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Author(s): Appelberg, R
Leal, IS
Title: Mutants of Listeria monocytogenes defective in in vitro invasion and cell-to-cell spreading still invade and proliferate in hepatocytes of neutropenic mice
Issue Date: 2000
Abstract: Listeria monocytogenes mutants defective in the actA gene, the plcB gene, and the inlA and inlB genes were less virulent when injected intravenously into BALB/c mice. The growth of these strains as well as of the virulent wild-type strains was increased by treating mice with a neutrophil-specific depleting monoclonal antibody, RB6-8C5. Histologic examination of the livers of the treated animals showed intrahepatocytic proliferation of the listeriae in all cases. Our data show that more than one pathway exists that allows L. monocytogenes to invade parenchymal cells. One pathway most likely involves the actA and plcB gene products, and a second one probably involves the internalins.
Subject: Infecções, Medicina básica
Infections, Basic medicine
Scientific areas: Ciências médicas e da saúde::Medicina básica
Medical and Health sciences::Basic medicine
Document Type: Artigo em Revista Científica Internacional
Rights: openAccess
Appears in Collections:ICBAS - Artigo em Revista Científica Internacional

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