Evidence map›Paper›PMID 42409769›Full record

ArticleCell discovery2026

PRC1 nanoglobules organize Hox chromatin during Drosophila embryogenesis.

Thierry Cheutin, Nazli Akilli, Marco Di Stefano, Paul-Swann Puel, Lauriane Fritsch, Daniel Jost, Giacomo Cavalli

Abstract read
In one paragraph

Article in Cell discovery, 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. 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

7 authors.

Thierry CheutinInstitute of Human Genetics, University of Montpellier, CNRS, Montpellier, France. thierry.cheutin@igh.cnrs.fr.ORCID http://orcid.org/0000-0002-7051-6219
Nazli AkilliInstitute of Human Genetics, University of Montpellier, CNRS, Montpellier, France.
Marco Di StefanoInstitute of Human Genetics, University of Montpellier, CNRS, Montpellier, France.ORCID http://orcid.org/0000-0001-6195-4754
Paul-Swann PuelLaboratoire de Biologie et Modélisation de la Cellule, École Normale Supérieure de Lyon, CNRS, UMR5239, Inserm U1293, Université Claude Bernard Lyon 1, Lyon, France.
Lauriane FritschInstitute of Human Genetics, University of Montpellier, CNRS, Montpellier, France.
Daniel JostLaboratoire de Biologie et Modélisation de la Cellule, École Normale Supérieure de Lyon, CNRS, UMR5239, Inserm U1293, Université Claude Bernard Lyon 1, Lyon, France.
Giacomo CavalliInstitute of Human Genetics, University of Montpellier, CNRS, Montpellier, France. giacomo.cavalli@igh.cnrs.fr.ORCID http://orcid.org/0000-0003-3709-3469

Funding

Agence Nationale de la Recherche (French National Research Agency) ANR-21-CE13-0037Agence Nationale de la Recherche (French National Research Agency) ANR-21-CE45-0011EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council) Advanced Grant 3DEpiEC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council) WaddingtonMemory
6 · The paper itself

Abstract

Polycomb group (PcG) proteins are required to maintain the silencing of key developmental genes during development. In Drosophila, they bind to discrete genomic elements named Polycomb response elements (PREs). PcG proteins form two classes of complexes. Polycomb repressive complex 2 (PRC2) deposits H3K27me3, a histone mark that covers large chromatin domains. The canonical PRC1 complex can bind to PREs as well as to the H3K27me3 mark. Inside the cell nucleus, when analyzed by confocal microscopy, the PcG subunits and associated chromatin are localized to polycomb foci. However, the lack of spatial resolution of this method impedes the precise localization of the polycomb machinery relative to its target chromatin. To resolve this long-standing problem, we analyzed Drosophila embryos by superresolution stimulated emission depletion microscopy. We observed that polycomb foci associated with Hox gene clusters are composed of multiple dynamic PRC1 substructures, which we named "PRC1 nanoglobules". PREs are more associated with these nanoglobules than the surrounding H3K27me3 chromatin. By imaging the entire Bithorax complex (BX-C) locus, we identified chromatin substructures that partially overlap with PRC1 nanoglobules, indicating that they form different assemblies. Furthermore, polymer simulations suggest that interactions between PREs and PRC1 nanoglobules can drive the compaction and positioning of the BX-C domain. Taken together, these data suggest that by establishing the three-dimensional architecture of their target loci, PRC1 nanoglobules are key molecular assemblies that maintain polycomb-dependent silencing.

Identifiers

PMID42409769
PMCPMC13338358

What Socratic 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 Socratic graph.