Differentiation and characterization of neurons derived from rat iPSCs.
Cell culture substrates
Electrophysiology
Induced pluripotent stem cells
Neural substrate
Rat neural progenitor cells
Journal
Journal of neuroscience methods
ISSN: 1872-678X
Titre abrégé: J Neurosci Methods
Pays: Netherlands
ID NLM: 7905558
Informations de publication
Date de publication:
15 05 2020
15 05 2020
Historique:
received:
26
11
2019
revised:
12
03
2020
accepted:
17
03
2020
pubmed:
23
3
2020
medline:
27
5
2021
entrez:
23
3
2020
Statut:
ppublish
Résumé
Induced pluripotent stem cells (iPSCs) may be an advantageous source of neuronal cells to repair damage due to neurological disorders or trauma. Additionally, they are promising candidates to develop models to study underlying mechanisms of neurodegenerative diseases. While successful neural differentiation of iPSCs has been reported in mice, protocols detailing the generation of neural cells from rat iPSCs are relatively limited, and their optimization by manipulating cell culture methods has remained unexplored. Here, we describe and compare the effects of four distinct, commonly used substrates on the neuronal differentiation of rat iPSC (riPSC) derived-neural progenitor cells. Our approach is to use substrate coating as a method to enrich differentiated riPSCs for neuronal subtypes with the desired morphology and maturity. We use a combination of electrophysiology, immunofluorescence staining, and Sholl analysis to characterize the cells generated on each substrate over a nine-day time course. The surface coating presented by the cell culture substrate influences the polarity and arborization of differentiating neurons. Polyornithine-laminin coating promoted neuronal arborization and maturation, while Geltrex favored bipolar cells which displayed indicators of functional immaturity. Poly-d-lysine substrate was associated with limited neurite outgrowth and arborization. Gelatin was the least favorable substrate for the growth and differentiation of our cells. Comparison with Existing Method: Rat-derived neural progenitor cells have been previously derived; however, our methods to use substrate coatings to influence morphological and electrical maturity have not been explored previously. Substrate coatings can be selected to enrich differentiated riPSCs for distinctive neuronal morphologies.
Sections du résumé
BACKGROUND
Induced pluripotent stem cells (iPSCs) may be an advantageous source of neuronal cells to repair damage due to neurological disorders or trauma. Additionally, they are promising candidates to develop models to study underlying mechanisms of neurodegenerative diseases. While successful neural differentiation of iPSCs has been reported in mice, protocols detailing the generation of neural cells from rat iPSCs are relatively limited, and their optimization by manipulating cell culture methods has remained unexplored.
NEW METHOD
Here, we describe and compare the effects of four distinct, commonly used substrates on the neuronal differentiation of rat iPSC (riPSC) derived-neural progenitor cells. Our approach is to use substrate coating as a method to enrich differentiated riPSCs for neuronal subtypes with the desired morphology and maturity. We use a combination of electrophysiology, immunofluorescence staining, and Sholl analysis to characterize the cells generated on each substrate over a nine-day time course.
RESULTS
The surface coating presented by the cell culture substrate influences the polarity and arborization of differentiating neurons. Polyornithine-laminin coating promoted neuronal arborization and maturation, while Geltrex favored bipolar cells which displayed indicators of functional immaturity. Poly-d-lysine substrate was associated with limited neurite outgrowth and arborization. Gelatin was the least favorable substrate for the growth and differentiation of our cells. Comparison with Existing Method: Rat-derived neural progenitor cells have been previously derived; however, our methods to use substrate coatings to influence morphological and electrical maturity have not been explored previously.
CONCLUSION
Substrate coatings can be selected to enrich differentiated riPSCs for distinctive neuronal morphologies.
Identifiants
pubmed: 32199944
pii: S0165-0270(20)30116-3
doi: 10.1016/j.jneumeth.2020.108693
pmc: PMC8883348
mid: NIHMS1584098
pii:
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
108693Subventions
Organisme : NINDS NIH HHS
ID : R03 NS095202
Pays : United States
Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.
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