Page 34 - 南京医科大学学报自然科学版
P. 34
第41卷第9期
·1300 · 南 京 医 科 大 学 学 报 2021年9月
A B C
Volcano ID Description
1.5 0043062 GO: 0016054 GO: 0034341GO: 0071346 GO:0034341 response to interferon⁃gamma
GO:0071346 cellular response to interferon⁃gamma
1.0 GO:0032496 response to lipopolysaccharide
log2 FC 0.5 0006520 GO: GO: GO:0002237 response to molecule of bacterial origin
GO:0044282
small molecule catabolic process
0.0
response to virus
-0.5 GO: 0032496 GO: GO:0009615 humoral immune response
GO:0006959
-1.0 GO: GO:0006520 cellular amino acid metabolic process
-1.5 0006959 0002237 GO: 0044282 GO: 0009615 GO:0043062 extracellular structure organzation
GO:0016054 organic acid catabolic process
0 2 4 6 8 10
⁃lg10(adj.P.Val) z⁃score log2 FC
downregulated upregulated
decreasing increasing
D E
hsa04940 hsa04145 hsa04145 Description
ID
Phagosome
hsa05332 hsa05133 hsa05133 Protein digestion and absorption
Pertussis
hsa04974
hsa05323 Rheumatoid arthritis
hsa05330 hsa04061 Viral protein interaction with cytokine and cytokine receptor
hsa04974
hsa04610
Complement and coagulation cascades
hsa05150 Staphylococcus aureus infection
hsa05150 hsa0532 hsa05330 Graft⁃versus⁃host disease
Allograft rejection
hsa05332
hsa04940 Type I diabetes mellitus
hsa04610 hsa04061
z⁃score log2 FC
downregulated upregulated
decreasing increasing
F G
100 B cells naive 0.7 P=0.005
( % ) 80 B cells memory 0.6
Plasma cells
T cells CD8
T cells CD4 naive
T cells CD4 memory resting
Relative Percent 60 T cells regulatory(Tregs) GSE21374中各个移植肾样本中 各类免疫细胞的浸润情况 vs. CAD,=232 vs. 51 ) n 0.4 P=0.124 P=0.338 P=0.334 P=0.305 P=0.721 P<0.001 P=0.971 P=0.008 P=0.756
T cells CD4 memory activated
0.5
T cells folicular helper
T cells gamma delta
NK cells resting
NK cells activated
Monocytes
40
Macrophages M0
Macrophages M1
0.3
Macrophages M2
Dendritic cells resting
20
Dendritic cells activated
Mast cells resting
Mast cells activated
Eosinophils 0.2 P=0.515 P=0.986 P=0.463 P=0.028 P=0.767 P=0.508 P=0.018 P=0.55 P=0.028
0 Neutrophils ( normal 0.1 P=0.292 P=0.288 P=0.88
0.0
T cells regulatory ( Tregs)
T cells CD4 naive
T cells gamma delta
NK cells activated
Monocytes
Mast cells resting
Mast cells activated
Neutrophils
Macrophages M1
Macrophages M2
Dendritic cells resting
T cells CD4 memory resting
B cells naive Plasma cells T cells folicular helper NK cells resting Macrophages M0 Dendritic cells activated Eosinophils
T cells CD4 memory activated
T cells CD8
B cells memory
A:火山图,基于GSE21374中CAD患者与移植肾功能正常患者之间存在差异表达基因;B:圈图,基于基因本体论(GO)分析差异基因的功
能富集情况;C:GO功能富集情况;D:圈图,基于京都基因与基因组百科全书(KEGG)分析差异基因的功能富集情况;E:KEGG功能富集情况;
F:柱状图,GSE21374中各个样本中的免疫细胞亚群比例分布;G:小提琴图,GSE21374中CAD患者与移植肾功能正常患者之间存在的差异分
布的免疫细胞亚群。
图1 基于GEO数据库的CAD组与移植肾功能正常组移植肾基因表达谱的生物信息学分析
Figure 1 The bioinformatic analysis of mRNAs expression profile of the CAD allograft and normal function allograft based
on the GEO database
胞CD31表达量减少,而α⁃SMA的表达量增加,提示 2.4 M1 型巨噬细胞能诱导内皮细胞的 EndMT 而
内皮细胞发生了 EndMT 过程(图 4B)。PCR 结果表 M2型巨噬细胞不能诱导内皮细胞的EndMT
明,下层内皮细胞 CD31 mRNA 的表达量随时间显 随着培养时间的延长,和 M1 型巨噬细胞共培
著减少,而肌成纤维细胞的标志物(α⁃SMA、Fibro⁃ 养的内皮细胞呈梭形,而和 M2 型巨噬细胞共培养
nectin、Vimentin、FSP1、Collagen Ⅰ)mRNA随时间表 的内皮细胞仍然保持为铺路石样(图 4A)。细胞
达增加(P<0.05,图4C);WB结果表明,内皮细胞的 免疫荧光结果亦提示共培养后,和 M2 型巨噬细
标志物VE⁃cadherin蛋白的表达显著减少,而肌成纤 胞共培养的内皮细胞α⁃SMA 的表达量未见增加,
维细胞的指标(α⁃SMA、Vimentin、Collagen Ⅰ)表达 内皮细胞并未发生 EndMT 过程(图 4B),M2 型巨
增加(P<0.05,图 4D、E)。由上可见,M1 型巨噬细 噬 细 胞 极 化 不 能 诱 导 内 皮 细 胞 发 生 EndMT 过
胞极化可诱导内皮细胞发生EndMT过程。 程。结合既往研究结果,即肾微血管 EndMT 过程