School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, 210028, Jiangsu, China.
J Nanobiotechnology. 2023 Feb 5;21(1):41. doi: 10.1186/s12951-023-01766-w.
Clinically, activated EGFR mutation associated chemo-drugs resistance has severely threaten NSCLC patients. Nanoparticle based small interfering RNA (siRNA) therapy representing another promising alternative by silencing specific gene while still suffered from charge associated toxicity, strong immunogenicity and poor targetability. Herein, we reported a novel EGFR-mutant NSCLC therapy relying on edible and cation-free kiwi-derived extracellular vesicles (KEVs), which showed sevenfold enhancement of safe dosage compared with widely used cationic liposomes and could be further loaded with Signal Transducer and Activator of Transcription 3 interfering RNA (siSTAT3). siSTAT3 loaded KEVs (STAT3/KEVs) could be easily endowed with EGFR targeting ability (STAT3/EKEVs) and fluorescence by surface modification with tailor-making aptamer through hydrophobic interaction. STAT3/EKEVs with a controlled size of 186 nm displayed excellent stability, high specificity and good cytotoxicity towards EGFR over-expressing and mutant PC9-GR4-AZD1 cells. Intriguingly, the systemic administration of STAT3/EKEVs significantly suppressed subcutaneous PC9-GR4-AZD1 tumor xenografts in nude mice by STAT3 mediated apoptosis. This safe and robust KEVs has emerged as the next generation of gene delivery platform for NSCLC therapy after multiple drug-resistance.
临床上,与激活的 EGFR 突变相关的化疗药物耐药性严重威胁着非小细胞肺癌(NSCLC)患者的生命。基于纳米颗粒的小干扰 RNA(siRNA)疗法代表了另一种有前途的选择,它可以通过沉默特定基因来治疗疾病,但仍存在电荷相关毒性、强烈的免疫原性和较差的靶向性等问题。在此,我们报道了一种新型的依赖于可食用且无阳离子的猕猴桃衍生细胞外囊泡(KEVs)的 EGFR 突变型 NSCLC 治疗方法,与广泛使用的阳离子脂质体相比,它的安全剂量提高了七倍,并且可以进一步装载信号转导和转录激活因子 3 干扰 RNA(siSTAT3)。通过疏水性相互作用用定制的适体进行表面修饰,可以很容易地将 siSTAT3 负载的 KEVs(STAT3/KEVs)赋予 EGFR 靶向能力(STAT3/EKEVs)和荧光。STAT3/EKEVs 的尺寸为 186nm,具有极好的稳定性、对高表达和突变的 PC9-GR4-AZD1 细胞的高特异性和良好的细胞毒性。有趣的是,STAT3/EKEVs 的系统给药通过 STAT3 介导的细胞凋亡显著抑制了裸鼠皮下 PC9-GR4-AZD1 肿瘤异种移植物。这种安全有效的 KEVs 已经成为克服多药耐药性后的下一代 NSCLC 治疗基因传递平台。
J Natl Cancer Inst. 2017-9-1
Mol Cancer Ther. 2018-6-11
Pharmaceuticals (Basel). 2025-7-4
Int J Nanomedicine. 2025-7-14
Int J Mol Sci. 2025-5-19
Theranostics. 2025-1-1
MedComm (2020). 2024-11-28
Int J Mol Sci. 2024-7-10
Heliyon. 2024-3-9
Int J Mol Sci. 2021-12-24
Acc Chem Res. 2022-1-4
Int J Mol Sci. 2021-5-20
J Control Release. 2021-7-10
Drugs. 2021-2
Med Oncol. 2021-2-14