Evidence map›Paper›PMID 34347352›Full record

ArticleCell proliferation2021

A phase I clinical trial of human embryonic stem cell-derived retinal pigment epithelial cells for early-stage Stargardt macular degeneration: 5-years' follow-up.

Shi-Ying Li, Yong Liu, Lei Wang, Fang Wang, Tong-Tao Zhao, Qi-You Li, Hai-Wei Xu, Xiao-Hong Meng, Jie Hao, Qi Zhou and 2 more

Open access · goldAbstract readClinical Trial, Phase I
In one paragraph

Article in Cell proliferation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 5 pooled it
4.1field-weighted citation impact, top 5% 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

41 citing papers in PubMed, 5 syntheses or guidelines pooled it, 73 citations in OpenAlex.

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  13. Global Treatment Approaches Part 1: Neuroprotection and Stem Cell Therapy.Advances in experimental medicine and biology · 2025
    Review
  14. The Programme for Manufacture of hPSC‑Based Products for AMD and PD.Advances in experimental medicine and biology · 2025
    Review
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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

12 authors at 2 institutions in 1 country.

Shi-Ying LiSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.ORCID https://orcid.org/0000-0001-9783-9520
Yong LiuSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.ORCID https://orcid.org/0000-0003-0439-7167
Lei WangState Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Fang WangSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
Tong-Tao ZhaoSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
Qi-You LiSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
Hai-Wei XuSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
Xiao-Hong MengSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
Jie HaoState Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.ORCID https://orcid.org/0000-0002-7739-1850
Qi ZhouState Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Liu WangState Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Zheng-Qin YinSouthwest Hospital/Southwest Eye Hospital, Third Military Medical University (Army Medical University), Chongqing, China.
Army Medical University · CNChinese Academy of Sciences · CN

Funding

Military Key Program BWS13C015National Natural Science Foundation of China 81974138Natural Basic Research Program of China 2013CB967003Natural Basic Research Program of China 2018YFA0107301Strategic Priority Research Program of the Chinese Academy of Sciences XDA01030506
6 · The paper itself

Abstract

objectivesTo evaluate the long-term biosafety and efficacy of transplantation of human embryonic stem cells-derived retinal pigment epithelial (hESC-RPE) cells in early-stage of Stargardt macular degeneration (STGD1). MATERIALS AND

methodsSeven patients participated in this prospective clinical study, where they underwent a single subretinal transplantation of 1 × 10

resultsNone of the patients experienced adverse reactions systemically or locally, except for two who had transiently high intraocular pressure post-operation. Functional assessments demonstrated that all of the seven operated eyes had transiently increased or stable visual function 1-4 months after transplantation. At the last follow-up visit, two of the seven eyes showed visual function loss than the baseline; however, one of them showed a stable visual acuity when compared with the change of fellow eye. Obvious small high reflective foci in the RPE layer were displayed after the transplantation, and maintained until the last visit. Interestingly, three categories of patients who were classified based on autofluorescence, exhibited distinctive patterns of morphological and functional change.

conclusionsSubretinal transplantation of hESC-RPE in early-stage STGD1 is safe and tolerated in the long term. Further investigation is needed for choosing proper subjects according to the multi-model image and function assessments.

Indexed as

AdultCell DifferentiationCell LineEpithelial CellsFemaleFollow-Up StudiesHuman Embryonic Stem CellsHumansMacular DegenerationMaleProspective StudiesRetinal Pigment EpitheliumRetinal PigmentsStargardt DiseaseStem Cell TransplantationVisual AcuityRetinal Pigmentsclinical trialembryonic stem cellhumanmacular degenerationretinal pigment epithelial cells

Identifiers

PMID34347352
PMCPMC8450131
OpenAlexW3189830364

What OpenQuestion holds

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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 OpenQuestion graph.