铁过载是由于SLC40A1突变的4型遗传性血红色素变异
Jing Hu1,2, Yuan Li1,2, Li Zhang1,2
1State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, 300020, China.
Medical molecular morphology
|June 29, 2023
概括
遗传性血色素变异4B型,是一种罕见的铁过载疾病,涉及SLC40A1基因突变. 这项研究详细介绍了一种新的病例和有效的治疗方法,该方法是使用红细胞疏散和deferasirox.
科学领域:
- 遗传学和分子生物学
- 血液学 血液学 血液学
- 代谢障碍 代谢障碍 代谢障碍
背景情况:
- 遗传性血色素变异4型是一种自体主导性疾病,由SLC40A1基因的突变引起,该基因编码费罗波丁.
- 它被分为4A型 (功能丧失) 和4B型 (功能获取) 突变.
- 4B型是罕见的,报告的病例有限,治疗策略不明.
研究的目的:
- 报告一种新的4B型遗传性血红色素病的基因型.
- 描述这种罕见病症患者的治疗方法及其有效性.
- 为了解4B型遗传性血红色素病的治疗选择做出贡献.
主要方法:
- 基因组测序发现了SLC40A1基因中的异构细胞c.997T>C (p.Tyr333His) 突变.
- 这位患者每月接受红细胞缩治疗,持续了一年.
- 口服deferasirox作为后续治疗进行.
主要成果:
- 在SLC40A1中发现了一种特定的异构基因突变 (p.Tyr333His),证实了4B型遗传性血色素变异.
- 结合治疗红细胞疏散和口服deferasirox证明了在管理条件的有效性.
- 这种治疗方法为类似的病例提供了潜在的治疗策略.
结论:
- 这种病例扩大了已知的4B型遗传性血色素病的基因型谱.
- 结合红细胞非和deferasirox代表一种可行的和有效的治疗方案为遗传性血红色素瘤4B型.
- 需要进一步的研究来建立这种罕见疾病的标准化治疗方案.
相关概念视频
Translation
142.5K
Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of...
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of...
142.5K
Necrosis
4.6K
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
4.6K
Cardiomyopathy IV: Restrictive Cardiomyopathy
12
Restrictive cardiomyopathy (RCM) is a rare heart muscle disease characterized by impaired ventricular filling due to stiffened ventricular walls, leading to significant diastolic dysfunction.EtiologyRestrictive cardiomyopathy can arise from both inherited and acquired diseases, many of which are systemic. It is categorized into four main types: infiltrative, storage, non-infiltrative, and endomyocardial diseases.Infiltrative diseases, such as amyloidosis, lead to RCM by depositing amyloid...
12
Disorders of Erythrocytes
1000
Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
1000
Cardiomyopathy III: Hypertrophic Cardiomyopathy
17
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
17
Electron Transport Chain: Complex I and II
14.6K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
14.6K


