Adipose-derived stem cell-based anti-inflammatory paracrine factor regulation for the treatment of inflammatory bowel disease.

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)

Stem cell-based therapies offer promising avenues for treating inflammatory diseases owing to their immunomodulatory properties. However, challenges persist regarding their survival and efficacy in inflamed tissues. Our study introduces a novel approach by engineering adipose-derived stem cells (ADSCs) to enhance their viability in inflammatory environments and boost the secretion of paracrine factors for treating inflammatory bowel disease (IBD). An arginine-glycine-aspartate peptide-poly (ethylene glycol)-chlorin e6 conjugate (RPC) was synthesized and coupled with ADSCs, resulting in RPC-labeled ADSCs (ARPC). This conjugation strategy employed RGD-integrin interaction to shield stem cells and allowed visualization and tracking using chlorin e6. The engineered ARPC demonstrated enhanced viability and secretion of paracrine factors upon light irradiation, regulating the inflammatory microenvironment. RNA-sequencing analysis unveiled pathways favoring angiogenesis, DNA repair, and exosome secretion in ARPC(+) while downregulating inflammatory pathways. In in vivo models of acute and chronic IBD, ARPC(+) treatment led to reduced inflammation, preserved colon structure, and increased populations of regulatory T cells, highlighting its therapeutic potential. ARPC(+) selectively homed to inflammatory sites, demonstrating its targeted effect. Overall, ARPC(+) exhibits promise as an e

Evidence level

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

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