Immunogenic glycopeptides, screening, preparation and uses

C - Chemistry – Metallurgy – 07 – K

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07K 14/35 (2006.01) A61K 39/04 (2006.01) C07H 5/02 (2006.01) C07K 9/00 (2006.01) A61K 39/00 (2006.01)

Patent

CA 2432047

The invention concerns immunogenic glycopeptides derived from pathogenic micro-organisms, useful for vaccination and diagnosis of infections caused by said pathogenic micro-organisms (bacteria or fungi), and methods for selecting them and preparing them. Said glycopeptides are selected in the group consisting of: a1) glycopeptides essentially consisting of a glycosylated T epitope, comprising 14 to 25 amino acids, among which at least a neutral amino acid is bound to a di- or to a trisaccharide (glycoside linkage) and at least 15 % among said amino acids are proline, one of the proline being located in position -1 to -4, relative to the position of said neutral amino acid, which glycopeptides are: exhibited by a class II MHC molecule, specifically identified by T CD+4 lymphocytes induced by immunisation with the native glycopeptide from which they are derived, but are not identified by the T CD+4 lymphocytes induced by immunisation with a non-glycosylated peptide of same sequence and capable of inducing a proliferation of said T CD+4 lymphocytes by which they are identified and the secretion of cytokines by said lymphocytes and b1) glycopeptides having a sequence of 15 to 39 amino acids including the sequence of the glycopeptide as defined in a1), excluding the glycopeptide of sequence SEQ ID NO:11.

Glycopeptides immunogènes issus de microorganismes pathogènes, utiles pour la vaccination et le diagnostic d'infections dues à de tels microorganismes pathogènes (bactéries ou champignons), ainsi que leurs procédés de sélection et de préparation. Lesdits glycopeptides sont sélectionnés dans le groupe constitué par: a1) des glycopeptides essentiellement constitués par un épitope T glycosylé, comprenant de 14 à 25 acides aminés, parmi lesquels au moins un acide aminé neutre est lié à un di- ou à un trisaccharide (liaison glycosidique) et au moins 15 % d'entre lesdits acides aminés sont des proline, l'une des proline étant située en position -1 à -4, relativement à la position dudit acide aminé neutre, lesquels glycopeptides sont: présentés par une molécule de classe II du CMH, reconnus spécifiquement par des lymphocytes T CD4+ induits par immunisation avec la glycoprotéine native dont ils sont issus, mais ne sont pas reconnus par les lymphocytes T CD4+ induits par immunisation avec un peptide non glycosylé de même séquence et capables d'induire une prolifération desdits lymphocytes T CD4+ par lesquels ils sont reconnus et la sécrétion de cytokines par lesdits lymphocytes et b1) des glycopeptides qui présentent une séquence de 15 à 39 acides aminés incluant la séquence du glycopeptide tel que défini en a1), à l'exclusion du glycopeptide de séquence SEQ ID NO:11.

LandOfFree

Say what you really think

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

Rating

Immunogenic glycopeptides, screening, preparation and uses does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Immunogenic glycopeptides, screening, preparation and uses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Immunogenic glycopeptides, screening, preparation and uses will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1731404

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