Evidence map›Paper›PMID 26286619›Full record

ArticleEMBO molecular medicine2015

A novel mechano-enzymatic cleavage mechanism underlies transthyretin amyloidogenesis.

Julien Marcoux, P Patrizia Mangione, Riccardo Porcari, Matteo T Degiacomi, Guglielmo Verona, Graham W Taylor, Sofia Giorgetti, Sara Raimondi, Sarah Sanglier-Cianférani, Justin L P Benesch and 8 more

Open access · goldAbstract read
In one paragraph

Article in EMBO molecular medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing 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

97 citing papers in PubMed, 160 citations in OpenAlex.

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  15. Review
  16. Initiation of transthyretin aggregation at neutral pH by fluid agitation.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  17. Article
  18. RV-PA uncoupling is associated with increased mortality in transthyretin amyloid cardiomyopathy treated with tafamidis.Clinical research in cardiology : official journal of the German Cardiac Society · 2024
    Article
  19. Aggregation of Transthyretin by Fluid Agitation.bioRxiv : the preprint server for biology · 2024
    Article
  20. Review

37 more citing papers are in PubMed but not listed here.

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 at 5 institutions in 3 countries.

Julien MarcouxDepartment of Chemistry, University of Oxford, Oxford, UK Laboratoire de Spectrométrie de Masse BioOrganique (LSMBO), University of Strasbourg UDS, Strasbourg, France.
P Patrizia MangioneWolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London, UK Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Pavia, Italy.
Riccardo PorcariWolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London, UK.
Matteo T DegiacomiDepartment of Chemistry, University of Oxford, Oxford, UK.
Guglielmo VeronaWolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London, UK Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Pavia, Italy.
Graham W TaylorWolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London, UK.
Sofia GiorgettiDepartment of Molecular Medicine, Institute of Biochemistry, University of Pavia, Pavia, Italy.
Sara RaimondiDepartment of Molecular Medicine, Institute of Biochemistry, University of Pavia, Pavia, Italy.
Sarah Sanglier-CianféraniLaboratoire de Spectrométrie de Masse BioOrganique (LSMBO), University of Strasbourg UDS, Strasbourg, France.
Justin L P BeneschDepartment of Chemistry, University of Oxford, Oxford, UK.
Ciro CecconiInstitute of Nanoscience S3, Consiglio Nazionale delle Ricerche, Modena, Italy Department of Physics, Informatics and Mathematics, University of Modena and Reggio Emilia, Modena, Italy.
Mohsin M NaqviDepartment of Physics, Informatics and Mathematics, University of Modena and Reggio Emilia, Modena, Italy.
Julian D GillmoreWolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London, UK.
Philip N HawkinsWolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London, UK.
Monica StoppiniDepartment of Molecular Medicine, Institute of Biochemistry, University of Pavia, Pavia, Italy.
Carol V RobinsonDepartment of Chemistry, University of Oxford, Oxford, UK.
Mark B PepysWolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London, UK.
Vittorio BellottiWolfson Drug Discovery Unit, Centre for Amyloidosis and Acute Phase Proteins, Division of Medicine, University College London, London, UK Department of Molecular Medicine, Institute of Biochemistry, University of Pavia, Pavia, Italy v.bellotti@ucl.ac.uk.
University College London · GBUniversity of Pavia · ITUniversity of Oxford · GBUniversité de Strasbourg · FRUniversity of Modena and Reggio Emilia · IT

Funding

Department of HealthMedical Research Council G7900510Medical Research Council MR/K000187/1
6 · The paper itself

Abstract

The mechanisms underlying transthyretin-related amyloidosis in vivo remain unclear. The abundance of the 49-127 transthyretin fragment in ex vivo deposits suggests that a proteolytic cleavage has a crucial role in destabilizing the tetramer and releasing the highly amyloidogenic 49-127 truncated protomer. Here, we investigate the mechanism of cleavage and release of the 49-127 fragment from the prototypic S52P variant, and we show that the proteolysis/fibrillogenesis pathway is common to several amyloidogenic variants of transthyretin and requires the action of biomechanical forces provided by the shear stress of physiological fluid flow. Crucially, the non-amyloidogenic and protective T119M variant is neither cleaved nor generates fibrils under these conditions. We propose that a mechano-enzymatic mechanism mediates transthyretin amyloid fibrillogenesis in vivo. This may be particularly important in the heart where shear stress is greatest; indeed, the 49-127 transthyretin fragment is particularly abundant in cardiac amyloid. Finally, we show that existing transthyretin stabilizers, including tafamidis, inhibit proteolysis-mediated transthyretin fibrillogenesis with different efficiency in different variants; however, inhibition is complete only when both binding sites are occupied.

Indexed as

PrealbuminAmyloid Neuropathies, FamilialHumansPeptide FragmentsProteolysisPeptide FragmentsPrealbuminamyloidmechano‐enzymatic cleavagetransthyretin

Identifiers

PMID26286619
PMCPMC4604687
OpenAlexW2130902107

What OpenQuestion holds

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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.