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Journal of Virology, June 1999, p. 5220-5224, Vol. 73, No. 6
Immunité & Infections Virales, IVMC,
CNRS-UCBL UMR 5537, 69372 Lyon Cedex 08, France
Received 16 November 1998/Accepted 18 March 1999
Measles virus (MV) has a tropism restricted to humans and primates
and uses the human CD46 molecule as a cellular receptor. MV has been
adapted to grow in chicken embryonic fibroblasts (CEF) and gave rise to
an attenuated live vaccine. Hallé and Schwarz MV strains were
compared in their ability to infect both simian Vero cells and CEF.
Whereas both strains infected Vero cells, only the CEF-adapted Schwarz
strain was able to efficiently infect CEF. Since the expression of the
human MV receptor CD46 rendered the chicken embryonic cell line TCF
more permissive to the infection by the Hallé MV strain, the MV
entry into CEF appeared to be a limiting step in the absence of prior
MV adaptation. CEF lacked reactivity with anti-CD46 antibodies but were
found to express another protein allowing MV binding as an alternative
receptor to CD46.
0022-538X/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Infection of Chicken Embryonic Fibroblasts by
Measles Virus: Adaptation at the Virus Entry Level
*
Corresponding author. Mailing address: Immunité & Infections Virales, IVMC, CNRS-UCBL UMR 5537, Faculté de
Médecine Lyon RTH Laennec, 69372 Lyon Cedex 08, France.
Phone: 33 (0)4 78 77 86 18. Fax: 33 (0)4 78 77 87 54. E-mail:
gerlier{at}laennec.univ-lyon1.fr.
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