Evidence map›Paper›PMID 23936336›Full record

ArticlePloS one2013

Specific imaging of inflammation with the 18 kDa translocator protein ligand DPA-714 in animal models of epilepsy and stroke.

Denise Harhausen, Violetta Sudmann, Uldus Khojasteh, Jochen Müller, Marietta Zille, Keith Graham, Andrea Thiele, Thomas Dyrks, Ulrich Dirnagl, Andreas Wunder

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.5field-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

20 citing papers in PubMed, 41 citations in OpenAlex.

  1. Quantification of [18F]DPA-714 binding in the human brain: initial studies in healthy controls and Alzheimer's disease patients.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2015
    Trial
  2. Article
  3. Review
  4. What value can TSPO PET bring for epilepsy treatment?European journal of nuclear medicine and molecular imaging · 2021
    Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Quantitative longitudinal imaging of activated microglia as a marker of inflammation in the pilocarpine rat model of epilepsy using [Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  11. Article
  12. Article
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  15. Multimodal imaging reveals temporal and spatial microglia and matrix metalloproteinase activity after experimental stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2015
    Article
  16. Article
  17. A dual-labeled Annexin A5 is not suited for SPECT imaging of brain cell death in experimental murine stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2014
    Article
  18. Evaluation of 2-[¹⁸F]fluoroacetate kinetics in rodent models of cerebral hypoxia-ischemia.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2014
    Article
  19. Neuroimaging the epileptogenic process.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2014
    Review
  20. Article
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

10 authors at 2 institutions in 1 country.

Denise HarhausenDepartment of Experimental Neurology, Charité-Universitätsmedizin Berlin, Berlin, Germany. denise.harhausen@charite.de
Violetta Sudmann
Uldus Khojasteh
Jochen Müller
Marietta Zille
Keith Graham
Andrea Thiele
Thomas Dyrks
Ulrich Dirnagl
Andreas Wunder
Charité - Universitätsmedizin Berlin · DEBayer (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inflammation is a pathophysiological hallmark of many diseases of the brain. Specific imaging of cells and molecules that contribute to cerebral inflammation is therefore highly desirable, both for research and in clinical application. The 18 kDa translocator protein (TSPO) has been established as a suitable target for the detection of activated microglia/macrophages. A number of novel TSPO ligands have been developed recently. Here, we evaluated the high affinity TSPO ligand DPA-714 as a marker of brain inflammation in two independent animal models. For the first time, the specificity of radiolabeled DPA-714 for activated microglia/macrophages was studied in a rat model of epilepsy (induced using Kainic acid) and in a mouse model of stroke (transient middle cerebral artery occlusion, tMCAO) using high-resolution autoradiography and immunohistochemistry. Additionally, cold-compound blocking experiments were performed and changes in blood-brain barrier (BBB) permeability were determined. Target-to-background ratios of 2 and 3 were achieved in lesioned vs. unaffected brain tissue in the epilepsy and tMCAO models, respectively. In both models, ligand uptake into the lesion corresponded well with the extent of Ox42- or Iba1-immunoreactive activated microglia/macrophages. In the epilepsy model, ligand uptake was almost completely blocked by pre-injection of DPA-714 and FEDAA1106, another high-affinity TSPO ligand. Ligand uptake was independent of the degree of BBB opening and lesion size in the stroke model. We provide further strong evidence that DPA-714 is a specific ligand to image activated microglia/macrophages in experimental models of brain inflammation.

Indexed as

Disease Models, AnimalPyrazolesPyrimidinesAnimalsAutoradiographyBlood-Brain BarrierCarrier ProteinsCells, CulturedEpilepsyFluorine RadioisotopesImmunoenzyme TechniquesInflammationKainic AcidMacrophagesMaleMiceBzrp protein, mouseCarrier ProteinsFluorine RadioisotopesKainic AcidN,N-diethyl-2-(2-(4-(2-fluoroethoxy)phenyl)-5,7-dimethylpyrazolo(1,5-a)pyrimidin-3-yl)acetamidePyrazolesPyrimidinesRadiopharmaceuticalsReceptors, GABAReceptors, GABA-ATspo protein, rat

Identifiers

PMID23936336
PMCPMC3732268
OpenAlexW1989182875

What OpenQuestion holds

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LicenceCC BY
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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.