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Enzymatic Dissociation Induces Transcriptional and Proteotype Bias in Brain Cell Populations

Mattei, Daniele; Ivanov, Andranik; van Oostrum, Marc; Pantelyushin, Stanislav; Richetto, Juliet; Mueller, Flavia; Beffinger, Michal; Schellhammer, Linda; vom Berg, Johannes; Wollscheid, Bernd; Beule, Dieter; Paolicelli, Rosa Chiara; Meyer, Urs (2020). Enzymatic Dissociation Induces Transcriptional and Proteotype Bias in Brain Cell Populations. International Journal of Molecular Sciences, 21(21):7944.

Abstract

Different cell isolation techniques exist for transcriptomic and proteotype profiling of brain cells. Here, we provide a systematic investigation of the influence of different cell isolation protocols on transcriptional and proteotype profiles in mouse brain tissue by taking into account single-cell transcriptomics of brain cells, proteotypes of microglia and astrocytes, and flow cytometric analysis of microglia. We show that standard enzymatic digestion of brain tissue at 37 °C induces profound and consistent alterations in the transcriptome and proteotype of neuronal and glial cells, as compared to an optimized mechanical dissociation protocol at 4 °C. These findings emphasize the risk of introducing technical biases and biological artifacts when implementing enzymatic digestion-based isolation methods for brain cell analyses.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinärwissenschaftliches Institut > Institute of Veterinary Pharmacology and Toxicology
Dewey Decimal Classification:570 Life sciences; biology
Scopus Subject Areas:Physical Sciences > Catalysis
Life Sciences > Molecular Biology
Physical Sciences > Spectroscopy
Physical Sciences > Computer Science Applications
Physical Sciences > Physical and Theoretical Chemistry
Physical Sciences > Organic Chemistry
Physical Sciences > Inorganic Chemistry
Uncontrolled Keywords:Physical and Theoretical Chemistry, Inorganic Chemistry, Organic Chemistry, Spectroscopy, Molecular Biology, Catalysis, General Medicine, Computer Science Applications
Language:English
Date:26 October 2020
Deposited On:18 Feb 2021 10:46
Last Modified:23 Jun 2025 02:10
Publisher:MDPI Publishing
ISSN:1422-0067
OA Status:Gold
Free access at:PubMed ID. An embargo period may apply.
Publisher DOI:https://doi.org/10.3390/ijms21217944
PubMed ID:33114694
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  • Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)

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