WO1997018311A1 - Vaccin polyvalent anti-dengue - Google Patents
Vaccin polyvalent anti-dengue Download PDFInfo
- Publication number
- WO1997018311A1 WO1997018311A1 PCT/FR1996/001801 FR9601801W WO9718311A1 WO 1997018311 A1 WO1997018311 A1 WO 1997018311A1 FR 9601801 W FR9601801 W FR 9601801W WO 9718311 A1 WO9718311 A1 WO 9718311A1
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- WO
- WIPO (PCT)
- Prior art keywords
- dengue
- protein
- dengue virus
- polypeptide
- sequence
- Prior art date
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- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2710/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA dsDNA viruses
- C12N2710/00011—Details
- C12N2710/14011—Baculoviridae
- C12N2710/14111—Nucleopolyhedrovirus, e.g. autographa californica nucleopolyhedrovirus
- C12N2710/14141—Use of virus, viral particle or viral elements as a vector
- C12N2710/14143—Use of virus, viral particle or viral elements as a vector viral genome or elements thereof as genetic vector
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N2770/00—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA ssRNA viruses positive-sense
- C12N2770/00011—Details
- C12N2770/24011—Flaviviridae
- C12N2770/24111—Flavivirus, e.g. yellow fever virus, dengue, JEV
- C12N2770/24122—New viral proteins or individual genes, new structural or functional aspects of known viral proteins or genes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Definitions
- the present invention relates to a vaccine in polyvalent units against viruses of the family of Flaviviridiae and in particular against flaviviruses such as Dengue viruses, yellow fever, Japanese encephalitis, or other Flaviviridiae, or "Flavi- like "such as hepatitis C virus, and mixtures thereof (18)
- Flaviviruses are viruses of the arbovirus family (old group B arboviruses). They are vertebrate viruses generally transmitted by hematophagous arthropods (mosquitoes, ticks, sandflies), in which they multiply before transmission. so intervene an arthropod vertebrate and a reservoir Some arboviruses can affect humans and induce pathologies, the arboviruses which are found especially in tropical regions If there has been a vaccine against yellow fever since 1930, or more recently against encephalitis Japanese and tick, the other flaviviruses currently have no vaccine, this is particularly the case for Dengue
- the virus responsible for Dengue spreads concomitantly with its vector, the mosquito Aedes aegypti
- the disease is characterized by a high fever accompanied by headache, nausea and joint and muscle pain which disappears after a few days Symptoms may, however, intensify leading to hemorrhagic manifestations which are sometimes fatal when the disease is associated with hypovolemic shock, especially in children
- the agent responsible for Dengue is an RNA flavivirus from the Flavivmdae family, just like the yellow fever virus or that of Japanese encephalitis We know 4 serotypes Dengue hemorrhagic fever could be a consequence of a poorly understood immunological phenomenon, probably involving a cascade of e cytokines linked to the induction of cytotoxic cellular immunity which may result from sequential infection by several serotypes.
- a first vaccine against Dengue is currently being tested. It is a vaccine based on 4 living serotypes, attenuated by successive passages of the virus in cell culture.
- the major drawback of this type of vaccine is the possibility of attenuated viruses reversing towards virulence, by genetic reversion or recombination between genomes. It also presents a potential risk for newborns and for immunocompromised people. In addition, some children vaccinated with the tetravalent vaccine seem not to be protected against the 4 serotypes.
- the structure of the genome is the amino acid sequence of the Dengue virus, in particular that of serotype 2, has been described by
- the Dengue virus is an enveloped RNA virus of about 50 nanometers. Like the yellow fever virus, all viral proteins are coded by a segment of approximately 10 ⁇ e kilobases, the structure of which is as follows:
- the structural proteins are C (capsids), pre-matrix / matrix (preM / M) and the envelope protein (E).
- proteins are encoded by the 5 'fragment, followed by non-structural proteins (NS) encoded by the rest of the genome. Proteins are produced by a proteolytic process induced by cellular signalase and other cellular and viral proteinases.
- the envelope glycoprotein (E) is the majority surface protein.
- the structure of sterotype 1 has been described by Mason et al. (2).
- Serotype 2 has been described in (1), and is the best known of the 4 serotypes; type 3 serotype has been described by Osatomi K. al. (3) and the type 4 serotype has been described by Zhao et al., (4).
- baculoviruses are very attractive for this type of production thanks to the high level of genetic expression they can achieve and for their absence of pathogenicity for humans.
- Baculovirus has already been used for the expression of flavivirus proteins. Dengue serotype 1 (5), Dengue serotype 4 (DEN-4) (6) and serotype 2 (DEN-2) have been described. (7), (8), (9) and serotypes 2 and 3 have been described by C. Delenda et al. (10).
- sequence homology between the 4 genomes corresponding to the 4 serotypes of the virus is relatively large; by way of example, protein E of these viruses has a percentage of homology as presented in table 1 below:
- GST glutathione-S-transferase
- the present invention results from the discovery that a polypeptide or a glycopeptide consisting of a polypeptide or glycoprotein derived from a protein of a Flaviviridiae, namely the Dengue virus in which a deletion of its carboxylated end has been substituted by an amino acid residue chosen from histidine, tryptophan or cysteine exhibited a much immunogenic character more important than the same polypeptide or glycopeptide not having this residue of added amino acids, this residue having the effect of improving the antigen presentation and consequently of inducing a cellular and humoral response much more important than in the absence of this residue
- polypeptide must be understood in the broad sense, that is to say including sequences of at least 15 amino acids comprising or not glycosylated units or glycohpids, and which whether its structure, primary, secondary or tertiary
- the present invention relates more generally to polypeptides, with increased immunogenic power, derived from Flaviviridiae, characterized by the existence of an amino acid residue at their carboxy-terminal end, which amino acid residue contains from 2 to 8 amino acids selected from histidine, tryptophan or cysteine
- the amino acid residue can be homogeneous in the sense that it consists of 2 to 8 histidines, 2 to 8 tryptophanes or 2 to 8 cysteines it can also consist of a mixture of 2 or 3 of these amino acids, it may finally contain a few amino acids other than the histidme, tryptophan or cysteine as long as their number does not exceed 25% of the residue
- the present invention relates to such immunogenic polypeptides, consisting of a polypeptide derived from protein E, from protein preM, from protein NS1 or NS3 of the Dengue virus and in which for protein E the carboxyl end has been deleted from 70 to 105 amino acids to be substituted by a residue of 2 to 8 amino acids chosen from histidine, cysteine or tryptophan II can be the same for the preM protein deleted from 30 to 50 amino acids in its carboxy-terminal end for be substituted by the same type of residue For the other proteins this deletion is not necessary, and the polypeptide of the invention derived from NS1 or NS3 comprises a residue of 2 to 8 amino acids chosen from histidm, cysteine or tryptophan
- the polypeptide is derived from protein E and the deletion is approximately 100 amino acids, if in addition, the amino acid residue contains 2 to 8 histidines, this gives the peptide the property of binding to cations divalent or trivalent or equivalent
- the polypeptides or peptides of the invention can be derived from each of the 4 serotypes of Dengue, knowing that the percentage of homology between the 4 serotypes is high and is between 67% and 80% for the protein E as indicated in table 1 above
- the present invention also relates to compositions consisting of mixtures of polypeptides of the invention. These mixtures can constitute an active principle of a polyvalent vaccine, either against different serotypes of the same virus, such as Dengue, or against different viruses of the same family. Flaviviridiae or Flavi-hke and likely to affect the same populations
- the present invention also relates to a composition capable of stimulating the immunity of individuals liable to be affected by the Dengue virus, characterized in that it contains at least 3 polypeptides or glycopeptides of the invention
- a preferred composition will be that containing at least one polypeptide of the invention derived from a Dengue protein originating from each of the 4 serotypes, protein E is a good candidate it has an essential function in viral infectivity and is the intermediary between the protein and cell receptors, protein E also appears to be a key target of the protective immune response in infected hosts insofar as it induces neutralizing antibodies and an immunocellular response
- composition of the invention could be a mixture of 3 or 4 polypeptides or glycopeptides described above, part of which is derived from protein E of each of
- each peptide or glycopeptide is present in a proportion of 10 to 50% in weight relative to all the peptides of the composition, and preferably a substantially equal percentage for each of the peptides
- the immunogenic compositions of the invention may also consist of a mixture of polypeptides derived from protein E, preM, NS1 or NS3 and comprising at least 3 antigens of 3 subtypes of the Dengue virus, each being provided with the amino acid residue at the carboxy-terminal end.
- the invention relates to immunogenic compositions consisting of a mixture of polypeptides or glycopeptides derived from protein E, preM, NS1 or NS3 of the Dengue virus and comprising at least 3 antigens of 3 serotypes of this virus and more generally an antigen corresponding to each of the known serotypes, not necessarily comprising the amino acid residue at their carboxy-terminal end, but characterized in that each of the peptides, polypeptides or glycopeptides has the capacity to induce an immune reaction in humans. 'host
- composition according to the invention may also contain polypeptides, glycopeptides or proteins originating from other flaviviruses such as those of yellow fever from Japanese encephalitis, from encephalitis with ticks or hepatitis C or more generally other Flaviviridiae haemorrhagic fevers present in the tropical zones of Africa, Asia or America, as well as if necessary from other viral, bacterial or parasitic antigens , from the moment they are provided with the amino acid residue as defined above at their carboxy-terminal end
- the invention also relates to the recombinant nucleic acid sequences coding for immunogenic peptides of Flaviviridiae and in particular of the Dengue virus, deleted in 3 'from 210 to 315 nucleotides, to which has been added in 3' a sequence coding for 2 with 8 amino acids chosen from histidme, tryptophan or cysteine in the sense defined above
- the nucleic acid sequences according to the invention more particularly code for glycopeptides derived from protein E of Dengue serotype 1, 2 , 3 or 4, and the sequence added in 3 ′ preferably codes for a sequence containing 6 histidines
- the invention also relates to nucleic acid vectors suitable for use in the expression of exogenous genes in a eukaryote, these vectors carry , in addition to a nucleic acid sequence as described above, a signal sequence homologous or heterologous to that of the encoded protein, the set being dependent on a promoter capable of being activated in said euk
- Recombinant baculoviruses can be obtained by various techniques known to those skilled in the art, but a particularly advantageous technique is that of homologous recombination using shuttle vectors between E Coli and the baculovirus.
- Expression vectors as obtained by this technique, and described in more detail in the experimental part below, have been deposited at the CNCM, these are
- a recombinant baculovirus deposited at the CNCM under the number 1-1624, on October 11, 1995 and carrying a sequence coding for a peptide constitutes the E gene of the Dengue virus serotype No. 4 in which the COOH end has been deleted from 100 amino acids and substituted by 6 histidines,
- the invention also relates to compositions capable of inducing an immune, cellular or humoral response in a host capable of being infected with the Dengue virus and comprising a mixture of nucleic acids coding respectively for the polypeptides of the invention, namely those derived from the Dengue protein, such as protein E, preM, NS1 or NS3, and carrying at their carboxy-terminal end a residue of 2 to 8 amino acids chosen from histidm, cysteine or tryptophan, or more generally coding for polypeptides from other Flaviviridiae such as yellow fever, Japanese encephalitis, tick-borne encephalitis or other "Flav ⁇ -l ⁇ e" such as the hepatitis C virus
- Flaviviridiae such as yellow fever, Japanese encephalitis, tick-borne encephalitis or other "Flav ⁇ -l ⁇ e”
- hepatitis C virus it has been shown that injection into animals d a plasmid containing the sequences necessary for the expression of proteins or
- the invention also relates to polyvalent subunit vaccines against the Dengue virus in particular against the 4 serotypes of said virus and comprising an immunogenic composition as described above, with, where appropriate, a vaccination adjuvant which may in particular be an adjuvant carrying divalent or valent ions such as aluminum hydroxide or calcium phosphate or an adjuvant of Freund's adjuvant type, a derivative of muramylpeptide or an "iscom" (Immunostimulating Complex), (19) L ' immunogenic effect of the compositions of the invention may be the consequence of uptake of the polypeptides or glycoproteins of the invention by divalent or trivalent ions and the possible formation of multimers which would have an increased immunogenic power compared to the polypeptides derived from Dengue and already described in the literature (references 3, 7, 8, 9)
- the subunit vaccines of the invention may also consist of compositions capable of inducing an immunogenic reaction against other Flaviviridiae They may be intended for the prophylaxis or therapy of infection by one or more viral species simultaneously
- FIG. 1 represents the electrophoretic profile of the recombinant polypeptides E DEN1 to DEN 4 secreted in the supernatant of the infected Sf9 cells
- the radioimmunoprecipitated proteins were treated with endoglycosidase F (F) or H (H) or not treated (O)
- F endoglycosidase F
- H H
- O not treated
- the preparation of the E genes was carried out by reverse transcription / polymerase chain reaction (RT / PCR) from the RNA extracted from Aedes pseudoscutella ⁇ s AP61 mosquito cells infected with the various viruses
- RT / PCR reverse transcription / polymerase chain reaction
- the ohgonucleotide primer located 5 ′ of the gene to be amplified has a restriction site (except for Dengue 2), the ATG initiation codon FOLLOWED by nucleotides coding for the first 6 amino acids among the 15 corresponding to the signal sequence of each protein
- the ohgonucleotide primer located 3 ′ of the gene to be amplified has the sequence corresponding to 6 amino acids of protein E of the virus followed by 6 codons for the histidme, a stop codon and a restriction site
- La oligonucleotide sequence is as shown below 5 'end (positive direction)
- the fragments amplified from viral RNA extracted from Aedes pseudoscutellaris AP61 cells were then cloned into the shuttle vector pVL-poly (17).
- E ⁇ 100H ⁇ s6 corresponds to protein E of serotype 1, 2, 3, 4 deleted by 100 amino acids at its carboxyl end and to which 6 histidine residues have been added
- the genes coding for the proteins D. (1, 2,3 or 4) E ⁇ 100 His6 and their signal sequence are thus placed under the control of the polyhedrin promoter.
- the number of nucleotides between the end of the promoter and the initiation codon is 42 (Dengue 1, Dengue 3,
- Dengue 4 Dengue 4 or 50 (Dengue 2) nucleodides.
- the recombinant baculoviruses Ac. D (1, 2,3 or 4) E ⁇ 100H ⁇ s6 were obtained by homologous recombination in Spodoptera frugiperda Sf9 cells between the shuttle vectors pVL.D (1, 2,3 or 4) E ⁇ 100H ⁇ s6 and the linearized bacRovirus AcRP23lacZ at the unique site Bsu36l Les recombinant baculoviruses were selected by 3 successive cloning by the beach method. 3 ° Structural characteristics of the recombinant proteins obtained:
- Figure 1 shows the electrophoretic profile of the 4 recombinant proteins corresponding to Dengue viruses 1, 2, 3 or 4.
- the profile of proteins treated with endoglycosidase F or H indicates that they are all glycosylated, probably with only one of the two glycosylation sites because the difference in molecular weight does not exceed 4000 daltons
- Immunogens The viral proteins with a concentration of 5 ⁇ g of pure protein are mixed with 100 ⁇ g of aluminum hydroxide (Alu-gel-S, Serva) and inoculated into SWISS mice by mtrapé ⁇ tonéale o
- the viral strains of Dengue having served to immunization are titrated on AP61 cells (detection of foci by immunocytochemistry) and inoculated at the rate of 10 3 plaque-forming particles (PFU) per mouse
- the control antigen injected into the mice corresponds to a peptide containing the last three amino acids of protein E (KKG) followed of six histidines (KKG H ⁇ s6)
- the inoculum of each injection contains 100 ⁇ g of peptide mixed with Alu-gel
- mice Three-week-old mice are vaccinated by an intracourt ⁇ tonéale injection of a mixture of products corresponding to the 4 serotypes of Dengue (DE ⁇ 100H ⁇ s6 or virus) at 3 weeks, 4 weeks and 6 weeks, then bled individually one week after the last injection
- the vaccinating peptide of the negative control is identical for the 4 serotypes
- the neutralizing antibodies of these sera are titrated against each homologous virus
- the sera are also used for the protection test after passive transfer to the mouse Neutralization test:
- Antibodies vaccinated mice are titrated by seroneutralisatio ⁇ in 24-well plates with 50 PFU of homologous virus on Vero cells
- the neutralizing antibody titer corresponds to the dilution neutralizing 80% of the foci of virus detected by immunocytochemistry using antibodies anti-viral proteins and anti-mouse IgG conjugate labeled with peroxidase
- Mouse protection test 100 LD50 of virus are inoculated into groups of 5-day-old mice that received 0.05 ml miterperitoneal injection the day before of immunized mouse serum (passive transfer) Each group of passive transfer mice is subjected to a test dose by one of the 4 virus serotypes The sou ⁇ s are observed for ⁇ _. weeks and signs of paralysis or death are noted
- the neutralization titer was measured on sera taken at 7 weeks after the 3 antigen injections
- the neutralization titer corresponds to the reverse of the dilution of serum leading to an 80% reduction in focal units (UFF) of the homologous virus strain on VERO cells Viruses counterparts were used for the neutralization and challenge test
- mice were immunized with the tetravalent mixture in the 3 cases of figures
- This mixture can therefore constitute the basis of a composition or of an active principle of a vaccine in polyvalent units against Dengue
- mice Groups of 10 three-week BALB / c mice were immunized on days D1, D7 and D21 using 5 ⁇ g of recombinant antigen coupled to 100 ⁇ g of aluminum hydroxide taken as an adjuvant. The mice were bled on day D28 and tested in seroneutralization with respect to 200 Home Formative Units of each of the reference strains (Dengue 1: Hawai 1944; Dengue 2: New Guinea C, 1944;
- Recombinant proteins from serotypes D2, D3 and D4 therefore appear to be particularly advantageous and the titer of neutralizing antibody in monkey serum vaccinated with a purified recombinant envelope protein was compared with that obtained with an attenuated virus; the results are presented in table 5 below.
- the preparations were injected on day D0 (A and E) or on days D0, D28, D56 after sampling the plasma. o
- the monkeys were then subjected to a test dose on day D83 by intradermal injection of 2 ⁇ 10 5 infectious particles of dengue virus 2, strain Jamaica 1983. The plasmas were then collected on D98.
- the monkeys receive three inoculations of 100 ⁇ g of adjuvant peptides with 1 mg of aluminum adjuvant (group B) monthly.
- the sera are collected four weeks after the last inoculation and tested against their neutralizing antibody against 200 plaque-forming units (PFU) of the homologous strain of Dengue 2 Janaque.
- the titles correspond to the dilutions of serum which neutralize 50% of the plates.
- Table 5 indicates the specificity of induction of neutralizing antibodies of the recombinant protein resulting from serotype 2 of Dengue in cynomolgus monkeys, with a response at least four times more important than that obtained with the attenuated virus
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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BR9611477-0A BR9611477A (pt) | 1995-11-14 | 1996-11-14 | Polipeptìdeo ou glicopeptìdeo, composições aptas a estimular a imunidade, sequência, e vetor, de ácidos nucleicos, vetor de expressão, processo de preparação de um polipeptìdeo ou glicopeptìdeo, vacina polivalente contr5a o vìrus da dengue e composição antigênica |
AU76286/96A AU718740B2 (en) | 1995-11-14 | 1996-11-14 | Polyvalent anti-dengue vaccine |
KR1019980703604A KR19990067581A (ko) | 1995-11-14 | 1996-11-14 | 뎅그열에 대한 다가 백신 |
EP96939121A EP0861324A1 (fr) | 1995-11-14 | 1996-11-14 | Vaccin polyvalent anti-dengue |
JP9518632A JP2000500969A (ja) | 1995-11-14 | 1996-11-14 | 抗デング熱多価ワクチン |
Applications Claiming Priority (2)
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FR9513489A FR2741077B1 (fr) | 1995-11-14 | 1995-11-14 | Vaccin polyvalent anti-dengue |
FR95/13489 | 1995-11-14 |
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PCT/FR1996/001801 WO1997018311A1 (fr) | 1995-11-14 | 1996-11-14 | Vaccin polyvalent anti-dengue |
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EP (1) | EP0861324A1 (fr) |
JP (1) | JP2000500969A (fr) |
KR (1) | KR19990067581A (fr) |
CN (1) | CN1202201A (fr) |
AU (1) | AU718740B2 (fr) |
BR (1) | BR9611477A (fr) |
CA (1) | CA2235334A1 (fr) |
FR (1) | FR2741077B1 (fr) |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2767324A1 (fr) * | 1997-08-14 | 1999-02-19 | Pasteur Institut | Utilisation de proteines d'enveloppe recombinantes pour le diagnostic du virus de la dengue |
WO1999006068A3 (fr) * | 1997-07-31 | 1999-05-14 | Hawaii Biotech Group | Vaccin a enveloppe dimere recombinee contre les infections flavivirales |
US6455509B1 (en) * | 1996-06-04 | 2002-09-24 | The United States Of America As Represented By The Secretary Of The Navy | Dengue nucleic acid vaccines that induce neutralizing antibodies |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US6432411B1 (en) * | 1999-07-13 | 2002-08-13 | Hawaii Biotechnology Group | Recombinant envelope vaccine against flavivirus infection |
EP1261701B1 (fr) * | 2000-02-10 | 2009-01-21 | THE GOVERNMENT OF THE UNITED STATES OF AMERICA, as represented by THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES | CLONES D'ADNc INFECTIEUX DE PLEINE LONGUEUR DE FLAVIVIRUS A TIQUES |
SG176299A1 (en) * | 2009-06-01 | 2012-01-30 | Inviragen Inc | Compositions and methods for administration of vaccines against dengue virus |
PT3188755T (pt) * | 2014-09-01 | 2020-09-29 | Int Centre For Genetic Engineering And Biotechnology | Vacina |
TWI852899B (zh) * | 2014-09-02 | 2024-08-21 | 法商賽諾菲巴斯德公司 | 疫苗組合物 |
CN106290847A (zh) * | 2015-05-13 | 2017-01-04 | 上海凯创生物技术有限公司 | 一种登革热病毒ns1抗原乳胶法检测试剂盒 |
Citations (2)
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WO1992003161A1 (fr) * | 1990-08-27 | 1992-03-05 | The United States Of America, Represented By The Secretary, United States Department Of Commerce | Proteines d'enveloppe de flavivirus avec pouvoir immunogene accru utilisables dans l'immunisation contre les infections virales |
WO1996036702A2 (fr) * | 1995-05-12 | 1996-11-21 | Schering Corporation | Protease active soluble du virus de l'hepatite c |
-
1995
- 1995-11-14 FR FR9513489A patent/FR2741077B1/fr not_active Expired - Fee Related
-
1996
- 1996-11-14 CN CN96198317A patent/CN1202201A/zh active Pending
- 1996-11-14 AU AU76286/96A patent/AU718740B2/en not_active Ceased
- 1996-11-14 EP EP96939121A patent/EP0861324A1/fr not_active Withdrawn
- 1996-11-14 JP JP9518632A patent/JP2000500969A/ja active Pending
- 1996-11-14 KR KR1019980703604A patent/KR19990067581A/ko not_active Withdrawn
- 1996-11-14 BR BR9611477-0A patent/BR9611477A/pt not_active Application Discontinuation
- 1996-11-14 WO PCT/FR1996/001801 patent/WO1997018311A1/fr not_active Application Discontinuation
- 1996-11-14 CA CA002235334A patent/CA2235334A1/fr not_active Abandoned
Patent Citations (2)
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WO1992003161A1 (fr) * | 1990-08-27 | 1992-03-05 | The United States Of America, Represented By The Secretary, United States Department Of Commerce | Proteines d'enveloppe de flavivirus avec pouvoir immunogene accru utilisables dans l'immunisation contre les infections virales |
WO1996036702A2 (fr) * | 1995-05-12 | 1996-11-21 | Schering Corporation | Protease active soluble du virus de l'hepatite c |
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C.DELENDA ET AL.: "Analysis of C-terminally truncated Dengue 2 and Dengue 3 virus envelope glycoproteins: Processing in insect cells and immunogenic properties in mice", JOURNAL OF GENERAL VIROLOGY, vol. 75, no. 7, July 1994 (1994-07-01), pages 1569 - 1578, XP002009563 * |
N.RUGGLI ET AL.: "Baculovirus expression and affinity purification of protein E2 of classical swine fever virus-strain Alfort/187", VIRUS GENES, vol. 10, no. 2, February 1995 (1995-02-01), pages 115 - 126, XP000577157 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6455509B1 (en) * | 1996-06-04 | 2002-09-24 | The United States Of America As Represented By The Secretary Of The Navy | Dengue nucleic acid vaccines that induce neutralizing antibodies |
WO1999006068A3 (fr) * | 1997-07-31 | 1999-05-14 | Hawaii Biotech Group | Vaccin a enveloppe dimere recombinee contre les infections flavivirales |
US6749857B1 (en) | 1997-07-31 | 2004-06-15 | Hawaii Biotechnology Group, Inc. | Recombinant dimeric envelope vaccine against flaviviral infection |
FR2767324A1 (fr) * | 1997-08-14 | 1999-02-19 | Pasteur Institut | Utilisation de proteines d'enveloppe recombinantes pour le diagnostic du virus de la dengue |
WO1999009414A1 (fr) * | 1997-08-14 | 1999-02-25 | Institut Pasteur | Utilisation de proteines d'enveloppe recombinantes pour le diagnostic du virus de la dengue |
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FR2741077A1 (fr) | 1997-05-16 |
AU718740B2 (en) | 2000-04-20 |
CN1202201A (zh) | 1998-12-16 |
KR19990067581A (ko) | 1999-08-25 |
JP2000500969A (ja) | 2000-02-02 |
CA2235334A1 (fr) | 1997-05-22 |
AU7628696A (en) | 1997-06-05 |
EP0861324A1 (fr) | 1998-09-02 |
BR9611477A (pt) | 1999-12-28 |
FR2741077B1 (fr) | 1998-01-23 |
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