Patents Assigned to Vivalis
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Patent number: 8445193Abstract: A microwell array chip that has multiple microwells and is employed to contain a single lymphocyte specimen in each microwell and detect antigen-specific lymphocytes in single units; wherein the microwell array chip is of a shape and of dimensions where only one lymphocyte is contained in each microwell. A method of detecting antigen-specific lymphocytes comprising the steps of adding antigen to each microwell in the above microwell array chip, stimulating the lymphocyte specimen, and detecting lymphocyte specimens reacting with the antigen.Type: GrantFiled: December 17, 2008Date of Patent: May 21, 2013Assignee: VivalisInventors: Atsushi Muraguchi, Hiroyuki Kishi, Eiichi Tamiya, Masayasu Suzuki
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Publication number: 20120238001Abstract: The present invention relates to the development and manufacturing of viral vaccines. In particular, the invention relates to the field of industrial production of viral vectors and vaccines, more in particular to the use of avian embryonic stem cells, preferably the EBx® cell line derived from chicken embryonic stem cells, for the production of viral vectors and viruses. The invention is particularly useful for the industrial production of viral vaccines to prevent viral infection of humans and animals.Type: ApplicationFiled: March 17, 2012Publication date: September 20, 2012Applicant: VIVALISInventors: Majid Mehtali, Patrick Champion-Arnaud, Arnaud Leon
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Publication number: 20120189579Abstract: 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.Type: ApplicationFiled: July 9, 2010Publication date: July 26, 2012Applicant: VIVALISInventors: Amaya Berecibar, Philippe Guedat, Isabelle Valarche, Céline Mohamed-Arab, Christophe Matt
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Publication number: 20120128630Abstract: The present invention concerns a 1-(6 members azo-heterocyclic)-pyrrolin-2-one compound of the following formula I or a salt, solvate, tautomer, isotope, enantiomer, diastereoisomer or racemic mixture thereof: the pharmaceutical composition thereof and their therapeutic use as inhibitors of Hepatitis C NS5B polymerase.Type: ApplicationFiled: July 9, 2010Publication date: May 24, 2012Applicant: VIVALISInventors: Amaya Berecibar, Philippe Guedat, Céline Mohamed-Arab
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Patent number: 8148132Abstract: The present invention relates to the development and manufacturing of viral vaccines, particularly the industrial production of viral vectors and vaccines, and more particularly the use of avian embryonic stem cells, preferably the EBx cell line derived from chicken embryonic stem cells, for the production of viral vectors and viruses; the invention is particularly useful for the industrial production of viral vaccines to prevent viral infection of humans and animals.Type: GrantFiled: April 11, 2006Date of Patent: April 3, 2012Assignee: VivalisInventors: Majid Mehtali, Patrick Champion-Arnaud, Arnaud Leon
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Publication number: 20120070893Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.Type: ApplicationFiled: March 3, 2010Publication date: March 22, 2012Applicant: VIVALISInventors: Bertrand PAIN, Fabienne Guehenneux
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Publication number: 20110294209Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.Type: ApplicationFiled: August 9, 2011Publication date: December 1, 2011Applicant: VIVALISInventors: Bertrand Pain, Fabienne Guehenneux
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Publication number: 20110251085Abstract: 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).Type: ApplicationFiled: March 16, 2009Publication date: October 13, 2011Applicant: VIVALISInventors: Mehdi Lahmar, Isabelle Valarche, Majid Mehtali
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Publication number: 20100226912Abstract: The invention generally relates to the field of recombinant protein production. More particularly, the invention relates to the use of avian embryonic derived stem cell lines, named EBx®, for the production of proteins and more specifically glycoproteins such as antibodies. The invention is useful for the production of monoclonal IgG1 antibody subtype having high cell-mediated cytotoxic activity. The invention relates to the use of such antibodies as a drug to treat cancers and inflammatory diseases.Type: ApplicationFiled: May 21, 2008Publication date: September 9, 2010Applicant: VIVALISInventor: Majid Mehtali
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Publication number: 20100221825Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.Type: ApplicationFiled: March 3, 2010Publication date: September 2, 2010Applicant: VIVALISInventors: Bertrand PAIN, Fabienne Guehenneux
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Patent number: 7771980Abstract: The present invention relates to a method for replicating poxviruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.Type: GrantFiled: October 1, 2008Date of Patent: August 10, 2010Assignee: VivalisInventors: Fabienne Guehenneux, Bertrand Pain
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Publication number: 20100111999Abstract: The present invention relates to a method for replicating poxviruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.Type: ApplicationFiled: November 3, 2009Publication date: May 6, 2010Applicant: VIVALISInventors: Fabienne Guehenneux, Bertrand Pain
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Publication number: 20100062489Abstract: The present invention relates to the development and manufacturing of viral vaccines. In particular, the invention relates to the field of industrial production of viral vectors and vaccines, more in particular to the use of avian embryonic stem cells, preferably the EBx® cell line derived from duck embryonic stem cells, for the production of viral vectors and viruses. The invention is particularly useful for the industrial production of viral vaccines to prevent viral infection of humans and animals.Type: ApplicationFiled: April 23, 2008Publication date: March 11, 2010Applicant: VIVALISInventors: Fabienne Guehenneux, Karine Moreau, Magali Esnault, Majid Mehtali
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Publication number: 20090239286Abstract: The present invention relates to a method for replicating poxviruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.Type: ApplicationFiled: October 1, 2008Publication date: September 24, 2009Applicant: VIVALISInventors: Fabienne GUEHENNEUX, Bertrand Pain
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Publication number: 20090239297Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.Type: ApplicationFiled: January 8, 2009Publication date: September 24, 2009Applicant: VIVALISInventors: Bertrand PAIN, Fabienne Guehenneux
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Publication number: 20090081251Abstract: The present invention relates to the development and manufacturing of viral vaccines, particularly the industrial production of viral vectors and vaccines, and more particularly the use of avian embryonic stem cells, preferably the EBx cell line derived from chicken embryonic stem cells, for the production of viral vectors and viruses; the invention is particularly useful for the industrial production of viral vaccines to prevent viral infection of humans and animals.Type: ApplicationFiled: April 11, 2006Publication date: March 26, 2009Applicant: VIVALISInventors: Majid Mehtali, Patrick Champion-Arnaud, Arnaud Leon
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Publication number: 20080274125Abstract: The present invention concerns the field of biology and virology. In particular, the invention concerns a method for obtaining human cell lines, in particular human stem cells derived from human embryonic stem cells, the method comprising separation from the serum, the feeder layer and at least one growth factor. The cell lines are capable of proliferating indefinitely in a basic culture medium. The invention also concerns the use of the cells derived from such cell lines for virus replication, and more particularly for producing human or veterinary vaccines, as well as for producing recombinant proteins of therapeutic interest.Type: ApplicationFiled: December 8, 2005Publication date: November 6, 2008Applicant: VIVALISInventor: Fabienne Guehenneux
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Patent number: 7432101Abstract: The present invention relates to a method for replicating pox viruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.Type: GrantFiled: July 22, 2004Date of Patent: October 7, 2008Assignee: VivalisInventors: Fabienne Guehenneux, Bertrand Pain
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Publication number: 20060233834Abstract: The present invention relates to a method for replicating pox viruses such as vaccinia virus comprising the steps of inoculating avian embryonic stem cells with viral particles and culturing said cells in a basal medium until cells lysis occurs and newly produced viral particles are released in said medium.Type: ApplicationFiled: July 22, 2004Publication date: October 19, 2006Applicant: VIVALISInventors: Fabienne Guehenneux, Bertrand Pain
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Publication number: 20040058441Abstract: The present invention relates to a method for producing avian cell lines, comprising gradual or complete withdrawal of growth factors, serum and/or feeder layer so that the established lines are adherent or nonadherent cells capable of proliferating indefinitely in a basic culture medium. The invention also relates to the cells derived from such lines which are particularly useful for the production of substances of interest.Type: ApplicationFiled: July 24, 2003Publication date: March 25, 2004Applicant: VIVALISInventors: Bertrand Pain, Fabienne Guehenneux