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载雷公藤甲素靶向制剂的制备及质量、靶向性、细胞毒性评价
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尹茉莉 ,罗文彬 ,徐婧哲 ,唐泽波 ,郭 妮 ,劳友幸 ,王会岩 (1.吉林医药学院吉林省抗体工程科技协同
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创新中心,吉林 吉林 132013;2.吉林医药学院基础医学院,吉林 吉林 132013;3.西安交通大学第二附属
医院生物诊疗中心,西安 710299)
中图分类号 R944;R965 文献标志码 A 文章编号 1001-0408(2025)12-1457-06
DOI 10.6039/j.issn.1001-0408.2025.12.07
摘 要 目的 制备雷公藤甲素(TP)纳米粒子靶向制剂,并评价其质量、靶向性和细胞毒性作用。方法 使用乳化挥发法,以聚乳
酸-羟基乙酸共聚物/聚乙二醇/叶酸(PLGA-PEG-FA)为载体,制备载TP靶向FA受体的聚合物纳米粒子(TP@PLGA-PEG-FA),观
察其形态及分布,测定其粒径、Zeta 电位、多分散性指数(PDI)、载药量、包封率,评价其稳定性、血液相容性、体外释药情况、
RAW264.7细胞摄取情况(以荧光染料Cy3.5定位)和体外细胞毒性。结果 TP@PLGA-PEG-FA呈球形,分布均匀,粒径为(122.60±
0.02)nm,Zeta 电位为(-17.6±0.6)mV,PDI 为 0.26±0.02;TP 的载药量和包封率分别为(7.78±0.05)%和(68.62±0.03)%;其在
4 ℃水中放置 14 d 和在 37 ℃、含有 10% 胎牛血清的 DMEM 培养基中放置 12 h 的粒径、PDI、Zeta 电位均无明显变化。100、200、
300、400 µg/mL TP@PLGA-PEG-FA的溶血率分别为0.77%、0.92%、1.34%、1.63%。TP@PLGA-PEG-FA在pH5.5的磷酸盐缓冲液
中72 h时的累积释放量为(84.83±0.29)%,较pH7.4、6.5磷酸盐缓冲液中72 h时的累积释放量[分别为(42.37±0.35)%、(63.83±
0.29)%]显著升高(P<0.05)。激活的RAW264.7细胞对Cy3.5@PLGA-PEG-FA的摄取明显多于其对Cy3.5@PLGA-PEG-FA+游离
FA和Cy3.5@PLGA-PEG的摄取;当TP质量浓度≥15.63 ng/mL时,TP@PLGA-PEG-FA组激活细胞的存活率显著低于同质量浓度
游离TP组(P<0.05)。结论 所制备的TP@PLGA-PEG-FA稳定性高、血液相容性好,对炎症细胞具有主动靶向性和细胞毒性。
关键词 雷公藤甲素;类风湿关节炎;细胞毒性;靶向制剂;纳米粒子
Preparation and evaluation of quality, targeting and cytotoxicity of triptolide-loaded targeting nanoparticles
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YIN Moli ,LUO Wenbin ,XU Jingzhe ,TANG Zebo ,GUO Ni ,LAO Youxing ,WANG Huiyan (1. Jilin
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Collaborative Innovation Center for Antibody Engineering, Jilin Medical University, Jilin Jilin 132013, China;
2. College of Basic Medicine, Jilin Medical University, Jilin Jilin 132013, China;3. National-Local Joint
Engineering Research Center of Biodiagnostics and Biotherapy, the Second Affiliated Hospital of Xi’an Jiaotong
University, Xi’an 710299, China)
ABSTRACT OBJECTIVE To prepare nanoparticle-based targeting preparation loaded with triptolide (TP), and evaluate its
quality, targeting ability and cytotoxic effects. METHODS Polymer nanoparticles carrying TP-targeted folic acid (FA) receptor
(TP@PLGA-PEG-FA) were fabricated using poly (lactic-co-glycolic acid)/polyethylene glycol/FA (PLGA-PEG-FA) as the carrier
by emulsion and volatilization technique. The morphology and distribution were observed, and their particle size, Zeta potential,
polydispersity index (PDI), drug loading capacity and encapsulation efficiency were measured. Their stability, blood compatibility,
in vitro drug release, uptake by RAW264.7 cells (localization with fluorescent dye Cy3.5), and in vitro cytotoxicity were
evaluated. RESULTS TP@PLGA-PEG-FA exhibited spherical shape and uniform distribution, with particle size of (122.60±0.02)
nm, Zeta potential of (-17.6±0.6)mV, and PDI of 0.26±0.02; drug loading capacity and encapsulation efficiency of TP were
measured to be (7.78±0.05)% and (68.62±0.03)%, respectively. The hemolysis rates of 100, 200, 300, 400 µg/mL TP@PLGA-
PEG-FA were 0.77%, 0.92%, 1.34% and 1.63%, respectively. There were no significant changes in particle size, PDI and Zeta
potential when TP@PLGA-PEG-FA were placed in 4 ℃ water for 14 days and in DMEM culture medium containing 10% fetal
bovine serum at 37 ℃ for 12 h. The cumulative release rate of
Δ 基金项目 吉 林 省 科 技 发 展 计 划 项 目(No. YDZJ20240203-
TP@PLGA-PEG-FA was (84.83±0.29)% in phosphate buffer
0CXJD,No. YDZJ202101ZYTS095);吉 林 省 中 医 药 科 技 项 目(No.
2024161);吉林省大学生创新创业训练计划项目(No.S202313706005, at pH5.5 for 72 h, which was significantly higher than the
No.S202413706028) cumulative release rates in phosphate buffer solutions at pH7.4
*第一作者 实验师,博士。研究方向:药物新剂型。E-mail:
and 6.5 for 72 h [(42.37±0.35)% and (63.83±0.29)% ,
80630963@qq.com
# 通信作者 教 授 ,博 士 。 研 究 方 向 :药 物 新 剂 型 。 E-mail: respectively] (P<0.05). Activated RAW264.7 cells took up
zswhy518@163.com significantly more Cy3.5@PLGA-PEG-FA than they took up
中国药房 2025年第36卷第12期 China Pharmacy 2025 Vol. 36 No. 12 · 1457 ·