Effect of macrophages on the differentiation of mouse induced pluripotent stem cells into hepatic progenitor cells
DOI:10.3969/j.issn.1001-5256.2021.04.025
- VernacularTitle:巨噬细胞对小鼠诱导多能干细胞向肝祖细胞分化的影响
- Author:
Tiantian GONG
1
;
Shaogang HUANG
;
Ruizhen SUN
;
Jingling SHEN
;
Qiuming LI
;
Lei LEI
;
Zhiyan SHAN
Author Information
1. Department of Histology and Embryology, Harbin Medical University, Harbin 150081, China
- Publication Type:Research Article
- Keywords:
Multipotent Stem Cells;
Hepatic Progenitor Cells;
Macrophages;
Cell Differentiation;
Mice, Inbred C57BL
- From:
Journal of Clinical Hepatology
2021;37(4):852-856
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo investigate the effect of macrophages (MCs) on the differentiation of mouse induced pluripotent stem cells (iPSCs) into hepatic progenitor cells (HPCs). MethodsA total of 24 C57BL/6N mice were used to obtain MCs by peritoneal irrigation, and the supernatant was collected to obtain the conditioned medium of MCs (MC-CDM). Activin A, bone morphogenetic protein 4, and fibroblast growth factor were used to induce the differentiation of mouse iPSCs into HPCs. The differentiation of HPCs were randomly divided into control group (normal medium) and experimental group (MC group; use of MC-CDM medium on day 5 of induction). Morphology, immunofluorescence assay, and Western blot were used to compare the morphology of HPCs and the expression of related proteins between the control group and the MC group. The t-test was used for comparison of continuous data between two groups. ResultsHPCs derived from iPSCs were established in vitro, and HPCs had the potential to differentiate into hepatocytes. Immunofluorescence assay showed that compared with the D12 control group, the D12 MC group had a significant increase in the protein expression of the HPC-specific protein CK19 (0.901±0.072 vs 0.686±0.097, t=-3.093, P＜0.05). Western blot showed that compared with the D12 control group, the D12 MC group had a significant increase in the protein expression of the HPC-related protein CK19 (1.922±0.103 vs 1.448±0.012, t =-7.881, P ＜005), as well as a significant increase in the protein expression of the autophagy-related protein LC3 (1.392±0.042 vs 1.101±0048, t =-5.978, P＜005). ConclusionMCs can promote the differentiation of mouse iPSCs into HPCs, possibly by increasing the autophagy level of HPCs.
