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通过使用PPAR-γ抗剂的NMYC抑制诱导MYCN增强的神经母细胞瘤分化

Yukako Nakao-Ise¹, Takumi Narita¹, Shingo Miyamoto¹

¹Department of Molecular-Targeting Prevention, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto 602-8566, Japan.

Journal of clinical biochemistry and nutrition

|November 16, 2023

概括

PPAR-γ 抗剂通过促进细胞分化和亡来抑制神经母细胞瘤的生长. 这项研究表明了治疗儿童神经母细胞瘤的潜在新疗法策略.

科学领域:

儿科瘤学儿科瘤学
癌症生物学癌症生物学
分子治疗学分子治疗学

背景情况:

神经母细胞瘤是常见的儿科脑外固体瘤,具有神经元分化.
过氧体增殖器激活受体 (PPAR) -γ 具有神经保护性和抗瘤性质.

研究的目的:

调查PPAR-γ激动剂和抗剂在恶性神经母细胞瘤中的作用.
探索PPAR-γ调制在神经母细胞瘤治疗中的治疗潜力.

主要方法:

使用MYCN放大神经母细胞瘤CHP212细胞系进行体外研究.
服用PPAR-γ抗剂GW9662并评估对细胞生长,形态,分化标记 (TUBB3),细胞周期,细胞亡和基因表达 (NMYC,BCL2,BRD4) 的影响.
进行了体内研究,以评估瘤生长抑制和细胞分化.

主要成果:

PPAR-γ抗剂GW9662剂量依赖地抑制了神经母细胞瘤细胞的生长.
对抗剂治疗诱导了神经元分化 (增加TUBB3),G1阶段停止和亡.
观察到NMYC,BCL2和BRD4的表达显著下降.
在体内研究证实了瘤生长抑制和细胞分化.

结论:

PPAR-γ抗剂治疗促进神经母细胞细胞分化和亡,导致瘤生长抑制.
通过PPAR-γ对抗剂抑制BRD4,NMYC和BCL2是一个关键机制.
PPAR-γ抗体代表了神经母细胞瘤的一个有前途的治疗和预防选择.

关键词:

在BCL2中,BCL2是这就是BRD4D.这是NMYC的NMYC.在PPAR-γ中使用PPAR.神经母细胞瘤的神经母细胞瘤

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