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JoVE Journal Neuroscience
Laser Microdissection-Based Protocol for the LC-MS/MS Analysis of the Proteomic Profile of Neuromelanin Granules
 

Laser Microdissection-Based Protocol for the LC-MS/MS Analysis of the Proteomic Profile of Neuromelanin Granules

Article DOI: 10.3791/63289-v • 07:35 min • December 16th, 2021
December 16th, 2021 •
1,2, 1,2, 1,2, 1,2, 1,2, 3,4, 5, 1,2, *1,2, *1,2
1Medizinisches Proteom-Center, Medical Faculty, Ruhr-University Bochum, 2Medical Proteome Analysis, Center for Proteindiagnostics (PRODI), Ruhr-University Bochum, 3Center of Mental Health; Clinic and Policlinic for Psychiatry, Psychosomatics and Psychotherapy, University Hospital Wuerzburg, 4Psychiatry Department of Clinical Research, University of Southern Denmark Odense University Hospital, 5Center of Mental Health, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Wuerzburg, University of Wuerzburg
* These authors contributed equally

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Resumen
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A robust protocol is presented here for isolating neuromelanin granules from human post-mortem substantia nigra pars compacta tissue via laser microdissection. This revised and optimized protocol massively minimizes the required time for sample collection, reduces the required sample amount, and enhances the identification and quantification of proteins by LC-MS/MS analysis.

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Laser Microdissection LC-MS/MS Analysis Proteomic Profile Neuromelanin Granules Spatially Resolved Changes Limited Sample Material Postmortem Brain Tissue Single Cells Healthy And Disease Conditions Overview Scan Tissue Section Scan Function Neuromelanin Granule Selection Threshold Settings Laser Settings Sample Collection Tube Ultrapure Water Robo Mover
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