Evidence map›Paper›PMID 28657418›Full record

ArticlemAbs

Chemically-defined camelid antibody bioconjugate for the magnetic resonance imaging of Alzheimer's disease.

Matthias Vandesquille, Tengfei Li, Chrystelle Po, Christelle Ganneau, Pascal Lenormand, Clémence Dudeffant, Christian Czech, Fiona Grueninger, Charles Duyckaerts, Benoît Delatour and 3 more

Abstract read
In one paragraph

Article in mAbs. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. Applications of nanobodies in brain diseases.Frontiers in immunology · 2022
    Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Detection of retinal and blood Aβ oligomers with nanobodies.Alzheimer's & dementia (Amsterdam, Netherlands) · 2021
    Article
  16. Review
  17. Review
  18. Review
  19. Use of camel single-domain antibodies for the diagnosis and treatment of zoonotic diseases.Comparative immunology, microbiology and infectious diseases · 2018
    Review
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

13 authors.

Matthias Vandesquillea Institut Pasteur, Unité de Chimie des Biomolécules, Département Biologie Structurale et Chimie , Paris , France.
Tengfei Lic Institut Pasteur, CITECH, Plateforme d'Ingénierie des Anticorps , 75724 , Paris , France.
Chrystelle Poa Institut Pasteur, Unité de Chimie des Biomolécules, Département Biologie Structurale et Chimie , Paris , France.
Christelle Ganneaua Institut Pasteur, Unité de Chimie des Biomolécules, Département Biologie Structurale et Chimie , Paris , France.
Pascal Lenormandc Institut Pasteur, CITECH, Plateforme d'Ingénierie des Anticorps , 75724 , Paris , France.
Clémence Dudeffante Sorbonne Universités, UPMC Univ. Paris 06 UMR S 1127, and Inserm, U 1127, and CNRS UMR 7225, and ICM, 75013, Paris , France.
Christian Czechg F. Hoffmann-La Roche AG, Pharmaceutical Research and Early Development, NORD DTA, Roche Innovation Center Basel , Basel , Switzerland.
Fiona Grueningerg F. Hoffmann-La Roche AG, Pharmaceutical Research and Early Development, NORD DTA, Roche Innovation Center Basel , Basel , Switzerland.
Charles Duyckaertse Sorbonne Universités, UPMC Univ. Paris 06 UMR S 1127, and Inserm, U 1127, and CNRS UMR 7225, and ICM, 75013, Paris , France.
Benoît Delatoure Sorbonne Universités, UPMC Univ. Paris 06 UMR S 1127, and Inserm, U 1127, and CNRS UMR 7225, and ICM, 75013, Paris , France.
Marc Dhenaind French Alternative Energies and Atomic Energy Commission , Institute of Biomedical Imaging, Molecular Imaging Research Center , Fontenay-aux-Roses , France.ORCID http://orcid.org/0000-0001-8804-4101
Pierre Lafayec Institut Pasteur, CITECH, Plateforme d'Ingénierie des Anticorps , 75724 , Paris , France.
Sylvie Baya Institut Pasteur, Unité de Chimie des Biomolécules, Département Biologie Structurale et Chimie , Paris , France.ORCID http://orcid.org/0000-0002-3538-2163

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Today, molecular imaging of neurodegenerative diseases is mainly based on small molecule probes. Alternatively, antibodies are versatile tools that may be developed as new imaging agents. Indeed, they can be readily obtained to specifically target any antigen of interest and their scaffold can be functionalized. One of the critical issues involved in translating antibody-based probes to the clinic is the design and synthesis of perfectly-defined conjugates. Camelid single-domain antibody-fragments (VHHs) are very small and stable antibodies that are able to diffuse in tissues and potentially cross the blood brain barrier (BBB). Here, we selected a VHH (R3VQ) specifically targeting one of the main lesions of Alzheimer's disease (AD), namely the amyloid-beta (Aß) deposits. It was used as a scaffold for the design of imaging probes for magnetic resonance imaging (MRI) and labeled with the contrastophore gadolinium using either a random or site-specific approach. In contrast to the random strategy, the site-specific conjugation to a single reduced cysteine in the C-terminal part of the R3VQ generates a well-defined bioconjugate in a high yield process. This new imaging probe is able to cross the BBB and label Aß deposits after intravenous injection. Also, it displays improved r1 and r2 relaxivities, up to 30 times higher than a widely used clinical contrast agent, and it allows MRI detection of amyloid deposits in post mortem brain tissue of a mouse model of AD. The ability to produce chemically-defined VHH conjugates that cross the BBB opens the way for future development of tailored imaging probes targeting intracerebral antigens.

Indexed as

Alzheimer's disease diagnosisamyloid depositschemically-defined imaging probemagnetic resonance imagingsingle-domain antibodysite-specific conjugation

Identifiers

PMID28657418
PMCPMC5540085

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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 OpenQuestion graph.