Galectin-1 from conditioned medium of three-dimensional culture of adipose-derived stem cells accelerates migration and proliferation of human keratinocytes and fibroblasts.

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)

Keratinocytes and fibroblasts cells play important roles in the skin-wound healing process and are the cell types activated by trauma. Activated cells participate in epithelialization, granulation, scar tissue formation, wound remodeling, and angiogenesis via a series of cellular activities including migration and proliferation. Previous studies reported that the conditioned medium (CM) of adipose-derived stem cells (ADSCs) stimulated the migration and proliferation of cell types involved in the skin wound healing process; however, these studies only show ADSC-CM effects that were obtained using 2-dimensional (2D) culture. Recently, 3-dimensional (3D) culture has been considered as a more physiologically appropriate system than 2D culture for ADSC cultures; therefore, ADSC-CM was collected from 3D culture (ADSC-CM-3D) and compared with ADSC-CM from 2D culture (ADSC-CM-2D) to investigate the effects on the migration and proliferation of human keratinocytes (HaCaTs) and fibroblasts. The migrations of the HaCaT cells and fibroblasts were significantly higher with ADSC-CM-3D compared with the 2D culture; similarly, the proliferation of HaCaT cells was also highly stimulated by ADSC-CM-3D. Proteomic analyses of the ADSC-CM revealed that collagens and actins were highly expressed in the 3D-culture system. Chitinase 3-like 1 (CHI3L1), tissue inhibitor of metalloproteinases (TIMP), and

Evidence level

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

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