Semirational bioengineering of AAV vectors with increased potency and specificity for systemic gene therapy of muscle disorders

  • Jihad El Andari
    Medical Faculty, Department of Infectious Diseases/Virology, Section Viral Vector Technologies, Cluster of Excellence CellNetworks, University of Heidelberg, 69120 Heidelberg, Germany.
  • Edith Renaud-Gabardos
    Genethon, 91000 Evry, France.
  • Warut Tulalamba
    Department of Gene Therapy and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
  • Jonas Weinmann
    Medical Faculty, Department of Infectious Diseases/Virology, Section Viral Vector Technologies, Cluster of Excellence CellNetworks, University of Heidelberg, 69120 Heidelberg, Germany.
  • Louise Mangin
    Genethon, 91000 Evry, France.
  • Quang Hong Pham
    Department of Gene Therapy and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
  • Susanne Hille
    University Hospital Schleswig-Holstein, Campus Kiel, Innere Medizin III, 24105 Kiel, Germany.
  • Antonette Bennett
    Department of Biochemistry and Molecular Biology, Center for Structural Biology, McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA.
  • Esther Attebi
    Genethon, 91000 Evry, France.
  • Emanuele Bourges
    Genethon, 91000 Evry, France.
  • Christian Leborgne
    Genethon, 91000 Evry, France.
  • Nicolas Guerchet
    Genethon, 91000 Evry, France.
  • Julia Fakhiri
    Medical Faculty, Department of Infectious Diseases/Virology, Section Viral Vector Technologies, Cluster of Excellence CellNetworks, University of Heidelberg, 69120 Heidelberg, Germany.
  • Chiara Krämer
    Medical Faculty, Department of Infectious Diseases/Virology, Section Viral Vector Technologies, Cluster of Excellence CellNetworks, University of Heidelberg, 69120 Heidelberg, Germany.
  • Ellen Wiedtke
    Medical Faculty, Department of Infectious Diseases/Virology, Section Viral Vector Technologies, Cluster of Excellence CellNetworks, University of Heidelberg, 69120 Heidelberg, Germany.
  • Robert McKenna
    Department of Biochemistry and Molecular Biology, Center for Structural Biology, McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA.
  • Laurence Guianvarc’h
    Genethon, 91000 Evry, France.
  • Magali Toueille
    Genethon, 91000 Evry, France.
  • Giuseppe Ronzitti
    Genethon, 91000 Evry, France.
  • Matthias Hebben
    Genethon, 91000 Evry, France.
  • Federico Mingozzi
    Genethon, 91000 Evry, France.
  • Thierry VandenDriessche
    Department of Gene Therapy and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
  • Mavis Agbandje-McKenna
    Department of Biochemistry and Molecular Biology, Center for Structural Biology, McKnight Brain Institute, University of Florida, Gainesville, FL 32610, USA.
  • Oliver J. Müller
    University Hospital Schleswig-Holstein, Campus Kiel, Innere Medizin III, 24105 Kiel, Germany.
  • Marinee K. Chuah
    Department of Gene Therapy and Regenerative Medicine, Vrije Universiteit Brussel (VUB), Brussels 1090, Belgium.
  • Ana Buj-Bello
    Genethon, 91000 Evry, France.
  • Dirk Grimm
    Medical Faculty, Department of Infectious Diseases/Virology, Section Viral Vector Technologies, Cluster of Excellence CellNetworks, University of Heidelberg, 69120 Heidelberg, Germany.

抄録

<jats:p>Bioengineering of viral vectors for therapeutic gene delivery is a pivotal strategy to reduce doses, facilitate manufacturing, and improve efficacy and patient safety. Here, we engineered myotropic adeno-associated viral (AAV) vectors via a semirational, combinatorial approach that merges AAV capsid and peptide library screens. We first identified shuffled AAVs with increased specificity in the murine skeletal muscle, diaphragm, and heart, concurrent with liver detargeting. Next, we boosted muscle specificity by displaying a myotropic peptide on the capsid surface. In a mouse model of X-linked myotubular myopathy, the best vectors—AAVMYO2 and AAVMYO3—prolonged survival, corrected growth, restored strength, and ameliorated muscle fiber size and centronucleation. In a mouse model of Duchenne muscular dystrophy, our lead capsid induced robust microdystrophin expression and improved muscle function. Our pipeline is compatible with complementary AAV genome bioengineering strategies, as demonstrated here with two promoters, and could benefit many clinical applications beyond muscle gene therapy.</jats:p>

収録刊行物

  • Science Advances

    Science Advances 8 (38), eabn4704-, 2022-09-23

    American Association for the Advancement of Science (AAAS)

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