1e26 / BioControl Toolkit DB

Summary

Well-established techniques based on current/voltage clamp, optogenetics, calcium imaging, and Micro-Electrode Arrays (MEAs) are proposed for monitoring intra- and extra-cellular responses underlying neuronal dynamics and functional connections.

Usefulness & Problems

Why this is useful

MEAs are described as a well-established approach for monitoring responses underlying neuronal dynamics and functional connections in brain organoids.; monitoring extra-cellular responses; studying neuronal dynamics; studying functional connections in organoids

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MEAs are described as a well-established approach for monitoring responses underlying neuronal dynamics and functional connections in brain organoids.

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monitoring extra-cellular responses

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studying neuronal dynamics

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studying functional connections in organoids

Problem solved

They support functional characterization of organoid network activity, especially extracellular responses.; providing extracellular functional monitoring of organoid neural activity

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They support functional characterization of organoid network activity, especially extracellular responses.

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providing extracellular functional monitoring of organoid neural activity

Problem links

providing extracellular functional monitoring of organoid neural activity

Literature

They support functional characterization of organoid network activity, especially extracellular responses.

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They support functional characterization of organoid network activity, especially extracellular responses.

Published Workflows

Experimental and Computational Methods for the Study of Cerebral Organoids: A Review

2019

Objective: Generate and investigate cerebral organoids using a quantitative framework that combines organoid generation, computational assessment, and structural and functional characterization.

Why it works: The review describes a complementary strategy in which generation protocols are followed by computational assessment of formation, organization, and resource uptake, and then by structural and functional characterization of neuronal networks.

organoid formationorganoid organizationneuronal dynamicsfunctional connectivityorganoid generation protocolscomputational modelingstructural characterizationfunctional characterizationcurrent/voltage clampoptogeneticscalcium imagingmicro-electrode arrays

Stages

1.
Organoid generation protocols(library_build)
This stage establishes the cerebral organoid model system that is subsequently assessed and characterized.
Selection: Generation of cerebral organoid models from human cells using literature protocols.
2.
Computational assessment of formation, organization, and resource uptake(in_silico_filter)
The review identifies a lack of quantitative framework and presents computational models as a way to assess key organoid properties.
Selection: Assessment of organoid formation, organization, and resource uptake using computational models.
3.
Structural characterization of brain organoid networks(functional_characterization)
This stage characterizes the organization of organoid neural networks beyond gross formation.
Selection: Experimental approaches for studying single neuron morphology and connections at cellular and sub-cellular resolution.
4.
Functional monitoring of neuronal dynamics and connections(confirmatory_validation)
Functional assays are used to evaluate neuronal dynamics and connectivity after organoid generation and broader assessment.
Selection: Use of current/voltage clamp, optogenetics, calcium imaging, and MEAs to monitor intra- and extra-cellular responses.

Taxonomy & Function

Primary hierarchy

Technique Branch

Method: A concrete measurement method used to characterize an engineered system.

Mechanisms

extracellular electrophysiological recording

Techniques

Functional Assay

Target processes

No target processes tagged yet.

Input: Light

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: spectral hardware requirementoperating role: sensor

They require micro-electrode array hardware and organoid preparations suitable for extracellular recording. The abstract does not provide platform details.; requires MEA hardware and organoid compatibility with extracellular recording

The abstract does not support claims about single-cell resolution, standardization, or correction of physiological limitations.; the abstract does not specify array format, spatial resolution, or organoid interfacing constraints

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Source 1review2019Frontiers in Neuroscience

1 ranked citation 3 ranked claims Citation 1 Claim 1 Claim 2 Claim 3

Ranked Claims

Claim 1framework gapsupports2019Source 1needs review

A quantitative framework for generating and investigating cerebral organoids is lacking.

Claim 2functional assay usesupports2019Source 1needs review

Current/voltage clamp, optogenetics, calcium imaging, and MEAs are proposed as well-established techniques for monitoring responses underlying neuronal dynamics and functional connections in brain organoids.

Claim 3method scopesupports2019Source 1needs review

Computational models are used to assess cerebral organoid formation, organization, and resource uptake.

Approval Evidence

1 source1 linked approval claimfirst-pass slug micro-electrode-arrays

Well-established techniques based on current/voltage clamp, optogenetics, calcium imaging, and Micro-Electrode Arrays (MEAs) are proposed for monitoring intra- and extra-cellular responses underlying neuronal dynamics and functional connections.

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functional assay usesupports

Current/voltage clamp, optogenetics, calcium imaging, and MEAs are proposed as well-established techniques for monitoring responses underlying neuronal dynamics and functional connections in brain organoids.

Source:

Comparisons

Source-stated alternatives