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J Virol, June 1998, p. 5313-5317, Vol. 72, No. 6
0022-538X/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
Incorporation of Fowl Plague Virus Hemagglutinin into Murine
Leukemia Virus Particles and Analysis of the Infectivity of the
Pseudotyped Retroviruses
Theodora
Hatziioannou,1
Sandrine
Valsesia-Wittmann,1
Stephen J.
Russell,2 and
François-Loïc
Cosset1,*
Centre de Génétique
Moléculaire et Cellulaire, CNRS UMR5534, UCB Lyon-I, 69622 Villeurbanne Cedex, France,1 and
Cambridge Centre for Protein Engineering, MRC Center, CB2
2QH Cambridge, United Kingdom2
Received 28 July 1997/Accepted 20 February 1998
We describe retrovirus particles carrying the fowl plague virus
(FPV) hemagglutinin (HA). When expressed in cells providing Moloney
murine leukemia virus (MoMLV) Gag and Pol proteins and a
lacZ retroviral vector, FPV HA was found to be efficiently
expressed, correctly processed, and stably incorporated into retroviral
particles. HA-bearing retroviruses were infectious with a wide host
range and were only 10-fold less infectious than retroviruses carrying wild-type MLV retroviral envelopes. We also coexpressed HA proteins in
retroviral particles with chimeric MoMLV-derived envelope glycoproteins that efficiently retarget virus attachment but are only weakly fusogenic. Our results suggest that HA can in some cases enhance the
fusion ability of these retroviral particles, depending on the cell
surface molecule that is used as a receptor.
*
Corresponding author. Mailing address: CGMC, CNRS
UMR5534, UCB Lyon-I, 43 bd du 11 Novembre 1918, 69622 Villeurbanne Cedex, France. Phone: 33 4 72 44 81 90. Fax: 33 4 72 44 05 55. E-mail: cosset{at}cismsun.univ-lyon1.fr.
J Virol, June 1998, p. 5313-5317, Vol. 72, No. 6
0022-538X/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.
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