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| Content Provider | Springer Nature Link |
|---|---|
| Author | Zhang, Ya nan Ding, Shi gang Huang, Liu huan Zhang, Jing Shi, Yan yan Zhong, Li jun |
| Copyright Year | 2011 |
| Abstract | To investigate the pathogenic properties of Helicobacter pylori by comparing the proteome map of H. pylori clinical strains.Two wild-type H. pylori strains, YN8 (isolated from biopsy tissue of a gastric cancer patient) and YN14 (isolated from biopsy tissue of a gastritis and duodenal ulcer patient), were used. Proteomic analysis, using a pH range of 3–10 and 5–8, was performed. The individual proteins were identified by quadrupole time-of-flight (Q-TOF) mass spectrometer and protein database search.Variation in spot patterns directed towards differential protein expression levels was observed between the strains. The gel revealed prominent proteins with several protein “families”. The comparison of protein expressions of the two strains reveals a high variability. Differentially present or absent spots were observed. Nine differentially expressed protein spots identified by Q-TOF included adenosine triphosphate (ATP)-binding protein, disulfide oxidoreductase B (DsbB)-like protein, N utilization substance A (NusA), ATP-dependent protease binding subunit/heat shock protein, hydantoin utilization protein A, seryl-tRNA synthetase, molybdenum ABC transporter ModD, and hypothetical proteins.This study suggests that H. pylori strains express/repress protein variation, not only in terms of the virulence proteins, but also in terms of physiological proteins, when they infect a human host. The difference of protein expression levels between H. pylori strains isolated from gastric cancer and gastritis may be the initiator of inflammation, and result in the different clinical presentation. In this preliminary study, we report seven differential proteins between strains, with molecule weights from approximately 10 kDa to approximately 40 kDa. Further studies are needed to investigate those proteins and their function associated with H. pylori colonization and adaptation to host environment stress. |
| Starting Page | 820 |
| Ending Page | 827 |
| Page Count | 8 |
| File Format | |
| ISSN | 16731581 |
| Journal | Journal of Zhejiang University SCIENCE B |
| Volume Number | 12 |
| Issue Number | 10 |
| e-ISSN | 18621783 |
| Language | English |
| Publisher | SP Zhejiang University Press |
| Publisher Date | 2011-10-08 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Helicobacter pylori Proteome Gastric cancer Gastritis Two-dimensional gel electrophoresis Biomedicine general |
| Content Type | Text |
| Resource Type | Article |
| Subject | Veterinary Medicine Biochemistry, Genetics and Molecular Biology Pharmacology, Toxicology and Pharmaceutics |
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