title: The BMEI0216 gene of Brucella melitensis is required for internalization in HeLa cells.
abstract: Brucella is an intracellular facultative bacterium able to survive and multiply in professional and non-professional phagocytes. However, its adhesion and invasion mechanisms have not been elucidated yet. In this work, we assess the interruption of a BMEI0216 gene of Brucella melitensis, by using HeLa epithelial cells and murine macrophages for invasion and replication assays. The mutation did not affect survival or multiplication within macrophages. Likewise, invasion assays with HeLa cells revealed no differences at 30 and 45 min, whereas, at 1 and 2h, the infection ability of the mutant was drastically reduced. These results suggest that the BMEI0216 gene is required for B. melitensis internalization.
authors: Departamento de Microbiología e Inmunología, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Coyoacán 04510, Mexico.
authors: Rigoberto
authors: R
authors: Hernández-Castro
authors: Antonio
authors: A
authors: Verdugo-Rodríguez
authors: José Luis
authors: JL
authors: Puente
authors: Francisco
authors: F
authors: Suárez-Güemes
mesh_terms: D000818:Animals; D001426:Bacterial Proteins / Q000235:genetics / Q000502:physiology*; D017347:Brucella melitensis / Q000235:genetics* / Q000472:pathogenicity*; D002460:Cell Line; D023061:Gene Order; D005798:Genes, Bacterial / Q000235:genetics / Q000502:physiology*; D005816:Genetic Complementation Test; D006367:HeLa Cells; D006801:Humans; D008264:Macrophages / Q000166:cytology / Q000382:microbiology; D051379:Mice; D009154:Mutation; D013997:Time Factors
chemical_list: D001426:Bacterial Proteins