打破免疫抑制以增强癌症干细胞向免疫疗法
Fang Zheng1, Shan Zhang2, Alfred E Chang3
1Department of Pediatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China.
International journal of biological sciences
|February 24, 2025
概括
针对癌症干细胞 (CSC) 的免疫疗法显示出希望,但受到免疫抑制的阻碍. 在CSCs上阻断编程细胞死亡配体-1 (PD-L1) 可以提高治疗效率.
科学领域:
- 免疫治疗是一种免疫疗法.
- 癌症生物学 癌症生物学
- 瘤微环境 瘤微环境
背景情况:
- 癌症干细胞 (CSCs) 是瘤生长和复发的关键驱动因素.
- 编程细胞死亡联体-1 (PD-L1) 在CSCs中的过度表达会产生免疫抑制瘤微环境 (TME).
- 这种免疫抑制限制了当前针对CSC的免疫疗法的疗效.
研究的目的:
- 审查PD-L1在CSC特性和TME相互作用中的作用.
- 探索针对CSC和克服免疫抑制的新型免疫治疗策略.
- 突出最近在CSC向免疫疗法的进展和未来方向.
主要方法:
- 关于PD-L1,CSC和免疫治疗的文献综述.
- 对CSC向性疫苗 (DC,ND),双特异性抗体 (BiAbs),抗体-药物合物 (ADC),CAR-T和NK细胞疗法的分析.
- 检查在TME中中断免疫抑制的策略.
主要成果:
- 在CSC上的PD-L1积极促进TME内的免疫逃避.
- 各种治疗方式显示出向CSC和阻断免疫抑制的潜力.
- 抑制CSC相关的信号通路是一个可行的策略.
结论:
- 同时准CSC和免疫抑制对于有效的癌症免疫疗法至关重要.
- 像CAR-T,NK细胞疗法和新型疫苗等新兴策略提供了有希望的途径.
- 对PD-L1调节和TME交叉声的进一步研究对于临床转化至关重要.
相关概念视频
Tumor Immunotherapy
463
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.
463
Cancer Stem Cells and Tumor Maintenance
4.7K
Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
4.7K
Targeted Cancer Therapies
7.4K
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...
7.4K
Stem Cell Therapy for Tissue Regeneration
4.0K
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
4.0K
Combination Therapies and Personalized Medicine
4.8K
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...
4.8K
Cancer Vaccines
325
Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
325


