Method for industrially producing a japanese encephalitis...

C - Chemistry – Metallurgy – 12 – N

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C12N 7/02 (2006.01) A61K 39/12 (2006.01)

Patent

CA 2228128

A method is disclosed for industrially producing a Japanese encephalitis vaccine, wherein (a) cells from a cell line are cultured, (b) the resulting cell culture is inoculated with a Japanese encephalitis virus in the presence of a viral growth medium, (c) the virus is propagated and multiplied on the cells, (d) the viral growth medium is recovered in the form of a suspension of viruses produced by the cells, (e) the virus suspension is purified in at least one ion exchange chromatography step and a gel permeation step, and (f) the virus suspension is formulated and converted into a pharmaceutical form to preserve it until the moment of use. A Japanese encephalitis vaccine characterised in that it comprises a Japanese encephalitis virus produced by culturing cells from a cell line, and in that the cellular DNA content is less than 100 pg/dose, is also disclosed.

L'invention concerne un procédé de production industrielle d'un vaccin contre l'encéphalite japonaise, caractérisé en ce qu'il comprend les étapes suivantes: a) mise en culture de cellules provenant d'une lignée cellulaire, b) inoculation de la culture de cellules obtenue par du virus de l'encéphalite japonaise en présence d'un milieu de multiplication virale, c) propagation et multiplication du virus sur les cellules, d) récolte du milieu de multiplication virale constituant une suspension de virus produits par les cellules, e) purification de la suspension virale par au moins une étape de chromatographie échangeuse d'ions et une étape de perméation de gel, f) formulation et mise sous forme pharmaceutique de la suspension virale pour assurer sa conservation jusqu'à son utilisation. L'invention concerne également un vaccin contre l'encéphalite japonaise caractérisé en ce qu'il comporte du virus de l'encéphalite japonaise obtenu par culture sur cellules provenant d'une lignée cellulaire, et en ce que la teneur en ADN cellulaire est inférieure à 100 pg/dose.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method for industrially producing a japanese encephalitis... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for industrially producing a japanese encephalitis..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for industrially producing a japanese encephalitis... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1465239

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.