Publications
Iterative Process Development of an HDR Gene Edited HSPC Drug Product to Treat Sickle Cell Disease
This presentation details the process development (V2.0) for nula-cel, a gene-edited HSPC product for Sickle Cell Disease. G-Rex were implemented for cell culture, improving cell health and scalability compared to the V1.0 process. The optimized process showed improved engraftment and editing efficiency.
Publications
CRISPR-Cas9 engineering of human T regulatory cells – Design and optimization of a manufacturing process
This paper outlines a process for producing SRC-3 knockout human Tregs using CRISPR-Cas9. G-Rex devices were used to scale up production, achieving a 25-40 fold expansion in 14 days. The protocol is compatible with GMP standards for clinical-scale manufacturing of engineered Tregs.
Publications
CD147-CAR-NK cell therapy shows minimal toxicities in human CD147 transgenic mouse model with solid tumors
The study investigates the toxicity of CD147-CAR-NK therapy in a human CD147 transgenic mouse model. NK cells were expanded and transduced in G-Rex plates. Results indicate minimal on-target/off-tumor toxicities and less neuroinflammation compared to CAR-T therapy, supporting clinical potential.
Publications
Donor insertion into CX3CR1 allows epigenetic modulation of a constitutive promoter on hematopoietic stem cells and its activation upon myeloid differentiation
This paper describes a knock-in strategy (KI-Ep) inserting a constitutive expression cassette into the CX3CR1 locus of HSPCs to regulate transgene expression. G-Rex systems were used for the long-term culture of edited HSPCs. The method enables low expression in stem cells and activation upon myeloid differentiation.
Publications
Optimized GMP-grade production of non-viral Sleeping Beauty-generated CARCIK cells for enhanced fitness and clinical scalability
This study optimizes non-viral Sleeping Beauty CAR-CIK cell production. Switching from T-flasks to G-Rex reduced handling time and produced less differentiated cells with enhanced metabolic fitness and in vivo efficacy. The method was validated in GMP conditions for clinical scalability.
Publications
Proof of concept of a fully enclosed CAR-T process without use of a biosafety cabinet
This study evaluates a fully enclosed CAR-T manufacturing process eliminating biosafety cabinets. It uses CellSeal Connect vials for cryopreservation and G-Rex for cell activation and expansion. Results show comparable cell expansion, viability, and transduction to standard open processes.
Publications
Preclinical data and design of a phase I clinical trial of neoantigen-reactive TILs for advanced epithelial or ICB-resistant solid cancers
This study presents the design of a phase I clinical trial for NEXTGEN-TIL, a product selected for neoantigen recognition in solid tumors. It details preclinical expansion from biopsies. G-Rex vessels were used for clinical-scale GMP validation of the rapid expansion protocol (REP) to obtain sufficient cell doses.
Publications
Increased functional potency of multi-edited CAR-T cells manufactured by a non-viral transfection system
This study compares Solupore and electroporation for manufacturing multi-edited CAR-T cells. Solupore-transfected cells showed higher viability, TSCM retention, and in vivo efficacy. 24-well G-Rex were used to assess cell proliferation and cytokine production, supporting metabolic health analysis.
Publications
Scalable Manufacturing of T Cells Using cGMP-Compliant Ancillary Reagents
This poster evaluates cGMP T cell expansion protocols using ImmunoCult reagents across G-Rex (6M plate and 50M bottle), Xuri, and PBS-MINI bioreactors. G-Rex produced high cell densities and yields of functional T cells, including central memory subsets, suitable for clinical manufacturing.
Publications
Improving lung cancer tumor-infiltrating lymphocyte (TIL) manufacturing
This study describes the MC3 protocol for lung TIL manufacturing, which simplifies the process by using G-Rex for both preREP and REP phases and replacing feeder cells with CD3/CD28 nanobeads. The method reduced culture time and costs while producing TILs with superior cytotoxicity against tumor organoids.
Publications
Engineering tripartite gene editing machinery for highly efficient non-viral targeted genome integration
The authors developed 'enGager', a Cas9 fusion system that tethers cssDNA donors to enhance non-viral targeted integration. Used to engineer CD19/CD22 dual CAR-T cells. Post-electroporation, T cells were transferred to G-Rex 24-well plates for expansion, achieving high knock-in efficiency and cell viability.
Publications
EMCN NOT Gate (iCAR) Preserves Human HSPCs while Protecting Human HSC/HPCs from Off-Tumor Toxicity in a Humanized Mouse Model
This abstract presents SENTI-202, a logic-gated CAR-NK therapy for AML. The EMCN inhibitory CAR protects healthy HSCs from off-tumor toxicity. R&D scale CAR-NK cell manufacturing utilized 1L G-Rex for expansion, achieving high cell numbers and viability while maintaining logic gate function.