EP2313427A2 - Vaccins comprenant des peptides d'hémagglutinine filamenteuse recombinants de pasteurella multocida - Google Patents

Vaccins comprenant des peptides d'hémagglutinine filamenteuse recombinants de pasteurella multocida

Info

Publication number
EP2313427A2
EP2313427A2 EP09774439A EP09774439A EP2313427A2 EP 2313427 A2 EP2313427 A2 EP 2313427A2 EP 09774439 A EP09774439 A EP 09774439A EP 09774439 A EP09774439 A EP 09774439A EP 2313427 A2 EP2313427 A2 EP 2313427A2
Authority
EP
European Patent Office
Prior art keywords
seq
multocida
peptides
peptide
fhab2
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Withdrawn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
EP09774439A
Other languages
German (de)
English (en)
Inventor
Robert E. Briggs
Fred M. Tatum
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.)
Biotechnology Research and Development Corp
Department of Agriculture
Original Assignee
Biotechnology Research and Development Corp
Department of Agriculture
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 Biotechnology Research and Development Corp, Department of Agriculture filed Critical Biotechnology Research and Development Corp
Publication of EP2313427A2 publication Critical patent/EP2313427A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00—Medicinal preparations containing antigens or antibodies
    • A61K39/02—Bacterial antigens
    • A61K39/102—Pasteurellales, e.g. Actinobacillus, Pasteurella; Haemophilus
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
    • A61P31/04—Antibacterial agents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P37/00—Drugs for immunological or allergic disorders
    • A61P37/02—Immunomodulators
    • A61P37/04—Immunostimulants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00—Medicinal preparations containing antigens or antibodies
    • A61K2039/55—Medicinal preparations containing antigens or antibodies characterised by the host/recipient, e.g. newborn with maternal antibodies
    • A61K2039/552—Veterinary vaccine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00—Medicinal preparations containing antigens or antibodies
    • A61K2039/555—Medicinal preparations containing antigens or antibodies characterised by a specific combination antigen/adjuvant
    • A61K2039/55511—Organic adjuvants
    • A61K2039/55566—Emulsions, e.g. Freund's adjuvant, MF59

Definitions

  • VACCINES COMPRISING PASTEURELLA MULTOCIDA RECOMBINANT FILAMENTOUS HEMAGGLUTININ PEPTIDES
  • the invention relates to protection against different P. multocida capsular and serotypes through immunization with recombinant FHAB2 peptides.
  • Pasteurella multocida is associated with a variety of diseases. As a commensal in cats and dogs P. multocida causes zoonotic abcesses arising from bites or scratches. P. multocida also causes shipping fever in cattle. Pasteurella multocida also is the causative agent of fowl cholera (FC), a highly contagious disease that affects all species of birds. The turkey industry is the most severely affected sector of commercial importance. Predominately, P. multocida serotypes A: l, A:3, and A:3,4 are responsible for most fowl cholera outbreaks in poultry flocks. It is thought that P. multocida principally enters host tissues through mucus membranes of the pharynx or upper air passage resulting in septicemia accompanied with high morbidity and mortality.
  • FIGS. 1-C FIGS. 1-C.
  • FIG. IA schematic representation of the fhaB2 gene of P. multocida strain P-1059. The arrow indicates the length and direction of the gene.
  • FIG. IB representation of the 311 kDa protein encoded by fhaB2.
  • FIG. 1C fhaB2 fragments cloned into pGEMEX ® -l to generate rFHA peptides 1, 2, and 3 respectively.
  • FIGS. 2A-B Expression and purification of recombinant FHAB (r-FHAB) peptides in E. coli.
  • FIG. 2A Coomassie blue-stained SDS-PAGE of whole cells lysates expressing the recombinant FHAB2 peptides.
  • FIG. 2B purified samples of r-FHAB2 peptides.
  • FIGS. 3A-B Western blot analysis of pooled sera from vaccinated turkeys, after immunization and prior to challenge, reacting to wild-type (wt) or filamentous hemagglutinin mutant ( ⁇ fhaB2) whole cell lysates.
  • FIG. 3B Western blot analysis using the same pooled sera as in FIG. 2A reacting to supernatants of wild-type (wt) or filamentous hemagglutinin mutant ( ⁇ fhaB2) cultures.
  • FIGS. 4A-B Western blot analysis of pre-immune pooled turkey sera reacting to identical loadings of wild-type (wt) or filamentous hemagglutinin ( ⁇ fhaB2) mutant whole cell lysates as shown in FIG. 2A.
  • FIG. 4B Western blot analysis using pre-immune pooled turkey sera reacting to identical loadings of supernatants of wild-type (wt) or filamentous hemagglutinin mutant ( ⁇ fhaB2) cultures as shown in FIG. 2B.
  • Embodiments of the invention provide peptides derived from P. multocida filamentous hemagglutinin (fhab2) that can be used in vaccine compositions to provide broad efficacy against diseases caused by P. multocida.
  • fhab2 proteins of a bovine (A:3; NCBI AAK61595.1; SEQ ID NO: 1) and an avian (F:3; NP_244996; SEQ ID NO:2) strain of P. multocida are highly conserved (>99% identity).
  • vaccines comprising one or more P. multocida FHAB2 peptides of the invention can be used to achieve broad cross protection against different P. multocida capsular and serotypes.
  • Vaccines of the invention can be administered to animals (including livestock, ungulates, and companion animals) and birds (including poultry) to provide protective immunity against wild-type P. multocida, e.g., to prevent or reduce the severity of diseases such as hemorrhagic septicemia or pneumonia in livestock, ungulates, and companion animals and to prevent or reduce the severity of fowl cholera in birds, especially poultry, respectively.
  • Peptides of the invention are derived from approximately the first N-terminal 1050 amino acids of P. multocida filamentous hemagglutinin.
  • Preferred peptides include “peptide 1" (SEQ ID NO: 3), “peptide 2" (SEQ ID NO:4), and “peptide 3" (SEQ ID NO:5).
  • peptides consist of SEQ ID NO:3, SEQ ID NO:4, or SEQ ID NO:5.
  • peptides can include additional amino acids at either the N- or C-terminus.
  • the peptides are about 330-400 amino acids in length.
  • the invention also provides nucleic acid molecules which encode peptides of the invention.
  • Nucleotide sequences which encode peptides 1, 2, and 3 are provided in SEQ ID NOS:6, 7, and 8, respectively, although any nucleotide sequences which encode the peptides can be used.
  • a nucleic acid molecule of the invention is an expression plasmid comprising elements which permit expression of the encoded peptide. Any suitable expression system can be used to produce peptides of the invention. See the specific Examples, below.
  • Vaccine compositions of the invention comprise one or more peptides of the invention and a pharmaceutically acceptable vehicle.
  • Vaccines of the invention can comprise any combination of peptides of the invention, including peptides that comprise SEQ ID NO:3 (peptide 1), peptides that comprise SEQ ID NO:4 (peptide 2), peptides that comprise SEQ ID N0:5 (peptide 3), peptides that consist of SEQ ID N0:3 (peptide 1), peptides that consist of SEQ ID NO:4 (peptide 2), peptides that consist of SEQ ID NO:5 (peptide 3), or any combinations thereof.
  • a vaccine comprises at least one of each of peptides 1, 2, and 3.
  • a vaccine comprises two or more of peptides 1, 2, and 3 (e.g., peptides 1 and 2; peptides 2 and 3; peptides 1 and 3; or peptides 1, 2, and 3).
  • a vaccine of the invention comprise a single type of peptide (e.g., peptide 1, peptide 2, or peptide 3).
  • Vaccines of the invention also can comprise full-length FHAB2.
  • an adjuvant such as TITERMAX r® Gold, which contains block copolymer CRL-8300 (US 2006/0134221), squalene, and a sorbitan monooleate, can be added to a vaccine.
  • surfactants e.g., hexadecylamine, octadecylanine, lysolecithin, di-methyldioctadecylammonium bromide, N,N-dioctadecyl-n'-N-bis(2-hydroxyethyl-propane diamine), methoxyhexadecylglycerol, and pluronic polyols
  • polyanions e.g., pyran, dextran sulfate, poly IC, polyacrylicacid, carbopol
  • peptides e.g., muramyl dipeptide, dimethylglycine, tuftsin
  • oil emulsions alum, and mixtures thereof.
  • Vaccines comprising one or more peptides of the invention can be given alone or as a component of a polyvalent vaccine, i.e., in combination with other vaccines such as the Mannheimia haemolytica lktA in-frame mutant vaccine. Insertion of the protective FHAB2 peptide(s) into the lktA deletion site Mannheimia haemolytica would create a bivalent cattle vaccine expressing a protective chimeric peptide.
  • Vaccines of the invention comprise a pharmaceutically acceptable vehicle, such as saline, Earle's balanced salt solution (EBSS) without phenol red, Tris buffer, and the like.
  • EBSS Earle's balanced salt solution
  • Vaccines comprising peptides of the invention also can comprise one or more pharmaceutically acceptable carriers.
  • Such carriers are well known to those in the art and include, but are not limited to, large, slowly metabolized macromolecules, such as proteins, polysaccharides, polylactic acids, polyglycolic acids, polymeric amino acids, amino acid copolymers, and inactive virus particles.
  • Pharmaceutically acceptable salts can also be used in the vaccine, for example, mineral salts such as hydrochlorides, hydrobromides, phosphates, or sulfates, as well as the salts of organic acids such as acetates, proprionates, malonates, or benzoates.
  • Vaccines also can contain liquids, such as water, saline, glycerol, and ethanol, as well as substances such as wetting agents, emulsifying agents, or pH buffering agents.
  • Vaccines of the invention can be used to confer immunity against Pasteurella multocida to both animals and birds.
  • Animals include livestock (domestic animals raised for food, milk, or fiber such as hogs, sheep, cattle, donkeys, lambs, sheep, and horses) and companion animals (e.g., dogs, cats).
  • "Ungulates” include, but are not limited to, cattle (bovine animals), water buffalo, bison, sheep, swine, deer, elephants, and yaks. Each of these includes both adult and developing forms (e.g., calves, piglets, lambs, etc.).
  • Vaccines of the invention can be administered either to adults or developing animals, preferably livestock, ungulates, or companion animals.
  • a convenient method of delivering a bacterium of the invention to animals is by oral administration (e.g., in the feed or drinking water or in bait).
  • animals such as livestock, ungulates, or companion animals
  • oral administration e.g., in the feed or drinking water or in bait.
  • large animals e.g., livestock/ungulates such as cattle
  • doses can be adjusted for smaller livestock/ungulates such as sheep (e.g., about 100 ⁇ g).
  • Analogous dosing regimens can be readily deduced for companion animals.
  • oral route is preferred for ease of delivery, other routes for vaccination can also be used. These include without limitation, subcutaneous, intramuscular, intravenous, intradermal, intranasal, intrabronchial, etc.
  • “Birds” include wild (e.g., game fowl) and domesticated (e.g., poultry or pet) birds and includes both adult and developing forms (e.g., hatchlings, chicks, poults, etc.).
  • "Poultry” or “poultry birds” include all birds kept, harvested, or domesticated for meat or eggs, including chicken, turkey, ostrich, game hen, squab, guinea fowl, pheasant, quail, duck, goose, and emu.
  • Vaccines of the invention can be administered to a bird by any known or standard technique, including mucosal or intramuscular injection.
  • techniques such as in ovo vaccination, spray vaccination, and subcutaneous vaccination can be used.
  • vaccines can be administered using techniques such as scarification, spray vaccination, eye drop vaccination, in-water vaccination, in-feed vaccination, wing web vaccination, subcutaneous vaccination, and intramuscular vaccination.
  • Effective doses depend on the size of the bird. Doses range and can vary, for example, from about 10-100 ⁇ g of purified protein.
  • Dosage regimens include 1 or 2 injections of recombinant protein.
  • Vaccines can conveniently be provided in kits, which also can comprise appropriate labeling and instructions for administering a vaccine to an animal (e.g., cattle, sheep, lambs, donkeys, swine, cats, dogs, horses) or a bird (e.g., poultry, particularly turkeys).
  • an animal e.g., cattle, sheep, lambs, donkeys, swine, cats, dogs, horses
  • a bird e.g., poultry, particularly turkeys.
  • P. multocida strain P- 1059 (A:3) was obtained from the collection of Drs. R. Rimler, R.E. Briggs, and F. M. Tatum maintained at the National Animal Disease Center, Ames, IA, USA.
  • Wild type P. multocida P-1059, and a P. multocida P-1059 fhaB2 (filamentous hemagglutinin) mutant used in this study were cultured on dextrose starch agar containing 5% sheep blood and cells were harvested into Columbia broth containing 10 glycerol to produce stock cultures stored at -80 0 C.
  • the wild-type P-1059 challenge strain was passed through a turkey that developed peracute fowl cholera following intravenous challenge.
  • Pure P. multocida culture was obtained from liver of the infected bird and liver tissue was stored at -80 0C.
  • the challenge inoculum was generated by first swabbing the stored liver sample onto a blood agar plate and incubating it overnight.
  • the pure P. multocida growth was amplified in Columbia broth to an optical density of 0.4 at 600 nm and diluted in Earle's balanced salt solution without phenol red (EBSS, Gibco) to obtain the intended challenge dose.
  • the exact CFU in the challenge solution was determined by colony plate counts of serial dilutions.
  • the fhaB2 specific primer pairs were designed by sequence analysis of the fhaB2 gene obtained from P. multocida strain P-1059.
  • the fhaB2 fragments were amplified using whole cells of strain P- 1059 as template. Primer pairs are listed in Table 1. Primers were added to EASYSTARTTM PCR mix in a tube protocol of Molecular BioProducts (San Diego, CA). Reaction conditions were 30 cycles, with 30 seconds at 95 0 C, 30 seconds at 58 0 C, and 90 seconds at 72 0C per cycle. The reaction products were purified with QIA QUICK ® spin columns (Qiagen Inc. Valencia, CA) then they were subjected to digestion by EcoRl and HinDIII. Each fragment was ligated into the like digested pGEMEX ® -l (Promega Corp. Madison, WI) and transformed into E. coli DE-3 cells.
  • BL21 (DE3) cells were transformed with each of the fhaB2 fragments inserted into pGEMEX ® -l and spread onto Columbia blood agar media supplemented with 50 ⁇ g/ml ampicillin. Plates were incubated overnight at 37 0 C. Individual colonies were transferred to 40 ml LB-medium, supplemented with 50 ⁇ g/ml ampicillin and either with or without 0.5 mM IPTG when the cell density reached an A 6 oo of 0.7.
  • the cells were harvested by centrifugation and recombinant protein was extracted using a mild, nonionic detergent containing 20 mM Tris HCl, pH 7.5 (B-PER ® Bacterial Protein Extraction Reagent; Pierce) according to the manufacturer's directions for midi-scale protein extractions.
  • B-PER ® Bacterial Protein Extraction Reagent Bacterial Protein Extraction Reagent; Pierce
  • the pGEMEX ® -l plasmid expressed the recombinant FHAB2 peptides as chimeric proteins with T7 gene 10. These recombinant products were contained primarily in inclusion bodies. Further purification of the peptides within the inclusion bodies was accomplished using B-PER ® Bacterial Protein Extraction Reagent according to the manufacturer's directions.
  • Vaccine was prepared by diluting the recombinant antigens to 100 mg/ml in saline and then mixing them with adjuvant containing TITERMAX ® Gold (CyRx Corp., Norcross, GA) 50:50 (volume:volume) according to the manufacturer's directions.
  • Wild type P. multocida P- 1059 and a P. multocida P- 1059 fhaB2 mutant were grown in 25 ml Columbia broth (Difco) to midlog phase and treated with 250 Units of hyaluronidase type 1-S (Sigma Chem. Co., St. Louis, MO) for 10 minutes to remove capsule and thus aid cell harvesting.
  • the cells were pelleted by centrifugation at 5000 x g for fifteen minutes and growth media was concentrated ten fold using Centriprep 30 concentrators (Amicon, Inc. Beverly, MA).
  • Filters were hybridized overnight at 40 0 C with pooled turkey sera diluted 1:200 in Tris buffered saline (TBS) blocking buffer containing 5% Carnation instant milk. After washing 3X in TBS for 10 minutes each wash, filters were hybridized for 2 hours at 25 0 C with alkaline phosphatase-conjugated rabbit anti-chicken IgG (Sigma St. Louis, MO) diluted 1 :2000 in TBS containing 5% Carnation instant milk.
  • TBS Tris buffered saline
  • the filters were washed as before and developed in alkaline phosphatase developing buffer (100 mM Tris, pH 9.5; 5 mM MgC ⁇ ) containing nitro blue tetrazolium chloride (NBT) and 5- bromo-4-chloro-3'-indolyl phosphate (BCIP).
  • alkaline phosphatase developing buffer 100 mM Tris, pH 9.5; 5 mM MgC ⁇
  • NBT nitro blue tetrazolium chloride
  • BCIP 5- bromo-4-chloro-3'-indolyl phosphate
  • KMT17T SEQ ID NO:15
  • KMT1SP6 SEQ ID NO: 16
  • Vaccine trials conducted in this study are summarized in Table 2. The survival rates and the mean times to death were compared by Chi-squared tests.
  • FIG. 1 Three gene fragments encompassing the 5' 3,250 bps of fhaB2 were cloned and expressed as recombinant peptides for use as immunogens against P. multocida (FIG. 1).
  • the fhaB2 gene fragments were amplified from P. multocida strain P-1059 (serotype A:3) by PCR using the primers indicated in Table 1.
  • Each fragment was digested with EcoRl and HinDIII prior to insertion into the similarly treated expression vector, pGEMEX ® -l (Promega).
  • the pGEMEX ® -l constructs containing the fhaB2 gene fragments were expressed by E.
  • liver samples from the vaccinated survivors were culture positive and only one tracheal sample from this group was positive for P. multocida as determined by culturing and PCR analysis.
  • High levels of P. multocida were recovered from liver and trachea samples taken from the three vaccinates that died following challenge. The average time till death for the vaccinated birds was 105 h which was significantly longer than that of controls (p ⁇ 0.05).
  • multocida specific primers KMT 17T and KMT1SP6, to confirm P. multocida growth on the plates. Seven days after infection, the remaining birds were euthanized by intravenous injection, and sample specimens were processed and examined as described above. This animal experiment was approved by the Animal Care and Use Committee at the National Animal Disease Center, Ames, IA.
  • Results from the experiment are tabulated below. All control and vaccinates which died without euthanasia died of acute FC as evidenced by pure cultures of P. multocida obtained from all trachea, liver, and spleen specimens sampled. PCR analysis of selected colonies using P. multocidaspscific primers confirmed that the recovered bacterial growths were P. multocida serotype A. In both challenge groups, birds vaccinated with the recombinant FHAB2 peptides were significantly protected from death (Chi Square Test). The surviving birds were euthanized after seven days, and tissue samples were obtained. No liver or spleen samples from the vaccinated survivors were culture-positive. Of the surviving controls, two challenged with P- 1059 and one challenged with ⁇ 73 were culture-positive.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Veterinary Medicine (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
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  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Peptides Or Proteins (AREA)

Abstract

L'invention concerne des vaccins qui comprennent un ou plusieurs peptides FHAB2 de P. multocida, qui peuvent être utilisés pour obtenir une protection à large spectre contre différents sérotypes capsulaires de P. multocida.
EP09774439A 2008-07-03 2009-07-01 Vaccins comprenant des peptides d'hémagglutinine filamenteuse recombinants de pasteurella multocida Withdrawn EP2313427A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7794808P 2008-07-03 2008-07-03
PCT/US2009/049401 WO2010002989A2 (fr) 2008-07-03 2009-07-01 Vaccins comprenant des peptides d'hémagglutinine filamenteuse recombinants de pasteurella multocida

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EP2313427A2 true EP2313427A2 (fr) 2011-04-27

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EP (1) EP2313427A2 (fr)
AU (1) AU2009266920A1 (fr)
CA (1) CA2729818A1 (fr)
WO (1) WO2010002989A2 (fr)

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Publication number Priority date Publication date Assignee Title
ES2824402T3 (es) 2013-11-01 2021-05-12 Boehringer Ingelheim Animal Health Usa Inc Vacunas atenuadas contra Pasteurella multocida y procedimientos de fabricación y uso de las mismas

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US6790950B2 (en) * 1999-04-09 2004-09-14 Pharmacia & Upjohn Company Anti-bacterial vaccine compositions

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Title
See references of WO2010002989A2 *

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AU2009266920A1 (en) 2010-01-07
CA2729818A1 (fr) 2010-01-07
WO2010002989A3 (fr) 2010-03-11
WO2010002989A2 (fr) 2010-01-07

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