Evidence map›Paper›PMID 26811497›Full record

ArticleOncotarget2016

Targeting glucosylceramide synthase upregulation reverts sorafenib resistance in experimental hepatocellular carcinoma.

Milica Stefanovic, Anna Tutusaus, Guillermo A Martinez-Nieto, Cristina Bárcena, Estefania de Gregorio, Catia Moutinho, Elisabet Barbero-Camps, Alberto Villanueva, Anna Colell, Montserrat Marí and 3 more

Open access · diamondAbstract read
In one paragraph

Article in Oncotarget, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Central Roles of Glucosylceramide in Driving Cancer Pathogenesis.International journal of molecular sciences · 2025
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  13. Update on Glycosphingolipids Abundance in Hepatocellular Carcinoma.International journal of molecular sciences · 2022
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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

13 authors at 5 institutions in 2 countries.

Milica StefanovicDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Anna TutusausDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Guillermo A Martinez-NietoDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Cristina BárcenaDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Estefania de GregorioDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Catia MoutinhoCancer Epigenetics and Biology Program (PEBC), Bellvitge Biomedical Research Institute, Barcelona, Catalonia, Spain.
Elisabet Barbero-CampsDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Alberto VillanuevaTranslational Research Laboratory, Catalan Institute of Oncology - Bellvitge Biomedical Research Institute, Barcelona, Catalonia, Spain.
Anna ColellDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Montserrat MaríDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Carmen García-RuizDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Jose C Fernandez-ChecaDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Albert MoralesDepartment of Cell Death and Proliferation, IIBB-CSIC, IDIBAPS, Barcelona, Catalonia, Spain.
Institut d'Investigacions Biomèdiques de Barcelona · ESConsorci Institut D'Investigacions Biomediques August Pi I Sunyer · ESCentro de Investigación Biomédica en Red · ESInstitut Català d'Oncologia · ESInstitut d'Investigació Biomédica de Bellvitge · ES

Funding

The Southernearch Center for ALPD and CirrhosisP50AA011999 · NIAAA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI ANNA S. GUKOVSKAYA · 1999 to 2026
$45.8M
NIAAA NIH HHS P50 AA011999
6 · The paper itself

Abstract

Evasive mechanisms triggered by the tyrosine kinase inhibitor sorafenib reduce its efficacy in hepatocellular carcinoma (HCC) treatment. Drug-resistant cancer cells frequently exhibit sphingolipid dysregulation, reducing chemotherapeutic cytotoxicity via the induction of ceramide-degrading enzymes. However, the role of ceramide in sorafenib therapy and resistance in HCC has not been clearly established. Our data reveals that ceramide-modifying enzymes, particularly glucosylceramide synthase (GCS), are upregulated during sorafenib treatment in hepatoma cells (HepG2 and Hep3B), and more importantly, in sorafenib-resistant cell lines. GCS silencing or pharmacological GCS inhibition sensitized hepatoma cells to sorafenib exposure. GCS inhibition, combined with sorafenib, triggered cytochrome c release and ATP depletion in sorafenib-treated hepatoma cells, leading to mitochondrial cell death after energetic collapse. Conversely, genetic GCS overexpression increased sorafenib resistance. Of interest, GCS inhibition improved sorafenib effectiveness in a xenograft mouse model, recovering drug sensitivity of sorafenib-resistant tumors in mice. In conclusion, our results reveal GCS induction as a mechanism of sorafenib resistance, suggesting that GCS targeting may be a novel strategy to increase sorafenib efficacy in HCC management, and point to target the mitochondria as the subcellular location where sorafenib therapy could be potentiated.

Indexed as

AnimalsApoptosisBlotting, WesternCarcinoma, HepatocellularCell ProliferationCeramidesDrug Resistance, NeoplasmFatty Acids, MonounsaturatedGene Expression Regulation, EnzymologicGene Expression Regulation, NeoplasticGlucosyltransferasesHumansImmunoenzyme TechniquesImmunosuppressive AgentsLiver Neoplasms, ExperimentalMaleceramide glucosyltransferaseCeramidesFatty Acids, MonounsaturatedGlucosyltransferasesImmunosuppressive AgentsNiacinamidePhenylurea CompoundsProtein Kinase InhibitorsRNA, MessengerSorafenibthermozymocidinceramidechemotherapyliver cancermitochondriamouse model

Identifiers

PMID26811497
PMCPMC4884990
OpenAlexW2265704217

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.