EP1206278A2 - Peptidgemisch und impfstoff gegen eine chronische virale infektion - Google Patents

Peptidgemisch und impfstoff gegen eine chronische virale infektion

Info

Publication number
EP1206278A2
EP1206278A2 EP00969241A EP00969241A EP1206278A2 EP 1206278 A2 EP1206278 A2 EP 1206278A2 EP 00969241 A EP00969241 A EP 00969241A EP 00969241 A EP00969241 A EP 00969241A EP 1206278 A2 EP1206278 A2 EP 1206278A2
Authority
EP
European Patent Office
Prior art keywords
hepatitis
virus
mixture
peptide
amino acids
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP00969241A
Other languages
English (en)
French (fr)
Inventor
Catharina Hultgren
Matti SÄLLBERG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EURODIAGNOSTICA AB
Original Assignee
EURODIAGNOSTICA AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EURODIAGNOSTICA AB filed Critical EURODIAGNOSTICA AB
Publication of EP1206278A2 publication Critical patent/EP1206278A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/005Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from viruses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • A61P31/14Antivirals for RNA viruses
    • A61P31/18Antivirals for RNA viruses for HIV
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/12Antivirals
    • A61P31/20Antivirals for DNA viruses
    • A61P31/22Antivirals for DNA viruses for herpes viruses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00Medicinal preparations containing antigens or antibodies
    • A61K2039/57Medicinal preparations containing antigens or antibodies characterised by the type of response, e.g. Th1, Th2
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00Medicinal preparations containing antigens or antibodies
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N2730/00Reverse transcribing DNA viruses
    • C12N2730/00011Details
    • C12N2730/10011Hepadnaviridae
    • C12N2730/10111Orthohepadnavirus, e.g. hepatitis B virus
    • C12N2730/10122New viral proteins or individual genes, new structural or functional aspects of known viral proteins or genes

Definitions

  • Peptide mixture and vaccine against a chronic viral infection Peptide mixture and vaccine against a chronic viral infection.
  • the present invention relates to a peptide mixture and vaccine against a chronic infection caused by a virus, such as hepatitis B, hepatitis C, GB virus-C, HIV and Herpes viruses.
  • the peptide mixture is a multiple peptide T helper cell immunogen comprising overlapping peptides spanning the amino acid sequence of a viral protein of the infecting virus.
  • the peptide mixture or the vaccine is useful for the treatment of the chronic infection in a patient.
  • Background of the invention The CD4+ T helper cell response has been found to be essential in controlling the infection in several chronic viral diseases. Examples are the hepatitis B virus (HBV; Jung M.C.
  • HBV hepatitis B virus
  • HBV infection is a well documented cause for many types of liver injuries, including cirrhosis and hepatocellular carcinoma (HCC).
  • HCC hepatocellular carcinoma
  • the major routes for HBV transmission are vertical and sexual. When infected vertically, the infant has a 95% chance of developing a chronic infection whereas, when infected as an adult, the chance for chronicity is less than 5%.
  • HBV lifecycle has effectively adopted to the human host by means of vertical transmission.
  • HBV surface antigen HBV surface antigen
  • HBeAg HBV surface antigen
  • HBsAg-specific immune responses are highly effective in preventing HBV infections.
  • Vaccines of today are based on the HBsAg and are effective in preventing new HBV infections in both neonates and adults.
  • CD4+ T cells In acute and resolving chronic HBV infections activation of HBcAg- and HBeAg-specific, but not HBsAg-specific, CD4+ T cells have been found. These responses are almost never seen during non-resolving chronic HBV infections.
  • the HBcAg- and HBeAg-specific CD4+ T cell response in contrast to the HBsAg- specific response, plays a pivotal role in the clearance of HBV infections.
  • Nucleoside analogues have recently been introduced as an effective means to reduce the viral load in patients with chronic HBV infections. Almost all treated patients relapse after treatment stop with respect to both liver enzymes and the viral load. In contrast, around 30% of the patients treated with ⁇ -interferon ( ⁇ -IFN) show a permanent response to HBV. Simultaneous with the ⁇ -IFN induced clearance a HBcAg- and HBeAg-specific CD4+ T cell response can be detected.
  • nucleoside analogue therapy may be effective in transiently reducing the viral replication additional means to activate the endogenous immune response to HBV proteins are needed to increase the sustained response rate.
  • APCs professional antigen presenting cells
  • peptides derived from HBcAg have been found to be recognized by specific T cells in murine models.
  • the peptide 120-131 primes H-2 S restricted T cells
  • peptide 129-140 primes H-2 b restricted T cells
  • the peptide 85-96 primes H-2 d restricted T cells
  • the peptide 100-120 primes H-2 f restricted T cells (Milich, Immunology Today 9:380-386, 1988).
  • immunization of mice with the respective peptide primes T cells that recognize HBcAg digested by APCs.
  • these peptides represent true T cell sites.
  • No similar immunisation experiments have been performed in humans.
  • several peptides (1-25 and 61-85) derived from HBcAg have been found to be recognized by T cells from HBV infected humans (Jung et al., J Virol 69:3358-3368).
  • the determining factor for which peptides are to be presented by the host is determined by the MHC HLA genotype of the host.
  • Each MHC/HLA molecule can only bind and present one or a few peptides from each viral protein. Subsequently, a T cell vaccine based on one single peptide is limited to only one or a few HLA classes.
  • a T cell immunogen or vaccine that would activate virus-specific T cells regardless of the host HLA genotype would be universally useful and most desirable, particularly for the treatment of non-resolving chronic virus infections.
  • the present invention is based on a multiple peptide T helper cell immunogen containing a complete viral protein in the form of overlapping synthetic peptides.
  • the length of the sequences binding to different HLA class II molecules varies from 10-15 amino acids.
  • the present invention is directed to a vaccine against a vaccine against a chronic infection caused by a virus comprising a mixture of 10 to 30 amino acids (aa) long peptides each with a 5 to 25 aa overlap of the adjacent overlapping peptide spanning the amino acid sequence of a viral protein of said virus, and a vehicle.
  • the vehicle to be used is selected by the vaccine manufacturer from vehicles accepted for use in human medicaments, and suitable candidates for the selection are provided in e.g. the European or US Pharmacopoeia.
  • the invention is also directed to a peptide mixture comprising 10 to 30 amino acids
  • the virus is selected from Hepatitis B, Hepatitis C, GB virus-C, HIV and Herpes viruses
  • the viral protein is selected from proteins comprising conserved regions. For example, conserved regions are found in hepatitis B core antigen, hepatitis C core antigen and enzyme, GB virus- C enzyme and envelope protein and HIV I core antigens p24 and pi 7.
  • the virus is Hepatitis B
  • the viral protein is the hepatitis B core antigen.
  • the mixture of peptides consists of 15 to 25 amino acids (aa) long peptides each with a 10 to 15 aa overlap of the adjacent overlapping peptide spanning the amino acids 1 to
  • the mixture is composed of seventeen 20 to 23 aa long peptides spanning the amino acids 1 to 183 of the hepatitis B core antigen (HBcAg), e.g. seventeen peptides having the amino acid sequences SEQ ID NO: 1 to 17 disclosed in the Sequence listing and in Table 1.
  • the invention is further directed to a peptide mixture according to the invention for use as a medicament.
  • the invention is additionally directed to a pharmaceutical composition
  • a pharmaceutical composition comprising a peptide mixture according to the invention and a pharmaceutically acceptable carrier and/or diluent.
  • the pharmaceutically acceptable carrier and/or diluent to be used are/is selected from carriers and/or diluents known to be acceptable for human use, and suitable candidates for the selection are provided in e.g. the European or US Pharmacopoeia.
  • the invention is also directed to a method of treating a chronic infection caused by a virus in a patient comprising administering to the patient one or several immunologically effective dosages of a vaccine according to the invention or a peptide mixture according to the invention.
  • the virus is Hepatitis B It should be understood that the vaccine, the peptide mixture, or the pharmaceutical composition according to the invention may be used together with other antiviral compounds as combination therapy.
  • Table 1 corresponding to the aa sequence of HBcAg sybtype ayw (Galibert et al., 1979, Nature 281:646-648) were synthesized by standard techniques (Sallberg et al., 1991, Immunology Letters 30: 59-68) using an automated synthesizer (Syro, MyltiSynTech, Germany). Preparation of the immunogens and immunizations
  • Murine proliferation assays were performed as described previously [Sallberg, 1997 #152; Zhang, 1997 #151]. In brief, 50 ⁇ g recombinant protein was emulsified 1:1 in CFA was injected at 100 ⁇ l doses in groups of 5 -10 mice at the base of the tail. The mice were sacrificed 10 days later and draining lymphnodes were removed. Single cell suspensions were prepared in Clicks media and plated on microtiter plates at 6 x 10 cells per well. Recombinant protein was added in serial dilutions. Supernatant was taken after 24 hours for IL-2 and after 48 hours for IL-4, IL-5, IL-6 and ⁇ -IFN.
  • Cytokine concentrations were measured by EIA according to the manual (Endogen, Cambridge, MA). After 72 hours 3H- labeled thymidine (TdR; Amersham) was added, 16 hours later the labeled cells were harvested onto cellulose filters, quenched and the level of 3H-thymidine ([3H]TdR) uptake was determined by liquid scintillation using a beta-counter.
  • TdR 3H- labeled thymidine
  • mice Groups of five mice were immunized with 200 ⁇ g of the peptide mixture in adjuvant as described. Ten days later the mice were sacrificed, spleens were removed and recall cultures were set. Immunization with the peptide mixture clearly primed H-2b restricted T cells which recognize the previously described T cell site at residues 129-140 previously described (Milich, Immunology Today 9:380-386, 1988). Importantly, the peptide mixture primes T cells which recognize the peptides generated by APC processing and presentation of native like recombinant HBcAg (kindly provided by Dr Darrell Peterson, Commonwealth
  • Antigen (peptide no) IL-2 ⁇ lFN ( ⁇ cpm)
  • NKA a cell line whose proliferation is proportional to the presence of IL-2 in the culture supernatant. Thus, a sensitive indicator for the presence of IL-2.
  • ⁇ cpm the [3H] thymidine uptake determined as counts per minute (cpm) with addition of recall antigens minus the cpm with media alone.
EP00969241A 1999-08-27 2000-08-21 Peptidgemisch und impfstoff gegen eine chronische virale infektion Withdrawn EP1206278A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9903031 1999-08-27
SE9903031A SE9903031D0 (sv) 1999-08-27 1999-08-27 Peptide mixture and vaccine against a chronic viral infection
PCT/EP2000/008124 WO2001016163A2 (en) 1999-08-27 2000-08-21 Peptide mixture and vaccine against a chronic viral infection

Publications (1)

Publication Number Publication Date
EP1206278A2 true EP1206278A2 (de) 2002-05-22

Family

ID=20416772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00969241A Withdrawn EP1206278A2 (de) 1999-08-27 2000-08-21 Peptidgemisch und impfstoff gegen eine chronische virale infektion

Country Status (5)

Country Link
EP (1) EP1206278A2 (de)
JP (1) JP2003508409A (de)
AU (1) AU7903100A (de)
SE (1) SE9903031D0 (de)
WO (1) WO2001016163A2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2824326B1 (fr) * 2001-05-04 2004-03-19 Commissariat Energie Atomique Melange de peptides issus des proteines e6 et/ou e7 de papillomavirus et leurs applications
US7351413B2 (en) 2002-02-21 2008-04-01 Lorantis, Limited Stabilized HBc chimer particles as immunogens for chronic hepatitis
EP1638993A4 (de) * 2003-06-10 2007-05-09 Univ Melbourne Immunmodulierende zusammensetzungen, anwendungen davon und verfahren zu deren herstellung
GB0608368D0 (en) * 2006-04-28 2006-06-07 Isis Innovation Process for making Oligopeptides
RU2490024C2 (ru) 2006-06-28 2013-08-20 Статенс Серум Инститьют Расширение спектра т клеток для включения субдоминантных эпитопов путем вакцинации с антигенами, доставленными как белковые фрагменты или пептидные коктейли
US9481912B2 (en) 2006-09-12 2016-11-01 Longhorn Vaccines And Diagnostics, Llc Compositions and methods for detecting and identifying nucleic acid sequences in biological samples
US8097419B2 (en) 2006-09-12 2012-01-17 Longhorn Vaccines & Diagnostics Llc Compositions and method for rapid, real-time detection of influenza A virus (H1N1) swine 2009
US8080645B2 (en) 2007-10-01 2011-12-20 Longhorn Vaccines & Diagnostics Llc Biological specimen collection/transport compositions and methods
US11041215B2 (en) 2007-08-24 2021-06-22 Longhorn Vaccines And Diagnostics, Llc PCR ready compositions and methods for detecting and identifying nucleic acid sequences
WO2009029686A1 (en) * 2007-08-27 2009-03-05 Longhorn Vaccines & Diagnostics Llc Immunogenic compositions and methods
US10004799B2 (en) 2007-08-27 2018-06-26 Longhorn Vaccines And Diagnostics, Llc Composite antigenic sequences and vaccines
EP2106803A1 (de) 2008-04-04 2009-10-07 Fondazione Centro San Raffaele del Monte Tabor Verfahren zum Entwurf von sich überlappenden Peptiden und Verwendungen der Peptide zur Messung von T-Zell Antworten in HIV Patienten
CN102060929A (zh) * 2010-06-07 2011-05-18 夏书奇 T细胞免疫平衡肽
US10286050B2 (en) * 2013-12-13 2019-05-14 The United States Of America, As Represented By The Secretary, Department Of Health And Human Services Multi-epitope TARP peptide vaccine and uses thereof
WO2020247858A1 (en) * 2019-06-07 2020-12-10 Oregon Health & Science University Hepatitis b virus-specific t cell responses

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Publication number Priority date Publication date Assignee Title
GB9201139D0 (en) * 1992-01-20 1992-03-11 Connaught Lab Synthetic peptides for a rubella vaccine
NZ299048A (en) * 1992-03-06 1998-09-24 Innogenetics Sa Nv Modified peptides corresponding to immunologically useful epitopes in hiv, hcv and htlv and their use especially when biotinylated
WO1996022067A2 (en) * 1994-12-27 1996-07-25 United Biomedical, Inc. Peptide ratchet libraries for ctl-inducing vaccines and therapeutics

Non-Patent Citations (1)

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Title
See references of WO0116163A2 *

Also Published As

Publication number Publication date
WO2001016163A2 (en) 2001-03-08
SE9903031D0 (sv) 1999-08-27
JP2003508409A (ja) 2003-03-04
WO2001016163A3 (en) 2001-09-07
AU7903100A (en) 2001-03-26

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