在疟疾寄生虫中通过内部和宿主线索协调囊细胞转录
Yuki Kobayashi1, Keisuke Komatsuya2,3, Sousuke Imamura1,4
1Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan.
概括
研究人员在疟疾寄生虫Plasmodium falciparum中发现了一种新的虫细胞西格玛因子. 这种因子apSig有助于调节虫细胞基因表达,并可能将寄生虫的发展与宿主昼夜节律联系起来,从而成为潜在的疟疾治疗点.
科学领域:
- 疟疾寄生虫生物学
- 器官 基因调节 基因调节
- 循环生物学的日间生物.
背景情况:
- 疟疾寄生虫Plasmodium falciparum拥有一个囊体,这是一个重要的非光合作用有机体,具有自己的基因组.
- 了解虫细胞基因表达调节对于寄生虫的生存和潜在的治疗点至关重要.
研究的目的:
- 为了确定控制在Plasmodium falciparum中的囊细胞基因表达的调节因素.
- 研究核编码因素在细胞转录积累中的作用.
- 探索虫细胞转录和寄生虫的昼夜或发育周期之间的联系.
主要方法:
- 核编码的虫细胞RNA聚合酶西格玛子单元 (apSig) 的识别和特征.
- 在各种条件下分析囊细胞转录水平.
- 研究黑激素对apSig基因表达和虫细胞转录的作用.
主要成果:
- 确定了一种核编码的虫细胞西格玛因子 (apSig),该因子与α子单元一起促进虫细胞转录的积累.
- 虫细胞基因表达表现出与寄生虫昼夜或发育控制相关的周期性.
- 在暴露于昼夜信号荷尔蒙 - - 黑激素 (melatonin) 时,apSig和细胞转录的表达增加.
结论:
- 虫细胞的西格玛因子 (apSig) 在调节虫细胞基因组转录中发挥着关键作用.
- 寄生虫囊细胞转录是通过将宿主昼夜节律与寄生虫内在线索相结合而协调的.
- 这种保守的监管体系为开发新的疟疾治疗方法提供了潜在的新目标.
更多相关视频
相关概念视频
01:27Diversity of Protists II
58
Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
58
00:58Symbiosis
28.9K
Symbiotic relationships are long-term, close interactions between individuals of different species that affect the distribution and abundance of those species. When a relationship is beneficial to both species, this is called mutualism. When the relationship is beneficial to one species but neither beneficial nor harmful to the other species, this is called commensalism. When one organism is harmed to benefit another, the relationship is known as parasitism. These types of relationships often...
28.9K