Therapeutic efficacy of intra‑tumor AvidinOX and low systemic dose biotinylated cetuximab, with and without cisplatin, in an orthotopic model of head and neck cancer

  • Authors:
    • Loredana Vesci
    • Valeria Carollo
    • Antonio Rosi
    • Rita De Santis
  • View Affiliations

  • Published online on: February 1, 2019     https://doi.org/10.3892/ol.2019.10003
  • Pages: 3529-3536
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Abstract

In a previous study, the efficacy of low intraperitoneal doses of biotinylated cetuximab (bCet) in mice with subcutaneous tumor xenografts of human head and neck cancer (HNC) treated intra‑tumors with AvidinOX was reported. Taking into account that the current standard treatment for HNC is the combination of cetuximab and cisplatin, the present study investigated the activity of AvidinOX‑targeted bCet with and without cisplatin in an orthotopic model. The results confirmed that administration of intra‑tumor AvidinOX makes an otherwise inactive dose of bCet effective in reducing tumor growth, and the addition of a low dose of cisplatin further improved tumor growth inhibition. Supporting the in vivo data, immunohistochemical staining of tumor masses from mice treated with AvidinOX, bCet and cisplatin exhibited the highest tumor cell damage and the lowest angiogenic activity among all treatment groups, measured as the number of γ-H2A.X and cleaved caspase‑3‑positive cells, and vascular endothelial growth factor‑C and platelet and endothelial cell adhesion molecule 1‑positive cells, respectively. AvidinOX is currently under clinical investigation to assess its use in delivering radioactive biotin to inoperable tumor lesions (ClinicalTrials.gov: NCT02053324 and NCT03188328). The present study further supported the potential clinical use of AvidinOX to target low bCet doses to inoperable tumor lesions, with or without an additional low dose of cisplatin. Since low doses of highly expensive monoclonal antibodies become effective with AvidinOX and low dose cisplatin, such therapies promise to be cheaper and less toxic than current treatments.
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March-2019
Volume 17 Issue 3

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Vesci L, Carollo V, Rosi A and De Santis R: Therapeutic efficacy of intra‑tumor AvidinOX and low systemic dose biotinylated cetuximab, with and without cisplatin, in an orthotopic model of head and neck cancer. Oncol Lett 17: 3529-3536, 2019
APA
Vesci, L., Carollo, V., Rosi, A., & De Santis, R. (2019). Therapeutic efficacy of intra‑tumor AvidinOX and low systemic dose biotinylated cetuximab, with and without cisplatin, in an orthotopic model of head and neck cancer. Oncology Letters, 17, 3529-3536. https://doi.org/10.3892/ol.2019.10003
MLA
Vesci, L., Carollo, V., Rosi, A., De Santis, R."Therapeutic efficacy of intra‑tumor AvidinOX and low systemic dose biotinylated cetuximab, with and without cisplatin, in an orthotopic model of head and neck cancer". Oncology Letters 17.3 (2019): 3529-3536.
Chicago
Vesci, L., Carollo, V., Rosi, A., De Santis, R."Therapeutic efficacy of intra‑tumor AvidinOX and low systemic dose biotinylated cetuximab, with and without cisplatin, in an orthotopic model of head and neck cancer". Oncology Letters 17, no. 3 (2019): 3529-3536. https://doi.org/10.3892/ol.2019.10003