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Broadening the concept of suffering is a less than adequate strategy for respecting patients in advanced dementia.

ABSTRACT:

SUBMITTER: Menzel PT

PROVIDER: S-EPMC10941496 | biostudies-literature | 2024 Jan-Mar

REPOSITORIES: biostudies-literature

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Broadening the concept of suffering is a less than adequate strategy for respecting patients in advanced dementia.

Menzel Paul T PT

Alzheimer's & dementia (Amsterdam, Netherlands) 20240101 1

PMID: 38496713

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Project description:Chimeric antigen receptor-modified T (CAR-T) cells have shown impressive results against relapsed/refractory B cell malignancies. However, the traditional manufacture of CAR-T cells requires leukapheresis to isolate large amounts of peripheral blood T cells, thus making some patients ineligible for the procedure. We developed a simple method for CAR-T cell preparation requiring small volumes of peripheral blood. First, CD3+ T cells isolated from 50 mL peripheral blood from patients (B-cell malignancies) were stimulated with immobilized anti-CD3/RetroNectin in 6-well plates and then transduced with CAR-expressing lentiviral vector. After 4 d, the T cells were transferred to culture bags for large-scale CAR-T cell expansion. In vitro and animal experiments were performed to evaluate the activity of the manufactured CAR-T cells. Finally, 29 patients with B-cell acute lymphoblastic leukemia (B-ALL) and 9 patients with B-cell lymphoma were treated with the CAR-T cells. The CAR-T cells were expanded to 1-3 × 108 cells in 8-10 d and successfully killed B cell-derived malignant tumor cells in vitro and in vivo. For patients with B-ALL, the complete remission rate was 93% 1 month after CAR-T cell infusion; after 12 months, the overall survival (OS) and leukemia-free survival rates were 69% and 31%, respectively. For patients with lymphoma, the objective response rate (including complete and partial remission) was 78% 2 months after CAR-T cell infusion, and after 12 months, the OS and progression-free survival rates were 71% and 43%, respectively. Cytokine-release syndrome (CRS) occurred in 65.51% and 55.56% of patients with B-ALL and B-cell lymphoma, respectively; severe CRS developed in 20.69% of patients with B-ALL and in no patients with lymphoma. Our novel method can generate sufficient numbers of CAR-T cells for clinical use from 50-100 mL peripheral blood, thus providing an alternative means of CAR-T cell generation for patients ineligible for leukapheresis.

Dataset Information

Broadening the concept of suffering is a less than adequate strategy for respecting patients in advanced dementia.

Publications

Broadening the concept of suffering is a less than adequate strategy for respecting patients in advanced dementia.

Similar Datasets

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