MiRNA sequencing using Jurkat and JinB8 T cell line (CD47-deficient) and their Extracellular vesicles (EVs)
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA706416 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13849723.fastq.gz | Fastqsanger.gz | |||
| SRR13849724.fastq.gz | Fastqsanger.gz | |||
| SRR13849725.fastq.gz | Fastqsanger.gz | |||
| SRR13849726.fastq.gz | Fastqsanger.gz | |||
| SRR13849727.fastq.gz | Fastqsanger.gz |
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Project description:Extracellular vesicles (EVs) mediate cell-cell communication including the intercellular transfer of miRNAs, which alter gene expression in target cells. Previously, we have shown that CD47 is also present on EVs and alters their effects on target cells, suggesting that specific surface markers define functionally distinct EVs. This hypothesis will be addressed by comparing total cellular versus EVs miRNA contents between Jurkat and JinB8 (CD47 deficient) T cells. The Jurkat T cell line (E6.1) was purchased from ATCC. The cells were maintained using RPMI 1640 containing 10% FBS, glutamine, penicillin, and streptomycin (Gibco). The Jurkat and JinB8 T cells used for experiments were maintained less than 6 weeks in culture. The cultured Jurkat were washed with IXPBs followed by a second wash with HITES medium (DMEM/F12 supplemented with, bovine serum albumin, hydrocortisone, insulin, transferrin, and trace elements). EVs were isolated from Jurkat T cells were cultured overnight using HITES medium. The conditioned media from Jurkat T cells were collected, and cell debris were removed using centrifugation at 300 g for 5 minutes and 2500 g for 10 minutes respectively. Centrifuged media were concentrated using Ultra-4 centrifugal filters to about 1 ml volume and further centrifuged at 10,000 g for 10 minutes. EVs were isolated using an Exo-Quick kit (SBI). miRNaseazy (Qiagen) kits were used to extract total RNA from Jurkat and JinB8 T cells and their EVs according to the manufacturer's instructions.
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Project description:Intercellular communication is critical for integrating complex signals in multicellular eukaryotes. Vascular endothelial cells and T lymphocytes closely interact during the recirculation and trans-endothelial migration of T cells. In addition to direct cell-cell contact, we show that T cell derived extracellular vesicles can interact with endothelial cells and modulate their cellular functions. Thrombospondin-1 and its receptor CD47 are expressed on exosomes/ectosomes derived from T cells, and these extracellular vesicles are internalized and modulate signaling in both T cells and endothelial cells. Extracellular vesicles released from cells expressing or lacking CD47 differentially regulate activation of T cells induced by engaging the T cell receptor. Similarly, T cell-derived extracellular vesicles modulate endothelial cell responses to vascular endothelial growth factor and tube formation in a CD47-dependent manner. Uptake of T cell derived extracellular vesicles by recipient endothelial cells globally alters gene expression in a CD47-dependent manner. CD47 also regulates the mRNA content of extracellular vesicles in a manner consistent with some of the resulting alterations in target endothelial cell gene expression. Therefore, the thrombospondin-1 receptor CD47 directly or indirectly regulates intercellular communication mediated by the transfer of extracellular vesicles between vascular cells. HuVEC cells were cocultured with exosomes derived either from Jurkat or JinB8 cells culture media. Each condition was done in triplicate. Also, Exosome RNA from Jurkat or JINB8 cells were compared to each other in triplicate.
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Project description:xtracellular vesicles (EVs) mediate cell-cell communication including the intercellular transfer of RNAs, which alter gene expression in target cells. However, heterogeneity in the size, density, and composition of EVs has limited progress towards defining their physiological functions and utility as disease-specific biomarkers. CD63 and MHC-1 are widely used as markers to purify EVs. CD47 is also present on EVs and alters their effects on target cells, suggesting that specific surface markers define functionally distinct EVs. This hypothesis was addressed by comparing the properties of Jurkat T cell EVs captured using CD47, CD63, and MHC-1 antibodies. These EV subsets have similar sizes but divergent RNA contents.
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Project description:CD47 is a marker of self and a signaling receptor for thrombospondin-1 that is also a membrane
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