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ABSTRACT: HFSCs with the treatment of DPC-Exos

PROVIDER: PRJNA907926 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22512937_1.fastq.gz	Fastqsanger.gz
	SRR22512937_2.fastq.gz	Fastqsanger.gz
	SRR22512938_1.fastq.gz	Fastqsanger.gz
	SRR22512938_2.fastq.gz	Fastqsanger.gz
	SRR22512939_1.fastq.gz	Fastqsanger.gz

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Project description:Small RNA sequencing of the decorin treatment DPC-exos (DCN-exos) and the control DPC-exos (Control-exos)

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High-throughput sequencing of extracellular vesicles from human dermal papilla cells

Project description:The use of dermal papilla cells for hair follicle (HF) regeneration is long accepted much attention. However, cultured dermal papilla cells tend to lose the hair-inducible capability during passaging, which restricts its application. Increasing evidences indicate that dermal papilla cells exert their regulatory function of HF growth mainly through their unique paracrine properties, opening up a way to exosome therapies.This study aimed to explore the effects of exosomes from high and low-passaged human scalp follicle dermal papilla cells (DP-Exos) on hair follicle stem cells (HFSCs) activation and hair growth, and to investigate the underline mechanism. DP-Exos were isolated by ultracentrifugation and cultured with human scalp follicles and HFSCs. The hair elongation and cell proliferation was assessed. Quantitative real-time PCR (qRT-PCR) and Western-blot were performed to detect the expression levels of a class of miRNAs and proteins which have positive roles in regulating hair growth and HFSCs proliferation. High throughput miRNA sequencing of miRNAs in high (P8) and low-passaged (P3) DP-Exos was performed, and the utmost miRNA and its target gene was identified via bioinformatics analysis.

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Exosomes from mesenchymal stromal cells reduce murine colonic inflammation via a macrophage-dependent mechanism

Project description:Conventional treatments for inflammatory bowel disease (IBD) have multiple potential side effects. Therefore, alternative treatments are desperately needed. In the present study, we proposed a new therapeutic tool for the treatment of IBD in murine pre-clinical models by using MSC-Exos. We demonstrated that the infused MSC-Exos are immunotolerated by the host, which is convenient for a future clinical application of MSC-Exos in IBD. To understand the molecular basis mediating the anticolitic benefit of MSC-Exos, we performed proteomic analysis using iTRAQ technology to detect the protein expression profiles in MSC-Exos and the corresponding supernatants from their parent cell MSCs. Proteomic analysis revealed that MSC-Exos were enriched in proteins involved in regulating multiple biological processes associated with the anti-colitic benefit of MSC-Exos. Particularly, metallothionein-2 in MSC-Exos was required for the suppression of inflammatory responses in macrophages. Taken together, MSC-Exos are critical regulators of inflammatory responses and may be promising candidates for IBD treatment.

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MicroRNA and protein cargos of human limbal epithelial cell-derived exosomes and their regulatory roles in limbal stromal cells of diabetic and non-diabetic cornea

Project description:Epithelial and stromal/mesenchymal limbal stem cells contribute to corneal homeostasis and cell renewal. Extracellular vesicles (EVs), including exosomes (Exos), can be paracrine mediators of intercellular communication. Previously, we described cargos and regulatory roles of limbal stromal cell (LSC)-derived Exos in non-diabetic (N) and diabetic (DM) limbal epithelial cells (LEC). Presently, we quantify the miRNA and proteome profiles of human LEC-derived Exos and their regulatory roles in N- and DM-LSC. We revealed some miRNA and protein differences in DM vs. N-LEC-derived Exos' cargos including proteins involved in Exo biogenesis and packaging that may affect Exo production and ultimately cellular crosstalk and corneal function. Treatment by N-Exos, but not by DM-Exos enhanced wound healing in cultured N-LSC and increased proliferation rate in N and DM LSCs vs. corresponding untreated (control) cells. N-Exos treated LSC reduced keratocyte markers ALDH3A1 and lumican, and increased MSC markers CD73, CD90 and CD105 vs. control LSC. These being opposite to the changes quantified in wounded LSCs. Overall, N-LEC Exos have a more pronounced effect on LSC wound healing, proliferation, and stem cell marker expression than DM-LEC Exos. This suggests that regulatory miRNA and protein cargo differences in DM- vs. N-LEC-derived Exos could contribute to the disease state.

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Project description:We detected and compared the miRNAs contained in Y-PRP-exos or O-PRP-exos. The results showed that most miRNAs (38) can be identified in both Y-PRP-exos and O-PRP-exos. In addition, hsa-let-7f-5p, hsa-miR-16-5p and hsa-miR-126-3p were top 3 enriched miRNAs in PRP-exos of all donors. These results indicated the heterogeneity of miRNAs in PRP-exos was small, regardless of age. However, the abundance of miRNAs in Y-PRP-exos and O-PRP-exos was quite different, especially in high-ranking miRNAs. The expression of hsa-miR-16-5p and has-let-7f-5p in O-PRP-exos in two old donors was only approximately 1/4-1/2 of that in Y-PRP-exos in two young donors

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SOX9: a Stem Cell Transcriptional Regulator of Secreted Niche Signaling Factors

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