Evidence map›Paper›PMID 38700983›Full record

ArticleCell reports2024

Dissecting gene activation and chromatin remodeling dynamics in single human cells undergoing reprogramming.

Jose A Martinez-Sarmiento, Maria Pia Cosma, Melike Lakadamyali

Abstract read
In one paragraph

Article in Cell reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Cell Fusion in Reprogramming and Regeneration.Advances in experimental medicine and biology · 2026
    Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. 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

3 authors.

Jose A Martinez-SarmientoDepartment of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Center for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 08003 Barcelona, Spain; Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain.
Maria Pia CosmaCenter for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, 08003 Barcelona, Spain; Universitat Pompeu Fabra (UPF), 08003 Barcelona, Spain; ICREA, 08010 Barcelona, Spain; Medical Research Institute, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, 510080 Guangzhou, China. Electronic address: pia.cosma@crg.eu.
Melike LakadamyaliDepartment of Physiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell and Developmental Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address: melikel@pennmedicine.upenn.edu.

Funding

Single-cell dissection of chromatin architecture mechanisms connecting pathologic instability and transcriptional silencingU01DA052715 · NIDA · UNIVERSITY OF PENNSYLVANIA · PI JAIN, RAJAN, JOYCE, ERIC F. · 2020 to 2024
$3.1M
Preserving chromatin nano-structure to enhance chondrocyte therapeutic potential for cartilage repairR01AR079224 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI Su Chin Heo, Melike Lakadamyali · 2022 to 2026
$2.0M
Calibration nanotemplates as universal standards for determining protein copy number in super-resolution microscopyR01GM133842 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI LAKADAMYALI, MELIKE · 2019 to 2022
$1.7M
NIAMS NIH HHS R01 AR079224NIDA NIH HHS U01 DA052715NIGMS NIH HHS R01 GM133842
6 · The paper itself

Abstract

During cell fate transitions, cells remodel their transcriptome, chromatin, and epigenome; however, it has been difficult to determine the temporal dynamics and cause-effect relationship between these changes at the single-cell level. Here, we employ the heterokaryon-mediated reprogramming system as a single-cell model to dissect key temporal events during early stages of pluripotency conversion using super-resolution imaging. We reveal that, following heterokaryon formation, the somatic nucleus undergoes global chromatin decompaction and removal of repressive histone modifications H3K9me3 and H3K27me3 without acquisition of active modifications H3K4me3 and H3K9ac. The pluripotency gene OCT4 (POU5F1) shows nascent and mature RNA transcription within the first 24 h after cell fusion without requiring an initial open chromatin configuration at its locus. NANOG, conversely, has significant nascent RNA transcription only at 48 h after cell fusion but, strikingly, exhibits genomic reopening early on. These findings suggest that the temporal relationship between chromatin compaction and gene activation during cellular reprogramming is gene context dependent.

Indexed as

Cellular ReprogrammingChromatin Assembly and DisassemblyHistonesChromatinHumansInduced Pluripotent Stem CellsNanog Homeobox ProteinOctamer Transcription Factor-3Single-Cell AnalysisTranscriptional ActivationChromatinHistonesNanog Homeobox ProteinOctamer Transcription Factor-3cellular reprogrammingchromatinCP: Molecular biologyCP: Stem cell researchNanogOct4pluripotencysingle-molecule FISHsuper-resolution microscopy

Identifiers

PMID38700983
PMCPMC11195307

What OpenQuestion holds

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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.