Knowledge HQ
Publications
Scalable process development of NK and CAR-NK expansion in a closed bioreactor
The authors developed a scalable process for expanding NK and CAR-NK cells using G-Rex® 100M closed-system. The study showed that cells expanded in G-Rex® 100M retained similar phenotypes and cytotoxicity to those grown in G-Rex® 6-well plates.
Publications
S309-CAR-NK cells bind the Omicron variants in vitro and reduce SARS-CoV-2 viral loads in humanized ACE2-NSG mice
This study demonstrates that S309-CAR-NK cells can bind to SARS-CoV-2 variants and reduce viral loads in humanized ACE2-NSG mice. Primary NK cell expansion and CAR-NK cell maintenance were performed using G-Rex® wells.
Publications
CAR-T cell expansion platforms yield distinct T cell differentiation states
This study compares CAR-T expansion in Prodigy, Xuri, G-Rex®, and bags. G-Rex® (500M) cultures yielded effector memory-enriched cells. Hypoxic culture in G-Rex® increased the proportion of naïve/stem central memory-like cells, suggesting oxygenation is a key factor in T cell differentiation during manufacturing.
Publications
A synthetic cytotoxic T cell platform for rapidly prototyping TCR function
This study introduces the YT-rCTL/KFRET system for rapid TCR functional profiling. YT-Indy based effector cell lines were subcultured in 24-well G-Rex® plates. The platform allows for the recombinant expression of TCRs and antigens to assess cytotoxic responses via a granzyme-activatable reporter.
Publications
Proteasome inhibition enhances the anti-leukemic efficacy of chimeric antigen receptor (CAR) expressing NK cells against acute myeloid leukemia
This study demonstrates that proteasome inhibitors sensitize AML cells to NK cell killing. NK cells were activated by co-culture with irradiated feeder cells in G-Rex® 10 vessels. The combination of bortezomib pre-treatment and CAR-NK infusion significantly delayed tumor growth and prolonged survival in xenograft models.
Publications
IL-2-armored peptide-major histocompatibility class I bispecific antibodies redirect antiviral effector memory CD8+ T cells to induce potent anti-cancer cytotoxic activity with limited cytokine release
This study presents IL-2-armored GPS molecules that selectively expand and redirect CMV-specific CD8+ T cells. Expansion assays were conducted in 6-well and 24-well G-Rex® plates. The approach induced potent cytotoxicity against cancer cells with a reduced cytokine release profile compared to conventional TCEs.
Publications
Placental circulating T cells: a novel, allogeneic CAR- T cell platform with preserved T- cell stemness, more favorable cytokine profile, and durable efficacy compared to adult PBMC- derived CAR- T
This study identifies placental circulating T cells as a superior source for allogeneic CAR-T therapy. T cells were activated and expanded in G-Rex® plates. The resulting CAR-T cells retained stemness markers, exhibited a favorable cytokine profile, and demonstrated durable in vivo efficacy against lymphoma.
Publications
Optimisation of a primary human CAR-NK cell manufacturing pipeline
This study optimizes CAR-NK manufacturing using primary NK cells. Expansion was performed in 48-well G-Rex® plates using irradiated feeder cells. Adult PB-NK cells showed superior yield and cytotoxicity. The protocol achieved high transduction efficiency and scalable expansion suitable for clinical use.
Publications
Generating universal anti-CD19 CAR T cells with a defined memory phenotype by CRISPR/ Cas9 editing and safety evaluation of the transcriptome
This study presents a method to generate universal CAR-T cells with a defined memory phenotype by editing TRAC and B2M genes. Cells were cultured in G-Rex® 24-well plates. The safety of the editing was confirmed via CRISPRroots analysis, and the cells showed effective anti-tumor activity in vitro.
Publications
Perspectives for the Use of Umbilical Cord Blood in Transplantation and Beyond: Initiatives for an Advanced and Sustainable Public Banking Program in Greece
This report describes the operation of Greek public UCB banks. It highlights initiatives to reuse non-transplantable units for cell therapy. Specifically, it details the expansion of immunomagnetically selected CD34+ cells in G-Rex® to differentiate into dendritic cells for generating leukemia-specific T cells.
Publications
Geometric parameters that affect the behavior of logic-gated CAR T cells
This study examines Tmod blocker function targeting non-HLA antigens, finding that blocker efficacy depends on antigen height. Primary human T cells were transduced with Tmod constructs and grown in G-Rex® plates. The findings established geometric design principles to optimize Tmod selectivity and sensitivity.
Publications
Therapeutic Effects of Aβ-Specific Regulatory T Cells in Alzheimer’s Disease: A Study in 5xFAD Mice
This study investigates the therapeutic effects of Aβ-specific Tregs in Alzheimer's disease mice. Purified CD4+CD25+ Tregs were expanded in G-Rex® 24-well plates with CD3/28 MACSiBead particles and IL-2. Adoptive transfer improved cognitive function and reduced Aβ and pTAU accumulation in the hippocampus.