ArticleChembiochem : a European journal of chemical biology2019
Comparing Agent-Based Delivery of DNA and PNA Forced Intercalation (FIT) Probes for Multicolor mRNA Imaging.
Article in Chembiochem : a European journal of chemical biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 17 citations in OpenAlex.
- Molecular structure and DNA binding mode of unsymmetric cyanine dyes RiboGreen and OliGreen.Nucleic acids research · 2026Article
- ASOBIOTICS 2024: an interdisciplinary symposium on antisense-based programmable RNA antibiotics.RNA (New York, N.Y.) · 2025Article
- Recent advances in living cell nucleic acid probes based on nanomaterials for early cancer diagnosis.Asian journal of pharmaceutical sciences · 2024Review
- Review
- Broad Applications of Thiazole Orange in Fluorescent Sensing of Biomolecules and Ions.Molecules (Basel, Switzerland) · 2021Review
- Monitoring Dicer-Mediated miRNA-21 Maturation and Ago2 Loading by a Dual-Colour FIT PNA Probe Set.Chembiochem : a European journal of chemical biology · 2020Article
- Nucleic-Acid Structures as Intracellular Probes for Live Cells.Advanced materials (Deerfield Beach, Fla.) · 2020Review
- Bioorthogonal mRNA labeling at the poly(A) tail for imaging localization and dynamics in live zebrafish embryos.Chemical science · 2020Article
- Comparing Agent-Based Delivery of DNA and PNA Forced Intercalation (FIT) Probes for Multicolor mRNA Imaging.Chembiochem : a European journal of chemical biology · 2019Article
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Fluorogenic oligonucleotide probes allow mRNA imaging in living cells. A key challenge is the cellular delivery of probes. Most delivery agents, such as cell-penetrating peptides (CPPs) and pore-forming proteins, require interactions with the membrane. Charges play an important role. To explore the influence of charge on fluorogenic properties and delivery efficiency, we compared peptide nucleic acid (PNA)- with DNA-based forced intercalation (FIT) probes. Perhaps counterintuitively, fluorescence signaling by charged DNA FIT probes proved tolerant to CPP conjugation, whereas CPP-FIT PNA conjugates were affected. Live-cell imaging was performed with a genetically engineered HEK293 cell line to allow the inducible expression of a specific mRNA target. Blob-like features and high background were recurring nuisances of the tested CPP and lipid conjugates. By contrast, delivery by streptolysin-O provided high enhancements of the fluorescence of the FIT probe upon target induction. Notably, DNA-based FIT probes were brighter and more responsive than PNA-based FIT probes. Optimized conditions enabled live-cell multicolor imaging of three different mRNA target sequences.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.