Level D· Scientific groundwork from lab and animal studiesLaboratory StudyPubMed

Simultaneous detection of ERK-, p38-, and JNK-MAPK phosphorylation in human adipose-derived stem cells using the Cytometric Bead Array technology.

Schubert R., Geiger H., Zielen S., Baer PC.

Laboratory Study, published in J Immunol Methods (2009) — summary generated from the PubMed abstract.

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Level D· Scientific groundwork from lab and animal studiesEvidence level of this study

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

  • Level A · Stronger Clinical Evidence
  • Level B · Emerging clinical evidence with positive signals
  • Level C · Early human research exploring benefits
  • Level D · Scientific groundwork from lab and animal studies
  • Emerging · Emerging topic under active research
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This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.

Study type
Laboratory Study
Journal
J Immunol Methods (2009)
Country
Netherlands
Reported sample size
—
Source database
PubMed
PMID
19733175
DOI
10.1016/j.jim.2009.08.015
Citations
16

Abstract (original English)

Despite expanded research in stem cell biology, little is known about the mechanisms underlying migration, growth, and differentiation of adipose-derived adult mesenchymal stem cells (ASC). The simultaneous measurement of intracellular pathways opens new avenues to gain further insights in these processes. We used the Cytometric Bead Array (CBA) Flex Set technology to simultaneously analyze protein phosphorylation after stimulation of ASC and compared the results with data generated by corresponding Western blots. Signal transduction of ASC was stimulated by epidermal growth factor (EGF) and analyzed by determining phosphorylation of mitogen-activated protein kinases (MAPKs) ERK, p38, and JNK by Western blotting and CBA. After incubation with EGF, all MAPKs were significantly but differentially phosphorylated depending on time and dose. Furthermore, the ERK-response was abolished by EGF-R antagonist AG 1478 and kinase inhibitor PD98059, whereas p38 and JNK were only inhibited by AG1478. The stimulation and inhibition profiles between the two assays were highly comparable and the data were significantly correlated. In the present study we demonstrated that the CBA technology offers a reliable and convenient method for multiplexing of phospho-proteins in the evaluation of signal transduction pathways of adipose-derived mesenchymal stem cells.

What this study does not prove

  • • This study does not prove SVF is an approved treatment or a replacement for standard care.
  • • This is preclinical work; animal or laboratory results cannot be applied to humans.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

How we grade evidence
Adipose TissueAdultEnzyme InhibitorsEpidermal Growth FactorErbB ReceptorsExtracellular Signal-Regulated MAP KinasesFemaleFlavonoidsFlow CytometryHumans

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