Level D· Scientific groundwork from lab and animal studiesLaboratory StudyPubMed

Transforming growth factor beta (TGF-beta) inhibits the differentiation of human adipocyte precursor cells in primary culture.

Petruschke T., Röhrig K., Hauner H.

Laboratory Study, published in Int J Obes Relat Metab Disord (1994) — 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
Read the A–D evidence level guide

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
Int J Obes Relat Metab Disord (1994)
Country
England
Reported sample size
—
Source database
PubMed
PMID
7951472

Abstract (original English)

In order to improve our understanding of the control of adipose tissue development in man by adipogenic and antiadipogenic factors we studied the effect of transforming growth factor beta (TGF beta) on the differentiation of human adipocyte precursor cells cultured in a serum-free medium. Addition of TGF beta at concentrations ranging from 5 to 100 pmol/l for 24 h at the beginning of the differentiation process resulted in a dose-dependent reduced expression of glycero-3-phosphate dehydrogenase (GPDH) activity. Continuous exposure of cells to TGF beta completely blocked differentiation even at a concentration of 5 pmol/l. Under these conditions cells were not able to accumulate lipid droplets. This inhibitory effect of TGF beta was not mediated by stimulation of cell proliferation. Exposure of newly developed fat cells to TGF beta was also associated with a significant suppression of GPDH activity. A 10-day incubation of cells with TGF beta reduced GPDH activity by more than 80% compared to controls. Despite this suppressive effect cells retained the typical fat cell-like morphology. In conclusion, these data clearly suggest that TGF beta exerts an inhibitory action on human adipose tissue development and reduces the activity of a lipogenic key enzyme in newly formed fat 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
AdipocytesAdolescentAdultBreastCell DifferentiationCell DivisionCells, CulturedCulture MediaFemaleGlycerolphosphate Dehydrogenase

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