超越重力:利用基因可塑性缓解太空飞行引起的病理
1Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.
Proteomics
|June 28, 2025
概括
太空飞行会改变心脏细胞中的基因表达,影响心血管疾病的风险. 研究人员确定了潜在的药物来逆转这些太空诱导的分子变化,帮助宇航员的健康.
科学领域:
- 心血管生物学 心血管生物学
- 太空医学 太空医学
- 分子生物学分子生物学
背景情况:
- 太空探索的可访问性需要了解太空飞行对人类生理学的分子影响.
- 空间诱导的变化可以破坏信号通路,影响心血管,神经和肌肉骨系统.
研究的目的:
- 为了研究人类诱导的多能干细胞衍生心肌细胞 (hiPSC-CMs) 暴露在太空飞行中的基因表达改变.
- 为了确定与太空飞行有关的心血管变化分子标和潜在的治疗剂.
主要方法:
- 使用的hiPSC-CM受到太空飞行和飞行后条件的影响.
- 分析基因表达特征,重点关注心血管疾病 (CVD) 和NRF2氧化应激通路.
- 进行了计算药物重定向分析,以确定潜在的治疗候选者.
主要成果:
- 在太空飞行期间和之后确定了与心血管疾病和NRF2途径相关的hiPSC-CMs中一致的定向基因表达变化.
- 发现了十种候选药物,能够逆转太空飞行引起的心肌细胞的转录基因变化.
结论:
- 太空飞行诱导了与心血管健康相关的心肌细胞中的显著分子变化.
- 计算药物重定向显示出对开发对抗太空飞行生理影响的对策的希望.
- 多原子研究对于保护宇航员在太空探索中的健康至关重要.
更多相关视频
09:28Culturing Lymphocytes in Simulated Microgravity Using a Rotary Cell Culture System
Published on: August 25, 2022
3.0K
13:59Reduced-gravity Environment Hardware Demonstrations of a Prototype Miniaturized Flow Cytometer and Companion Microfluidic Mixing Technology
Published on: November 13, 2014
13.9K
相关概念视频
What is Genetic Engineering?
75.6K
Overview
75.6K
Gene Therapy
25.9K
Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
25.9K
Somatic to iPS Cell Reprogramming
2.3K
Reprogramming alters the gene expression in somatic cells, transforming them into induced pluripotent stem (iPS) cells over several generations. Scientists can reprogram cells by introducing genes for four transcription factors—Oct4, Sox2, Klf4, and c-Myc (OSKM) by viral or non-viral methods. These factors are also known as Yamanaka factors after Shinya Yamanaka, who first generated iPS cells using mouse skin cells. Yamanaka was awarded the Nobel Prize in Physiology or Medicine in 2012...
2.3K
Microorganisms in Medicine and Therapeutics
360
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
360
