Evidence map›Paper›PMID 42831021›Full record

ArticleiScience2026

MED26 facilitates Mediator-Pol II complex assembly and promotes nuclear stress body formation during heat stress.

Kexin Li, Kazuki Furugori, Hidefumi Suzuki, Ryota Abe, Shun Sawatsubashi, Nanami Yasui, Yoko Ike, Keiko Horiuchi, Hidehisa Takahashi

Abstract read
In one paragraph

Article in iScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

9 authors.

Kexin LiDepartment of Molecular Biology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
Kazuki FurugoriDepartment of Molecular Biology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
Hidefumi SuzukiDepartment of Molecular Biology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
Ryota AbeDepartment of Neurology and Stroke Medicine, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan.
Shun SawatsubashiResearch and Innovation Liaison Office, Institute for Advanced Medical Sciences, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima, Tokushima 770-8503, Japan.
Nanami YasuiDepartment of Molecular Biology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
Yoko IkeDepartment of Molecular Biology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
Keiko HoriuchiDepartment of Molecular Biology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.
Hidehisa TakahashiDepartment of Molecular Biology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa 236-0004, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cells adapt to environmental stress by reprogramming gene expression. During heat stress, the transcription factor heat shock factor 1 (HSF1) translocates into the nucleus and activates heat shock-responsive loci, including the long non-coding RNA HSATIII, promoting nuclear stress body (nSB) formation. We show that the Mediator complex subunit MED26 enhances HSATIII transcription and nSB formation through a mechanism distinct from its role at heat-shock response (HSR) genes. Under heat stress, MED26-containing Mediator is recruited to HSR genes and nSBs through interactions with HSF1 and MED15. Phosphorylation of the intrinsically disordered region of HSF1 appears to facilitate Mediator recruitment to nSBs. Acute loss of MED26 leads to the dissociation of the Mediator and RNA polymerase II (Pol II) from HSR gene promoters, whereas the Mediator remains bound to HSATIII despite Pol II dissociation. These results suggest that MED26 acts as molecular switch, thereby facilitating Mediator-Pol II complex assembly at nSBs and promoting nSB formation during heat stress.

Indexed as

HSF1MED15MED26Mediatornuclear stress bodies

Identifiers

PMID42831021
PMCPMC13634412

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.