Evidence map›Paper›PMID 24106222›Full record

ArticleEMBO molecular medicine2013

Liver gene therapy by lentiviral vectors reverses anti-factor IX pre-existing immunity in haemophilic mice.

Andrea Annoni, Alessio Cantore, Patrizia Della Valle, Kevin Goudy, Mahzad Akbarpour, Fabio Russo, Sara Bartolaccini, Armando D'Angelo, Maria Grazia Roncarolo, Luigi Naldini

Open access · goldAbstract read
In one paragraph

Article in EMBO molecular medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
5.3field-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

38 citing papers in PubMed, 56 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. LSpECifying transgene expression.Molecular therapy. Nucleic acids · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Immune Responses to Viral Gene Therapy Vectors.Molecular therapy : the journal of the American Society of Gene Therapy · 2020
    Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Transcriptional Targeting and MicroRNA Regulation of Lentiviral Vectors.Molecular therapy. Methods & clinical development · 2019
    Review
  16. Review
  17. Article
  18. Review
  19. Review
  20. 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

10 authors at 3 institutions in 1 country.

Andrea AnnoniTIGET, San Raffaele Telethon Institute for Gene Therapy, San Raffaele Scientific Institute, Milan, Italy.
Alessio Cantore
Patrizia Della Valle
Kevin Goudy
Mahzad Akbarpour
Fabio Russo
Sara Bartolaccini
Armando D'Angelo
Maria Grazia Roncarolo
Luigi Naldini
The San Raffaele Telethon Institute for Gene Therapy · ITSan Raffaele University of Rome · ITVita-Salute San Raffaele University · IT

Funding

Telethon TGT06D03Telethon TGT11D03Telethon TGT11E01
6 · The paper itself

Abstract

A major complication of factor replacement therapy for haemophilia is the development of anti-factor neutralizing antibodies (inhibitors). Here we show that liver gene therapy by lentiviral vectors (LVs) expressing factor IX (FIX) strongly reduces pre-existing anti-FIX antibodies and eradicates FIX inhibitors in haemophilia B mice. Concomitantly, plasma FIX levels and clotting activity rose to 50-100% of normal. The treatment was effective in 75% of treated mice. FIX-specific plasma cells (PCs) and memory B cells were reduced, likely because of memory B-cell depletion in response to constant exposure to high doses of FIX. Regulatory T cells displaying FIX-specific suppressive capacity were induced in gene therapy treated mice and controlled FIX-specific T helper cells. Gene therapy proved safer than a regimen mimicking immune tolerance induction (ITI) by repeated high-dose FIX protein administration, which induced severe anaphylactoid reactions in inhibitors-positive haemophilia B mice. Liver gene therapy can thus reverse pre-existing immunity, induce active tolerance to FIX and establish sustained FIX activity at therapeutic levels. These data position gene therapy as an attractive treatment option for inhibitors-positive haemophilic patients.

Indexed as

Genetic TherapyAnimalsAntibodiesB-LymphocytesCell LineFactor IXGenetic VectorsHemophilia BHumansLentivirusLiverMiceMice, Inbred C57BLMice, KnockoutAntibodiesFactor IXgene therapyhaemophiliaimmune tolerance

Identifiers

PMID24106222
PMCPMC3840485
OpenAlexW2129485351

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.