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Sepax 2rm device

Manufactured by Cytiva

The Sepax 2RM device is a closed, automated cell processing system designed for cell separation and washing applications. It provides a controlled environment for the processing of cell-based therapies and other biological materials. The device features pre-programmed protocols and enables the efficient and reproducible processing of cell samples.

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2 protocols using sepax 2rm device

1

Anti-B7-H3 CAR-T Cell Production

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CD4+ and CD8+ T cells were isolated from patient apheresis products using the CliniMACS device (Miltenyi Biotec). A 1:1 mixture of CD4-enriched and CD8-enriched cell fractions were then pooled, suspended in X-Vivo 15 (Lonza) media supplemented with 2% KnockOut SR (Life Technologies), 5 ng/mL rhIL-7 (CellGenix), 0.5 ng/mL rhIL-15 (CellGenix) and 10 ng/mL rhIL-21 (Miltenyi Biotec), initiated into culture in a G-Rex 100MCS vessel (Wilson-Wolf), and stimulated using CD3/CD28 CTS® Dynabeads (Life Technologies). Cell products were then transduced with a GMP-grade SIN (self-inactivating) lentivirus encoding the anti-B7-H3CAR, the methotrexate-resistant human DHFR mutein huDHFRdm, and the cell-surface marker EGFRt. On day 3 of culture, 50nM methotrexate (Mylan) was added to the culture vessel to select for cells possessing DHFRdm. On day 7 of culture, CD3/CD28 CTS® beads were removed from the cell suspension using the Dynamag CTS device. Following 10–13 days in culture, patient cells were harvested and washed using the Sepax 2RM device (Cytiva) and resuspended in CryoStor-CS5 (Biolife Solutions) for cryopreservation in CellSeal closed-system vials (Sexton).
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2

Engineered Antigen-Specific T Cell Therapy

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CD4+ and CD8+ T cells were isolated from patient apheresis products using the CliniMACS device (Miltenyi Biotec). A 1:1 mixture of CD4-enriched and CD8-enriched cell fractions were then pooled, suspended in X-Vivo 15 (Lonza) media supplemented with 2% KnockOut SR (Life Technologies), 5 ng/mL rhIL7 (CellGenix), 0.5 ng/mL rhIL15 (CellGenix), and 10 ng/mL rhIL-21 (Miltenyi Biotec), initiated into culture in a G-Rex 100MCS vessel (Wilson-Wolf), and stimulated using CD3/CD28 CTS Dynabeads (Life Technologies). Cell products were then transduced with a GMP-grade SIN (self-inactivating) lentivirus encoding the anti-B7-H3 CAR, the MTX-resistant human DHFR mutein huDHFRdm, and the cell-surface marker EGFRt. On day 3 of culture, 50 nmol/L MTX (Mylan) was added to the culture vessel to select for cells possessing DHFRdm. On day 7 of culture, CD3/CD28 CTS beads were removed from the cell suspension using the Dynamag CTS device. Following 10 to 13 days in culture, patient cells were harvested and washed using the Sepax 2RM device (Cytiva) and resuspended in CryoStor-CS5 (Biolife Solutions) for cryopreservation in CellSeal closed-system vials (Sexton).
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