脂肪细胞通过脂肪酸代谢重编程促进胰腺癌的迁移和入侵
Zhiwei Cai1, Yang Li1, Mingjian Ma1
1Department of General Surgery, Huadong Hospital Affiliated to Fudan University, Shanghai 200040, P.R. China.
Oncology reports
|June 2, 2023
概括
胰腺癌 (PC) 细胞利用周围脂肪细胞 (脂肪细胞) 的脂质来推动它们的生长和转移. 阻止这种脂质吸收可能是治疗晚期胰腺癌的新策略.
科学领域:
- 在瘤学瘤学.
- 癌症新陈代谢 癌症新陈代谢
- 细胞生物学 细胞生物学
背景情况:
- 胰腺癌 (PC) 通常在脂肪组织内生长,但脂肪细胞和PC之间的相互作用尚不清楚.
- 主要由脂肪细胞组成的脂肪组织在局部发达和转移性PC的进展中起着重要作用.
- 了解脂肪细胞和PC细胞之间的代谢相互作用对于开发新的治疗策略至关重要.
研究的目的:
- 研究脂肪细胞影响胰腺癌进展的机制.
- 阐明在共同培养系统中PC细胞和脂肪细胞之间建立的代谢网络.
- 为了确定减轻PC转移的潜在治疗点.
主要方法:
- 使用了Panc-1 PC细胞和成熟脂肪细胞的体外共同培养模型.
- 进行了PC细胞的蛋白质组分析,这些细胞与脂肪细胞或没有脂肪细胞一起培养.
- 采用逆转录定量PCR和西部斑分析来评估基因和蛋白质表达.
- 在两种细胞类型中分析了脂质代谢和脂质液滴的形成.
主要成果:
- 培养在PC细胞中激活了缺氧信号,增加了ANGPTL4和糖溶性基因的表达.
- 癌细胞诱导了脂肪细胞中的STAT3激活和胰岛素抵抗.
- PC细胞表现出增强的脂肪酸β-氧化和增加的脂质滴积累.
- 脂肪细胞显示下调的脂质代谢和减少的脂质滴滴大小.
- 增加PC细胞中的脂质滴积累与增强的转移能力相关.
结论:
- 脂肪细胞通过复杂的代谢交换促进PC进展和转移.
- PC细胞从脂肪细胞中获取脂质,推动它们的生长和转移潜力.
- 准脂肪细胞的脂质吸收是抑制PC转移的一个有希望的策略.
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