Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 250100, China.
Animal Genomics and Improvement Laboratory, Henry A. Wallace Beltsville Agricultural Research Center, Agricultural Research Service, USDA, Beltsville, MD, 20705, USA.
BMC Genom Data. 2023 Aug 7;24(1):39. doi: 10.1186/s12863-023-01139-0.
This study was performed in the frame of a more extensive study dedicated to the integrated analysis of the single-cell transcriptome and chromatin accessibility datasets of peripheral blood mononuclear cells (PBMCs) with a large-scale GWAS of 45 complex traits in Chinese Holstein cattle. Lipopolysaccharide (LPS) is a crucial mediator of chronic inflammation to modulate immune responses. PBMCs include primary T and B cells, natural killer (NK) cells, monocytes (Mono), and dendritic cells (DC). How LPS stimulates PBMCs at the single-cell level in dairy cattle remains largely unknown.
We sequenced 30,756 estimated single cells and mapped 26,141 of them (96.05%) with approximately 60,075 mapped reads per cell after quality control for four whole-blood treatments (no, 2 h, 4 h, and 8 h LPS) by single-cell RNA sequencing (scRNA-seq) and single-cell sequencing assay for transposase-accessible chromatin (scATAC-seq). Finally, 7,107 (no), 9,174 (2 h), 6,741 (4 h), and 3,119 (8 h) cells were generated with ~ 15,000 total genes in the whole population. Therefore, the single-cell transcriptome and chromatin accessibility datasets in this study enable a further understanding of the cell types and functions of PBMCs and their responses to LPS stimulation in vitro.
本研究是在更广泛研究的框架内进行的,该研究旨在对中国荷斯坦奶牛的 45 个复杂性状的大规模全基因组关联研究(GWAS)的外周血单核细胞(PBMC)的单细胞转录组和染色质可及性数据集进行综合分析。脂多糖(LPS)是调节免疫反应的慢性炎症的关键介质。PBMC 包括原代 T 和 B 细胞、自然杀伤(NK)细胞、单核细胞(Mono)和树突状细胞(DC)。LPS 如何在奶牛的单细胞水平上刺激 PBMC 仍知之甚少。
我们对 30756 个估计的单细胞进行了测序,并对其进行了映射,其中 26141 个(96.05%)经过质量控制后映射到大约 60075 个有大约 60075 个映射读取的细胞中,用于四个全血处理(无、2 小时、4 小时和 8 小时 LPS)的单细胞 RNA 测序(scRNA-seq)和单细胞转座酶可及性染色质测序(scATAC-seq)。最后,在整个群体中生成了 7107 个(无)、9174 个(2 小时)、6741 个(4 小时)和 3119 个(8 小时)细胞,总基因数约为 15000 个。因此,本研究中的单细胞转录组和染色质可及性数据集可进一步了解 PBMC 的细胞类型和功能及其对 LPS 刺激的体外反应。