STIMATE-Mustn1 融合蛋白 防止细胞中Ca2+过载,这些细胞呈现增加的SOCE
Alejandro Berna-Erro1, Pedro J Camello2, María P Granados3
1Department of Physiology (Ficell Group), University of Extremadura, Cáceres, Spain.
概括
新生儿血小板表现出改变的储存运行的进入 (SOCE). STIMATE-mustn1蛋白似乎限制了新生儿中这种恶化的SOCE,这表明它在血小板信号传递中起着调节作用.
科学领域:
- 细胞生物学 细胞生物学
- 生物化学 生物化学
- 生理学 生理学 生理学
背景情况:
- 储存运行的进入 (SOCE) 对血小板功能至关重要.
- 与成人血小板相比,新生儿血小板显示变化的SOCE.
- 新生儿血小板SOCE中STIMATE的作用及其与mustn1的相互作用尚不清楚.
研究的目的:
- 研究 STIMATE 翻译的变化和 STIMATE-mustn1.1 的形成.
- 分析新生儿血小板中SOCE中STIMATE-mustn1的参与.
- 探索STIMATE和STIMATE-mustn1对细胞周期和蛋白质定位等细胞过程的影响.
主要方法:
- 在新生儿和成人血小板中对STIMATE,mustn1和STIMATE-mustn1表达的比较分析.
- 在MEG-01细胞过度表达STIMATE或STIMATE-mustn1.1中的流实验.
- 同焦显微镜评估Orai1和STIM1的同定位和细胞内定位模式.
- 使用流细胞计进行细胞周期分析.
主要成果:
- 在新生儿和成人血小板之间观察到STIMATE,mustn1和STIMATE-mustn1的明显表达模式.
- 对STIMATE的Mustn1结合会损害其在SOCE中的功能,而单独的Mustn1过度表达不会影响SOCE.
- STIMATE过度表达改变了Orai1和STIM1的同定位,并阻止了G2阶段的细胞循环,而STIMATE-mustn1过度表达没有.
- STIMATE和STIMATE-mustn1显示出不同的细胞内局部化模式.
结论:
- 新生儿血小板中STIMATE-mustn1的形成可能有助于调节和限制这些细胞中观察到的高SOCE.
- 在SOCE中,Mustn1作为STIMATE作用的抑制剂.
- STIMATE表达影响细胞周期的进展,这是STIMATE-mustn1.n不共享的功能.
相关概念视频
Tagging and Fusion Proteins
8.5K
Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...
8.5K
Nuclear Fusion
33.9K
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons.
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
33.9K
Increasing Function
402
An increasing function exhibits a rise in output values as input values increase. This behavior is depicted graphically as a curve or line that slopes upward from left to right. Such a function satisfies the condition that if x1 < x2, then f(x1) < f(x2), indicating that the function values grow with increasing inputs. This concept is fundamental in understanding growth trends across various domains, such as population dynamics, financial investments, or resource consumption.The...
402
Cancer Prevention
8.2K
Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Some...
8.2K
Increased Body Temperature
7.5K
A body temperature above 38°C (100.4 °F) is known as fever or pyrexia, and a person with fever is termed 'febrile.' Typically, the hypothalamus, a part of the brain that acts as the body's thermostat, regulates body temperature through a thermoregulatory setpoint. It receives signals from cold and warm thermal receptors throughout the body and adjusts the body's temperature accordingly. Fever occurs when this hypothalamic setpoint is altered, usually in...
7.5K
Increased pulse rate
1.2K
Tachycardia is a condition marked by an abnormally fast or irregular heart rate, surpassing the typical resting rate. In adults, tachycardia is characterized by a pulse rate ranging from 100 to 180 beats per minute. The increased heart rate can result in inadequate blood flow to various body parts, ultimately diminishing the oxygen supply to organs and tissues.
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
Many factors can elevate the risk of developing tachycardia. These include advanced age, a family history of arrhythmias, and an...
1.2K


