ArticleJournal of nucleic acids2012
Imaging mRNA Expression in Live Cells via PNA·DNA Strand Displacement-Activated Probes.
Article in Journal of nucleic acids, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
10 citing papers in PubMed, 15 citations in OpenAlex.
- Article
- Cationic Calix[4]arene Vectors to Efficiently Deliver AntimiRNA Peptide Nucleic Acids (PNAs) and miRNA Mimics.Pharmaceutics · 2023Article
- Integration of chemically modified nucleotides with DNA strand displacement reactions for applications in living systems.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology · 2022Review
- Multifunctional Delivery Systems for Peptide Nucleic Acids.Pharmaceuticals (Basel, Switzerland) · 2020Review
- Fluorogenic PNA probes.Beilstein journal of organic chemistry · 2018Review
- Nanotechnology for delivery of peptide nucleic acids (PNAs).Journal of controlled release : official journal of the Controlled Release Society · 2016Review
- Split Spinach Aptamer for Highly Selective Recognition of DNA and RNA at Ambient Temperatures.Chembiochem : a European journal of chemical biology · 2016Article
- Antisense peptide nucleic acid-functionalized cationic nanocomplex for in vivo mRNA detection.Interface focus · 2013Article
- Imaging mRNA expression levels in living cells with PNA·DNA binary FRET probes delivered by cationic shell-crosslinked nanoparticles.Organic & biomolecular chemistry · 2013Article
- Recent advances in chemical modification of Peptide nucleic acids.Journal of nucleic acids · 2012Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Probes for monitoring mRNA expression in vivo are of great interest for the study of biological and biomedical problems, but progress has been hampered by poor signal to noise and effective means for delivering the probes into live cells. Herein we report a PNA·DNA strand displacement-activated fluorescent probe that can image the expression of iNOS (inducible nitric oxide synthase) mRNA, a marker of inflammation. The probe consists of a fluorescein labeled antisense PNA annealed to a shorter DABCYL(plus)-labeled DNA which quenches the fluorescence, but when the quencher strand is displaced by the target mRNA the fluorescence is restored. DNA was used for the quencher strand to facilitate electrostatic binding of the otherwise netural PNA strand to a cationic shell crosslinked knedel-like (cSCK) nanoparticle which can deliver the PNA·DNA duplex probe into cells with less toxicity and greater efficiency than other transfection agents. RAW 264.7 mouse macrophage cells transfected with the iNOS PNA·DNA probe via the cSCK showed a 16 to 54-fold increase in average fluorescence per cell upon iNOS stimulation. The increase was 4 to 7-fold higher than that for a non-complementary probe, thereby validating the ability of a PNA·DNA strand displacement-activated probe to image mRNA expression in vivo.
Identifiers
What OpenQuestion holds
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.