Toolkit/barcoded Cre recombinase mRNA barcode platform

barcoded Cre recombinase mRNA barcode platform

Assay Method·Research·Since 2026

Also known as: barcode platform, multiplexed LNP barcoding

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

Summary

we report a broadly compatible barcoded Cre recombinase mRNA barcode platform that enables multiplexed LNP tracking in vivo in tdTomato reporter mice

Usefulness & Problems

Why this is useful

This platform uses barcoded Cre recombinase mRNA to track multiple LNP formulations in vivo in tdTomato reporter mice. The abstract presents it as a multiplexed readout for comparing delivery kinetics and tropism across nanoparticles.; multiplexed in vivo tracking of LNPs; systematic kinetic studies of LNP delivery; distinguishing similar LNP formulations with different biological outcomes; identifying nanoparticles with hepatic zonal bias and extrahepatic tropism

Source:

This platform uses barcoded Cre recombinase mRNA to track multiple LNP formulations in vivo in tdTomato reporter mice. The abstract presents it as a multiplexed readout for comparing delivery kinetics and tropism across nanoparticles.

Source:

multiplexed in vivo tracking of LNPs

Source:

systematic kinetic studies of LNP delivery

Source:

distinguishing similar LNP formulations with different biological outcomes

Source:

identifying nanoparticles with hepatic zonal bias and extrahepatic tropism

Problem solved

It is intended to accelerate LNP discovery and optimization by replacing low-throughput workflows with multiplexed in vivo characterization. The platform also helps separate nanoparticles with distinct biological outcomes despite similar formulation series.; addresses low throughput LNP discovery and optimization workflows; enables higher resolution characterization of diverse LNPs in vivo

Source:

It is intended to accelerate LNP discovery and optimization by replacing low-throughput workflows with multiplexed in vivo characterization. The platform also helps separate nanoparticles with distinct biological outcomes despite similar formulation series.

Source:

addresses low throughput LNP discovery and optimization workflows

Source:

enables higher resolution characterization of diverse LNPs in vivo

Problem links

addresses low throughput LNP discovery and optimization workflows

Literature

It is intended to accelerate LNP discovery and optimization by replacing low-throughput workflows with multiplexed in vivo characterization. The platform also helps separate nanoparticles with distinct biological outcomes despite similar formulation series.

Source:

It is intended to accelerate LNP discovery and optimization by replacing low-throughput workflows with multiplexed in vivo characterization. The platform also helps separate nanoparticles with distinct biological outcomes despite similar formulation series.

enables higher resolution characterization of diverse LNPs in vivo

Literature

It is intended to accelerate LNP discovery and optimization by replacing low-throughput workflows with multiplexed in vivo characterization. The platform also helps separate nanoparticles with distinct biological outcomes despite similar formulation series.

Source:

It is intended to accelerate LNP discovery and optimization by replacing low-throughput workflows with multiplexed in vivo characterization. The platform also helps separate nanoparticles with distinct biological outcomes despite similar formulation series.

Published Workflows

Multiplexed lipid nanoparticle barcoding reveals tissue-dynamic kinetic insights and enriched cellular tropism in hepatic zones.

2026

Objective: Accelerate discovery and optimization of lipid nanoparticles by using a multiplexed in vivo barcoding platform to characterize delivery kinetics, biological outcomes, and tissue tropism of LNP-mRNA formulations.

Why it works: The abstract presents multiplexing as a way to compare many LNP formulations in vivo within a single barcoded framework, enabling higher-resolution kinetic and tropism characterization than low-throughput workflows.

organ enrichment after deliveryfunctional protein activity after mRNA deliverytissue- and zone-specific tropismbarcode multiplexingin vivo LNP trackingsystematic kinetic studies

Stages

  1. 1.
    Multiplexed in vivo LNP tracking(broad_screen)

    This stage exists to accelerate LNP discovery and optimization by enabling multiplexed in vivo comparison rather than low-throughput one-by-one testing.

    Selection: Track multiple LNP formulations in vivo using a barcoded Cre recombinase mRNA platform in tdTomato reporter mice.

  2. 2.
    Kinetic characterization across organs(functional_characterization)

    This stage exists to connect delivery kinetics with functional protein activity and to resolve organ-specific behavior of SORT LNPs.

    Selection: Evaluate accumulation and degradation kinetics of mRNA encapsulated in SORT LNPs in liver, lung, and spleen and relate these to functional protein activity.

  3. 3.
    Tropism and zonation characterization(secondary_characterization)

    This stage exists to reveal tissue- and zone-specific delivery behaviors that may be missed in broader organ-level analyses.

    Selection: Use barcoding to identify and characterize nanoparticles with hepatic zonal bias and extrahepatic tropism.

Taxonomy & Function

Primary hierarchy

Technique Branch

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

Target processes

recombination

Implementation Constraints

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

The reported implementation requires barcoded Cre recombinase mRNA, LNP formulations, and tdTomato reporter mice for in vivo tracking. The abstract also implies downstream tissue-level analysis of liver, lung, and spleen.; requires tdTomato reporter mice; requires Cre recombinase mRNA barcoding strategy; requires in vivo LNP administration and tracking

The abstract does not show that the platform itself optimizes formulations automatically or replaces downstream mechanistic validation. It also does not establish detailed single-cell or clinical readouts from the provided evidence.; abstract does not specify barcode chemistry, throughput limits, or quantification pipeline details

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1associationsupports2026Source 1needs review

For mRNA encapsulated in SORT LNPs, functional protein activity is associated with rapid organ enrichment.

show that functional protein activity is associated with rapid organ enrichment
Claim 2capabilitysupports2026Source 1needs review

A barcoded Cre recombinase mRNA barcode platform enables multiplexed in vivo tracking of lipid nanoparticles in tdTomato reporter mice.

we report a broadly compatible barcoded Cre recombinase mRNA barcode platform that enables multiplexed LNP tracking in vivo in tdTomato reporter mice
Claim 3discoverysupports2026Source 1needs review

Barcoding was used to identify and characterize nanoparticles with hepatic zonal bias and previously overlooked extrahepatic tropism.

we use barcoding to identify and characterize nanoparticles with hepatic zonal bias and previously overlooked extrahepatic tropism
Claim 4workflow utilitysupports2026Source 1needs review

Barcode multiplexing can streamline systematic kinetic studies, distinguish nanoparticles with distinct biological outcomes, and differentiate subtle variations within similar formulation series.

barcode multiplexing can streamline systematic kinetic studies, distinguish nanoparticles with distinct biological outcomes, and differentiate subtle, yet important, variations within a series of similar formulations

Approval Evidence

1 source3 linked approval claimsfirst-pass slug barcoded-cre-recombinase-mrna-barcode-platform
we report a broadly compatible barcoded Cre recombinase mRNA barcode platform that enables multiplexed LNP tracking in vivo in tdTomato reporter mice

Source:

capabilitysupports

A barcoded Cre recombinase mRNA barcode platform enables multiplexed in vivo tracking of lipid nanoparticles in tdTomato reporter mice.

we report a broadly compatible barcoded Cre recombinase mRNA barcode platform that enables multiplexed LNP tracking in vivo in tdTomato reporter mice

Source:

discoverysupports

Barcoding was used to identify and characterize nanoparticles with hepatic zonal bias and previously overlooked extrahepatic tropism.

we use barcoding to identify and characterize nanoparticles with hepatic zonal bias and previously overlooked extrahepatic tropism

Source:

workflow utilitysupports

Barcode multiplexing can streamline systematic kinetic studies, distinguish nanoparticles with distinct biological outcomes, and differentiate subtle variations within similar formulation series.

barcode multiplexing can streamline systematic kinetic studies, distinguish nanoparticles with distinct biological outcomes, and differentiate subtle, yet important, variations within a series of similar formulations

Source:

Comparisons

Source-stated alternatives

The source contrasts this approach with low-throughput LNP discovery and optimization workflows. The web research scaffold also identifies related barcode-based screening approaches and SENT-seq as nearby alternatives, but the abstract does not directly compare performance against them.

Source:

The source contrasts this approach with low-throughput LNP discovery and optimization workflows. The web research scaffold also identifies related barcode-based screening approaches and SENT-seq as nearby alternatives, but the abstract does not directly compare performance against them.

Source-backed strengths

broadly compatible; supports multiplexing; can resolve subtle formulation-dependent differences

Source:

broadly compatible

Source:

supports multiplexing

Source:

can resolve subtle formulation-dependent differences

Compared with calcium imaging

barcoded Cre recombinase mRNA barcode platform and calcium imaging address a similar problem space because they share recombination.

Shared frame: same top-level item type; shared target processes: recombination

Relative tradeoffs: appears more independently replicated.

Compared with freely moving in vivo calcium imaging

barcoded Cre recombinase mRNA barcode platform and freely moving in vivo calcium imaging address a similar problem space because they share recombination.

Shared frame: same top-level item type; shared target processes: recombination

Compared with two-photon excitation microscopy

barcoded Cre recombinase mRNA barcode platform and two-photon excitation microscopy address a similar problem space because they share recombination.

Shared frame: same top-level item type; shared target processes: recombination

Strengths here: looks easier to implement in practice.

Ranked Citations

  1. 1.
    StructuralSource 1MED2026Claim 1Claim 2Claim 3

    Extracted from this source document.