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Potential therapeutic efficiency of pan-ERBB inhibitors for canine glioma

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Abstract

Canine glioma is one of the most common brain tumors with poor prognosis, making effective chemotherapy highly desirable. Previous studies have suggested that ERBB4, a signaling molecule involving one of the epidermal growth factor receptors (EGFR), may be a promising therapeutic target. In this study, the anti-tumor effects of pan-ERBB inhibitors, which can inhibit the phosphorylation of ERBB4, were evaluated both in vitro and in vivo using a canine glioblastoma cell line. The results demonstrated that both afatinib and dacomitinib effectively reduced the expression of phosphorylated ERBB4, and significantly decreased the number of viable cells, ultimately prolonging the survival time of orthotopically xenografted mice. Further downstream of ERBB4, afatinib was found to suppress the expression of phosphorylated Akt and phosphorylated Extracellular signal-related kinases1 and 2 (ERK1/2) and induced apoptotic cell death. Thus, pan-ERBB inhibition is a promising therapeutic strategy for the treatment of canine gliomas.

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Data Availability

The datasets generated and analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

We express our gratitude to Prof. Kazuhiko Kurozumi (Hamamatsu University School of Medicine) for providing the canine glioblastoma cell line. Additionally, we extend our thanks to Dr. Miyu Tanaka (Laboratory of Veterinary Pathology, Osaka Metropolitan University) for kindly assisting with the histological evaluation.

Funding

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

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Authors and Affiliations

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Contributions

All the authors contributed to the conception and design of the study. Shunsuke Noguchi and Moeka Yasumura conducted material preparation, data collection, and analysis. Shunsuke Noguchi wrote the first draft of the manuscript, and all authors provided feedback on previous versions of the manuscript. All authors read and approved the final version of the manuscript.

Corresponding author

Correspondence to Shunsuke Noguchi.

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Ethics approval

This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of Osaka Metropolitan University (14 May 2021/No. 21-129).

Competing interests

The authors declare no competing interests.

Statement of Animal Ethics

Animal experiment protocol was approved by the Committee for Animal Research and Welfare of Osaka Prefecture University.

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Noguchi, S., Yasumura, M. Potential therapeutic efficiency of pan-ERBB inhibitors for canine glioma. Vet Res Commun 47, 2207–2213 (2023). https://doi.org/10.1007/s11259-023-10117-x

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  • DOI: https://doi.org/10.1007/s11259-023-10117-x

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