控制的饥饿:代谢物向Plasmodium falciparum中的染色体发出信号
Ruth Lappalainen1, Manish Kumar1, Manoj T Duraisingh1
1Department of Immunology and Infectious Diseases, Harvard T. H. Chan School of Public Health, Boston 02115, USA.
Current opinion in microbiology
|February 2, 2024
概括
疟疾寄生虫通过表观遗传学适应营养变化. 代谢物直接影响疟疾寄生虫的基因表达和组织蛋白代码,影响其生存和繁殖.
科学领域:
- 寄生虫学的寄生虫学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 人类疟疾寄生虫Plasmodium falciparum有一个复杂的生命周期,涉及哺乳动物和蚊子宿主.
- 环境营养物质的波动会影响寄生虫的生存和繁殖.
- 表观遗传机制对于调节疟疾寄生虫的基因表达至关重要.
研究的目的:
- 审查目前对代谢变化如何影响疟疾寄生虫表观遗传情景的理解.
- 探索营养物质可用性,代谢物驱动的表观遗传修饰和寄生虫基因表达之间的联系.
主要方法:
- 关于Plasmodium falciparum表观遗传学和新陈代谢的最近研究的文献综述.
- 分析特定代谢物作为表观遗传修饰基质的作用.
- 检查这些修改对寄生虫转录程序的影响.
主要成果:
- 代谢物,如乙-CoA和S-adenosylmethionine,是直接基质的基因组修饰.
- 营养物质可用性的变化会改变这些代谢物的细胞内度.
- 变化的代谢物水平导致基因组代码的修改,从而改变寄生虫基因表达模式.
结论:
- 代谢重编程是Plasmodium falciparum适应不同营养环境的关键策略.
- 了解新陈代谢和表观遗传学之间的相互作用对于开发新的抗疟疾策略至关重要.
- 针对影响基因组代码的代谢途径可能为疟疾控制提供新的途径.
相关概念视频
Chromatin Modification in iPS Cells
1.7K
Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells.
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...
1.7K
Symbiosis
28.0K
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...
28.0K
Calmodulin-dependent Signaling
5.1K
Calmodulin (CaM) is a calcium-binding protein in eukaryotes that controls various calcium-regulated cellular processes. It has four calcium-binding sites that bind calcium to form the calcium-calmodulin ( Ca2+-CaM) complex. GPCR stimulation increases the calcium levels in the cells that bind to CaM and induces a conformational change.
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
The Ca2+-CaM complex does not have enzymatic activity by itself. Instead, the complex binds downstream target proteins, including membrane proteins or enzymes,...
5.1K
PI3K/mTOR/AKT Signaling Pathway
3.6K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
3.6K
Amplifying Signals via Enzymatic Cascade
8.5K
When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze...
8.5K
Cell Signaling in Plants
5.6K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.6K


