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Rhodosporidium toruloides-一种新的替代模型来研究拉巴素对人类衰老和癌症的诱导作用

Philipp M Cavelius¹, Martina Haack¹, Dania Awad¹

¹Department of Chemistry, Werner Siemens-Chair of Synthetic Biotechnology, Technical University of Munich (TUM), Garching, Germany.

Cellular and molecular life sciences : CMLS

|April 9, 2025

概括

Rhodosporidium toruloides酵母,用于研究细胞脂质积累的模型,显示其两个单元类型,IFO0559和IFO0880. 的两个单元类型,IFO0559和IFO0880. 之间的拉巴胺 (TOR) 抑制剂拉巴胺对目标的反应差异.

科学领域:

微生物学微生物学
生物化学生物化学
细胞生物学细胞生物学

背景情况:

Rhodosporidium toruloides是一种油性酵母,以压力下积累脂质和胡卜素而闻名.
拉巴胺素 (TOR) 信号的标调节细胞脂质的积累,对细胞增殖至关重要.
与S. cerevisiae不同,R. toruloides具有单个TOR激酶,使其成为哺乳动物系统的相关模型.

研究的目的:

为了研究两种R. toruloides单元型 (IFO0559和IFO0880) 对拉帕米辛治疗的分化细胞反应.
为了分析脂质和胡卜素积累的差异和哈普洛类型之间的蛋白质组特征.
评估R. toruloides作为研究癌症和衰老相关的脂质丰富系统中拉巴胺素反应的模型.

主要方法:

以蛋白质组学为中心的方法.
用TOR抑制剂拉帕米治疗R. toruloides单元型IFO0559和IFO0880的治疗方法.
对差异性蛋白质表达,脂质积累和胡卜素生产的分析.

主要成果:

一个哈普洛型 (IFO0880) 在拉帕米辛治疗后表现出严重的生长停止,而另一个 (IFO0559) 没有.
蛋白质组分析揭示了参与细胞循环控制,脂质生成,氨基酸代谢和自的蛋白质的差异表达.
已确定蛋白质在哺乳动物瘤发生和衰老中起着已知的作用.

结论:

R. toruloides对拉帕米辛表现出对单个类型的特定反应,突出显示了遗传背景的重要性.
差异性反应表明R. toruloides可以作为一种有价值的模型来研究拉帕米辛对脂质代谢的影响.
这种酵母模型对研究癌症和因高脂含量而导致的年龄相关疾病的细胞机制充满希望.

关键词:

随机类型的不同类型拉帕米辛是一种可怕的药物.这是Rhodosporidium.拉帕米的目标是拉帕米.时间解析蛋白质组学

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