Littérature scientifique sur le sujet « Ceroidolipofuscinosi neuronali »
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Articles de revues sur le sujet "Ceroidolipofuscinosi neuronali"
Chabrol, B., et C. Caillaud. « Ceroidolipofuscinosis neuronales ». EMC - Pediatría 43, no 4 (janvier 2008) : 1–7. http://dx.doi.org/10.1016/s1245-1789(08)70213-0.
Texte intégralMiranda Contreras, L., W. Delgado Luengo, N. Zerpa, J. Chacín Hernández, C. J. Chávez et S. González Ferrer. « Tripeptidil peptidasa 1 en pacientes con ceroidolipofuscinosis neuronal infantil tardía ». Anales de Pediatría 76, no 3 (mars 2012) : 148–52. http://dx.doi.org/10.1016/j.anpedi.2011.09.020.
Texte intégralCimini, Sara, Sonia Bellini, Claudia Saraceno, Luisa Benussi, Roberta Ghidoni, Silvia Clara Giliani, Gianfranco Puoti, Laura Canafoglia, Giorgio Giaccone et Giacomina Rossi. « Pathological 25 kDa C-Terminal Fragments of TDP-43 Are Present in Lymphoblastoid Cell Lines and Extracellular Vesicles from Patients Affected by Frontotemporal Lobar Degeneration and Neuronal Ceroidolipofuscinosis Carrying a GRN Mutation ». International Journal of Molecular Sciences 23, no 22 (9 novembre 2022) : 13753. http://dx.doi.org/10.3390/ijms232213753.
Texte intégralBossolasco, Patrizia, Sara Cimini, Emanuela Maderna, Donatella Bardelli, Laura Canafoglia, Tiziana Cavallaro, Martina Ricci, Vincenzo Silani, Gianluca Marucci et Giacomina Rossi. « GRN−/− iPSC-derived cortical neurons recapitulate the pathological findings of both frontotemporal lobar degeneration and neuronal ceroidolipofuscinosis ». Neurobiology of Disease, octobre 2022, 105891. http://dx.doi.org/10.1016/j.nbd.2022.105891.
Texte intégralThèses sur le sujet "Ceroidolipofuscinosi neuronali"
PEZZINI, Francesco. « Behaviour of endo-lysosomal and mitochondrial compartments in human NCL fibroblasts in vitro ». Doctoral thesis, Università degli Studi di Verona, 2010. http://hdl.handle.net/11562/343907.
Texte intégralNeuronal ceroid lipofuscinoses (NCL) are degenerative disorders of childhood, which affect the central nervous system (CNS). NCL belong to the wider group of lysosomal storage diseases and they are characterized by the accumulation of endo-lysosomal material with specific ultrastructural features, both in neuronal cells and other peripheral tissues. NCL arise from either primary or secondary involvement of the lysosomal compartment, since mutated NCL proteins reside not only in the lysosomes but also in other cellular structures, such as the endoplasmic reticulum. Over last 30 year ten NCL forms have been identified according to clinical, pathological and molecular criteria; moreover, eight NCL genes have been cloned, coding for proteins of specific and different functions. Therefore, today, NCL represents the acronym of a group of genetically different disorders of the CNS, leading to progressive shrinkage of the brain. The main issue in the NCL pathology is the comprehension of which cellular mechanisms are involved in neuronal cell death in these conditions. Recently the attention has been addressed mainly to the pathogenetic role that the abnormal storage may exert on the cellular homeostasis and survival, even through apoptotic cell death. Moreover, a role for autophagy is also under scrutiny, since morphological and molecular evidences suggest the activation of this cellular mechanism both in humans and animal models of disease. The aim of this doctorate project was to analyze in vitro the cellular behaviour of human genetically determined NCL fibroblasts derived from skin biopsies of patients affected with NCL forms, harbouring mutations on CLN1, CLN3, CLN5, CLN6 and CLN7 genes. Specifically, fibroblasts cell lines were analyzed in a ‘prolonged culture paradigm’ in order to assess which cellular responses could be activated by NCL cells, carrying a pre-existing endo-lysosomal dysfunction, to cope with the aging process in vitro. We focused our attention principally on the evolution of the endo-lysosomal system during the prolonged growth; at the same time, we checked the mitochondria functionality and the activation of the apoptotic pathway. Both morphological and biochemical tools were used. The morphological investigation of the endo-lysosomal system revealed that the aging of NCL cultures was associated with a progressive accumulation of lysosomal elements (lysosomal bodies, autolysosomes and empty vacuoles) in different manner as compared to controls. Furthermore, a different behaviour in the accumulation process of dense bodies and single membrane vacuoles was seen between CLN1 and the other forms. The detection of autophagosomes led to investigate the autophagic pathway, that was found to be activated in several cell lines, regardless the NCL forms and the severity of mutation. Moreover, the morphological alterations of the endo-lysosomal compartment occurring in all NCL cell lines affected the mitochondrial network and the distribution of polarized mitochondria as well. No evidences of apoptotic activation were seen under basal conditions during the prolonged growth in all the cell lines analyzed. However, the treatment with the apoptotic chemical inducer Staurosporine revealed a different activation of the caspase-3 dependent apoptosis in two CLN1 lines as compared to the other NCL forms and controls. These results suggested that autophagy is activated in NCL fibroblasts, probably as a rescue cellular program to cope with the endo-lysosomal stress, intensified by the prolonged growth in vitro. At the same time, mitochondria, a vital compartment for the cell survival, were secondary affected in this in vitro model, whereas the indirect evidence of involved apoptotic pathway in CLN1 only seems to be consistent with recent scientific reports.