Evidence map›Paper›PMID 42696253›Full record

ArticleGeroScience2026

Microglia-derived extracellular vesicles uncover early alterations of inflammatory signaling in Alzheimer's disease.

Chiara Bianchessi, Maria Serpente, Evelyn Ferri, Giulia Giudici, Marina Arcaro, Vittoria Borracci, Caterina Visconte, Francesca Buccellato, Luca Sacchi, Manuela Pintus and 4 more

Abstract read
PubMed Publisher
In one paragraph

Article in GeroScience, 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

14 authors.

Chiara BianchessiNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Maria SerpenteNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Evelyn FerriFondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Giulia GiudiciNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Marina ArcaroNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Vittoria BorracciNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Caterina VisconteNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Francesca BuccellatoNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Luca SacchiNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Manuela PintusNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Beatrice ArosioFondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Andrea ArighiNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.
Chiara FenoglioNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy. chiara.fenoglio@unimi.it.
Daniela GalimbertiNeurodegenerative Diseases Unit, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, 20122, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Alzheimer's disease (AD) is increasingly recognized as a neurodegenerative disorder associated with chronic low-grade inflammation and age-related immune dysregulation. Microglial-derived extracellular vesicles (MDEVs) are emerging as important mediators of neuroimmune communication and potential biomarkers reflecting pathological processes occurring within the central nervous system (CNS). However, how EV-associated inflammatory signalling changes across different stages of AD remains poorly understood. In this study, we characterized the inflammatory molecular profile of serum-derived MDEVs in 22 AD patients, 19 prodromal AD subjects, and 23 healthy controls (HC). Cytokine concentrations were also evaluated in paired serum and cerebrospinal fluid (CSF) samples to compare vesicle-associated and soluble inflammatory signals across biological compartments. MDEVs were isolated by size exclusion chromatography followed by TMEM119-based immunoenrichment. Cytokine quantification was performed using the Ella Simple Plex automated immunoassay platform. MDEVs from AD patients showed a generalized reduction in both pro- and anti-inflammatory cytokines compared to HC, including IL-1β, TNF-α, IL-2, IFN-γ, IL-6, IL-12p70, IL-10, and IL-4. Notably, several alterations were already detectable at the prodromal stage. In contrast, soluble cytokines in serum and CSF displayed a predominantly pro-inflammatory profile in AD patients, with increased levels of IL-1β, TNF-α, and IL-12p70. No significant correlations were observed between cytokine levels measured in MDEVs and those detected in serum or CSF. Overall, these findings support the presence of a compartment-specific reorganization of inflammatory signalling during AD progression. Early alterations in MDEV inflammatory cargo may reflect disrupted EV-mediated neuroimmune communication and highlight the potential of MDEVs as accessible peripheral biomarkers of neuroinflammatory processes in AD.

Indexed as

Alzheimer's diseaseBiomarkerCytokinesMicroglial-derived extracellular vesiclesNeuroinflammation

Identifiers

PMID42696253

What Socratic 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 Socratic graph.