Parry EW. Hydrocortisone protects cycloheximide-challenged mice pretreated with Ehrlich ascites tumour cells or with cell-free Ehrlich ascites tumour fluid.
J Comp Pathol 1990;
103:315-9. [PMID:
2258469 DOI:
10.1016/s0021-9975(08)80052-7]
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Abstract
The invariably fatal outcome following cycloheximide challenge of mice pretreated 24 h earlier with either 1 x 10(7) washed Ehrlich ascites tumour cells i.v. or with 0.2 ml of cell-free Ehrlich ascites tumour fluid i.v. was prevented by hydrocortisone treatment. However, glucocorticosteroids failed to prevent the fatal outcome of cycloheximide challenge in mice bearing 5-day-old Ehrlich ascites tumours. The results are interpreted as indicating that there is a steroid demand which must be met to ensure survival of cycloheximide-challenged mice pretreated with tumour cells or with cell-free tumour ascites fluid and that an additional and essential requirement for uninterrupted protein synthesis exists in the case of mice with established ascites tumours and challenged with cycloheximide.
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