Toolkit/hMORp

hMORp

Construct Pattern·Research·Since 2023

Also known as: human designed MORp

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

Summary

Lastly, a human designed MORp (hMORp) efficiently transduced macaque cortical OPRM1+ cells.

Usefulness & Problems

Why this is useful

hMORp is a human-designed MOR promoter construct used to drive expression in OPRM1+ cells. In the abstract it is specifically reported to efficiently transduce macaque cortical OPRM1+ cells.; transduction of cortical OPRM1+ cells in macaque

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hMORp is a human-designed MOR promoter construct used to drive expression in OPRM1+ cells. In the abstract it is specifically reported to efficiently transduce macaque cortical OPRM1+ cells.

Source:

transduction of cortical OPRM1+ cells in macaque

Problem solved

It extends MOR-cell genetic access into a primate translational context.; genetic access to primate OPRM1+ cells

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It extends MOR-cell genetic access into a primate translational context.

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genetic access to primate OPRM1+ cells

Problem links

genetic access to primate OPRM1+ cells

Literature

It extends MOR-cell genetic access into a primate translational context.

Source:

It extends MOR-cell genetic access into a primate translational context.

Published Workflows

Human OPRM1 and murine Oprm1 promoter driven viral constructs for genetic access to μ-opioidergic cell types.

2023

Objective: Develop viral promoter-driven constructs that provide cell type specific genetic access to MOR+/OPRM1+ cells across species and translational models.

Why it works: The workflow uses promoter regions from Oprm1/OPRM1 to bias transgene expression toward MOR-expressing cells, then validates efficiency, selectivity, and application utility across multiple biological systems.

promoter-driven transgene expression in MOR+/OPRM1+ cellsAAV packagingcross-species validationfunctional application testing

Stages

  1. 1.
    MOR promoter construct design and AAV packaging(library_design)

    This stage creates promoter-driven viral constructs intended to provide genetic access to MOR-expressing cells.

    Selection: Promoter regions upstream of mouse Oprm1 or human OPRM1 were used to design constructs intended to drive expression in MOR+/OPRM1+ cells.

  2. 2.
    Mouse validation of transduction efficiency and selectivity(confirmatory_validation)

    This stage confirms that the murine promoter constructs work in endogenous MOR+ neurons in relevant mouse tissues before broader application.

    Selection: Transduction efficiency and selectivity in endogenous MOR+ neurons in mouse brain, spinal cord, and periphery.

  3. 3.
    Cross-species and translational expression assessment(secondary_characterization)

    This stage tests whether the murine promoter constructs extend beyond mouse into other vertebrate and human-derived systems.

    Selection: Robust expression in rats, shrews, and human iPSC-derived nociceptors.

  4. 4.
    Functional application demonstration(functional_characterization)

    This stage demonstrates that the constructs are not only selective but also useful in downstream neuroscience applications.

    Selection: Usability for in vivo fiber photometry, behavioral chemogenetics, and intersectional genetic strategies.

  5. 5.
    Primate validation of human-designed promoter construct(confirmatory_validation)

    This stage tests a human-designed promoter construct in a primate cortical context to extend the toolkit toward translational use.

    Selection: Efficient transduction of macaque cortical OPRM1+ cells by hMORp.

Taxonomy & Function

Primary hierarchy

Mechanism Branch

Architecture: A reusable architecture pattern for arranging parts into an engineered system.

Target processes

No target processes tagged yet.

Implementation Constraints

cofactor dependency: cofactor requirement unknownencoding mode: genetically encodedimplementation constraint: context specific validationimplementation constraint: payload burdenoperating role: actuator

It requires the human-designed promoter construct and viral delivery into the target system.; human-designed MOR promoter construct; viral delivery required

The abstract only supports macaque cortical validation and does not define broader primate or human in vivo performance.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Observations

successLarge Animalapplication demomacaquecortex

Inferred from claim claim_5 during normalization. hMORp efficiently transduced macaque cortical OPRM1+ cells. Derived from claim claim_5. Quoted text: a human designed MORp (hMORp) efficiently transduced macaque cortical OPRM1+ cells

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Supporting Sources

Ranked Claims

Claim 1application demosupports2023Source 1needs review

mMORp was demonstrated for in vivo fiber photometry, behavioral chemogenetics, and intersectional genetic strategies.

The use of mMORp for in vivo fiber photometry, behavioral chemogenetics, and intersectional genetic strategies is also demonstrated.
Claim 2cross species applicabilitysupports2023Source 1needs review

mMORp showed robust expression in rats, shrews, and human iPSC-derived nociceptors.

additional studies revealing robust expression in rats, shrews, and human induced pluripotent stem cell (iPSC)-derived nociceptors
Claim 3tool developmentsupports2023Source 1needs review

The authors developed a catalog of MOR promoter based constructs packaged into AAV vectors that drive transgene expression in MOR+ cells.

we developed a catalog of MOR promoter (MORp) based constructs packaged into adeno-associated viral vectors that drive transgene expression in MOR+ cells
Claim 4validation resultsupports2023Source 1needs review

hMORp efficiently transduced macaque cortical OPRM1+ cells.

a human designed MORp (hMORp) efficiently transduced macaque cortical OPRM1+ cells
Claim 5validation resultsupports2023Source 1needs review

mMORp constructs were validated for transduction efficiency and selectivity in endogenous MOR+ neurons in the brain, spinal cord, and periphery of mice.

mMORp constructs designed from promoter regions upstream of the mouse Oprm1 gene (mMORp) were validated for transduction efficiency and selectivity in endogenous MOR+ neurons in the brain, spinal cord, and periphery of mice

Approval Evidence

1 source1 linked approval claimfirst-pass slug hmorp
Lastly, a human designed MORp (hMORp) efficiently transduced macaque cortical OPRM1+ cells.

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validation resultsupports

hMORp efficiently transduced macaque cortical OPRM1+ cells.

a human designed MORp (hMORp) efficiently transduced macaque cortical OPRM1+ cells

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Comparisons

Source-backed strengths

efficiently transduced macaque cortical OPRM1+ cells

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efficiently transduced macaque cortical OPRM1+ cells

Compared with hemisynthetic thiostrepton analogues

hMORp and hemisynthetic thiostrepton analogues address a similar problem space.

Shared frame: same top-level item type

Compared with mMORp

hMORp and mMORp address a similar problem space.

Shared frame: same top-level item type

Strengths here: looks easier to implement in practice.

Compared with split-ring metamaterial sensor with luxuriant gaps

hMORp and split-ring metamaterial sensor with luxuriant gaps address a similar problem space.

Shared frame: same top-level item type

Ranked Citations

  1. 1.
    StructuralSource 1MED2023Claim 1Claim 2Claim 3

    Extracted from this source document.