Evidence map›Paper›PMID 27240220›Full record

ArticleSmall (Weinheim an der Bergstrasse, Germany)2016

Cellular Assays with a Molecular Endpoint Measured by SAMDI Mass Spectrometry.

Eric J Berns, Maria D Cabezas, Milan Mrksich

Open access · greenAbstract read
In one paragraph

Article in Small (Weinheim an der Bergstrasse, Germany), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

9 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Article
  3. High-throughput antibody screening from complex matrices using intact protein electrospray mass spectrometry.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. 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

3 authors at 1 institution in 1 country.

Eric J BernsDepartment of Biomedical Engineering, Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.
Maria D CabezasDepartment of Biomedical Engineering, Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.
Milan MrksichDepartment of Biomedical Engineering, Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.
Northwestern University · US

Funding

Tumor Environment and Metastasis (TEAM) Research ProgramP30CA060553 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Daniela E Matei · 1993 to 2026
$153.9M
Project 3: Spherical Nucleic Acids as Immunotherapeutic Agents for Prostate CancerU54CA199091 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MIRKIN, CHAD A. · 2015 to 2019
$11.7M
NCI NIH HHS P30 CA060553NCI NIH HHS U54 CA199091
6 · The paper itself

Abstract

Cell-based, high-throughput screening (HTS) assays are increasingly important tools used in drug discovery, but frequently rely on readouts of gene expression or phenotypic changes and require development of specialized, labeled reporters. Here a cell-based, label-free assay compatible with HTS is introduced that can report quantitatively on enzyme activities by measuring mass changes of substrates with matrix-assisted laser desorption/ionization mass spectrometry. The assay uses self-assembled monolayers to culture cells on arrays presenting substrates, which serve as reporters for a desired enzyme activity. Each spot of cells is treated with a compound, cultured and lysed, enabling endogenous enzymes to act on the immobilized peptide substrate. It is demonstrated that the assay can measure protein tyrosine phosphatase (PTP) activity from as few as five cells and a screen is described that identifies a compound that reduces PTP activity in cell lysates. This approach offers a valuable addition to the methods available for cell-based screening.

Indexed as

EnzymesHigh-Throughput Screening AssaysMass SpectrometrySpectrometry, Mass, Matrix-Assisted Laser Desorption-IonizationSubstrate SpecificityEnzymesanalytical methodsbioassayshigh-content screeningself-assembled monolayers

Identifiers

PMID27240220
PMCPMC4981186
OpenAlexW4248278786

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.