Open Access

Homologous recombination deficiency serves as a prognostic biomarker in clear cell renal cell carcinoma

  • Authors:
    • Liping He
    • Feng Gao
    • Jingyu Zhu
    • Qiaoping Xu
    • Qiqi Yu
    • Mei Yang
    • Yasheng Huang
  • View Affiliations

  • Published online on: July 21, 2023     https://doi.org/10.3892/etm.2023.12128
  • Article Number: 429
  • Copyright: © He et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Kidney renal clear cell carcinoma (KIRC) is a frequent malignant tumor characterized by a high degree of heterogeneity and genetic instability. DNA double‑strand breaks generated by homologous recombination deficit (HRD) are a well‑known contributor to genomic instability, which can encourage tumor development. It is not known, however, whether the molecular characteristics linked with HRD have a predictive role in KIRC. The discovery cohort comprised 501 KIRC patients from The Cancer Genome Atlas database. Genome and transcriptome data of HRD patients were used for comprehensive analysis. Single cell RNA sequencing (scRNA‑seq) was used to verify the test results of bulk RNA‑seq. In the present study, patients with a high HRD score had a worse prognosis compared with those with a low HRD score. The DNA damage response signaling pathways and immune‑related signaling pathways were notably enriched in the HRD‑positive subgroup. Further comprehensive analysis of the tumor microenvironment (TME) revealed that the signal of exhausted CD8+ T cells was enriched in the HRD‑positive subgroup. Finally, scRNA‑seq analyses confirmed that the immune‑related signaling pathways were upregulated in HRD‑positive patients. In conclusion, the present study not only demonstrated that a high HRD score is a valid prognostic biomarker in KIRC patients, but also revealed the TME in HRD‑positive tumors.
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September-2023
Volume 26 Issue 3

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
He L, Gao F, Zhu J, Xu Q, Yu Q, Yang M and Huang Y: Homologous recombination deficiency serves as a prognostic biomarker in clear cell renal cell carcinoma. Exp Ther Med 26: 429, 2023
APA
He, L., Gao, F., Zhu, J., Xu, Q., Yu, Q., Yang, M., & Huang, Y. (2023). Homologous recombination deficiency serves as a prognostic biomarker in clear cell renal cell carcinoma. Experimental and Therapeutic Medicine, 26, 429. https://doi.org/10.3892/etm.2023.12128
MLA
He, L., Gao, F., Zhu, J., Xu, Q., Yu, Q., Yang, M., Huang, Y."Homologous recombination deficiency serves as a prognostic biomarker in clear cell renal cell carcinoma". Experimental and Therapeutic Medicine 26.3 (2023): 429.
Chicago
He, L., Gao, F., Zhu, J., Xu, Q., Yu, Q., Yang, M., Huang, Y."Homologous recombination deficiency serves as a prognostic biomarker in clear cell renal cell carcinoma". Experimental and Therapeutic Medicine 26, no. 3 (2023): 429. https://doi.org/10.3892/etm.2023.12128