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A single-cell and single-nucleus RNA-Seq toolbox for fresh and frozen human tumors

ABSTRACT: A single-cell and single-nucleus RNA-Seq toolbox for fresh and frozen human tumors

PROVIDER: PRJNA609183 | ENA |

REPOSITORIES: ENA

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A single-cell and single-nucleus RNA-Seq toolbox for fresh and frozen human tumors

Project description:Single cell genomics is essential to chart tumor ecosystems. While single cell RNA-Seq (scRNA-Seq) profiles RNA from cells dissociated from fresh tumors, single nucleus RNA-Seq (snRNA-Seq) is needed to profile frozen or hard-to-dissociate tumors. Each requires customization to different tissue and tumor types, posing a barrier to adoption. Here, we developed a systematic toolbox for profiling fresh and frozen clinical tumor samples using scRNA-Seq and snRNA-Seq, respectively. We analyzed 212,498 cells and nuclei from 39 samples across 23 specimens spanning eight tumor types of varying tissue and sample characteristics. We evaluated protocols by cell and nucleus quality, recovery rate, and cellular composition. scRNA-Seq and snRNA-Seq from matched samples recovered the same cell types, but at different proportions. Our work provides guidance for studies in a broad range of tumors, including criteria for testing and selecting methods from the toolbox for other tumors, thus paving the way for charting tumor atlases.

2020-05-11 | GSE140819 | GEO

A single-cell and single-nucleus RNA-Seq toolbox for fresh and frozen human tumors

Project description:A single-cell and single-nucleus RNA-Seq toolbox for fresh and frozen human tumors

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Single Cell RNA Sequencing of Fresh and Frozen Human Atheroma Tissue

Project description:We conducted a comparison of scRNA-seq on four paired fresh and cryopreserved atheroma samples, two from coronary arteries and two from carotid arteries, to determine whether it is possible to obtain comparable data from frozen samples. After enzymatic digestion into single cell suspensions, we sorted CD45+ cells from half of each sample and immediately processed these using the 10X Genomics scRNA-seq workflow after collection, while the other half was frozen in liquid nitrogen. After cryopreservation for an average of 7 days, the other half of each sample was thawed and sorted identically to the fresh samples.

2022-10-31 | GSE179159 | GEO

A single-cell and single-nucleus RNA-Seq toolbox for fresh and frozen human tumors.

Project description:Single-cell genomics is essential to chart tumor ecosystems. Although single-cell RNA-Seq (scRNA-Seq) profiles RNA from cells dissociated from fresh tumors, single-nucleus RNA-Seq (snRNA-Seq) is needed to profile frozen or hard-to-dissociate tumors. Each requires customization to different tissue and tumor types, posing a barrier to adoption. Here, we have developed a systematic toolbox for profiling fresh and frozen clinical tumor samples using scRNA-Seq and snRNA-Seq, respectively. We analyzed 216,490 cells and nuclei from 40 samples across 23 specimens spanning eight tumor types of varying tissue and sample characteristics. We evaluated protocols by cell and nucleus quality, recovery rate and cellular composition. scRNA-Seq and snRNA-Seq from matched samples recovered the same cell types, but at different proportions. Our work provides guidance for studies in a broad range of tumors, including criteria for testing and selecting methods from the toolbox for other tumors, thus paving the way for charting tumor atlases.

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Single Nucleus Sequencing Reveals Artifactual Gene Expression and Variance in Post-Mortem Brain

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