病原体诱导的主体SUMOylation的劫持:从分子机制和治疗调制的前景
Sandhya Padmakumar1, Aravind Madhavan1, Bipin G Nair1
1Amrita School of Biotechnology, Amrita Vishwa Vidyapeetham, Kollam, India.
Frontiers in immunology
|December 17, 2025
概括
病原体利用宿主SUMOylation (小型乌比基类修饰剂) 逃避免疫反应并促进生存. 向SUMOylation途径为针对传染病的宿主导疗法提供了一个有希望的策略.
科学领域:
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 翻译后修饰 (PTMs) 调节蛋白质功能和细胞适应.
- SUMOylation (小型乌比基类修饰剂) 是一个关键的PTM参与细胞平衡.
- 病原体操纵宿主SUMOylation,以颠覆免疫反应并提高生存率.
研究的目的:
- 审查SUMOylation在传染病中的作用.
- 探索SUMOylation和宿主信号通路之间的相互作用.
- 检查病原体对操纵SUMOylation的策略.
主要方法:
- 对SUMOylation和传染病研究的文献综述.
- 对宿主SUMOylation机械的病原体操纵的分析.
- 调查SUMOylation与其他PTM交叉交叉的研究.
主要成果:
- 病原体劫持SUMOylation以抑制免疫信号 (例如NF-κB,MAPK,JAK-STAT,干扰素通路).
- 细菌,病毒和真菌病原体通过SUMOylation重新编程宿主染色体并逃避防御.
- 在宿主-病原体界面上,SUMOylation 与无处不在,酸化和乙化相互作用.
结论:
- 在感染期间,SUMOylation是宿主免疫反应的关键调节者.
- 准SUMOylation通路为传染病提供了一个可行的治疗策略.
- 通过SUMOylation调节恢复免疫能力可以缓解持久性感染.
相关概念视频
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
Covalently Linked Protein Regulators
8.6K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
8.6K
Microorganisms in Medicine and Therapeutics
914
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.
914
Translational Regulation
507
Translational regulation in prokaryotes ensures efficient protein synthesis by controlling ribosome access to mRNA. This regulation is mediated by secondary RNA structures, including translational riboswitches, RNA thermometers, and small RNAs (sRNAs), which respond to intracellular and environmental signals to modulate gene expression.Translational RiboswitchesRiboswitches in the leader region of mRNAs can regulate translation by altering the accessibility of the Shine-Dalgarno (SD) sequence,...
507
Leaky Scanning
5.6K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.6K
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


