Colon cancer-associated B2 Escherichia coli colonize gut mucosa and promote cell proliferation

doi:10.3748/wjg.v20.i21.6560

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World Journal of Gastroenterology

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1007-9327

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Evidence-Based Medicine

World J Gastroenterol. Jun 7, 2014; 20(21): 6560-6572
Published online Jun 7, 2014. doi: 10.3748/wjg.v20.i21.6560

Table 6 Hemolysin expression and presence of cyclomodulin- and adhesin-encoding genes in B2 phylogroup Escherichia coli strains

E. coli strains	Haemolytic phenotype¹	Cyclomodulin-encoding genes				Adhesin-encoding genes
E. coli strains	Haemolytic phenotype¹	pks	cnf	cdtB	cif	afa	dra	aagR
Colon cancer
1C12	+	+	cnf1	-	-	-	-	-
1D2	-	+	-	-	-	-	-	-
1F8	-	-	-	-	-	-	-	-
2D5	-	-	-	-	-	-	-	-
2F8	+	+	cnf1	cdtB-IV	-	-	-	-
2G2	+	-	-	-	-	-	-	-
4A9	-	-	-	-	-	-	-	-
6A8	+	+	cnf1	-	-	-	-	-
6G8	+	+	cnf1	-	-	-	-	-
6G10	-	-	-	cdtB-IV	-	-	-	-
6G11	-	-	-	-	-	-	-	-
7G1	-	-	-	-	-	-	-	-
7G2	+	+	cnf1	-	-	-	-	-
8A9	+	+	-	-	-	-	-	-
8A10	-	-	-	-	-	-	-	-
8F1	+	-	cnf1	-	-	-	-	-
8G8	-	-	-	-	-	-	-	-
9G5	+	+	cnf1	-	-	+	-	-
10D12	-	+	-	-	-	-	-	-
10E9	+	+	cnf1	-	-	-	-	-
11F1	-	-	-	-	-	-	-	-
11G5	-	+	-	-	-	-	-	-
12B1	+	+	cnf1	-	-	-	-	-
13H2	+	+	cnf1	-	-	-	-	-
14H4	-	+	-	-	-	+	+ (afaE5)	-
15D1	+	-	-	-	-	-	-	-
15D3	+	+	cnf1	-	-	-	-	-
16C1	-	+	-	-	-	-	-	-
17G3	+	-	cnf1	-	-	-	-	-
18C3	+	+	cnf1	-	-	-	-	-
18C5	-	-	-	-	-	-	-	-
18H5	-	+	-	-	-	-	-	-
19D12	+	+	cnf1	-	-	-	-	-
19G1	-	+	-	-	-	-	-	-
19H2	+	+	cnf1	cdtB-IV	-	-	-	-
20B6	+	+	cnf1	-	-	-	-	-
20C3	-	+	-	cdtB-I	-	-	-	-
20D5	-	-	-	-	-	-	-	-
Diverticulosis
1D5	-	-	-	-	-	-	-	-
4D5	+	+	cnf1	-	-	-	-	-
9D7	-	-	-	-	-	-	-	-
9F1	-	-	-	-	-	-	-	-
9F4	-	-	-	-	-	-	-	-
11D9	+	+	cnf1	-	-	-	-	-
12H1	-	+	-	-	-	-	-	-
13D1	+	+	cnf1	-	-	-	-	-
15C1	-	-	-	-	-	-	-	-
16A4	-	+	-	-	-	-	-	-
16A8	-	-	-	-	-	-	-	-
17C1	-	-	-	-	-	-	-	-
17F2	-	-	-	-	-	-	-	-
17E1	-	-	-	-	-	-	-	-
18E6	+	+	cnf1	-	-	-	-	-

¹Alpha-hemolysin expression was analysed after over-night growth of bacteria on agar plates containing sheep blood. cnf: Cytotoxic necrotizing factor; cdt: Cytolethal distending toxins; cif: Cycle-inhibiting factor; afa: Afimbrial adhesion. E. coli: Escherichia coli.

Citation: Raisch J, Buc E, Bonnet M, Sauvanet P, Vazeille E, de Vallée A, Déchelotte P, Darcha C, Pezet D, Bonnet R, Bringer MA, Darfeuille-Michaud A. Colon cancer-associated B2 Escherichia coli colonize gut mucosa and promote cell proliferation. World J Gastroenterol 2014; 20(21): 6560-6572
URL: https://www.wjgnet.com/1007-9327/full/v20/i21/6560.htm
DOI: https://dx.doi.org/10.3748/wjg.v20.i21.6560