Frontiers in Molecular Biosciences (Sep 2022)

A cuproptosis-related lncRNA signature identified prognosis and tumour immune microenvironment in kidney renal clear cell carcinoma

  • Sheng Xin,
  • Sheng Xin,
  • Jiaquan Mao,
  • Jiaquan Mao,
  • Kai Cui,
  • Kai Cui,
  • Qian Li,
  • Liang Chen,
  • Liang Chen,
  • Qinyu Li,
  • Qinyu Li,
  • Bocheng Tu,
  • Bocheng Tu,
  • Xiaming Liu,
  • Xiaming Liu,
  • Tao Wang,
  • Tao Wang,
  • Shaogang Wang,
  • Shaogang Wang,
  • Jihong Liu,
  • Jihong Liu,
  • Xiaodong Song,
  • Xiaodong Song,
  • Wen Song,
  • Wen Song

DOI
https://doi.org/10.3389/fmolb.2022.974722
Journal volume & issue
Vol. 9

Abstract

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Kidney renal clear cell carcinoma (KIRC) is a heterogeneous malignant tumor with high incidence, metastasis, and mortality. The imbalance of copper homeostasis can produce cytotoxicity and cause cell damage. At the same time, copper can also induce tumor cell death and inhibit tumor transformation. The latest research found that this copper-induced cell death is different from the known cell death pathway, so it is defined as cuproptosis. We included 539 KIRC samples and 72 normal tissues from the Cancer Genome Atlas (TCGA) in our study. After identifying long non-coding RNAs (lncRNAs) significantly associated with cuproptosis, we clustered 526 KIRC samples based on the prognostic lncRNAs and obtained two different patterns (Cuproptosis.C1 and C2). C1 indicated an obviously worse prognostic outcome and possessed a higher immune score and immune cell infiltration level. Moreover, a prognosis signature (CRGscore) was constructed to effectively and accurately evaluate the overall survival (OS) of KIRC patients. There were significant differences in tumor immune microenvironment (TIME) and tumor mutation burden (TMB) between CRGscore-defined groups. CRGscore also has the potential to predict medicine efficacy.

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