这种TWEAK/Fn14信号传递在癌症缓解症期间调解骨肌肉损耗
Meiricris Tomaz da Silva1,2, Anirban Roy1,2, Anh Tuan Vuong1,2
1Institute of Muscle Biology and Cachexia, University of Houston College of Pharmacy, Houston, TX, USA.
iScience
|June 30, 2025
概括
准TWEAK/Fn14信号通路可以减少肌肉消耗和瘤生长在癌症缓解症. 在骨肌中抑制Fn14可减轻肌肉缩,为这种衰弱的疾病提供了潜在的治疗策略.
科学领域:
- 生物医学科学 生物医学科学
- 分子生物学分子生物学
- 在瘤学瘤学.
背景情况:
- 癌症缓解症涉及渐进的骨肌肉消耗.
- TWEAK-Fn14系统影响肌肉质量.
- 目前尚不完全了解TWEAK-Fn14在癌症缓解症中的作用.
研究的目的:
- 为了研究TWEAK-Fn14系统在癌症缓冲症中的作用.
- 确定是否针对TWEAK-Fn14信号可以改善肌肉消耗和瘤进展.
主要方法:
- 使用了胰腺和肺癌缓解症的小鼠模型.
- 执行了Fn14的肌肉特定删除.
- 评估肌纤维缩和瘤生长.
- 分析了与未折叠蛋白质反应 (UPR) 相关的基因表达.
- 在体外研究了PERK抑制的效果.
主要成果:
- 在癌症缓解症期间,骨肌肉中的Fn14水平升高.
- 在癌症模型中,肌肉特定的Fn14删除减少了肌纤维缩.
- 在癌细胞中抑制Fn14减弱了瘤的生长.
- 在Fn14删除调制的UPR组件 (PERK,IRE1α).
- 在受TWEAK治疗的细胞中,PERK抑制改善了蛋白质合成和肌管直径.
结论:
- TWEAK-Fn14通路与癌症缓解症相关的肌肉损耗有关.
- 抑制TWEAK/Fn14信号传递显示出治疗癌症缓存症的潜力.
- 准这种途径可能会减少瘤生长和肌肉损失.
相关概念视频
NF-κB-dependent Signaling Pathway
7.9K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.9K
Receptor Downregulation in MVBs
2.2K
Multivesicular bodies (MVBs) are mature endosomes that sort ubiquitinated proteins and then fuse with lysosomes to degrade the sorted proteins. Epidermal growth factor (EGF) and its receptor (EGFR) form a complex that can be internalized through endocytosis, sorted into an MVB, and later degraded.
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
2.2K
Non-Canonical Wnt Signaling Pathways
7.4K
Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
7.4K


