Name: Techniek voor intranasale toediening van α-synucleïne-aggregaten (Video) | JoVE Journal
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Description: Leer een eenvoudige intranasale toedieningsmethode voor α-synucleïne-aggregaten in muismodellen om de prionachtige verspreiding naar de olfactorische bol bij de ziekte van Parkinson te bestuderen.

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<meta charset="utf8"></head><body>α-synucleïnevoortplanting: intranasale toediening bij de ziekte van Parkinson

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<li>Uemura, N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Inoculation+of+%CE%B1-synuclein+preformed+fibrils+into+the+mouse+gastrointestinal+tract+induces+Lewy+body-like+aggregates+in+the+brainstem+via+the+vagus+nerve%5BTitle%5D)+AND+%22Mol+Neurodegener%22%5BJournal%5D)">Inoculation of α-synuclein preformed fibrils into the mouse gastrointestinal tract induces Lewy body-like aggregates in the brainstem via the vagus nerve.</a> Mol Neurodegener. 13 (1), 21(2018).</li>
<li>Rey, N. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Widespread+transneuronal+propagation+of+alpha-synucleinopathy+triggered+in+olfactory+bulb+mimics+prodromal+Parkinson%27s+disease%5BTitle%5D)+AND+%22J+Exp+Med%22%5BJournal%5D)">Widespread transneuronal propagation of alpha-synucleinopathy triggered in olfactory bulb mimics prodromal Parkinson's disease.</a> J Exp Med. 213 (9), 1759-1778 (2016).</li>
<li>Rey, N. L., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Spread+of+aggregates+after+olfactory+bulb+injection+of+%CE%B1-synuclein+fibrils+is+associated+with+early+neuronal+loss+and+is+reduced+long+term%5BTitle%5D)+AND+%22Acta+Neuropathol%22%5BJournal%5D)">Spread of aggregates after olfactory bulb injection of α-synuclein fibrils is associated with early neuronal loss and is reduced long term.</a> Acta Neuropathol. 135 (1), 65-83 (2018).</li>
<li>Uemura, N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((%CE%B1-Synuclein+spread+from+olfactory+bulb+causes+hyposmia%2C+anxiety%2C+and+memory+loss+in+BAC-SNCA+mice%5BTitle%5D)+AND+%22Mov+Disord%22%5BJournal%5D)">α-Synuclein spread from olfactory bulb causes hyposmia, anxiety, and memory loss in BAC-SNCA mice.</a> Mov Disord. 36 (9), 2036-2047 (2021).</li>
<li>Saito, Y., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Lewy+body+pathology+involves+the+olfactory+cells+in+Parkinson%27s+disease+and+related+disorders%5BTitle%5D)+AND+%22Mov+Disord%22%5BJournal%5D)">Lewy body pathology involves the olfactory cells in Parkinson's disease and related disorders.</a> Mov Disord. 31 (1), 135-138 (2016).</li>
<li>De Luca, C. M. G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Efficient+RT-QuIC+seeding+activity+for+%CE%B1-synuclein+in+olfactory+mucosa+samples+of+patients+with+Parkinson%27s+disease+and+multiple+system+atrophy%5BTitle%5D)+AND+%22Transl+Neurodegener%22%5BJournal%5D)">Efficient RT-QuIC seeding activity for α-synuclein in olfactory mucosa samples of patients with Parkinson's disease and multiple system atrophy.</a> Transl Neurodegener. 8, 24(2019).</li>
<li>Stefani, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Alpha-synuclein+seeds+in+olfactory+mucosa+of+patients+with+isolated+REM+sleep+behaviour+disorder%5BTitle%5D)+AND+%22Brain%22%5BJournal%5D)">Alpha-synuclein seeds in olfactory mucosa of patients with isolated REM sleep behaviour disorder.</a> Brain. 144 (4), 1118-1126 (2021).</li>
<li>Ucciferri, C. C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Scoring+central+nervous+system+inflammation%2C+demyelination%2C+and+axon+injury+in+experimental+autoimmune+encephalomyelitis%5BTitle%5D)+AND+%22J+Vis+Exp%22%5BJournal%5D)">Scoring central nervous system inflammation, demyelination, and axon injury in experimental autoimmune encephalomyelitis.</a> J Vis Exp. (204), e65738(2024).</li>
<li>Masuda-Suzukake, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Prion-like+spreading+of+pathological+%CE%B1-synuclein+in+brain%5BTitle%5D)+AND+%22Brain%22%5BJournal%5D)">Prion-like spreading of pathological α-synuclein in brain.</a> Brain. 136 (Pt 4), 1128-1138 (2013).</li>
<li>Sawamura, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Single-dose+intranasal+administration+of+%CE%B1-syn+PFFs+induce+lewy+neurite-like+pathology+in+olfactory+bulbs%5BTitle%5D)+AND+%22Parkinsonism+Relat+Disord%22%5BJournal%5D)">Single-dose intranasal administration of α-syn PFFs induce lewy neurite-like pathology in olfactory bulbs.</a> Parkinsonism Relat Disord. 112, 105440(2023).</li>
<li>Guo, J. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Intranasal+administration+of+%CE%B1-synuclein+preformed+fibrils+triggers+microglial+iron+deposition+in+the+substantia+nigra+of+Macaca+fascicularis%5BTitle%5D)+AND+%22Cell+Death+Dis%22%5BJournal%5D)">Intranasal administration of α-synuclein preformed fibrils triggers microglial iron deposition in the substantia nigra of Macaca fascicularis.</a> Cell Death Dis. 12 (1), 81(2021).</li>
<li>Macdonald, J. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Assembly+of+%CE%B1-synuclein+and+neurodegeneration+in+the+central+nervous+system+of+heterozygous+M83+mice+following+the+peripheral+administration+of+%CE%B1-synuclein+seeds%5BTitle%5D)+AND+%22Acta+Neuropathol+Commun%22%5BJournal%5D)">Assembly of α-synuclein and neurodegeneration in the central nervous system of heterozygous M83 mice following the peripheral administration of α-synuclein seeds.</a> Acta Neuropathol Commun. 9 (1), 189(2021).</li>
<li>Abdelmotilib, H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((%CE%B1-Synuclein+fibril-induced+inclusion+spread+in+rats+and+mice+correlates+with+dopaminergic+Neurodegeneration%5BTitle%5D)+AND+%22Neurobiol+Dis%22%5BJournal%5D)">α-Synuclein fibril-induced inclusion spread in rats and mice correlates with dopaminergic Neurodegeneration.</a> Neurobiol Dis. 105, 84-98 (2017).</li>
<li>Tarutani, A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((The+effect+of+fragmented+pathogenic+%CE%B1-Synuclein+seeds+on+prion-like+propagation%5BTitle%5D)+AND+%22J+Biol+Chem%22%5BJournal%5D)">The effect of fragmented pathogenic α-Synuclein seeds on prion-like propagation.</a> J Biol Chem. 291 (36), 18675-18688 (2016).</li>
<li>Taguchi, T., Ikuno, M., Yamakado, H., Takahashi, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Animal+model+for+prodromal+Parkinson%27s+disease%5BTitle%5D)+AND+%22Int+J+Mol+Sci%22%5BJournal%5D)">Animal model for prodromal Parkinson's disease.</a> Int J Mol Sci. 21 (6), 1961(2020).</li>
<li>Bousset, L., Brundin, P., Böckmann, A., Meier, B., Melki, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((An+efficient+procedure+for+removal+and+inactivation+of+alpha-Synuclein+assemblies+from+laboratory+materials%5BTitle%5D)+AND+%22J+Parkinsons+Dis%22%5BJournal%5D)">An efficient procedure for removal and inactivation of alpha-Synuclein assemblies from laboratory materials.</a> J Parkinsons Dis. 6 (1), 143-151 (2016).</li>
<li>Fenyi, A., Coens, A., Bellande, T., Melki, R., Bousset, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/pubmed?term=((Assessment+of+the+efficacy+of+different+procedures+that+remove+and+disassemble+alpha-synuclein%2C+tau+and+A-beta+fibrils+from+laboratory+material+and+surfaces%5BTitle%5D)+AND+%22Sci+Rep%22%5BJournal%5D)">Assessment of the efficacy of different procedures that remove and disassemble alpha-synuclein, tau and A-beta fibrils from laboratory material and surfaces.</a> Sci Rep. 8, 10788(2018).</li>
</ol>

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techniek voor intranasale toediening van α-synucleïne-aggregaten

Technique for Intranasal Administration of &#945;-Synuclein Aggregates

Techniek voor intranasale toediening van α-synucleïne-aggregaten

Parkinson's disease (PD) is a neurodegenerative disorder characterized by the presence of Lewy bodies, which are aggregates of &#945;-synuclein ...

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De ziekte van Parkinson is gerelateerd aan de blootstelling aan pesticiden. Hier laten we een methode om pesticiden met behulp van een maagsonde in de gewenste concentratie en een methode om het effect te analyseren in de alfa-synucleïne accumulatie in het enterisch zenuwstelsel te leveren.

Orale toediening van Rotenon met behulp van een Gavage en beeldanalyse van de Alpha-synucleïne inclusies in het enterisch zenuwstelsel

Werkwijze voor intranasaal toedienen drugs wakker muizen voor de targeting van de hersenen beschreven. Deze methode zorgt voor een herhaalde dosering gedurende een lange periode met behulp van intranasale toediening van het geneesmiddel zonder verdoving, en de neus-tot-brein levering met minimale systemische blootstelling.

Intranasale toediening van CNS Therapeutics naar Awake Muizen

This video demonstrates the immunostaining of neurons treated with alpha-synuclein (αS) aggregates. The neurons are first treated with αS aggregates. They are then fixed, permeabilized, and treated with a blocking solution. Primary antibodies are added, followed by a fluorescently labeled secondary antibodies and a nuclear stain. The sample is then mounted and observed under a microscope.

Immunostaining of Neurons Treated with Alpha-Synuclein Aggregates

This video demonstrates the injection of alpha-synuclein fibrils into a mouse to induce neuroinflammation. The fibrils are injected intraperitoneally into a transgenic mouse expressing mutated alpha-synuclein proteins. Upon reaching the central nervous system, the fibrils enter neurons and induce aggregation of the mutated proteins. The aggregates spread to neighboring neurons, microglia, and astrocytes. Recognition of the aggregates triggers microglia to induce neuroinflammation, damaging the...

Induction of Neuroinflammation in Mice via Injection of Alpha-Synuclein Fibrils

Source: Ullah, I., et.al. A Positioning Device for the Placement of Mice During Intranasal siRNA Delivery to the Central Nervous System. J. Vis. Exp. (2019)This video demonstrates a precise intranasal administration technique for delivering neuron-targeting peptide-siRNA complexes to the mouse brain using a specialized positioning device. Anesthetized mice are secured in a head-down-and-forward position to optimize siRNA inhalation while preventing lung drainage. The targeting peptide...

Intranasal Delivery of siRNA to the Mouse Brain Using a Positioning Device

Source: Kanazawa, T., et al. Novel Methods for Intranasal Administration Under Inhalation Anesthesia to Evaluate Nose-to-Brain Drug Delivery. J. Vis. Exp. (2018)This video demonstrates the intranasal administration of radiolabeled drugs in an anesthetized mouse to achieve nose-to-brain drug delivery. It explains how drugs cross the nasal epithelium and travel via neuronal pathways to reach the brain, as well as how ciliary motion influences drug retention and clearance. Additionally, the video...

Intranasal Drug Administration in Mice via Pipette and Reverse-Cannulation for Nose-to-Brain Drug Delivery

Perifere injectie van alfa-synucleine fibrillen in het peritoneum of de tong van Tg (M83 +/-: GFAP -Luc +/-) muizen, die humaan alfa-synucleine met familiaire A53T mutatie en vuurvlieg luciferase tot expressie brengen, kunnen neuropathologie induceren, waaronder neuroinflammatie in het centrale zenuwstelsel.

Bioluminescentie beeldvorming van ontstekingsprocessen in transgene muizen Na Perifere Enten van alfa-synucleine fibrillen

Het doel van dit protocol is bedoeld als een cel-gebaseerd systeem dat wordt uitgevoerd, de vorming van alpha-synuclein repliceert aggregaten in vivo. Alpha-synuclein intracellulaire insluitsels worden overgeënt in primaire neuronen door de internalisering en verspreiding van exogene toegediend aggregaten van inheemse microsomes-geassocieerde alpha-synuclein geïsoleerd van zieke alpha-synuclein transgene muizen.

Exogene toediening van Alpha-synuclein Microsomes-geassocieerde aggregaten te primaire neuronen als een krachtige cel Model van de vorming van fibrillen

Hier presenteren we een protocol met behulp van een muis positionerings apparaat dat de juiste plaatsing van muizen mogelijk maakt voor de intranasale toediening van een hersen gerichte peptide-siRNA-formulering die effectieve gen-uitschakeling in het centrale zenuwstelsel toelaat.

Een positionerings apparaat voor de plaatsing van muizen tijdens intranasale siRNA levering aan het centrale zenuwstelsel

Het doel van dit artikel is het schetsen van de stappen die nodig zijn voor de generatie van fibrillen van monomeer Alfa-synuclein, latere kwaliteitscontrole, en het gebruik van de voorgevormde fibrillen in vivo.

Generatie van Alfa-Synuclein voorgevormde fibrillen van monomeren en gebruik in vivo

Dit protocol presenteert Rayleigh-opsplitsing als een mild proces voor het aerosoliseren van niet-virale mRNA-vectoren. Regionale afzetting voor aerosoliseerde mRNA-vectoren wordt geëvalueerd met het Alberta Idealized Nasal Inlet (AINI) model. Groene fluorescentieproteïne (GFP)-expressie in menselijke longcellen vertegenwoordigt het behoud van fysisch-chemische en biologische functies van post-aerosoliseerde mRNA-vectoren.

Intranasale afgifte van mRNA-polyplexen via Rayleigh-opbraakaerosolen: een in vitro methode voor neusafzetting en functioneel testen

Leer een eenvoudige intranasale toedieningsmethode voor α-synucleïne-aggregaten in muismodellen om de prionachtige verspreiding naar de olfactorische bol bij de ziekte van Parkinson te bestuderen.

Techniek voor intranasale toediening van α-synucleïne-aggregaten

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