电荷逆转近红外II聚合物合物使得有效的组合基因和轻度光热疗法用于骨髓瘤
Fang Tang1, Xiaoyu Zhang2, Zhenqi Liu1
1State Key Laboratory of Flexible Electronics (LoFE) & Institute of Flexible Electronics (IFE), Xiamen University, Xiamen 361102, China.
ACS nano
|February 4, 2026
概括
一种新的聚合物系统将基因疗法与轻度光热疗法 (mPTT) 结合起来,用于骨肉瘤 (OS). 这种先进的GT-mPTT方法提高了抗瘤疗效和生物安全性,为OS治疗提供了一个有前途的新方向.
科学领域:
- 生物材料科学 生物材料科学
- 在瘤学瘤学.
- 纳米技术 纳米技术
背景情况:
- 骨髓瘤 (OS) 是一种具有有限治疗选择的侵袭性骨癌.
- 目前的基因疗法和轻度光热疗法 (mPTT) 组合 (GT-mPTT) 是有前途的,但在有效性和安全性方面面临挑战.
- 需要改进的治疗策略来打击OS进展和治疗耐药性.
研究的目的:
- 开发一种反应性氧物种 (ROS) 响应的聚合物两胞体,用于对OS的成像导向组合GT-mPTT疗法.
- 提高OS治疗中的治疗反应,效率和生物安全性.
- 创建一个精准治疗平台,整合成像和治疗能力.
主要方法:
- 合成了一种ROS响应的聚合物,其中包含瓜尼丁用于基因凝聚和NIR-II染料用于光热转换.
- 在ROS下用于控制基因释放的利用电荷逆转和在轻度高温症中用于NIR-II辐射.
- 采用双NIR-II光和光热成像用于治疗指导.
- 在实验室和体内使用带有OS的小鼠模型评估GT-mPTT的疗效.
主要成果:
- 开发的聚合物系统证明了有效的基因传递,并控制了轻度高温症.
- GT-mPTT疗法显著增强了抗瘤活性,包括增加了亡和瘤减少.
- 在OS小鼠模型中,该疗法成功缓解了骨解,具有出色的生物安全性和最小的全身毒性.
- 双模成像指导了组合疗法,提高了精度和结果.
结论:
- 响应ROS的聚合物平台为骨髓瘤中高级GT-mPTT提供了一个有前途的战略.
- 综合成像和治疗功能使OS的精准医学方法成为可能.
- 这项工作为开发强大而安全的多式联络疗法奠定了基础,用于像OS这样具有挑战性的癌症.
更多相关视频
04:07Author Spotlight: Integrated OPTIR-FISH for Single-Cell Metabolic and Identity Analysis in Complex Environments
Published on: February 23, 2024
2.0K
06:42Plasmonic Photothermal Cancer Therapy: Nanoparticle-embedded Tumor-tissue-mimicking Phantoms for Visualizing Photothermal Temperature Distribution
Published on: May 9, 2025
1.1K
相关概念视频
Combinatorial Gene Control
9.7K
Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
9.7K
Gene Therapy
27.6K
Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
27.6K
Formal Charges
40.6K
In some cases, there are seemingly more than one valid Lewis structures for molecules and polyatomic ions. The concept of formal charges can be used to help predict the most appropriate Lewis structure when more than one reasonable structure exists.
40.6K
Ions and Ionic Charges
79.2K
In ordinary chemical reactions, the nucleus — which contains the protons and neutrons of each atom and thus identifies the element — remains unchanged. Electrons, however, can be added to atoms by transfer from other atoms, lost by transfer to other atoms, or shared with other atoms. The transfer and sharing of electrons among atoms govern the chemistry of the elements. During the formation of some compounds, atoms gain or lose electrons to form electrically charged particles called...
79.2K
Atomic Radii and Effective Nuclear Charge
62.2K
The elements in groups of the periodic table exhibit similar chemical behavior. This similarity occurs because the members of a group have the same number and distribution of electrons in their valence shells.
62.2K
Electric Charges
22.9K
From lightning during thunderstorms to electronic devices, the phenomenon of electromagnetism is all around us. The electromagnetic force is one of the four fundamental forces of nature. It has been known to humanity in various forms for thousands of years. For example, the ancient Greek philosopher Thales of Miletus recorded his experiments on static electricity using amber and fur in the sixth century BC.
The English physicist William Gilbert studied the phenomenon of static electricity in...
The English physicist William Gilbert studied the phenomenon of static electricity in...
22.9K
