Evidence map›Paper›PMID 41874152›Full record

ArticleMethods and protocols2026

Generation of Primordial Germ Cell-like Cells from hESCs Using BMP4 and hAFSC-Conditioned Medium.

Borislav Arabadjiev, Ivelina Vassileva, Georgi Nikolaev, Roumen Pankov

Abstract read
In one paragraph

Article in Methods and protocols, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. Article
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

4 authors.

Borislav ArabadjievFaculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria.ORCID 0000-0002-5878-6478
Ivelina VassilevaFaculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria.
Georgi NikolaevFaculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria.ORCID 0000-0003-0584-415X
Roumen PankovFaculty of Biology, Sofia University St. Kliment Ohridski, 1164 Sofia, Bulgaria.ORCID 0000-0002-3157-3659

Funding

European Union-NextGenerationEU, through the National Recovery and Resilience Plan of the Republic of Bulgaria. SUMMIT BG-RRP-2.004-0008-C01
6 · The paper itself

Abstract

The differentiation of human embryonic stem cells (hESCs) into primordial germ cell-like cells (PGC-LCs) provides a robust in vitro model to study human germline specification. Here, we present a simple, reproducible, and cost-effective protocol for generating DEAD-box helicase 4 (DDX4)/VASA and Deleted in Azoospermia-Like (DAZL)-positive PGC-LCs from hESCs using a combination of bone morphogenetic protein 4 (BMP4) and conditioned medium (CM) derived from Stage-Specific Embryonic Antigen-4 (SSEA4)-positive human amniotic fluid stem cells (hAFSC-4). Importantly, unlike conventional protocols that rely on embryoid body formation, our method employs adherent cultures for germ cell differentiation. This approach enhances reproducibility by avoiding the spontaneous and stochastic variability inherent to embryoid body formation. This protocol provides a reproducible and physiologically relevant platform for studying human germ cell development in vitro.

Indexed as

bone morphogenetic protein 4 (BMP4)conditioned mediumgermline differentiationhuman amniotic fluid stem cells (hAFSC)human embryonic stem cellsprimordial germ cell-like cells (PGC-LCs)

Identifiers

PMID41874152
PMCPMC13010706

What OpenQuestion holds

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Registered trials

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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.