相关实验视频
Updated: Jul 18, 2025

10:23
Evaluation of Caspase Activation to Assess Innate Immune Cell Death
Published on: January 20, 2023
3.3K
卡斯帕酶5的枯竭与高炎症反应和孕激素综合征有关
Fuki M Hisama1, Renuka Kandhaya Pillai2, Julia Sidorova2
1Department of Medicine, Division of Medical Genetics, University of Washington, Seattle, USA.
GeroScience
|August 21, 2023
概括
一种导致快速衰老的罕见遗传疾病与故障的CASP5基因有关,该基因通常调节炎症. 这一发现突出了慢性炎症或炎症,作为前列腺综合征和潜在的正常衰老过程的关键因素.
科学领域:
- 遗传学 是一个遗传学.
- 免疫学 免疫学 免疫学
- 衰老研究研究 衰老研究
背景情况:
- 孕激素综合征是一种罕见的遗传疾病,其特征是过早衰老.
- 炎症在衰老中起作用,这一概念被称为炎症.
- 许多前列腺综合征的特定遗传基础仍然不清楚.
研究的目的:
- 为了调查前列腺家族疾病的遗传原因.
- 探索炎症性酶5在衰老表型中的作用.
- 为了确定炎症是否是前列腺综合征和正常衰老的共享机制.
主要方法:
- 基因测序,以识别前列腺家族中的变异.
- 纤维细胞培养物研究caspase 5的功能.
- 对刺激的反应中炎症性细胞因子产生的评估.
主要成果:
- 在受影响的家族中发现了CASP5基因的致病变体.
- 卡斯帕酶5贫乏的纤维细胞显示炎症性细胞因子释放的增加.
- 这表明CASP5功能障碍,超炎症和加速衰老之间存在联系.
结论:
- 在CASP5中的突变可以通过慢性炎症引起前类表型.
- 炎症是前列腺综合征的潜在统一机制.
- 这一发现可能有助于了解衰老过程和与年龄相关的疾病.
相关概念视频
Caspases
12.6K
Caspase, a family of cysteine proteases, serve as effectors in apoptosis. The ced3 gene in C.elegans was first identified to be involved in apoptosis. This gene encodes the ced-3 caspase that is similar to the interleukin-1-beta converting enzyme or ICE in mammals. In addition to apoptosis, caspases also function in the inflammatory response. Inflammatory caspases are essential in activating pro-inflammatory cytokines that recruit immune cells and block the replication of pathogens inside...
12.6K
The Extrinsic Apoptotic Pathway
6.4K
The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...
6.4K
The Intrinsic Apoptotic Pathway
6.6K
Internal cellular stress, such as cellular injury or hypoxia, triggers intrinsic apoptosis. The B-cell lymphoma 2 (Bcl-2) family of proteins are the primary regulators of the intrinsic apoptotic pathway. For example, during DNA damage, checkpoint proteins, such as Ataxia Telangiectasia Mutated (ATM protein) and Checkpoints Factor-2 (Chk2) proteins, are activated. These proteins phosphorylate p53 which further activates pro-apoptotic proteins, such as Bax, Bak, PUMA, and Noxa, and inhibits...
6.6K
Cystic Fibrosis: Pathogenesis
280
Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
280
Apoptosis
11.6K
Apoptosis is a combination of two Greek words, 'apo' and 'ptosis,' meaning separation and falling off, respectively. Hippocrates used this word to describe gangrene, which was caused due to bandaging of fractured bones. Apoptosis was distinguished from necrosis in 1970 when John Kerr reported observations of morphological changes occurring during apoptosis. During one experiment, he observed that the disruption of blood supply to the liver tissue resulted in a size...
11.6K
Inflammatory Response
2.1K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
2.1K

