IFIT1 + 中性粒细胞是不良凝聚性癌症 (PCC) 免疫抑制特征的致病因素
Yuan-Jie Liu1,2,3, Jie-Pin Li3, Mei Han4
1Department of Oncology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, Jiangsu, China.
Journal of translational medicine
|June 19, 2024
概括
干扰素诱导蛋白与四基重复1 (IFIT1) 阳性瘤相关中性粒细胞 (TAN) 的高透是不良凝聚性癌症 (PCC) 的关键特征. 这些IFIT1+ TANs驱动PCC中的瘤进展和免疫疗法抵抗.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 癌症生物学 癌症生物学
背景情况:
- 缺乏凝聚力的癌症 (PCC) 对传统疗法反应有限,并发展出治疗耐药性.
- 瘤免疫微环境在PCC进展和治疗结果中起着至关重要的作用.
- 确定驱动PCC攻击性和抗性的特定细胞组件至关重要.
研究的目的:
- 调查免疫微环境的作用,特别是干扰素诱导蛋白与四基重复1 (IFIT1) 阳性瘤相关中性粒细胞 (TAN),在不良凝聚性癌症 (PCC) 中.
- 阐明IFIT1+ TANs对PCC进展,免疫抑制和抗PD-1免疫疗法的耐药性有所贡献的机制.
- 确定IFIT1+ TANs作为PCC的潜在治疗标.
主要方法:
- 临床队列和生物信息学数据的分析.
- 使用胃癌细胞系的体外实验 (MKN45,MKN74).
- 使用细胞衍生异种移植和小鼠模型的体内研究,包括瘤生长,入侵和对免疫治疗的反应的评估.
主要成果:
- IFIT1+ TANs的高透率是PCC患者的一个特征.
- IFIT1+ TANs促进胃癌细胞迁移,入侵和瘤生长.
- IFIT1+ TANs通过促进SPP1表达和招募/激活与癌症相关的纤维细胞和内皮细胞来促进介质细胞表型.
- PCC瘤比非PCC (NPCC) 瘤具有更强的免疫抑制作用.
- IFIT1+ TANs通过表达PDL1来促进对抗PD-1免疫疗法的获得性耐药性,这可能解释了患者反应不佳.
- 在TAN中IFIT1的表达是由IFN-γ刺激的.
结论:
- IFIT1+ TANs是PCC中瘤免疫微环境的关键组成部分,驱动瘤进展并调解免疫治疗的耐药性.
- 针对IFIT1+ TANs是PCC精度治疗的一个有希望的策略.
- 了解IFIT1+ TANs,瘤微环境和免疫治疗反应之间的相互作用对于改善PCC治疗结果至关重要.
更多相关视频
07:32Author Spotlight: Investigating Immune Cell Dynamics in the Tumor Microenvironment — Challenges and Innovations in Cancer Prognosis
Published on: April 12, 2024
1.3K
14:04Neutrophil Isolation and Analysis to Determine their Role in Lymphoma Cell Sensitivity to Therapeutic Agents
Published on: March 25, 2016
15.3K
相关概念视频
Tumor Immunotherapy
511
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.
511
Cytotoxic T Cells-mediated Immune Response
889
Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
889
The Tumor Microenvironment
6.6K
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...
6.6K
