Adipose-derived stem cells induced dendritic cells undergo tolerance and inhibit Th1 polarization.

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)

Adipose tissue-derived stem cells (ADSC) have been shown to possess stem cell properties such as transdifferentiation, self-renewal and therapeutic potential. However, the property of ADSC to accommodate immune system is still unknown. In this study, ADSC were cocultured with allogenetic dendritic cells (DC), and then treated DC were mixed with allogenetic CD4+ T cells. The results demonstrated that ADSC could downregulate costimulatory molecules, including CD80, CD83, CD86, and cytokine secretion such as interleukin (IL)-12 and tumor necrosis factor (TNF)-α, while upregulate indoleamine-2,3-dioxygenase (IDO) of allogenetic DC. In addition, treated DC could inhibit CD4+ T cell activation and naïve T cells toward Th1 polarization. The results suggest that ADSC could negatively modulate immunity and induce immune tolerance, which provide a promising strategy in transplantation or autoimmune disease.

Evidence level

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

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