在CAR T疗法中解除骨髓性耐药性
John M Warrington1, Nathan Singh1
1Division of Oncology, Section of Cellular Therapy, Washington University School of Medicine, St. Louis, MO, USA; Center for Gene and Cellular Immunotherapy, Washington University School of Medicine, St. Louis, MO, USA.
Cancer cell
|June 27, 2025
概括
研究人员发现一种特定的免疫细胞类型阻碍了B细胞淋巴瘤的CAR T细胞治疗. 抑制CSF1R提高了这些抗癌细胞的有效性,提供了一个新的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 细胞疗法细胞疗法
背景情况:
- 化学抗原受体 (CAR) T细胞疗法对B细胞淋巴瘤有希望.
- 了解抵抗机制对于提高CAR T细胞治疗疗效至关重要.
研究的目的:
- 为了确定B细胞淋巴瘤中对CAR T细胞治疗的耐药性机制.
- 评估克服这种阻力的策略.
主要方法:
- 鉴定与治疗失败相关的特定免疫细胞群.
- 功能性试验用于评估在已识别的细胞群存在时的CAR T细胞活性.
- 在体内研究以评估CSF1R抑制的有效性.
主要成果:
- 一个表达CSF1R的髓状和单细胞细胞群被确定为CAR T细胞耐药性的关键因素.
- 这种髓状细胞群损害了针对CD19的CAR T细胞的功能.
- 抑制CSF1R信号传递显著提高了CAR T细胞治疗的疗效.
结论:
- 在B细胞淋巴瘤中,CSF1R+髓质细胞代表了对CAR T细胞疗法的新型抗药机制.
- 向CSF1R提供了一种有希望的策略,以提高B细胞淋巴瘤患者的CAR T细胞治疗结果.
更多相关视频
12:55Generation of CAR T Cells for Adoptive Therapy in the Context of Glioblastoma Standard of Care
Published on: February 16, 2015
21.5K
![Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F62334.jpg&w=3840&q=50)
09:34Dynamic Imaging of Chimeric Antigen Receptor T Cells with [18F]Tetrafluoroborate Positron Emission Tomography/Computed Tomography
Published on: February 17, 2022
3.5K
相关概念视频
02:56Treatment Resistant Cancers
3.4K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.4K
01:27Tumor Immunotherapy
667
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.
667