Toolkit/simultaneous fluorescence intensity analysis software for neighboring cells

simultaneous fluorescence intensity analysis software for neighboring cells

Assay Method·Research·Since 2018

Taxonomy: Technique Branch / Method. Workflows sit above the mechanism and technique branches rather than replacing them.

Summary

To simplify measurements of fluorescence intensity in a complex tissue we developed software that allows simultaneous analyses of fluorescence intensities of several neighbouring cells.

Usefulness & Problems

Why this is useful

The software allows simultaneous analysis of fluorescence intensities from several neighboring cells in complex tissue.; simultaneous fluorescence quantification across several neighboring cells; simplifying analysis in complex tissues

Source:

The software allows simultaneous analysis of fluorescence intensities from several neighboring cells in complex tissue.

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simultaneous fluorescence quantification across several neighboring cells

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simplifying analysis in complex tissues

Problem solved

It simplifies fluorescence intensity measurements in complex tissues where multiple adjacent cells must be analyzed together.; reduces analysis complexity when measuring fluorescence intensities in complex tissue

Source:

It simplifies fluorescence intensity measurements in complex tissues where multiple adjacent cells must be analyzed together.

Source:

reduces analysis complexity when measuring fluorescence intensities in complex tissue

Problem links

reduces analysis complexity when measuring fluorescence intensities in complex tissue

Literature

It simplifies fluorescence intensity measurements in complex tissues where multiple adjacent cells must be analyzed together.

Source:

It simplifies fluorescence intensity measurements in complex tissues where multiple adjacent cells must be analyzed together.

Published Workflows

Objective: Quantify passive movement of protein between selected plant cells to investigate symplasmic cell-to-cell connectivity in Arabidopsis root tissue.

Why it works: Selected cells can be optically activated using photoswitchable DRONPA-s, after which movement into neighboring cells can be compared by fluorescence measurements.

plasmodesmata-mediated symplasmic transportreversible photoswitching of DRONPA-s fluorescencetransgenic expressionconfocal microscopyphotoactivation/photoswitchingfluorescence intensity analysis

Steps

  1. 1.
    Express DRONPA-s in transgenic Arabidopsisengineered fluorescent reporter system

    Provide a photoswitchable fluorescent protein in Arabidopsis root cells for movement measurements.

    The reporter must be present in plant cells before selected cells can be optically activated and tracked.

  2. 2.
    Activate DRONPA-s fluorescence in selected root meristem cells by confocal illuminationphotoswitchable reporter being activated

    Create a localized fluorescent starting population in selected cells for subsequent movement comparison.

    Localized activation is needed before neighboring-cell movement can be measured.

  3. 3.
    Compare movement of DRONPA-s from activated cells into neighboring cellsreporter system and fluorescence analysis software

    Quantify passive intercellular protein movement and compare connectivity between cell types.

    Movement can only be assessed after localized activation has established the source cells.

Taxonomy & Function

Primary hierarchy

Technique Branch

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

Target processes

No target processes tagged yet.

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationoperating role: sensor

The abstract implies that fluorescence imaging data from the DRONPA-s assay are required, but does not provide further software or hardware details.; requires fluorescence imaging data from neighboring cells

The abstract does not indicate that the software performs biological interpretation beyond fluorescence intensity analysis.; software is unnamed in the abstract; implementation details and availability are not provided in the abstract

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1application resultsupports2018Source 1needs review

In the Arabidopsis root meristem assay, pericycle cells showed the highest efflux capacity with good lateral connectivity.

Our analyses showed that pericycle cells display the highest efflux capacity with a good lateral connectivity.
Claim 2application resultsupports2018Source 1needs review

In the Arabidopsis root meristem assay, root cap cells showed the lowest efflux of DRONPA-s.

In contrast, root cap cells showed the lowest efflux of DRONPA-s.
Claim 3application resultsupports2018Source 1needs review

Quiescent centre plasmodesmata mediated stronger efflux into columella cells than into stele initials.

Plasmodesmata of quiescent centre cells mediated a stronger efflux into columella cells than into stele initials.
Claim 4tool capabilitysupports2018Source 1needs review

The developed software allows simultaneous analysis of fluorescence intensities of several neighboring cells to simplify measurements in complex tissue.

To simplify measurements of fluorescence intensity in a complex tissue we developed software that allows simultaneous analyses of fluorescence intensities of several neighbouring cells.
Claim 5tool capabilitysupports2018Source 1needs review

The DRONPA-s system provides a non-invasive method to quantify passive movement of protein between selected cells, including in deeper tissue layers.

Here we report on an elegant non-invasive method to quantify the passive movement of protein between selected cells even in deeper tissue layers.
Claim 6tool mechanismsupports2018Source 1needs review

The DRONPA-s system is based on a fluorescent protein that can be switched on and off repeatedly by illumination with different light qualities.

The system is based on the fluorescent protein DRONPA-s, which can be switched on and off repeatedly by illumination with different light qualities.
Claim 7tool performancesupports2018Source 1needs review

The DRONPA-s system generates reproducible data and is a valuable tool for studying symplasmic connectivity.

Our DRONPA-s system generates reproducible data and is a valuable tool for studying symplasmic connectivity.

Approval Evidence

1 source1 linked approval claimfirst-pass slug simultaneous-fluorescence-intensity-analysis-software-for-neighboring-cells
To simplify measurements of fluorescence intensity in a complex tissue we developed software that allows simultaneous analyses of fluorescence intensities of several neighbouring cells.

Source:

tool capabilitysupports

The developed software allows simultaneous analysis of fluorescence intensities of several neighboring cells to simplify measurements in complex tissue.

To simplify measurements of fluorescence intensity in a complex tissue we developed software that allows simultaneous analyses of fluorescence intensities of several neighbouring cells.

Source:

Comparisons

Source-stated alternatives

No alternative analysis software or manual workflow is explicitly named in the abstract.

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No alternative analysis software or manual workflow is explicitly named in the abstract.

Source-backed strengths

supports simultaneous analysis of several neighboring cells

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supports simultaneous analysis of several neighboring cells

simultaneous fluorescence intensity analysis software for neighboring cells and Langendorff perfused heart electrical recordings address a similar problem space.

Shared frame: same top-level item type

Strengths here: looks easier to implement in practice.

simultaneous fluorescence intensity analysis software for neighboring cells and native green gel system address a similar problem space.

Shared frame: same top-level item type

Strengths here: looks easier to implement in practice.

simultaneous fluorescence intensity analysis software for neighboring cells and sub-picosecond pump-probe analysis of bacteriorhodopsin pigments address a similar problem space.

Shared frame: same top-level item type

Strengths here: looks easier to implement in practice.

Ranked Citations

  1. 1.
    StructuralSource 1The Plant Journal2018Claim 1Claim 2Claim 3

    Extracted from this source document.