Abstract
Persistent infections with mumps virus were established in several human lymphoid cells of T-cell origin (Molt-4, TALL-1, and CCRF-CEM) and human monocyte cells (U937 and THP-1). 2',5'-Oligoadenylate synthetase (2-5AS) activity was demonstrated to be only slightly induced by interferon (IFN) or TPA (12-O-tetradecanoyl-phorbol-13-acetate) treatment in these cells. Treatment of the persistently infected cells with IFN or TPA did not stimulate an increase in the amount of synthetase mRNA. Induction of cell differentiation and augmentation of IFN production by TPA were demonstrated in U937 cells persistently infected with mumps virus (U937-MP). Similar results for IFN production were obtained from differentiated U937 cells. It is suggested that cell differentiation of U937 cells might be associated with the development of IFN inducibility.
Original language | English |
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Pages (from-to) | 675-679 |
Number of pages | 5 |
Journal | MICROBIOLOGY and IMMUNOLOGY |
Volume | 40 |
Issue number | 9 |
DOIs | |
Publication status | Published - 1996 |
Externally published | Yes |
Keywords
- 2',5'-Oligoadenylate synthetase
- IFN
- Mumps virus
- Persistent infection
- TPA
- U937
ASJC Scopus subject areas
- Microbiology
- Immunology
- Virology