Evidence map›Paper›PMID 30643676›Full record

ArticlePeerJ2019

Efficient generation of human primordial germ cell-like cells from pluripotent stem cells in a methylcellulose-based 3D system at large scale.

Xiaoman Wang, Tingting Liao, Cong Wan, Xiaoyu Yang, Jiexiang Zhao, Rui Fu, Zhaokai Yao, Yaping Huang, Yujia Shi, Gang Chang and 6 more

Open access · goldAbstract read
In one paragraph

Article in PeerJ, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

12 citing papers in PubMed, 15 citations in OpenAlex.

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  11. Approaches and Technologies in Male Fertility Preservation.International journal of molecular sciences · 2020
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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

16 authors at 8 institutions in 1 country.

Xiaoman Wang *State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Tingting Liao *Reproductive Medicine Center, Xiangya hospital, Central South University, Changsha, Hunan, China.
Cong WanDepartment of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
Xiaoyu YangState Key Laboratory of Reproductive Medicine, Clinical Center of Reproductive Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Jiexiang ZhaoDepartment of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
Rui FuState Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Zhaokai YaoDepartment of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
Yaping HuangDepartment of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
Yujia ShiDepartment of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
Gang ChangDepartment of Biochemistry and Molecular Biology, Shenzhen University Health Science Center, Shenzhen, Guangdong, China.
Yi ZhengDepartment of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
Fang LuoDepartment of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
Zhaoting LiuDepartment of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
Yu WangState Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Xinliang MaoSchool of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong, China.
Xiao-Yang ZhaoDepartment of Developmental Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong, China.
Southern Medical University · CNChinese Academy of Sciences · CNGuangzhou Regenerative Medicine and Health Guangdong Laboratory · CNInstitute of Zoology · CNNanjing Medical University · CNShenzhen University Health Science Center · CNSouth China University of Technology · CNXiangya Hospital Central South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe mechanisms underlying human germ cell development and infertility remain largely unknown due to bioethical issues and the shortage of experimental materials. Therefore, an effective in vitro induction system of human primordial germ-like cells (hPGCLCs) from human pluripotent stem cells (hPSC) is in high demand. The current strategies used for the generation of hPGCLCs are not only costly but also difficult to perform at a large scale, thereby posing barriers to further research. In this study, we attempted to solve these problems by providing a new 3D culture system for hPGCLC differentiation.

methodsThe efficiency and relative yield of a methylcellulose (MC)-based 3D hPGCLC induction system were first compared with that of a conventional U96 system. Then, we examined the gene expression of germ cell marker genes and the key epigenetic modifications of the EpCAM-/INTEGRINα6-high cells from the 3D MC induction system and the U96 system via quantitative PCR and immunofluorescence. Finally, the reliability of the MC-based 3D hPGCLC induction system was evaluated via the generation of induced pluripotent stem cells (iPSCs) from the testicular cells of one patient with obstructive azoospermia (OA) and followed by the subsequent differentiation of iPSCs into the germ cell lineage.

resultsIn the present study, we demonstrated that the 3D MC induction system combined with low-cell attachment plates facilitated the generation of hPGCLCs at a large scale. We found that the hPGCLCs generated via the MC system shared similar characteristics to that via the U96 system in terms of the gene expression profiles, germ cell-specific markers, epigenetic modification states and cellular states. In addition, hPGCLCs from iPSCs derived from one OA patient were generated with high efficiency via the present 3D MC induction system. DISCUSSION: The in vitro induction of hPGCLCs from human embryonic stem cells (hESCs)/human induced pluripotent stem cells (hiPSCs) has significant implications in exploring the underlying mechanisms of the origin and specification of hPGCs and the epigenetic programming of the human germ line as well as treating male infertility. Here, we developed a simple and efficient 3D induction system to generate hPGCLCs from hESCs/hiPSCs at a large scale, which facilitated the study of human germ cell development and stem cell-based reproductive medicine.

Indexed as

EmbryoidshESCshiPSCsHuman primordial germ-like cellsInduction systemMethylcellulose

Identifiers

PMID30643676
PMCPMC6330037
OpenAlexW2908624835

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.