Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells

Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order...
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Autor*in:	Xudong Su [verfasserIn] Guojie Cao [verfasserIn] Jianmin Zhang [verfasserIn] Haijian Pan [verfasserIn] Daofeng Zhang [verfasserIn] Dai Kuang [verfasserIn] Xiaowei Yang [verfasserIn] Xuebin Xu [verfasserIn] Xianming Shi [verfasserIn] Jianghong Meng [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	L. monocytogenes Internalins inlA PMSC mutation Invasion

Übergeordnetes Werk:	In: Gut Pathogens - BMC, 2012, 11(2019), 1, Seite 10
Übergeordnetes Werk:	volume:11 ; year:2019 ; number:1 ; pages:10

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1186/s13099-019-0307-8

Katalog-ID:	DOAJ035576758

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520			\|a Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order to invade epithelial cells. Results In this study, the gene sequences of inlA in 120 L. monocytogenes isolates from food (n = 107) and humans (n = 13) were analyzed. Premature stop codon (PMSC) mutations in inlA were identified in 51 isolates (50 from food and 1 from human). Six mutation types of PMSCs were identified. Among the 51 isolates with PMSCs in inlA, there were 44 serogroup 1/2c, 3c isolates from food, of which seven belonged to serogroups 1/2a, 3a. A total of 153,382 SNPs in 2247 core genes from 42 genomes were identified and used to construct a phylogenetic tree. Serotype 1/2c isolates with inlA PMSC mutations were grouped together. Cell culture studies on 21 isolates showed that the invasion to Caco-2 cells was significantly reduced among isolates with inlA PMSC mutations compared to those without PMSC mutations (P < 0.01). The PMSC mutations in inlA correlated with the inability of the L. monocytogenes isolates to invade Caco-2 cells (Pearson’s coefficient 0.927, P < 0.01). Conclusion Overall, the study has revealed the reduced ability of L. monocytogenes to invade human intestinal epithelial cells in vitro was linked to the presence of PMSC mutations in inlA. Isolates with PMSC mutations shared the same genomic characteristics indicating the genetic basis on the potential virulence of L. monocytogenes invasion.
650		4	\|a L. monocytogenes
650		4	\|a Internalins
650		4	\|a inlA
650		4	\|a PMSC mutation
650		4	\|a Invasion
653		0	\|a Diseases of the digestive system. Gastroenterology
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700	0		\|a Xiaowei Yang \|e verfasserin \|4 aut
700	0		\|a Xuebin Xu \|e verfasserin \|4 aut
700	0		\|a Xianming Shi \|e verfasserin \|4 aut
700	0		\|a Jianghong Meng \|e verfasserin \|4 aut
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allfields	10.1186/s13099-019-0307-8 doi (DE-627)DOAJ035576758 (DE-599)DOAJ6cf550b91b8a4220ace726c11434af8f DE-627 ger DE-627 rakwb eng RC799-869 Xudong Su verfasserin aut Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order to invade epithelial cells. Results In this study, the gene sequences of inlA in 120 L. monocytogenes isolates from food (n = 107) and humans (n = 13) were analyzed. Premature stop codon (PMSC) mutations in inlA were identified in 51 isolates (50 from food and 1 from human). Six mutation types of PMSCs were identified. Among the 51 isolates with PMSCs in inlA, there were 44 serogroup 1/2c, 3c isolates from food, of which seven belonged to serogroups 1/2a, 3a. A total of 153,382 SNPs in 2247 core genes from 42 genomes were identified and used to construct a phylogenetic tree. Serotype 1/2c isolates with inlA PMSC mutations were grouped together. Cell culture studies on 21 isolates showed that the invasion to Caco-2 cells was significantly reduced among isolates with inlA PMSC mutations compared to those without PMSC mutations (P < 0.01). The PMSC mutations in inlA correlated with the inability of the L. monocytogenes isolates to invade Caco-2 cells (Pearson’s coefficient 0.927, P < 0.01). Conclusion Overall, the study has revealed the reduced ability of L. monocytogenes to invade human intestinal epithelial cells in vitro was linked to the presence of PMSC mutations in inlA. Isolates with PMSC mutations shared the same genomic characteristics indicating the genetic basis on the potential virulence of L. monocytogenes invasion. L. monocytogenes Internalins inlA PMSC mutation Invasion Diseases of the digestive system. Gastroenterology Guojie Cao verfasserin aut Jianmin Zhang verfasserin aut Haijian Pan verfasserin aut Daofeng Zhang verfasserin aut Dai Kuang verfasserin aut Xiaowei Yang verfasserin aut Xuebin Xu verfasserin aut Xianming Shi verfasserin aut Jianghong Meng verfasserin aut In Gut Pathogens BMC, 2012 11(2019), 1, Seite 10 (DE-627)591514133 (DE-600)2478277-4 17574749 nnns volume:11 year:2019 number:1 pages:10 https://doi.org/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/article/6cf550b91b8a4220ace726c11434af8f kostenfrei http://link.springer.com/article/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/toc/1757-4749 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 10
spelling	10.1186/s13099-019-0307-8 doi (DE-627)DOAJ035576758 (DE-599)DOAJ6cf550b91b8a4220ace726c11434af8f DE-627 ger DE-627 rakwb eng RC799-869 Xudong Su verfasserin aut Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order to invade epithelial cells. Results In this study, the gene sequences of inlA in 120 L. monocytogenes isolates from food (n = 107) and humans (n = 13) were analyzed. Premature stop codon (PMSC) mutations in inlA were identified in 51 isolates (50 from food and 1 from human). Six mutation types of PMSCs were identified. Among the 51 isolates with PMSCs in inlA, there were 44 serogroup 1/2c, 3c isolates from food, of which seven belonged to serogroups 1/2a, 3a. A total of 153,382 SNPs in 2247 core genes from 42 genomes were identified and used to construct a phylogenetic tree. Serotype 1/2c isolates with inlA PMSC mutations were grouped together. Cell culture studies on 21 isolates showed that the invasion to Caco-2 cells was significantly reduced among isolates with inlA PMSC mutations compared to those without PMSC mutations (P < 0.01). The PMSC mutations in inlA correlated with the inability of the L. monocytogenes isolates to invade Caco-2 cells (Pearson’s coefficient 0.927, P < 0.01). Conclusion Overall, the study has revealed the reduced ability of L. monocytogenes to invade human intestinal epithelial cells in vitro was linked to the presence of PMSC mutations in inlA. Isolates with PMSC mutations shared the same genomic characteristics indicating the genetic basis on the potential virulence of L. monocytogenes invasion. L. monocytogenes Internalins inlA PMSC mutation Invasion Diseases of the digestive system. Gastroenterology Guojie Cao verfasserin aut Jianmin Zhang verfasserin aut Haijian Pan verfasserin aut Daofeng Zhang verfasserin aut Dai Kuang verfasserin aut Xiaowei Yang verfasserin aut Xuebin Xu verfasserin aut Xianming Shi verfasserin aut Jianghong Meng verfasserin aut In Gut Pathogens BMC, 2012 11(2019), 1, Seite 10 (DE-627)591514133 (DE-600)2478277-4 17574749 nnns volume:11 year:2019 number:1 pages:10 https://doi.org/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/article/6cf550b91b8a4220ace726c11434af8f kostenfrei http://link.springer.com/article/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/toc/1757-4749 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 10
allfields_unstemmed	10.1186/s13099-019-0307-8 doi (DE-627)DOAJ035576758 (DE-599)DOAJ6cf550b91b8a4220ace726c11434af8f DE-627 ger DE-627 rakwb eng RC799-869 Xudong Su verfasserin aut Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order to invade epithelial cells. Results In this study, the gene sequences of inlA in 120 L. monocytogenes isolates from food (n = 107) and humans (n = 13) were analyzed. Premature stop codon (PMSC) mutations in inlA were identified in 51 isolates (50 from food and 1 from human). Six mutation types of PMSCs were identified. Among the 51 isolates with PMSCs in inlA, there were 44 serogroup 1/2c, 3c isolates from food, of which seven belonged to serogroups 1/2a, 3a. A total of 153,382 SNPs in 2247 core genes from 42 genomes were identified and used to construct a phylogenetic tree. Serotype 1/2c isolates with inlA PMSC mutations were grouped together. Cell culture studies on 21 isolates showed that the invasion to Caco-2 cells was significantly reduced among isolates with inlA PMSC mutations compared to those without PMSC mutations (P < 0.01). The PMSC mutations in inlA correlated with the inability of the L. monocytogenes isolates to invade Caco-2 cells (Pearson’s coefficient 0.927, P < 0.01). Conclusion Overall, the study has revealed the reduced ability of L. monocytogenes to invade human intestinal epithelial cells in vitro was linked to the presence of PMSC mutations in inlA. Isolates with PMSC mutations shared the same genomic characteristics indicating the genetic basis on the potential virulence of L. monocytogenes invasion. L. monocytogenes Internalins inlA PMSC mutation Invasion Diseases of the digestive system. Gastroenterology Guojie Cao verfasserin aut Jianmin Zhang verfasserin aut Haijian Pan verfasserin aut Daofeng Zhang verfasserin aut Dai Kuang verfasserin aut Xiaowei Yang verfasserin aut Xuebin Xu verfasserin aut Xianming Shi verfasserin aut Jianghong Meng verfasserin aut In Gut Pathogens BMC, 2012 11(2019), 1, Seite 10 (DE-627)591514133 (DE-600)2478277-4 17574749 nnns volume:11 year:2019 number:1 pages:10 https://doi.org/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/article/6cf550b91b8a4220ace726c11434af8f kostenfrei http://link.springer.com/article/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/toc/1757-4749 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 10
allfieldsGer	10.1186/s13099-019-0307-8 doi (DE-627)DOAJ035576758 (DE-599)DOAJ6cf550b91b8a4220ace726c11434af8f DE-627 ger DE-627 rakwb eng RC799-869 Xudong Su verfasserin aut Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order to invade epithelial cells. Results In this study, the gene sequences of inlA in 120 L. monocytogenes isolates from food (n = 107) and humans (n = 13) were analyzed. Premature stop codon (PMSC) mutations in inlA were identified in 51 isolates (50 from food and 1 from human). Six mutation types of PMSCs were identified. Among the 51 isolates with PMSCs in inlA, there were 44 serogroup 1/2c, 3c isolates from food, of which seven belonged to serogroups 1/2a, 3a. A total of 153,382 SNPs in 2247 core genes from 42 genomes were identified and used to construct a phylogenetic tree. Serotype 1/2c isolates with inlA PMSC mutations were grouped together. Cell culture studies on 21 isolates showed that the invasion to Caco-2 cells was significantly reduced among isolates with inlA PMSC mutations compared to those without PMSC mutations (P < 0.01). The PMSC mutations in inlA correlated with the inability of the L. monocytogenes isolates to invade Caco-2 cells (Pearson’s coefficient 0.927, P < 0.01). Conclusion Overall, the study has revealed the reduced ability of L. monocytogenes to invade human intestinal epithelial cells in vitro was linked to the presence of PMSC mutations in inlA. Isolates with PMSC mutations shared the same genomic characteristics indicating the genetic basis on the potential virulence of L. monocytogenes invasion. L. monocytogenes Internalins inlA PMSC mutation Invasion Diseases of the digestive system. Gastroenterology Guojie Cao verfasserin aut Jianmin Zhang verfasserin aut Haijian Pan verfasserin aut Daofeng Zhang verfasserin aut Dai Kuang verfasserin aut Xiaowei Yang verfasserin aut Xuebin Xu verfasserin aut Xianming Shi verfasserin aut Jianghong Meng verfasserin aut In Gut Pathogens BMC, 2012 11(2019), 1, Seite 10 (DE-627)591514133 (DE-600)2478277-4 17574749 nnns volume:11 year:2019 number:1 pages:10 https://doi.org/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/article/6cf550b91b8a4220ace726c11434af8f kostenfrei http://link.springer.com/article/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/toc/1757-4749 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 10
allfieldsSound	10.1186/s13099-019-0307-8 doi (DE-627)DOAJ035576758 (DE-599)DOAJ6cf550b91b8a4220ace726c11434af8f DE-627 ger DE-627 rakwb eng RC799-869 Xudong Su verfasserin aut Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order to invade epithelial cells. Results In this study, the gene sequences of inlA in 120 L. monocytogenes isolates from food (n = 107) and humans (n = 13) were analyzed. Premature stop codon (PMSC) mutations in inlA were identified in 51 isolates (50 from food and 1 from human). Six mutation types of PMSCs were identified. Among the 51 isolates with PMSCs in inlA, there were 44 serogroup 1/2c, 3c isolates from food, of which seven belonged to serogroups 1/2a, 3a. A total of 153,382 SNPs in 2247 core genes from 42 genomes were identified and used to construct a phylogenetic tree. Serotype 1/2c isolates with inlA PMSC mutations were grouped together. Cell culture studies on 21 isolates showed that the invasion to Caco-2 cells was significantly reduced among isolates with inlA PMSC mutations compared to those without PMSC mutations (P < 0.01). The PMSC mutations in inlA correlated with the inability of the L. monocytogenes isolates to invade Caco-2 cells (Pearson’s coefficient 0.927, P < 0.01). Conclusion Overall, the study has revealed the reduced ability of L. monocytogenes to invade human intestinal epithelial cells in vitro was linked to the presence of PMSC mutations in inlA. Isolates with PMSC mutations shared the same genomic characteristics indicating the genetic basis on the potential virulence of L. monocytogenes invasion. L. monocytogenes Internalins inlA PMSC mutation Invasion Diseases of the digestive system. Gastroenterology Guojie Cao verfasserin aut Jianmin Zhang verfasserin aut Haijian Pan verfasserin aut Daofeng Zhang verfasserin aut Dai Kuang verfasserin aut Xiaowei Yang verfasserin aut Xuebin Xu verfasserin aut Xianming Shi verfasserin aut Jianghong Meng verfasserin aut In Gut Pathogens BMC, 2012 11(2019), 1, Seite 10 (DE-627)591514133 (DE-600)2478277-4 17574749 nnns volume:11 year:2019 number:1 pages:10 https://doi.org/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/article/6cf550b91b8a4220ace726c11434af8f kostenfrei http://link.springer.com/article/10.1186/s13099-019-0307-8 kostenfrei https://doaj.org/toc/1757-4749 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 11 2019 1 10
language	English
source	In Gut Pathogens 11(2019), 1, Seite 10 volume:11 year:2019 number:1 pages:10
sourceStr	In Gut Pathogens 11(2019), 1, Seite 10 volume:11 year:2019 number:1 pages:10
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	L. monocytogenes Internalins inlA PMSC mutation Invasion Diseases of the digestive system. Gastroenterology
isfreeaccess_bool	true
container_title	Gut Pathogens
authorswithroles_txt_mv	Xudong Su @@aut@@ Guojie Cao @@aut@@ Jianmin Zhang @@aut@@ Haijian Pan @@aut@@ Daofeng Zhang @@aut@@ Dai Kuang @@aut@@ Xiaowei Yang @@aut@@ Xuebin Xu @@aut@@ Xianming Shi @@aut@@ Jianghong Meng @@aut@@
publishDateDaySort_date	2019-01-01T00:00:00Z
hierarchy_top_id	591514133
id	DOAJ035576758
language_de	englisch
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callnumber-first	R - Medicine
author	Xudong Su
spellingShingle	Xudong Su misc RC799-869 misc L. monocytogenes misc Internalins misc inlA misc PMSC mutation misc Invasion misc Diseases of the digestive system. Gastroenterology Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells
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topic_title	RC799-869 Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells L. monocytogenes Internalins inlA PMSC mutation Invasion
topic	misc RC799-869 misc L. monocytogenes misc Internalins misc inlA misc PMSC mutation misc Invasion misc Diseases of the digestive system. Gastroenterology
topic_unstemmed	misc RC799-869 misc L. monocytogenes misc Internalins misc inlA misc PMSC mutation misc Invasion misc Diseases of the digestive system. Gastroenterology
topic_browse	misc RC799-869 misc L. monocytogenes misc Internalins misc inlA misc PMSC mutation misc Invasion misc Diseases of the digestive system. Gastroenterology
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title	Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells
ctrlnum	(DE-627)DOAJ035576758 (DE-599)DOAJ6cf550b91b8a4220ace726c11434af8f
title_full	Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells
author_sort	Xudong Su
journal	Gut Pathogens
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author_browse	Xudong Su Guojie Cao Jianmin Zhang Haijian Pan Daofeng Zhang Dai Kuang Xiaowei Yang Xuebin Xu Xianming Shi Jianghong Meng
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title_sort	characterization of internalin genes in listeria monocytogenes from food and humans, and their association with the invasion of caco-2 cells
callnumber	RC799-869
title_auth	Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells
abstract	Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order to invade epithelial cells. Results In this study, the gene sequences of inlA in 120 L. monocytogenes isolates from food (n = 107) and humans (n = 13) were analyzed. Premature stop codon (PMSC) mutations in inlA were identified in 51 isolates (50 from food and 1 from human). Six mutation types of PMSCs were identified. Among the 51 isolates with PMSCs in inlA, there were 44 serogroup 1/2c, 3c isolates from food, of which seven belonged to serogroups 1/2a, 3a. A total of 153,382 SNPs in 2247 core genes from 42 genomes were identified and used to construct a phylogenetic tree. Serotype 1/2c isolates with inlA PMSC mutations were grouped together. Cell culture studies on 21 isolates showed that the invasion to Caco-2 cells was significantly reduced among isolates with inlA PMSC mutations compared to those without PMSC mutations (P < 0.01). The PMSC mutations in inlA correlated with the inability of the L. monocytogenes isolates to invade Caco-2 cells (Pearson’s coefficient 0.927, P < 0.01). Conclusion Overall, the study has revealed the reduced ability of L. monocytogenes to invade human intestinal epithelial cells in vitro was linked to the presence of PMSC mutations in inlA. Isolates with PMSC mutations shared the same genomic characteristics indicating the genetic basis on the potential virulence of L. monocytogenes invasion.
abstractGer	Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order to invade epithelial cells. Results In this study, the gene sequences of inlA in 120 L. monocytogenes isolates from food (n = 107) and humans (n = 13) were analyzed. Premature stop codon (PMSC) mutations in inlA were identified in 51 isolates (50 from food and 1 from human). Six mutation types of PMSCs were identified. Among the 51 isolates with PMSCs in inlA, there were 44 serogroup 1/2c, 3c isolates from food, of which seven belonged to serogroups 1/2a, 3a. A total of 153,382 SNPs in 2247 core genes from 42 genomes were identified and used to construct a phylogenetic tree. Serotype 1/2c isolates with inlA PMSC mutations were grouped together. Cell culture studies on 21 isolates showed that the invasion to Caco-2 cells was significantly reduced among isolates with inlA PMSC mutations compared to those without PMSC mutations (P < 0.01). The PMSC mutations in inlA correlated with the inability of the L. monocytogenes isolates to invade Caco-2 cells (Pearson’s coefficient 0.927, P < 0.01). Conclusion Overall, the study has revealed the reduced ability of L. monocytogenes to invade human intestinal epithelial cells in vitro was linked to the presence of PMSC mutations in inlA. Isolates with PMSC mutations shared the same genomic characteristics indicating the genetic basis on the potential virulence of L. monocytogenes invasion.
abstract_unstemmed	Abstract Background Internalins are surface proteins that are utilized by Listeria monocytogenes to facilitate its invasion into human intestinal epithelial cells. The expression of a full-length InlA is one of essential virulence factors for L. monocytogenes to cross the intestinal barrier in order to invade epithelial cells. Results In this study, the gene sequences of inlA in 120 L. monocytogenes isolates from food (n = 107) and humans (n = 13) were analyzed. Premature stop codon (PMSC) mutations in inlA were identified in 51 isolates (50 from food and 1 from human). Six mutation types of PMSCs were identified. Among the 51 isolates with PMSCs in inlA, there were 44 serogroup 1/2c, 3c isolates from food, of which seven belonged to serogroups 1/2a, 3a. A total of 153,382 SNPs in 2247 core genes from 42 genomes were identified and used to construct a phylogenetic tree. Serotype 1/2c isolates with inlA PMSC mutations were grouped together. Cell culture studies on 21 isolates showed that the invasion to Caco-2 cells was significantly reduced among isolates with inlA PMSC mutations compared to those without PMSC mutations (P < 0.01). The PMSC mutations in inlA correlated with the inability of the L. monocytogenes isolates to invade Caco-2 cells (Pearson’s coefficient 0.927, P < 0.01). Conclusion Overall, the study has revealed the reduced ability of L. monocytogenes to invade human intestinal epithelial cells in vitro was linked to the presence of PMSC mutations in inlA. Isolates with PMSC mutations shared the same genomic characteristics indicating the genetic basis on the potential virulence of L. monocytogenes invasion.
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title_short	Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells
url	https://doi.org/10.1186/s13099-019-0307-8 https://doaj.org/article/6cf550b91b8a4220ace726c11434af8f http://link.springer.com/article/10.1186/s13099-019-0307-8 https://doaj.org/toc/1757-4749
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Characterization of internalin genes in Listeria monocytogenes from food and humans, and their association with the invasion of Caco-2 cells

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Vorhandene Bände

Nicht das Richtige dabei?