Journal: Advanced Science
Article Title: Expanded Hepatic Progenitor Cells Featured with Aggregation of α‐Synuclein Contribute to Pathologic Bile Duct Regeneration in Biliary Atresia
doi: 10.1002/advs.76054
Figure Lengend Snippet: Characterization of NCAM1 + EpCAM + HPCs in the expanded biliary clusters in BA. (a) Enrichment score of HPCs gene set in each biliary cluster. Comparisons among multiple clusters were performed using the Kruskal‐Wallis test, with a significance level of p < 0.001. (b) Venn diagram of DEGs showing higher expression in cluster 17 than other three biliary clusters (avg_log 2 FC>1), the DEGs showing higher expression in BA than the control group across all four biliary clusters (avg_log 2 FC>1), and the membrane protein database. (c) Gene density plot of NCAM1 in biliary clusters. (d): The proportion of NCAM1 positive cells of BA, Ctrl and external single‐cell dataset. P value was calculated by Chi‐squared test. (e): The proportion of NCAM1 + cells in EpCAM + cells of BA, Ctrl and normal cholangiocyte dataset ( GSE185477 contains four healthy human liver caudate lobes). P value was calculated by Chi‐squared test. (f): The expression of NCAM1 in BA compared with normal liver tissues in GSE122340 (171 BA and 7 normal liver tissues) calculated by wilcoxon rank‐sum test. (g): The expression of NCAM1 in BA (n = 38) and Ctrl liver tissues ( n = 21). P value was calculated by unpaired t test. (h) Immunohistochemical staining of NCAM1 on paraffin sections of livers from Ctrl, BA with mild liver fibrosis (BA‐FM) and BA with severe liver fibrosis (BA‐FS). Scale bar: 100 µm. (i) Comparison of H‐scores for NCAM1 in portal areas of liver tissues between BA ( n = 42) and Ctrl (n = 10). P value was calculated by unpaired t test. (j) Comparison of H‐scores for NCAM1 in portal areas of liver tissues between BA‐FM ( n = 30) and BA‐FS ( n = 12). P value was calculated by unpaired t test. (k) Morphology of NCAM1 + EpCAM + cells derived organoids and NCAM1 − EpCAM + cells derived organoids in BA (The left side of each group, scale bar: 200 µm). Regions highlighted with dotted boxes were magnified and shown on the right (scale bar: 50 µm). Calcein AM staining (Green) of the organoids were shown. (l) Volcano plot of DEGs of organoids derived from NCAM1 + EpCAM + cells ( n = 3) and NCAM1 − EpCAM + cells ( n = 4). (m) Bar chart showing transcriptional activity of TFs implicated in biliary and hepatic lineage. Red color indicated increased activity, while blue color indicated decreased activity in NCAM1 + EpCAM + cells derived organoids.
Article Snippet: After single cells (viability>80%) were obtained, NCAM1 (CD56)‐positive and ‐negative expressing cells were isolated according to the REAlease CD56 MicroBead kit manual (130‐117‐033; Miltenyi, USA).
Techniques: Expressing, Control, Membrane, Single Cell, Immunohistochemical staining, Staining, Comparison, Derivative Assay, Activity Assay