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第46卷第10期
               ·1496 ·                           南 京    医 科 大 学 学         报                        2026年10月


              G1期,抑制了细胞周期进程(图4A、B)。                             2.6  ZNF326对下游靶基因的影响
              2.5  过表达ZNFD326可调控SERPINB2                             与对照组(LV⁃NC)相比,LV⁃ZNF326 组的蛋白
                  通过对差异基因进行核心基因筛选(|log2Fold⁃                   (图 6A)和 mRNA 水平均显著升高(P < 0.001,图
              Change|≥1),差异基因表达火山图显示,过表达                        6C)。同时,SERPINB2的蛋白和mRNA表达水平也
              ZNF326 后,41 个基因上调 59 个基因下调(图 5A);                 伴随 ZNF326 过表达而显著升高。在 si⁃ZNF326 组
              从差异基因表达热图显示过表达 ZNF326 后,SER⁃                      中,ZNF326 的蛋白和 mRNA 水平均显著低于 si⁃NC
              PINB2基因表达差异显著,可能是ZNF326的直接下                       组(P < 0.001,图 6B、D),相应地,SERPINB2 的蛋
              游靶点(图5B)。                                         白和 mRNA 表达水平也随 ZNF326 敲低而显著下


              A                                               B             NC                    si⁃ZNF326
                           NC                  si⁃ZNF326
                                                                  400                     300
                 10 5  Q1         Q2    10 5  Q1        Q2                     Debris                  Debris
                                                                               Aggregales              Aggregales
                    0.62%      7.86%       0.27%      17.4%                               250
                                                                  300          G1:45.63%  200          G1:73.50%
                Comp⁃PI⁃A  10 3        Comp⁃PI⁃A  10 3           Number  200   S:46.75%  Number  150   S:18.07%
                  4
                                         4
                                        10
                 10
                                                                                                       G2:8.42%
                                                                               G2:7.61%
                                                                  100                     100
                  0  Q4           Q3     0  Q4          Q3                                50
                    70.5%      21.0%       56.7%      25.6%
                                                                   0                       0
                     0   10 3  10 4  10 5   0   10 3  10 4  10 5    0   50  100  150  200    0  50  100  150  200
                       Comp⁃FITC⁃A            Comp⁃FITC⁃A                   PI⁃A                    PI⁃A
                 A:Apoptosis assay showed that knockdown of ZNF326 resulted in marked apoptosis. B:Cell cycle analysis revealed that knockdown of ZNF322 re⁃
              sulted in cell cycle arrest at the G1 phase.
                                          图4 敲低ZNF326对T⁃ALL细胞周期及凋亡的影响
                             Figure 4 Effects of ZNF326 knockdown on cell cycle and apoptosis of the T⁃ALL cells
               A                                               B
                                               Regulated
                                                 Up(41)
                     10                          Down(59)
                                                 Nonsig(13 545)                       SERPINB2
                  Log2Fold change  1.0 0                                              IGLL1        Group
                     5
                                                                                      MSTRG.14170.2
                                                                                                     LV⁃ZNF326
                                                                                                     NC
                                                                                      ZNF326
                   -1.0
                                                                                      MSTRG.10175.5
                                                                                      MSTRG.22698.2  FPKM
                    -5                                                                               2
                                                                                      RUBCNL
                                                                                      RAG1           1
                                                                                      MSTRG.22802.5
                                                                                                     0
                       0        0.5        1                                          MSTRG.23354.1
                                LgFRKM                                                MSTRG.17368.13  -1
                                                                                      KLF2           -2
                                                                                      TUBB3
                                                                                      KRT1
                                                                                      PI16
                                                                                      S1PR1
                                                                                      RAR1GAP2
                                                                                      MSTRG.22968.1
                                                                                      MSTRG.10175.13
                                                                                      MSTRG.15997.4
                                                                         LV⁃ZNF326⁃3 LV⁃ZNF326⁃1
                                                                    NC⁃1  NC⁃2  NC⁃3
                                                                            LV⁃ZNF326⁃4

                 A:Following ZNF326 overexpression,the volcano plot of differentially expressed genes revealed 41 significantly upregulated genes and 59 signifi⁃
              cantly downregulated genes. B:The heatmap of differentially expressed genes following ZNF326 overexpression revealed that ZNF326 and its down⁃
              stream target gene SERPINB2 were significantly upregulated in the LV⁃ZNF326 group.
                                               图5  过表达ZNF326后转录组测序结果
                                  Figure 5  Transcriptome sequencing results after ZNF326 overexpression
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