通过PDK1介导的USP5酸化调节NF-κB信号,以增强骨髓瘤的生长
Zhaojie Yang1, Zhidan Yu2, Junyan Teng3
1Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, China; Laboratory of Bone Tumor, Luoyang Orthopedic Hospital of Henan Province (Orthopedic Hospital of Henan Province), Zhengzhou 450000, China.
International journal of biological macromolecules
|February 23, 2025
概括
酸盐脱酶激酶1 (PDK1) 通过激活NF-κB通路来驱动骨肉瘤的生长. 阿基基宁 (ATG) 抑制PDK1,为骨髓瘤提供了潜在的新疗法.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
背景情况:
- 酸盐脱酶激酶1 (PDK1) 在各种癌症中过度表达,表明其作为治疗点的潜力.
- 骨髓瘤 (OS) 呈现出多种不同的免疫状态,PDK1被确定为影响这些差异的关键因素.
研究的目的:
- 研究PDK1在骨髓瘤 (OS) 中的作用及其对瘤微环境和免疫状态的影响.
- 阐明PDK1促进OS发展的分子机制.
- 为了确定潜在的PDK1治疗抑制剂用于OS治疗.
主要方法:
- 骨髓瘤免疫类型的生物信息分析和PDK1与瘤微环境相关性的泛癌症分析.
- 涉及PDK1-USP5相互作用,酸化和NF-κB通路的随后激活的机制研究.
- 分子模拟对接,拉下测试和SIP实验,以识别和验证arctigenin (ATG) 作为PDK1抑制剂.
主要成果:
- 在OS中证实了PDK1过度表达,与免疫状态和瘤微环境相关.
- PDK1可化USP5,激活其二化活性,稳定IKKγ,并激活NF-κB通路,从而促进OS细胞生长.
- 鉴定出Arctigenin (ATG) 是一种PDK1抑制剂,在异种移植模型中有效抑制OS细胞增殖和瘤生长.
结论:
- PDK1通过PDK1-USP5-IKKγ轴促进骨肉瘤的进展,从而导致NF-κB的激活.
- 阿尔基基宁 (ATG) 通过抑制PDK1.1,显示出作为骨髓瘤治疗剂的潜力.
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