Lyer S, Tietze R, Jurgons R, Struffert T, Engelhorn T, Schreiber E, Dörfler A, Alexiou C (2010)
Publication Type: Journal article
Publication year: 2010
Book Volume: 30
Pages Range: 1553-1557
Journal Issue: 5
Magnetic drug targeting (MDT) is a new locoregional chemotherapy method that increases the drug dose in the tumour region, while simultaneously reducing the overall dose through the application of chemotherapeuticbound superparamagnetic nanoparticles, which are focused by an external magnetic field to the desired body compartment. An important factor in this kind of therapy is the vascularisation of the targeted tumour. In this pilot study, the visualisation of the tumour-vascularisation before and after MDT was investigated. Materials and Methods: In a rabbit VX-2 tumour model, mitoxantrone bound to Fe3O4-nanoparticles was applied through the femoral artery close to the tumour. The visualisation of vascularisation and tumour size before and after MDT was performed using a biplane angiographic system (Siemens Axiom Artis dBA) to obtain conventional angiographic series with a standard iodine contrast agent. In addition, cross-sectional images were obtained with the new technique of flat panel detector computed tomography (FD-CT) called DYNA-CT. Results: The tumours and the supplying vessels were clearly displayed by FD-CT before and after MDT. The tumours of the study group showed considerable size reductions and the angiography showed a drastic reduction of the tumour supporting vessels following MDT. Conclusion: MDT leads to significant tumour size reductions within several weeks after a single administration of chemotherapy. In this pilot study, FD-CT offered an excellent possibility to monitor the vascularisation and the size of the tumours before and after MDT.
APA:
Lyer, S., Tietze, R., Jurgons, R., Struffert, T., Engelhorn, T., Schreiber, E.,... Alexiou, C. (2010). Visualisation of tumour regression after local chemotherapy with magnetic nanoparticles - A pilot study. Anticancer Research, 30(5), 1553-1557.
MLA:
Lyer, Stefan, et al. "Visualisation of tumour regression after local chemotherapy with magnetic nanoparticles - A pilot study." Anticancer Research 30.5 (2010): 1553-1557.
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