Kidney organoid derived from renal tissue stem cells is a useful tool for histopathological assessment of nephrotoxicity in a cisplatin-induced acute renal tubular injury model

Shota Ueno, Kenji Kokura, Yasushi Kuromi, Mitsuhiko Osaki, Futoshi Okada, Shinji Kitamura, Tetsuya Ohbayashi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Organoids derived from renal tissue stem cells (KS cells) isolated from the S3 segment of adult rat nephrons have previously been developed and evaluated. However, data regarding the histopathological evaluation of these organoids are limited. Therefore, in this study, we performed histopathological examinations of the properties of these organoids and evaluated the nephrotoxicity changes induced by cisplatin treatment. We observe that the tubular structure of the organoids was generally lined by a single layer of cells, in concordance with previous findings. Microvilli were exclusively observed under electron microscopy on the luminal side of this tubular structure. Moreover, the luminal side of the tubular structure was positive for aquaporin-1 (Aqp1), a marker of the proximal renal tubule. Cisplatin treatment induced cell death and degeneration, including cytoplasmic vacuolation, in cells within the tubular structure of the organoids. Cisplatin toxicity is associated with the induction of γ-H2AX (a marker of DNA damage) and the drop of phospho-histone H3 (a marker of cell division) levels. During the nephrotoxicity assessment, the kidney organoids displayed various features similar to those of the natural kidney, suggesting that it is possible to use these organoids in predicting nephrotoxicity. The histological evaluation of the organoids in this study provides insights into the mechanisms underlying nephrotoxicity.

Original languageEnglish
Pages (from-to)333-343
Number of pages11
JournalJournal of Toxicologic Pathology
Volume35
Issue number4
DOIs
Publication statusPublished - 2022

Keywords

  • cisplatin
  • immunohistochemistry
  • kidney
  • organoids

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Toxicology

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