[논문]Sequencing and Comparative Analysis of napA Genes from Helicobacter pylori Strains Associated with Iron-Deficiency Anemia

Hong, Myung-Hee; Choe, Yon-Ho; Cho, Yang-Je; Ahn, Bo-Young; Lee, Na-Gyong

Sequencing and Comparative Analysis of napA Genes from Helicobacter pylori Strains Associated with Iron-Deficiency Anemia 원문보기

Journal of microbiology and biotechnology, v.15 no.4, 2005년, pp.866 - 872

Hong, Myung-Hee (Department of Bioscience & Biotechnology, Sejong University) , Choe, Yon-Ho (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University) , Cho, Yang-Je (EyeGene Inc.) , Ahn, Bo-Young (EyeGene Inc.) , Lee, Na-Gyong (Department of Bioscience & Biotechnology, Sejong University)

Abstract ▼ AI-Helper

H. pylori is known to cause severe gastric diseases, including peptic ulcers and gastric cancers, and a link has also been suggested with iron-deficiency anemia (IDA). However, little is known about the pathogenesis of H. pylori-associated IDA. In the present study, to determine whether H. pylori strains are correlated with the prevalence of IDA, we analyzed and compared the sequences of the napA genes encoding a bacterioferritin-like protein in H. pylori strains. A total of 20 H. pylori strains were isolated from antral biopsies of patients with and without IDA, and the napA genes amplified from the genomic DNA were sequenced. A comparison of the deduced amino acid sequences for NapA revealed two sites with major variations. At residue 70, five out of the 12 non-IDA strains ($41.7\%$) contained serine, while only one of the 8 IDA strains ($12.5\%$) contained serine, indicating a significantly higher frequency of serine in the non-IDA strains. In addition, the NapA proteins from all 17 Western strains available on Web sites were found to contain serine residues at this position. Meanwhile, the other major variation was located at residue 73, where all eight IDA strains ($100\%$) contained leucine, while this was only true for eight of the 12 non-IDA strains ($66.7\%$). Therefore, these results indicated that the strains within each group were more genetically related to each other than to strains in the other group. When the expression level of the napA genes in the H. pylori strains was measured using RT-PCR, no significant difference was observed between the two groups, suggesting a similar intensity for the inflammatory responses induced by the NapA protein among the strains. Consequently, when taken together, the present data suggest that the occurrence of H. pylori-associated IDA may be partly determined by the infecting H. pylori strain, and the non-IDA strains are more closely related to Western strains than the IDA strains.

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참고문헌 (22)

Annibale, B., M. Marignani, B. Monarca, G. Antonelli, A. Marcheggiano, G. Martino, F. Mandelli, R. Caprilli, and G. Delle Fave. 1999. Reversal of iron deficiency anemia after Helicobacter pylori eradication in patients with asymptomatic gastritis. Ann. Intern. Med. 131: 668-672
Atherton, J. C., P. Cao, R. M. Peek, M. K. Tummuru, M. J. Blaser, and T. L. Cover. 1995. Mosaicism in vacuolating cytotoxin alleles of Helicobacter pylori: Association of specific vacA types with cytotoxin production and peptic ulceration. J. Biol. Chem. 270: 17771-17777

상세보기
Barabino, A. 2002. Helicobacter pylori-related iron deficiency anemia: A review. Helicobacter 7: 71-75

상세보기
Choe, Y. H., P. S. Kim, D. H. Lee, H. K. Kim, Y. S. Kim, Y. W. Shin, T. S. Hwang, H. J. Kim, S. U. Song, and M. S. Choi. 2002. Diverse vacA allelic types of Helicobacter pylori in Korea and clinical correlation. Yonsei Med. J. 43: 351-356

상세보기
Choe, Y. H., S. K. Kim, B. K. Son, D. H. Lee, Y. C. Hong, and S. H. Pai. 1999. Randomized placebo-controlled trial of Helicobacter pylori eradication for iron-deficiency anemia in preadolescent children and adolescents. Helicobacter 4: 135-139

상세보기
Choe, Y. H., J. E. Lee, and S. K. Kim. 2000. Effect of Helicobacter pylori eradication on sideropenic refractory anaemia in adolescent girls with Helicobacter pylori infection. Acta Paediatr. 89: 154-157

상세보기
Choe, Y. H., Y. J. Oh, N. G. Lee, I. Imoto, Y. Adachi, N. Toyoda, and E. C. Gabazza. 2003. Lactoferrin sequestration and its contribution to iron-deficiency anemia in Helicobacter pylori-infected gastric mucosa. J. Gastroenterol. Hepatol. 18: 980-985

상세보기
Cooksley, C., P. J. Jenks, A. Green, A. Cockayne, R. P. Logan, and K. R. Hardie. 2003. NapA protects Helicobacter pylori from oxidative stress damage, and its production is influenced by the ferric uptake regulator. Med. Microbiol. 52: 461-469

상세보기
Corpet, F. 1988. Multiple sequence alignment with hierarchical clustering. Nucl. Acids Res. 16: 10881-10890

상세보기
Dunn, B. E., H. Cohen, and M. J. Blaser. 1997. Helicobacter pylori. Clin. Microbiol. Rev. 10: 720- 741

상세보기
Evans, D. J. Jr., D. G. Evans, T. Takemura, H. Nakano, H. C. Lampert, D. Y. Graham, D. N. Granger, and P. R. Kvietys. 1995. Characterization of a Helicobacter pylori neutrophilactivating protein. Infect. Immun. 63: 2213-2220
Husson, M. O., D. Legrand, G. Spik, and H. Leclerc. 1993. Iron acquisition by Helicobacter pylori: Importance of human lactoferrin. Infect. Immun. 61: 2694-2697

상세보기
Kawata, H., A. Ito, K. Kodama, S. Honda, T. Fujioka, and M. Nasu. 1996. Association between napA genotypes of Helicobacter pylori and severity of gastritis. Gastroenterol. 110 (suppl. 1): A152
Leakey, A., J. La Brooy, and R. Hirst. 2000. The ability of Helicobacter pylori to activate neutrophils is determined by factors other than H pylori neutrophils-activating protein. J. Infect. Dis. 182: 1749-1755

상세보기
Looker, A. C., P. R. Dallman, M. D. Carroll, E. W. Gunter, and C. L. Johnson. 1997. Prevalence of iron deficiency in the United States. JAMA 277: 973-976

상세보기
Miehlke, S., C. Kirsch, K. Agha-Amiri, J. Gunther, N. Lehn, P. Malfertheiner, M. Stolte, G Ehninger, and E. Bayerdorffer. 2000. The Helicobacter pylori vacA s1, m1 genotype and cagA is associated with gastric carcinoma in Germany. Int. J. Cancer 87: 322-327

상세보기
Milman, N., S. Rosenstock, L. Andersen, J. Jorgensen, and O. Bonnevie. 1998. Serum ferritin, hemoglobin, and Helicobacter pylori infection: A seroepidemiologic survey comprising 2794 Danish adults. Gastroenterology 115: 268-274

상세보기
Montemurro, P., H. Nishioka, W. G Dundon, M. de Bernard, G Del Giudice, R. Rappuo]j, and C. Montecucco. 2002. The neutrophil-activating protein (RP-NAP) of Helicobacter pylori is a potent stimulant of mast cells. Eur. J. Immunol. 32: 671-676

상세보기
Peek, R. M., S. A. Thompson, J. P. Donahue, K. T. Tham, J. C. Atherton, M. J. Blaser, and G G Miller. 1998. Adherence to gastric epithelial cells induces expression of a Helicobacter pylori gene, iceA, that is associated with clinical outcome. Proc. Assoc. Am. Physicians 110: 531-544
Satin, B., G. Del Giudice, V. Della Bianca, S. Dusi, C. Laudanna, F. Tonello, D. Kelleher, R. Rappuoli, C. Montecucco, and F. Rossi. 2000. The neutrophil-activating protein (HP-NAP) of Helicobacter pylori is a protective antigen and a major virulence factor. J. Exp. Med. 91: 1467-1476
Tonello, F., W. G. Dundon, B. Satin, M. Molinari, G. Tognon, G. Grandi, G. Del Giudice, R. Rappuoli, and C. Montecucco. 1999. The Helicobacter pylori neutrophil-activating protein is an iron-binding protein with dodecameric structure. Mol. Microbiol. 34: 238-246

상세보기
Zanotti, G., E. Papinutto, W. Dundon, R. Battistutta, M. Seveso, G. Giudice, R. Rappuoli, and C. Montecucco. 2002. Structure of the neutrophil-activating protein from Helicobacter pylori.J. Mol. Biol. 323: 125-130

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