卡路里限制提高了化疗的效率,并重塑了肉瘤中的压力反应
Jorddam Almondes Martins1, Irislene Costa Pereira1, Thiago Sousa Reinaldo1
1Metabolic Diseases, Exercise and Nutrition Group (DOMEN), Glauto Tuquarre Metabolic Diseases Laboratory (LabGT), Department of Biophysics and Physiology, Federal University of Piauí, Teresina 64049-550, PI, Brazil.
Cancers
|January 10, 2026
概括
与化疗相结合的热量限制在癌症治疗中是安全有效的. 这种营养策略增强了抗瘤疗效,并通过减少副作用和DNA损伤,提高了对化疗的耐受性.
科学领域:
- 在瘤学瘤学.
- 营养科学 营养科学
- 癌症研究 癌症研究
背景情况:
- 化疗耐药性仍然是癌症治疗中的一个重大挑战.
- 营养干预措施,特别是热量限制,在提高瘤对治疗的敏感性方面显示出希望.
- 卡路里限制调节瘤代谢,可能增强癌细胞对传统治疗的敏感性.
研究的目的:
- 评估将热量限制与化疗相结合的安全性和有效性.
- 研究对免疫学,血液学和氧化应激参数的影响.
- 在Sarcoma-180模型中评估对瘤和肝脏形态以及DNA损伤的影响.
主要方法:
- 患有 Sarcoma-180 瘤的小鼠被分为四组:Ad Libitum (AL),AL + Doxorubicin (ALDOX),卡路里限制 (CR) 和CR + Doxorubicin (CRDOX).
- 评估瘤体重/体积,食物/热量摄入量,血液毒性,脂质新陈代谢,氧化应激标志物,基因毒性,形态和生存率.
- 评估了外周血液和瘤组织的各种生物标志物和组织学变化.
主要成果:
- 热量限制和多克索鲁比的组合是安全的,保持体重,避免代谢障碍.
- 这种疗法显著降低了瘤体积和质量,同时减轻了多克索鲁比诱导的血液毒性.
- 在外周血液中,化疗诱导的DNA损伤减少,这表明系统性保护作用.
- 氧化应激标志物 (NOx,MDA) 减少,瘤中的抗氧化活性增强.
- 组织学分析显示瘤细胞死亡 (亡) 和局部侵袭减少.
结论:
- 在Sarcoma-180模型中,与多克索鲁比辛相结合的热量限制是安全的,并且耐受良好.
- 这种综合方法增强了多克索鲁比的抗瘤疗效.
- 营养剥夺策略可以提高对化疗的耐受性,并提高治疗结果.
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