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TMZ@ZIF-8纳米粒的制备、表征及体内外抗肿瘤研究
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          刘 婷    1, 2* ,王 怡 ,李冰辉 ,何 硕 ,夏 江 ,朱 婷 (1.哈尔滨商业大学药学院,哈尔滨 150076;2.哈尔
          滨医科大学药学院,黑龙江 大庆 163319;3.哈尔滨商业大学英才学院,哈尔滨 150028;4.哈尔滨商业大学药
          学院药物工程技术研究中心,哈尔滨 150076)
          中图分类号  TQ460.4;R943      文献标志码  A      文章编号  1001-0408(2024)09-1100-08
          DOI  10.6039/j.issn.1001-0408.2024.09.13

          摘   要  目的  制备沸石咪唑骨架(ZIF)-8纳米粒(NPs)负载替莫唑胺(TMZ)(简称TMZ@ZIF-8 NPs)药物递送系统,以增加药物
          在病灶的富集和抗脑胶质瘤效果。方法  采用室温溶液反应法制备ZIF-8 NPs后,再采用浸渍法制备TMZ@ZIF-8 NPs药物递送系统。
          进行透射电镜、激光粒度及傅里叶变换红外光谱等表征和溶出实验,并进行体外及体内抗肿瘤活性实验。结果  TMZ@ZIF-8 NPs
          制备成功,粒径为(126.23±7.92)nm,载药率为(28.79±1.26)%,72 h累积溶出速率为(72.36±3.62)%。体外抗肿瘤活性实验结果
          显示,ZIF-8 NPs的相对细胞存活率一直保持在90%以上;与游离的TMZ相比,TMZ@ZIF-8 NPs对C6细胞的生长、增殖表现出更
          优的抑制作用、更高的被摄取能力和更好的促凋亡效果。体内抗肿瘤活性实验结果显示,ZIF-8 NPs在大鼠脑部不富集,TMZ在脑
          部富集效果并不显著,而TMZ@ZIF-8 NPs在脑部富集效果显著。结论  ZIF-8 NPs可有效负载TMZ,制备成功的TMZ@ZIF-8可
          提高TMZ摄取能力及抗脑胶质瘤效果。
          关键词  替莫唑胺;沸石咪唑骨架;pH敏感;脑胶质瘤;药物递送系统;纳米粒

          TMZ@ZIF-8 nanoparticles:preparation, characterization, and in vivo and in vitro anti-tumor studies
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          LIU Ting ,WANG Yi ,LI Binghui ,HE Shuo ,XIA Jiang ,ZHU Ting (1.  School  of  Pharmacy,  Harbin
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          University  of  Commerce,  Harbin   150076,  China;2.  College  of  Pharmacy,  Harbin  Medical  University,
          Heilongjiang  Daqing  163319,  China;3.  Honors’  School,  Harbin  University  of  Commerce,  Harbin  150028,
          China;4.  Center  of  Pharmaceutical  Engineering  and  Technology,  College  of  Pharmacy,  Harbin  University  of
          Commerce, Harbin 150076, China)
          ABSTRACT    OBJECTIVE  To  prepare  zeolite  imidazole  framework (ZIF)-8  nanoparticles (NPs)  loaded  with  temozolomide
         (TMZ) (abbreviated  as  TMZ@ZIF-8  NPs)  drug  delivery  system,  thus  increasing  drug  enrichment  and  anti-glioma  effects  in
          lesions. METHODS After preparing ZIF-8 NPs using the room temperature solution reaction method, the impregnation method was
          used  to  prepare  TMZ@ZIF-8  NPs  drug  delivery  system.  Characterization  was  carried  out  using  transmission  electron  microscopy,
          laser particle size, and Fourier transform infrared spectroscopy, and dissolution and anti-tumor activity experiments in vitro and in
          vivo  were  conducted.  RESULTS  TMZ@ZIF-8  NPs  were  successfully  prepared  with  the  particle  size  of (126.23±7.92)  nm,  drug
          loading  amount  of (28.79±1.26)%,  and  72  h  cumulative  dissolution  rate  of (72.36±3.62)%.  The  results  of  in  vitro  anti-tumor
          activity  experiments  showed  that  the  relative  cell  survival  rate  of  ZIF-8  NPs  remained  above  90%;  the  prepared TMZ@ZIF-8  NPs
          delivery  system  exhibited  superior  inhibition,  higher  uptake  capacity,  and  better  promoting  apoptosis  effects  on  the  growth  and
          proliferation  of  C6  cells  as  compared  with  the  free TMZ. The  results  of  in  vivo  anti-tumor  activity  experiments  showed  that  ZIF-8
          NPs were not enriched in the brain of rats, and the enrichment effect of TMZ in the brain was not significant, while TMZ@ZIF-8
          NPs  had  a  significant  enrichment  effect  in  the  brain.  CONCLUSIONS  ZIF-8  NPs  can  effectively  load  TMZ,  and  successfully
          prepared TMZ@ZIF-8 NPs can improve TMZ uptake ability and anti-glioma effect.
          KEYWORDS     temozolomide; zeolite imidazole framework; pH-sensitive; glioma; drug delivery system; nanoparticle



              Δ 基金项目 黑 龙 江 省 中 医 药 管 理 局 中 医 药 科 研 课 题(No.        脑胶质瘤又称胶质细胞瘤、胶质瘤,是发生于神经
          ZHY2023-211,No.ZHY2023-210);2023 年度哈尔滨商业大学“青年科      外胚层的肿瘤,故亦称神经外胚层肿瘤或神经上皮肿
          研创新人才”培育计划(No.2023-KYYWF-1028);哈尔滨商业大学博             瘤。脑胶质瘤是颅内最难治愈的恶性肿瘤之一,发病率
          士后科研启动项目(No.BS0087);哈尔滨商业大学博士科研支持计划                 占颅内肿瘤的 44.69%,其多呈浸润性生长,手术不易全
         (No.22BQ46,No.22BQ57)                                切,治疗敏感性极差,5 年生存率不足 5% 。替莫唑胺
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             *第一作者 讲师,博士。研究方向:中药新剂型和新技术。
                                                             (temozolomide,TMZ)是咪唑并四嗪类衍生物,在体内
          E-mail:18445136000@163.com
              # 通信作者 助理研究员,博士。研究方向:中药新剂型和新技术。                 经快速非酶催化转变为活性化合物 5-(3-甲基三氮
          E-mail:103289@hrbcu.edu.cn                          烯-1-)咪唑-4-酰胺[5-(3-methyltriazene-1-)imidazole-4-


          · 1100 ·    China Pharmacy  2024 Vol. 35  No. 9                              中国药房  2024年第35卷第9期
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