Virus-like particles and process for producing the same

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 7/00 (2006.01) A61K 38/00 (2006.01) A61K 39/21 (2006.01) A61K 45/00 (2006.01) A61K 48/00 (2006.01) A61P 31/12 (2006.01) C07K 14/16 (2006.01) C12N 7/02 (2006.01) C12N 7/04 (2006.01) C12N 15/33 (2006.01)

Patent

CA 2418091

A process whereby virus-like micrograins of a virus having a lipid bilayer membrane in which the protein thereof is enclosed can be produced in a vector virus-free state within a short period of time, thereby providing virus-like micrograins usable for various purposes. The above production process involves the following steps (a) to (e): (a) integrating a gene encoding a protein essentially required in the budding of virus-origin grains or its fragment into a vector which can be expressed in eucaryotic microorganisms; (b) transfecting the above vector into a eucaryotic microorganism; (c) culturing the above eucaryotic microorganism thus transformed; (d) eliminating the cell wall from the eucaryotic microorganism; and (e) further culturing and collecting the culture supernatant.

L'invention concerne un procédé au moyen duquel des micrograins de type viral d'un virus présentant une membrane bicouche lipidique renfermant sa protéine peuvent être produits rapidement dans un vecteur exempt de virus, fournissant ainsi des micrograins de type viral utilisable à diverses fins. Le procédé de production susmentionné comprend les étapes suivantes (a) à (e) qui consistent : (a) à intégrer un gène codant une protéine essentiellement nécessaire dans le bourgeonnement de grains d'origine virale ou de ses fragments dans un vecteur pouvant être exprimé dans des micro-organismes eucaryotes, (b) à transfecter le vecteur susmentionné dans un micro-organisme eucaryote, (c) à mettre en culture le micro-organisme eucaryote ainsi transformé, (d) à éliminer la paroi cellulaire du micro-organisme eucaryote, puis (e) à mettre en culture et à collecter le surnageant de culture.

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