JOURNAL OF SHANGHAI JIAOTONG UNIVERSITY (MEDICAL SCIENCE) ›› 2021, Vol. 41 ›› Issue (12): 1603-1611.doi: 10.3969/j.issn.1674-8115.2021.12.009

• Basic research • Previous Articles    

Changes of m6A methylation in renal tissue during cisplatin-induced acute injury

Jian-xiao SHEN1(), Wan-peng WANG2, Xing-hua SHAO1, Jing-kui WU1, Shu LI1, Xia-jing CHE1, Zhao-hui NI1()   

  1. 1.Department of Nephrology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
    2.Department of Nephrology, Lianshui People's Hospital, Jiangsu Province, Lianshui 223400, China
  • Received:2021-08-12 Online:2021-12-28 Published:2022-01-28
  • Contact: Zhao-hui NI;
  • Supported by:
    National Natural Science Foundation of China(81700586);Key Shanghai Laboratory of Nucleic Acid Chemistry and Nanomedicine(2020ZYB009);Clinical Research Plan of Shenkang Hospital Development Center(SHDC2020CR3029B);Science and Research Fund of Shanghai Municipal Health Commission(ZHYY-ZXYJHZX-202014);Fund from Science and Technology Commission of Shanghai Municipality(13401906100)

Abstract: Objective

·To investigate the role of N6-methyladenosine (m6A) methylation modification in the process of cisplatin-induced acute injury in mice.


·Four C57BL/6 mice were injected with cisplatin (20 mg/kg) through tail vein (the injury group); Another 4 C57BL/6 mice were injected with the same amount of saline (the control group). The changes of serum creatinine and urea nitrogen levels in the mice and the pathological injury in the renal tissue sections of the mice were evaluated to judge the success of the model. Methylated RNA immunoprecipitation (MeRIP) and RNA sequencing were used to detect the changes of m6A methylation and RNA expression in the kidney tissue of the two groups of mice. Gene ontology and Kyoto Encyclopedia of genes and genomes were used for visualization and comprehensive research. Transcriptome data and epigenetic data were combined to find candidate genes for pathological changes of cisplatin-induced acute injury.


·Cisplatin could induce significant increase in the levels of serum creatinine and urea nitrogen compared with those in the baseline. Light microscope showed extensive tubular vacuolar degeneration, epithelial cell exfoliation and tubular necrosis, suggesting the success of modeling. MeRIP detection showed that a total of 2 277 genes contained 2 981 differentially expressed m6A methylation sites (expression multiple ≥2 and P<0.05) in the kidneys of mice in the injury group and the control group. These genes were mainly concentrated in the metabolic and cell death pathways. The joint analysis of genes expressing differential m6A methylation sites and RNA differential expression genes found 1 002 genes with the same expression trend, such as fibrinogen α chain, solute carrier family 12 member 1 and hepatitis A virus cellular receptor 1.


·Cisplatin can induce the change of methylation level of m6A methylation site on mRNA in renal tissue, and promote the process of acute renal injury.

Key words: N6-methyladenosine (m6A) methylome, cisplatin-induced acute kidney injury (CI-AKI), fibrinogen α chain (FGA), solute carrier family 12 member 1 (Slc12a1), hepatitis A virus cellular receptor 1 (Harvc1)

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