ArticleAngewandte Chemie (International ed. in English)2025
Fluorescent Peptide Tracers for Simultaneous Oxytocin Receptor Activation and Visualization.
Article in Angewandte Chemie (International ed. in English), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Development and Biological Characterization of Fluorescent Dynorphins for the Visualization of Kappa Opioid Receptors.Journal of medicinal chemistry · 2026Article
- Photocaged Oxytocin and Vasopressin Probes to Decipher Neuropeptide Signalling With High Spatiotemporal Resolution.Angewandte Chemie (International ed. in English) · 2026Article
- Fluorescent Peptide Tracers for Simultaneous Oxytocin Receptor Activation and Visualization.Angewandte Chemie (International ed. in English) · 2025Article
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Authors and funding
12 authors.
Funding
Abstract
The oxytocin receptor (OTR) regulates critical physiological functions and has been implicated in a range of diseases, including psychiatric and neurodevelopmental disorders such as autism spectrum disorder. However, a lack of reliable molecular tools hampers the progress in understanding OTR's mechanistic roles in (patho)physiological processes. In this work, we addressed this gap and developed potent, selective, and bright fluorescent peptide tracers that enable precise spatial and functional investigations of OTR actions. Our tracers showed efficient OTR labeling, activation, and internalization in cellular bioassays in both live and fixed overexpression and primary cell systems, including those subjected to immunocytochemical protocols, highlighting their versatility as reliable new imaging tools. Additionally, they facilitated single-molecule tracking of OTR with live-cell super-resolution microscopy and were able to separate OTR-positive cells from mixed oxytocin and vasopressin receptor-containing cell populations via fluorescence-activated cell sorting, underscoring their wider scope for live-cell applications. In summary, we developed versatile fluorescent tracers based on the endogenous ligand oxytocin for both live-cell and post-hoc imaging that have additional functional capabilities beyond traditional antibody labeling, offering new avenues to explore OTR's role in health and disease.
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Registered trials
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