Evidence map›Paper›PMID 34822599›Full record

ArticleToxins2021

The CHO Cell Clustering Response to Pertussis Toxin: History of Its Discovery and Recent Developments in Its Use.

Mary C Gray, Richard L Guerrant, Erik L Hewlett

Abstract read
In one paragraph

Article in Toxins, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Safety assessments of recombinant DTaP vaccines developed in South Korea.Clinical and experimental vaccine research · 2024
    Article
  5. Article
  6. Domperidone InhibitsToxins · 2023
    Article
  7. Review
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.

Mary C GrayDivision of Infectious Diseases and International Health, School of Medicine, University of Virginia, Charlottesville, VA 22904, USA.ORCID 0000-0003-4441-5905
Richard L GuerrantDivision of Infectious Diseases and International Health, School of Medicine, University of Virginia, Charlottesville, VA 22904, USA.
Erik L HewlettDivision of Infectious Diseases and International Health, School of Medicine, University of Virginia, Charlottesville, VA 22904, USA.

Funding

NIH HHS AI18000NIH HHS AI31118
6 · The paper itself

Abstract

Chinese hamster ovary (CHO) cells respond to pertussis toxin (PT) with a novel clustering pattern, which is dependent on biologically active PT. Since its description in 1983, this cellular response has been refined and used extensively for detection and quantification of PT activity, as well as anti-PT antibodies. There are limitations, however, in the use of this phenomenon as originally described. They are: (1) a subjective, observer-dependent scoring system; (2) the requirement for 16-24 h incubation in order for the response to be clearly detectable; and (3) apparent interference from non-toxin materials. To overcome these limitations, a number of alternative in vitro assays for PT, using CHO cells or other cell types, have been developed and are described elsewhere in this publication. In addressing the challenges associated with the CHO cell assay, we discovered that changes in the electrical impedance-based "normalized cell index" of PT-treated CHO cells obtained with the ACEA xCELLigence instrument enable objective detection/quantification of the PT-induced effect in as little as 3-4 h. To the best of our knowledge, the molecular basis for this intriguing response remains unknown. We present here electron microscopic (EM) images of control and PT-treated cells, which suggest some potential molecular mechanisms.

Indexed as

AnimalsCell AggregationCHO CellsCricetinaeCricetulusElectric ImpedanceMicroscopy, ElectronPertussis ToxinPertussis ToxinCHO cellscluster responseimpedancepertussis toxin

Identifiers

PMID34822599
PMCPMC8619707

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.