Evidence map›Paper›PMID 31342134›Full record

ReviewEuropean journal of nuclear medicine and molecular imaging2019

Engineered antibodies: new possibilities for brain PET?

Dag Sehlin, Stina Syvänen, MINC faculty

Open access · hybridAbstract readReview
In one paragraph

Review in European journal of nuclear medicine and molecular imaging, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 4% 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

59 citing papers in PubMed, 1 synthesis or guideline pooled it, 100 citations in OpenAlex.

  1. Pooled it
  2. The Versatile Applications of Antisense Oligonucleotides in Modern Medicine.International journal of molecular sciences · 2026
    Review
  3. Radionuclide Selection Influences Imaging Outcomes in Immuno-PET with a Brain-Penetrating Anti-Amyloid-β Antibody.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2026
    Article
  4. Article
  5. Article
  6. Bispecific brain-penetrant antibodies for treatment of Alzheimer's disease.The journal of prevention of Alzheimer's disease · 2025
    Review
  7. PET imaging of TREM2 in amyloid-beta induced neuroinflammation.European journal of nuclear medicine and molecular imaging · 2025
    Article
  8. Article
  9. Article
  10. Review
  11. A brief history of Aβ imaging.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  12. Transferrin receptors.Experimental & molecular medicine · 2025
    Review
  13. A brain-penetrant bispecific antibody lowers oligomeric alpha-synuclein and activates microglia in a mouse model of alpha-synuclein pathology.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2025
    Article
  14. Review
  15. Review
  16. Article
  17. SyntheticRSC medicinal chemistry · 2024
    Review
  18. Article
  19. Article
  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

3 authors at 1 institution in 1 country.

Dag SehlinDepartment of Public Health and Caring Sciences/Geriatrics, Uppsala University, Rudbeck Laboratory, 75185, Uppsala, Sweden.
Stina SyvänenDepartment of Public Health and Caring Sciences/Geriatrics, Uppsala University, Rudbeck Laboratory, 75185, Uppsala, Sweden. stina.syvanen@pubcare.uu.se.ORCID http://orcid.org/0000-0002-8196-4041
MINC faculty
Uppsala University · SE

Funding

Medical Research Council MC_U105597119Medical Research Council MC_UU_00005/12
6 · The paper itself

Abstract

Almost 50 million people worldwide are affected by Alzheimer's disease (AD), the most common neurodegenerative disorder. Development of disease-modifying therapies would benefit from reliable, non-invasive positron emission tomography (PET) biomarkers for early diagnosis, monitoring of disease progression, and assessment of therapeutic effects. Traditionally, PET ligands have been based on small molecules that, with the right properties, can penetrate the blood-brain barrier (BBB) and visualize targets in the brain. Recently a new class of PET ligands based on antibodies have emerged, mainly in applications related to cancer. While antibodies have advantages such as high specificity and affinity, their passage across the BBB is limited. Thus, to be used as brain PET ligands, antibodies need to be modified for active transport into the brain. Here, we review the development of radioligands based on antibodies for visualization of intrabrain targets. We focus on antibodies modified into a bispecific format, with the capacity to undergo transferrin receptor 1 (TfR1)-mediated transcytosis to enter the brain and access pathological proteins, e.g. amyloid-beta. A number of such antibody ligands have been developed, displaying differences in brain uptake, pharmacokinetics, and ability to bind and visualize the target in the brain of transgenic mice. Potential pathological changes related to neurodegeneration, e.g. misfolded proteins and neuroinflammation, are suggested as future targets for this novel type of radioligand. Challenges are also discussed, such as the temporal match of radionuclide half-life with the ligand's pharmacokinetic profile and translation to human use. In conclusion, brain PET imaging using bispecific antibodies, modified for receptor-mediated transcytosis across the BBB, is a promising method for specifically visualizing molecules in the brain that are difficult to target with traditional small molecule ligands.

Indexed as

Protein EngineeringAnimalsAntibodiesBlood-Brain BarrierBrainHumansPositron-Emission TomographyProtein TransportAntibodiesAlzheimer’s disease (AD)Amyloid-β (Aβ)AntibodyBlood–brain barrier (BBB)Positron emission tomography (PET)Transferrin receptor 1 (TfR1)-mediated transcytosis

Identifiers

PMID31342134
PMCPMC6879437
OpenAlexW2963312021

What OpenQuestion holds

Textmetadata
LicenceCC BY
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 OpenQuestion graph.