Cited by 252Hemophilia Treatment and ResearchVirus-based gene therapy researchRNA Interference and Gene Delivery

A microRNA-regulated lentiviral vector mediates stable correction of hemophilia B mice

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Brown, Brian D., Cantore, Alessio, Annoni, Andrea, Sergi, Lucia Sergi, Lombardo, Angelo, Della Valle, Patrizia, D'Angelo, Armando, Naldini, Luigi·2007·Blood

Abstract

A longstanding goal for the treatment of hemophilia B is the development of a gene transfer strategy that can maintain sustained production of clotting factor IX (F.IX) in the absence of an immune response. To this end, we have sought to use lentiviral vectors (LVs) as a means for systemic gene transfer. Unfortunately, initial evaluation of LVs expressing F.IX from hepatocyte-specific promoters failed to achieve sustained F.IX expression in hemophilia B mice due to the induction of an anti-F.IX cellular immune response. Further analysis suggested that this may be a result of off-target transgene expression in hematopoietic-lineage cells of the spleen. In order to overcome this problem, we modified our vector to contain a target sequence for the hematopoietic-specific microRNA, miR-142-3p. This eliminated off-target expression in hematopoietic cells, and enabled sustained gene transfer in hemophilia B mice for more than 280 days after injection. Treated mice had more than 10% normal F.IX activity, no detectable anti-F.IX antibodies, and were unresponsive to F.IX immunization. Importantly, the mice survived tail-clip challenge, thus demonstrating phenotypic correction of their bleeding diathesis. This work, which is among the first applications to exploit the microRNA regulatory pathway, provides the basis for a promising new therapy for the treatment of hemophilia B.

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Authors
Brown, B. D., Cantore, A., Annoni, A., Sergi, L. S., Lombardo, A., Della Valle, P., D'Angelo, A., & Naldini, L.
Affiliations
  • The San Raffaele Telethon Institute for Gene Therapy (IT)
  • Coagulation Service and Thrombosis Research Unit, Fondazione Centro San Raffaele Del Monte Tabor Istituto dì Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Hospital, Milan; and
  • Vita-Salute San Raffaele University (IT)
Venue
Blood
Published
2007-12-15
Volume
110
Issue
13
Pages
4144-4152
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2044474105
Cited by
252
References
54
Citations by year
2026: 2 · 2025: 6 · 2024: 5 · 2023: 1 · 2022: 8 · 2021: 11 · 2020: 10 · 2019: 8 · 2018: 7 · 2017: 10 · 2016: 12 · 2015: 17 · 2014: 11 · 2013: 25 · 2012: 26
FWCI
14.81
Type
journal article
Language
en
Open access
Locations
  • Blood (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca - Università Vita-Salute San Raffaele (submittedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Hemophilia Treatment and Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Virus-based gene therapy research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
hemophilia B, lentiviral vectors, microRNA, miR-142-3p, clotting factor IX, gene therapy, off-target expression, hematopoietic cells, sustained transgene expression, bleeding tendency, transgenic mice
MeSH terms
Animals, Antibodies, Blood Cells, Hemophilia B, Factor IX, Genetic Vectors, Genetic Therapy, Lentivirus, Gene Transfer Techniques, MicroRNAs, Mice

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