Patents by Inventor Geert Maertens
Geert Maertens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20070128721Abstract: The present invention relates to a method for purifying recombinant HCV single or specific oligomeric envelope proteins selected from the group consisting of E1 and/or E1/E2 characterized in that upon lysing the transformed host cells to isolate the recombinantly expressed protein a disulphide bond cleavage or reduction step is carried out with a disulphide bond cleavage agent. The present invention also relates to a composition isolated by such a method. The present invention also relates to the diagnostic and therapeutic application of these compositions. Furthermore, the invention relates to the use of HCV E1 protein and peptides for prognosing and monitoring the clinical effectiveness and/or clinical outcome of HCV treatment.Type: ApplicationFiled: January 18, 2007Publication date: June 7, 2007Applicant: INNOGENETICS N.V.Inventors: Geert Maertens, Fons Bosman, Guy De Martynoff, Marie-Ange Buyse
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Patent number: 7195765Abstract: The present invention relates to a polynucleic acid composition comprising or consisting of at least one polynucleic acid containing 8 or more contiguous nucleotides corresponding to a nucleotide sequence from the region spanning positions 417 to 957 of the Core/E1 region of HCV type 3; and/or the region spanning positions 4664 to 4730 of the NS3 region of HCV type 3; and/or the region spanning positions 4892 to 5292 of the NS3/4 region of HCV type 3; and/or the region spanning positions 8 023 to 8 235 of the NS5 region of the BR36 subgroup of HCV type 3a; and/or the coding region of HCV type 4a starting at nucleotide 379 in the core region; and/or the coding region of HCV type 4; and/or the coding region of HCV type 5, with said nucleotide numbering being with respect to the numbering of HCV nucleic acids as shown in Table 1, and with said polynucleic acids containing at least one nucleotide difference with known HCV type 1, and/or HCV type 2 genomes in the above-indicated regions, or the complement thereof.Type: GrantFiled: July 6, 2001Date of Patent: March 27, 2007Assignee: N.V. Innogenetics S.A.Inventors: Geert Maertens, Lieven Stuyver
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Publication number: 20070048281Abstract: The invention relates to therapy of HCV infection, and more particularly to combination therapy of HCV infection. The combination therapy comprises combination of a HCV E1 vaccine and an antiviral agent. In one aspect, the antiviral agent may be an interferon.Type: ApplicationFiled: May 3, 2006Publication date: March 1, 2007Applicant: INNOGENETICS N.V.Inventors: Geert Maertens, Erik Depla, Christina Stichele, Frank Hulstaert
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Patent number: 7157226Abstract: The present invention relates to a polynucleic acid composition comprising or consisting of at least one polynucleic acid containing 8 or more contiguous nucleotides corresponding to a nucleotide sequence from the region spanning positions 417 to 957 of the Core/E1 region of HCV type 3; and/or the region spanning positions 4664 to 4730 of the NS3 region of HCV type 3; and/or the region spanning positions 4892 to 5292 of the NS3/4 region of HCV type 3; and/or the region spanning positions 8023 to 8235 of the NS5 region of the BR36 subgroup of HCV type 3a; and or the coding region of HCV type 4a starting at nucleotide 379 in the core region; and/or the coding region of HCV type 4; and/or the coding region of HCV type 5, with said nucleotide numbering being with respect to the numbering of HCV nucleic acids as shown in Table 1, and with said polynucleic acids containing at least one nucleotide difference with known HCV type 1, and/or HCV type 2 genomes in the above-indicated regions, or the complement thereof.Type: GrantFiled: April 27, 1994Date of Patent: January 2, 2007Assignee: Innogenetics S.A.Inventors: Geert Maertens, Lieven Stuyver
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Publication number: 20060275323Abstract: The present invention is based on the finding that the envelope proteins of HCV induce a beneficial immune response in chronically HCV-infected chimpanzees. The immunization can preferentially be carried out using HCV envelope proteins in the form of particles which are produced in a detergent-assisted manner. The envelope proteins when presented as such to chronic HCV carriers are highly immunogenic and stimulate both the cellular and humoral immune response.Type: ApplicationFiled: June 2, 2006Publication date: December 7, 2006Applicant: INNOGENETICS N.V.Inventors: Erik Depla, Geert Maertens, Alfons Bosman, Frans Van Wijnendaele
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Publication number: 20060263854Abstract: The present invention relates to a solid phase immunoassay comprising on said solid phase an antigen in the presence of a reducing agent.Type: ApplicationFiled: August 2, 2006Publication date: November 23, 2006Applicant: N.V. INNOGENETICSInventors: Geert Maertens, Joost Louwagie, Alfons Bosman, Erwin Sablon, Maan Zrein
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Patent number: 7129337Abstract: The present invention relates to new genomic nucleotide sequences and amino acid sequences corresponding to the coding region of these genomes. The invention relates to new HCV types and subtypes sequences which are different from the known HCV types and subtypes sequences. More particularly, the present invention relates to new HCV type 7 sequences, new HCV type 9 sequences, new HCV type 10 and new HCV type 11 sequences. Also, the present invention relates to new HCV type 1 sequences of subtypes 1d, 1e, 1f and 1g; new HCV type 2 sequences of subtypes 2e, 2f, 2g, 2h, 2i, 2k and 2l; new HCV type 3 sequences of subtype 3g, new HCV type 4 sequences of subtypes 4k, 4l and 4m; a process for preparing them, and their use for diagnosis, prophylaxis and therapy. More particularly, the present invention provides new type-specific sequences of the Core, the E1 and the NS5 regions of new HCV types 7, 9, 10 and 11, as well as of new variants (subtypes) of HCV types 1, 2, 3 and 4.Type: GrantFiled: October 23, 1995Date of Patent: October 31, 2006Assignee: Innogenetics N.V.Inventors: Geert Maertens, Lieven Stuyver
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Patent number: 7122306Abstract: The present application provides polynucleic acid sequences of 8 or more contiguous nucleotides selected from an HCV subtype 3c genomic sequence selected from the region spanning positions 1 to 957 of the Core of Core/E1 region of HCV subtype 3c, wherein said polynucleic acid sequence is capable of hybridizing to HCV type 3c, but not another type or subtype of HCV; or the complement of the polynucleic acid, wherein the polynucleic acid contains at least one genotype-specific nucleotide. Methods and means of using and making the described sequences are also provided.Type: GrantFiled: June 5, 2001Date of Patent: October 17, 2006Assignee: N.V. Innogenetics S.A.Inventors: Geert Maertens, Lieven Stuyver
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Patent number: 7108855Abstract: The present invention relates to a method for purifying recombinant HCV single or specific oligomeric envelope proteins selected from the group consisting of E1 and/or E2 and/or E1/E2, characterized in that upon lysing the transformed host cells to isolate the recombinantly expressed protein a disulphide bond cleavage or reduction step is carried out with a disulphide bond cleavage agent. The present invention also relates to a composition isolated by such a method. The present invention also relates to the diagnostic and therapeutic application of these compositions.Type: GrantFiled: November 29, 2001Date of Patent: September 19, 2006Assignee: Innogenetics N.V.Inventors: Geert Maertens, Fons Bosman, Erik Depla
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Patent number: 7101561Abstract: The present invention relates to a method for purifying recombinant HCV single or specific oligomeric envelope proteins selected from the group consisting of E1 and/or E2 and/or E1/E2, characterized in that upon lysing the transformed host cells to isolate the recombinantly expressed protein a disulphide bond cleavage or reduction step is carried out with a disulphide bond cleavage agent. The present invention also relates to a composition isolated by such a method. The present invention also relates to the diagnostic and therapeutic application of these compositions. Furthermore, the invention relates to the use of HCV E1 protein and peptides for prognosing and monitoring the clinical effectiveness and/or clinical outcome of HCV treatment.Type: GrantFiled: November 29, 2001Date of Patent: September 5, 2006Assignee: Innogenetics N.V.Inventors: Geert Maertens, Erik Depla, Fons Bosman
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Publication number: 20060093617Abstract: The present invention is directed to peptides, and nucleic acids encoding them, derived from the Hepatitis C Virus (HCV). The peptides are those which elicit a CTL and/or HTL response in a host. The invention is also directed to compositions and vaccines for prevention and treatment of HCV infection and diagnostic methods for detection of HCV exposure in patients.Type: ApplicationFiled: May 31, 2005Publication date: May 4, 2006Applicants: Innogenetics, N.V., EPIMMUNE INC.Inventors: Marie-Ange Buyse, Geert Maertens, Erik Depla, Ignace Lasters, Johan Desmet, Denise Baker, Robert Chesnut, Mark Newman, Alessandro Sette, John Sidney, Scott Southwood
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Publication number: 20060078932Abstract: Multimer peptides (e.g. 30- to 45-mer peptides) derived from hepatitis C virus envelope proteins reacting with the majority of anti-HCV antibodies present in patient sera are described. The usage of the latter peptides to diagnose, and to vaccinate against, an infection with hepatitis C virus is also disclosed.Type: ApplicationFiled: October 13, 2005Publication date: April 13, 2006Applicant: N.V. INNOGENETICS S.A.Inventors: Geert Maertens, Erik Depla
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Patent number: 7026457Abstract: The present invention relates to a method for purifying recombinant HCV single or specific oligomeric envelope proteins selected from the group consisting of E1 and/or E1/E2 characterized in that upon lysing the transformed host cells to isolate the recombinantly expressed protein a disulphide bond cleavage or reduction step is carried out with a disulphide bond cleavage agent. The present invention also relates to a composition isolated by such a method. The present invention also relates to the diagnostic and therapeutic application of these compositions. Furthermore, the invention relates to the use of HCV E1 protein and peptides for prognosing and monitoring the clinical effectiveness and/or clinical outcome of HCV treatment.Type: GrantFiled: October 10, 2001Date of Patent: April 11, 2006Assignee: Innogenetics N.V.Inventors: Geert Maertens, Fons Bosman, Guy De Martynoff, Marie Ange Buyse
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Patent number: 6974864Abstract: The present invention relates to new genomic nucleotide sequences and amino acid sequences corresponding to the coding region of these genomes. The invention relates to new HCV types and subtypes sequences which are different from the known HCV types and subtypes. More particularly, the present invention relates to new HCV type 7 sequences, new HCV type 9 sequences, new HCV type 10 and new HCV type 11 sequences. Also, the present invention relates to new HCV type 1 sequences of subtypes 1d, 1e, 1f and 1g; new HCV type 2 sequences of subtypes 2e, 2f, 2g, 2h, 2I, 2k and 2l; new HCV type 3 sequences of subtype 3g, new HCV type 4 sequences of subtypes 4k, 4l and 4m; a process for preparing them, and their use for diagnosis, prophylaxis and therapy. More particularly, the present invention provides new type-specific sequences of the Core, the E1 and the NS5 regions of new HCV types 7, 9, 10 and 11, as well as of new variants (subtypes) of HCV types 1, 2, 3 and 4.Type: GrantFiled: May 9, 2001Date of Patent: December 13, 2005Assignee: Innogenetics N.V.Inventors: Geert Maertens, Lieven Stuyver
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Publication number: 20050175990Abstract: The present invention relates to a method for detection and/or genetic analysis of HBV in a biological sample, comprising hybridizing the polynucleic acids of the sample with a combination of at least two nucleotide probes, with said combination hybridizing specifically to a mutant target sequence chosen from the HBV RT pol gene region and/or to a mutant target sequence chosen from the HBV preCore region and/or to a mutant target sequence chosen from the HBsAg region of HBV and/or to a HBV genotype-specific target sequence, with said target sequences being chosen from FIG.Type: ApplicationFiled: June 27, 2003Publication date: August 11, 2005Inventors: Lieven Stuyver, Rudi Rossau, Geert Maertens
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Patent number: 6890737Abstract: The present invention relates to a method for purifying recombinant HCV single or specific oligomeric envelope proteins selected from the group consisting of E1 and/or E1/E2, characterized in that upon lysing the transformed host cells to isolate the recombinantly expressed protein a disulphide bond cleavage or reduction step is carried out with a disulphide bond cleavage agent. The present invention also relates to a composition isolated by such a method. The present invention also relates to the diagnostic and therapeutic application of these compositions. Furthermore, the invention relates to the use of HCV E1 protein and peptides for prognosing and monitoring the clinical effectiveness and/or clinical outcome of HCV treatment.Type: GrantFiled: September 12, 1997Date of Patent: May 10, 2005Assignee: Innogenetics N.V.Inventors: Geert Maertens, Fons Bosman, Guy De Martynoff, Marie-Ange Buyse
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Patent number: 6891026Abstract: The invention relates to a process for genotyping any HCV isolate present in a biological sample, previously identified as being HCV positive, and for classifying said isolate according to the percentage of homology with other HCV isolates, comprising the steps of: contacting said sample in which the ribonucleotides or deoxyribonucleotides have been made accessible, if need be, under suitable denaturation, with at least one probe from about 10 to about 40 nucleotides, with said probe being liable to hybridize to a region being in the domain extending from nucleotide at position ?291 to nucleotide at position ?66 of the 5? untranslated region of one of the HCV isolates represented by their cDNA sequences, with said numbering of position beginning with the first ATG codon of the open reading frame encoding the HCV polyprotein, or with said probe being complementary to the above-defined probes, detecting the complexes possibly formed between said probe and the nucleotide sequence of the HCV isolate to be idenType: GrantFiled: July 6, 2001Date of Patent: May 10, 2005Assignee: Innogenetics N.V.Inventors: Geert Maertens, Lieven Stuyver, Rudi Rossau, Hugo Van Heuverswyn
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Patent number: 6887985Abstract: The invention relates to a process for genotyping any HCV isolate present in a biological sample, previously identified as being HCV positive, and for classifying said isolate according to the percentage of homology with other HCV isolates, comprising the steps of: contacting said sample in which the ribonucleotides or deoxyribonucleotides have been made accessible, if need be, under suitable denaturation, with at least one probe from about 10 to about 40 nucleotides, with said probe being liable to hybridize to a region being in the domain extending from nucleotide at position ?291 to nucleotide at position ?66 of the 5? untranslated region of one of the HCV isolates represented by their cDNA sequences, with said numbering of position beginning with the first ATG codon of the open reading frame encoding the HCV polyprotein, or with said probe being complementary to the above-defined probes, detecting the complexes possibly formed between said probe and the nucleotide sequence of the HCV isolate to be idenType: GrantFiled: July 6, 2001Date of Patent: May 3, 2005Assignee: Innogenetics N.V.Inventors: Geert Maertens, Lieven Stuyver, Rudi Rossau, Hugo Van Heuverswyn
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Patent number: 6872520Abstract: Peptide sequences are provided which are capable of mimicking proteins encoded by HCV for use as reagents for screening of blood and blood products for prior exposure to HCV. The peptides are at least 5 amino acids long and can be used in various specific assays for the detection of antibodies to HCV, for the detection of HCV antigens, or as immunogens.Type: GrantFiled: January 15, 2002Date of Patent: March 29, 2005Assignee: Innogenetics N.V.Inventors: Robert J. DeLeys, Dirk Pollet, Geert Maertens, Hugo Van Heuverswijn
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Publication number: 20050053617Abstract: The present invention relates to peptides or polypeptides comprising an HCV NS3 protein or a part thereof or a derivative of said peptide or polypeptide, HCV NS3 protein or part thereof wherein at least one cysteine is irreversibly modified. These modified HCV NS3 proteins have advantageous properties both for diagnostic and therapeutic/prophylactic applications.Type: ApplicationFiled: May 28, 2004Publication date: March 10, 2005Inventors: Erik Depla, Geert Maertens, Fons Bosman