Knowledge HQ

Publications

Defining novel parameters for the optimal priming and expansion of minor histocompatibility antigen-specific T cells in culture

This paper establishes a clinical-compliant protocol to generate MiHA-specific T-cell lines. The priming phase utilized G-Rex10 to maximize cell expansion and DC-T cell interactions starting from limited PBMCs, followed by a rapid expansion protocol.
Download Now
Publications

Therapeutic bispecific T-cell engager antibody targeting the intracellular oncoprotein WT1

This study describes a BiTE derived from a TCR-mimic antibody against WT1. It induced T-cell cytotoxicity against WT1+ tumors and epitope spreading. Transduced EBV-specific T lymphocytes used in in vivo tracking studies were cultured in G-Rex.
Download Now
Publications

Coordinate regulation of residual bone marrow function by paracrine trafficking of AML exosomes

The study demonstrates that AML exosomes suppress hematopoiesis by altering stromal cells and progenitors. To model physiological hypoxia, AML cells were cultured in G-Rex in a low-oxygen chamber, which increased exosome release compared to normoxia.
Download Now
Publications

Cancer Immunotherapy Based on Mutation-Specific CD4+ T Cells in a Patient with Epithelial Cancer

This study demonstrates that the immune system can mount a mutation-specific Th1 response against epithelial cancer. Adoptive transfer of enriched mutation-specific CD4+ TILs led to tumor regression. The provided excerpts do not explicitly mention the use of G-Rex devices.
Download Now
Publications

Go-CART: an animal-free system for the assessment of CAR T cell function

The authors developed Go-CART, a six-chambered device to assess CAR T cell function without animals. The device features a gas-permeable base, allowing prolonged T cell-tumor interaction (>2 weeks) without medium replenishment, similar to G-Rex technology (co-author John Wilson is from Wilson Wolf).
Download Now
Publications

Anti-leukemic potency of piggyBac-mediated CD19-specific T cells against refractory Philadelphia chromosome–positive acute lymphoblastic leukemia

This study generated CD19-specific CAR T cells using the piggyBac transposon system and expanded them in G-Rex 10 devices under serum-free conditions. This protocol produced clinically relevant numbers of CAR T cells that were effective against TKI-resistant Ph+ ALL cells.
Download Now
Publications

Adoptive transfer of rapidly-generated multivirus-specific T cells to treat Adv, EBV, CMV, BK and HHV6 infections of HSCT recipients

This abstract reports the clinical use of rapidly generated pentavalent virus-specific T cells expanded in G-Rex devices. The single-stimulation G-Rex protocol produced sufficient cells in 10 days to safely and effectively treat drug-refractory EBV, CMV, Adv, BK, and HHV6 infections in HSCT patients.
Download Now
Publications

Interleukin-7 mediates selective expansion of tumor-redirected cytotoxic T lymphocytes without enhancement of regulatory T-cell inhibition

This study demonstrates that CAR-redirected EBV-CTLs engineered to express IL-7Ra can be selectively expanded by IL-7 in the presence of Tregs. G-Rex were used to generate the expanded Tregs used in the suppression assays. This strategy enhances antitumor activity.
Download Now
Publications

Towards immunotherapy with redirected T cells in a large animal model: Ex vivo activation, expansion, and genetic modification of canine T cells

This study developed a protocol for generating canine CAR T cells targeting HER2. G-Rex culture devices were used to expand the activated canine T cells, achieving approximately 100-fold expansion in 8 days. The cells demonstrated antigen-specific cytotoxicity against canine osteosarcoma.
Download Now
Publications

Expansion and Homing of Adoptively Transferred Human NK Cells in Immunodeficient Mice Varies with Product Preparation and In Vivo Cytokine Administration: Implications for Clinical Therapy

This study compared fresh activated NK cells vs. ex vivo expanded NK cells (Ex-NK) produced in G-Rex devices. Ex-NK cells showed distinct homing to bone marrow and higher cytokine dependence (IL-15) compared to fresh cells. The study highlights how manufacturing methods influence in vivo behavior.
Download Now
Publications

Clinical Grade Purification and Expansion of Natural Killer Cells

This review discusses methods for clinical-grade NK cell expansion. It highlights the optimization of NK cell expansion in G-Rex using K562-mbIL15-41BBL feeder cells, achieving high yields (up to 5x10^8 cells per G-Rex100) with reduced handling compared to bags.
Download Now
Publications

Reversal of Tumor Immune Inhibition Using a Chimeric Cytokine Receptor

This study engineered EBV-specific T cells with a chimeric IL4/7 receptor to convert inhibitory IL4 signals into stimulatory IL7 signals. G-Rex were utilized to maintain the EBV-LCL feeder cells used for T cell stimulation. The modified cells showed enhanced antitumor activity in IL4-rich environments.
Download Now