Semi-automated closed system manufacturing of lentivirus gene-modified haematopoietic stem cells for gene therapy

Nat Commun. 2016 Oct 20:7:13173. doi: 10.1038/ncomms13173.

Abstract

Haematopoietic stem cell (HSC) gene therapy has demonstrated potential to treat many diseases. However, current state of the art requires sophisticated ex vivo gene transfer in a dedicated Good Manufacturing Practices facility, limiting availability. An automated process would improve the availability and standardized manufacture of HSC gene therapy. Here, we develop a novel program for semi-automated cell isolation and culture equipment to permit complete benchtop generation of gene-modified CD34+ blood cell products for transplantation. These cell products meet current manufacturing quality standards for both mobilized leukapheresis and bone marrow, and reconstitute human haematopoiesis in immunocompromised mice. Importantly, nonhuman primate autologous gene-modified CD34+ cell products are capable of stable, polyclonal multilineage reconstitution with follow-up of more than 1 year. These data demonstrate proof of concept for point-of-care delivery of HSC gene therapy. Given the many target diseases for gene therapy, there is enormous potential for this approach to treat patients on a global scale.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antigens, CD34 / genetics
  • Antigens, CD34 / metabolism
  • Automation, Laboratory / instrumentation*
  • Automation, Laboratory / standards
  • Biomarkers / metabolism
  • Cell Separation / instrumentation
  • Cell Separation / methods*
  • Cell Separation / standards
  • Genetic Therapy / methods*
  • Genetic Vectors / chemistry
  • Genetic Vectors / metabolism
  • HEK293 Cells
  • Hematopoietic Stem Cell Transplantation
  • Hematopoietic Stem Cells / cytology*
  • Hematopoietic Stem Cells / metabolism
  • Humans
  • Lentivirus / genetics*
  • Lentivirus / metabolism
  • Macaca nemestrina
  • Mice
  • Staining and Labeling / methods
  • Transduction, Genetic / methods*
  • Transduction, Genetic / standards

Substances

  • Antigens, CD34
  • Biomarkers