在HNSCC中差异性免疫检查点蛋白表达:HGF/MET信号传递的作用
Verena Boschert1, Johannes Boenke1, Ann-Kathrin Böhm1
1Department of Oral and Maxillofacial Plastic Surgery, University Hospital Wuerzburg, D-97070 Würzburg, Germany.
International journal of molecular sciences
|July 13, 2024
概括
维斯塔是头部和部状细胞癌 (HNSCC) 细胞中最常见的免疫检查点连接体. 肝细胞生长因子 (HGF) 影响检查点连接体表达,可能影响HNSCC的治疗耐药性.
科学领域:
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 针对PD1/PD-L1的免疫检查点抑制剂显示出有前途,但在头部和部状细胞癌 (HNSCC) 患者的一个子集中有效性有限.
- 不响应的HNSCC瘤可能具有可以治疗向的替代免疫检查点.
- 肝细胞生长因子 (HGF) 和其受体MET信号通路与癌症进展和免疫逃避有关.
研究的目的:
- 为了研究HNSCC瘤细胞系上各种免疫检查点配体的表达特征.
- 为了确定HGF/MET信号对这些检查点连接体的表达的影响.
- 为了确定 HNSCC 中不对 PD1/PD-L1 阻塞有反应的潜在的替代性免疫点.
主要方法:
- 利用mRNA测序来识别六个HNSCC细胞系中的检查点连接体表达.
- 采用基于抗体的技术来验证和量化检查点连接体表达.
- 评估了HGF刺激对HNSCC细胞系检查点配体水平的影响.
主要成果:
- 在HNSCC细胞系中,VISTA在研究的检查点体中表现出最高和最无处不在的RNA表达.
- PD-L2和B7-H3在细胞系中表达率较低和可变,而B7-H4只在底特律562细胞系中检测到.
- 高GF刺激增强了PD-L2表达,但降低了其他检查点连接体,特别是B7-H4,表明其具有复杂的调节作用.
结论:
- 维斯塔代表HNSCC.中高度表达和广泛分布的免疫检查点连接体.
- HGF信号差异调节HNSCC中的免疫检查点连接体表达,这对治疗耐药性有影响.
- HGF/MET信号与检查点连接物如B7-H4之间的相互作用值得进一步研究,特别是关于其与上皮-介质酶过渡的联系.
关键词:
B7-H4 B7-H4 B7-H4 B7-H4 B7-H4 B7-H4 B7-H4 B7-H4 B7-H4 B7-H4 B7-H4在EMT中,EMT是EMT.在HGF的基础上.在HNSCC中,我们可以看到HNSCC.ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI IC1 ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI ICI IC1 IC1 IC1 IC1 IC1 IC2 IC2 IC2 IC2 IC1 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 IC2 which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which which在ICOSL中,ICOSL是指ICOSL.在MET中,MET是MET.在PD-L1中.在PD-L2中使用.在视野中看到的.相关概念视频
Mitogens and the Cell Cycle
6.4K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.4K
Hedgehog Signaling Pathway
7.3K
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
7.3K
Role Of Notch Signalling In Intestinal Stem Cell Renewal
2.1K
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
2.1K
Regulation of Hematopoietic Stem Cells
3.2K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.2K
Metastasis
5.5K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.5K
TGF - β Signaling Pathway
7.3K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
7.3K


