Poor invasion of trophoblastic cells but normal plaque formation in fibroblastic cells despite actA deletion in a group of Listeria monocytogenes strains persisting in some food processing environments
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Poor invasion of trophoblastic cells but normal plaque formation in fibroblastic cells despite actA deletion in a group of Listeria monocytogenes strains persisting in some food processing environments. / Holch, Anne; Gottlieb, Caroline Trebbien; Larsen, Marianne Halberg; Ingmer, Hanne; Gram, Lone.
I: Applied and Environmental Microbiology, Bind 76, Nr. 10, 2010, s. 3391-3397.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Poor invasion of trophoblastic cells but normal plaque formation in fibroblastic cells despite actA deletion in a group of Listeria monocytogenes strains persisting in some food processing environments
AU - Holch, Anne
AU - Gottlieb, Caroline Trebbien
AU - Larsen, Marianne Halberg
AU - Ingmer, Hanne
AU - Gram, Lone
PY - 2010
Y1 - 2010
N2 - We determined mammalian cell invasion and virulence gene (inlA,inlB, and actA) sequences of Listeria monocytogenes strainsbelonging to a molecular subtype (RAPD 9) that often persistsin Danish fish-processing plants. These strains invaded humanplacental trophoblasts less efficiently than other L. monocytogenesstrains, including clinical strains, and they carry a prematurestop codon in inlA. Eight of 15 strains, including the RAPD9 and maternofetal strains, had a 105-nucleotide deletion inactA that did not affect cell-to-cell spread in mouse fibroblasts.The RAPD 9 strains may still be regarded as of low virulencewith respect to human listeriosis.
AB - We determined mammalian cell invasion and virulence gene (inlA,inlB, and actA) sequences of Listeria monocytogenes strainsbelonging to a molecular subtype (RAPD 9) that often persistsin Danish fish-processing plants. These strains invaded humanplacental trophoblasts less efficiently than other L. monocytogenesstrains, including clinical strains, and they carry a prematurestop codon in inlA. Eight of 15 strains, including the RAPD9 and maternofetal strains, had a 105-nucleotide deletion inactA that did not affect cell-to-cell spread in mouse fibroblasts.The RAPD 9 strains may still be regarded as of low virulencewith respect to human listeriosis.
U2 - 10.1128/AEM.02862-09
DO - 10.1128/AEM.02862-09
M3 - Journal article
C2 - 20348313
VL - 76
SP - 3391
EP - 3397
JO - Applied and Environmental Microbiology
JF - Applied and Environmental Microbiology
SN - 0099-2240
IS - 10
ER -
ID: 22263009