Semi-automated Closed System Manufacturing of Lentivirus Gene-modified Haematopoietic Stem Cells for Gene Therapy
Overview
Authors
Affiliations
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.
Bui J, Starke C, Poole N, Rust B, Jerome K, Kiem H Mol Ther. 2024; 32(5):1238-1251.
PMID: 38414244 PMC: 11081808. DOI: 10.1016/j.ymthe.2024.02.030.
Petty N, Radtke S, Fields E, Humbert O, Llewellyn M, Laszlo G Mol Ther Methods Clin Dev. 2023; 31:101121.
PMID: 37868209 PMC: 10585325. DOI: 10.1016/j.omtm.2023.101121.
Cellular Cancer Immunotherapy Development and Manufacturing in the Clinic.
Fenton G, Mitchell D Clin Cancer Res. 2022; 29(5):843-857.
PMID: 36383184 PMC: 9975672. DOI: 10.1158/1078-0432.CCR-22-2257.
CRISPR/Cas-Based Gene Editing Strategies for DOCK8 Immunodeficiency Syndrome.
Ravendran S, Hernandez S, Konig S, Bak R Front Genome Ed. 2022; 4:793010.
PMID: 35373187 PMC: 8969908. DOI: 10.3389/fgeed.2022.793010.
Towards access for all: 1st Working Group Report for the Global Gene Therapy Initiative (GGTI).
Adair J, Androski L, Bayigga L, Bazira D, Brandon E, Dee L Gene Ther. 2021; 30(3-4):216-221.
PMID: 34493840 PMC: 10113145. DOI: 10.1038/s41434-021-00284-4.