PUBLICATION
Non-invasive single cell aptasensing in live cells and animals
- Authors
- Osman, E.A., Rynes, T.P., Wang, Y.L., Mruk, K., McKeague, M.
- ID
- ZDB-PUB-240329-15
- Date
- 2024
- Source
- Chemical science 15: 477047784770-4778 (Journal)
- Registered Authors
- Mruk, Karen, Rynes, Thomas
- Keywords
- none
- MeSH Terms
- none
- PubMed
- 38550682 Full text @ Chem Sci
Citation
Osman, E.A., Rynes, T.P., Wang, Y.L., Mruk, K., McKeague, M. (2024) Non-invasive single cell aptasensing in live cells and animals. Chemical science. 15:477047784770-4778.
Abstract
We report a genetically encoded aptamer biosensor platform for non-invasive measurement of drug distribution in cells and animals. We combined the high specificity of aptamer molecular recognition with the easy-to-detect properties of fluorescent proteins. We generated six encoded aptasensors, showcasing the platform versatility. The biosensors display high sensitivity and specificity for detecting their specific drug target over related analogs. We show dose dependent response of biosensor performance reaching saturating drug uptake levels in individual live cells. We designed our platform for integration into animal genomes; thus, we incorporated aptamer biosensors into zebrafish, an important model vertebrate. The biosensors enabled non-invasive drug biodistribution imaging in whole animals across different timepoints. To our knowledge, this is the first example of an aptamer biosensor-expressing transgenic vertebrate that is carried through generations. As such, our encoded platform addresses the need for non-invasive whole animal biosensing ideal for pharmacokinetic-pharmacodynamic analyses that can be expanded to other organisms and to detect diverse molecules of interest.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping