Open Access

The prognostic importance of the negative regulators of ferroptosis, GPX4 and HSPB1, in patients with colorectal cancer

  • Authors:
    • Tadanobu Shimura
    • Chengzeng Yin
    • Ruiya Ma
    • Aiying Zhang
    • Yuka Nagai
    • Aoi Shiratori
    • Hana Ozaki
    • Shinji Yamashita
    • Koki Higashi
    • Yuki Sato
    • Hiroki Imaoka
    • Takahito Kitajima
    • Mikio Kawamura
    • Yuhki Koike
    • Yoshiki Okita
    • Shigeyuki Yoshiyama
    • Masaki Ohi
    • Akinobu Hayashi
    • Hiroshi Imai
    • Xueming Zhang
    • Yoshinaga Okugawa
    • Yuji Toiyama
  • View Affiliations

  • Published online on: January 15, 2025     https://doi.org/10.3892/ol.2025.14890
  • Article Number: 144
  • Copyright: © Shimura et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The prognostic value of negative regulators of ferroptosis in patients with colorectal cancer (CRC) has not yet been fully elucidated. The present study performed a systematic in silico identification and selection of candidate negative regulators of ferroptosis using The Cancer Genome Atlas data cohort (n=367), followed by clinical validation through immunohistochemistry of samples from patients with CRC (n=166) and further in vitro evaluation. In silico analysis identified specific light‑chain subunit of the cystine/glutamate antiporter, AIFM2, NFE2L2, FTH1, GLS2, glutathione peroxidase 4 (GPX4) and heat shock protein β‑1 (HSPB1) genes as possible candidates. Furthermore, patients with high expression of GPX4 or HSPB1 exhibited significantly worse overall survival (OS) compared with those with low expression (P<0.01 for both). Immunohistochemical analysis revealed that both OS and recurrence‑free survival (RFS) of patients with CRC and high GPX4 or HSPB1 expression were significantly worse compared with in patients with low expression (P<0.01 for all). Furthermore, multivariate analysis showed that high GPX4 and HSPB1 expression were independent risk factors for poor oncological outcome for OS and RFS (GPX4: RFS, P=0.03; HSPB1: OS, P=0.006 and RFS, P<0.0001). Moreover, the effects of GPX4 and HSPB1 small interfering RNAs on two CRC cell lines (DLD‑1 and SW480) indicated that GPX4 and HSPB1 may exhibit important roles in attenuating the cytotoxic effect of 5‑fluorouracil‑based chemotherapy. In conclusion, the current study confirmed that GPX4 and HSPB1 may serve as substantial prognostic‑ and recurrence‑predictive biomarkers in patients with CRC.
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March-2025
Volume 29 Issue 3

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Online ISSN:1792-1082

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Copy and paste a formatted citation
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Spandidos Publications style
Shimura T, Yin C, Ma R, Zhang A, Nagai Y, Shiratori A, Ozaki H, Yamashita S, Higashi K, Sato Y, Sato Y, et al: The prognostic importance of the negative regulators of ferroptosis, GPX4 and HSPB1, in patients with colorectal cancer. Oncol Lett 29: 144, 2025.
APA
Shimura, T., Yin, C., Ma, R., Zhang, A., Nagai, Y., Shiratori, A. ... Toiyama, Y. (2025). The prognostic importance of the negative regulators of ferroptosis, GPX4 and HSPB1, in patients with colorectal cancer. Oncology Letters, 29, 144. https://doi.org/10.3892/ol.2025.14890
MLA
Shimura, T., Yin, C., Ma, R., Zhang, A., Nagai, Y., Shiratori, A., Ozaki, H., Yamashita, S., Higashi, K., Sato, Y., Imaoka, H., Kitajima, T., Kawamura, M., Koike, Y., Okita, Y., Yoshiyama, S., Ohi, M., Hayashi, A., Imai, H., Zhang, X., Okugawa, Y., Toiyama, Y."The prognostic importance of the negative regulators of ferroptosis, GPX4 and HSPB1, in patients with colorectal cancer". Oncology Letters 29.3 (2025): 144.
Chicago
Shimura, T., Yin, C., Ma, R., Zhang, A., Nagai, Y., Shiratori, A., Ozaki, H., Yamashita, S., Higashi, K., Sato, Y., Imaoka, H., Kitajima, T., Kawamura, M., Koike, Y., Okita, Y., Yoshiyama, S., Ohi, M., Hayashi, A., Imai, H., Zhang, X., Okugawa, Y., Toiyama, Y."The prognostic importance of the negative regulators of ferroptosis, GPX4 and HSPB1, in patients with colorectal cancer". Oncology Letters 29, no. 3 (2025): 144. https://doi.org/10.3892/ol.2025.14890