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开发使用可生物降解的注射聚合物用于癌症免疫治疗的免疫细胞输送系统
Yuta Yoshizaki1, Kenta Horii2, Nobuo Murase3
1Organization for Research and Development of Innovative Science and Technology (ORDIST), Kansai University, 3-3-35 Yamate, Suita, Osaka 564-8680, Japan.
International journal of pharmaceutics
|January 20, 2024
概括
可注射水凝增强树突细胞 (DC) 输送用于癌症免疫治疗. 这项研究表明,一种新型的聚合物凝有效地提供带有抗原的直流体,改善了小鼠淋巴瘤模型中的治疗结果.
科学领域:
- 生物材料科学 生物材料科学
- 免疫学 免疫学 免疫学
- 癌症治疗 癌症治疗
背景情况:
- 可注射的水凝对增强免疫细胞输送和治疗疗效有希望.
- 树突细胞 (DCs) 对于启动免疫反应至关重要,并用于癌症免疫治疗疫苗.
- 现有的细胞输送方法在维持细胞活力和治疗功能方面面临挑战.
研究的目的:
- 评估一种新型的耐温度,可生物降解的注射聚合物 (IP) 水凝,三-PCG,用于树突细胞 (DC) 输送.
- 评估tri-PCG水凝对装载抗原 (卵泡蛋白) 和辅助剂 (CpG-DNA) 的DC进行封装的能力.
- 在小鼠癌症模型中研究这种DC装载水凝系统的治疗效果.
主要方法:
- 一种反应温度的可注射聚合物 (tri-PCG) 水凝的配方.
- 在三PCG水凝中封装载有卵蛋白 (OVA) 和CpG-DNA的活直流体.
- 在封装后DC成熟和抗原呈现的体外评估.
- 在活体中将DC装载的水凝注入小鼠模型 (EG7-OVA淋巴瘤) 的皮下注射.
- 评估细胞保留,DC释放和抗瘤功效.
主要成果:
- 三PCG水凝显示了即时的溶液到凝的过渡,生物降解性和生物相容性.
- 封装的DCs成功地内化了OVA和CpG-DNA,成熟,并呈现了抗原.
- 皮下注射tri-PCG水凝延长了注射部位的细胞积累.
- 水凝促进了随着时间的推移随着降解而释放成熟的直流电流.
- 三PCG IP配方显著改善了对EG7-OVA瘤的治疗疗效.
结论:
- 基于Tri-PCG的可注射水凝是一种可行的和有效的平台,用于输送树突细胞.
- 这种水凝系统增强了DC活力,成熟和抗原呈现,改善了癌症免疫治疗.
- 从降解水凝中持续释放的DC有助于延长治疗效果和更好的抗瘤结果.
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