Roxadustat pre-conditioning and cyclic uniaxial stretching improve tenogenic differentiation potential of human adipose derived mesenchymal stromal cells.

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

Abstract (original English)

Tendon injuries represent a significant challenge to treat owing to their limited intrinsic reparative capacity. The use of mesenchymal stem cells (MSC) offers promising alternative therapeutic option to augments tendon repair. It is hypothesised that the activation of hypoxia inducible factor-1 alpha (HIF-1α), could facilitate the tendon repair process by promoting the proliferation and tenogenic differentiation of MSCs. To demonstrate this, a study was conducted incorporating the use of Roxadustat, a specific hypoxia mimetic mediator and cyclic uniaxial stretching at a frequency of 1 Hz and 8 % strain on adipose derived-mesenchymal stromal cells (ADMSCs). Methods Cellular morphology, proliferation rate, tenogenic protein and gene expression levels from 8 different treatment groups were compared. These groups include untreated ADMSCs (Control), Roxadustat pre-conditioned ADMSCs (ROX), ADMSCs subjected CAY10585 treatment only (CAY), Roxadustat pre-conditioned ADMSCs with CAY10585 inhibition (ROX+CAY), ADMSCs subjected to uniaxial stretching only (S), Roxadustat pre-conditioned ADMSCs with uniaxial stretching (ROX+S), ADMSCs subjected CAY10585 with uniaxial stretching (CAY+S) and primary tenocytes (Tenocytes). Results ROX+S group exhibited the highest expression of HIF-1α and demonstrated a significant up-regulation of collagen I and III expressions, increasing by 4.9 and 5.6-fo

Evidence level

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

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