{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T15:14:38Z","timestamp":1791299678098,"version":"4.1.0"},"reference-count":39,"publisher":"American Society for Microbiology","issue":"6","license":[{"start":{"date-parts":[[2007,3,15]],"date-time":"2007-03-15T00:00:00Z","timestamp":1173916800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Appl Environ Microbiol"],"published-print":{"date-parts":[[2007,3,15]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            An estimated 65% of infective diseases are associated with the presence of bacterial biofilms. Biofilm-issued planktonic cells promote blood-borne, secondary sites of infection by the inoculation of the infected sites with bacteria from the intravascular space. To investigate the potential role of early detachment events in initiating secondary infections, we studied the phenotypic attributes of\n            <jats:italic>Staphylococcus aureus<\/jats:italic>\n            planktonic cells eroding from biofilms with respect to expression of the collagen adhesin, CNA. The collagen-binding abilities of\n            <jats:italic>S. aureus<\/jats:italic>\n            have been correlated to the development of osteomyelitis and septic arthritis. In this study, we focused on the impact of CNA expression on\n            <jats:italic>S. aureus<\/jats:italic>\n            adhesion to immobilized collagen in vitro under physiologically relevant shear forces. In contrast to the growth phase-dependent adhesion properties characteristic of\n            <jats:italic>S. aureus<\/jats:italic>\n            cells grown in suspension, eroding planktonic cells expressed invariant and lower effective adhesion rates regardless of the age of the biofilm from which they originated. These results correlated directly with the surface expression level of CNA. However, subsequent analysis revealed no qualitative differences between biofilms initiated with suspension cells and secondary biofilms initiated with biofilm-shed planktonic cells. Taken together, our findings suggest that, despite their low levels of CNA expression,\n            <jats:italic>S. aureus<\/jats:italic>\n            planktonic cells shed from biofilms retain the capacity for metastatic spread and the initiation of secondary infection. These findings demonstrate the need for a better understanding of the phenotypic properties of eroding planktonic cells, which could lead to new therapeutic strategies to target secondary infections.\n          <\/jats:p>","DOI":"10.1128\/aem.01319-06","type":"journal-article","created":{"date-parts":[[2007,2,4]],"date-time":"2007-02-04T01:19:29Z","timestamp":1170551969000},"page":"1834-1841","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":51,"title":["Erosion from\n            <i>Staphylococcus aureus<\/i>\n            Biofilms Grown under Physiologically Relevant Fluid Shear Forces Yields Bacterial Cells with Reduced Avidity to Collagen"],"prefix":"10.1128","volume":"73","author":[{"given":"Patrick","family":"Ymele-Leki","sequence":"first","affiliation":[{"name":"Department of Chemical and Biochemical Engineering, University of Maryland Baltimore County, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julia M.","family":"Ross","sequence":"additional","affiliation":[{"name":"Department of Chemical and Biochemical Engineering, University of Maryland Baltimore County, Baltimore, Maryland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","first-page":"355","volume":"24","year":"2001","unstructured":"Arciola, C. 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