Proteomic analysis of differentially expressed proteins in the two developmental stages of Ichthyophthirius multifiliis
| Autor: | Yin Wenlin, Pan Xiaoyi, Xu Yang, Gui-Lian Yang, Xuemei Yuan, Yao Jiayun, Lin Lingyun, Shen Jinyu, Chun-Feng Wang |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Proteomics Carps Ciliophora Infections 03 medical and health sciences Fish Diseases Downregulation and upregulation Tandem Mass Spectrometry Parasite hosting Animals Pathogen Hymenostomatida Zinc finger Life Cycle Stages 030102 biochemistry & molecular biology General Veterinary Ichthyophthirius multifiliis biology Transporter General Medicine Periplasmic space biology.organism_classification Molecular biology 030104 developmental biology Infectious Diseases Isocitrate dehydrogenase Biochemistry Gene Expression Regulation Insect Science Parasitology |
| Zdroj: | Parasitology research. 116(2) |
| ISSN: | 1432-1955 |
| Popis: | Ichthyophthirius is a severe disease of farmed freshwater fish caused by the parasitic ciliate Ichthyophthirius multifiliis (Ich). This disease can lead to considerable economic loss, but the protein profiles in different developmental stages of the parasite remain unknown. In the present study, proteins from trophonts and theronts of Ich were identified by isobaric tags for relative and absolute quantitation (iTRAQ). A total of 2300 proteins were identified in the two developmental stages, of which 1520 proteins were differentially expressed. Among them, 84 proteins were uniquely expressed in the theronts stage, while 656 proteins were expressed only in trophonts. The differentially expressed proteins were catalogued (assorted) to various functions of Ich life cycle, including biological process, cellular component, and molecular function that occur at distinct stages. Using a 1.5-fold change in expression as a physiologically significant benchmark, a lot of differentially expressed proteins were reliably quantified by iTRAQ analysis. Two hundred forty upregulated and 57 downregulated proteins in the trophonts stage were identified as compared with theronts. The identified proteins were involved in various functions of the I. multifiliis life cycle, including binding, catalytic activity, structural molecule activity, and transporter activity. Further investigation of the transcriptional levels of periplasmic immunogenic protein, transketolase, zinc finger, isocitrate dehydrogenase, etc., from the different protein profiles using quantitative RT-PCR showed identical results to the iTRAQ analysis. This work provides an effective resource to further our understanding of Ich biology, and lays the groundwork for the identification of potential drug targets and vaccines candidates for the control of this devastating fish pathogen. |
| Databáze: | OpenAIRE |
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