Abstract: The present invention concerns a method of culturing embryonic stem (ES) cells of avian, comprising the steps of: a) suspending ES cells originating from the blastoderm disk of fertilized un-incubated avian egg(s) in a basal culture medium supplemented with: insulin-like growth factor-1 (IGF-1) and ciliary neurotrophic factor (CNTF); and animal serum; and optionally, at least one growth factors selected in the group comprising interleukin 6 (II-6), interleukin 6 receptor (II-6R), stem cell factor (SCF), fibroblast growth factor (FGF), leukaemia inhibitory factor (LIF), interleukin 11 (II-11), oncostatin and cardiotrophin; b) seeding the suspension of ES cells obtained in step a) on a layer of feeder cells and further culturing the ES cells for at least between 2 to 10 passages; c) optionally removing at least one growth factors selected SCF, FGF, II-6, II-6R, LIF, oncostatin and cardiotrophin and II-11 from the culture medium; d) further culturing the ES cells in the medium of step c) on a layer of feeder cel

Abstract: Method of culturing embryonic stem (ES) cells of avian origin includes the steps of: a) suspending ES cells originating from the blastoderm disk of fertilized un-incubated avian egg(s) in a basal culture medium supplemented with: insulin-like growth factor-1 (IGF-1) and ciliary neurotrophic factor (CNTF); and animal serum; and, optionally, at least one growth factor selected from among interleukin 6 (Il-6), interleukin 6 receptor (Il-6R), stem cell factor (SCF), fibroblast growth factor (FGF), leukemia inhibitory factor (LIF), interleukin 11 (Il-11), oncostatin and/or cardiotrophin; b) seeding the suspension of ES cells obtained in step a) on a layer of feeder cells and further culturing the ES cells for at least 2 to 10 passages; c) optionally, removing at least one growth factor selected from among SCF, FGF, Il-6, Il-6R, LIF, oncostatin, cardiotrophin and Il-11 from the culture medium; and d) further culturing the ES cells in the medium of step c) on a layer of feeder cells.

Abstract: The present invention concerns a substituted pyrrolidinone of the following formula I or a salt, solvate, tautomer, isotope, enantiomer, diastereoisomer or racemic mixture thereof: (I), for the treatment of hepatitis C.

Abstract: The present invention relates to the field of virology. More precisely, the invention provides a method of determining the ability of a test compound to modulate the biological activity of a variant of a target protein, wherein said test compound is previously known to modulate the biological activity of said protein. This invention is useful to determine whether a drug candidate, such as anti-viral compounds (eg. against hepatitis C virus: NS5B, NS3), active against a target protein is active against a variant of said protein (eg. polymorphisms, genotypes or mutants).

Abstract: Method of culturing embryonic stem (ES) cells of avian origin includes the steps of: a) suspending ES cells originating from the blastoderm disk of fertilized un-incubated avian egg(s) in a basal culture medium supplemented with: insulin-like growth factor-1 (IGF-1) and ciliary neurotrophic factor (CNTF); and animal serum; and, optionally, at least one growth factor selected from among interleukin 6 (II-6), interleukin 6 receptor (II-6R), stem cell factor (SCF), fibroblast growth factor (FGF), leukemia inhibitory factor (LIF), interleukin 11 (II-11), oncostatin and/or cardiotrophin; b) seeding the suspension of ES cells obtained in step a) on a layer of feeder cells and further culturing the ES cells for at least 2 to 10 passages; c) optionally, removing at least one growth factor selected from among SCF, FGF, II-6, II-6R, LIF, oncostatin, cardiotrophin and II-11 from the culture medium; and d) further culturing the ES cells in the medium of step c) on a layer of feeder cells.

Abstract: The invention concerns the use of an avian cell for producing an exogenous protein of interest in an animal belonging to the avian species, said cell being transformed by an expression vector comprising the gene coding for said protein, said cell being introduced in the sub-germinal cavity of an embryo, the blood stream of the embryo or being used as nucleus source for nuclear transfer into an avian egg enucleated or not, or whereof the chromosomes have been destroyed.