scholarly journals Graphene foam as a biocompatible scaffold for culturing human neurons

2018 ◽  
Vol 5 (3) ◽  
pp. 171364 ◽  
Author(s):  
Giovanna M. D'Abaco ◽  
Cristiana Mattei ◽  
Babak Nasr ◽  
Emma J. Hudson ◽  
Abdullah J. Alshawaf ◽  
...  

In this study, we explore the use of electrically active graphene foam as a scaffold for the culture of human-derived neurons. Human embryonic stem cell (hESC)-derived cortical neurons fated as either glutamatergic or GABAergic neuronal phenotypes were cultured on graphene foam. We show that graphene foam is biocompatible for the culture of human neurons, capable of supporting cell viability and differentiation of hESC-derived cortical neurons. Based on the findings, we propose that graphene foam represents a suitable scaffold for engineering neuronal tissue and warrants further investigation as a model for understanding neuronal maturation, function and circuit formation.

F1000Research ◽  
2013 ◽  
Vol 2 ◽  
pp. 35 ◽  
Author(s):  
Kyle S Hubbard ◽  
Ian M Gut ◽  
Megan E Lyman ◽  
Patrick M McNutt

Using paired-end RNA sequencing, we have quantified the deep transcriptional changes that occur during differentiation of murine embryonic stem cells into a highly enriched population of glutamatergic cortical neurons. These data provide a detailed and nuanced account of longitudinal changes in the transcriptome during neurogenesis and neuronal maturation, starting from mouse embryonic stem cells and progressing through neuroepithelial stem cell induction, radial glial cell formation, neurogenesis, neuronal maturation and cortical patterning. Understanding the transcriptional mechanisms underlying the differentiation of stem cells into mature, glutamatergic neurons of cortical identity has myriad applications, including the elucidation of mechanisms of cortical patterning; identification of neurogenic processes; modeling of disease states; detailing of the host cell response to neurotoxic stimuli; and determination of potential therapeutic targets. In future work we anticipate correlating changes in longitudinal gene expression to other cell parameters, including neuronal function as well as characterizations of the proteome and metabolome. In this data article, we describe the methods used to produce the data and present the raw sequence read data in FASTQ files, sequencing run statistics and a summary flatfile of raw counts for 22,164 genes across 31 samples, representing 3-5 biological replicates at each timepoint. We propose that this data will be a valuable contribution to diverse research efforts in bioinformatics, stem cell research and developmental neuroscience studies.


PLoS ONE ◽  
2015 ◽  
Vol 10 (8) ◽  
pp. e0134907 ◽  
Author(s):  
Yangfei Xiang ◽  
Kun-Yong Kim ◽  
Joel Gelernter ◽  
In-Hyun Park ◽  
Huiping Zhang

Viruses ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1004 ◽  
Author(s):  
Sang Ah Yi ◽  
Ki Hong Nam ◽  
Jihye Yun ◽  
Dongmin Gim ◽  
Daeho Joe ◽  
...  

Since the global outbreak of SARS-CoV-2 (COVID-19), infections of diverse human organs along with multiple symptoms continue to be reported. However, the susceptibility of the brain to SARS-CoV-2, and the mechanisms underlying neurological infection are still elusive. Here, we utilized human embryonic stem cell-derived brain organoids and monolayer cortical neurons to investigate infection of brain with pseudotyped SARS-CoV-2 viral particles. Spike-containing SARS-CoV-2 pseudovirus infected neural layers within brain organoids. The expression of ACE2, a host cell receptor for SARS-CoV-2, was sustained during the development of brain organoids, especially in the somas of mature neurons, while remaining rare in neural stem cells. However, pseudotyped SARS-CoV-2 was observed in the axon of neurons, which lack ACE2. Neural infectivity of SARS-CoV-2 pseudovirus did not increase in proportion to viral load, but only 10% of neurons were infected. Our findings demonstrate that brain organoids provide a useful model for investigating SARS-CoV-2 entry into the human brain and elucidating the susceptibility of the brain to SARS-CoV-2.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ana Gonzalez-Ramos ◽  
Eliška Waloschková ◽  
Apostolos Mikroulis ◽  
Zaal Kokaia ◽  
Johan Bengzon ◽  
...  

AbstractGamma-aminobutyric acid (GABA)-releasing interneurons modulate neuronal network activity in the brain by inhibiting other neurons. The alteration or absence of these cells disrupts the balance between excitatory and inhibitory processes, leading to neurological disorders such as epilepsy. In this regard, cell-based therapy may be an alternative therapeutic approach. We generated light-sensitive human embryonic stem cell (hESC)-derived GABAergic interneurons (hdIN) and tested their functionality. After 35 days in vitro (DIV), hdINs showed electrophysiological properties and spontaneous synaptic currents comparable to mature neurons. In co-culture with human cortical neurons and after transplantation (AT) into human brain tissue resected from patients with drug-resistant epilepsy, light-activated channelrhodopsin-2 (ChR2) expressing hdINs induced postsynaptic currents in human neurons, strongly suggesting functional efferent synapse formation. These results provide a proof-of-concept that hESC-derived neurons can integrate and modulate the activity of a human host neuronal network. Therefore, this study supports the possibility of precise temporal control of network excitability by transplantation of light-sensitive interneurons.


Author(s):  
Wamaitha SE ◽  
Grybel KJ ◽  
Alanis-Lobato G ◽  
Gerri C ◽  
Ogushi S ◽  
...  

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