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[1]邱天,刘恺宁,王广秀,等.雷洛昔芬抑制胶质瘤及与替莫唑胺协同作用的研究[J].天津医科大学学报,2025,31(05):412-420.[doi:10.20135/j.issn.1006-8147.2025.05.0412]
 QIU Tian,LIU Kaining,WANG Guangxiu,et al.Study on the inhibitory effect of raloxifene on glioma cells and combination therapy with temozolomide[J].Journal of Tianjin Medical University,2025,31(05):412-420.[doi:10.20135/j.issn.1006-8147.2025.05.0412]
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雷洛昔芬抑制胶质瘤及与替莫唑胺协同作用的研究(PDF)
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《天津医科大学学报》[ISSN:1006-8147/CN:12-1259/R]

卷:
31卷
期数:
2025年05期
页码:
412-420
栏目:
基础医学
出版日期:
2025-09-20

文章信息/Info

Title:
Study on the inhibitory effect of raloxifene on glioma cells and combination therapy with temozolomide
文章编号:
1006-8147(2025)05-0412-09
作者:
邱天1刘恺宁2王广秀1张安玲1王虎2贾志凡1
1.天津医科大学总医院神经病学研究所神经肿瘤实验室,天津 300052;2.天津市环湖医院神经外科,天津 300350
Author(s):
QIU Tian1 LIU Kaining2 WANG Guangxiu1 ZHANG Anling1 WANG Hu2 JIA Zhifan1
1. Department of Neuro-oncology, Institute of Neurology, General Hospital of Tianjin Medical University, Tianjin 300052, China;2. Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin 300350, China
关键词:
胶质瘤 雷洛昔芬 替莫唑胺
Keywords:
glioma raloxifene temozolomide
分类号:
R651.1
DOI:
10.20135/j.issn.1006-8147.2025.05.0412
文献标志码:
A
摘要:
目的:探究雷洛昔芬(Ralo)对胶质瘤生物学行为的影响以及Ralo联合替莫唑胺(TMZ)用药的效果。方法:采用CCK-8实验测定B2-17细胞系和TJ905细胞系中Ralo和TMZ的半数抑制浓度(IC50),根据IC50值将细胞分为4个处理组分为二甲基亚砜(DMSO)组、Ralo组(B2-17 18.5 μmol/L, TJ905 20 μmol/L)、TMZ组(B2-17 1 100 μmol/L ,TJ905 1 412.4 μmol/L)和Ralo+TMZ组(B2-17 Ralo 14.7 μmol/L +TMZ 140.03 μmol/L,TJ905 Ralo 16.5 μmol/L +TMZ 160.6 μmol/L)。采用 CCK-8实验、细胞划痕实验、Transwell实验、Annexin V凋亡实验评价对胶质瘤细胞系增殖、凋亡、迁移和侵袭等生物学行为的影响。采用Western印迹(WB)检测基质金属蛋白酶(MMP)2、增殖细胞核抗原抗体(PCNA)、胱天蛋白酶3(Caspase3)以及B 细胞淋巴瘤-2蛋白(Bcl-2)表达情况。根据两种药物的IC50值分别设置浓度梯度,根据结果计算联合作用指数。结果:与 DMSO 组相比,Ralo组、TMZ 组以及 Ralo +TMZ组的存活率都明显下降(B2-17:t=0.282、0.211、0.201,均P<0.05;TJ905:t=0.308、0.267、0.379,均P<0.05);Ralo组和TMZ组凋亡率明显升高(t=5.254、7.162,t=6.769,8.623,均P<0.05),相比Ralo组与TMZ组,Ralo+TMZ组细胞的凋亡率明显上升(F=25.54、14.71,均P<0.05)。药物处理 48 h后,与DMSO组相比,Ralo组(t=6.607、4.743,均P<0.05)、TMZ组(t=6.607、4.743,均P<0.05)的间隙愈合率均出现明显降低。Ralo和TMZ联合使用后,间隙愈合率相比Ralo组和TMZ组显著降低(F=65.94、41.70,均P<0.05);WB结果显示,Ralo 组MMP2、PCNA、Bcl-2的表达降低(t=10.26、14.69,t=7.107、10.77,t=13.78、23.53,均P<0.01),Caspase3表达显著升高(t=5.147、8.595,均P<0.01)。TMZ组同样降低了PCNA(t=9.541、11.83,均P<0.01)、MMP2(t=9.973、10.48,均P<0.01)、Bcl-2(t=18.16、29.43,均P<0.01)的表达,上调了Caspase3的表达(t=10.50,11.85,均P<0.001)。此外,相较于Ralo组和TMZ组,Ralo+TMZ组MMP2、PCNA、Bcl-2蛋白表达量均进一步降低(F=85.38、213.5,均P<0.001;F=98.55、30.08,均P<0.01;F=5.391、206.9均P<0.05),同时Caspase3表达量进一步升高(F=144.3、36.92,均P<0.001)。结论:Ralo 抑制胶质瘤细胞的增殖、侵袭、迁移能力,并诱导细胞凋亡,Ralo和TMZ联合存在协同作用。
Abstract:
Objective: To investigate the effects of raloxifene (Ralo) on the biological behavior of glioma and the therapeutic efficacy of Ralo combined with temozolomide (TMZ). Methods: The half-maximal inhibitory concentration (IC50) of Ralo and TMZ in B2-17 and TJ905 cell lines was determined using the CCK-8 assay. Based on the IC50 values, the cells were divided into four treatment groups: dimethyl sulfoxide (DMSO) control group, Ralo monotherapy group(B2-17 18.5 μmol/L; TJ905 20 μmol/L), TMZ monotherapy group(B2-17 1 100 μmol/L; TJ905 1 412.4 μmol/L), and Ralo+TMZ combination therapy group(B2-17: Ralo 14.7 μmol/L + TMZ 140.03 μmol/L; TJ905: Ralo 16.5 μmol/L + TMZ 160.6 μmol/L). The effects of the biological behaviors of glioma cell lines, such as proliferation, apoptosis, migration, and invasion were evaluated through CCK-8 assay, wound healing assay, Transwell invasion assays, and Annexin V apoptosis assay, and Western blotting was used to detect the expression of matrix metalloproteinase-2 (MMP-2), proliferating cell nuclear antigen (PCNA), cysteinyl aspartate specific protei-nase(Caspase3), and B-cell lymphoma-2 protein (Bcl-2). Concentration gradients of the two drugs were established based on their respective IC50 values, and the combination index (CI) was calculated to assess drug interactions. Results: Compared to the DMSO control group, Ralo monotherapy, TMZ monotherapy, and Ralo+TMZ combination therapy significantly reduced cell viability (B2-17:t=0.282,0.211,0.201,all P<0.05;TJ905:t=0.308,0.267,0.379,all P<0.05). Apoptosis rates were markedly increased in Ralo and TMZ group (t=5.254,7.162, 6.769, 8.623,all P<0.05), with the Ralo+TMZ combination therapy group showing further enha-ncement compared to the Ralo monotherapy and TMZ monotherapy (F=25.54, 14.71, both P<0.05). After 48 hours of drug treatment, compared to the DMSO control group, the wound healing rates were significantly reduced in both the Ralo group (t=6.607, 4.743,both P<0.05) and TMZ group (t=6.607, 4.743, both P<0.05). The Ralo+TMZ combination further suppressed wound healing rates compared to Ralo monotherapy and TMZ monotherapy group (F=65.94, 41.70, both P<0.05). Western blotting analysis revealed that Ralo downregulated MMP-2 (t=10.26, 14.69, both P<0.01), PCNA (t=7.107, 10.77, both P<0.01), and Bcl-2 (t=13.78, 23.53,both P<0.01), while upregulating Caspase3 (t=5.147, 8.595, both P<0.01). TMZ similarly reduced PCNA(t=9.541, 11.83, both P<0.01), MMP-2 (t=9.973, 10.48, both P<0.01), and Bcl-2 expression (t=18.16, 29.43, both P< 0.01), and increased Caspase3 expression (t=10.50, 11.85, both P<0.001). Compared to Ralo monotherapy and TMZ monotherapy group, the Ralo+TMZ combination group showed further downregulation of MMP-2, PCNA, and Bcl-2 protein expression (F=85.38, 213.5, both P<0.001;F=98.55,30.08, both P<0.01;F=5.391, 206.9, both P<0.05), along with a more pronounced upregulation of Caspase3 (F=144.3, 36.92, both P<0.001). Conclusion: Ralo suppresses the proliferation, invasion, and migration of glioma cells while inducing apoptosis, and its combination with TMZ exhibits a synergistic antitumor effect.

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备注/Memo

备注/Memo:
基金项目:国家自然科学基金(30872985、81101915);天津市卫生健康科技项目(MS20024)
作者简介:邱天(1999-),男, 学士,研究方向:外科学(神经外科);通信作者:贾志凡,E-mail: jiazhfan@163.com, 王虎,E-mail: tiger_rui@163.com。
更新日期/Last Update: 2025-10-01