
Research Square (Research Square), Год журнала: 2023, Номер unknown
Опубликована: Фев. 28, 2023
Abstract Background As a common tumor with high incidence, osteosarcoma possesses extremely poor prognosis and mortality. Improving the survival of patients is still great challenge due to precipice advancement in treatment. This study aims develop multifunctional nanoplatform based on synergistic effect NIR-II photothermal therapy (PTT) gene for efficient treatment osteosarcoma. Methods In this study, combination strategy developed Two-dimensional (2D) FePS 3 nanosheets are synthesized functionalized by poly-L-lysine-PEG-folic acid (PPF) fabricate (FePS@PPF) further loading microRNAs inhibitor, miR-19a inhibitor (anti-miR-19a). Results The conversion efficiency FePS@PPF up 47.1% under irradiation 1064 nm laser. vitro shows that anti-miR-19a can be efficiently internalized into cells through protection delivery nanao carrier, which induces up-regulation PTEN down-regulation p-AKT gene. After intravenous injection, specifically accumulates site osteosarcoma-bearing mice. vivo investigations reveal combined PTT-gene displays most significant ablation compared monotherapy. More importantly, good biodegradability promotes cleared from body avoiding potential toxicity long-term retention. Conclusion Our work not only develops PTT mediated anti-miR-19a/FePS@PPF but also provides insights design applications other nanotherapeutic platforms.
Язык: Английский