相关实验视频
Updated: Jul 27, 2025

08:50
Predictive Immune Modeling of Solid Tumors
Published on: February 25, 2020
7.0K
用免疫检查点抑制剂治疗的不同癌症实体中的伪进展模式
Sebastian Mönch1, Maurice M Heimer1, Michael Winkelmann1
1Department of Radiology, University Hospital, LMU Munich, Marchioninistr. 15, Munich, 81377, Germany.
概括
伪进展 (PsPD) 是免疫检查点抑制剂 (ICI) 治疗的罕见反应. 像病变进展和新病变这样的成像特征是常见的,有时与免疫相关的不良事件 (irAE) 相相关.
科学领域:
- 在瘤学瘤学.
- 放射学 放射学是一门学科.
- 免疫治疗是一种免疫疗法.
背景情况:
- 伪进展 (PsPD) 是一种不常见的反应模式,在免疫检查点抑制剂 (ICI) 治疗期间观察到.
- 了解PsPD的成像特征对于准确的治疗评估至关重要.
研究的目的:
- 在接受ICI治疗的患者中识别与PsPD相关的成像特征.
- 探索PsPD和其他临床发现,如瘤标志物和免疫相关不良事件 (irAE) 之间的相关性.
主要方法:
- 对32名患有PsPD的患者进行了回顾性分析,这些患者接受了至少三项成像研究.
- 使用固体瘤免疫反应评估标准 (iRECIST) 评估治疗反应.
- 对目标病变 (TL),非目标病变 (NTL),新病变 (NL),瘤标志物和irAE.的分析.
主要成果:
- 在第一次随访 (FU1) 时,psdp最常见,在81.3%的患者中观察到.
- 常见的成像发现包括TL (37.5%),NTL (21.9%) 和新病变 (18.8%) 的增加.
- 在43.8%的患者中,PsPD与irAE相关;瘤标志物仅在10.5%的病例中升高.
结论:
- PsPD通常在ICI治疗的早期表现出来,主要是由于TL和NTL的进展.
- 虽然瘤标志物可能并不总是上升,但PsPD似乎与irAE有关.
- 这些成像见解可以帮助临床决定关于ICI延续.
相关概念视频
Tumor Progression
6.4K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.4K
Tumor Immunotherapy
575
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.
575
Treatment 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
Adaptive Mechanisms in Cancer Cells
5.8K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
5.8K

