Page 136 - 《南京医科大学学报》自然科学版2026年第2期
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表1 KDM6B调控巨噬细胞极化的功能与机制
Table 1 Function and mechanism of KDM6B in regulating macrophage polarization
Macrophage
Disease Mechanism of KDM6B action Functional outcome
phenotype
Parasitic infection M2 Demethylates H3K27me3 to activate IRF4,promot⁃ Immune evasion;enhanced parasite
ing M2 polarization survival
Chronic kidney fibrosis M2 KDM6B/IRF4 axis mediates M2 polarization Promotion of renal fibrosis progression
Pulmonary fibrosis M2 Regulated by Cu,Zn⁃SOD/H2O2⁃STAT6 signaling; Promoted M2 polarization;alleviates
mediates H3K27 demethylation fibrosis
Atherosclerosis M2 Statins upregulate KDM6B,removing H3K27me3 Anti ⁃ inflammatory factors ↑ ;pro ⁃
to activate M2 genes inflammatory factors↓
Breast cancer M2/M1 miR⁃138⁃5p inhibits KDM6B→M2 polarization↑; Dual role:pro ⁃ tumor or anti ⁃ tumor
KDM6B degrades β⁃catenin→M2 polarization↓ effects
Glioblastoma M2 Activates Mafb/Socs3/Sirpa axis,inhibiting phago⁃ Immunosuppression;enhanced tumor
cytosis and antigen presentation progression
Periodontitis M2 Adiponectin promotes M2 polarization via KDM6B⁃ Reduced alveolar bone loss
IRF4 axis
Colitis M1 Activates NLRP3 inflammasome,promoting IL⁃1β Exacerbates intestinal inflammation
and IL⁃6 secretion and barrier injury
Acute lung injury M1 Upregulates ADORA2A,inhibiting macrophage Sustained inflammation; increased
apoptosis and sustaining pro⁃inflammatory state tissue injury
Parkinson’s disease M2 Demethylates H3K27me3 to promote M2 gene ex⁃ Neuroprotection; reduced neuroin⁃
pression flammation
Multiple myeloma M2 KDM6B⁃IRF4 axis promotes M2 polarization Enhanced tumor proliferation,migra⁃
tion,and invasion
Spinal cord injury M1 Gallic acid inhibits KDM6B,reducing macrophage Protected blood⁃spinal cord barrier
infiltration and cytokine release
Liver ischemia⁃reperfusion M2 IL⁃4⁃STAT6⁃JMJD3 axis drives M2 polarization Anti⁃inflammatory;tissue protection
Pregnancy maintenance M2 RANKL induces KDM6B expression,driving M2 Maintained maternal ⁃ fetal immune
polarization of decidual macrophages tolerance
Diabetic wound healing M1 Activates NLRP3,leading to impaired phagocytosis Delayed wound healing
and sustained inflammation
2.1 KDM6B在NF⁃κB通路与炎症反应中的调节作用 期脓毒症中,KDM6B通过H3K27me3去甲基化抑制
NF⁃κB 通路在 KDM6B 调节巨噬细胞炎症反应 miR⁃146a表达,进而激活NF⁃κB,促进巨噬细胞促炎
的过程中发挥重要作用。在类风湿性关节炎等炎 反应,而抑制KDM6B可恢复miR⁃146a的抗炎功能,
症性疾病中,KDM6B 的催化活性是巨噬细胞炎症 减轻早期脓毒症的炎症 [53] ;在炭疽致死毒素的相关
应答的必要条件,其可通过NF⁃κB依赖性机制在巨 研究中证实,NF⁃κB⁃KDM6B 信号通路形成正反馈,
噬细胞中表达增加,从而参与炎症反应 [50] ;KDM6B 维持巨噬细胞对毒素的耐受性 ;研究证实,在LPS
[54]
也是参与腹主动脉瘤发育的关键调节因子,通过与 处理的骨髓巨噬细胞和败血症小鼠中,miR⁃27b通过
[55]
NF⁃κB共定位到炎症基因的启动子结合区域,使炎症 抑制KDM6B/NF⁃κB/p65轴,降低促炎基因的表达 。
细胞因子的产生增多,从而可能导致不良的预后 [51] 。 2.2 KDM6B在无菌/有菌性炎症和代谢疾病中的作用
在动脉粥样硬化的发生发展中,巨噬细胞充当重要 血清淀粉样蛋白A(serum amyloid A,SAA)诱导
角色,LPS 和干扰素⁃γ刺激巨噬细胞后,KDM6B 通 的小鼠炎症模型中,KDM6B参与调控SAA诱导的中
过持续去除IL⁃1β启动子区的H3K27me3修饰,维持 性粒细胞增多,同时,KDM6B可促进SAA刺激的巨噬
染色质开放状态,使巨噬细胞在刺激停止后仍保持 细胞中 IL⁃1β、IL⁃8 和肿瘤坏死因子(tumor necrosis
IL⁃1β的高表达,驱动炎症反应的长期维持 [52] ;在早 factor,TNF)⁃α等炎性因子的表达,且参与SAA 增强

