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DMSO cryopreservation: the method of choice for droplet-based single-cell RNA sequencing of preserved cells [10X Genomics]

ABSTRACT: DMSO cryopreservation: the method of choice for droplet-based single-cell RNA sequencing of preserved cells [10X Genomics]

PROVIDER: PRJNA524480 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR8646450_1.fastq.gz	Fastqsanger.gz
	SRR8646450_2.fastq.gz	Fastqsanger.gz
	SRR8646460_1.fastq.gz	Fastqsanger.gz
	SRR8646460_2.fastq.gz	Fastqsanger.gz
	SRR8646470_1.fastq.gz	Fastqsanger.gz

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DMSO cryopreservation: the method of choice for droplet-based single-cell RNA sequencing of preserved cells [10X Genomics]

Project description:Recently, combining single-cell RNA sequencing (scRNA-seq) with upstream cell preservation procedures such as cryopreservation or methanol fixation has become more common. By separating cell handling and preparation, from downstream library generation, scRNA-seq workflows are more flexible and manageable. However, the inherent transcriptomics changes associated with cell preservation and how they may bias further downstream analysis remain unknown. Here, we present a side-by-side droplet-based scRNA-seq analysis, comparing the gold standard – fresh cells – to three different cell preservation workflows: dimethyl sulfoxide based cryopreservation, methanol fixation and CellCover reagent. Cryopreservation proved to be the most robust protocol, maximizing both cell integrity and low background ambient RNA. Importantly, gene expression profiles from fresh cells correlated most with those of cryopreserved cells. Such similarities were consistently observed across the tested cell lines (R ≥ 0.97), monocyte-derived macrophages (R = 0.97) and immune cells (R = 0.99). In contrast, both methanol fixation and CellCover preservation showed an increased ambient RNA background and an overall lower gene expression correlation to fresh cells. Thus, our results demonstrate the superiority of cryopreservation over other cell preservation methods. We expect our comparative study to provide single cell omics researchers invaluable support when integrating cell preservation into their scRNA-seq studies.

2019-07-25 | GSE127248 | GEO

DMSO cryopreservation: the method of choice for droplet-based single-cell RNA sequencing of preserved cells

Project description:DMSO cryopreservation: the method of choice for droplet-based single-cell RNA sequencing of preserved cells

| PRJNA524478 | ENA

DMSO cryopreservation: the method of choice for droplet-based single-cell RNA sequencing of preserved cells [Drop-Seq]

Project description:DMSO cryopreservation: the method of choice for droplet-based single-cell RNA sequencing of preserved cells [Drop-Seq]

| PRJNA524475 | ENA

DMSO cryopreservation: the method of choice for droplet-based single-cell RNA sequencing of preserved cells [Drop-Seq]

2019-07-25 | GSE127246 | GEO

DMSO cryopreservation: the method of choice for droplet-based single-cell RNA sequencing of preserved cells

Project description:This SuperSeries is composed of the SubSeries listed below.

2019-07-25 | GSE127249 | GEO

DMSO cryopreservation is the method of choice to preserve cells for droplet-based single-cell RNA sequencing.

Project description:Combining single-cell RNA sequencing (scRNA-seq) with upstream cell preservation procedures such as cryopreservation or methanol fixation has recently become more common. By separating cell handling and preparation, from downstream library generation, scRNA-seq workflows are more flexible and manageable. However, the inherent transcriptomic changes associated with cell preservation and how they may bias further downstream analysis remain unknown. Here, we present a side-by-side droplet-based scRNA-seq analysis, comparing the gold standard - fresh cells - to three different cell preservation workflows: dimethyl sulfoxide based cryopreservation, methanol fixation and CellCover reagent. Cryopreservation proved to be the most robust protocol, maximizing both cell integrity and low background ambient RNA. Importantly, gene expression profiles from fresh cells correlated most with those of cryopreserved cells. Such similarities were consistently observed across the tested cell lines (R ≥ 0.97), monocyte-derived macrophages (R = 0.97) and immune cells (R = 0.99). In contrast, both methanol fixation and CellCover preservation showed an increased ambient RNA background and an overall lower gene expression correlation to fresh cells. Thus, our results demonstrate the superiority of cryopreservation over other cell preservation methods. We expect our comparative study to provide single-cell omics researchers invaluable support when integrating cell preservation into their scRNA-seq studies.

| S-EPMC6650608 | biostudies-literature

Methanol fixation is the method of choice for droplet-based single-cell transcriptomics of neural cells

Project description:Single-cell transcriptomics methods have become very popular to study the cellular composition of organs and tissues and characterize the expression profiles of the individual cells that compose them. The main critical step for single-cell transcriptomics methods is sample preparation. Several methods have been developed to preserve cells after sample dissociation to uncouple sample handling from library preparation. Yet, the suitability of these methods depends on the types of cells to be processed. In this project, we perform a systematic comparison of preservation methods for droplet-based single-cell RNA-seq (scRNA-seq) on human neural progenitor cell populations derived from induced pluripotent stem cells (iPSCs) and highlight their strengths and weaknesses. We compared the cellular composition and expression profile of single-cell suspensions from fresh NPCs with that of NPCs preserved with Dimethyl Sulfoxide (DMSO), Methanol, vivoPHIX and Acetil-methanol (ACME). Our results show that while DMSO provides the highest cell quality in terms of RNA molecules and genes detected per cell. Yet, it strongly affects the cellular composition and the expression profile of the resulting datasets. In contrast, methanol fixed samples display a cellular composition like that of fresh samples while providing a good cell quality and smaller expression biases. Taken together, our results show that methanol fixation is the method of choice for performing droplet-based single-cell transcriptomics experiments on neural cell populations.

2023-05-15 | GSE209947 | GEO

DMSO-free chemically defined cryopreservation of human mesenchymal stem cells and chondrocytes

Project description:Serum- and xeno-free cryopreservation is suitable for cells to be used in clinical applications. However, dimethyl sulfoxide (DMSO), which is often used in conventional cryoprotectant medium, has been shown to be toxic to many cell types and can induce morphological and gene expression changes that can lead to changes in cell function when they are cultured. In order to evaluate this issue in depth, we examined the efficiency of a DMSO-free/serum-free/xeno-free chemically defined cryoprotectant media, STEM-CELLBANKER DMSO-Free, when culturing human mesenchymal stem cells (MSCs) and chondrocytes. Interestingly, the cells cryopreserved in STEM-CELLBANKER DMSO-Free had a similar growth rate, morphology, and global gene expression profile compared to that observed for cells preserved in conventional freezing medium, which contains 10% DMSO and 20% fetal bovine serum. From these data, we therefore propose that STEM-CELLBANKER DMSO-Free may be an effective tool for maintaining the cellular characteristics of MSCs and chondrocytes during cryo-storage prior to clinical application.

2019-03-22 | GSE79496 | GEO

Cryopreservation effects on peripheral blood

Project description:This SuperSeries is composed of the following subset Series: GSE24753: Genome-wide analysis of the effect of cryopreservation on peripheral blood mononuclear cells GSE24755: Genome-wide analysis of the effect of long-term cryopreservation on peripheral blood mononuclear cells GSE24757: Genome-wide analysis of the effect of long-term freezing of PAXgene Blood RNA tubes Refer to individual Series

2011-07-21 | E-GEOD-24758 | biostudies-arrayexpress

Methanol fixation is the method of choice for droplet-based single-cell transcriptomics of neural cells

Project description:Methanol fixation is the method of choice for droplet-based single-cell transcriptomics of neural cells

| PRJNA863130 | ENA