Evidence map›Paper›PMID 35883163›Full record

ArticleStem cell research & therapy2022

Meiosis resumption in human primordial germ cells from induced pluripotent stem cells by in vitro activation and reconstruction of ovarian nests.

Sheng Yang, Zhen Liu, Shengda Wu, Lang Zou, Yanpei Cao, Hongjia Xu, Jingfeng Huang, Qingyan Tian, Fanggui Wu, Panpan Li and 2 more

Open access · goldAbstract read
In one paragraph

Article in Stem cell research & therapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

16 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
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  6. NAM journal · 2025
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  14. Current progress onFrontiers in cell and developmental biology · 2023
    Review
  15. Review
  16. Germline stem cells in human.Signal transduction and targeted therapy · 2022
    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

12 authors at 3 institutions in 3 countries.

Sheng YangThe Reproduction Medical Center, The Third Affiliated Hospital of Shenzhen University, Shenzhen, 518001, Guangdong, People's Republic of China. tobyys2000@aliyun.com.ORCID 0000-0002-0649-0077
Zhen LiuThe Reproduction Medical Center, The Third Affiliated Hospital of Shenzhen University, Shenzhen, 518001, Guangdong, People's Republic of China.
Shengda WuDepartment of Obstetrics and Gynecology, Shenzhen University General Hospital, Shenzhen, 518053, Guangdong Province, People's Republic of China.
Lang ZouThe Reproduction Medical Center, The Third Affiliated Hospital of Shenzhen University, Shenzhen, 518001, Guangdong, People's Republic of China.
Yanpei CaoDepartment of Obstetrics and Gynecology, Shenzhen University General Hospital, Shenzhen, 518053, Guangdong Province, People's Republic of China.
Hongjia XuDepartment of Obstetrics and Gynecology, Shenzhen University General Hospital, Shenzhen, 518053, Guangdong Province, People's Republic of China.
Jingfeng HuangDepartment of Obstetrics and Gynecology, Shenzhen University General Hospital, Shenzhen, 518053, Guangdong Province, People's Republic of China.
Qingyan TianThe Reproduction Medical Center, The Third Affiliated Hospital of Shenzhen University, Shenzhen, 518001, Guangdong, People's Republic of China.
Fanggui WuThe Reproduction Medical Center, The Third Affiliated Hospital of Shenzhen University, Shenzhen, 518001, Guangdong, People's Republic of China.
Panpan LiThe Reproduction Medical Center, The Third Affiliated Hospital of Shenzhen University, Shenzhen, 518001, Guangdong, People's Republic of China.
Shuping PengNHC Key Laboratory of Carcinogenesis, The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, 410078, People's Republic of China. shuping@csu.edu.cn.
Cijun ShuaiInstitute of Additive Manufacturing, Jiangxi University of Science and Technology, Nanchang, 330013, People's Republic of China. shuai@csu.edu.cn.
Shenzhen University · CNCentral South University · CNMinistry of Education of the People's Republic of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe differentiation of human induced pluripotent stem cells (iPSCs) into oocytes, which involves the transformation from mitosis to meiosis, has been a hotspot of biological research for many years and represents a desirable experimental model and potential strategy for treating infertility. At present, studies have shown that most cells stagnate in the oogonium stage after differentiation into primordial germ cells (PGCs) from human iPSCs.

methodsiPSCs carrying a SYCP3-mkate2 knock-in reporter were generated by the CRISPR/Cas9 strategy to monitor meiosis status during induced differentiation from iPSCs into oocytes. These induced PGCs/oogonia were activated by small molecules from the Wnt signaling pathway and then cocultured with reconstructed human ovarian nests in vivo for further development.

resultsFirst, human PGCs and oogonia were efficiently induced from iPSCs. Second, induced dormant PGCs resumed meiosis and then differentiated into primary oocytes through the in vitro activation of the Wnt signaling pathway. Finally, a new coculture system involving the reconstruction of ovarian nests in vitro could facilitate the differentiation of oocytes.

conclusionsHuman PGCs/oogonia induced from iPSCs can be activated and used to resume meiosis by molecules of the Wnt signaling pathway. The coculture of activated PGCs and reconstruction of ovarian nests facilitated differentiation into primary oocytes and the generation of haploid human oocytes in vivo. These findings established a new strategy for germline competence in primary oocytes and provided a keystone for human gametogenesis in vitro and in vivo.

Indexed as

Induced Pluripotent Stem CellsCell DifferentiationFemaleGerm CellsHumansMeiosisOocytesDifferentiationInduced pluripotent stem cellsMeiosisOocytePrimordial germ cellsWnt signaling pathway

Identifiers

PMID35883163
PMCPMC9327357
OpenAlexW4288069179

What OpenQuestion holds

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LicenceCC BY
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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.