Open Access

In vitro anticancer effects of alpelisib against PIK3CA‑mutated canine hemangiosarcoma cell lines

  • Authors:
    • Marika Maeda
    • Kazuhiko Ochiai
    • Masaki Michishita
    • Masami Morimatsu
    • Hiroki Sakai
    • Nayuta Kinoshita
    • Motoharu Sakaue
    • Eri Onozawa
    • Daigo Azakami
    • Masami Yamamoto
    • Katsumi Ishioka
    • Takuya Sadahira
    • Masami Watanabe
    • Yoshikazu Tanaka
  • View Affiliations

  • Published online on: February 25, 2022     https://doi.org/10.3892/or.2022.8295
  • Article Number: 84
  • Copyright: © Maeda et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Hemangiosarcoma (HSA) is a malignant neoplasm that occurs in humans and canines with a poor prognosis owing to metastatic spread, despite effective treatment. The frequency of spontaneous HSA development is higher in canines than in humans. Therefore, canine HSA is a useful model of intractable human disease, which requires early detection and an effective therapeutic strategy. A high frequency of the p110α phosphatidylinositol‑4,5‑bisphosphate 3‑kinase catalytic subunit alpha (PIK3CA) mutations is detected in a comprehensive genome‑wide analysis of canine cases of HSA. The present cloned the full‑length cDNA of canine PIK3CA and identified a mutation in codon 1047 from canine cases of HSA and cell lines that were established from these. The enforced expression of the 1047th histidine residue (H1047)R or L mutants of canine PIK3CA in HeLa cells enhanced epidermal growth factor receptor (EGFR) signaling via Akt phosphorylation. PIK3CA mutant canine HSA cell lines exhibited the hyperphosphorylation of Akt upon EGF stimulation as well. Alpelisib, a molecular targeted drug against PIK3CA activating mutations, exerted a significant antitumor effect in canine PIK3CA‑mutated HSA cell lines. By contrast, it had no significant effect on canine mammary gland tumor cell lines harboring PIK3CA mutations. On the whole, the findings of the present study suggest that alpelisib may be highly effective against PIK3CA mutations that occur frequently in canine HSA.
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April-2022
Volume 47 Issue 4

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Maeda M, Ochiai K, Michishita M, Morimatsu M, Sakai H, Kinoshita N, Sakaue M, Onozawa E, Azakami D, Yamamoto M, Yamamoto M, et al: <em>In vitro</em> anticancer effects of alpelisib against PIK3CA‑mutated canine hemangiosarcoma cell lines. Oncol Rep 47: 84, 2022
APA
Maeda, M., Ochiai, K., Michishita, M., Morimatsu, M., Sakai, H., Kinoshita, N. ... Tanaka, Y. (2022). <em>In vitro</em> anticancer effects of alpelisib against PIK3CA‑mutated canine hemangiosarcoma cell lines. Oncology Reports, 47, 84. https://doi.org/10.3892/or.2022.8295
MLA
Maeda, M., Ochiai, K., Michishita, M., Morimatsu, M., Sakai, H., Kinoshita, N., Sakaue, M., Onozawa, E., Azakami, D., Yamamoto, M., Ishioka, K., Sadahira, T., Watanabe, M., Tanaka, Y."<em>In vitro</em> anticancer effects of alpelisib against PIK3CA‑mutated canine hemangiosarcoma cell lines". Oncology Reports 47.4 (2022): 84.
Chicago
Maeda, M., Ochiai, K., Michishita, M., Morimatsu, M., Sakai, H., Kinoshita, N., Sakaue, M., Onozawa, E., Azakami, D., Yamamoto, M., Ishioka, K., Sadahira, T., Watanabe, M., Tanaka, Y."<em>In vitro</em> anticancer effects of alpelisib against PIK3CA‑mutated canine hemangiosarcoma cell lines". Oncology Reports 47, no. 4 (2022): 84. https://doi.org/10.3892/or.2022.8295