基因表达和Acanthamoeba分离物的蛋白质基因分析
Chayan Sharma1, Sumeeta Khurana1, Alka Bhatia2
1Department of Medical Parasitology, Postgraduate Institute of Medical Education & Research, Chandigarh, 160012, India.
Experimental parasitology
|October 11, 2023
概括
这项研究确定了关键的基因,如脂酶和脂酶参与阿坎萨摩巴病变的发生,这对于理解阿坎萨摩巴角膜炎和脑炎至关重要. 蛋白质组分析进一步揭示了病原性与非病原性分离物中的差异性蛋白质表达.
科学领域:
- 微生物学 微生物学
- 分子生物学分子生物学
- 寄生虫学的寄生虫学
背景情况:
- 阿坎塔莫巴是一种原生虫寄生虫,可引起严重的眼部感染 (阿坎塔莫巴角膜炎) 和脑部感染 (粒状虫脑炎).
- 了解阿坎塔梅巴病原体需要研究其与宿主免疫系统的相互作用.
- 基因组和蛋白质组分析对于识别毒性因素和病原机制至关重要.
研究的目的:
- 为了确定潜在的致病基因和Acanthamoeba中的蛋白质标.
- 分析病原性与非病原性阿坎萨摩巴菌分离物中的差异性基因表达.
- 为了研究PHMB治疗对Acanthamoeba蛋白质表达的影响.
主要方法:
- 使用常规和实时PCR选择和验证候选致病基因 (lysophospholipase,phospholipase,S8/S53酶,carboxylesterase,mannose结合蛋白).
- 在Acanthamoeba角膜炎和脑炎的动物模型中对相对基因表达的评估.
- 在PHMB治疗之前和之后,使用LC-MS/MS对病原性和非病原性分离物的蛋白质组分析.
主要成果:
- 传统的PCR证实了临床和环境Acanthamoeba分离物中选择基因的存在.
- 在Acanthamoeba角膜炎期间,在角膜炎分离体中观察到光酶,溶解光酶和曼结合基因的显著上调.
- 在脑炎隔离物中,脂酶,光酶,S8/S53酸酶和氧化酶基因被上调.
- 蛋白质组数据显示了病原性和非病原性分离物之间的蛋白质表达差异,有或没有PHMB治疗.
结论:
- 溶解脂酶,脂酶,S8/S53酸酶,碳素酶和曼诺结合蛋白都涉及到阿坎萨摩巴病原体的发生.
- 蛋白质基因分析突出显示了对寄生虫生长,生存和毒性至关重要的蛋白质.
- 这些发现为未来的研究提供了基础,包括淘汰赛实验,以进一步阐明Acanthamoeba病毒性机制.
相关概念视频
01:33Proteomics
7.4K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.4K
02:24Ribosome Profiling
3.5K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
3.5K