Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns
Research exploring the proteome of Toxoplasma gondii oocysts has gained momentum over the past few years. However, little is known about the oocyst’s protein repertoires that contribute to differential virulence among T. gondii strains. Here, we used isobaric tag for relative and absolute quantitati...
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| Format: | Article |
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Impact Journals
2017
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| Online Access: | https://eprints.nottingham.ac.uk/44113/ |
| _version_ | 1848796841223651328 |
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| author | Zhou, Dong-Hui Wang, Ze-Xiang Zhou, Chun-Xue He, Shuai Elsheikha, Hany M. Zhu, Xing-Quan |
| author_facet | Zhou, Dong-Hui Wang, Ze-Xiang Zhou, Chun-Xue He, Shuai Elsheikha, Hany M. Zhu, Xing-Quan |
| author_sort | Zhou, Dong-Hui |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Research exploring the proteome of Toxoplasma gondii oocysts has gained momentum over the past few years. However, little is known about the oocyst’s protein repertoires that contribute to differential virulence among T. gondii strains. Here, we used isobaric tag for relative and absolute quantitation-based proteomic analysis of oocysts of two T. gondii strains exhibiting the virulent PYS (ToxoDB#9) phenotype versus the less virulent PRU (Type II, ToxoDB #1) phenotype. Our aim was to determine protein expression patterns that contribute to the virulence of a particular phenotype. A total of 2,551 proteins were identified, of which 374 were differentially expressed proteins (DEPs) (|log2 fold change| ≥ 0.58 and P < 0.05). DEPs included 192 increased and 182 decreased proteins. Gene Ontology and KEGG pathway analyses revealed a large number of DEPs enriched in various metabolic processes. Protein interaction network analysis using STRING identified inosine monophosphate dehydrogenase (IMPDH), Bifunctional GMP synthase/glutamine amidotransferase protein, Glucose-6-phosphate 1-dehydrogenase, and Citrate synthase as the top four hubs. Of the 22 virulence proteins commonly expressed in the oocysts of the two strains, 13 and 2 proteins were increased in PYS strain and PRU strain, respectively. Also, 10 and 3 of the 22 identified oocyst wall proteins showed higher expression in oocysts of PRU strain and PYS strain, respectively. These findings revealed new proteomic differences in the oocysts of T. gondii strains of different genotypic backgrounds. |
| first_indexed | 2025-11-14T19:54:23Z |
| format | Article |
| id | nottingham-44113 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:54:23Z |
| publishDate | 2017 |
| publisher | Impact Journals |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-441132020-05-04T18:54:34Z https://eprints.nottingham.ac.uk/44113/ Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns Zhou, Dong-Hui Wang, Ze-Xiang Zhou, Chun-Xue He, Shuai Elsheikha, Hany M. Zhu, Xing-Quan Research exploring the proteome of Toxoplasma gondii oocysts has gained momentum over the past few years. However, little is known about the oocyst’s protein repertoires that contribute to differential virulence among T. gondii strains. Here, we used isobaric tag for relative and absolute quantitation-based proteomic analysis of oocysts of two T. gondii strains exhibiting the virulent PYS (ToxoDB#9) phenotype versus the less virulent PRU (Type II, ToxoDB #1) phenotype. Our aim was to determine protein expression patterns that contribute to the virulence of a particular phenotype. A total of 2,551 proteins were identified, of which 374 were differentially expressed proteins (DEPs) (|log2 fold change| ≥ 0.58 and P < 0.05). DEPs included 192 increased and 182 decreased proteins. Gene Ontology and KEGG pathway analyses revealed a large number of DEPs enriched in various metabolic processes. Protein interaction network analysis using STRING identified inosine monophosphate dehydrogenase (IMPDH), Bifunctional GMP synthase/glutamine amidotransferase protein, Glucose-6-phosphate 1-dehydrogenase, and Citrate synthase as the top four hubs. Of the 22 virulence proteins commonly expressed in the oocysts of the two strains, 13 and 2 proteins were increased in PYS strain and PRU strain, respectively. Also, 10 and 3 of the 22 identified oocyst wall proteins showed higher expression in oocysts of PRU strain and PYS strain, respectively. These findings revealed new proteomic differences in the oocysts of T. gondii strains of different genotypic backgrounds. Impact Journals 2017-07-07 Article PeerReviewed Zhou, Dong-Hui, Wang, Ze-Xiang, Zhou, Chun-Xue, He, Shuai, Elsheikha, Hany M. and Zhu, Xing-Quan (2017) Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns. Oncotarget, 8 (46). pp. 80481-80491. ISSN 1949-2553 http://www.impactjournals.com/oncotarget/index.php?journal=oncotarget&page=article&op=view&path[]=19077&path[]=61141 doi:10.18632/oncotarget.19077 doi:10.18632/oncotarget.19077 |
| spellingShingle | Zhou, Dong-Hui Wang, Ze-Xiang Zhou, Chun-Xue He, Shuai Elsheikha, Hany M. Zhu, Xing-Quan Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns |
| title | Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns |
| title_full | Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns |
| title_fullStr | Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns |
| title_full_unstemmed | Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns |
| title_short | Comparative proteomic analysis of virulent and avirulent strains of Toxoplasma gondii reveals strain-specific patterns |
| title_sort | comparative proteomic analysis of virulent and avirulent strains of toxoplasma gondii reveals strain-specific patterns |
| url | https://eprints.nottingham.ac.uk/44113/ https://eprints.nottingham.ac.uk/44113/ https://eprints.nottingham.ac.uk/44113/ |