相关实验视频
Updated: Jan 10, 2026
01:24
Nephrotic Syndrome I : Introduction
Published on: June 19, 2025
476
蛋白质胺酸酶LHPP是一种瘤抑制剂
Sravanth K Hindupur1, Marco Colombi1, Stephen R Fuhs2
1Biozentrum, University of Basel, 4056 Basel, Switzerland.
Nature
|March 22, 2018
概括
在癌症中扮演着一个角色. 胺酸酶LHPP作为瘤抑制剂,其在肝癌患者中的低表达表明存活率较低.
科学领域:
- 生物化学
- 癌症学
- 分子生物学
背景情况:
- 希斯蒂丁化是一种研究不足的翻译后修饰.
- 它在瘤形成中的作用仍然很大程度上不明.
- 已知NME1和NME2是哺乳动物中的胺激酶.
研究的目的:
- 在肝细胞癌 (HCC) 中研究化的作用.
- 描述假定酸酶LHPP的功能.
- 确定LHPP在HCC中的临床意义.
主要方法:
- 从mTOR驱动的HCC小鼠模型中对瘤进行蛋白质组分析.
- 对LHPP表达和活动的评估.
- 在体内评估LHPP对瘤负担和肝功能的影响.
- 对LHPP表达与患者瘤严重程度和存活率的相关性分析.
主要成果:
- 在HCC瘤中,NME1和NME2胺激酶的调节升高.
- 在HCC瘤中,胺酸酶LHPP的下调.
- 在肝脏瘤中,整体化度升高.
- 在小鼠模型中,LHPP表达抑制了瘤生长并保持了肝功能.
- 人类HCC患者的低LHPP表达与瘤严重性增加和生存率降低相关.
结论:
- LHPP是一种功能性蛋白质胺酶.
- 在肝细胞癌中,LHPP作为瘤抑制剂.
- 在HCC中放松调节的希斯蒂丁酸化是致癌的.
- 对于肝癌来说,LHPP是一个潜在的治疗点.
相关概念视频
Nephrotic Syndrome I : Introduction
476
Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of...
476
Glomerular Filtration
4.7K
The filtration membrane in the renal system is a highly specialized structure essential for filtering blood. It consists of glomerular capillaries and podocytes, forming a selective barrier that permits the passage of water and small solutes while restricting most plasma proteins and blood cells.
Components of the Filtration Membrane
The filtration process involves three key layers: the glomerular endothelial cells, the basement membrane, and the podocyte-formed filtration slits.
Components of the Filtration Membrane
The filtration process involves three key layers: the glomerular endothelial cells, the basement membrane, and the podocyte-formed filtration slits.
4.7K
Renal Corpuscle
6.9K
The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous...
6.9K
Confocal Fluorescence Microscopy
19.9K
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
19.9K
Nephrons
6.3K
The kidneys are intricate organs with millions of working units known as nephrons. Each nephron features two major structures: the renal corpuscle, which facilitates blood plasma filtration, and the renal tubule, which handles the glomerular filtrate. Blood supply is directly linked to the nephrons. The renal corpuscle consists of the glomerulus, a capillary network, and the Bowman's capsule, a double-walled epithelial structure that encases the glomerulus. The filtering of blood plasma...
6.3K
Glomerular Filtration Rate and its Regulation
5.0K
The Glomerular Filtration Rate (GFR) is a measure of kidney function, reflecting the volume of filtrate formed per minute in the kidneys. On average, GFR is approximately 125 mL/min in males and 105 mL/min in females. Maintaining a relatively constant GFR is essential for the kidneys to effectively regulate body fluid homeostasis and maintain extracellular stability.
GFR regulation involves two primary intrinsic controls: the myogenic and tubuloglomerular feedback mechanisms.
The myogenic...
GFR regulation involves two primary intrinsic controls: the myogenic and tubuloglomerular feedback mechanisms.
The myogenic...
5.0K