Adherence to and penetration through endothelial cells by oral treponemes

Wiley - Tập 14 Số 6 - Trang 379-383 - 1999
Sonja Peters1, M Valdez, George R. Riviere, D D Thomas
1Department of Periodontics, University of Texas Health Science Center at San Antonio 78284, USA.

Tóm tắt

Oral spirochetes were co‐incubated with monolayers of endothelial cells seeded into multiwell plates or onto filters mounted in plastic chambers. Attachment was assessed using an enzyme‐linked immunosorbent assay and scanning electron microscopy. Invasiveness was determined by monitoring media beneath filters within chambers for spirochetes using darkfield microscopy. Transmission electron microscopy was used to estimate intercellular and intracellular passage of spirochetes through monolayers. All tested treponemes attached to monolayers in a dose‐ and time‐ dependent manner, except Treponema phagedenis. A few treponemes were observed within host cell cytoplasm. Unidentified spirochetes obtained from dental plaque were also invasive. Results indicate that oral spirochetes possess virulence‐associated characteristics shared with pathogenic spirochetes. Further studies should examine the possibility that invasive spirochetes could disseminate from within affected gingiva.

Từ khóa


Tài liệu tham khảo

Barbour AG, 1984, Isolation and cultivation of Lyme disease spirochetes., Yale J Biol Med, 57, 521

10.1902/jop.1983.54.10.598

10.1902/jop.1997.68.10.1010

Comstock LE, 1989, Penetration of endothelial cell monolayers by Borrelia burgdorferi., Infect Immun, 57, 1626, 10.1128/iai.57.5.1626-1628.1989

10.1016/0882-4010(91)90074-K

10.1902/jop.1983.54.11.671

10.1146/annurev.cb.08.110192.002001

Fitzgerald TJ, 1977, Characterization of the attachment of Treponema pallidum (Nichols strain) to cultured mammalian cells and the potential relationship of attachment to pathogenicity., Infect Immun, 18, 467, 10.1128/iai.18.2.467-478.1977

10.1111/j.1600-0765.1980.tb00315.x

10.1146/annurev.ge.28.120194.002143

Jaffe EA, 1972, Culture of human endothelial cells derived from human umbilical cord veins., Circulation, 46, 211

10.1111/j.1399-302X.1993.tb00550.x

Leschine SB, 1980, Rifampin as a selective agent for isolation of oral spirochetes., J Clin Microbiol, 12, 792, 10.1128/jcm.12.6.792-795.1980

10.1902/jop.1965.36.4.328

10.1111/j.1600-051X.1981.tb02352.x

10.1902/jop.1993.64.5.355

Olsen I, 1984, Attachment of Treponema denticola to cultured human epithelial cells., Scand J Dent Res, 92, 55

Reijntjens F, 1986, Adherence of oral treponemes and their effect on morphological damage and detachment of epithelial cells in vitro., Infect Immun, 51, 642, 10.1128/iai.51.2.642-647.1986

10.1056/NEJM199108223250803

Riviere GR, 1991, Pathogen‐related oral spirochetes from dental plaque are invasive., Infect Immun, 59, 3377, 10.1128/iai.59.10.3377-3380.1991

Riviere GR, 1991, Pathogen‐related spirochetes identified within gingival tissue from patients with acute necrotizing ulcerative gingivitis., Infect Immun, 59, 2653, 10.1128/iai.59.8.2653-2657.1991

10.1111/j.1600-0765.1982.tb01155.x

Shoberg RJ, 1993, Specific adherence of Borrelia burgdorferi extracellular vesicles to human endothelial cells in culture., Infect Immun, 61, 3892, 10.1128/iai.61.9.3892-3900.1993

10.1111/j.1600-0765.1984.tb01319.x

Thomas DD, 1989, Interaction of Lyme disease spirochetes with cultured eucaryotic cells., Infect Immun, 57, 1324, 10.1128/iai.57.4.1324-1326.1989

10.1073/pnas.85.10.3608

10.1111/j.1600-0714.1989.tb01562.x