TIPRL1及其依赖ATM的酸化促进了头癌的放射治疗耐药性
Célie Cokelaere1,2, Rüveyda Dok2,3, Emanuela E Cortesi4
1Laboratory of Protein Phosphorylation & Proteomics, Department of Cellular & Molecular Medicine, University of Leuven (KU Leuven), B-3000, Leuven, Belgium.
Cellular oncology (Dordrecht, Netherlands)
|November 16, 2023
概括
拉巴胺素信号通路调节器类型1 (TIPRL1) 的标促进了头部和部状细胞癌 (HNSCC) 的放射治疗耐药性. 它的ATM-依赖的酸化和与基因素的相互作用是关键机制,表明TIPRL1作为治疗点.
科学领域:
- 分子瘤学分子瘤学
- 辐射生物学 辐射生物学
- 癌症治疗方法 癌症治疗方法
背景情况:
- 拉巴胺素信号通路调节器类型1 (TIPRL1) 的标调节参与DNA损伤反应 (DDR) 的蛋白质酸酶.
- 在头部和部状细胞癌 (HNSCC) 放射治疗 (RT) 反应中TIPRL1的作用尚不清楚.
研究的目的:
- 调查TIPRL1在HNSCC的放射治疗反应中的作用.
- 确定HNSCC治疗的潜在预测标记物和治疗点.
主要方法:
- 在HNSCC患者样本中分析TIPRL1mRNA和蛋白质表达.
- 在HNSCC细胞中,CRISPR/Cas9介导的TIPRL1耗尽,以评估RT敏感性,细胞周期,DDR信号传递和蛋白质组变化.
- 对TIPRL1酸化的质谱学和辐射后的相互作用学分析.
主要成果:
- 在HNSCC瘤中增加TIPRL1表达与RT后较差的局部区域控制和生存相关.
- 删除TIPRL1增强了HNSCC细胞的辐射敏感性,改变了细胞循环停止,并改变了DDR信号.
- 对于RT耐药性而言,ATM依赖TIPRL1在Ser265的酸化至关重要;发现了包括DNA-PKcs和基因素在内的新型相互作用体.
结论:
- 通过调节DDR,TIPRL1在HNSCC无线电阻中发挥着重要作用.
- 对TIPRL1的ATM依赖酸化是赋予耐药性的关键机制.
- 在接受放射治疗的HNSCC患者中,TIPRL1代表了一个潜在的预测生物标志物和治疗标.
关键词:
过敏症 长长生 突变 (ATM) 激酶基因损伤反应 (DDR) 是指对DNA损伤的反应.取决于DNA的蛋白激酶催化子单元 (DNA-PKcs)头部和部状细胞癌 (HNSCC)互动动学 (Interactomics) 是一个学科.核体组组组织基因组的核体组组组织基因组.在PP2A中,PP2A是PP2A.类似PP2A的酸酶.PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4 PP4PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6 PP6蛋白质组学是指蛋白质组学.在Rad51复合酶中,Rad51是重组酶.无线电阻可以抵抗辐射.拉巴胺素信号通路调节器类型1 (TIPRL1) 的目标更多相关视频
相关概念视频
Receptor Tyrosine Kinases
13.0K
Receptor tyrosine kinases or RTKs are membrane-bound receptors that phosphorylate specific tyrosine on protein substrates. RTKs regulate cellular growth, differentiation, survival, and migration. They contain an extracellular ligand binding domain, a transmembrane domain, and a cytosolic tail with intrinsic kinase activity. Several extracellular signaling molecules activate RTKs in one or more ways and relay the signal downstream. Ligands such as platelet-derived growth factor (PDGF) or...
13.0K
Treatment Resistant Cancers
3.3K
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...
3.3K
Targeted Cancer Therapies
7.7K
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...
7.7K
mTOR Signaling and Cancer Progression
3.8K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.8K
PI3K/mTOR/AKT Signaling Pathway
3.6K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
3.6K
DNA Damage can Stall the Cell Cycle
9.2K
In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
9.2K


