Open Access

Antitumor activities of anti‑CD44 monoclonal antibodies in mouse xenograft models of esophageal cancer

  • Authors:
    • Kenichiro Ishikawa
    • Hiroyuki Suzuki
    • Tomokazu Ohishi
    • Takuro Nakamura
    • Miyuki Yanaka
    • Guanjie Li
    • Tomohiro Tanaka
    • Akira Ohkoshi
    • Manabu Kawada
    • Mika K. Kaneko
    • Yukio Katori
    • Yukinari Kato
  • View Affiliations

  • Published online on: August 29, 2024     https://doi.org/10.3892/or.2024.8806
  • Article Number: 147
  • Copyright: © Ishikawa et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

CD44 is a type I transmembrane glycoprotein associated with poor prognosis in various solid tumors. Since CD44 plays a critical role in tumor development by regulating cell adhesion, survival, proliferation and stemness, it has been considered a target for tumor therapy. Anti‑CD44 monoclonal antibodies (mAbs) have been developed and applied to antibody‑drug conjugates and chimeric antigen receptor‑T cell therapy. Anti-pan‑CD44 mAbs, C44Mab‑5 and C44Mab‑46, which recognize both CD44 standard (CD44s) and variant isoforms were previously developed. The present study generated a mouse IgG2a version of the anti‑pan‑CD44 mAbs (5‑mG2a and C44Mab‑46‑mG2a) to evaluate the antitumor activities against CD44‑positive cells. Both 5‑mG2a and C44Mab‑46‑mG2a recognized CD44s‑overexpressed CHO‑K1 (CHO/CD44s) cells and esophageal tumor cell line (KYSE770) in flow cytometry. Furthermore, both 5‑mG2a and C44Mab‑46‑mG2a could activate effector cells in the presence of CHO/CD44s cells and exhibited complement-dependent cytotoxicity against both CHO/CD44s and KYSE770 cells. Furthermore, the administration of 5‑mG2a and C44Mab‑46‑mG2a significantly suppressed CHO/CD44s and KYSE770 xenograft tumor development compared with the control mouse IgG2a. These results indicate that 5‑mG2a and C44Mab‑46‑mG2a could exert antitumor activities against CD44‑positive cancers and be a promising therapeutic regimen for tumors.
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November-2024
Volume 52 Issue 5

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

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Spandidos Publications style
Ishikawa K, Suzuki H, Ohishi T, Nakamura T, Yanaka M, Li G, Tanaka T, Ohkoshi A, Kawada M, Kaneko MK, Kaneko MK, et al: Antitumor activities of anti‑CD44 monoclonal antibodies in mouse xenograft models of esophageal cancer. Oncol Rep 52: 147, 2024.
APA
Ishikawa, K., Suzuki, H., Ohishi, T., Nakamura, T., Yanaka, M., Li, G. ... Kato, Y. (2024). Antitumor activities of anti‑CD44 monoclonal antibodies in mouse xenograft models of esophageal cancer. Oncology Reports, 52, 147. https://doi.org/10.3892/or.2024.8806
MLA
Ishikawa, K., Suzuki, H., Ohishi, T., Nakamura, T., Yanaka, M., Li, G., Tanaka, T., Ohkoshi, A., Kawada, M., Kaneko, M. K., Katori, Y., Kato, Y."Antitumor activities of anti‑CD44 monoclonal antibodies in mouse xenograft models of esophageal cancer". Oncology Reports 52.5 (2024): 147.
Chicago
Ishikawa, K., Suzuki, H., Ohishi, T., Nakamura, T., Yanaka, M., Li, G., Tanaka, T., Ohkoshi, A., Kawada, M., Kaneko, M. K., Katori, Y., Kato, Y."Antitumor activities of anti‑CD44 monoclonal antibodies in mouse xenograft models of esophageal cancer". Oncology Reports 52, no. 5 (2024): 147. https://doi.org/10.3892/or.2024.8806