The effects of Clostridium perfringens enterotoxin on morphology, viability, and macromolecular synthesis in Vero cells.

Abstract:

:Vero (African green monkey kidney) cells grown in tissue culture monolayer were sensitive to Clostridium perfringens enterotoxin. Within 30 minutes of exposure to the enterotoxin gross morphological damage was observed and within 40 minutes approximately 75% of the cells had detached. Nearly half of the cells were nonviable following 35 to 40 minutes incubation with the enterotoxin. Doses as low as 0.1 ng caused small but detectable inhibition of plating efficiency of the cells while more than 100 ng caused the inhibition to approach 100%. Total inhibition of DNA, RNA, and protein synthesis occurred within 30 minutes exposure to enterotoxin. Heat inactivated enterotoxin had no apparent effects upon cellular morphology, detachment, viability, plating efficiency, or incorporation. We propose that the enterotoxin induces structural damage to the cytoplasmic membrane which results in loss of electrolytes and other essential substances from the cells. The outcome of this process is shut down of macromolecular synthesis, gross morphological damage, and eventual death of the cell.

journal_name

J Cell Physiol

authors

McClane BA,McDonel JL

doi

10.1002/jcp.1040990205

subject

Has Abstract

pub_date

1979-05-01 00:00:00

pages

191-200

issue

2

eissn

0021-9541

issn

1097-4652

journal_volume

99

pub_type

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