WO1987003485A1 - Composition pour le traitement de la diarrhee - Google Patents
Composition pour le traitement de la diarrhee Download PDFInfo
- Publication number
- WO1987003485A1 WO1987003485A1 PCT/NL1986/000041 NL8600041W WO8703485A1 WO 1987003485 A1 WO1987003485 A1 WO 1987003485A1 NL 8600041 W NL8600041 W NL 8600041W WO 8703485 A1 WO8703485 A1 WO 8703485A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substances
- composition according
- adhesine
- diarrhoea
- combatting
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/08—Tripeptides
- C07K5/0802—Tripeptides with the first amino acid being neutral
- C07K5/0804—Tripeptides with the first amino acid being neutral and aliphatic
- C07K5/0808—Tripeptides with the first amino acid being neutral and aliphatic the side chain containing 2 to 4 carbon atoms, e.g. Val, Ile, Leu
-
- 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
- C07K14/24—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria from Enterobacteriaceae (F), e.g. Citrobacter, Serratia, Proteus, Providencia, Morganella, Yersinia
- C07K14/245—Escherichia (G)
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/08—Tripeptides
- C07K5/0802—Tripeptides with the first amino acid being neutral
- C07K5/0804—Tripeptides with the first amino acid being neutral and aliphatic
- C07K5/0806—Tripeptides with the first amino acid being neutral and aliphatic the side chain containing 0 or 1 carbon atoms, i.e. Gly, Ala
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K5/00—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof
- C07K5/04—Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof containing only normal peptide links
- C07K5/08—Tripeptides
- C07K5/0802—Tripeptides with the first amino acid being neutral
- C07K5/0804—Tripeptides with the first amino acid being neutral and aliphatic
- C07K5/081—Tripeptides with the first amino acid being neutral and aliphatic the side chain containing O or S as heteroatoms, e.g. Cys, Ser
Definitions
- compositions for combatting diarrhoea Compositions for combatting diarrhoea
- V. cholearae ⁇ .coli appears to be the main procreator. No reliable figures are known with respect to slaughter cattle but the loss will certainly run into a year.
- Enterotoxic E.coii stems distinguish themselves from commensal non-patho ⁇ eneous stems in that they comprise two important virulence factors, to wit: the production of enterotoxins and the presence of adhesion antigens.
- the adhesion antigens of ⁇ .coli consist of electron microscopically visible thread-like appendixes on the bacterium surface indicated as fi briae or pili. Said fimbriae appear to be consisting of hundreds of identical protein sub-units having a molecular weight in the order of magnitude of 25,000. Through the fimbriae the bacterium appears to be capable of colonizing .the intestinalepitheliumand of proliferating the intestine in this way. As soon as the colonisation is effected the produced and excreted enterotoxin causes the development of diarrhoea.
- K88 One of the adhesion antigens in enterotoxic E.coli- stems from piglets is indicated as K88.
- Three variants of the K88 adhesine are known which can properly be immunologically distinguished.
- the primary structure of the subunit,of which the adhesine is composed, of each of said variants has been completely elucidated by us.
- conserved areas identical amino acid sequences in the subunit variants
- variable amino acid sequences appear to be present on certain sites in which the three variants distinguish themselves from - . -
- each variant fragment can be isolated which can block the binding of the adhesine carrying bacteria to erythrocytes (haemagglutination reaction) or to intestinal epithelial cells in low concentrations. Said fragments originate from the conserved parts of the subunit variants. Analysis of three isolated fragments showed that there is question here of the following tripeptides: serine-leucine-phenylalanine, isoleucine-alanine-phenylalanine and alanine-isoleucine- phenylalanine. Said peptides are resistant to decomposition by proteolytic enzymes from the gastro-intestinai tract.
- amino acid sequences are present on certain sites which show a strong affinity for the adhesine receptors. Said amino acid sequences, therefore, possibly form an essential part of the natural receptor binding site.
- the possibly occurring absorption of said substances by the intestinal epithelium can be prevented by coupling said substances to inert macromolecular carriers.
- compositions according to the invention can also be used with adults to combat diarrhoea caused by enterotoxic E.coli-stems.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Biophysics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Medicinal Chemistry (AREA)
- Molecular Biology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Life Sciences & Earth Sciences (AREA)
- Gastroenterology & Hepatology (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Peptides Or Proteins (AREA)
Abstract
Une composition thérapeutique pour le traitement et la prévention de la diarrhée comprend une ou plusieurs substances qui arrêtent les récepteurs d'adhésine présents sur l'épithélium intestinal. Lesdites substances sont de préférence des peptides, en particulier de Ser-Leu-Phe, de Ile-Ala-Phe et/ou de Ala-Ile-Phe.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8503413A NL8503413A (nl) | 1985-12-11 | 1985-12-11 | Preparaten ter bestrijding van diarrhee. |
NL8503413 | 1985-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1987003485A1 true WO1987003485A1 (fr) | 1987-06-18 |
Family
ID=19847002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1986/000041 WO1987003485A1 (fr) | 1985-12-11 | 1986-12-09 | Composition pour le traitement de la diarrhee |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0248838A1 (fr) |
JP (1) | JPS63501950A (fr) |
NL (1) | NL8503413A (fr) |
WO (1) | WO1987003485A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992016551A1 (fr) * | 1991-03-25 | 1992-10-01 | Carlbiotech Ltd. A/S | Composes peptidiques a petite chaine utiles pour le traitement du glaucome |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6818585B2 (en) * | 1998-12-30 | 2004-11-16 | Univation Technologies, Llc | Catalyst compounds, catalyst systems thereof and their use in a polymerization process |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1595021A (en) * | 1977-01-07 | 1981-08-05 | Ciba Geigy Ag | Process for the production of antidiarrheal agents |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU921712A1 (ru) * | 1979-12-10 | 1982-04-23 | Ереванский политехнический институт им.К.Маркса | Станок дл обработки шатунных шеек коленчатых валов |
DE3213740A1 (de) * | 1982-04-14 | 1983-12-15 | Oerlikon-Boehringer GmbH, 7320 Göppingen | Wirbelgeraet |
JPS591101A (ja) * | 1982-05-24 | 1984-01-06 | Komatsu Ltd | クランクシヤフトミラ− |
-
1985
- 1985-12-11 NL NL8503413A patent/NL8503413A/nl not_active Application Discontinuation
-
1986
- 1986-12-09 JP JP50002387A patent/JPS63501950A/ja active Pending
- 1986-12-09 WO PCT/NL1986/000041 patent/WO1987003485A1/fr not_active Application Discontinuation
- 1986-12-09 EP EP19860906963 patent/EP0248838A1/fr not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1595021A (en) * | 1977-01-07 | 1981-08-05 | Ciba Geigy Ag | Process for the production of antidiarrheal agents |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992016551A1 (fr) * | 1991-03-25 | 1992-10-01 | Carlbiotech Ltd. A/S | Composes peptidiques a petite chaine utiles pour le traitement du glaucome |
US5464821A (en) * | 1991-03-25 | 1995-11-07 | Carlbiotech, Ltd. | Small peptidic compounds useful for the treatment of glaucoma |
Also Published As
Publication number | Publication date |
---|---|
NL8503413A (nl) | 1987-07-01 |
JPS63501950A (ja) | 1988-08-04 |
EP0248838A1 (fr) | 1987-12-16 |
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