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

PRJNA674755: Age-determined expression of priming protease TMPRSS2 and localization of SARS-CoV-2 in lung epithelium

来源: NCBI / GSE160876
提交时间: Nov 05 2020
释放时间: Nov 13 2020
最后更新时间: Nov 15 2020

概要: The SARS-CoV-2 novel coronavirus global pandemic (COVID-19) has led to millions of cases and hundreds of thousands of deaths globally. While older adults appear at high risk for severe disease, hospitalizations and deaths due to SARS-CoV-2 among children have been relatively rare. Integrating single-cell RNA sequencing (scRNA-seq) of developing mouse lung with temporally-resolved immunofluorescence in mouse and human lung tissue, we found expression of SARS-CoV-2 Spike protein primer TMPRSS2 was highest in ciliated cells and type I alveolar epithelial cells (AT1), and TMPRSS2 expression increased with aging in mice and humans. Analysis of autopsy tissue from fatal COVID-19 cases detected SARS-CoV-2 RNA most frequently in ciliated and secretory cells in airway epithelium and AT1 cells in peripheral lung. SARS-CoV-2 RNA was highly colocalized in cells expressing TMPRSS2. Together, these data demonstrate the cellular spectrum infected by SARS-CoV-2 in lung epithelium and suggest that developmental regulation of TMPRSS2 may underlie the relative protection of infants and children from severe respiratory illness

项目整体设计: Single Cell RNAseq of dissociated mouse lungs at ages: E18, P0, P7, P14, and P64. Suspensions were enriched for cells that were CD45 negative, Ter119 negative, and viable

GEN 数据集:
GEND000436
测序方法:
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方案
生长方案: -
处理方案: -
提取方案: At the indicated timepoints, lung lobes were harvested, minced, and incubated for 30 minutes at 37°C in dissociation media (RPMI-1640 with 0.7 mg/ml collagenase XI and 30 mg/ml type IV bovine pancreatic DNase). After incubation, lobes were passed through a wide bore pipet tip and filtered through a 40 μm filter. Single cell lung suspension was then counted, aliquoted, and blocked with CD-32 Fc block (BD cat #553142) for 20 minutes on ice. After 2% FBS staining buffer wash, cells were incubated with the conjugated primary antibodies anti-CD45 (BD cat # 559864) and anti-Ter119 (BD cat# 116211). In the same manner, fluorescence minus one controls were blocked and stained with the appropriate antibody controls. Cells from individual mice were then incubated with identifiable hashtags, resuspended in staining buffer, and treated with PI viability dye. CD45 negative, Ter119 negative, viable cells were collected by fluorescence associated cell sorting using a 70 μm nozzle on a 4-laser FACSAria III Cell Sorter. Both single and fluorescence-minus-one controls were used for compensation.
建库方案: ScRNA-seq libraries were generated using the 10X Chromium platform 5’ library preparation kits (10X Genomics) following the manufacturer's recommendations and targeting 10,000 - 20,000 cells per sample.
测序信息
分子类型: Poly(A)+ RNA
库的片段类型: PAIRED
库的链类型: -
测序平台: ILLUMINA
测序仪型号: Illumina NovaSeq 6000
链特异性: -
样本
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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
Age-determined expression of priming protease TMPRSS2 and localization of SARS-CoV-2 in lung epithelium.
The Journal of clinical investigation . 2021-01-01 [PMID: 33180746]