Knowledge HQ
Publications
AIMTM platform: A new immunotherapy approach for viral diseases
This document describes the AIM platform's ability to enrich and expand antigen-specific CD8+ T cells for viral targets. G-Rex® culture systems were used for the 14-day expansion process.
Publications
Natural killer cells in clinical development as non-engineered, engineered, and combination therapies
This review analyzes the landscape of allogeneic NK cell therapies, covering cell sources, engineering, and combination strategies. It highlights the G-Rex® platform as a widely used static bioreactor for the clinical manufacturing of NK cell products, including GDA-201 and cord blood-derived NK cells.
Publications
Local delivery of interleukin 7 with an oncolytic adenovirus activates tumor-infiltrating lymphocytes and causes tumor regression
An oncolytic adenovirus expressing human IL-7 (Ad5/3-E2F-d24-hIL7) was developed to activate TILs within the tumor microenvironment. It increased T cell infiltration and caused tumor regression in animal models. G-Rex® culturing plates were used for the rapid expansion of PBMCs in control experiments.
Publications
Development of a cGMP-compliant process to manufacture donor-derived, CD45RA-depleted memory CD19-CAR T cells
This study establishes a cGMP-compliant manufacturing process for allogeneic CD19-CAR T cells using CD45RA-depleted memory T cells. The process utilizes G-Rex® 6M and G-Rex® 100M-CS devices for efficient cell expansion, ensuring sufficient yield and phenotype preservation for clinical applications.
Publications
TEM8 Tri- specific Killer Engager binds both tumor and tumor stroma to specifically engage natural killer cell anti- tumor activity
A Tri-specific Killer Engager (TriKE) targeting TEM8 (cam1615TEM8) was developed to redirect NK cells against both tumor and stromal cells. The molecule enhanced NK cell proliferation and antitumor efficacy in mouse models. Enriched NK cells for in vivo experiments were expanded in G-Rex® 6-well plates.
Publications
Neutralizing antibodies protect mice against Venezuelan equine encephalitis virus aerosol challenge
This study isolates and characterizes neutralizing monoclonal antibodies against Venezuelan equine encephalitis virus (VEEV) from mice and humans. These antibodies target the E2 glycoprotein and protect mice from lethal aerosol challenge. G-Rex® devices were used to expand hybridoma clones in serum-free medium.
Publications
Feeder-Cell-Free and Serum-Free Expansion of Natural Killer Cells Using Cloudz Microspheres, G-Rex®6M, and Human Platelet Lysate
The authors developed a feeder-free, xeno-free protocol for NK cell expansion using NK Cloudz microspheres in G-Rex®6M vessels with human platelet lysate. The method achieved ~387-fold expansion in 10 days with high purity and cytotoxicity, offering a scalable alternative to feeder cell-based methods.
Publications
Genome Editing With TALEN, CRISPR-Cas9 and CRISPR-Cas12a in Combination With AAV6 Homology Donor Restores T Cell Function for XLP
This study demonstrates that genome editing with TALEN or CRISPR can restore SAP expression and function in T cells from XLP patients. PBMC stimulation and culture were performed in G-Rex® 24 plates. Edited cells showed physiological SAP levels and restored immune functions, suggesting a viable therapeutic approach.
Publications
BOXR1030, an anti-GPC3 CAR with exogenous GOT2 expression, shows enhanced T cell metabolism and improved anti-cell line derived tumor xenograft activity
The authors developed BOXR1030, a GPC3-targeted CAR T cell co-expressing GOT2 to enhance metabolism. T cells were expanded in G-Rex® 10 or 100 units. BOXR1030 demonstrated superior in vivo antitumor activity, reduced exhaustion, and better persistence in solid tumor xenograft models compared to control CARs.
Publications
Optimization of therapeutic T cell expansion in G-Rex® device and applicability to large-scale production for clinical use
This study optimized the expansion of cytokine-induced killer (CIK) and blinatumomab-expanded T cells (BET) in G-Rex® devices. G-Rex® allowed for expansion to >30 million cells/cm2 in 10-11 days with minimal manipulation, significantly faster than T-flasks, while maintaining cell phenotype and function.
Publications
A SUPPLY CHAIN CRISIS STORY: CULTURE BAG SHORTAGE ENFORCED VALIDATION OF AN ALTERNATIVE EXPANSION SYSTEM FOR CAR T CELLS
Due to supply chain shortages, the authors validated G-Rex® vessels as an alternative to Wave bioreactors for CAR T expansion. G-Rex® 1L vessels produced 2-4 billion T cells with >90% viability and comparable phenotype/function, using significantly less media and labor than the Wave system.
Publications
Enabling Allogeneic T Cell-Based Therapies: Scalable Stirred-Tank Bioreactor Mediated Manufacturing
This paper presents a scalable platform for allogeneic T cell manufacturing using stirred-tank bioreactors (STR) with perfusion. It compares STR performance to G-Rex®, noting that while G-Rex® achieved 28-fold expansion, the perfused STR achieved 167-fold expansion, demonstrating superior scalability.