MicroRNA-375 is induced in cisplatin nephrotoxicity to repress hepatocyte nuclear factor 1-β

Jielu Hao, Qiang Lou, QingQing Wei, Shuqin Mei, Lin Li, Guangyu Wu, Qing Sheng Mi, Changlin Mei, Zheng Dong

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Abstract

Nephrotoxicity is a major adverse effect of cisplatin-mediated chemotherapy in cancer patients. The pathogenesis of cisplatin-induced nephrotoxicity remains largely unclear, making it difficult to design effective renoprotective approaches. Here, we have examined the role of microRNAs (miRNAs) in cisplatininduced nephrotoxicity. We show that cisplatin nephrotoxicity was not affected by overall depletion of both beneficial and detrimental miRNAs from kidney proximal tubular cells in mice in which the miRNA-generating enzyme Dicer had been conditionally knocked out. To identify miRNAs involved in cisplatin nephrotoxicity, we used microarray analysis to profile miRNA expression and identified 47 up-regulated microRNAs and 20 down-regulated microRNAs in kidney cortical tissues. One upregulated miRNA was miR-375, whose expression was also induced in cisplatin-treated renal tubular cells. Interestingly, inhibition of miR-375 decreased cisplatin-induced apoptosis, suggesting that miR-375 is a cell-damaging or pro-apoptotic agent. Blockade of P53 or NF-κB attenuated cisplatin-induced miR-375 expression, supporting a role of P53 and NF-κB in miR-375 induction. We also identified hepatocyte nuclear factor 1 homeobox B (HNF-1β) as a key downstream target of miR-375. Of note, we further demonstrated that HNF-1β protected renal cells against cisplatin-induced apoptosis. Together, these results suggest that upon cisplatin exposure, P53 and NF-κB collaboratively induce miR-375 expression, which, in turn, represses HNF-1β activity, resulting in renal tubular cell apoptosis and nephrotoxicity.

Original languageEnglish (US)
Pages (from-to)4571-4582
Number of pages12
JournalJournal of Biological Chemistry
Volume292
Issue number11
DOIs
StatePublished - Mar 17 2017

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Hepatocyte Nuclear Factor 1
MicroRNAs
Cisplatin
Homeobox Genes
Kidney
Apoptosis
Ribonuclease III
Chemotherapy
Microarray Analysis
Microarrays

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

MicroRNA-375 is induced in cisplatin nephrotoxicity to repress hepatocyte nuclear factor 1-β. / Hao, Jielu; Lou, Qiang; Wei, QingQing; Mei, Shuqin; Li, Lin; Wu, Guangyu; Mi, Qing Sheng; Mei, Changlin; Dong, Zheng.

In: Journal of Biological Chemistry, Vol. 292, No. 11, 17.03.2017, p. 4571-4582.

Research output: Contribution to journalArticle

Hao, Jielu ; Lou, Qiang ; Wei, QingQing ; Mei, Shuqin ; Li, Lin ; Wu, Guangyu ; Mi, Qing Sheng ; Mei, Changlin ; Dong, Zheng. / MicroRNA-375 is induced in cisplatin nephrotoxicity to repress hepatocyte nuclear factor 1-β. In: Journal of Biological Chemistry. 2017 ; Vol. 292, No. 11. pp. 4571-4582.
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