Journal
NANOMEDICINE
Volume 11, Issue 10, Pages 1253-1266Publisher
FUTURE MEDICINE LTD
DOI: 10.2217/nnm-2016-0001
Keywords
BmK CT; cancer; cholorotoxin; dendrimer; glioma; imaging; I-131; MMP-2; radiotherapy; SPECT
Funding
- Shanghai General Hospital, School of Medicine, Shanghai Jiaotong University
- College of Materials Science and Engineering, Donghua University
- National Natural Science Foundation of China [21273032, 81171368, 81301245, 81401440]
- PhD Programs Foundation of Ministry of Education of China [20130075110004]
- Funds for the International Cooperation and Exchange of National Natural Science Foundation of China [81381340177]
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Aim: The poly(amidoamine) dendrimers modified with Buthus martensii Karsch chlorotoxin (BmK CT) were developed as a I-131 delivery system for glioma-targeted imaging and therapy. Materials & methods: Dendrimers before and after labeling I-131 were synthetized and their physicochemical properties were tested. The targeting and therapeutic efficacy of I-131-G5.NHAc-HPAO-(PEG-BmK CT)-(mPEG) dendrimer against glioma was evaluated in vitro and in vivo. Results: All the dendrimers were stable under different conditions. BmK CT modification increased the cellular uptake of dendrimers in C6 glioma cells, but not in the normal RLE-6TN cells. I-131-G5.NHAc-HPAO-(PEG-BmK CT)-(mPEG) dendrimer was radiochemically pure and could be applied in glioma-targeting single-photon emission CT (SPECT) imaging and radiotherapy. Conclusion: I-131-G5.NHAc-HPAO-(PEG-BmK CT)-(mPEG) complex is a promising multifunctional nanoplatform for glioma-specific nuclear imaging and radiotherapy.
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