Evidence map›Paper›PMID 41708776›Full record

ArticleCell death and differentiation2026

RAB1A is a novel vulnerability in uveal melanoma revealed by dual inhibition of MNK1/2 and mTOR.

Raúl E Flores-González, Christophe Goncalves, Noah Wirasinghe, Veronique Gaudreault, Jesus M Noda Ferro, Kelly Coutant, Andrew Mitchell, Theodore Papadopoulos, Yuen Yi Cho, Elizabeth Guettler and 8 more

Abstract read
In one paragraph

Article in Cell death and differentiation, 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

18 authors.

Raúl E Flores-GonzálezLady Davis Institute, McGill University, Montréal, QC, Canada.ORCID 0009-0001-9745-680X
Christophe GoncalvesLady Davis Institute, McGill University, Montréal, QC, Canada.
Noah WirasingheLady Davis Institute, McGill University, Montréal, QC, Canada.
Veronique GaudreaultCentre de recherche du CHUS, Université Sherbrooke, Sherbrooke, QC, Canada.ORCID 0009-0008-4798-4541
Jesus M Noda FerroCentre de recherche du CHUS, Université Sherbrooke, Sherbrooke, QC, Canada.
Kelly CoutantCentre de Recherche du CHU de Québec-Université Laval, Québec, QC, Canada.
Andrew MitchellCentre de Recherche du CHU de Québec-Université Laval, Québec, QC, Canada.ORCID 0000-0002-2630-4788
Theodore PapadopoulosLady Davis Institute, McGill University, Montréal, QC, Canada.ORCID 0009-0005-3004-5298
Yuen Yi ChoLady Davis Institute, McGill University, Montréal, QC, Canada.ORCID 0009-0002-5881-4325
Elizabeth GuettlerLady Davis Institute, McGill University, Montréal, QC, Canada.ORCID 0000-0002-0176-9407
Daniel R González-MorenoLady Davis Institute, McGill University, Montréal, QC, Canada.
Samuel PrestonLady Davis Institute, McGill University, Montréal, QC, Canada.ORCID 0000-0002-2618-8326
Feiyang CaiLady Davis Institute, McGill University, Montréal, QC, Canada.ORCID 0000-0002-9977-4190
Natascha GagnonLady Davis Institute, McGill University, Montréal, QC, Canada.
Steve JeanCentre de recherche du CHUS, Université Sherbrooke, Sherbrooke, QC, Canada.ORCID 0000-0001-6881-5781
Solange LandrevilleCentre de Recherche du CHU de Québec-Université Laval, Québec, QC, Canada. Solange.Landreville@fmed.ulaval.ca.ORCID 0000-0002-9164-0657
Wilson H MillerLady Davis Institute, McGill University, Montréal, QC, Canada. wilson.miller@mcgill.ca.ORCID 0000-0002-7408-1574
Sonia V Del RincónLady Davis Institute, McGill University, Montréal, QC, Canada. soniavictoria.delrincon@mcgill.ca.ORCID 0000-0002-6350-0227

Funding

Gouvernement du Canada | Instituts de Recherche en Santé du Canada | CIHR Skin Research Training Centre (Skin Research Training Centre) PJT-178194Gouvernement du Canada | Instituts de Recherche en Santé du Canada | CIHR Skin Research Training Centre (Skin Research Training Centre) PJT-183934Gouvernement du Canada | Instituts de Recherche en Santé du Canada | CIHR Skin Research Training Centre (Skin Research Training Centre) PJT-518272
6 · The paper itself

Abstract

Uveal melanoma (UM) is an eye cancer that is fatal upon metastasis to the liver. Most treatments trialed in UM fail to provide therapeutic benefit; thus, there is an urgent need for novel treatment strategies. The MAPK and PI3K signaling pathways, key molecular drivers found to be hyper-activated in UM, converge on the MNK1/2-eIF4E and mTORC1/2-4EBP axes. Here, we demonstrate that the pharmacologic inhibition of MNK1/2 in combination with an mTOR inhibitor impairs clonogenic outgrowth and UM cell invasion. Using proteomic analyses, we reveal that combined MNK1/2 and mTOR inhibition disrupts ER-to-Golgi protein vesicle trafficking mainly due to downregulated RAB1A expression, a master regulator of intracellular protein transport. We further uncover that the knockdown of RAB1A blocks liver metastasis, a result that is recapitulated by combined pharmacologic inhibition of MNK1/2 and mTOR. Finally, we show that RAB1A expression reshapes the surfaceome by increasing the abundance of plasma membrane proteins associated with poor overall survival in UM, highlighting its potential as a biomarker. This study identifies protein vesicle transport as an unrecognized vulnerability in UM and supports a mechanistic rationale for targeting MNK1/2 and mTOR in metastatic UM.

Indexed as

Intracellular Signaling Peptides and ProteinsMelanomaMTOR InhibitorsProtein Serine-Threonine Kinasesrab1 GTP-Binding ProteinsTOR Serine-Threonine KinasesUveal NeoplasmsAnimalsCell Line, TumorHumansSignal TransductionUveal MelanomaIntracellular Signaling Peptides and ProteinsMKNK1 protein, humanMTOR InhibitorsMTOR protein, humanProtein Serine-Threonine KinasesRAB1A protein, humanrab1 GTP-Binding ProteinsTOR Serine-Threonine Kinases

Identifiers

PMID41708776
PMCPMC13545286

What OpenQuestion holds

Textmetadata
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.