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J Virol. 1987 November; 61(11): 3441-3447

Measles virus infection of B lymphocytes permits cellular activation but blocks progression through the cell cycle.

M B McChesney, J H Kehrl, A Valsamakis, A S Fauci and M B Oldstone

Department of Immunology, Research Institute of Scripps Clinic, La Jolla, California 92037.

ABSTRACT

Measles virus infection of unstimulated B lymphocytes suppresses both proliferation and differentiation into immunoglobulin-secreting cells. However, mitogenic stimulation of these infected cells results in cell volume enlargement, rapid RNA synthesis, and the expression of cell surface activation antigens 4F2, HLA-DS, and transferrin receptor. The cellular genes c-myc and histone 2B are induced during early G1 and S phase of the cell cycle, respectively, and viral RNA synthesis can be detected during this interval. However, total RNA synthesis is decreased at 48 h after stimulation, and the histone 2B RNA steady-state level at 48 h is fivefold less than that in uninfected cells. This sequence of events defines an arrest in the G1 phase of the cell cycle in measles virus-infected B cells.


J Virol. 1987 November; 61(11): 3441-3447




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