Evidence map›Paper›PMID 33605536›Full record

ArticleMolecular oncology2021

Regulation of MRE11A by UBQLN4 leads to cisplatin resistance in patients with esophageal squamous cell carcinoma.

Tomohiro Murakami, Yoshiaki Shoji, Tomohiko Nishi, Shu-Ching Chang, Ron D Jachimowicz, Sojun Hoshimoto, Shigeshi Ono, Yosef Shiloh, Hiroya Takeuchi, Yuko Kitagawa and 2 more

Open access · goldAbstract read
In one paragraph

Article in Molecular oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.2field-weighted citation impact, top 5% of its field
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

16 citing papers in PubMed, 21 citations in OpenAlex.

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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

12 authors at 6 institutions in 4 countries.

Tomohiro MurakamiDepartment of Translational Molecular Medicine, Division of Molecular Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA.
Yoshiaki ShojiDepartment of Translational Molecular Medicine, Division of Molecular Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA.
Tomohiko NishiDepartment of Translational Molecular Medicine, Division of Molecular Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA.
Shu-Ching ChangMedical Data Research Center Providence Health and Services at Providence Saint Joseph's Health, Portland, OR, USA.
Ron D JachimowiczClinic I of Internal Medicine, University Hospital Cologne, Germany.
Sojun HoshimotoDepartment of Translational Molecular Medicine, Division of Molecular Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA.
Shigeshi OnoDepartment of Translational Molecular Medicine, Division of Molecular Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA.
Yosef ShilohDavid and Inez Myers Laboratory for Cancer Genetics, Sackler School of Medicine, Tel Aviv University, Israel.
Hiroya TakeuchiDepartment of Surgery, Hamamatsu University School of Medicine, Japan.
Yuko KitagawaDepartment of Surgery, Keio University School of Medicine, Shinjuku-ku, Japan.
Dave S B HoonDepartment of Translational Molecular Medicine, Division of Molecular Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA.ORCID 0000-0003-1915-3683
Matias A BustosDepartment of Translational Molecular Medicine, Division of Molecular Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA.ORCID 0000-0001-9625-1127
Keio University · JPHamamatsu University School of Medicine · JPSaint John's Health Center · USProvidence Health & Services · USTel Aviv University · ILUniversity of Cologne · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Resistance to standard cisplatin-based chemotherapies leads to worse survival outcomes for patients with esophageal squamous cell carcinoma (ESCC). Therefore, there is an urgent need to understand the aberrant mechanisms driving resistance in ESCC tumors. We hypothesized that ubiquilin-4 (UBQLN4), a protein that targets ubiquitinated proteins to the proteasome, regulates the expression of Meiotic Recombination 11 Homolog A (MRE11A), a critical component of the MRN complex and DNA damage repair pathways. Initially, immunohistochemistry analysis was conducted in specimens from patients with ESCC (n = 120). In endoscopic core ESCC biopsies taken from 61 patients who underwent neoadjuvant chemotherapy (NAC) (5-fluorouracil and cisplatin), low MRE11A and high UBQLN4 protein levels were associated with reduced pathological response to NAC (P < 0.001 and P < 0.001, respectively). Multivariable analysis of surgically resected ESCC tissues from 59 patients revealed low MRE11A and high UBLQN4 expression as independent factors that can predict shorter overall survival [P = 0.01, hazard ratio (HR) = 5.11, 95% confidence interval (CI), 1.45-18.03; P = 0.02, HR = 3.74, 95% CI, 1.19-11.76, respectively]. Suppression of MRE11A expression was associated with cisplatin resistance in ESCC cell lines. Additionally, MRE11A was found to be ubiquitinated after cisplatin treatment. We observed an amplification of UBQLN4 gene copy numbers and an increase in UBQLN4 protein levels in ESCC tissues. Binding of UBQLN4 to ubiquitinated-MRE11A increased MRE11A degradation, thereby regulating MRE11A protein levels following DNA damage and promoting cisplatin resistance. In summary, MRE11A and UBQLN4 protein levels can serve as predictors for NAC response and as prognostic markers in ESCC patients.

Indexed as

Drug Resistance, NeoplasmCarrier ProteinsCell Line, TumorCisplatinEsophageal NeoplasmsEsophageal Squamous Cell CarcinomaFemaleHumansJapanMaleMiddle AgedMRE11 Homologue ProteinNeoadjuvant TherapyNuclear ProteinsPrognosisCarrier ProteinsCisplatinMRE11 Homologue ProteinMRE11 protein, humanNuclear ProteinsUBQLN4 protein, humanchemoresistanceesophageal cancerMRE11neoadjuvant chemotherapyubiquilin-4

Identifiers

PMID33605536
PMCPMC8024730
OpenAlexW3133033797

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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.