US20050202039A1 - Renibacterium salmoninarum vaccine - Google Patents
Renibacterium salmoninarum vaccine Download PDFInfo
- Publication number
- US20050202039A1 US20050202039A1 US11/125,964 US12596405A US2005202039A1 US 20050202039 A1 US20050202039 A1 US 20050202039A1 US 12596405 A US12596405 A US 12596405A US 2005202039 A1 US2005202039 A1 US 2005202039A1
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- Prior art keywords
- arthrobacter
- positive
- fish
- species
- atcc
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-
- 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
- A61K39/05—Actinobacteria, e.g. Actinomyces, Streptomyces, Nocardia, Bifidobacterium, Gardnerella, Corynebacterium; Propionibacterium
-
- 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
- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/20—Bacteria; Culture media therefor
- C12N1/205—Bacterial isolates
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/195—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria
-
- 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
- A61K2039/51—Medicinal preparations containing antigens or antibodies comprising whole cells, viruses or DNA/RNA
- A61K2039/52—Bacterial cells; Fungal cells; Protozoal cells
- A61K2039/522—Bacterial cells; Fungal cells; Protozoal cells avirulent or attenuated
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12R—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES C12C - C12Q, RELATING TO MICROORGANISMS
- C12R2001/00—Microorganisms ; Processes using microorganisms
- C12R2001/01—Bacteria or Actinomycetales ; using bacteria or Actinomycetales
- C12R2001/06—Arthrobacter
Definitions
- This invention relates to the protection of farmed fish against disease caused by the bacterial species Renibacterium salmoninarum .
- This disease colloquially named bacterial kidney disease or BKD from some aspects of it pathology, is one of the most economically serious diseases in salmonoid culture. Conservative estimates suggest that losses on the west coast of Canada exceed 20 million dollars annually. Similar problems have occurred in Chile and the Pacific coast of the USA. The farming of some species, such as Chinook and Coho salmon, has become economically unsustainable in these areas due to this disease. In cooler waters such as Easter Canada and Northern Europe, the disease is characterised by less severe symptoms and gives rise generally to chronic infections. The consequent poor growth performance and increased susceptibility to concurrent disease cause a high economic loss in these industries also.
- FCA Freund's Complete Adjuvant
- the present invention provides an immune stimulating agent or vaccine comprising a live, non-virulent culture of an Arthrobacter strain.
- the invention further provides a vaccine directed to Renibacterium salmoninarium comprising a live non virulent culture of an Arthrobacter strain.
- the Arthrobacter strain is based on or is derived from strain RSxII, as deposited under Accession No ATCC 55921 with the America Type Culture Collection on 20 Dec. 1996.
- the strain is characterised by a partial 16s DNA sequence derived from the following: GAGTTTGATCCTGGCTCAGGATGAACGCTGGCGGCGTGCTTAACACATGC AAGTCGAACGATGAACCTGTGCTTGCACGG GGGATTAGTGGCGAACGGGTGAGTAACACGTGAGTAACCTGCCCTTGACT TCGGGATAAGCCTGGGAAACTGGGTCTAAT ACTGGATACGACCTCTCATCGCATGGTGTCCCCCTGGAAAGTTTTTGCGG TTGGATGGACTCGCGGCCTATCAGCTTG TTGGTGAGGTAATGGCTCACCAAGGCGACGACGGGTAGCCGGCCTGAGAGAG GGTGACCGGCCACACTGGGACTGAGACACG GCCCAGACTCCTACGGGAGGCAGCAGTGGGGAATATTGCACAATGGGCGA AAGCCTGATGCAGCAGTGGGGAATATTGCACAATGGGCGA AAGCCTGATGCAGCAGTGGGGAATATTGCACAATGGGCGA AAGCCTGATGCAGCAGTG
- the invention further provides a pharmaceutical preparation comprising a live, non-virulent culture of an Arthrobacter strain.
- the preparation can be used to provide protection against Renibacterium salmonarium.
- the immune stimulating agent/vaccine is presented as a lyophilised culture.
- the vaccine comprises a lyophilised culture in combination with a sterile diluent.
- the immune stimulating agent/vaccine may be administered by standard methods of vaccination.
- the invention also comprises the use of an immune stimulating agent/vaccine as hereinbefore defined for the protection of salmonoid fish against Renibacterium salmoninarum.
- the invention is an immune-stimulating agent or vaccine comprised of a live, non-virulent culture of an Arthrobacter species. It would be presented as a lyophilised culture in a ready to use form in a sterile diluent to be administered by any of the standard methods used for the vaccination of fish.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Medicinal Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Mycology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Virology (AREA)
- Biomedical Technology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- General Engineering & Computer Science (AREA)
- Gastroenterology & Hepatology (AREA)
- Immunology (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
The invention provides an immune stimulating agent or vaccine directed to Renibacterium salmoninarium comprising a live non-virulent culture of an Arthrobacter strain based on derived from or substantially homologous with strain RSxII as deposited as ATCC 55921. The culture may be presented in lyophilised form with a sterile diluent.
Description
- Protection of farmed fish against bacterial disease caused by Renibacterium salmoniarun by the use of a live strain of Arthrobacter spp. The working designation of this species, RSxII, is used through this document.
- This invention relates to the protection of farmed fish against disease caused by the bacterial species Renibacterium salmoninarum. This disease colloquially named bacterial kidney disease or BKD from some aspects of it pathology, is one of the most economically serious diseases in salmonoid culture. Conservative estimates suggest that losses on the west coast of Canada exceed 20 million dollars annually. Similar problems have occurred in Chile and the Pacific coast of the USA. The farming of some species, such as Chinook and Coho salmon, has become economically unsustainable in these areas due to this disease. In cooler waters such as Easter Canada and Northern Europe, the disease is characterised by less severe symptoms and gives rise generally to chronic infections. The consequent poor growth performance and increased susceptibility to concurrent disease cause a high economic loss in these industries also.
- A number of the standard methods for the production of effective vaccines have been used in efforts to provide protection against Renibacterium salmoninarum. Generally these have proved to be ineffective and, where successes have been reported by particular groups, these have provided unreplicable in the hands of others. Such methods have employed killed cells and cell fragments with or without adjuvants.
- The key factor in this lack of success is probably the ability of Renibacterium to survive and possibly multiply within the macrophages of the host fish. In this situation it is protected from the main immune systems of the host. Constant “leakage” of cells from the macrophages causes a low-level persistent infection which constantly challenges the fish immune system. Controlling this under normal conditions lowers the fitness of the animal and, if a further environmental or disease stress occurs, the Renibacterial cells may initiate a more damaging infection. Sometime during this process a full immune response may be mounted to the disease but this proves to be ineffective since large quantities of a 57000 kilodalton protein are produced by Renibacterium which induces the production of large quantities of antibodies which are not protective. The “preoccupation” of the humoral immune system with this protein prevents an effective response being made to other components of the bacteria which might confer protection. The p57 protein therefore acts as an effective decoy.
- The most successful of the approaches to vaccination against Renibacterium have all used Freund's Complete Adjuvant (FCA). This aids in the effective presentation of antigens to the T-cells in the normal way but is also, independently, a powerful stimulator of the non-specific cellular immune responses. FCA contains cell wall fragments obtained from species of Corynebacterium. The taxonomic relationships between bacteria recognised under this and associated genera are not clear and Renibacteria were originally classified as Corynebacteria. Some strains of Renibacteria also have powerful stimulators of non-specific immunity on their cell surfaces further suggesting a close taxonomic relationship. The closely relates genus Arthrobacter also contains species which have similarly reactive groups on their surface capable of stimulating non-specific immunity. Cells of this genus, not capable of causing disease but containing such groups on their surface and probably also antigens in common with Renibacterium, might reasonably be expected to stimulate powerful specific and non-specific immunity conferring protection against disease. The use of such Arthrobacter as live cells, capable of surviving inside macrophages, would prolong the stimulation and extend protection for a commercially acceptable period of time.
- It is an object of the present invention to provide an improved vaccine against Renibacterium salmonarium.
- Accordingly the present invention provides an immune stimulating agent or vaccine comprising a live, non-virulent culture of an Arthrobacter strain.
- The invention further provides a vaccine directed to Renibacterium salmoninarium comprising a live non virulent culture of an Arthrobacter strain.
- Preferably, the Arthrobacter strain is based on or is derived from strain RSxII, as deposited under Accession No ATCC 55921 with the America Type Culture Collection on 20 Dec. 1996.
- Suitably the strain is characterised by a partial 16s DNA sequence derived from the following:
GAGTTTGATCCTGGCTCAGGATGAACGCTGGCGGCGTGCTTAACACATGC AAGTCGAACGATGAACCTGTGCTTGCACGG GGGATTAGTGGCGAACGGGTGAGTAACACGTGAGTAACCTGCCCTTGACT TCGGGATAAGCCTGGGAAACTGGGTCTAAT ACTGGATACGACCTCTCATCGCATGGTGTCCCCCTGGAAAGTTTTTGCGG TTTTGGATGGACTCGCGGCCTATCAGCTTG TTGGTGAGGTAATGGCTCACCAAGGCGACGACGGGTAGCCGGCCTGAGAG GGTGACCGGCCACACTGGGACTGAGACACG GCCCAGACTCCTACGGGAGGCAGCAGTGGGGAATATTGCACAATGGGCGA AAGCCTGATGCAGCGACGCCGCGTGAGGGA CGACGGCCTTCGGGTTGTAAACCTCTTTCAGTAGGGAACAAGGCATCATT TTTGTGGTGTTGAGGGTACTTGCAGAAGAA GCACCGGCTAACTACGTGCCAGGCGCCGCGGTAATACGTAGGGTGCAAGC GTTATCCGGAATTATTGGGCGTAAAGAGCT CGTAGGCGGTTTGTCGCGTCTTTCGTGAAAGTCCGGGGCTCAACTCCGGA TCTTCGGTGGGTACGGGCAGACTAGAGTGA TGTAGGGGAGACTGGAATTCCTGGTGTAGCGGTGGAATGCGCAGATATCA GGAGGAACACCGATGGCGAAGGCAGGTCTC TGGGCATTAACTGACGCTGAGGAGCGAAAGCATGGGGAGCGAACAGGATT AGATACCCTGGTAGTCC - The invention further provides a pharmaceutical preparation comprising a live, non-virulent culture of an Arthrobacter strain.
- Suitably the preparation can be used to provide protection against Renibacterium salmonarium.
- The strain may be characterised by any or all of the following:
-
- 1. Positive gram-stain; easily discoloured
- 2. Non-motile
- 3. The cells, in the log phase of growth, are 0.8-1.2×1.0-8.0 μm often V-shaped with clubbed ends. As growth proceeds into stationary phase the rods segment into small cocci, 0.6-1.0 μm in diameter.
- 4. The enzymatic reactions used in diagnosis are as follows where + indicates positive, − indicates negative and (+) indicates a weak positive:
i) Alkaline phosphatase + ii) Butyrate esterase (C4) + iii) Caprylate esterase (C8) + iv) Myristate lipase (C14) − v) Leucine arylamidase + vi) Valine arylamidase (+) vii) Cystine arylamidase − Viii) Trypsin + ix) Chymostrypsin − x) Acid Phosphatase + xi) Phosphoamidase − xii) α-Galactosidase − xiii) β-Galactosidase (+) xiv) β-Glucuronidase + xv) α-Glucosidase + xvi) β-Glucosidase − xvii) N-Acetyl-β-glucosamidase − xviii) α-Mannosidase + xix) α-Fucosidase − -
- 5. Catalase Reaction Positive
- 6. Oxidase Reaction Negative
- Suitably the immune stimulating agent/vaccine is presented as a lyophilised culture.
- Preferably the vaccine comprises a lyophilised culture in combination with a sterile diluent.
- The immune stimulating agent/vaccine may be administered by standard methods of vaccination.
- The invention also comprises the use of an immune stimulating agent/vaccine as hereinbefore defined for the protection of salmonoid fish against Renibacterium salmoninarum.
- The invention is an immune-stimulating agent or vaccine comprised of a live, non-virulent culture of an Arthrobacter species. It would be presented as a lyophilised culture in a ready to use form in a sterile diluent to be administered by any of the standard methods used for the vaccination of fish.
- Efficacy
-
- 1. The strain RSxII shares highly specific antigenic determinants with R, salmoninarum. Polyclonal antisera raised against R. Salmoninarum has a high, cross-reactive titre against whole cells of RSxII in an ELISA test system.
- 2. RSxII has been shown to stimulate the immune system of Atlantic salmon as demonstrated by lymphocyte proliferation assays.
- 3. It has been repeatedly shown that in direct challenge (in vivo) studies Atlantic salmon infected at 12-14 weeks by peritoneal injection with the pathogen were protected. The size of salmon ranged from 20-100 g in different trials and protection was measured here by the extent of recovery of live bacteria from the anterior kidney, the commonest focus of infection in fish affected by this disease. Using relative percent culture activity (RPCA) as an index protection ranged from 57-87% in trials where the level of infection in non-vaccinated fish was always greater than 80%. RPCA is derived as follows:
- 4. PCR was used to assess the presence of DNA of the pathogen shed by fish into the holding water as a further, very sensitive measure, of the presence of the pathogen in treated and control populations. Whereas DNA was present in the holding water of non-vaccinated fish it was present as a trace or absent from that of the vaccinates. The levels correlated well with the levels obtained by the culture technique validating that method.
- The vaccine disclosed herein protects fish against Renibacterium salmoninarum to a greater extent than consistently achieved previously by any other formulation or method.
- It is protective rather than a treatment and therefore reduces the changes of an infection becoming established, reduces or eliminates the requirement for drug therapy and promotes growth by retaining the fish at a higher level of fitness.
- Unlike drug treatment it poses no risk to the environment since the invention comprises an organism isolated from the natural environment and which has been shown to be non-pathogenic for other animal species.
- It can be administered concurrently with other vaccines within the standard routine of farm husbandry.
Claims (7)
1-23. (canceled)
24. A method of inducing an immune response in fish comprising
administering an effective immunizing dose of an Arthrobacter species to said fish.
25. The method of claim 24 further comprising administering an adjuvant to said fish.
26. The method of claim 24 wherein said Arthrobacter species has a partial 16s DNA sequence that is similar to the polynucleotide sequence of SEQ ID NO: 1.
27. The method of claim 24 wherein said Arthrobacter species has one or more of the following characteristics selected from the group consisting of (a) positive gram stain, easily discolored; (b) nonmotile; (c) in log phase growth, the cells are between approximately 0.8 and 1.2 μm by between approximately 1.0 and 8.0 μm, are often V-shaped with clubbed end; (d) as the organism approaches stationary phase, the rods segment into small cocci of approximately 0.6 to 1.0 μm in diameter; (e) catalase reaction positive; (f) oxidase reaction positive; (g) are positive to enzymatic reactions with alkaline phosphates, butyrate esterase, caprylate esterase, leucine arylamidase, trypsin, acid phosphatase, β-glucuronidase, α-glucosidase, and α-mannosidase; (h) are negative to enzymatic reactions with myristate lipase, cystine arylamidase, chymostrypsin, phosphoamidase, α-galactosidase, β-glucosidase, N-acetyl-β-glucosamidase, and α-fucosidase; and (i) are weakly positive to enzymatic reactions with valine arylamidase and β-galactosidase.
28. The method of claim 24 wherein said Arthrobacter species has similar physical characteristics as Arthrobacter strain RSxII (ATCC Deposit Accession No ATCC 55921).
29. The method of claim 24 wherein said Arthrobacter species is Arthrobacter strain RSxII (ATCC Deposit Accession No ATCC 55921).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/125,964 US20050202039A1 (en) | 1997-01-30 | 2005-05-10 | Renibacterium salmoninarum vaccine |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9701897.2 | 1997-01-30 | ||
GBGB9701897.2A GB9701897D0 (en) | 1997-01-30 | 1997-01-30 | Vaccine |
US09/355,474 US6627203B1 (en) | 1997-01-30 | 1998-01-28 | Renibacterium salmoninarum vaccine |
PCT/GB1998/000256 WO1998033884A1 (en) | 1997-01-30 | 1998-01-28 | Renibacterium salmoninarum vaccine |
US10/634,681 US6913754B1 (en) | 1997-01-30 | 2003-08-05 | Renibacterium salmoninarum vaccine |
US11/125,964 US20050202039A1 (en) | 1997-01-30 | 2005-05-10 | Renibacterium salmoninarum vaccine |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/634,681 Continuation US6913754B1 (en) | 1997-01-30 | 2003-08-05 | Renibacterium salmoninarum vaccine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20050202039A1 true US20050202039A1 (en) | 2005-09-15 |
Family
ID=34702534
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/634,681 Expired - Lifetime US6913754B1 (en) | 1997-01-30 | 2003-08-05 | Renibacterium salmoninarum vaccine |
US11/125,964 Abandoned US20050202039A1 (en) | 1997-01-30 | 2005-05-10 | Renibacterium salmoninarum vaccine |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/634,681 Expired - Lifetime US6913754B1 (en) | 1997-01-30 | 2003-08-05 | Renibacterium salmoninarum vaccine |
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US (2) | US6913754B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050129714A1 (en) * | 2002-07-15 | 2005-06-16 | Kira Salonius | Vaccine against salmonid rickettsial septicaemia based on arthrobacter cells |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE277660T1 (en) | 1994-10-14 | 2004-10-15 | Bird Products Corp | EXHAUST VALVE WITH MEASUREMENT TRANSDUCER FOR THE EXHAUST FLOW |
-
2003
- 2003-08-05 US US10/634,681 patent/US6913754B1/en not_active Expired - Lifetime
-
2005
- 2005-05-10 US US11/125,964 patent/US20050202039A1/en not_active Abandoned
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050129714A1 (en) * | 2002-07-15 | 2005-06-16 | Kira Salonius | Vaccine against salmonid rickettsial septicaemia based on arthrobacter cells |
US7302913B2 (en) * | 2002-07-15 | 2007-12-04 | Novartis Ag | Vaccine against salmonid rickettsial septicaemia based on arthrobacter cells |
US20090155313A1 (en) * | 2002-07-15 | 2009-06-18 | Novartis Ag | Vaccine Against Salmonid Rickettsial Septicaemia Based on Arthrobacter Cells |
US7707970B2 (en) * | 2002-07-15 | 2010-05-04 | Novartis Ag | Vaccine against salmonid rickettsial septicaemia based on Arthrobacter cells |
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Publication number | Publication date |
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US6913754B1 (en) | 2005-07-05 |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |