title: Kinetics of chemically mediated neurodegeneration/neuroregeneration of mouse olfactory epithelium: monitoring by hyperlayer sedimentation field flow fractionation.
abstract: The increase in the incidence of neurodegenerative diseases linked to aging or injury needs to be addressed in research into neuroprotective or neuroregenerative therapies, and requires the development of specific biological models. To achieve this goal we propose (1) the use of the mouse olfactory epithelium as a biological support which specifically exhibits a regenerative or a self-renewing capacity and during the lifetime necessitates the presence of neural stem cells, and (2) the use of an intraperitoneal injection of 2,6-dichlorobenzonitrile (diclobenil) as a chemical inducer of neurodegeneration in olfactory epithelium by selectively killing mature cells. We developed a biological model to follow the processes of neurodegeneration (chemically induced) and neuroregeneration (self-renewal of olfactory epithelium). The purpose of this study was to develop a method to monitor quickly neurodegeneration/neuroregeneration processes in order to further screen protective and regenerative therapies. For this purpose, we used the sedimentation field flow fractionation elution of olfactory epithelium. We obtained specific elution profiles and retention parameters allowing the monitoring of the induction and kinetics of biological processes. The use of insulin-like growth factor 1α as a neuroprotective agent in an innovative nebulization protocol showed sedimentation field flow fractionation to be a simple, fast and low-cost method to monitor such a biological event on the scale of an entire organism.
authors: Laboratoire d'Immunologie, EA 3842, "Homéostasie Cellulaire et Pathologies", Faculté de Médecine, Université de Limoges, 2 rue du Docteur Marcland, 87025, Limoges Cedex, France.
authors: N
authors: N
authors: Mitais
authors: B
authors: B
authors: Bessette
authors: S
authors: S
authors: Gobron
authors: P
authors: P
authors: Cardot
authors: M O
authors: MO
authors: Jauberteau
authors: S
authors: S
authors: Battu
authors: F
authors: F
authors: Lalloué
mesh_terms: D000818:Animals; D017209:Apoptosis; D004195:Disease Models, Animal; D031521:Fractionation, Field Flow / Q000379:methods*; D007334:Insulin-Like Growth Factor I / Q000627:therapeutic use; D007700:Kinetics; D008297:Male; D051379:Mice; D009416:Nerve Regeneration / Q000187:drug effects; D019636:Neurodegenerative Diseases / Q000139:chemically induced* / Q000188:drug therapy / Q000473:pathology*; D018696:Neuroprotective Agents / Q000627:therapeutic use; D009570:Nitriles; D009831:Olfactory Mucosa / Q000187:drug effects / Q000294:innervation* / Q000473:pathology*
chemical_list: D018696:Neuroprotective Agents; D009570:Nitriles; D007334:Insulin-Like Growth Factor I; C055869:dichlobanil