WO2006022343A1 - 無脊椎動物由来の生殖腺刺激ホルモン及びその製法 - Google Patents
無脊椎動物由来の生殖腺刺激ホルモン及びその製法 Download PDFInfo
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- WO2006022343A1 WO2006022343A1 PCT/JP2005/015458 JP2005015458W WO2006022343A1 WO 2006022343 A1 WO2006022343 A1 WO 2006022343A1 JP 2005015458 W JP2005015458 W JP 2005015458W WO 2006022343 A1 WO2006022343 A1 WO 2006022343A1
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- amino acid
- acid sequence
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/575—Hormones
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/43504—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from invertebrates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P15/00—Drugs for genital or sexual disorders; Contraceptives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K19/00—Hybrid peptides, i.e. peptides covalently bound to nucleic acids, or non-covalently bound protein-protein complexes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P21/00—Preparation of peptides or proteins
- C12P21/02—Preparation of peptides or proteins having a known sequence of two or more amino acids, e.g. glutathione
Definitions
- the present invention relates to a gonad-stimulating hormone derived from an invertebrate such as a starfish starfish and a method for producing the same.
- gonad-stimulating hormones in vertebrates that control the development of the gonad, the development of the egg's sperm, the release of 'maturation', and the like. Elucidation of gonadotropins in vertebrates such as fish is progressing. Their structural similarity is well preserved from fish to humans, and each is a heterodimeric protein hormone consisting of one ex subunit and one j8 subunit.
- Vertebrate gonad-stimulating hormone has been confirmed to have gonad-stimulating effects among vertebrates across species (Non-patent Document 1, Patent Documents 1 and 2), but has no effect on invertebrates. Invertebrate gonadotropins are not as well understood as vertebrate gonadotropins. It has been confirmed that gonad-stimulating hormone (GSS) is also extracted from the invertebrate starfish starfish (GSS) and induces ovulation of ovarian pieces (Non-patent Documents 2 and 3).
- GSS gonad-stimulating hormone
- This gonad-stimulating hormone is known to act on the follicular cells surrounding the egg in the ovary to newly synthesize and secrete an oocyte maturation-inducing hormone (1-methyladenine) that acts directly on the egg (non-patented). Reference 4).
- Patent Document 1 Japanese Patent No. 2967945
- Patent Document 2 JP 06-107689
- Non-Patent Document 1 Japan Society of Comparative Endocrinology, “Biological Science of Hormones 5 Hormone and (11)” Society Publishing Center, 41-47, 1979
- Non-Patent Document 2 The Zoological Society of Japan, “Problems of Contemporary Zoology 4 Eggs and Sperm”, University of Tokyo Press, 21-37, 1975
- Non-Patent Literature 3 Shirai H., Gonad- Stimulating and Maturation-Inducing substance, Method in Cell Biology "Academic Press, vol.27, pp.73-88, 1986
- Non-Patent Document 4 Mita M. & Nagahama Y., Involvement of G-proteins and adenylate cy clase in the action of gonad— stimulating substance on starfish ovarian follicle cells., Developmental Biology, 1991, 144, 262-8
- Gonadal stimulating hormone is important because it has a maturation-promoting effect and can be used for aquaculture of organisms derived from it.
- the present invention is the result of elucidating the structure of an invertebrate gonadotropin for the first time, and is expected to be applied to the cultivation of invertebrates such as shrimp, strength, and shellfish.
- the present inventors have succeeded in analyzing the structure of the gonad-stimulating hormone secreted by the nerve cells of the starfish starfish.
- the present inventors found that this gonad-stimulating hormone is a peptide having a molecular weight of 450 to 4900 consisting of subunits having molecular weights of 2000 to 2400 and 2400 to 2600, respectively, and cysteine contained in these two subunits. It was revealed for the first time that an SS bridge was formed between SH groups, and it was revealed that the peptide obtained by synthesizing, mixing and acidifying these two subunits has gonad-stimulating activity. confirmed.
- Such an analysis result by the present inventors opens the way to a wide range of applications such as enabling mass production of the hormone.
- the present invention is an invertebrate-derived gonad-stimulating hormone comprising the following two peptides and having a bridge formed by SS bonds between six cysteines.
- the present invention is derived from an invertebrate animal obtained by mixing and acidifying the following two peptides: Is a gonadal stimulating hormone.
- a peptide consisting of the amino acid sequence of SEQ ID NO: 1 or one or several (for example, 2 to 3) amino acids (preferably amino acids other than Cys) in this amino acid sequence have been deleted, substituted or added.
- Peptides with gonad stimulating activity consisting of different amino acid sequences
- a peptide comprising the amino acid sequence of SEQ ID NO: 2 or 1 or several (eg, 2 to 3) amino acids (preferably amino acids other than Cys) are deleted, substituted or added in this amino acid sequence.
- Peptides with gonad stimulating activity consisting of different amino acid sequences
- the present invention also provides a method for producing an invertebrate-derived gonadotropin comprising mixing and acidifying the above two peptides.
- These two peptides can be obtained by any method, that is, they can be synthesized chemically or obtained using genetic engineering as described below.
- the present invention is a DNA encoding one of the above two peptides ((c) and (d)).
- a host transformed with the vector containing these two DNAs is cultured or grown, and the peptide is collected from the host or a culture solution of the host.
- a peptide having gonad stimulating activity can be produced by mixing and acidifying the obtained peptide.
- the present invention also includes DNAs encoding the above two peptides ((c) and (d)) and having a homology of 70% or more with the nucleotide sequence of SEQ ID NO: 3.
- a peptide having gonad stimulating activity can be produced by culturing or growing a host transformed with a vector comprising this DNA. Alternatively, the peptide may be collected from the host or the culture medium of the host, and the resulting peptide may be mixed and acidified.
- the DNA base sequence of the invertebrate gonadotropin gene of the present invention is a DN encoding the base sequence shown in SEQ ID NO: 3 (351 bases) or the above two peptides ((c) and (d)). It also has a base sequence ability including A and having a homology of 70% or more with the base sequence of SEQ ID NO: 3.
- the invertebrate gonad applied to related but different animal species. It is thought to function as a gene for stimulating hormone.
- the amino acid sequence of the invertebrate gonadotropin of the present invention is 116 amino acids shown in SEQ ID NO: 4, or one or several (for example, 2 to 3) amino acids in this amino acid sequence (preferably, Amino acid sequence other than Cys) is deleted, substituted or added.
- the invertebrate gonadotropin of the present invention comprises cysteine (4th and 16th amino acid sequence of SEQ ID NO: 1 and 10 of amino acid sequence of SEQ ID NO: 2) contained in each peptide of GSS-A, GSS-B and force. 11th, 15th, and 24th), a peptide that is formed by forming an SS bond acidly and bonding one-to-one. There are 12 combinations of SS bonds between GSS-A and GSS-B.
- the above signal sequence is cleaved to form a cross-linked structure between the GSS-A and GSS-B peptides, and finally the GSS-C portion is cleaved to stimulate the gonad.
- the GSS-C moiety is also considered to have physiological activity.
- invertebrate gonadotropins of the present invention are based on secretion from the nervous system. Since then, the main source of extraction of gonadotropins in other types of invertebrates (other than starfish) has been neural tissue in that species. In addition, if there are tissues' organs that have been reported to have gonadotropic hormone action depending on the animal species, these may be used as the extraction source.
- Invertebrates include many useful species in fisheries, such as coelenterates such as corals, echinoderms such as sea cucumbers, sea cucumbers, molluscs such as octopus squid, and crustaceans such as shrimp It is.
- a peptide can be obtained by purification using the gonad stimulating activity as an index from the above extraction source.
- Purification may be carried out by a liquid chromatography method or an aqueous two-layer partition method, which may be performed by various methods. However, high-performance liquid chromatography is desirable for high-level purification.
- a size exclusion chromatography column, an ion exchange chromatography column, a reverse phase chromatography column, or the like can be used as the column.
- the fraction obtained by separation by such a purification method is selected using the gonad stimulating activity as an index.
- the gonad stimulating activity can be measured by the following method.
- Gonadal stimulating hormone has multiple long-term and short-term functions (long-term: gonad development, short-term: induction of egg laying).
- long-term gonad development, short-term: induction of egg laying
- the test individuals In order to use this short-term function, the test individuals must have eggs that are sufficiently developed to lay eggs. Individuals used for testing are in early spawning season It is preferable to collect and maintain vigorously in a laboratory water tank. Not all individuals that have been collected are mature enough to lay eggs. They can lay eggs, but their maturity levels are slightly different, and there are usually differences in hormone sensitivity among individuals. Therefore, in order to test gonad-stimulating activity, it is necessary to search for mature individuals (individuals with eggs that can lay eggs) and prepare multiple individuals with some degree of sensitivity to hormones. is there.
- Gonadal stimulating hormone stimulates follicular cells in the ovaries, which secrete another hormone, the “egg maturation-inducing hormone”, that acts on the egg, resulting in ovulation.
- This egg maturation-inducing hormone is a hormone that works directly on the egg.
- One of the short-term functions of the gonadotropin is to make this egg maturation-inducing hormone.
- use a commercially available egg maturation-inducing hormone When investigating susceptibility, use a commercially available egg maturation-inducing hormone.
- the above purification may be repeated a plurality of times. As a result, a single peptide having a molecular weight of 4500 to 4900 can be obtained.
- this peptide is composed of two subunits (GSS-A and GSS-B).
- the molecular weight of each subunit is 2000-2400 and 2400-2600, respectively.
- These subunits can be obtained by reducing the above high molecular weight peptides. This reduction can be performed using various reducing agents. Uses a relatively mild reducing agent such as dithiothreitol, 2-mercaptoethanol, thioglycolic acid, benzenethiol, and parathiocresol. I prefer that.
- a peptide having a higher molecular weight than the above ie, gonad-stimulating hormone of the present invention
- gonad-stimulating hormone of the present invention can be obtained by mixing and acidifying these two peptides.
- each of the two subunits contains a cysteine
- an acid bridge generates an SS bridge between the SH groups of the cysteine contained in each subunit, and these two subunits are bonded.
- the following reagents used for optimizing (refolding) the SS cross-linking structure of proteins can be present at the same time as the peptides to increase the efficiency of generating the correct SS cross-linking between peptides. Can be raised.
- Thioredoxin (a protein involved in redox action in vivo)
- Protein disulfide isomerase protein disulfide exchange enzyme in vivo
- BMC protein disulfide exchange enzyme in vivo
- ⁇ protein disulfide exchange enzyme in vivo
- the peptide of the present invention can also be produced by a genetic recombination method.
- DNA encoding the amino acid of SEQ ID NOs: 1 and 2, or an amino acid in which one or several (eg, 2-3) amino acids excluding Cys are deleted, substituted, or added in these amino acid sequences eg, Create a vector that incorporates DNA that has 70% or more homology with the nucleotide sequence of SEQ ID NO: 3, or a vector that incorporates SEQ ID NO: 3 88-144 and 277-348)
- the host is cultured or grown, and the target peptide is purified from the host or the culture solution of the host.
- the obtained peptide may be a peptide in which two subunits (GSS-A and GSS-B) are combined. Force By oxidizing the obtained peptide (two subunits) with the above oxidizing agent A peptide having a desired gonad stimulating activity can be obtained.
- this peptide is injected directly into the body cavity or ovary of these invertebrates by injection or the like. These can be mixed with seawater in these tanks or mixed with food.
- the gonad stimulating activity was examined as follows in the following examples.
- the ovaries (tuft-like morphology) were removed from the test individuals in seawater, and the ovaries were cut into 5 mm-long small pieces and arranged.
- This polymer elution fraction (PD-10 fraction) was freeze-dried and then dissolved in 150 mL of 10 mM sodium phosphate (pH 7.0). The solution was applied to a Sephadex G-50 column (500 cm 3 ) equilibrated with the same solution in three 50 mL portions, and the gonad-stimulating fraction (the portion excluding the high-molecular protein) was collected. (G-50 fraction, recovered amount approx. 600mL)
- the gonad-stimulating active ingredient contained in the final fraction is a polypeptide with a molecular weight of 4737, and it is divided into two components by further treatment and reduction treatment, so one peptide with a molecular weight of 2236 and 2507 respectively.
- it has a heterodimer structure consisting of bismuth, and its cross-linking depends on the SS bond between cystine residues, such as its sensitivity to reducing agents.
- GSS-A EKYCDDDFHMAVFRTCAVS (SEQ ID NO: 1) (19 amino acid residues, molecular weight 2236)
- GSS-B SEYSGIASYCCLHGCTPSELSWC (SEQ ID NO: 2) (24 amino acid residues, molecular weight 2 507)
- Genomic DNA was isolated from the starfish testis and purified using a QIAGEN (R) Genomic-tip.
- a part of the GSS gene sequence was amplified by the nested PCR method using the synthesized degenerate primer with the genome sample as a template, and the sequence was decoded with a single DNA sequencer.
- 5′-primerGR SEQ ID NO: 9
- 3′-primerGF SEQ ID NO: 10
- 5'-primerMFl SEQ ID NO: 11
- 5'-primerMF2 SEQ ID NO: 12
- 3'-primerMRl SEQ ID NO: 13
- 3'-primerMR2 SEQ ID NO: 14
- CDNA was synthesized from purified total RNA using QIAGEN (R) Omniscript (TM) RT. Using this cDNA as a template, the previously synthesized primers (5'-primerMFl, 5'- primerMF2, 3'-primerMRl, 3 '-primerMR2) is used to amplify the GSS cDNA sequence by nested PCR method,
- the sequence was decoded with a DNA sequencer.
- This base sequence was translated into amino acids to obtain the amino acid sequence of SEQ ID NO: 4.
- sequences of GSS-A and GSS-B analyzed by mass spectrometry and protein sequencer are located at positions 30-48 (033-) and 93-116 (GSS-B) of this amino acid sequence (SEQ ID NO: 4).
- the 1-29th portion of this amino acid sequence is a signal sequence peculiar to secretory proteins, and the 49th to 92nd portions are sequences that are excised after biosynthesis of the above 116 amino acids ( GSS-C). At both ends of the GSS-C sequence is a KR sequence that specifically undergoes enzymatic cleavage after biosynthesis.
- Synthetic peptides were dissolved in 20 mM Tris buffer so as to have a concentration of 0.4 mM or ImM (equal moles), respectively, and reacted in the presence of an oxidant at room temperature for 3 days or 20 days.
- As the acid agent 99.999% oxygen gas or 0.1M acid type dartathione was used.
- the gonad stimulating activity was detected in a relatively small peak with a peak area of 4.2%, which was separated by a trace high-speed liquid chromatography apparatus and measured for the gonad stimulating activity of each peak fraction.
- Synthetic peptides did not show gonad-stimulating activity alone, and only 4737 complex (GSS-A / B) formed by acid-acid reaction showed gonad-stimulating activity. .
- Synthetic hormone (GSS-A / B) produced by oxidation reaction showed hormonal action not only in Itomas starfish but also in other related species.
- invertebrate gonadotropins mass production of invertebrate gonadotropins is possible, and it is important for aquatic invertebrates such as force-fish, shrimp, fish, sea cucumber, and shellfish, which are important in fisheries. On the other hand, it became possible to improve production and develop new useful species.
- aquaculture is carried out by releasing fertilized eggs or artificial propagation of starfish, and artificial management of the number of starfish in the sea area is promoted to promote biodegradation of marine sediment feed and improve water quality. Can be achieved.
- These two species are the priority species in the aquaculture area, and their habitat extends to the whole area from Hokkaido to Kyushu, so considerable application effects are expected.
- FIG. 1 is a photograph showing criteria for determining gonad stimulating activity. The right shows that the egg has been released and has gonad stimulating activity.
- FIG. 2 shows high-performance liquid chromatography for purifying gonadotropin.
- FIG. 3 is a diagram showing high performance liquid chromatography for purifying gonadotropin.
- FIG. 4 is a diagram showing a high-performance liquid chromatography for purifying gonadotropic hormone.
- FIG. 5 is a diagram showing a high-performance liquid chromatography for purifying gonadal stimulating hormone.
- FIG. 6 is a diagram showing the measurement results of purified gonadotropin (heterodimer) using a mass spectrometer.
- FIG. 7 is a diagram showing the results of measurement of gonadotropin subunits using a mass spectrometer.
- FIG. 8 is a diagram showing high performance liquid chromatography of purified gonadotropic hormone.
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Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2005275728A AU2005275728A1 (en) | 2004-08-27 | 2005-08-25 | Gonadotropic hormone originating in invertebrate and method of producing the same |
| JP2006532593A JPWO2006022343A1 (ja) | 2004-08-27 | 2005-08-25 | 無脊椎動物由来の生殖腺刺激ホルモン及びその製法 |
| CA002578136A CA2578136A1 (en) | 2004-08-27 | 2005-08-25 | Gonadotropic hormone originating in invertabrate and method of producing the same |
| US11/661,140 US20080096251A1 (en) | 2004-08-27 | 2005-08-25 | Invertebrate-Derived Gonadotropic Hormone and its Synthesis |
| NO20071296A NO20071296L (no) | 2004-08-27 | 2007-03-09 | Invertebrat-avledet gonadotropinhormon og dets syntese |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004247779 | 2004-08-27 | ||
| JP2004-247779 | 2004-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006022343A1 true WO2006022343A1 (ja) | 2006-03-02 |
Family
ID=35967550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/015458 Ceased WO2006022343A1 (ja) | 2004-08-27 | 2005-08-25 | 無脊椎動物由来の生殖腺刺激ホルモン及びその製法 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20080096251A1 (ja) |
| JP (1) | JPWO2006022343A1 (ja) |
| KR (1) | KR100864127B1 (ja) |
| CN (1) | CN101048503A (ja) |
| AU (1) | AU2005275728A1 (ja) |
| CA (1) | CA2578136A1 (ja) |
| NO (1) | NO20071296L (ja) |
| RU (1) | RU2349601C2 (ja) |
| WO (1) | WO2006022343A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010053041A (ja) * | 2008-08-26 | 2010-03-11 | Kyushu Univ | ナマコ放卵・放精誘起剤、及びそれを用いたナマコの生産方法 |
| WO2018079861A1 (ja) * | 2016-10-28 | 2018-05-03 | 国立大学法人九州大学 | 放卵又は放精を誘起するペプチド |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032504B (zh) * | 2017-05-18 | 2020-09-04 | 郑州永丰生物肥业有限公司 | 水产用水质改良剂及其制备方法 |
| CN114720570B (zh) * | 2020-12-22 | 2023-08-29 | 上海市环境科学研究院 | 一种检测鱼肉中8种雌激素的方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2112527C1 (ru) * | 1995-07-06 | 1998-06-10 | Полярный научно-исследовательский институт морского рыбного хозяйства и океанографии им.Н.М.Книповича | Способ получения комплекса биологически активных продуктов из голотурии |
-
2005
- 2005-08-25 RU RU2007111137/13A patent/RU2349601C2/ru not_active IP Right Cessation
- 2005-08-25 AU AU2005275728A patent/AU2005275728A1/en not_active Abandoned
- 2005-08-25 KR KR1020077004276A patent/KR100864127B1/ko not_active Expired - Fee Related
- 2005-08-25 CA CA002578136A patent/CA2578136A1/en not_active Abandoned
- 2005-08-25 CN CNA200580036846XA patent/CN101048503A/zh active Pending
- 2005-08-25 WO PCT/JP2005/015458 patent/WO2006022343A1/ja not_active Ceased
- 2005-08-25 JP JP2006532593A patent/JPWO2006022343A1/ja active Pending
- 2005-08-25 US US11/661,140 patent/US20080096251A1/en not_active Abandoned
-
2007
- 2007-03-09 NO NO20071296A patent/NO20071296L/no not_active Application Discontinuation
Non-Patent Citations (3)
| Title |
|---|
| CHAET AB ET AL: "Gamete release and shedding substance of Sea-stars.", SYMP ZOOL SOC LAND., no. 20, 1967, pages 13 - 24, XP008056646 * |
| KANATANI H ET AL: "Purification of gonad-stimulating substance obtained from radial nerves of the starfish, Asterias amurensis.", DEVELOPMENT GROWTH AND DIFFERENTIATION., vol. 13, no. 3, 1971, pages 151 - 164, XP008056647 * |
| MITA M ET AL: "Involvement of G-proteins and adenylate cyclase in the action of gonad-stimulating substance on starfish ovarian follicle cells.", DEVELOPMENTAL BIOLOGY., vol. 144, 1991, pages 262 - 268, XP008056648 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010053041A (ja) * | 2008-08-26 | 2010-03-11 | Kyushu Univ | ナマコ放卵・放精誘起剤、及びそれを用いたナマコの生産方法 |
| WO2018079861A1 (ja) * | 2016-10-28 | 2018-05-03 | 国立大学法人九州大学 | 放卵又は放精を誘起するペプチド |
| JPWO2018079861A1 (ja) * | 2016-10-28 | 2019-09-19 | 国立大学法人九州大学 | 放卵又は放精を誘起するペプチド |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100864127B1 (ko) | 2008-10-16 |
| JPWO2006022343A1 (ja) | 2008-05-08 |
| AU2005275728A1 (en) | 2006-03-02 |
| CN101048503A (zh) | 2007-10-03 |
| NO20071296L (no) | 2007-05-25 |
| RU2007111137A (ru) | 2008-10-10 |
| KR20070056069A (ko) | 2007-05-31 |
| RU2349601C2 (ru) | 2009-03-20 |
| US20080096251A1 (en) | 2008-04-24 |
| CA2578136A1 (en) | 2006-03-02 |
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