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How RNA molecules influence the development of aggressive leukemia (opens in a new tab)

medicalxpress.com · 2026-10-14

Short answerEvidenceSource

Short answer

Mixed

Mixed.

The claims we could check match the study, but some claims were not covered by the evidence reviewed.

  • 2 supported
  • 2 not covered

Checked against the study summary. The full text wasn't available, so some details couldn't be settled either way.

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1
2

NewsLink checks it

Mixed

Every claim we could check holds up. Two of four claims match the study. This overall rating is based only on the claims we could check. Two claims the study doesn't address.

  • 2 supported
  • 2 not covered
Open claim evidence
3
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Evidence layer

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Each claim gets a verdict. Expand it to see the evidence directly below.

4 claims in this story

Showing all 4 claimsChoose a verdict to focus the list.

Claim 1 of 4Not coveredThe article says Gas5 was highly expressed in AML cells, co-localized with NUP98::KDM5A in condensates, and proved important for leukemia-cell proliferation; when Gas5 was downregulated with CRISPRi, gene activity changed substantially, including genes involved in differentiation and programmed cell death.View evidenceHide evidence

Why this verdict

Most of the biological content is supported at abstract level: Gas5 was highly expressed, co-localized with NUP98::KDM5A condensates, was reported as essential for AML-cell proliferation, and affected expression dynamics of differentiation/apoptosis-associated genes. However, the story adds details not available in the abstract-level profile, including CRISPRi as the specific downregulation method and that gene activity changed 'substantially.' Those methodological and magnitude details require deeper evidence than the supplied abstract profile.

1

Study evidence

Bicon-seq applied to NUP98::KDM5A-driven leukemia cells revealed a set of highly conserved long non-coding RNAs associated with NUP98::KDM5A onco-condensates.

“In leukemia cells driven by the NUP98::KDM5A fusion oncoprotein, bicon-seq revealed highly conserved long non-coding RNAs (lncRNAs) that are associated with NUP98::KDM5A onco-condensates.”
2

Study evidence

The lncRNA Gas5 was highly expressed in NUP98::KDM5A onco-condensates and reported as essential for proliferation of NUP98::KDM5A-driven AML cells.

“Among them, the lncRNA Gas5 was highly expressed and essential for the proliferation of AML cells.”
Claim 2 of 4Not coveredThe study was published in The EMBO Journal.View evidenceHide evidence

Why this verdict

The supplied paper profile includes a DOI and abstract-derived scientific content, but it does not verify the journal name. The claim that the study was published in The EMBO Journal cannot be checked from the supplied abstract-level profile.

Claim 3 of 4SupportedResearchers at the University of Veterinary Medicine Vienna, with collaborators at CeMM and St. Anna Children's Cancer Research, developed a new analytical method called bicon-seq to reveal which RNA molecules are involved in cancer-promoting cellular structures.View evidenceHide evidence

Why this verdict

The paper profile supports that the authors introduce and validate bicon-seq as a method to globally profile condensate-associated RNAs from cellular samples, and that it was applied to NUP98::KDM5A onco-condensates in leukemia cells. The specific institutional affiliations are not contained in the abstract-level profile, but the scientific claim about the method and its purpose is supported.

1

Study evidence

Bicon-seq accurately quantifies changes in RNA solubility induced by experimental perturbation of cytoplasmic RNA-containing condensates, and these measured changes correlate with published condensate RNA enrichment patterns.

“Here, we use bicon-seq (biotinylated-isoxazole-mediated precipitation of condensome and RNA sequencing) to globally profile condensate-associated RNAs from cellular samples.”
2

Study evidence

Bicon-seq applied to NUP98::KDM5A-driven leukemia cells revealed a set of highly conserved long non-coding RNAs associated with NUP98::KDM5A onco-condensates.

“In leukemia cells driven by the NUP98::KDM5A fusion oncoprotein, bicon-seq revealed highly conserved long non-coding RNAs (lncRNAs) that are associated with NUP98::KDM5A onco-condensates.”
Claim 4 of 4SupportedUsing this method, the team identified the RNA molecule Gas5 as an important regulator of NUP98::KDM5A oncogenic condensates in aggressive forms of acute myeloid leukemia.View evidenceHide evidence

Why this verdict

The abstract-level profile supports that bicon-seq identified conserved lncRNAs associated with NUP98::KDM5A onco-condensates, highlighted Gas5, and reports Gas5 as essential for AML-cell proliferation and as modulating NUP98::KDM5A chromatin binding and differentiation/apoptosis gene-expression dynamics. Calling Gas5 an important regulator is consistent with the paper profile, although detailed strength, effect sizes, and generalizability are not available at abstract depth.

1

Study evidence

Bicon-seq applied to NUP98::KDM5A-driven leukemia cells revealed a set of highly conserved long non-coding RNAs associated with NUP98::KDM5A onco-condensates.

“In leukemia cells driven by the NUP98::KDM5A fusion oncoprotein, bicon-seq revealed highly conserved long non-coding RNAs (lncRNAs) that are associated with NUP98::KDM5A onco-condensates.”
2

Study evidence

The lncRNA Gas5 was highly expressed in NUP98::KDM5A onco-condensates and reported as essential for proliferation of NUP98::KDM5A-driven AML cells.

“Among them, the lncRNA Gas5 was highly expressed and essential for the proliferation of AML cells.”
Then look for missing context

Context layer

What the story carried across

Nothing material from the study was dropped.

4 things the story did carry across
  • Bicon-seq is introduced and validated as a method combining biotinylated-isoxazole condensome precipitation with RNA-seq to globally profile condensate-associated RNAs.
  • Bicon-seq was applied to NUP98::KDM5A-driven leukemia/AML cells and identified conserved lncRNAs associated with NUP98::KDM5A onco-condensates, with Gas5 highlighted.
  • Gas5 is reported as highly expressed and essential or required for proliferation of NUP98::KDM5A-driven AML cells.
  • Gas5 co-localizes with NUP98::KDM5A condensates and modulates NUP98::KDM5A chromatin binding and differentiation/apoptosis-associated gene-expression dynamics.
Then read the study layer

Study layer

Study at a glance

Scan the study first. Expand only the parts you want to inspect.

Pieces of work

4

Evidence read

study summary

Lead result

in vitro

1Lead resultin vitroIntroduce and validate bicon-seq (biotinylated-isoxazole-mediated precipitation of condensome + RNA-seq) as an approach to globally profile condensate-associated RNAs from cellular samples, including showing it quantitatively tracks perturbation-induced changes in RNA solubility consistent with known condensate RNA enrichment.bicon-seq development and validation (in vitro cellular samples)Expand

In plain English

The paper introduces bicon-seq, a method that couples biotinylated-isoxazole-mediated precipitation of condensates (condensome) with RNA sequencing to globally profile condensate-associated RNAs from cellular samples. The authors validate the approach by experimentally perturbing cytoplasmic RNA-containing condensates and report that bicon-seq quantitatively tracks perturbation-induced changes in RNA solubility that correlate with previously published RNA enrichment in these structures.

Key findings

  • Bicon-seq accurately quantifies changes in RNA solubility induced by experimental perturbation of cytoplasmic RNA-containing condensates, and these measured changes correlate with published condensate RNA enrichment patterns.
“Here, we use bicon-seq (biotinylated-isoxazole-mediated precipitation of condensome and RNA sequencing) to globally profile condensate-associated RNAs from cellular samples.”
What this piece can’t prove
  • No information in abstract about the range of cell types/condensate types tested or limits of generalizability.

2 further details could not be confirmed from the summary.

2in vitroApply bicon-seq to NUP98::KDM5A-driven leukemia cells to identify conserved lncRNAs associated with NUP98::KDM5A onco-condensates, highlighting Gas5 as prominent.bicon-seq profiling in NUP98::KDM5A AML cellsExpand

In plain English

The authors applied bicon-seq (biotinylated-isoxazole precipitation of condensome followed by RNA-seq) to leukemia/AML cells driven by the NUP98::KDM5A fusion to profile condensate-associated RNAs. The assay identified a set of highly conserved long non-coding RNAs enriched in NUP98::KDM5A onco‑condensates; among these, the lncRNA Gas5 was highly expressed, required for AML cell proliferation, co-localized with NUP98::KDM5A condensates, and influenced NUP98::KDM5A chromatin binding and the expression dynamics of differentiation/apoptosis‑associated genes.

Key findings

  • Bicon-seq applied to NUP98::KDM5A-driven leukemia cells revealed a set of highly conserved long non-coding RNAs associated with NUP98::KDM5A onco-condensates.
  • The lncRNA Gas5 was highly expressed among the condensate-associated RNAs identified in NUP98::KDM5A AML cells.
“In leukemia cells driven by the NUP98::KDM5A fusion oncoprotein, bicon-seq revealed highly conserved long non-coding RNAs (lncRNAs) that are associated with NUP98::KDM5A onco-condensates.”
What this piece can’t prove

3 further details could not be confirmed from the summary.

3in vitroDemonstrate that the lncRNA Gas5 is essential for proliferation of NUP98::KDM5A-driven AML cells.lncRNA loss-of-function perturbation; cellular proliferation/viability assaysExpand

In plain English

Using bicon-seq profiling in NUP98::KDM5A-driven AML cells, the authors identified conserved lncRNAs enriched in onco-condensates and report that the lncRNA Gas5 is highly expressed and required for proliferation of these AML cells; Gas5 co-localizes with NUP98::KDM5A in condensates and alters NUP98::KDM5A chromatin binding and expression dynamics of differentiation/apoptosis-related genes.

Key findings

  • The lncRNA Gas5 was highly expressed in NUP98::KDM5A onco-condensates and reported as essential for proliferation of NUP98::KDM5A-driven AML cells.
“Among them, the lncRNA Gas5 was highly expressed and essential for the proliferation of AML cells.”
What this piece can’t prove
  • Unclear whether functional dependency was validated with rescue or multiple independent perturbation modalities.

2 further details could not be confirmed from the summary.

4in vitroEstablish a mechanistic model in which Gas5 co-localizes with NUP98::KDM5A condensates and modulates NUP98::KDM5A chromatin binding and expression dynamics of differentiation/apoptosis-associated genes in AML cells.in vitroExpand

In plain English

The abstract reports that the lncRNA Gas5 co-localizes with NUP98::KDM5A condensates in AML cells and modulates NUP98::KDM5A chromatin binding and the expression dynamics of differentiation- and apoptosis-associated genes, supporting a mechanistic model in which Gas5 regulates NUP98::KDM5A-driven transcription.

Key findings

  • Gas5 co-localizes with NUP98::KDM5A condensates in AML cells.
  • Gas5 modulates NUP98::KDM5A chromatin binding.
“Mechanistically, Gas5 co-localized with NUP98::KDM5A in condensates and modulated NUP98::KDM5A chromatin binding and the expression dynamics of differentiation/apoptosis-associated genes in AML cells.”
What this piece can’t prove
  • Causal interpretation (that Gas5 mechanistically regulates chromatin binding and transcription) is implied by the abstract but specific perturbation methods and controls are not described.

2 further details could not be confirmed from the summary.

Finally, the search trail

Method layer

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Open the paper in Tessa

Uncovering essential RNA components of fusion oncoprotein condensates using bicon-seq

The EMBO Journal · 2026

Source record (opens in a new tab)

Why this one

Near certain

NewsLink found the paper. Tessa is where you inspect it deeply.

Papers considered

The selected paper, plus nearby candidates.

Crossref, PubMed · 16 candidate papers

Selected

Uncovering essential RNA components of fusion oncoprotein condensates using bicon-seq

The EMBO Journal · 2026 · Crossref

Source (opens in a new tab)
Candidate

Reviewer #1 (Public review): Preferential formation of NUP98-KDM5A condensates at specific H3K4me3-rich loci drives leukemogenic gene expression

2026 · Crossref

Source (opens in a new tab)
Candidate

eLife Assessment: Preferential formation of NUP98-KDM5A condensates at specific H3K4me3-rich loci drives leukemogenic gene expression

2026 · Crossref

Source (opens in a new tab)

And 10 more candidates considered.