Cited by 56Amyotrophic Lateral Sclerosis ResearchNeuroinflammation and Neurodegeneration MechanismsAlzheimer's disease research and treatments

11 C‐PK11195 PET–based molecular study of microglia activation in SOD1 amyotrophic lateral sclerosis

Open access
Tondo, Giacomo, Iaccarino, Leonardo, Cerami, Chiara, Vanoli, Giovanna Emilia, Presotto, Luca, Masiello, Valeria, Coliva, Angela, Salvi, Fabrizio +4 more·2020·Annals of Clinical and Translational Neurology

Abstract

Objective: Neuroinflammation is considered a key driver for neurodegeneration in several neurological diseases, including amyotrophic lateral sclerosis (ALS). SOD1 mutations cause about 20% of familial ALS, and related pathology might generate microglial activation triggering neurodegeneration. 11 C‐PK11195 is the prototypical and most validated PET radiotracer, targeting the 18‐kDa translocator protein which is overexpressed in activated microglia. In this study, we investigated microglia activation in asymptomatic (ASYM) and symptomatic (SYM) SOD1 mutated carriers, by using 11 C‐PK11195 and PET imaging. Methods: We included 20 subjects: 4 ASYM‐carriers, neurologically normal, 6 SYM‐carriers with probable ALS, and 10 healthy controls. A receptor parametric mapping procedure estimated 11 C‐PK11195 binding potentials and voxel‐wise statistical comparisons were performed at group and single‐subject levels. Results: Both the SYM‐ and ASYM‐carriers showed significant microglia activation in cortical and subcortical structures, with variable patterns at individual level. Clusters of activation were present in occipital and temporal regions, cerebellum, thalamus, and medulla oblongata. Notably, SYM‐carriers showed microglia activation also in supplementary and primary motor cortices and in the somatosensory regions. Interpretation: In vivo neuroinflammation occurred in all SOD1 mutated cases since the presymptomatic stages, as shown by a significant cortical and subcortical microglia activation. The involvement of sensorimotor cortex became evident at the symptomatic disease stage. Although our data indicate the role of in vivo PET imaging for assessing resident microglia in the investigation of SOD1‐ALS pathophysiology, further studies are needed to clarify the temporal and spatial dynamics of microglia activation and its relationship with neurodegeneration.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/acn3.51112

Cites

90 of 90 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Microglial activation in middle frontal and superior or middle temporal gyrus regions was also highly found in in vivo PET imaging studies in humans.

    “Microglial activation in middle frontal and superior or middle temporal gyrus regions was also highly found in vivo PET imaging studies in humans”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Tondo, G., Iaccarino, L., Cerami, C., Vanoli, G. E., Presotto, L., Masiello, V., Coliva, A., Salvi, F., Bartolomei, I., Mosca, L., Lunetta, C., & Perani, D.
Affiliations
  • Vita-Salute San Raffaele University (IT)
  • Istituto Universitario di Studi Superiori di Pavia (IT)
  • IRCCS Ospedale San Raffaele (IT)
  • Ospedale Bellaria (IT)
  • Azienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda (IT)
  • NeuroMuscular Omnicentre Serena Onlus Foundation Milan Italy
Corresponding author
Perani, Daniela
Venue
Annals of Clinical and Translational Neurology
Publisher
Wiley
Published
2020-08-06
Volume
7
Issue
9
Pages
1513-1523
ISSN
2328-9503 (ISSN-L)
OpenAlex
W3047985982
Cited by
56
References
90
Citations by year
2026: 5 · 2025: 13 · 2024: 12 · 2023: 13 · 2022: 5 · 2021: 7 · 2020: 1
FWCI
2.81
Type
journal article
Language
en
Open access
Locations
  • Annals of Clinical and Translational Neurology (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • BOA (University of Milano-Bicocca) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Archivio Istituzionale della Ricerca - Università Vita-Salute San Raffaele (submittedVersion)
Funders
INMIND (278850, FP7-HEALTH-2011)
Topics
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
Keywords
amyotrophic lateral sclerosis, SOD1 mutations, microglial activation, neuroinflammation, [11C]PK11195, translocator protein (TSPO), positron emission tomography, presymptomatic carriers, sensorimotor cortex, neurodegeneration, familial ALS
MeSH terms
Superoxide Dismutase-1, Adult, Aged, Amides, Amyotrophic Lateral Sclerosis, Brain, Female, Heterozygote, Humans, Inflammation, Isoquinolines, Male, Middle Aged, Microglia, Positron-Emission Tomography, Prodromal Symptoms

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review