WO2006049157A1 - コネキシン26阻害活性を有する多量体型オレアミド誘導体と、その癌治療等への利用 - Google Patents
コネキシン26阻害活性を有する多量体型オレアミド誘導体と、その癌治療等への利用 Download PDFInfo
- Publication number
- WO2006049157A1 WO2006049157A1 PCT/JP2005/020089 JP2005020089W WO2006049157A1 WO 2006049157 A1 WO2006049157 A1 WO 2006049157A1 JP 2005020089 W JP2005020089 W JP 2005020089W WO 2006049157 A1 WO2006049157 A1 WO 2006049157A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oleamide
- connexin
- cancer
- pharmacologically acceptable
- oleamide derivative
- Prior art date
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/02—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
- C07C233/09—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an acyclic unsaturated carbon skeleton
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
- A23L33/115—Fatty acids or derivatives thereof; Fats or oils
- A23L33/12—Fatty acids or derivatives thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
- A61P35/04—Antineoplastic agents specific for metastasis
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- 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
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C233/00—Carboxylic acid amides
- C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
- C07C233/34—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups
- C07C233/35—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom
- C07C233/38—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton
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- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/36—Compounds containing oxirane rings with hydrocarbon radicals, substituted by nitrogen atoms
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
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- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/38—Compounds containing oxirane rings with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D303/46—Compounds containing oxirane rings with hydrocarbon radicals, substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals by amide or nitrile radicals
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- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Definitions
- the present invention relates to a multimeric oleamide derivative having connexin 26 inhibitory activity and use thereof.
- These novel oleamide derivatives can be used as research reagents, and have useful physiological activities such as cancer metastasis inhibition and growth inhibition. Therefore, they include cancer prevention drugs, therapeutic drugs, medicines, supplements, and functionalities. It has various uses such as food and can be widely used in industry.
- Connexin is a general term for a family of membrane-bound proteins that constitute gap junctions. Connexins have been found in more than 12 subtypes due to their different molecular weights. Those with a molecular weight of 26 kDa are called connexin 26, and those with a molecular weight of 43 kDa are called connexin 43.
- connexon The hexamer of connexin is called connexon and forms a conduit-like structure that penetrates the cell membrane. Gap junctions connect connexons between adjacent cells, and ions and low molecular weight proteins are transferred from cell to cell through the conduit formed by this connection. This mechanism is considered essential for maintaining homeostasis of epithelial cell proliferation.
- oleamide which is an amide derivative of oleic acid, and derivatives thereof are known as substances that inhibit gap bonding (the following Non-Patent Document 2).
- the present inventors identified one of the oleamide derivatives that specifically inhibits connexin 26 and exhibits a good cancer metastasis-inhibiting activity, one of which is called “MI-18”. (Patent Document 2 below).
- Patent Documents 3 and 4 describe an example in which a dimer type oleamide derivative is used as a raw material of imidazolidine. It is also described that the product imidazolidine has growth inhibitory activity for bacteria, yeast, etc. in vitro! Speak.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-17184
- Patent Document 2 International Publication WO2004Z060398
- Patent Document 3 US Patent 3,872,120
- Patent Document 4 U.S. Pat.No. 3,875,159
- Non-patent literature l Ito, A. et al .: J. Clin. Invest., 105: 1189-1197, 2000.
- Non-patent literature 2 Boger, DL et al .: Proc. Nat. Acad. Sci. , 95: 4810 -4815. 1998.
- cancer cells metastasize very quickly, they often metastasize to other tissues during cancer treatment. As a result, treatment may be prolonged, or metastasis may spread and death may occur.
- the present inventors have identified an oleamide derivative such as Ml-18 that specifically inhibits connexin 26 and exhibits good cancer metastasis suppressing activity.
- an oleamide derivative such as Ml-18 that specifically inhibits connexin 26 and exhibits good cancer metastasis suppressing activity.
- we will search for even better substances and identify oleamide derivatives that exhibit high connexin 26 inhibitory activity and are superior in terms of ease of handling, stability, and non-toxicity. There is a need to do this.
- the oleamide derivative thus obtained is considered to be very useful as a cancer metastasis inhibitor.
- the present invention has been made in view of the above circumstances, and an object thereof is to develop a novel oleamide derivative having connexin 26 inhibitory activity.
- the present invention further provides a novel obtained
- the challenge is to provide pharmaceuticals, supplements, functional foods, and research reagents using oleamide derivatives.
- the new oleamide derivatives obtained this time can be used for drug development as anti-cancer natural metastasis drugs, anti-cancer growth drugs, etc., and also as supplements, functional foods, research reagents, etc. It was found useful, and the present invention was completed.
- the present invention includes the following inventions A) to L) as medically and industrially useful inventions.
- n is an integer of 3, 5 or 8.
- Carbon and hydrogen are omitted in accordance with conventional notation.
- the number is the number of hydrocarbon repeats.
- Et represents a jetyl group.
- n is an integer of 3 or 5.
- n is an integer of 5 or 8.
- n is an integer of 3 or 5.
- MI-50 The oleamide derivative represented by the above formula (5) is hereinafter referred to as “MI-50”.
- MI-52 The oleamide derivative represented by the above formula (6) is hereinafter referred to as “MI-52”.
- MI-51 The oleamide derivative represented by the above formula (7) is hereinafter referred to as “MI-51”.
- MI-53 The oleamide derivative represented by the above formula (8) is hereinafter referred to as “MI-53”.
- a cancer metastasis inhibitor comprising a multimeric oleamide derivative represented by any one of the above formulas (1) to (8) or a pharmacologically acceptable salt thereof as an active ingredient.
- a cancer growth inhibitor comprising as an active ingredient a multimeric oleamide derivative represented by any one of the above formulas (1) to (8), or a pharmacologically acceptable salt thereof.
- a connexin 26 inhibitor comprising a multimeric oleamide derivative represented by any one of the above formulas (1) to (8), or a pharmacologically acceptable salt thereof.
- multimeric type is used to mean a plurality of fatty acid carbon chains.
- the “dimer type” means two fatty acid carbon chains. Means.
- trimer type and tetramer type mean three and four fatty acid carbon chains, respectively.
- the oleamide derivative of the present invention that is, the multimeric oleamide derivative represented by the above formulas (1) to (8) suppresses the natural metastasis of cancer by inhibiting the function of connexin 26. It is useful as a preventive drug for cancer. In addition to pharmaceuticals, it can be used as supplements and functional foods, and as a connexin 26 inhibitor, it can be used in research reagents (biochemical reagents). Brief Description of Drawings
- FIG. 1 is a diagram schematically showing a method for synthesizing a multimeric oleamide derivative according to the present invention
- FIG. 2 is a diagram showing an example of a micrograph observed by a dye transfer assembly.
- FIG. 3 is a graph showing the results of examining connexin 26 inhibitory activity and connexin 43 inhibitory activity of multimeric oleamide derivatives according to the present invention by dye transfer assembly.
- FIG. 4 is a graph showing the results of examining the presence or absence of suppression of spontaneous metastasis of cancer by administration of MI-22.
- FIG. 5 is a diagram showing the degree of metastasis of mouse melanoma BL6 cells to the lungs of mice by administration of MI-22.
- the degree of metastasis is classified into three categories: none (upper), moderate (middle), and high frequency (lower), and a photograph of a lung during typical mouse dissection is included. The numbers indicate the number of mice that showed each degree of lung metastasis.
- FIG. 6 A graph showing that Ml 22 has no cytotoxicity under the culture conditions of Az521 cells, which are human gastric cancer cells.
- A is the result of a control in which nothing was added to the culture solution.
- b) shows the results when MI-22 was added to the culture medium.
- FIG. 7 is a graph showing that Az521 cells, which are human gastric cancer cells in nude mice, undergo growth inhibition by MI-22 administration.
- FIG. 8 is a graph showing the results of examining the antitumor effect of intraperitoneal administration of Ml-22 to nude mice transplanted subcutaneously with human gastric cancer cells.
- NT is the result of the group of subcutaneous tumor mice with no drug administration.
- the present inventors synthesized multimeric oleamide derivatives represented by the above formulas (1) to (8) by the method shown in the Examples below, and each derivative has connexin 26 inhibitory activity. Existence was examined. As a result, connexin 26 inhibitory activity was observed in all of the above derivatives (see FIG. 3).
- Connexin 43 is abundant in the central nervous system and cardiomyocytes in the connexin family, and when its function is inhibited, it is considered to have adverse effects such as arrhythmia. Therefore, when used for pharmaceutical development, it is desirable to have a property of specifically inhibiting connexin 26 without inhibiting the function of connexin 43.
- Ml-22 showed the most desirable result among the above three oleamide derivatives, so the possibility of using Ml-22 as an anti-cancer natural metastasis drug and anti-cancer growth drug was examined! went.
- the above-mentioned Ml-22 has the following characteristics, and is a substance suitable for the development of medical drugs such as anticancer natural metastasis drugs and anticancer proliferative drugs.
- the dimer structure of Ml-22 is formed by the carbon chain, it cannot be decomposed into a monomer-integrated oleamide.
- the other oleamide derivatives of the present invention are easy to be subjected to various treatments because their multimeric structures are formed by carbon chains and are not easily decomposed and hardly change.
- the above-mentioned Ml-22 and other oleamide derivatives of the present invention can be used for the development of effective cancer therapeutic agents as suppressing (inhibiting) the natural metastasis of cancer that directly reflects cancer metastasis in the living body.
- the nature is extremely high.
- the oleamide derivative of the present invention can be produced by the method described in the examples below, but the production method is of course not limited to this method, and various modifications are possible. If it is known that the oleamide derivative of the present invention exists in nature, the oleamide derivative of the present invention may be isolated and purified from a natural product, or a treatment such as a reaction is performed using a substance obtained from the natural product as a raw material. May be manufactured. If necessary, it can be produced using biological materials such as microorganisms.
- the oleamide derivative of the present invention has a connexin 26 inhibitory activity.
- connexin 26 inhibitory activity suppresses intercellular mass transfer via connexin 26 by administering the oleamide derivative of the present invention. Means that This means that the dye-tran This can be easily confirmed by investigating changes in GJIC score via connexin 26 by Spher Atsy.
- the oleamide derivative of the present invention exhibits connexin 26 inhibitory activity, it can be used as a connexin 26 inhibitor in research reagents.
- it since it has the physiological activity of specifically inhibiting connexin 26 that constitutes a gap bond, pharmaceutical development using this property can be expected.
- oleamide derivatives such as Ml-22 have strong cancer metastasis inhibitory activity and antitumor activity, they have drugs such as anticancer agents (anticancer agents), and further have anticancer activity or cancer prevention effect. It can be used as a raw material for supplements and functional foods (edible compositions).
- the present invention includes pharmacologically acceptable salts of these derivatives.
- pharmacologically acceptable salts include inorganic acid salts such as hydrofluoric acid salts and hydrochlorides, sulfates and nitrates, alkali metal salts such as sodium salts and potassium salts, sulfones. Acid salts and organic acid salts can be exemplified.
- oleamide derivative of the present invention When the oleamide derivative of the present invention or a pharmacologically acceptable salt thereof (hereinafter simply referred to as “oleamide derivative”) is used for pharmaceutical development, as one aspect thereof, the oleamide derivative of the present invention is used for drug development. It may be used as a lead compound in the process
- the oleamide derivative of the present invention can be administered to humans (or animals) as it is or as a pharmaceutical composition together with a conventional pharmaceutical preparation carrier.
- a conventional pharmaceutical preparation carrier There are no particular limitations on the dosage form of the medicinal yarn and the composition, and it may be appropriately selected according to need.
- oral preparations such as tablets, capsules, granules, fine granules, powders
- parenteral preparations such as injections, suppositories, and coating agents.
- Oral preparations such as tablets, capsules, granules, fine granules, powders and the like are commonly used, for example, using starch, lactose, sucrose, trenorose, mannitol, carboxymethylcellulose, corn starch, inorganic salts and the like.
- Manufactured according to. The blending amount of the oleamide derivative of the present invention in these preparations is not particularly limited and can be appropriately set.
- This type of formulation has Mixtures, disintegrants, surfactants, lubricants, fluidity promoters, corrigents, colorants, fragrances and the like can be appropriately used.
- a parenteral preparation the dose is adjusted according to the age, weight, degree of disease, etc. of the patient, for example, intravenous administration, intravenous infusion, subcutaneous injection, intramuscular injection and the like.
- This parenteral preparation is produced according to a conventional method, and distilled water for injection, physiological saline and the like can be generally used as a diluent.
- this parenteral preparation can be frozen after filling into a vial or the like, the water can be removed by ordinary freeze-drying treatment, and the liquid preparation can be re-prepared from the freeze-dried product immediately before use.
- an isotonic agent, stabilizer, preservative, and soothing agent may be added as necessary.
- the amount of the oleamide derivative of the present invention in these preparations is not particularly limited and can be arbitrarily set. Examples of other parenteral preparations include coating solutions for external use, ointments and the like, suppositories for rectal administration, etc., and these are also produced according to conventional methods.
- the known DDS drug delivery system
- the oleamide derivative of the present invention may be encapsulated in a carrier such as ribosome and administered in vivo.
- a carrier such as ribosome
- the oleamide derivative of the present invention can be efficiently transported to the target site.
- the oleamide derivative of the present invention can be used for foods (edible compositions) such as supplements and functional foods. That is, the oleamide derivative of the present invention is added to foods and drinks as raw materials for various beverages and various processed foods, and pellets, tablets, granules together with excipients such as dextrin, lactose, starch, fragrances, and pigments as necessary. Or coated with gelatin and molded into capsules for health foods and health foods.
- foods edible compositions
- the oleamide derivative of the present invention is added to foods and drinks as raw materials for various beverages and various processed foods, and pellets, tablets, granules together with excipients such as dextrin, lactose, starch, fragrances, and pigments as necessary. Or coated with gelatin and molded into capsules for health foods and health foods.
- Figure 1 (a) schematically shows the chemical synthesis of a dimeric oleamide derivative.
- Fig. 2 (b) schematically shows the chemical synthesis of a trimer / tetramer-type oleamide derivative.
- nuclear magnetic resonance (—NMR) spectra were measured at 300 MHz at 20-25 ° C. using tetramethylsilane as an internal standard substance.
- the infrared (IR) absorption vector was measured by the diffuse reflection method using KBr as a diluent.
- E. Merck silica gel 60 is used as the adsorbent for column chromatography, and E. Merck pre-coa to rL plates and for thin layer chromatography! siiica gel F was used.
- MI—22, ie ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ , ⁇ 7 —tetraethyl— 2,6 di [(Z) — 7 hexadeceyl] heptanediamide ( ⁇ , ⁇ ⁇ ⁇ , ⁇ 7 — Tetraethy ⁇ 2,6 — Di [(Z) — 7-hexadecenyl] heptanediamid e) was synthesized by the following method.
- NMR nuclear oil resonance
- a THF solution (12 mL) of the colorless oil (153 mg, 0.45 mmol) was cooled to 40 ° C, LDA (0.7 mL, 1.4 mmol) was added, and the mixture was stirred at 40 ° C for 0.5 hour. did. Thereafter, 1,3-diiodopropane (0.26 mL, 2.3 mmol) was added, and the mixture was stirred at ⁇ 40 ° C. for 3 hours, followed by addition of a saturated aqueous ammonium chloride solution. Next, the organic layer is separated and the aqueous layer is vinegar. Extracted with acidyl.
- the mixed organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure.
- MI—39, ie N 1 , ⁇ 1 , N 9 , N 9 —tetraethyl-2,8-di [(Z) —7-hexadecyl] nonanediamide (N ⁇ N ⁇ N ⁇ N 9 — Tetraethy ⁇ 2,8-di [(Z) -7-hexadecenyl] nonanediamide) was synthesized by the following method.
- the mixed organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure.
- the mixed organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure.
- MI- 45 i.e., N 1 - [(Z) -3- Okutadekku 9 perilla I Rua amino propyl] - (Z) 9 over O Kuta decene amide (N 1 - [(Z) - 3- Octadec- 9- enoylaminopropyl]-(Z) -9-octadecenamide) was synthesized by the following method.
- MI- 46 i.e., N 1 - [(Z) -5- Okutadekku 9 perilla I Rua Minopen chill]
- N 1 - [(Z) -5- Okutadekku 9 perilla I Rua Minopen chill] one (Z) 9 over O Kuta decene amide (N 1 - [(Z) - 5- Octadec- 9- enoylaminopentyl]-(Z) -9-octadecenamide) was synthesized by the following method.
- MI—53 that is, N 1 — (3— ⁇ [8— ⁇ (2S *, 3R *) — 3—octyl-oxyl ⁇ -octanoyl]-[4— ( ⁇ 8- [(2S *, 3R *) — 3-Octyloxylase] Otanoyl ⁇ -N- ⁇ 3- [8- ⁇ (2S *, 3R *) — 3-Octyloxylal ⁇ —Otanoylamino] —propyl ⁇ —Amino) monobutynole] —amino ⁇ —propyl) 8 ⁇ (2S *, 3R *) — 3-octyloxyl ⁇ octaneamide (N 1- (3- ⁇ [8- ⁇ (2S *, 3R * ) -3-Octyl-oxiranyl ⁇ -octanoy l]-[4-( ⁇ 8-[(2S *, 3
- HeLa cells human eclampsia squamous cell carcinoma cells
- a HeLa cell subclone that stably expresses rat connexin 26 (Cx26) (HeLa—Cx26) and a HeLa cell subclone that stably expresses rat connexin 43 (Cx43) (HeLa— Cx43) was used. All cells (including cells used in the examples described later) were cultured in Dulbecco's modified Eagle medium (DMEM) with 10% urine fetal serum (FCS) added.
- DMEM Dulbecco's modified Eagle medium
- FCS urine fetal serum
- 13 ⁇ 41126 cells and 13 ⁇ 41 ⁇ 43 cells were suspended in DMEM containing 10% FCS separately. Each cell was cultured separately for donor cells and recipient cells. Recipient cells were grown in 3 cm diameter culture dishes and adjusted to form a nearly confluent monolayer during the assembly.
- the donor cells indicated by * are displayed in yellow in the original because they contain both force Lucein (green fluorescence) and Dil (red fluorescence).
- the cell is displayed in green. Based on this assessment, the GJIC score of each test substance is evaluated as follows.
- FIG. 3 is a graph showing the results of this assembly, showing the GJIC score of each oleamide derivative.
- the black bar is the GJIC score through connexin 26
- the gray bar is the GJIC score through connexin 43.
- GJI through connexin 26 In terms of c-score, all dimeric oleamide derivatives used in the experiment showed values similar to or lower than those of oleamide and were found to have connexin 26 inhibitory activity.
- MI-52-MI-53 also had connexin 26 inhibitory activity as compared to the control, which was visually observed at the time of the assembly.
- the experiment was performed in the same manner as the method described in International Publication WO2004Z060398. That is, 1 ⁇ 10 5 BL6 cells (sub-strain of B16 mouse melanoma cells) were inoculated subcutaneously into the sole of 4 week-old C57BL Z6 mice, and then the mice were divided into the following two groups.
- Ml-22 administration group Ml-22 (1 Omg) dissolved in olive oil (1 OmL) once a day (approx. 0.2 mL) once a day to give O.OmL per lg of mouse body weight A group of mice injected intraperitoneally.
- Non-treatment (Nt) group Drug administration by injection ⁇ A group of mice with no treatment.
- the above treatment was performed every day from the day after BL6 cell inoculation, and when the tumor formed in the inoculated part grew to a diameter of about 7 mm, the foot was excised by knee joint cutting. The above treatment is carried out until 2 days later, and then the mice are raised without treatment. Four weeks after the knee amputation, the mice were euthanized and the metastatic nodules (the number of metastases to the lungs) formed on the pleural surfaces of the left and right lungs were meated. Counted visually. The evaluation was performed using 15 mice in each group.
- FIG. 4 The experimental results are shown in FIG. 4 and FIG.
- the vertical axis of the graph in Fig. 4 shows the number of metastases to the lung.
- the number of metastases was reduced by 80% compared to the untreated (Nt) group, and Ml-22 was cancerous. It was shown to significantly inhibit 'suppression' of natural metastasis.
- FIG. 5 shows a photograph of the lungs from which the mouse forces of the Ml-22 administration group and the untreated (Nt) group were also removed.
- the upper panel shows the number of lungs and mice with no spontaneous metastasis of cancer
- the middle panel shows the number of lungs and mice with some spontaneous metastasis
- the lower panel shows lungs with many natural metastases. And the number of mice.
- spontaneous metastasis of cancer occurred! / Wow!
- the number of lungs, lungs with slightly spontaneous metastases, and lungs with many natural metastases were 2, 8, and 5, respectively, compared with 7, 6, and 2 in the Ml-22 administration group. is there. As a result, it was confirmed that Ml-22 strongly inhibits / suppresses natural metastasis of cancer.
- Ml-22 is considered to be usable as a cancer metastasis inhibitor (anticancer metastasis) with few side effects.
- Az521 cells which are human gastric cancer cells, were transplanted subcutaneously in the back of nude mice, and the cancer growth inhibitory effect (antitumor effect) of Ml-22 abdominal cavity administration was investigated. More specifically, 1-2 ⁇ 10 5 Az521 cells were subcutaneously injected into the back of 4-week-old BALBZc nude mice (nuZnu). Three days before the subcutaneous transplantation, MI-22 (10 mg) dissolved in olive oil (10 mL) was injected intraperitoneally into a nude mouse at 0.1 mL. After subcutaneous implantation, Ml-22 was administered intraperitoneally in the same manner twice a week. The control group of mice was forced to perform no drug administration or treatment by injection.
- the size of the tumor formed after subcutaneous implantation was observed, and the antitumor effect of Ml-22 was evaluated by measuring the tumor weight over time. The results are shown in the graph in Fig. 7.
- the vertical axis is tumor weight (mg), and the horizontal axis is the number of days after subcutaneous transplantation. Shown is the average of 6 tumors for 3 nude mice.
- Figure 8 shows the results of examining the antitumor effect of Ml-22 administered intraperitoneally to nude mice transplanted subcutaneously with human gastric cancer cells, Az521 cells, using the same experimental method as above. It is. As shown in the figure, in mice administered with Ml-22, tumor volume enlargement was markedly suppressed compared to the untreated group of mice (NT), and the antitumor effect of Ml-22 was observed. .
- Ml-22 has outstanding features not found in conventional anticancer agents. That is, most of the conventionally developed anticancer agents utilize the feature of “higher growth ability than normal cells and preferentially inhibit the growth of cancer cells”. These are inevitably cytotoxic because they exhibit growth inhibition even for normal cells, and this has unavoidably suffered from the side effects of anticancer drugs. In contrast, Ml-22 does not show any cytotoxicity (cell growth inhibition ability) against normal cells and cancer cells cultured in petri dishes, but in vivo (here, wild mice and nude mice). The cancer cells transplanted to) showed an inhibitory effect on cell proliferation. This feature shows that Ml-22 is an unprecedented, new, and type of anticancer agent with extremely high V and novelty! / Industrial applicability
- the present invention relates to multimeric oleamide derivatives having connexin 26 inhibitory activity, and these novel oleamide derivatives can be used as research reagents, and are useful for suppressing metastasis and growth of cancer. Since it exhibits excellent physiological activity, it has various uses such as cancer preventive drugs and therapeutic drugs, pharmaceuticals, supplements, functional foods, etc., and can be widely used industrially.
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---|---|---|---|---|
WO2008016139A1 (fr) * | 2006-08-04 | 2008-02-07 | Osaka University | Dérivé fluorescent d'oléamide et ses utilisations |
JP2017501173A (ja) * | 2013-12-16 | 2017-01-12 | ユニヴェルシテ・ドゥ・ボルドー | アミド連結基を有する5員環ビスカーボネート、それらの調製、及びポリマーの調製のためのそれらの使用 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2010108108A2 (en) * | 2009-03-20 | 2010-09-23 | Egen, Inc. | Polyamine derivatives |
US9440905B2 (en) | 2012-01-23 | 2016-09-13 | Wisconsin Alumni Research Foundation | Polymerizable gemini dicarboxlate surfactants and lyotropic liquid crystals and membranes made therefrom |
WO2014075676A1 (en) * | 2012-11-15 | 2014-05-22 | V-Biotek Holding Aps | Amines from trigonella foemum - graecum |
US9394386B1 (en) | 2015-01-30 | 2016-07-19 | Wisconsin Alumni Research Foundation | Polymerizable mixtures containing ionic gemini surfactants; and lyotropic liquid crystals, polymers, and membranes made therefrom |
EP3095444A1 (en) * | 2015-05-20 | 2016-11-23 | Dublin City University | A method of treating peripheral inflammatory disease |
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US3872120A (en) * | 1971-06-18 | 1975-03-18 | Us Agriculture | Process for the preparation of 1,3-dialkanoyl hexahydropyrimidine |
JP2001017184A (ja) * | 1999-07-12 | 2001-01-23 | Igaku Seibutsugaku Kenkyusho:Kk | 癌転移能検査方法、および癌転移抑制薬のスクリーニング方法 |
JP2001523695A (ja) * | 1997-11-24 | 2001-11-27 | ザ スクリップス リサーチ インスティテュート | ギャップ結合連絡の阻害剤 |
WO2004060398A1 (ja) * | 2002-11-29 | 2004-07-22 | Japan Science And Technology Agency | コネキシン26阻害剤および癌転移抑制剤 |
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US3875159A (en) | 1971-06-18 | 1975-04-01 | Robert R Mod | 1,3-Diacyl derivatives of imidazolidine and hexahydropyrimidine |
-
2005
- 2005-11-01 WO PCT/JP2005/020089 patent/WO2006049157A1/ja active Application Filing
- 2005-11-01 JP JP2006542394A patent/JP4884231B2/ja not_active Expired - Fee Related
- 2005-11-01 US US11/718,361 patent/US7846972B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US3872120A (en) * | 1971-06-18 | 1975-03-18 | Us Agriculture | Process for the preparation of 1,3-dialkanoyl hexahydropyrimidine |
JP2001523695A (ja) * | 1997-11-24 | 2001-11-27 | ザ スクリップス リサーチ インスティテュート | ギャップ結合連絡の阻害剤 |
JP2001017184A (ja) * | 1999-07-12 | 2001-01-23 | Igaku Seibutsugaku Kenkyusho:Kk | 癌転移能検査方法、および癌転移抑制薬のスクリーニング方法 |
WO2004060398A1 (ja) * | 2002-11-29 | 2004-07-22 | Japan Science And Technology Agency | コネキシン26阻害剤および癌転移抑制剤 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008016139A1 (fr) * | 2006-08-04 | 2008-02-07 | Osaka University | Dérivé fluorescent d'oléamide et ses utilisations |
JP2017501173A (ja) * | 2013-12-16 | 2017-01-12 | ユニヴェルシテ・ドゥ・ボルドー | アミド連結基を有する5員環ビスカーボネート、それらの調製、及びポリマーの調製のためのそれらの使用 |
Also Published As
Publication number | Publication date |
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JP4884231B2 (ja) | 2012-02-29 |
JPWO2006049157A1 (ja) | 2008-05-29 |
US20080089924A1 (en) | 2008-04-17 |
US7846972B2 (en) | 2010-12-07 |
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