Evidence map›Paper›PMID 19475505›Full record

ArticleCellular and molecular neurobiology2009

Detection of calcium transients in embryonic stem cells and their differentiated progeny.

Jason S Meyer, Gregory Tullis, Christopher Pierret, Kathleen M Spears, Jason A Morrison, Mark D Kirk

Abstract read
In one paragraph

Article in Cellular and molecular neurobiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.4field-weighted citation impact, top 36% 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

4 citing papers in PubMed, 8 citations in OpenAlex.

  1. Article
  2. Aquorin Bioluminescence-Based CaPlants (Basel, Switzerland) · 2025
    Article
  3. Article
  4. 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

6 authors at 1 institution in 1 country.

Jason S MeyerDivision of Biological Sciences, University of Missouri, Columbia, MO 65211, USA. jmeyer@waisman.wisc.edu
Gregory Tullis
Christopher Pierret
Kathleen M Spears
Jason A Morrison
Mark D Kirk
University of Missouri · US

Funding

Gene Therapy for Juvenile Ceroid-LipofuscinosisR01NS044494 · NINDS · UNIVERSITY OF MISSOURI-COLUMBIA · PI TULLIS, GREGORY E · 2002 to 2006
$1.3M
Stem Cell Therapies For Batten DiseaseR01NS045813 · NINDS · UNIVERSITY OF MISSOURI-COLUMBIA · PI KIRK, MARK D · 2004 to 2007
$1.0M
NINDS NIH HHS NS045813NINDS NIH HHS NS44494NINDS NIH HHS R01 NS044494NINDS NIH HHS R01 NS045813
6 · The paper itself

Abstract

A central issue in stem cell biology is the determination of function and activity of differentiated stem cells, features that define the true phenotype of mature cell types. Commonly, physiological mechanisms are used to determine the functionality of mature cell types, including those of the nervous system. Calcium imaging provides an indirect method of determining the physiological activities of a mature cell. Camgaroos are variants of yellow fluorescent protein that act as intracellular calcium sensors in transfected cells. We expressed one version of the camgaroos, Camgaroo-2, in mouse embryonic stem (ES) cells under the control of the CAG promoter system. Under the control of this promoter, Camgaroo-2 fluorescence was ubiquitously expressed in all cell types derived from the ES cells that were tested. In response to pharmacological stimulation, the fluorescence levels in transfected cells correlated with cellular depolarization and hyperpolarization. These changes were observed in both undifferentiated ES cells as well as ES cells that had been neurally induced, including putative neurons that were differentiated from transfected ES cells. The results presented here indicate that Camgaroo-2 may be used like traditional fluorescent proteins to track cells as well as to study the functionality of stem cells and their progeny.

Indexed as

Calcium SignalingCell DifferentiationAnimalsBiomarkersBrainCell LineColony Count, MicrobialEmbryonic Stem CellsExtracellular SpaceHumansIonomycinMiceNeuronsPotassiumTissue Culture TechniquesTransfectionBiomarkersIonomycinPotassium

Identifiers

PMID19475505
PMCPMC3384558
OpenAlexW2076587664

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.