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, 3 (13), 1115-21

Lack of Apoptosis in Sendai Virus-Infected HEp-2 Cells Without Participation of Viral Antiapoptosis Gene

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Lack of Apoptosis in Sendai Virus-Infected HEp-2 Cells Without Participation of Viral Antiapoptosis Gene

A H Koyama et al. Microbes Infect.

Abstract

Sendai virus (SeV) has been reported to induce apoptosis in many types of cells. In HEp-2 cells, however, it did not induce apoptosis in most of the infected cells under the conditions in which vesicular stomatitis virus induced massive apoptosis. The use of a novel technique, which allows the detection of viral antiapoptotic activity in the infected cells, showed that SeV does not have any antiapoptotic activity to interfere with the induction of apoptosis. Consistently, vesicular stomatitis virus-induced apoptosis was not interfered with by preinfection with SeV. These results indicate that the observed lack of apoptosis in these SeV-infected cells does not result from the suppression of apoptosis by viral antiapoptotic activity in the infected cells and suggest that, without activating a signaling pathway for the induction of apoptotic response in the infected cells, SeV can escape apoptosis of the cells, allowing long-term survival of the infected cells.

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