Evidence map›Paper›PMID 23157326›Full record

ArticleJournal of the American Chemical Society2013

Multiplexed protease activity assay for low-volume clinical samples using droplet-based microfluidics and its application to endometriosis.

Chia-Hung Chen, Miles A Miller, Aniruddh Sarkar, Michael T Beste, Keith B Isaacson, Douglas A Lauffenburger, Linda G Griffith, Jongyoon Han

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.5field-weighted citation impact, top 5% of its field
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

37 citing papers in PubMed, 89 citations in OpenAlex.

  1. Exploring endometriosis through 3DMaterials today. Bio · 2026
    Review
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Strategies for modelling endometrial diseases.Nature reviews. Endocrinology · 2022
    Review
  11. Article
  12. Review
  13. Article
  14. Bioengineering models of female reproduction.Bio-design and manufacturing · 2020
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Droplet microfluidics for high-sensitivity and high-throughput detection and screening of disease biomarkers.Wiley interdisciplinary reviews. Nanomedicine and nanobiotechnology · 2018
    Review
  20. Functional profiling of circulating tumor cells with an integrated vortex capture and single-cell protease activity assay.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
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

8 authors at 3 institutions in 2 countries.

Chia-Hung ChenDepartment of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.
Miles A Miller
Aniruddh Sarkar
Michael T Beste
Keith B Isaacson
Douglas A Lauffenburger
Linda G Griffith
Jongyoon Han
Massachusetts Institute of Technology · USNational University of Singapore · SGNewton Wellesley Hospital · US

Funding

Systems Biology of Cell Decision ProcessesP50GM068762 · NIGMS · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI YAFFE, MICHAEL B · 2003 to 2012
$32.3M
Tumor Cell Networks CenterU54CA112967 · NCI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI LAUFFENBURGER, DOUGLAS A · 2004 to 2015
$26.2M
Perfused 3D Tissue Surrogates for Complex Cell-Cell Communication SystemsR01EB010246 · NIBIB · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI GRIFFITH, LINDA G · 2009 to 2013
$3.3M
NCI NIH HHS U54 CA112967NCI NIH HHS U54-CA112967NIBIB NIH HHS R01 EB010246NIGMS NIH HHS P50 GM068762NIGMS NIH HHS P50-GM68762
6 · The paper itself

Abstract

As principal degrading enzymes of the extracellular matrix, metalloproteinases (MPs) contribute to various pathologies and represent a family of promising drug targets and biomarker candidates. However, multiple proteases and endogenous inhibitors interact to govern MP activity, often leading to highly context-dependent protease function that unfortunately has impeded associated clinical utility. We present a method for rapidly assessing the activity of multiple specific proteases in small volumes (<20 μL) of complex biological fluids such as clinical samples that are available only in very limited amounts. It uses a droplet-based microfluidic platform that injects the sample into thousands of picoliter-scale droplets from a barcoded droplet library (DL) containing mixtures of unique, moderately selective FRET-based protease substrates and specific inhibitors and monitors hundreds of the reactions thus initiated simultaneously by tracking these droplets. Specific protease activities in the sample are then inferred from the reaction rates using a deconvolution technique, proteolytic activity matrix analysis (PrAMA). Using a nine-member DL with three inhibitors and four FRET substrates, we applied the method to the peritoneal fluid of subjects with and without the invasive disease endometriosis. The results showed clear and physiologically relevant differences with disease, in particular, decreased MMP-2 and ADAM-9 activities.

Indexed as

Enzyme AssaysMicrofluidic Analytical TechniquesEndometriosisFemaleFluorescence Resonance Energy TransferHumansMetalloproteasesParticle SizeProtease InhibitorsSubstrate SpecificitySurface PropertiesMetalloproteasesProtease Inhibitors

Identifiers

PMID23157326
PMCPMC3566300
OpenAlexW2070168562

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.