Evidence map›Paper›PMID 26909355›Full record

ArticleMolecular therapy. Methods & clinical development2016

Effects of FVIII immunity on hepatocyte and hematopoietic stem cell-directed gene therapy of murine hemophilia A.

Allison M Lytle, Harrison C Brown, Na Yoon Paik, Kristopher A Knight, J Fraser Wright, H Trent Spencer, Christopher B Doering

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy. Methods & clinical development, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

21 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Escape or Fight: Inhibitors in Hemophilia A.Frontiers in immunology · 2020
    Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Target-Cell-Directed Bioengineering Approaches for Gene Therapy of Hemophilia A.Molecular therapy. Methods & clinical development · 2018
    Article
  19. Protein S: a Multifunctional Anticoagulant.Biomedical research and clinical practice · 2017
    Article
  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

7 authors at 4 institutions in 1 country.

Allison M LytleGraduate Program in Molecular and Systems Pharmacology, Emory University , Atlanta, Georgia, USA.
Harrison C BrownGraduate Program in Molecular and Systems Pharmacology, Emory University , Atlanta, Georgia, USA.
Na Yoon PaikAflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine , Atlanta, Georgia, USA.
Kristopher A KnightAflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine , Atlanta, Georgia, USA.
J Fraser WrightDepartment of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA; Center for Cellular and Molecular Therapeutics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
H Trent SpencerAflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine , Atlanta, Georgia, USA.
Christopher B DoeringAflac Cancer and Blood Disorders Center, Department of Pediatrics, Emory University School of Medicine , Atlanta, Georgia, USA.
Emory University · USAflac (United States) · USCenter for Cancer and Blood Disorders · USChildren's Hospital of Philadelphia · US

Funding

Translational Research SkillsU54HL112309 · NHLBI · EMORY UNIVERSITY · PI LOLLAR, JOHN S. · 2012 to 2016
$12.1M
Graduate Training in the Pharmacological StudiesT32GM008602 · NIGMS · EMORY UNIVERSITY · PI HALL, RANDY A. · 1996 to 2021
$5.1M
NHLBI NIH HHS U54 HL112309NIGMS NIH HHS T32 GM008602
6 · The paper itself

Abstract

Immune responses to coagulation factors VIII (FVIII) and IX (FIX) represent primary obstacles to hemophilia treatment. Previously, we showed that hematopoietic stem cell (HSC) retroviral gene therapy induces immune nonresponsiveness to FVIII in both naive and preimmunized murine hemophilia A settings. Liver-directed adeno-associated viral (AAV)-FIX vector gene transfer achieved similar results in preclinical hemophilia B models. However, as clinical immune responses to FVIII and FIX differ, we investigated the ability of liver-directed AAV-FVIII gene therapy to affect FVIII immunity in hemophilia A mice. Both FVIII naive and preimmunized mice were administered recombinant AAV8 encoding a liver-directed bioengineered FVIII expression cassette. Naive animals receiving high or mid-doses subsequently achieved near normal FVIII activity levels. However, challenge with adjuvant-free recombinant FVIII induced loss of FVIII activity and anti-FVIII antibodies in mid-dose, but not high-dose AAV or HSC lentiviral (LV) vector gene therapy cohorts. Furthermore, unlike what was shown previously for FIX gene transfer, AAV-FVIII administration to hemophilia A inhibitor mice conferred no effect on anti-FVIII antibody or inhibitory titers. These data suggest that functional differences exist in the immune modulation achieved to FVIII or FIX in hemophilia mice by gene therapy approaches incorporating liver-directed AAV vectors or HSC-directed LV.

Identifiers

PMID26909355
PMCPMC4750467
OpenAlexW2342733099

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.