居住转录活性微生物 (TAM) 和宿主基因之间的功能动态是登革热严重程度的基础
Pallawi Kumari1,2, Priti Devi1, Basudha Banerjee1
1Division of Infectious Disease Biology, INtegrative GENomics of Host-PathogEn (INGEN-HOPE) laboratory, CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Mall Road, Delhi, India.
PLoS neglected tropical diseases
|December 19, 2025
概括
这项研究揭示了特定的微生物和宿主基因如何相互作用,从而影响登革热病的严重程度. 机器学习确定了与严重登革热患者免疫失调相关的关键微生物和宿主因素.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 免疫学 免疫学 免疫学
- 计算生物学 计算生物学
背景情况:
- 宿主-微生物相互作用对于了解疾病至关重要.
- 微生物组影响宿主基因表达和生理学.
- 登革热病毒感染影响宿主免疫和代谢功能.
研究的目的:
- 研究转录活性微生物 (TAM) 在登革热患者中的作用.
- 在登革热感染期间通过微生物活动调节的宿主基因的识别.
- 了解宿主和微生物转录组在登革热病严重程度中的相互作用.
主要方法:
- 来自登革热患者的112个全血转录组的分析.
- 双RNA测序数据的整合.
- 机器学习框架的应用,包括拉索回归和稀疏的正规相关性分析 (SCCA).
主要成果:
- 识别共享和特定于疾病的宿主微生物转录组合的转录组合.
- 特定的机会性微生物 (例如,阿塞托巴克特 - 迦南尼斯,阿克罗巴克特sp. B7) 与严重登革热的免疫失调有关.
- 宿主基因 (例如,PPME1,TIMP2,NLRC4,RhoB) 与严重登革热患者的免疫失调的关联.
结论:
- 转录活跃的微生物和特定的宿主基因在登革热病理生理学中起着不同的作用.
- 这些发现突出了登革热期间宿主微生物相互作用中的疾病特异性分子通路.
- 了解这些相互作用可能会为登革热的新型治疗策略提供信息.
相关概念视频
Exon Recombination
4.0K
The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes.
Exon shuffling follows “splice frame rules.” Each exon...
Exon shuffling follows “splice frame rules.” Each exon...
4.0K
Gene Regulation in Microbial Communities: Quorum Sensing
463
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
463
General Transcription Factors
6.6K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
6.6K
Transduction
1.1K
Among the three main modes of HGT—transformation, conjugation, and transduction—transduction is unique in that it is mediated by bacteriophages, or bacterial viruses.Transduction occurs in two ways. Generalized transduction occurs during the lytic cycle of a bacteriophage infection. In this process, bacteriophages infect bacterial cells, replicate within them, and ultimately cause cell lysis, releasing newly assembled virions. Occasionally, random fragments of the bacterial genome...
1.1K


