Li Kangan, Gordon Andrew C, Zheng Linfeng, Li Weiguo, Guo Yang, Sun Jing, Zhang Guixiang, Han Guohong, Larson Andrew C, Zhang Zhuoli
Department of Radiology, Shanghai First People's Hospital, Shanghai Jiaotong University, Shanghai 200080, P. R. China.
Departments of Radiology, Northwestern University, 737 N Michigan Ave, Suite 1600, Chicago, IL 60611, USA.
Nanomedicine (Lond). 2015;10(11):1761-74. doi: 10.2217/nnm.15.24.
To test the hypothesis that MRI can monitor intraportal vein (IPV) transcatheter delivery of clinically applicable heparin-protamine-ferumoxytol (HPF) nanocomplex-labeled natural killer (NK) cells to liver tumor.
MATERIALS & METHODS: Liver tumor rat models underwent catheterization for IPV infusion of HPF-labeled NK cells (NK-92MI cell line). MRI measurements within tumor and adjacent liver tissues were compared pre- and post-NK cell infusion. Histology studies were used to identify NK cells in the target tumors.
For first time, we demonstrated that MRI tracks HPF-labeled NK cells migration within liver following IPV delivery.
IPV transcatheter infusion permitted selective delivery of NK cells to liver tissues and MRI allowed tracking NK cell biodistributions within the tumors.
验证以下假设,即磁共振成像(MRI)能够监测经门静脉(IPV)导管输送临床上适用的肝素-鱼精蛋白-菲立磁(HPF)纳米复合物标记的自然杀伤(NK)细胞至肝肿瘤的情况。
肝肿瘤大鼠模型接受导管插入术,以便经门静脉输注HPF标记的NK细胞(NK-92MI细胞系)。在输注NK细胞前后,对肿瘤及相邻肝组织进行MRI测量并比较。组织学研究用于识别靶肿瘤中的NK细胞。
我们首次证明,MRI能够追踪经门静脉输送后HPF标记的NK细胞在肝脏内的迁移情况。
经门静脉导管输注可使NK细胞选择性地输送至肝组织,而MRI能够追踪NK细胞在肿瘤内的生物分布情况。