在缺血损伤中GSK和CREB交叉的机制影响
Heena Khan1, Annu Bangar1, Amarjot Kaur Grewal1
1Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India.
Neurotoxicity research
|December 13, 2023
概括
缺血-再输液损伤会导致细胞死亡,但激活GSK/CREB通路可以提高细胞存活率. 这一途径为在血液流量减少后管理器官损伤提供了一个有希望的策略.
科学领域:
- 细胞生物学 细胞生物学
- 生理学 生理学 生理学
- 病理学 病理学 病理学
背景情况:
- 缺血-再输液 (IR) 损伤是由于血液供应不足造成的,导致细胞功能障碍和脏,肝脏和大脑等器官的死亡.
- 红外伤害会触发细胞应激,包括氧化应激,过载,炎症和亡,可能导致全身损伤.
- 循环AMP响应元素 (CRE) 结合蛋白 (CREB) 信号的功能障碍与各种疾病有关,包括IR损伤.
研究的目的:
- 探索GSK/CREB信号通路在缓解缺血-再输液损伤中的保护作用.
- 调查GSK-3和CREB在IR损伤期间改变的各种信号通路中的参与.
- 要突出GSK-3和CREB在促进细胞存活和抵抗缺血的过程中的交叉声.
主要方法:
- 对参与IR损伤的信号通路的现有文献的审查.
- 对GSK-3和CREB对IR反应的调制进行分析.
- 检查-卡尔莫杜林依赖蛋白激酶 (CaMK) 在CREB激活中的作用.
主要成果:
- 激活CREB促进细胞存活,增强对缺血性疾病的抵抗力.
- 在受IR损伤影响的多个信号通路中,GSK-3和CREB充当下游目标.
- 缺血期间的过载会激活CaMK,而CaMK反过来会激活CREB介导的转录,促进细胞存活.
结论:
- GSK/CREB信号通路显示,在缺血后,各种器官中的细胞具有显著的保护潜力.
- 针对GSK/CREB途径代表了管理缺血-再输液损伤的未来战略.
- GSK-3和CREB之间的交叉对提高细胞存活率和对随后的缺血事件产生抵抗力至关重要.
相关概念视频
cAMP-dependent Protein Kinase Pathways
6.4K
Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...
6.4K
Interactions Between Signaling Pathways
6.3K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.3K
Intracellular Signaling Affects Focal Adhesions
2.7K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Some...
2.7K
MAPK Signaling Cascades
5.6K
Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
5.6K
Regulation of Angiogenesis and Blood Supply
2.6K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.6K


