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Morphological destruction of cultured cells by the attachment of Treponema pallidum.
  1. T J Fitzgerald,
  2. L A Repesh,
  3. S G Oakes

    Abstract

    The incubation of Treponema pallidum with rabbit testicular cells, HEP-2 cells, human foreskin cells, rat cardiac cells, and rat skeletal muscle cells caused morphological disruption of these cultured cells. Control preparations of heat-inactivated treponemes, a high-speed supernatant in which treponemes had been pelleted, and culture medium failed to damage the tissue cells, as did viable treponemes when the cells were incubated in inverted Sykes-Moore chambers. Thus, cellular disruption is not associated with soluble treponemal, soluble inflammatory, or soluble testicular constituents but is mediated by the specific attachment of T pallidum. This organism apparently elaborates some type of toxic activity that lyses membranes: this may explain some of the histopathology of syphilitic disease.

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