Evidence map›Paper›PMID 24320879›Full record

ArticleTissue engineering. Part A2014

Low-oxygen culture conditions extend the multipotent properties of human retinal progenitor cells.

Petr Y Baranov, Budd A Tucker, Michael J Young

Open access · greenAbstract read
In one paragraph

Article in Tissue engineering. Part A, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.1field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Retinitis pigmentosa and stem cell therapy.International journal of ophthalmology · 2024
    Review
  5. Article
  6. [Effects of leptin on proliferation and differentiation of hypoxic rat retinal progenitor cellsNan fang yi ke da xue xue bao = Journal of Southern Medical University · 2022
    Article
  7. Review
  8. Retina stem cells, hopes and obstacles.World journal of stem cells · 2021
    Review
  9. Review
  10. Article
  11. Article
  12. Intravitreal Injection of Human Retinal Progenitor Cells for Treatment of Retinal Degeneration.Medical science monitor : international medical journal of experimental and clinical research · 2020
    Article
  13. Retinal stem cell transplantation: Balancing safety and potential.Progress in retinal and eye research · 2020
    Review
  14. Article
  15. Article
  16. Organoid-derived C-KitNature communications · 2019
    Article
  17. Review
  18. Article
  19. A Novel Neuroprotective Small Molecule for Glial Cell Derived Neurotrophic Factor Induction and Photoreceptor Rescue.Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics · 2017
    Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Petr Y Baranov1 The Schepens Eye Research Institute , Boston, Massachusetts.
Budd A Tucker
Michael J Young
Smith-Kettlewell Eye Research Institute · US

Funding

Development of a cell replacement therapy to treat retinal degenerative blindnessDP2OD007483 · OD · UNIVERSITY OF IOWA · PI TUCKER, BUDD A · 2010 to 2010
$2.3M
NIH HHS DP2 OD007483
6 · The paper itself

Abstract

purposeDevelopment of an effective cell-based therapy is highly dependent upon having a reproducible cell source suitable for transplantation. One potential source, isolated from the developing fetal neural retina, is the human retinal progenitor cell (hRPC). One limiting factor for the use of hRPCs is their in vitro expansion limit. As such, the aim of this study was to determine whether culturing hRPCs under 3% O2 would support their proliferative capacity while maintaining multipotency.

methodsTo determine the effect of low oxygen on the ability of hRPCs to self-renew, rates of proliferation and apoptosis, telomerase activity, and expression of proliferative, stemness, and differentiation markers were assessed for hRPCs cultured in 3% and 20% oxygen conditions.

resultsCulture under 3% oxygen increases the proliferation rate and shifts the proliferation limit of hRPCs to greater 40 divisions. This increased capacity for proliferation is correlated with an upregulation of Ki67, CyclinD1, and telomerase activity and a decrease in p53 expression and apoptosis. Increased expression of cMyc, Klf4, Oct4, and Sox2 in 3% O₂ is correlated with stabilization of both HIF1α and HIF2α. The eye field development markers Pax6, Sox2, and Otx2 are present in hRPCs up to passage 16 in 3% O₂ . Following in vitro differentiation hRPCs expanded in the 3% O₂ were able to generate specialized retinal cells, including rods and cones.

conclusionsLow-oxygen culture conditions act to maintain both multipotency and self-renewal properties of hRPCs in vitro. The extended expansion limits permit the development of a clinical-grade reagent for transplantation.

Indexed as

Batch Cell Culture TechniquesCell ProliferationCells, CulturedCell SurvivalHumansKruppel-Like Factor 4Multipotent Stem CellsOxygenRetinal NeuronsTissue EngineeringKLF4 protein, humanKruppel-Like Factor 4Oxygen

Identifiers

PMID24320879
PMCPMC4251088
OpenAlexW1412264545

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.