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·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

