The Use of Panitumumab-IRDye800CW in a Novel Murine Model for Conjunctival Squamous Cell Carcinoma

Gun Min Youn, Ayden G. Case, Trent Jarin, Baoxiang Li, Aditi Swarup, Andrea Naranjo, Charbel Bou-Khalil, Jacqueline Yao, Quan Zhou, Marisa E. Hom, Eben L. Rosenthal, Albert Y. Wu

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Purpose: Conjunctival squamous cell carcinoma (SCC) is a sight-threatening ocular surface malignancy with the primary treatment modality being surgical resection. To evaluate surgical imaging modalities to improve surgical resection, we estab-lished a novel murine model for conjunctival SCC to demonstrate the utility of panitumumab-IRDye800, a fluorescently labeled anti-epidermal growth factor receptor (EGFR) antibody. Methods: NOD-scid IL2Rgammanull (NSG) mice received subconjunctival injection of UM-SCC-1 or SCC-9, head and neck SCC cell lines. On tumor growth, mice were injected with Panitumumab-IRDye800CW, and imaged with a small animal imaging system and optical coherence tomography (OCT). Immunohistochemistry for SCC markers were used to confirm tumor origin. Results: Seventy-five percent (N = 4) of the UM-SCC-1 group developed aggressive, rapidly growing tumors that were P40 and EGFR positive within two weeks of inocula-tion. The SCC-9 tumors failed to demonstrate any growth (N = 4). Ocular tumors demonstrated high fluorescence levels with a tumor to background ratio of 3.8. Conclusions: Subconjunctival injections are an appropriate technique to create in vivo models for assessing treatment modalities and novel therapies in conjunctival SCC. Translational Relevance: This model demonstrates Panitumumab-IRDye800CW’s utility in the ophthalmic setting and suggests that clinical trials may be warranted.

Original languageEnglish
Article number23
JournalTranslational Vision Science and Technology
Volume11
Issue number7
DOIs
StatePublished - Jul 2022
Externally publishedYes

Keywords

  • conjunctiva
  • fluorescent probes
  • panitumumab-IRDye800
  • squamous cell carcinoma

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