Related Experiment Video
Updated: Aug 7, 2026
10:02
piggyBac Transposon System Modification of Primary Human T Cells
Published on: November 5, 2012
17.3K
Single-cell transcriptomic analysis reveals transcriptional and cell subpopulation differences between human and pig
Jie Li1,2,3,4, Yanan Xu1,2,3, Jiayu Zhang1,2,5
1State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beichen West Road 1-5, Chaoyang District, Beijing, 100101, China.
Genes & Genomics
|November 18, 2023
Summary
This study compares gene expression in human and pig immune cells, revealing key differences in cell distribution and function. Understanding these disparities is crucial for advancing xenotransplantation research.
Area of Science:
- Immunology
- Comparative genomics
- Xenotransplantation
Background:
- Pigs are key donors for xenotransplantation, but immune system differences hinder success.
- Understanding human-pig immune cell transcriptional profiles is vital for xenotransplantation.
- Previous studies have not detailed gene expression differences in immune cell subpopulations.
Purpose of the Study:
- To compare gene transcriptional profiles between human and pig immune cells.
- To identify similarities and differences in immune cell subpopulations.
- To provide foundational data for genetically engineering donor pigs.
Main Methods:
- Single-cell RNA sequencing (scRNA-seq) of peripheral blood mononuclear cells (PBMCs) from pigs and humans.
- Integration of human-pig scRNA-seq data to define gene expression landscapes.
- Flow cytometry for immune cell subset identification.
Main Results:
- Pigs have fewer T cells, NK cells, and monocytes, but more B cells than humans.
- Distinct transcriptional profiles were observed, including differences in oxidative phosphorylation, glycolysis, and cytokine signaling.
- Specific subsets like CD14+ monocytes, CD4+ T cells, CD8+ T cells, and B cells showed unique functional characteristics in pigs compared to humans.
Conclusions:
- Integrated scRNA-seq revealed significant differences in pig and human immune cell distribution and transcriptional profiles.
- This research deepens the understanding of porcine immune cell development and function.
- Findings are critical for improving xenotransplantation outcomes by informing genetic engineering strategies.
