ArticleStem cell research & therapy2016
The role of long-term label-retaining cells in the regeneration of adult mouse kidney after ischemia/reperfusion injury.
Article in Stem cell research & therapy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 7 citations in OpenAlex.
- Article
- The Role of Long Term Label-Retaining Cells in the Treatment of Erectile Dysfunction by Vacuum Erectile Device.Sexual medicine · 2021Article
- Kidney Cells Regeneration: Dedifferentiation of Tubular Epithelium, Resident Stem Cells and Possible Niches for Renal Progenitors.International journal of molecular sciences · 2019Review
- Gcm1 is involved in cell proliferation and fibrosis during kidney regeneration after ischemia-reperfusion injury.Scientific reports · 2019Article
- Phenotypic Analysis of BrdU Label-Retaining Cells during the Maturation of Conducting Airway Epithelium in a Porcine Lung.Stem cells international · 2019Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundLabel-retaining cells (LRCs) have been recognized as rare stem and progenitor-like cells, but their complex biological features in renal repair at the cellular level have never been reported. This study was conducted to evaluate whether LRCs in kidney are indeed renal stem/progenitor cells and to delineate their potential role in kidney regeneration.
methodsWe utilized a long-term pulse chase of 5-bromo-2'-deoxyuridine (BrdU)-labeled cells in C57BL/6J mice to identify renal LRCs. We tracked the precise morphological characteristics and locations of BrdU(+)LRCs by both immunohistochemistry and immunofluorescence. To examine whether these BrdU(+)LRCs contribute to the repair of acute kidney injury, we analyzed biological characteristics of BrdU(+)LRCs in mice after ischemia/reperfusion (I/R) injury.
resultsThe findings revealed that the nuclei of BrdU(+) LRCs exhibited different morphological characteristics in normal adult kidneys, including nuclei in pairs or scattered, fragmented or intact, strongly or weakly positive. Only 24.3 ± 1.5 % of BrdU(+) LRCs co-expressed with Ki67 and 9.1 ± 1.4 % of BrdU(+) LRCs were positive for TUNEL following renal I/R injury. Interestingly, we found that newly regenerated cells formed a niche-like structure and LRCs in pairs tended to locate in this structure, but the number of those LRCs was very low. We found a few scattered LRCs co-expressed Lotus tetragonolobus agglutinin (LTA) in the early phase of injury, suggesting differentiation of those LRCs in mouse kidney.
conclusionsOur findings suggest that LRCs are not a simple type of slow-cycling cells in adult kidneys, indicating a limited role of these cells in the regeneration of I/R injured kidney. Thus, LRCs cannot reliably be considered stem/progenitor cells in the regeneration of adult mouse kidney. When researchers use this technique to study the cellular basis of renal repair, these complex features of renal LRCs and the purity of real stem cells among renal LRCs should be considered.
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