Evidence mapPaperPMID 41520423Full record

ArticleBiophysical chemistry2026

Changes in the concentration of phosphatidylcholine in lipid bilayers determines the aggregation rate of transthyretin.

Abid Ali, Mikhail Matveyenka, Dmitry Kurouski

Abstract read
In one paragraph

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

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1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Abid AliDepartment of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States.
Mikhail MatveyenkaDepartment of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States.
Dmitry KurouskiDepartment of Biochemistry and Biophysics, Texas A&M University, College Station, TX 77843, United States. Electronic address: dkurouski@tamu.edu.

Funding

Biophysical determination of the underlying cause of α-Syn oligomer toxicityR35GM142869 · NIGMS · TEXAS A&M AGRILIFE RESEARCH · PI KUROUSKI, DMITRY · 2021 to 2025
$1.6M
NIGMS NIH HHS R35 GM142869
6 · The paper itself

Abstract

Transthyretin (TTR) is a tetrameric transporter of retinol and thyroxine that aggregates in the central and peripheral nervous system upon a severe pathology known as transthyretin amyloidosis. Although small molecular weight drugs can stabilize TTR preventing its aggregation, molecular mechanisms of transthyretin amyloidosis remain poorly understood. Accumulating evidence indicates that lipids can alter TTR stability by facilitating protein aggregation into toxic oligomers and fibrils. Consequently, pathological changes in the lipid composition of plasma membranes can be responsible for the onset and progression of transthyretin amyloidosis. In this study, we investigated the role of concentration-dependent changes in phosphatidylcholine (PC), one of the most abundant phospholipids in the plasma membrane, on the rate of TTR aggregation. For this, TTR was exposed to large unilamellar vesicles (LUVs) composed of 30%, 35%, and 40% PC. We found that a decrease in the concentration of PC from 40% to 35% drastically accelerated TTR aggregation. We also observed an increase in the cytotoxicity of TTR aggregates formed in the presence of 35% PC compared to TTR fibrils grown in the presence of LUVs with 40% PC. These results indicate that changes in the concentration of PC in the plasma membrane could trigger amyloid formation that leads to transthyretin amyloidosis.

Indexed as

Lipid BilayersPhosphatidylcholinesPrealbuminHumansProtein AggregatesLipid BilayersPhosphatidylcholinesPrealbuminProtein AggregatesTTR protein, humanFibrilsPhospholipidsROSTransthyretin

Identifiers

PMID41520423
PMCPMC13310245

What Socratic 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 Socratic graph.