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南京医科大学学报(自然科学版) 第44卷第12期
·1662 · Journal of Nanjing Medical University(Natural Sciences) 2024年12月
·基础研究·
IBSP激活NF⁃κB通路促胶质母细胞瘤恶性进展
尹建星,成张淳,王协锋,颜 伟,张军霞,王颖毅 *
南京医科大学第一附属医院神经外科,江苏 南京 210029
[摘 要] 目的:探讨整合素结合唾液酸蛋白(integrin binding sialoprotein,IBSP)在胶质母细胞瘤(glioblastoma,GBM)中的表
达与患者临床预后的相关性及其对肿瘤细胞增殖、侵袭及化疗耐药性的调控作用。方法:应用公共数据库系统分析 IBSP 在
GBM 中的表达及其与患者预后的关系。在 GBM 细胞中敲低或过表达 IBSP 后,功能实验评估细胞增殖、侵袭和化疗耐药性。
结果:数据库分析发现 IBSP 在 GBM 中的表达水平显著增高,且高水平 IBSP 提示患者预后较差。敲低 IBSP 抑制 GBM 细胞增
殖、侵袭,降低化疗耐药性,过表达IBSP促进GBM细胞增殖、侵袭,提高化疗耐药性。过表达IBSP可激活NF⁃κB通路,上调NF⁃κB
下游基因表达,进而促进GBM细胞的恶性表型。结论:IBSP通过激活NF⁃κB信号通路促进GBM细胞增殖、侵袭和化疗耐药,
提示IBSP可作为GBM潜在治疗靶点。
[关键词] 胶质母细胞瘤;整合素结合唾液酸蛋白;NF⁃κB通路
[中图分类号] R739.4 [文献标志码] A [文章编号] 1007⁃4368(2024)12⁃1662⁃09
doi:10.7655/NYDXBNSN240937
IBSP promotes glioblastoma progression by activating NF⁃κB signaling
YIN Jianxing,CHENG Zhangchun,WANG Xiefeng,YAN Wei,ZHANG Junxia,WANG Yingyi *
Department of Neurosurgery,the First Affiliated Hospital of Nanjing Medical University,Nanjing 210029,China
[Abstract] Objective:To investigate the correlation between the expression of integrin binding sialoprotein(IBSP)in glioblastoma
(GBM)and the clinical prognosis of patients,and its regulatory effect on tumor cell proliferation,invasion and chemotherapy
resistance. Methods:A public database was used to analyze the expression of IBSP in GBM and its relationship with the prognosis of
patients. After IBSP was knockdown or overexpressed in GBM cells,functional assays were used to assess cell proliferation,invasion,
and chemoresistance. Results:Database analysis showed that the expression level of IBSP in GBM was significantly increased,and the
high level of IBSP indicated a poor prognosis. Knockdown of IBSP inhibited GBM proliferation,invasion and chemoresistance,and
overexpression of IBSP promoted GBM proliferation,invasion and chemoresistance. Overexpression of IBSP promoted the activation of
NF⁃κB pathway and the expression of downstream genes of NF⁃κB,which in turn promoted the malignant phenotype of GBM cells.
Conclusion:IBSP promotes GBM cell proliferation,invasion and chemoresistance by activating the NF ⁃ κB signaling pathway,
suggesting that IBSP can be used as a potential therapeutic target for GBM.
[Key words] glioblastoma;integrin binding sialoprotein;NF⁃κB signaling pathway
[J Nanjing Med Univ,2024,44(12):1662⁃1670]
脑胶质瘤是最为常见的原发性颅内肿瘤,胶质 过标准治疗(手术治疗、放疗、替莫唑胺化疗等),整
母细胞瘤(glioblastoma,GBM)是级别最高的胶质瘤 体预后不理想 。GBM患者5年病死率仅次于胰腺
[2]
[1]
类型,具有易复发、高致残、生存期短等特点 。经 癌和肺癌,位列第3位 。因此,深入探究GBM的发
[3]
生发展机制,寻找新的潜在治疗靶点,改善 GBM 治
[基金项目] 江苏省科教能力提升工程(ZDXK202225) 疗抵抗是目前亟待解决的重要问题。整合素结合
唾液酸蛋白(integrin binding sialoprotein,IBSP)是存
∗
通信作者(Corresponding author),E⁃mail:Lindsay_wang3431@
126.com 在于骨、牙骨质和牙本质中的多功能细胞外基质蛋

