Engineered Young Brown Adipose Tissue-Derived Exosomes Alleviate Radiation-Induced Lung Injury by Promoting G Protein-Coupled Receptor 183 Ubiquitination.

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)

Acute radiation-induced lung injury is a serious and potentially life-threatening complication of radiotherapy for thoracic malignancies or accidental radiation exposure, characterized by high incidence, limited treatment options, and substantial mortality. To address the lack of effective therapies for preventing and treating radiation-induced lung injury, we developed an engineered nanoplatform, BAT-exo@Au, generated by functionalizing exosomes derived from young brown adipose tissue (BAT) with 1,2-distearoyl- sn -glycero-3-phosphoethanolamine-polyethylene glycol-thiol (DSPE-PEG-SH) and gold nanoparticles via chloroauric acid (HAuCl 4 ) incubation. Our results show that BAT-exo@Au was efficiently internalized by irradiated lung tissue and exerted radioprotective effects by suppressing reactive oxygen species production and attenuating radiation-induced inflammatory responses. In addition, BAT-exo@Au mitigated radiation-induced epithelial-mesenchymal transition while enhancing tumor radiosensitivity, suggesting a dual therapeutic advantage. Mechanistically, BAT-exo@Au reduced apoptosis and preserved mitochondrial membrane potential after radiation in vitro. Transcriptomic analysis identified G protein-coupled receptor 183 ( Gpr183 ) as a potential downstream target, showing upregulation after radiation but downregulation following BAT-exo@Au treatment. Further in vitro experim

Evidence level

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

Browse all related research

Filter the research library by this study's title keywords, author, or publication year.