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Expression data from mouse CD19-targeted CAR (chimeric antigen receptor) T cells after antigen stimulation

ABSTRACT: Expression data from mouse CD19-targeted CAR (chimeric antigen receptor) T cells after antigen stimulation

PROVIDER: PRJNA448188 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6921710_1.fastq.gz	Fastqsanger.gz
	SRR6921710_2.fastq.gz	Fastqsanger.gz
	SRR6921702_1.fastq.gz	Fastqsanger.gz
	SRR6921702_2.fastq.gz	Fastqsanger.gz
	SRR6921703_1.fastq.gz	Fastqsanger.gz

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Expression data from mouse CD19-targeted CAR (chimeric antigen receptor) T cells after antigen stimulation [RNA-seq]

Project description:Second-generation CD19-targeted chimeric antigen receptors (CAR) have an antigen-binding domain fused to transmembrane, co-stimulatory, and CD3ζ domains. The two CARs with regulatory approval include a CD28 or 4-1BB co-stimulatory domain. While both CARs achieve similar clinical outcomes, biologic differences between the two endodomains have become apparent but not completely understood. The objective is to evaluate gene expression in different mouse CD19-targeted CAR T cells, including m19z, m1928z and m19-humBBz.

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Expression data from mouse CD19-targeted CAR (chimeric antigen receptor) T cells after antigen stimulation [expression array]

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Project description:In this data set we include expression data from human CD4+ T cells isolated on day 0, 6, 11 and 24 follow anti-CD3/anti-CD28 magnetic bead stimulation and chimeric antigen receptor transduction. 30 samples were submitted. Samples represented three biological replicates of normal donors transduced with various CARs. CARs used were a cMet 28z specific CAR comprised of the IgG4 hinge, CD28 transmembrane and CD28 and CD3zeta intracellular domains. A CD19 CD28 CAR was specific to CD19, and was comprised of a CD8a hinge, CD28 transmembrane and CD28 and CD3zeta intracellular domain. A third CAR, the CD19 BBz, was used that was specific to CD19 was comprised of a CD8a hinge, CD8a transmembrane and 4-1BB and CD3zeta intracellular domains. Expression data was analyzied on day 0, 6, 11 and 24.

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Expression data from mouse CD19-targeted CAR (chimeric antigen receptor) T cells after antigen stimulation [RNA-seq]

Project description:Expression data from mouse CD19-targeted CAR (chimeric antigen receptor) T cells after antigen stimulation [RNA-seq]

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Expression data from mouse CD19-targeted CAR (chimeric antigen receptor) T cells after antigen stimulation [expression array]

Project description:Expression data from mouse CD19-targeted CAR (chimeric antigen receptor) T cells after antigen stimulation [expression array]

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Transfer of antigen target into CAR T cells via trogocytosis

Project description:To characterize transfer of molecules from target cells into CAR T cells via trogocytosis we cultured NALM-6 leukemia cell line expressing a CD19-mCherry fusion protein with CAR T cells. NALM6-CD19-mCherry were loaded with heavy amino acid and cocultured with CAR T cells for 1 hour. CAR T cells were next sorted into two fractions, mCherry-positive (TrogPos), and -negative (TrogNeg). Proteomics analysis revealed the presence of targeted antigen (CD19) in the TrogPos only.

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Expression analysis of chimeric antigen receptor-transduced T cells following antigenic stimulation

Project description:Adoptive transfer of anti-CD19 chimeric antigen receptor (CAR)-engineered T cells has shown impressive clinical responses in patients with refractory B-cell malignancies. However, therapeutic effects of CAR-T cells targeting other hematologic malignancies and solid tumors are not yet satisfactory. Although inefficient tumor trafficking and multiple immunosuppressive molecules impede CAR-T cell effector responses, signals delivered by the current CAR constructs may still be insufficient to fully activate antitumor T cell functions. Optimal T cell activation and proliferation requires multiple signals including T cell receptor (TCR) engagement (signal 1), costimulation (signal 2), and cytokine engagement (signal 3). CAR genes developed to date contain a CD3z domain and costimulatory domain(s), but not a domain to transmit signal 3. In this study, we have developed a novel CAR construct capable of inducing cytokine signaling in an antigen-dependent manner. The new generation CD19 CAR encodes a cytoplasmic domain of IL-2RB and STAT3-binding YXXQ motif together with CD3z and CD28 domains (28-IL2RB-z (YXXQ)). The 28-IL2RB-z (YXXQ) CAR-T cells showed antigen-dependent JAK-STAT, especially the STAT3-mediated pathway activation, which promoted their proliferation and prevented terminal differentiation. The 28-IL2RB-z (YXXQ) CAR-T cells demonstrated superior in vivo persistence and antileukemia effects compared with the currently used CARs in multiple tumor models.

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