Gene Expression Nebulas
基于标准化流程分析的转录图谱综合数据库

Gene Expression Nebulas

多物种转录图谱整合数据库

PRJNA437966: Single-Cell RNA-Seq Reveals Transcriptional Heterogeneity in Latent and Reactivated HIV-infected Cells

来源: NCBI / GSE111727
提交时间: Mar 12 2018
释放时间: Mar 13 2018
最后更新时间: Mar 27 2019

概要: Despite effective treatment, HIV can persist in latent reservoirs, which represent a major obstacle towards HIV eradication. Targeting and reactivating latent cells is challenging due to the heterogeneous nature of HIV infected cells. Here, we used a primary model of HIV latency and single-cell RNA sequencing to characterize transcriptional heterogeneity during HIV latency and reactivation. Our analysis identified transcriptional programs leading to successful reactivation of HIV expression. We further validated our results using primary CD4+ T cells isolated from HIV+ individuals.

项目整体设计: Human primary CD4+ T-cells were infected, cultured, and maintained in a resting, latent phenotype in order to generate a primary model of HIV latency. Latently infected cells were either left untreated, or exposed to SAHA or TCR stimulation, followed by single-cell isolation and single-cell RNA-seq (scRNA-Seq) analysis. Bulk RNA-Seq experiments were also performed as control. To validate the observed cellular heterogeneity in the primary model of HIV latency, we used primary CD4+ T cells isolated from HIV+ individuals. As for the primary HIV latency model, resting cells from HIV+ individuals were either not treated or TCR-treated before single cell isolation and single-cell RNA-Seq.

GEN 数据集:
GEND000048
测序方法:
物种:
健康状况:
细胞类型:
方案
生长方案: For the latency model, CD4+ T cells were purified from the buffy coat of uninfected donors by Ficoll gradient separation followed by negative selection and magnetic separation using the human CD4+ T Cell enrichment kit (Stem Cell Technologies #17952). Then the cells were resuspended at 106 cells/ml in Activation Medium (Immunocult XF T cell expansion medium (Stem Cell Technologies #10981) supplemented with 100 U/ml IL-2 (RD #202-IL) and 25 l/ml of ImmunoCult_ Human CD3/CD28 T Cell Activator (Stem Cell Technologies #10971)). Three days post-TCR activation, cells (2 mio) were transduced with 1.2x105 TU of HIVGFP/VSV-G in presence of 5 g/ml polybrene by spinoculation (3h, 1500g, 25C). Cells were then washed with RPMI-1640 supplemented with 10% heat i-ctivated fetal calf serum (RNA10) and resuspended in 4 ml Expansion Medium (Immunocult XF T cell expansion medium supplemented with 100 U/ml IL-2). After three days, cells were washed, resuspended in RPMI without phenol red and sorted by FACS based on GFP expression. Infected GFP+ cells were resuspended in 0.5 ml Activation Medium and then maintained in Expansion Medium at 106 cells/ml for ~2.5 weeks. Cells were stimulated once again in Activation Medium and maintained in Expansion Medium for further 2.5 weeks. Cells were then allowed to revert to a resting phenotype by long-term culture in Latency Medium (50% RNA10/50% H80 feeder cell supeRNAtant supplemented with 40 U/ml IL-2) for 8 weeks. In parallel, blood was collected from two HIV-infected individuals participating in the Swiss HIV Cohort Study (http://www.shcs.ch), that were on antiretroviral therapy for more than 3 years, with undetectable viremia and a CD4 cell count above 300 for more than one year. Blood (~25 ml) was directly collected in 4 CPT tubes (BD Vacutainer CPT; BD Biosciences #362753) and processed for peripheral blood mononuclear cells (PBMC) isolation according to manufacturer__ instructions. Resting CD4+ T cells were purified by negative selection and magnetic separation using the human CD4+ T Cell enrichment kit supplemented with anti-HLA-DR, anti-CD25 and anti-CD69 (Stem Cell Technologies #19052/#17962), and resuspended in RNA10 (0.45 m filtered).
处理方案: Human primary CD4+ T-cells were infected, cultured, and maintained in a resting, latent phenotype in order to generate a primary model of HIV latency. Latently infected cells were either left untreated; Human primary CD4+ T-cells were infected, cultured, and maintained in a resting, latent phenotype in order to generate a primary model of HIV latency. Latently infected cells were exposed to SAHA stimulation; Human primary CD4+ T-cells were infected, cultured, and maintained in a resting, latent phenotype in order to generate a primary model of HIV latency. Latently infected cells were exposed to TCR stimulation
提取方案: Cells were washed and collected for bulk or single-cell RNA-Seq. On one hand, cells (1 mio) were resuspended in 400 l lysis buffer of the ZRNADuet DNA/RNA miniprep (Zymo Research #D7001) and processed for RNA extraction according to manufacturer__ instructions, and used for bulk RNA-Seq (Illumina HiSeq Ribo-Zero TruSeq str RNA-Seq). On the other hand, cells were resuspended at 0.5-1x106 cells/ml in RNA10 (0.45 m filtered) and processed for single cell isolation and cDNA synthesis on a small 5-10 m fluidigm plate (fluidigm C1 Single Cell AutoPrep System, Clontech SMARTer Ultra Low RNA kit for Illumina sequencing), followed by single-cell RNA-Seq (Illumina Nextera XT DNA Sample Preparation).
建库方案: -
测序信息
分子类型: poly(A)+ RNA
库的片段类型: SINGLE
库的链类型: -; Forward
测序平台: ILLUMINA
测序仪型号: Illumina HiSeq 2500
链特异性: Unspecific; Specific
样本
基本信息:
样本描述:
生物条件:
实验变量:
方案:
测序信息:
质量评估:
数据来源 GEN样本编号 GEN数据集编号 系列编号 项目编号 样本编号 样本名称 生物样本编号 样本访问号 实验访问号 释放时间 提交时间 最后更新时间 物种 种族 族裔 年龄 年龄单位 性别 来源名称 组织 细胞类型 细胞亚型 细胞系 疾病 疾病状态 发育阶段 突变/变异 表型 Condition Detail 生长方案 处理方案 提取方案 建库方案 分子类型 库的片段类型 链特异性 库的链类型 加标(Spike-In) 测序方法 测序平台 测序仪型号 细胞数 测序片段数 碱基数 平均测序片段长度_1 平均测序片段长度_2 唯一比对率 多重比对率 覆盖度
文章
Single-Cell RNA-Seq Reveals Transcriptional Heterogeneity in Latent and Reactivated HIV-Infected Cells.
Cell reports . 2018-04-01 [PMID: 29694901]