Evidence map›Paper›PMID 19921848›Full record

ArticleMolecular pharmaceutics2010

Pharmacokinetics and brain uptake of a genetically engineered bifunctional fusion antibody targeting the mouse transferrin receptor.

Ruben J Boado, Qing-Hui Zhou, Jeff Zhiqiang Lu, Eric Ka-Wai Hui, William M Pardridge

Open access · greenAbstract read
In one paragraph

Article in Molecular pharmaceutics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
4.6field-weighted citation impact, top 6% 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

47 citing papers in PubMed, 120 citations in OpenAlex.

  1. Antibody-Based Biologics for CNS Disorders.Antibodies (Basel, Switzerland) · 2026
    Review
  2. Review
  3. Bispecific brain-penetrant antibodies for treatment of Alzheimer's disease.The journal of prevention of Alzheimer's disease · 2025
    Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Recent advances in drug delivery and targeting to the brain.Journal of controlled release : official journal of the Controlled Release Society · 2022
    Review
  14. A Brain-Targeting Bispecific-Multivalent Antibody Clears Soluble Amyloid-Beta Aggregates in Alzheimer's Disease Mice.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Article
  15. Review
  16. Review
  17. Article
  18. Review
  19. Neural stem cells secreting bispecific T cell engager to induce selective antiglioma activity.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  20. pH-responsive antibodies for therapeutic applications.Journal of biomedical science · 2021
    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

5 authors at 1 institution in 1 country.

Ruben J BoadoArmaGen Technologies, Inc., Santa Monica, California 90401, USA.
Qing-Hui Zhou
Jeff Zhiqiang Lu
Eric Ka-Wai Hui
William M Pardridge
ArmaGen (United States) · US

Funding

Monoclonal Antibody Drug Development for Alzheimer?s DiseaseR01AG032244 · NIA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI PARDRIDGE, WILLIAM M · 2008 to 2012
$1.6M
NIA NIH HHS R01 AG032244NIA NIH HHS R01-AG032244
6 · The paper itself

Abstract

Monoclonal antibodies (MAbs) are potential new therapeutics for brain diseases. However, MAbs do not cross the blood-brain barrier (BBB). The present work describes the genetic engineering of a fusion protein composed of a therapeutic single chain Fv (ScFv) antibody and a mouse/rat chimeric MAb against the mouse transferrin receptor (TfR). The TfRMAb acts as a molecular Trojan horse to ferry the therapeutic ScFv across the BBB in vivo in the mouse. The ScFv is fused to the carboxyl terminus of the heavy chain of the chimeric TfRMAb, and this fusion protein is designated cTfRMAb-ScFv. Chinese hamster ovary cells were permanently transfected, and a high secreting cell line in serum free medium was cloned. The cTfRMAb-ScFv fusion protein was purified to homogeneity on gels and Western blotting with protein G affinity chromatography. The cTfRMAb-ScFv fusion protein was bifunctional and bound both the target antigen, as determined by ELISA, and the mouse TfR, as determined with a radio-receptor assay. The cTfRMAb-ScFv fusion protein was radio-iodinated with the Bolton-Hunter reagent, and a pharmacokinetics study in mice showed that the fusion protein was rapidly cleared from blood with a median residence time of 175 +/- 32 min. The fusion protein was avidly taken up by brain with a % injected dose (ID)/g of 3.5 +/- 0.7, as compared to an MAb with no receptor specificity, which was 0.06 +/- 0.01% ID/g. These studies demonstrate that therapeutic MAbs may be re-engineered as fusion proteins with BBB molecular Trojan horses for targeted delivery across the BBB in vivo.

Indexed as

AnimalsAntibodies, BispecificAntibodies, MonoclonalBlood-Brain BarrierBrainCHO CellsCricetinaeCricetulusDrug Delivery SystemsImmunoglobulin FragmentsMaleMiceMice, Inbred BALB CProtein EngineeringRadioligand AssayRatsAntibodies, BispecificAntibodies, MonoclonalImmunoglobulin Fragmentsimmunoglobulin FvReceptors, TransferrinRecombinant Fusion Proteins

Identifiers

PMID19921848
PMCPMC2858389
OpenAlexW2023959423

What OpenQuestion holds

Textmetadata
LicenceTDM
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.