Evidence map›Paper›PMID 25494326›Full record

ArticleACS nano2014

Second harmonic super-resolution microscopy for quantification of mRNA at single copy sensitivity.

Jing Liu, Il-Hoon Cho, Yi Cui, Joseph Irudayaraj

Abstract read
In one paragraph

Article in ACS nano, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed.

  1. Review
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  4. Review
  5. Article
  6. Super-resolution re-scan second harmonic generation microscopy.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
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  14. Superresolved multiphoton microscopy with spatial frequency-modulated imaging.Proceedings of the National Academy of Sciences of the United States of America · 2016
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Jing LiuDepartment of Agricultural and Biological Engineering, Bindley Bioscience Center, Birck Nanotechnology Center, Purdue University , West Lafayette, Indiana 47907, United States.
Il-Hoon Cho
Yi Cui
Joseph Irudayaraj

Funding

Transgenic Mouse Core Facility Shared Resource (TMCF-SR)P30CA023168 · NCI · PURDUE UNIVERSITY WEST LAFAYETTE · PI Andrea L Kasinski · 1985 to 2026
$43.4M
NCI NIH HHS P30 CA023168
6 · The paper itself

Abstract

Cell-specific information on the quantity and localization of key mRNAs at single copy sensitivity in single cells is critical for evaluating basic cellular process, disease risk, and efficacy of therapy. Quantification of overexpressed mRNAs beyond the diffraction limit is constrained by the optical property of the probes and microscopy techniques. In this report, nanosized barium titanium oxide (BaTiO3, BTO) crystals were utilized as probes for mRNA quantification by a second harmonic super-resolution microscopy (SHaSM). The SHaSM was able to detect a single copy of the human epidermal growth factor receptor 2 (Her2) mRNA at a resolution of 55.6 nm with the ability to resolve multiple mRNA copies in a diffraction-limited spot. Her2 mRNA per cell was counted in SK-BR-3, MCF-7, and HeLa cell lines as 595±79.1, 38.9±8.26, and 1.5±2.8, respectively. Our single-cell quantification results were validated with the fluorescence in situ hybridization studies and quantitative PCR, showing better specificity and selectivity over current single-molecule approaches for transcript detection. The SHaSM is expected to have an upper limit of resolving ∼10(4) transcripts in a single cell with the ability to monitor intracellular transcriptional dynamics at video rate. The developed approach has strong potential in clinical research and in the early diagnosis of life-threatening diseases such as cancer.

Indexed as

MicroscopyBarium CompoundsBase SequenceCell Line, TumorDimerizationHumansIntracellular SpaceMolecular ProbesNanoparticlesRNA, MessengerTitaniumBarium Compoundsbarium titanate(IV)Molecular ProbesRNA, MessengerTitaniumBaTiO3 nanocrystalsdiagnosticsmRNA quantificationsecond harmonic generationsingle-copy detectionsuper-resolution microscopy

Identifiers

PMID25494326
PMCPMC4334232

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.