Cited by 72Renal and related cancersMesenchymal stem cell researchTissue Engineering and Regenerative Medicine

Kidney Spheroids Recapitulate Tubular Organoids Leading to Enhanced Tubulogenic Potency of Human Kidney-Derived Cells

Buzhor, Ella, Harari-Steinberg, Orit, Omer, Dorit, Metsuyanim, Sally, Jacob-Hirsch, Jasmine, Noiman, Tsahi, Dotan, Zohar, Goldstein, Ronald S. +1 more·2011·Tissue Engineering Part A

Abstract

Cell-based approaches utilizing autologous human renal cells require their isolation, expansion in vitro, and reintroduction back into the host for renal tissue regeneration. Nevertheless, human kidney epithelial cells (hKEpCs) lose their phenotype, dedifferentiate, and assume the appearance of fibroblasts after relatively few passages in culture. We hypothesized that growth conditions may influence hKEpC phenotype and function. hKEpCs retrieved from human nephrectomy tissue samples showed the ability to reproducibly form kidney spheres when grown in suspension culture developed in nonadherent conditions. Genetic labeling and time-lapse microscopy indicated, at least in part, the aggregation of hKEpCs into 3D spheroids rather than formation of pure clonally expanded spheres. Characterization of hKEpC spheroids by real-time polymerase chain reaction and FACS analysis showed upregulation of some renal developmental and "stemness" markers compared with monolayer and mostly an EpCAM(+)CD24(+)CD133(+)CD44(+) spheroid cell phenotype. Oligonucleotide microarrays, which were used to identify global transcriptional changes accompanying spheroid formation, showed predominantly upregulation of cell matrix/cell contact molecules and cellular biogenesis processes and downregulation of cell cycle, growth, and locomotion. Accordingly, hKEpC spheroids slowly proliferated as indicated by low Ki-67 staining, but when grafted in low cell numbers onto the chorioallantoic membrane (CAM) of the chick embryo, they exclusively reconstituted various renal tubular epithelia. Moreover, efficient generation of kidney spheroids was observed after long-term monolayer culture resulting in reestablishment of tubulogenic capacity upon CAM grafting. Thus, generation of a tubular organoid in hKEpC spheroids may provide a functional benefit for kidney-derived cells in vivo.

Integrity signals

Registry

Crossref · 10.1089/ten.tea.2010.0595

Cites

48 of 48 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Spheroid cell culture has been developed for research on cancer, stem cells, and many organs, including liver, kidney, and heart.

    “This approach has been developed in the research of cancer (7, 76, 102), stem cells (17, 120), and many organs (such as liver, kidney, heart, etc.) (3,16,64,75).”

    From Modeling physiological events in 2D vs. 3D cell culture (2017) · cites this paper as [16]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Buzhor, E., Harari-Steinberg, O., Omer, D., Metsuyanim, S., Jacob-Hirsch, J., Noiman, T., Dotan, Z., Goldstein, R. S., & Dekel, B.
Affiliations
  • Tel Aviv University (IL)
  • Sheba Medical Center, Pediatric Stem Cell Research Institute, Edmond and Lili Safra Children's Hospital, Tel Hashomer, Israel.
  • Bar-Ilan University (IL)
  • Sheba Cancer Research Center, Sheba Medical Center, Tel Hashomer, Israel.
  • Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan, Israel.
  • Sheba Medical Center (IL)
Corresponding author
Dekel, Benjamin
Venue
Tissue Engineering Part A
Published
2011-09
Volume
17
Issue
17-18
Pages
2305-2319
ISSN
  • 1937-3341 (ISSN-L)
  • 1937-335X
OpenAlex
W1969366572
Cited by
72
References
48
Citations by year
2026: 1 · 2025: 2 · 2024: 2 · 2023: 5 · 2022: 7 · 2021: 9 · 2020: 9 · 2019: 1 · 2018: 2 · 2017: 9 · 2016: 1 · 2015: 7 · 2014: 7 · 2013: 9 · 2012: 1
FWCI
2.21
Type
journal article
Language
en
Open access
closed
Locations
  • Tissue Engineering Part A (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Renal and related cancers
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
Keywords
kidney regeneration, 3D cell culture, spheroid formation, dedifferentiation, stem cell markers, gene expression changes
MeSH terms
Cells, Cultured, Flow Cytometry, Humans, Kidney, Organoids, Spheroids, Cellular, Cell Culture Techniques, Microarray Analysis

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review