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논문 기본 정보
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- 저자정보
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- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제28권 제1호
- 발행연도
- 2018.1
- 수록면
- 59 - 64 (6page)
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Listeria monocytogenes can asymptomatically inhabit the human intestine as a commensal bacterium. However, the mechanism by which L. monocytogenes is able to inhabit the intestine without pathogenic symptoms remains unclear. We compared the invasion efficiency of L. monocytogenes strains with the 268- and 385-bp-long actA gene. Clinical strains SMFM-CI-3 and SMFM-CI-6 with 268-bp actA isolated from patients with listeriosis, and strains SMFM-SI-1 and SMFM-SI-2 with the 385-bp gene isolated from carcasses, were used for inoculum preparation. The invasion efficiency of these strains was evaluated using Caco-2 cells (intestinal epithelial cell line), prepared as normal and healthy cells with tightened tight junctions and senescent cells with loose tight junctions that were loosened by adriamycin treatment. The invasion efficiency of L. monocytogenes strains with the 268-bp-long actA gene was 1.1-2.6-times lower than that of the strains with the 385-bp-long gene in normal and healthy cells. However, the invasion efficiency of both types of strains did not differ in senescent cells. Thus, L. monocytogenes strains with the 268-bp-long actA gene can inhabit the intestine asymptomatically as a commensal bacterium, but they may invade the intestinal epithelial cells and cause listeriosis in senescent cells.
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참고문헌 (35)
참고문헌 신청
Hansen CH / 2006 / Prevalence and survival of Listeria monocytogenes in Danish aquatic and fishprocessing environments / J. Food Protect. 69:2113~2122
Muhterem-Uyar M / 2015 / Environmental sampling for Listeria monocytogenes control in food processing facilities reveals three contamination scenarios / Food Control 51:94~107
Coroneo V / 2016 / Detection of virulence genes and growth potential in Listeria monocytogenes strains isolated from ricotta salata cheese / J. Food Sci. 81:M114~M120
Kaufmann SH / 2016 / Molecular determinants in phagocyte-bacteria interactions / Immunity 44:476~491
Mengaud J / 1996 / E-cadherin is the receptor for internalin, a surface protein required for entry of L. monocytogenes into epithelial cells / Cell 84:923~932
Muhterem-Uyar M / 2015 / Environmental sampling for Listeria monocytogenes control in food processing facilities reveals three contamination scenarios / Food Control 51:94~107
Coroneo V / 2016 / Detection of virulence genes and growth potential in Listeria monocytogenes strains isolated from ricotta salata cheese / J. Food Sci. 81:M114~M120
Kaufmann SH / 2016 / Molecular determinants in phagocyte-bacteria interactions / Immunity 44:476~491
Mengaud J / 1996 / E-cadherin is the receptor for internalin, a surface protein required for entry of L. monocytogenes into epithelial cells / Cell 84:923~932
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