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학술저널
저자정보
Juan Carlos Alvarez Moreno (Mount Sinai Medical Center) Hisham F. Bahmad (Mount Sinai Medical Center) Christopher A. Febres-Aldana (Arkadi M. Rywlin Department of Pathology and Labor Medicine Mount Sinai Medical Center) Andrés Pirela (Mount Sinai Medical Center) Andres Azuero (Mount Sinai Medical Center) Ali Salami (Lebanese University) Robert Poppiti (Arkadi M. Rywlin Department of Pathology and Laboratory Medicine Mount Sinai Medical Center Miami)
저널정보
대한병리학회 Journal of Pathology and Translational Medicine Journal of Pathology and Translational Medicine 제55권 제6호
발행연도
2021.11
수록면
369 - 379 (11page)
DOI
10.4132/jptm.2021.08.03

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Background: Acute kidney injury (AKI) is a common cause of morbidity and mortality. It mainly targets the renal tubular epithelium with pathological changes, referred to as acute tubular injury. The latter is followed by a regenerative response that is difficult to visualize on routine hematoxylin and eosin (H&E) stains. In this study, we examined the regenerative capacity of renal tubules by correlating vimentin (VIM) immunohistochemical (IHC) expression and pathological findings of AKI and renal tubular regeneration (RTR) on H&E.Methods: We reviewed 23 autopsies performed in the clinical setting of AKI and RTR. VIM expression was scored in the renal cortical tubular epithelium using a statistical cutoff ≥ 3% for high expression and < 3% for low expression.Results: Of the 23 kidney tissues examined, seven (30.4%) had low VIM expression, and 16 (69.6%) had high VIM expression. Kidney tissues with evidence of AKI and RTR had significantly higher VIM expression. Renal peritubular microenvironment features showing regenerative changes on H&E were associated with high VIM expression. In the univariate model, kidney tissues with RTR were 18-fold more likely to have high VIM expression.Conclusions: In conclusion, our findings suggest that VIM could serve as an IHC marker for RTR following AKI. However, correlation with H&E findings remains critical to excluding chronic tubular damage. Collectively, our preliminary results pave the way for future studies including a larger sample size to validate the use of VIM as a reliable biomarker for RTR.

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