Level D· Scientific groundwork from lab and animal studiesLaboratory StudyPubMed

GREM1 inhibits osteogenic differentiation, senescence and BMP transcription of adipose-derived stem cells.

Liu H., Han X., Yang H., Cao Y., Zhang C., Du J.

Laboratory Study, published in Connect Tissue Res (2020) — 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
Connect Tissue Res (2020)
Country
England
Reported sample size
—
Source database
PubMed
PMID
32151168
DOI
10.1080/03008207.2020.1736054
Citations
20

Abstract (original English)

Purpose : Adipose-derived stem cells (ADSCs) are ideal for cell-based therapies to support bone regeneration. It is vital to understand the critical genes and molecular mechanisms involved in the functional regulation of ADSCs for enhancing bone regeneration. In the present study, we investigated the Gremlin 1 (GREM1) effect on ADSCs osteogenic differentiation and senescence. Materials and methods : The in vitro ADSCs osteogenic differentiation potential was evaluated by determining alkaline phosphatase (ALP) activity, mineralization ability, and the expression of osteogenic markers. Cell senescence is determined by SA-β-gal staining, telomerase assay, and the expression of aging markers. Results : GREM1 overexpression in ADSCs reduced ALP activity and mineralization, inhibited the expression of osteogenic related genes OCN, OPN, DSPP, DMP1 , and BSP , and key transcription factors, RUNX2 and OSX . GREM1 knockdown in ADSCs enhanced ALP activity and mineralization, promoted the expression of OCN, OPN, DSPP, DMP1, BSP, RUNX2 , and OSX . GREM1 overexpression in ADSCs reduced the percent SA-β-Gal positive cells, P16 and P53 expressions, and increased telomerase activity. GREM1 knockdown in ADSCs increased the percentage of SA-β-Gal positive cells, P16 and P53 expressions, and reduced telomerase activity. Furthermore, GREM1 reduced the mRNA expression levels of BMP2, BMP6, and BMP7.

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
Cell DifferentiationCells, CulturedCore Binding Factor Alpha 1 SubunitOsteogenesisStem CellsTelomeraseTumor Suppressor Protein p53

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