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黑量子点通过PPARγ激活和脂肪细胞中的线粒体功能障碍诱导脂质积累

Sihao Zhu¹, Fengkai Ruan¹, Lingxiao Ye¹

¹State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Department of Endocrinology, Xiang'an Hospital of Xiamen University, Faculty of Medicine and Life Sciences, Xiamen University, Xiamen 361102, China.

The Science of the total environment

|December 11, 2024

概括

黑量子点 (BPQD) 可能通过引起氧化应激和脂肪组织中的脂质积累来促进肥胖. 这项研究突出了潜在的健康风险,并为BPQDs的安全应用提供了信息.

科学领域:

纳米材料科学科学纳米材料科学
毒理学毒理学毒理学
代谢研究研究代谢研究

背景情况:

黑量子点 (BPQD) 在各种应用中表现有前途,特别是生物医学.
BPQDs对脂质代谢和肥胖的影响尚不清楚.
调查长期暴露的影响对于生物安全和可持续纳米技术至关重要.

研究的目的:

研究BPQDs对脂质代谢和脂肪组织功能的影响.
阐明BPQD诱导的代谢变化的潜在机制.
评估BPQDs的潜在肥胖效应和健康风险.

主要方法:

在28天的时间里,小鼠被口服暴露于BPQD (0.1和1mg/kg).
在体外研究中使用了暴露于BPQDs的白色 (3T3-L1) 和棕色脂肪细胞.
试验包括脂质积累,氧化应激,线粒体功能和基因表达分析 (PPARγ,UCP1).

主要成果:

在小鼠中,BPQD暴露降低了胰岛素敏感性,并改变了脂肪组织功能.
在体外,BPQDs诱导了白色脂肪细胞中的脂质积累,氧化应激和升调的脂质基因.
在棕色脂肪细胞中,BPQDs 损害了线粒体功能和降低了温生成基因的调节,这些效应部分由 ROS 中介.

结论:

BPQDs可以诱导氧化应激,导致脂质积累,可能是通过PPARγ激活和脂肪组织中的线粒体功能障碍.
BPQDs表现出潜在的肥胖效应,对人类造成健康风险.
结果为黑纳米材料的生物安全和可持续发展提供了关键的见解.

关键词:

脂肪组织的脂肪组织.黑色是一种黑色.脂质代谢脂质代谢是一种氧化应激是一种氧化应激.在PPARγ中,PPARγ是PPARγ 量子点是一个量子点.

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