Toolkit/CRISPRoff

CRISPRoff

Engineering Method·Research·Since 2020

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

Summary

CRISPRoff is an engineering method for light-induced degradation of single-guide RNA (sgRNA) that inactivates the CRISPR ribonucleoprotein. It enables spatiotemporal attenuation of CRISPR-Cas9 genome editing in cells through selective illumination.

Usefulness & Problems

Why this is useful

CRISPRoff is useful for imposing optical control over CRISPR editing activity in cells. The reported system allows titratable editing efficiency and spatial patterning via selective illumination, supporting experiments that require temporal and positional restriction of genome editing.

Source:

Here we show that light-induced inactivation of ribonucleoprotein attenuates genome editing within cells

Problem solved

This method addresses the problem of how to turn down or locally restrict CRISPR-Cas9 activity after delivery in cells. According to the cited study, it does so by using light-induced sgRNA degradation to attenuate genome editing.

Source:

This uncontrolled reaction can lead to unintended consequences including off-target editing and chromosomal translocations.

Published Workflows

Objective: Combine CRISPR-based endogenous gene regulation with synthetic Notch signaling to record state-specific cell-cell interactions and intentionally influence the outcomes of those interactions in engineered human cells.

Why it works: The workflow is presented as effective because artificial receptors provide defined input-to-output linkages for cell decision-making, while CRISPR-based strategies allow endogenous gene programs to be genetically or epigenetically manipulated to control which interactions are recorded and how cells respond.

epigenetic manipulation of endogenous gene expressionartificial receptor-mediated cell-cell signalingconditional relay of cell-state-dependent interaction signalsCRISPR-based genetic manipulationCRISPR-based epigenetic manipulationsynthetic receptor engineering

Taxonomy & Function

Primary hierarchy

Technique Branch

Method: A concrete method used to build, optimize, or evolve an engineered system.

Techniques

No technique tags yet.

Target processes

degradationeditinglocalization

Input: Light

Implementation Constraints

The available evidence indicates that the method relies on light input and is built around sgRNA degradation to inactivate the CRISPR ribonucleoprotein in cells. The supplied material does not provide construct architecture, required cofactors, expression strategy, or illumination parameters.

The provided evidence is limited to a single source and does not specify the photochemical design, illumination wavelength, degradation machinery, or quantitative performance metrics. Independent replication, organismal breadth, and compatibility across Cas systems or delivery formats are not established by the supplied evidence.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1applicationsupports2024Source 2needs review

Signal-competent interactions mediated through the platform can direct differentiation of human embryonic stem cells toward pre-selected fates based on assigned synNotch outputs.

Further, such signal-competent interactions can be used to direct differentiation of human embryonic stem cells toward pre-selected fates based on assigned synNotch outputs.
Claim 2capabilitysupports2024Source 2needs review

The combined CRISPR-based and synthetic Notch approach enables conditional recording of interactions between human cells based on expression of a state-specific marker in a subset of cells.

Our approach gives rise to the ability to conditionally record interactions between human cells, where the record of engagement depends on expression of a state-specific marker of a subset of cells in a population.
Claim 3modulationsupports2024Source 2needs review

CRISPR-based manipulation of native gene expression profiles can bias outcomes of cell engagement histories in a targeted manner.

We also implemented CRISPR-based manipulation of native gene expression profiles to bias outcomes of cell engagement histories in a targeted manner.
Claim 4control capabilitysupports2020Source 1needs review

CRISPRoff allows titratable levels of editing efficiency and spatial patterning via selective illumination.

allows for titratable levels of editing efficiency and spatial patterning via selective illumination
Claim 5control capabilitysupports2020Source 1needs review

CRISPRoff allows titratable levels of editing efficiency and spatial patterning via selective illumination.

allows for titratable levels of editing efficiency and spatial patterning via selective illumination
Claim 6control capabilitysupports2020Source 1needs review

CRISPRoff allows titratable levels of editing efficiency and spatial patterning via selective illumination.

allows for titratable levels of editing efficiency and spatial patterning via selective illumination
Claim 7control capabilitysupports2020Source 1needs review

CRISPRoff allows titratable levels of editing efficiency and spatial patterning via selective illumination.

allows for titratable levels of editing efficiency and spatial patterning via selective illumination
Claim 8control capabilitysupports2020Source 1needs review

CRISPRoff allows titratable levels of editing efficiency and spatial patterning via selective illumination.

allows for titratable levels of editing efficiency and spatial patterning via selective illumination
Claim 9control capabilitysupports2020Source 1needs review

CRISPRoff allows titratable levels of editing efficiency and spatial patterning via selective illumination.

allows for titratable levels of editing efficiency and spatial patterning via selective illumination
Claim 10control capabilitysupports2020Source 1needs review

CRISPRoff allows titratable levels of editing efficiency and spatial patterning via selective illumination.

allows for titratable levels of editing efficiency and spatial patterning via selective illumination
Claim 11functional effectsupports2020Source 1needs review

Light-induced inactivation of the CRISPR ribonucleoprotein attenuates genome editing within cells.

Here we show that light-induced inactivation of ribonucleoprotein attenuates genome editing within cells
Claim 12functional effectsupports2020Source 1needs review

Light-induced inactivation of the CRISPR ribonucleoprotein attenuates genome editing within cells.

Here we show that light-induced inactivation of ribonucleoprotein attenuates genome editing within cells
Claim 13functional effectsupports2020Source 1needs review

Light-induced inactivation of the CRISPR ribonucleoprotein attenuates genome editing within cells.

Here we show that light-induced inactivation of ribonucleoprotein attenuates genome editing within cells
Claim 14functional effectsupports2020Source 1needs review

Light-induced inactivation of the CRISPR ribonucleoprotein attenuates genome editing within cells.

Here we show that light-induced inactivation of ribonucleoprotein attenuates genome editing within cells
Claim 15functional effectsupports2020Source 1needs review

Light-induced inactivation of the CRISPR ribonucleoprotein attenuates genome editing within cells.

Here we show that light-induced inactivation of ribonucleoprotein attenuates genome editing within cells
Claim 16functional effectsupports2020Source 1needs review

Light-induced inactivation of the CRISPR ribonucleoprotein attenuates genome editing within cells.

Here we show that light-induced inactivation of ribonucleoprotein attenuates genome editing within cells
Claim 17functional effectsupports2020Source 1needs review

Light-induced inactivation of the CRISPR ribonucleoprotein attenuates genome editing within cells.

Here we show that light-induced inactivation of ribonucleoprotein attenuates genome editing within cells
Claim 18method developmentsupports2020Source 1needs review

CRISPRoff is a method for light-induced degradation of sgRNA.

To address this, we develop a method for light-induced degradation of sgRNA termed CRISPRoff.
Claim 19method developmentsupports2020Source 1needs review

CRISPRoff is a method for light-induced degradation of sgRNA.

To address this, we develop a method for light-induced degradation of sgRNA termed CRISPRoff.
Claim 20method developmentsupports2020Source 1needs review

CRISPRoff is a method for light-induced degradation of sgRNA.

To address this, we develop a method for light-induced degradation of sgRNA termed CRISPRoff.
Claim 21method developmentsupports2020Source 1needs review

CRISPRoff is a method for light-induced degradation of sgRNA.

To address this, we develop a method for light-induced degradation of sgRNA termed CRISPRoff.
Claim 22method developmentsupports2020Source 1needs review

CRISPRoff is a method for light-induced degradation of sgRNA.

To address this, we develop a method for light-induced degradation of sgRNA termed CRISPRoff.
Claim 23method developmentsupports2020Source 1needs review

CRISPRoff is a method for light-induced degradation of sgRNA.

To address this, we develop a method for light-induced degradation of sgRNA termed CRISPRoff.
Claim 24method developmentsupports2020Source 1needs review

CRISPRoff is a method for light-induced degradation of sgRNA.

To address this, we develop a method for light-induced degradation of sgRNA termed CRISPRoff.
Claim 25problem statementsupports2020Source 1needs review

Uncontrolled CRISPR-Cas9 activity after cellular introduction can lead to off-target editing and chromosomal translocations.

This uncontrolled reaction can lead to unintended consequences including off-target editing and chromosomal translocations.
Claim 26problem statementsupports2020Source 1needs review

Uncontrolled CRISPR-Cas9 activity after cellular introduction can lead to off-target editing and chromosomal translocations.

This uncontrolled reaction can lead to unintended consequences including off-target editing and chromosomal translocations.
Claim 27problem statementsupports2020Source 1needs review

Uncontrolled CRISPR-Cas9 activity after cellular introduction can lead to off-target editing and chromosomal translocations.

This uncontrolled reaction can lead to unintended consequences including off-target editing and chromosomal translocations.
Claim 28problem statementsupports2020Source 1needs review

Uncontrolled CRISPR-Cas9 activity after cellular introduction can lead to off-target editing and chromosomal translocations.

This uncontrolled reaction can lead to unintended consequences including off-target editing and chromosomal translocations.
Claim 29problem statementsupports2020Source 1needs review

Uncontrolled CRISPR-Cas9 activity after cellular introduction can lead to off-target editing and chromosomal translocations.

This uncontrolled reaction can lead to unintended consequences including off-target editing and chromosomal translocations.
Claim 30problem statementsupports2020Source 1needs review

Uncontrolled CRISPR-Cas9 activity after cellular introduction can lead to off-target editing and chromosomal translocations.

This uncontrolled reaction can lead to unintended consequences including off-target editing and chromosomal translocations.
Claim 31problem statementsupports2020Source 1needs review

Uncontrolled CRISPR-Cas9 activity after cellular introduction can lead to off-target editing and chromosomal translocations.

This uncontrolled reaction can lead to unintended consequences including off-target editing and chromosomal translocations.

Approval Evidence

2 sources6 linked approval claimsfirst-pass slug crisproff
Use of CRISPRoff and synthetic Notch to modulate and relay endogenous gene expression programs in engineered cells.

Source:

To address this, we develop a method for light-induced degradation of sgRNA termed CRISPRoff.

Source:

capabilitysupports

The combined CRISPR-based and synthetic Notch approach enables conditional recording of interactions between human cells based on expression of a state-specific marker in a subset of cells.

Our approach gives rise to the ability to conditionally record interactions between human cells, where the record of engagement depends on expression of a state-specific marker of a subset of cells in a population.

Source:

modulationsupports

CRISPR-based manipulation of native gene expression profiles can bias outcomes of cell engagement histories in a targeted manner.

We also implemented CRISPR-based manipulation of native gene expression profiles to bias outcomes of cell engagement histories in a targeted manner.

Source:

control capabilitysupports

CRISPRoff allows titratable levels of editing efficiency and spatial patterning via selective illumination.

allows for titratable levels of editing efficiency and spatial patterning via selective illumination

Source:

functional effectsupports

Light-induced inactivation of the CRISPR ribonucleoprotein attenuates genome editing within cells.

Here we show that light-induced inactivation of ribonucleoprotein attenuates genome editing within cells

Source:

method developmentsupports

CRISPRoff is a method for light-induced degradation of sgRNA.

To address this, we develop a method for light-induced degradation of sgRNA termed CRISPRoff.

Source:

problem statementsupports

Uncontrolled CRISPR-Cas9 activity after cellular introduction can lead to off-target editing and chromosomal translocations.

This uncontrolled reaction can lead to unintended consequences including off-target editing and chromosomal translocations.

Source:

Comparisons

Source-backed strengths

The source reports that CRISPRoff provides spatiotemporal control of CRISPR editing in cells. It also supports titratable levels of editing efficiency and spatial patterning under selective illumination, indicating controllable optical modulation of CRISPR activity.

Ranked Citations

  1. 1.
    StructuralSource 1Nature Communications2020Claim 4Claim 5Claim 6

    Extracted from this source document.

  2. 2.

    Extracted from this source document.