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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
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