一个生物模拟微粒破坏了瘤细胞的细胞内/细胞外pH平衡,用于癌症化学免疫疗法
Liping Zuo1, Ya Zhao1, Zhou Huang1
1School of Life Science and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150080, P. R. China.
ACS nano
|February 23, 2026
概括
这项研究引入了破坏瘤细胞pH平衡的仿生微粒,结合化疗和免疫疗法,通过准细胞内和细胞外酸性来有效抑制瘤.
科学领域:
- 生物医学工程 生物医学工程
- 癌症治疗 癌症治疗
- 药物运输 药物运输 药物运输
背景情况:
- 瘤细胞依赖pH平衡来维持生存和增殖.
- 目前的策略通常只针对细胞内或细胞外的pH值.
- 为了增强瘤抑制,需要对pH破坏采取双重方法.
研究的目的:
- 开发一种生物模拟微粒,用于同时输送西罗斯平 (Syr) 和多克索鲁比辛前药物 (Dox-EMCH).
- 在瘤组织中破坏细胞内和细胞外的pH值.
- 为了实现协同化学疗法和免疫疗法,以有效抑制瘤.
主要方法:
- 生物模拟瘤细胞衍生微粒的开发.
- 同时封装西罗斯平 (Syr) 和多克索鲁比辛前药物 (Dox-EMCH).
- 通过Syr抑制乳酸流出,以破坏pH稳态.
- 通过细胞内酸性激活Dox-EMCH.
主要成果:
- 在瘤细胞中破坏细胞内和细胞外的pH平衡.
- 化学疗法和免疫疗法的协同效应.
- 通过减轻细胞外酸性来调节瘤微环境 (TME).
- 恢复免疫细胞活动,促进抗瘤免疫反应.
结论:
- 仿生微粒有效地破坏瘤pH稳态.
- 同时提供Syr和Dox-EMCH可诱导免疫细胞死亡和抗瘤免疫力.
- 这种双重pH准策略为癌症治疗提供了一种有前途的方法.
相关概念视频
Tumor Immunotherapy
2.1K
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
2.1K
The Tumor Microenvironment
8.0K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
8.0K
Targeted Cancer Therapies
9.0K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
9.0K
Combination Therapies and Personalized Medicine
6.2K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
6.2K
Cancer Therapies
10.3K
Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...
10.3K


