Abstract
Helicobacter mustelae infects the ferret stomach and provides an opportunity to study pathogenic determinants of a Helicobacter species in its natural host. We constructed an isogenic urease-negative mutant of H. mustelae which produced no detectable urease and showed a reduced acid tolerance. This mutant provides an opportunity to further evaluate the role of urease in the pathogenesis of Helicobacter infection.
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- Clyne M., Labigne A., Drumm B. Helicobacter pylori requires an acidic environment to survive in the presence of urea. Infect Immun. 1995 May;63(5):1669–1673. doi: 10.1128/iai.63.5.1669-1673.1995. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Creno R. J., Wenk R. E., Bohlig P. Automated micromeasurement of urea using urease and the Berthelot reaction. Am J Clin Pathol. 1970 Dec;54(6):828–832. doi: 10.1093/ajcp/54.6.828. [DOI] [PubMed] [Google Scholar]
- Dixon M. F. Helicobacter pylori and peptic ulceration: histopathological aspects. J Gastroenterol Hepatol. 1991 Mar-Apr;6(2):125–130. doi: 10.1111/j.1440-1746.1991.tb01451.x. [DOI] [PubMed] [Google Scholar]
- Dunn B. E., Sung C. C., Taylor N. S., Fox J. G. Purification and characterization of Helicobacter mustelae urease. Infect Immun. 1991 Sep;59(9):3343–3345. doi: 10.1128/iai.59.9.3343-3345.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Eaton K. A., Krakowka S. Effect of gastric pH on urease-dependent colonization of gnotobiotic piglets by Helicobacter pylori. Infect Immun. 1994 Sep;62(9):3604–3607. doi: 10.1128/iai.62.9.3604-3607.1994. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ferrero R. L., Cussac V., Courcoux P., Labigne A. Construction of isogenic urease-negative mutants of Helicobacter pylori by allelic exchange. J Bacteriol. 1992 Jul;174(13):4212–4217. doi: 10.1128/jb.174.13.4212-4217.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Ferrero R. L., Labigne A. Cloning, expression and sequencing of Helicobacter felis urease genes. Mol Microbiol. 1993 Jul;9(2):323–333. doi: 10.1111/j.1365-2958.1993.tb01693.x. [DOI] [PubMed] [Google Scholar]
- Fox J. G., Correa P., Taylor N. S., Lee A., Otto G., Murphy J. C., Rose R. Helicobacter mustelae-associated gastritis in ferrets. An animal model of Helicobacter pylori gastritis in humans. Gastroenterology. 1990 Aug;99(2):352–361. doi: 10.1016/0016-5085(90)91016-y. [DOI] [PubMed] [Google Scholar]
- Fox J. G., Otto G., Taylor N. S., Rosenblad W., Murphy J. C. Helicobacter mustelae-induced gastritis and elevated gastric pH in the ferret (Mustela putorius furo). Infect Immun. 1991 Jun;59(6):1875–1880. doi: 10.1128/iai.59.6.1875-1880.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Heffron F., McCarthy B. J., Ohtsubo H., Ohtsubo E. DNA sequence analysis of the transposon Tn3: three genes and three sites involved in transposition of Tn3. Cell. 1979 Dec;18(4):1153–1163. doi: 10.1016/0092-8674(79)90228-9. [DOI] [PubMed] [Google Scholar]
- Hu L. T., Mobley H. L. Purification and N-terminal analysis of urease from Helicobacter pylori. Infect Immun. 1990 Apr;58(4):992–998. doi: 10.1128/iai.58.4.992-998.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Labigne A., Courcoux P., Tompkins L. Cloning of Campylobacter jejuni genes required for leucine biosynthesis, and construction of leu-negative mutant of C. jejuni by shuttle transposon mutagenesis. Res Microbiol. 1992 Jan;143(1):15–26. doi: 10.1016/0923-2508(92)90030-r. [DOI] [PubMed] [Google Scholar]
- Labigne A., Cussac V., Courcoux P. Shuttle cloning and nucleotide sequences of Helicobacter pylori genes responsible for urease activity. J Bacteriol. 1991 Mar;173(6):1920–1931. doi: 10.1128/jb.173.6.1920-1931.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Marshall B. J., Armstrong J. A., McGechie D. B., Glancy R. J. Attempt to fulfil Koch's postulates for pyloric Campylobacter. Med J Aust. 1985 Apr 15;142(8):436–439. doi: 10.5694/j.1326-5377.1985.tb113443.x. [DOI] [PubMed] [Google Scholar]
- Morris A. J., Ali M. R., Nicholson G. I., Perez-Perez G. I., Blaser M. J. Long-term follow-up of voluntary ingestion of Helicobacter pylori. Ann Intern Med. 1991 Apr 15;114(8):662–663. doi: 10.7326/0003-4819-114-8-662. [DOI] [PubMed] [Google Scholar]
- Morris A., Nicholson G. Ingestion of Campylobacter pyloridis causes gastritis and raised fasting gastric pH. Am J Gastroenterol. 1987 Mar;82(3):192–199. [PubMed] [Google Scholar]
- Nomura A., Stemmermann G. N., Chyou P. H., Kato I., Perez-Perez G. I., Blaser M. J. Helicobacter pylori infection and gastric carcinoma among Japanese Americans in Hawaii. N Engl J Med. 1991 Oct 17;325(16):1132–1136. doi: 10.1056/NEJM199110173251604. [DOI] [PubMed] [Google Scholar]
- Parsonnet J., Friedman G. D., Vandersteen D. P., Chang Y., Vogelman J. H., Orentreich N., Sibley R. K. Helicobacter pylori infection and the risk of gastric carcinoma. N Engl J Med. 1991 Oct 17;325(16):1127–1131. doi: 10.1056/NEJM199110173251603. [DOI] [PubMed] [Google Scholar]
- Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Segal E. D., Shon J., Tompkins L. S. Characterization of Helicobacter pylori urease mutants. Infect Immun. 1992 May;60(5):1883–1889. doi: 10.1128/iai.60.5.1883-1889.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Sly L. I., Bronsdon M. A., Bowman J. P., Holmes A., Stackebrandt E. The phylogenetic position of Helicobacter nemestrinae. Int J Syst Bacteriol. 1993 Apr;43(2):386–387. doi: 10.1099/00207713-43-2-386. [DOI] [PubMed] [Google Scholar]
- Solnick J. V., O'Rourke J., Lee A., Paster B. J., Dewhirst F. E., Tompkins L. S. An uncultured gastric spiral organism is a newly identified Helicobacter in humans. J Infect Dis. 1993 Aug;168(2):379–385. doi: 10.1093/infdis/168.2.379. [DOI] [PubMed] [Google Scholar]
- Solnick J. V., O'Rourke J., Lee A., Tompkins L. S. Molecular analysis of urease genes from a newly identified uncultured species of Helicobacter. Infect Immun. 1994 May;62(5):1631–1638. doi: 10.1128/iai.62.5.1631-1638.1994. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Suerbaum S., Josenhans C., Labigne A. Cloning and genetic characterization of the Helicobacter pylori and Helicobacter mustelae flaB flagellin genes and construction of H. pylori flaA- and flaB-negative mutants by electroporation-mediated allelic exchange. J Bacteriol. 1993 Jun;175(11):3278–3288. doi: 10.1128/jb.175.11.3278-3288.1993. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tsuda M., Karita M., Morshed M. G., Okita K., Nakazawa T. A urease-negative mutant of Helicobacter pylori constructed by allelic exchange mutagenesis lacks the ability to colonize the nude mouse stomach. Infect Immun. 1994 Aug;62(8):3586–3589. doi: 10.1128/iai.62.8.3586-3589.1994. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Turbett G. R., Høj P. B., Horne R., Mee B. J. Purification and characterization of the urease enzymes of Helicobacter species from humans and animals. Infect Immun. 1992 Dec;60(12):5259–5266. doi: 10.1128/iai.60.12.5259-5266.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Winship P. R. An improved method for directly sequencing PCR amplified material using dimethyl sulphoxide. Nucleic Acids Res. 1989 Feb 11;17(3):1266–1266. doi: 10.1093/nar/17.3.1266. [DOI] [PMC free article] [PubMed] [Google Scholar]