Published in:
Head & Neck, 41 (2019) 2, Seite 403-410
Language:
English
DOI:
10.1002/hed.25460
ISSN:
1043-3074;
1097-0347
Origination:
Footnote:
Description:
AbstractBackgroundThe aim of the study was to evaluate the benefits of the combination of Gadolinium‐based nanoparticles AGuIX and radiotherapy on the recurrence free survival after tumor resection in a head and neck animal orthotopic model.MethodsHuman head and neck CAL33 orthotopic tumors were implanted in female NMRI nude mice. The biodistribution of AGuIX was studied by fluorescence imaging. Tumor resection was performed 19 days after tumor implantation. Radiotherapy was performed 23 days after resection (10 Gy), 1 hour after AGuIX IV injection.ResultsAfter systemic administration, AGuIX passively accumulated in the orthotopic tumors. After tumor surgery, the combination of AGuIX with radiotherapy significantly improved the recurrence free survival and the median survival time (196 days) compared to irradiated only mice (75 days).ConclusionThis study demonstrated the improvement of the recurrence free survival following combination of AGuIX injection with radiotherapy after Head and neck tumor resection.