Evidence map›Paper›PMID 33276809›Full record

ReviewStem cell research & therapy2020

Regenerative capacity of the corneal transition zone for endothelial cell therapy.

Nicole Ming Sie, Gary Hin-Fai Yam, Yu Qiang Soh, Matthew Lovatt, Deepinder Dhaliwal, Viridiana Kocaba, Jodhbir S Mehta

Open access · goldAbstract readReview
In one paragraph

Review in Stem cell research & therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 6% 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

34 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

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  10. Biomedical Application of MSCs in Corneal Regeneration and Repair.International journal of molecular sciences · 2025
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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

7 authors at 5 institutions in 3 countries.

Nicole Ming SieTissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, 20 College Road, The Academia, Discovery Tower Level 6, Singapore, 169856, Singapore.
Gary Hin-Fai YamTissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, 20 College Road, The Academia, Discovery Tower Level 6, Singapore, 169856, Singapore. yamg@pitt.edu.ORCID 0000-0002-8445-3669
Yu Qiang SohTissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, 20 College Road, The Academia, Discovery Tower Level 6, Singapore, 169856, Singapore.
Matthew LovattTissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, 20 College Road, The Academia, Discovery Tower Level 6, Singapore, 169856, Singapore.
Deepinder DhaliwalDepartment of Ophthalmology, University of Pittsburgh, Pittsburgh, PA, 15213, USA.
Viridiana KocabaTissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, 20 College Road, The Academia, Discovery Tower Level 6, Singapore, 169856, Singapore.
Jodhbir S MehtaTissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, 20 College Road, The Academia, Discovery Tower Level 6, Singapore, 169856, Singapore. jodmehta@gmail.com.
Singapore National Eye Center · SGUniversity of Pittsburgh · USNanyang Technological University · SGNetherlands Institute for Innovative Ocular Surgery · NLSingapore Eye Research Institute · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The corneal endothelium located on the posterior corneal surface is responsible for regulating stromal hydration. This is contributed by a monolayer of corneal endothelial cells (CECs), which are metabolically active in a continuous fluid-coupled efflux of ions from the corneal stroma into the aqueous humor, preventing stromal over-hydration and preserving the orderly arrangement of stromal collagen fibrils, which is essential for corneal transparency. Mature CECs do not have regenerative capacity and cell loss due to aging and diseases results in irreversible stromal edema and a loss of corneal clarity. The current gold standard of treatment for this worldwide blindness caused by corneal endothelial failure is the corneal transplantation using cadaveric donor corneas. The top indication is Fuchs corneal endothelial dystrophy/degeneration, which represents 39% of all corneal transplants performed. However, the global shortage of transplantable donor corneas has restricted the treatment outcomes, hence instigating a need to research for alternative therapies. One such avenue is the CEC regeneration from endothelial progenitors, which have been identified in the peripheral endothelium and the adjacent transition zone. This review examines the evidence supporting the existence of endothelial progenitors in the posterior limbus and summarizes the existing knowledge on the microanatomy of the transitional zone. We give an overview of the isolation and ex vivo propagation of human endothelial progenitors in the transition zone, and their growth and differentiation capacity to the corneal endothelium. Transplanting these bioengineered constructs into in vivo models of corneal endothelial degeneration will prove the efficacy and viability, and the long-term maintenance of functional endothelium. This will develop a novel regenerative therapy for the management of corneal endothelial diseases.

Indexed as

Corneal TransplantationEndothelial CellsCell- and Tissue-Based TherapyCorneaEndothelium, CornealHumansCornea endotheliumCorneal endothelial progenitorsSchwalbe’s line, transitional zone, corneal endothelial cell degeneration

Identifiers

PMID33276809
PMCPMC7716425
OpenAlexW3108414137

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.