger cohorts than in previous studies...
September 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28733362/loss-of-cln5-causes-altered-neurogenesis-in-a-mouse-model-of-a-childhood-neurodegenerative-disorder
#3
Ekaterina Savchenko, Yajuvinder Singh, Henna Konttinen, Katarina Lejavova, Laura Mediavilla Santos, Alexandra Grubman, Virve Kärkkäinen, Velta Keksa-Goldsteine, Nikolay Naumenko, Pasi Tavi, Anthony R White, Tarja Malm, Jari Koistinaho, Katja M Kanninen
Neural stem/progenitor cells (NPCs) generate new neurons in the brain throughout an individual's lifetime in an intricate process called neurogenesis. Neurogenic alterations are a common feature of several adult-onset neurodegenerative diseases. The neuronal ceroid lipofuscinoses (NCLs) are the most common group of inherited neurodegenerative diseases that mainly affect children. Pathological features of the NCLs include accumulation of lysosomal storage material, neuroinflammation and neuronal degeneration, yet the exact cause of this group of diseases remains poorly understood...
September 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28556060/the-value-of-a-comprehensive-natural-history-in-late-infantile-cln5-disease
#4
COMMENT
Sara E Mole
No abstract text is available yet for this article.
August 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28542837/phenotype-and-natural-history-of-variant-late-infantile-ceroid-lipofuscinosis-5
#5
MULTICENTER STUDY
Alessandro Simonati, Ruth E Williams, Nardo Nardocci, Minna Laine, Roberta Battini, Angela Schulz, Barbara Garavaglia, Francesca Moro, Francesco Pezzini, Filippo M Santorelli
AIM: To characterize the phenotypic profile of a cohort of children affected with CLN5, a rare form of neuronal ceroid-lipofuscinosis (NCL), and to trace the features of the natural history of the disease. METHOD: Records of 15 children (nine males, six females) were obtained from the data sets of the DEM-CHILD International NCL Registry. Disease progression was measured by rating six functional domains at different time points along the disease course. All patients underwent mutation analysis of the CLN5 gene and ultrastructural investigations of peripheral tissues...
August 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28487519/retinal-degeneration-in-a-mouse-model-of-cln5-disease-is-associated-with-compromised-autophagy
#6
Henri Leinonen, Velta Keksa-Goldsteine, Symantas Ragauskas, Philip Kohlmann, Yajuvinder Singh, Ekaterina Savchenko, Jooseppi Puranen, Tarja Malm, Giedrius Kalesnykas, Jari Koistinaho, Heikki Tanila, Katja M Kanninen
The Finnish variant of late infantile neuronal ceroid lipofuscinosis (CLN5 disease) belongs to a family of neuronal ceroid lipofuscinosis (NCLs) diseases. Vision loss is among the first clinical signs in childhood forms of NCLs. Mutations in CLN5 underlie CLN5 disease. The aim of this study was to characterize how the lack of normal functionality of the CLN5 protein affects the mouse retina. Scotopic electroretinography (ERG) showed a diminished c-wave amplitude in the CLN5 deficient mice already at 1 month of age, indicative of pathological events in the retinal pigmented epithelium...
May 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28468312/induced-pluripotent-stem-cells-derived-from-a-cln5-patient-manifest-phenotypic-characteristics-of-neuronal-ceroid-lipofuscinoses
#7
Kristiina Uusi-Rauva, Tea Blom, Carina von Schantz-Fant, Tomas Blom, Anu Jalanko, Aija Kyttälä
Neuronal ceroid lipofuscinoses (NCLs) are autosomal recessive progressive encephalopathies caused by mutations in at least 14 different genes. Despite extensive studies performed in different NCL animal models, the molecular mechanisms underlying neurodegeneration in NCLs remain poorly understood. To model NCL in human cells, we generated induced pluripotent stem cells (iPSCs) by reprogramming skin fibroblasts from a patient with CLN5 (ceroid lipofuscinosis, neuronal, 5) disease, the late infantile variant form of NCL...
May 1, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28442266/cln5-is-cleaved-by-members-of-the-spp-sppl-family-to-produce-a-mature-soluble-protein
#8
Felix Jules, Etienne Sauvageau, Karine Dumaresq-Doiron, Javier Mazzaferri, Martina Haug-Kröper, Regina Fluhrer, Santiago Costantino, Stephane Lefrancois
The Neuronal ceroid lipofuscinoses (NCLs) are a group of recessive disorders of childhood with overlapping symptoms including vision loss, ataxia, cognitive regression and premature death. 14 different genes have been linked to NCLs (CLN1-CLN14), but the functions of the proteins encoded by the majority of these genes have not been fully elucidated. Mutations in the CLN5 gene are responsible for the Finnish variant late-infantile form of NCL (Finnish vLINCL). CLN5 is translated as a 407 amino acid transmembrane domain containing protein that is heavily glycosylated, and subsequently cleaved into a mature soluble protein...
August 1, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28065762/characterisation-of-early-changes-in-ovine-cln5-and-cln6-batten-disease-neural-cultures-for-the-rapid-screening-of-therapeutics
#9
Hannah L Best, Nicole J Neverman, Hollie E Wicky, Nadia L Mitchell, Beulah Leitch, Stephanie M Hughes
Batten disease (neuronal ceroid lipofuscinosis) refers to a group of neurodegenerative lysosomal storage diseases predominantly affecting children. There are currently no effective treatments, and the functions of many of the associated gene products are unknown. Here we characterise fetal neural cultures from two genetically distinct sheep forms of Batten disease, with mutations in the lysosomal protein encoding gene CLN5 and endoplasmic reticulum membrane protein encoding gene CLN6, respectively. We found similar reductions in autophagy, acidic organelles and synaptic recycling in both forms compared to unaffected cells...
January 5, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/27903347/-clinical-genetic-and-pathological-features-of-neuronal-ceroid-lipofuscinosis-in-5-chinese-patients
#10
S C Ren, B Q Gao, Y J Wang, X J Wu, Z X Tian, Y L Sun
Objective: To report the clinical, genetic and ultrastructural pathological features of neuronal ceroid lipofuscinosis (NCLs) in 5 Chinese patients. Methods: A total of 5 patients with NCLs were collected from 2013 to 2015 diagnosed by the department of pediatrics of Beijing Tian Tan Hospital. Their clinical, electrophysiological and neuroimaging data of the patients were reviewed.A total of 9 underlying genes of NCLs were tested in 4 cases and their parents.Ultrastructural pathology by skin biopsy was performed in 3 cases respectively...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27881166/using-the-social-amoeba-dictyostelium-to-study-the-functions-of-proteins-linked-to-neuronal-ceroid-lipofuscinosis
#11
REVIEW
Robert J Huber
Neuronal ceroid lipofuscinosis (NCL), also known as Batten disease, is a debilitating neurological disorder that affects both children and adults. Thirteen genetically distinct genes have been identified that when mutated, result in abnormal lysosomal function and an excessive accumulation of ceroid lipofuscin in neurons, as well as other cell types outside of the central nervous system. The NCL family of proteins is comprised of lysosomal enzymes (PPT1/CLN1, TPP1/CLN2, CTSD/CLN10, CTSF/CLN13), proteins that peripherally associate with membranes (DNAJC5/CLN4, KCTD7/CLN14), a soluble lysosomal protein (CLN5), a protein present in the secretory pathway (PGRN/CLN11), and several proteins that display different subcellular localizations (CLN3, CLN6, MFSD8/CLN7, CLN8, ATP13A2/CLN12)...
November 24, 2016: Journal of Biomedical Science
https://www.readbyqxmd.com/read/27508227/data-on-characterizing-the-gene-expression-patterns-of-neuronal-ceroid-lipofuscinosis-genes-cln1-cln2-cln3-cln5-and-their-association-to-interneuron-and-neurotransmission-markers-parvalbumin-and-somatostatin
#12
Helena M Minye, Anna-Liisa Fabritius, Jouni Vesa, Leena Peltonen
The article contains raw and analyzed data related to the research article "Neuronal ceroid lipofuscinosis genes, CLN2, CLN3, CLN5 are spatially and temporally co-expressed in a developing mouse brain" (Fabritius et al., 2014) [1]. The processed data gives an understanding of the development of the cell types that are mostly affected by defective function of CLN proteins, timing of expression of CLN1, CLN2, CLN3 and CLN5 genes in a murine model. The data shows relationship between the expression pattern of these genes during neural development...
September 2016: Data in Brief
https://www.readbyqxmd.com/read/27488642/an-eeg-investigation-of-sleep-homeostasis-in-healthy-and-cln5-batten-disease-affected-sheep
#13
Nicholas Perentos, Amadeu Q Martins, Robin J M Cumming, Nadia L Mitchell, David N Palmer, Stephen J Sawiak, A Jennifer Morton
UNLABELLED: Sheep have large brains with human-like anatomy, making them a useful species for studying brain function. Sleep homeostasis has not been studied in sheep. Here, we establish correlates of sleep homeostasis in sheep through a sleep deprivation experiment. We then use these correlates to elucidate the nature of sleep deficits in a naturally occurring ovine model of neuronal ceroid lipofuscinosis (NCL, Batten disease) caused by a mutation in CLN5 In humans, mutations in this gene lead to cortical atrophy and blindness, as well as sleep abnormalities...
August 3, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27203721/australian-cattle-dogs-with-neuronal-ceroid-lipofuscinosis-are-homozygous-for-a-cln5-nonsense-mutation-previously-identified-in-border-collies
#14
A Kolicheski, G S Johnson, D P O'Brien, T Mhlanga-Mutangadura, D Gilliam, J Guo, T D Anderson-Sieg, R D Schnabel, J F Taylor, A Lebowitz, B Swanson, D Hicks, Z E Niman, F A Wininger, M C Carpentier, M L Katz
BACKGROUND: Neuronal ceroid lipofuscinosis (NCL), a fatal neurodegenerative disease, has been diagnosed in young adult Australian Cattle Dogs. OBJECTIVE: Characterize the Australian Cattle Dog form of NCL and determine its molecular genetic cause. ANIMALS: Tissues from 4 Australian Cattle Dogs with NCL-like signs and buccal swabs from both parents of a fifth affected breed member. Archived DNA samples from 712 individual dogs were genotyped...
July 2016: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/26664787/molecular-neuropathology-of-the-synapse-in-sheep-with-cln5-batten-disease
#15
Inês S Amorim, Nadia L Mitchell, David N Palmer, Stephen J Sawiak, Roger Mason, Thomas M Wishart, Thomas H Gillingwater
AIMS: Synapses represent a major pathological target across a broad range of neurodegenerative conditions. Recent studies addressing molecular mechanisms regulating synaptic vulnerability and degeneration have relied heavily on invertebrate and mouse models. Whether similar molecular neuropathological changes underpin synaptic breakdown in large animal models and in human patients with neurodegenerative disease remains unclear. We therefore investigated whether molecular regulators of synaptic pathophysiology, previously identified in Drosophila and mouse models, are similarly present and modified in the brain of sheep with CLN5 Batten disease...
November 2015: Brain and Behavior
https://www.readbyqxmd.com/read/26463994/effects-of-sialidase-neu1-sirna-on-proliferation-apoptosis-and-invasion-in-human-ovarian-cancer
#16
Li-rong Ren, Li-ping Zhang, Shu-ying Huang, Yuan-fang Zhu, Wen-juan Li, Shan-yu Fang, Li Shen, Yan-ling Gao
Ovarian cancer is one of the most common malignancies encountered in the world. In ovarian cancer tissues of patients, NEU1 was expressed in a higher level than that in adjacent normal tissues. In this research, we aimed to elucidate the role of NEU1 siRNA on proliferation, apoptosis, and invasion of OVCAR3 and SKOV3 cells which expressed NEU1 notably. By cell viability assay and flow cytometry method, we found that NEU1 siRNA effectively inhibited the cancer proliferation, arrested cells cycle at G0/G1 phase, and induced apoptosis when compared to the Mock group...
January 2016: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/26342652/proteolytic-processing-of-the-neuronal-ceroid-lipofuscinosis-related-lysosomal-protein-cln5
#17
Bhagya De Silva, Jessie Adams, Stella Y Lee
CLN5 is a soluble lysosomal glycoprotein. Deficiency in CLN5 protein causes neuronal ceroid lipofuscinosis, an inherited neurodegenerative lysosomal storage disorder. The function of CLN5 and how it affects lysosome activity are unclear. We identified two forms of the CLN5 protein present in most of the cell lines studied. The molecular mass difference between these two forms is about 4kDa. The fibroblast cells derived from two CLN5 patients lack both forms. Using transient transfection, we showed one of these two forms is a proprotein and the other is a C-terminal cleaved mature form...
October 15, 2015: Experimental Cell Research
https://www.readbyqxmd.com/read/26080076/vegi-attenuates-the-inflammatory-injury-and-disruption-of-blood-brain-barrier-partly-by-suppressing-the-tlr4-nf-%C3%AE%C2%BAb-signaling-pathway-in-experimental-traumatic-brain-injury
#18
Weiwei Gao, Zilong Zhao, Gongjie Yu, Ziwei Zhou, Yuan Zhou, Tingting Hu, Rongcai Jiang, Jianning Zhang
Acute traumatic brain injury (TBI) tends to cause the over-activation of inflammatory response and disruption of blood brain barrier (BBB), associating with long-term cognitive and behavioral dysfunction. Vascular endothelial growth inhibitor (VEGI), as a suppressor in the angiogenesis specifically by inducing apoptosis in proliferating endothelial cells, has been applied to different diseases, especially the tumors. But rare study had been done in the field of brain injury. So in this study, we investigated the effects and mechanisms associated with VEGI-induced neuroprotection following CNS injury in mice TBI models...
October 5, 2015: Brain Research
https://www.readbyqxmd.com/read/26073432/recent-studies-of-ovine-neuronal-ceroid-lipofuscinoses-from-barn-the-batten-animal-research-network
#19
REVIEW
David N Palmer, Nicole J Neverman, Jarol Z Chen, Chia-Tien Chang, Peter J Houweling, Lucy A Barry, Imke Tammen, Stephanie M Hughes, Nadia L Mitchell
Studies on naturally occurring New Zealand and Australian ovine models of the neuronal ceroid-lipofuscinoses (Batten disease, NCLs) have greatly aided our understanding of these diseases. Close collaborations between the New Zealand groups at Lincoln University and the University of Otago, Dunedin, and a group at the University of Sydney, Australia, led to the formation of BARN, the Batten Animal Research Network. This review focusses on presentations at the 14th International Conference on Neuronal Ceroid Lipofuscinoses (Batten Disease), recent relevant background work, and previews of work in preparation for publication...
October 2015: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/26026925/genetics-of-the-neuronal-ceroid-lipofuscinoses-batten-disease
#20
REVIEW
Sara E Mole, Susan L Cotman
The neuronal ceroid lipofuscinoses (NCLs) are a group of inherited neurodegenerative disorders that affect children and adults and are grouped together by similar clinical features and the accumulation of autofluorescent storage material. More than a dozen genes containing over 430 mutations underlying human NCLs have been identified. These genes encode lysosomal enzymes (CLN1, CLN2, CLN10, CLN13), a soluble lysosomal protein (CLN5), a protein in the secretory pathway (CLN11), two cytoplasmic proteins that also peripherally associate with membranes (CLN4, CLN14), and many transmembrane proteins with different subcellular locations (CLN3, CLN6, CLN7, CLN8, CLN12)...
October 2015: Biochimica et Biophysica Acta
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