METHOD FOR SELECTING A PERMISSIVE CELL LINE FOR REPLICATING AVIAN VIRUSES

摘要

The present invention relates to a method for obtaining an untransformed avian cell line enabling in vitro avian virus replication. Said method includes the following steps: a) culturing avian embryonic stem cells in the presence of a stroma for at least 3 days; b) culturing for at least 2 days in a medium having a low serum concentration; c) culturing for at least 2 days in a medium having a low serum concentration containing 1 to 10 mM of hexamethyleme bisacetamide (HMBA); d) culturing for at least 10 days in a medium having a low serum concentration; and e) culturing or freezing an avian cell line enabling avian virus replication. The invention also relates to the resulting cell line and to the use thereof in vaccine preparations.