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Therapeutic immune cell engineering with an mRNA : AAV-Sleeping Beauty composite system [Splinkerette]

ABSTRACT: We evaluated the insertion site profile of the MAJESTIC (mRNA : AAV-Sleeping Beauty) CAR generation method.

ORGANISM(S): Homo sapiens

PROVIDER: GSE220202 | GEO | 2023/05/18

REPOSITORIES: GEO

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Therapeutic immune cell engineering with an mRNA : AAV-Sleeping Beauty composite system [Splinkerette]

Project description:Therapeutic immune cell engineering with an mRNA : AAV-Sleeping Beauty composite system [Splinkerette]

| PRJNA909226 | ENA

Sleeping Beauty Expression data from mouse

Project description:We extracted RNA of 39 mouse tissue of various genotypes and performed expression microarrays. Subsequently a screen was conducted using the Sleeping Beauty (SB) transposon to identify breast cancer candidate genes. 39 mouse samples expression data.

2016-07-03 | E-GEOD-43263 | biostudies-arrayexpress

Sleeping Beauty Expression data from mouse

2016-01-01 | GSE43263 | GEO

FIRST PHASE I TRIALS OF SLEEPING BEAUTY-MODIFIED CD19-SPECIFIC T CELLS

Project description:Background: T cells expressing antigen-specific chimeric antigen receptors (CARs) improve outcomes for CD19-expressing B-cell malignancies. We provide the first human application of T cells genetically modified using the Sleeping Beauty (SB) transposon/transposase system to express a CD19-specific CAR. Methods: T cells were genetically modified using DNA plasmids from the SB platform to stably express a second-generation CD19-specific CAR and selectively propagated ex vivo with activating and propagating cells (AaPC) and cytokines. Twenty-six patients with advanced NHL and ALL safely underwent hematopoietic stem-cell transplantation (HSCT) and infusion of CAR T cells as adjuvant therapy in the autologous (n=7) or allogeneic settings (n=19). Results: SB-mediated genetic transposition and stimulation resulted in 2,200-2,500-fold ex vivo genetically modified T-cell expansion, with 84% CAR expression, and without integration hotspots. The 30-month progression-free and overall survivals were 83% and 100%, respectively, following autologous HSCT, and the respective 12-month rates after allogeneic HSCT were 53% and 63%. No acute or late toxicities and no exacerbation of graft-versus-host-disease were observed. Despite a low antigen burden and unsupportive recipient cytokine environment, CAR T cells persisted for an average of 201 days for autologous and 51 days for allogeneic recipients. Conclusions: CD19-specific CAR T cells generated with SB and AaPC platforms were safe, and may provide additional cancer control as planned infusions after HSCT, supporting further clinical development of this non-viral gene therapy approach.

2016-06-08 | GSE83076 | GEO

Sleeping Beauty transposon mutagenesis in mouse intestinal organoids identifies genes involved in tumor progression and metastasis [Atxn1]

Project description:To identify genes important for colorectal cancer (CRC) development and metastasis, we established a new metastatic mouse organoid model using Sleeping Beauty (SB) transposon mutagenesis. Intestinal organoids derived from mice carrying actively mobilizing SB transposons, an activating KrasG12D, and an inactivating ApcΔ716 allele, were transplanted to immunodeficient mice. Analysis of SB insertion sites in tumors identified numerous candidate cancer genes (CCGs) identified previously in intestinal SB screens performed in vivo, in addition to new CCGs, such as Atxn1. To provide functional validation, we knocked out Atxn1 in mouse tumor organoids carrying an activating KrasG12D, and an inactivating ApcΔ716 allele, and transplanted to mice. Tumor development was promoted when these gene were knocked out, demonstrating that these are potent tumor suppressors.

2023-11-27 | GSE248668 | GEO

Identification of genes involved in SHH subgroup medulloblastoma using murine whole-body Sleeping Beauty insertional mutagenesis

2013-07-09 | GSE43994 | GEO

Identification of genes involved in SHH subgroup medulloblastoma using murine whole-body Sleeping Beauty insertional mutagenesis

Project description:Ptch+/- mice, which are predisposed to SHH subgroup medulloblastoma, were mutagenised using the Sleeping Beauty transposon to identify genes which increase the frequency of medulloblastoma formation. Gene expression in tumours was assessed both to investigate their relationship to human subgroup tumours, and to identify genes where expression was altered by mutagenesis. Total RNA isolated from tumours induced by SB mutagenesis were compared to normal cerebellum, tumours induced witout SB mutagenesis, and tumours from a distinct model of disease (GTML).

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Long-Term Follow-up Study of Subjects Treated With Autologous T Cells Using the Sleeping Beauty System to Express TCRs

Project description:Long-Term Follow-Up Study for Subjects Enrolled in the Phase I/II Study of Autologous T Cells Engineered using the Sleeping Beauty System to Express T cell Receptors (TCRs) Reactive Against Cancer-specific Mutations in Subjects with Solid Tumors

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Project description:A Sleeping Beauty (SB) transposon forward genetic screen was performed to identify the genes that promote osteosarcoma (OS) development and metastasis. Mutagenesis induced OS in wild type mice and accelerated it on a Trp53 deficient background. Analysis of tumors demonstrated that Trp53 deficiency is correlated with genomic instability, which was virtually absent in tumors induced by SB mutagenesis alone. Metastases developed in a subset of animals and in nearly all cases were clonal related to primary tumors. Over 200 candidate genes were identified, many of which are altered in human cancers including OS. Signaling pathways enriched for candidate genes were also identified and a subset of these pathways and genes were functionally validated and represent new targets for OS treatment. Bisulphite converted DNA from the 21 diagnosis osteosarcoma patients and 3 hOB cell line replicates were hybridised to the Illumina Infinium 450K Human Methylation Beadchip.

2015-04-07 | E-GEOD-58770 | biostudies-arrayexpress

RNA -sequencing of high grade glioma (HGG) mouse cells encoding for H3.3-G34R vs H3.3-WT histones, derived from a Sleeping beauty based-genetically engineered mouse model

Project description:RNA-sequencing of H3.3-G34R and H3.3-WT HGG cells was performed to uncover transcriptomic differences related to the presence of H3.3-G34R mutation in a pediatric high grade glioma model, using a Sleeping beauty derived genetically engenieered mouse model.

2022-01-01 | GSE182069 | GEO

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