WO2005100581A1 - 新規イソクロマン化合物とその抗癌剤等への利用 - Google Patents
新規イソクロマン化合物とその抗癌剤等への利用 Download PDFInfo
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- WO2005100581A1 WO2005100581A1 PCT/JP2005/007003 JP2005007003W WO2005100581A1 WO 2005100581 A1 WO2005100581 A1 WO 2005100581A1 JP 2005007003 W JP2005007003 W JP 2005007003W WO 2005100581 A1 WO2005100581 A1 WO 2005100581A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
- C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
- C07D491/04—Ortho-condensed systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
Definitions
- the present invention relates to a novel isochromandy conjugate and its use.
- the novel compound of the present invention exhibits selective toxicity to human cancer cell types and can be used as a drug such as an anticancer drug, and can also be used as a functional food effective for prevention and treatment of cancer.
- a drug such as an anticancer drug
- Non-patent literature l Pietra, F. Nat. Prod. Rep. 1997, 14, 453—464
- Non-Patent Document 2 Cuomo, V .; Palomba, I .; Perretti, A .; Guerriero, A .; D 'Am brosio, M .; Pietra, F. J. Mar. Biotechnol. 1995, 2, 199
- An object of the present invention is to find a novel compound which is present in nature and exhibits a useful physiological activity.
- the present invention focuses on marine microorganisms that have not yet been sufficiently explored, It is to isolate 'identify new industrially useful compounds.
- novel compounds having an anticancer activity particularly novel compounds having a selectively high anticancer activity according to the type of cancer, and have developed anticancer drugs, medicines, functional foods and the like using the compound. Provision is also an object of the present invention.
- the present inventor has conducted intensive studies in view of the above problems, and as a result, has found that the marine microorganism Aspergillus A new isochroman compound separated and purified from Aspergillus pseudodeflectus (ie, pseudodeflectusin, described below). S It exhibits high growth inhibition selectively against human cancer cell types.
- the LDH-cytotoxicity test found that the compound exhibited cytotoxicity against cancer cells and had an effect of reducing the intracellular daltathione level, and the like, and completed the present invention. .
- the present invention includes the following inventions A) to E) as industrially and medically useful inventions.
- a compound represented by the following formula (1) that is, pseudo defiectusin: 9-hydroxy-7-methyl-2 (metnylethylidene) -furano [3, 2—H] isochroman—one—or its pharmacologically acceptable salts.
- An anticancer agent comprising a compound represented by the above formula (1) or a pharmacologically acceptable salt thereof as an active ingredient.
- a pharmaceutical composition comprising a compound represented by the above formula (1) or a pharmacologically acceptable salt thereof as an active ingredient.
- a microorganism belonging to the genus Aspergillus and having the ability to produce the compound pseudodeflectin described in A) above is cultured, and the compound pseudodeflectin is accumulated in the culture solution.
- a method for producing a compound pseudo-deflectasin which comprises collecting the same.
- the substance and its pharmacologically acceptable salt are novel anticancer substances. It can be used for pharmaceuticals, functional foods, etc.
- the isochromandiated conjugate according to the present invention has a strong growth inhibitory activity against floating cancer cells, and is therefore used as an effective anticancer agent against cancers such as leukemia (lymphomas and hematologic malignancies). Can be expected.
- the isochromandiated conjugate according to the present invention may have useful physiological activities in addition to the anticancer activity, and can be expected to have various industrial uses such as pharmaceuticals, foods, and cosmetics. It is.
- the present inventor has purified a compound from an extract of the marine microorganism Aspergillus' Aspergillus pseudodeflectus Hiji005 strain (Accession No. Analysis by NMR spectroscopy (HR-ESIMS), nuclear magnetic resonance (NMR) spectrum, 13 C-nuclear magnetic resonance spectrum, etc., revealed that the compound has a novel isochroman having the structure of the above formula (1). It was determined to be a compound, and was named "pseudodeflectusin" as a new substance obtained from Aspergillus pseudodeflectus.
- the Hiji005 strain was obtained from the National Institute of Advanced Industrial Science and Technology (AIST) at the Patent Organism Depositary Center (1-1, Higashi 1-chome, Chuo-shi, Ibaraki Prefecture, Japan). ⁇ —200008 and transferred to the International Deposit on February 9, 2005 under the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for Patent Procedure under the accession number FERM BP-10229.
- the novel isochroman compound pseudodeflectusin of the present invention can be separated and purified from naturally occurring microorganisms such as Aspergillus species, but the method for producing the compound of the present invention is not limited thereto. Alternatively, they may be produced by chemical synthesis, or may be produced by subjecting a substance obtained from a natural product to a treatment such as a reaction using the substance as a starting material.
- novel conjugation product pseudodeflectusin of the present invention selectively inhibits the growth of human cancer cell types (cell lines), and thus can be expected to be an anticancer agent with few side effects. Furthermore, as an anticancer drug having a novel function, a synergistic effect of cancer treatment is expected when used in combination with existing anticancer drugs.
- pseudodeflectusin When the cytotoxicity of the above pseudodeflectusin was examined by LDH-cytotoxicity test, the pseudodeflectusin showed strong cytotoxicity against HeLa cells, which are cancer cells (see Fig. 2). In addition, pseudodeflectusin had the effect of reducing the amount of intracellular glutathione on HeLa cells (see FIG. 3). Intracellular daltathione has also been reported to be associated with resistance to apoptosis inducer ⁇ anti-cancer agents, suggesting that a decrease in intracellular daltathione level may lead to the development of cytotoxicity.
- the novel compound pseudodeflectusin of the present invention induced cell death. It is also useful as an apoptosis inducer.
- the novel compound of the present invention may also have useful physiological activities, and can be expected to be used in various industries such as pharmaceuticals, foods, and cosmetics.
- the novel compounds of the present invention can also be used as biochemical reagents and the like.
- the present invention also includes a pharmacologically acceptable salt of the pseudodeflectusin.
- pharmacologically acceptable salts include hydrohalides such as hydrofluoride and hydrochloride, and sulfates. And inorganic salts such as nitrates, alkali metal salts such as sodium salts and potassium salts, sulfonates, and organic acid salts.
- the compound of the present invention when used for a drug, as an embodiment, the compound of the present invention may be used as a lead compound in a drug development process. Good.
- the compound of the present invention or a pharmacologically acceptable salt when used as a pharmaceutical, it may be used alone or in combination with a pharmaceutically acceptable additive such as an excipient, a diluent, and a solubilizing agent. It is safely administered orally or parenterally (systemic administration, topical administration, etc.) in the form of powders, granules, tablets, cablets, capsules, injections, suppositories, ointments and the like. The dosage varies depending on the route of administration, the age of the patient and the actual condition to be prevented or treated. For example, when administered orally to an adult, the daily dose of the active ingredient is 0.01 mg to 2000 mg, preferably 0.1 mg to: LOOOmg and can be administered once or several times a day.
- a pharmaceutically acceptable additive such as an excipient, a diluent, and a solubilizing agent.
- Oral preparations such as tablets, capsules, granules, fine granules, powders and the like can be prepared in a conventional manner using, for example, starch, lactose, sucrose, trenodulose, mannitol, carboxymethylcellulose, corn starch, inorganic salts and the like. It is manufactured according to. In this type of preparation, a binder, a disintegrant, a surfactant, a lubricant, a fluidity promoter, a flavoring agent, a coloring agent, a flavor, and the like can be appropriately used.
- parenteral preparations the dosage is adjusted according to the patient's age, body weight, degree of disease, and the like, and is administered by, for example, intravenous injection, intravenous drip infusion, subcutaneous injection, intramuscular injection, and the like.
- This parenteral preparation is manufactured according to a conventional method, and distilled water for injection, physiological saline and the like can be generally used as a diluent. Further, if necessary, a bactericide, a preservative, and a stabilizer may be added. In addition, from the viewpoint of stability, this parenteral preparation is frozen after filling in vials and the like, and is usually freeze-dried.
- the liquid can be prepared again from the freeze-dried product immediately before use by removing water by the treatment. Further, if necessary, an isotonic agent, a stabilizer, a preservative, and a soothing agent may be added.
- an isotonic agent, a stabilizer, a preservative, and a soothing agent may be added.
- the amount of the compound of the present invention in these preparations is not particularly limited and can be set arbitrarily.
- parenteral preparations examples include liquid preparations for external use, coating preparations such as ointments, suppositories for rectal administration, and the like, which are also produced according to a conventional method.
- the content of the compound of the present invention or the pharmacologically acceptable salt in the preparation varies depending on the preparation, but is usually 0.1 to: LOO% by weight! / ,.
- the compound of the present invention may be encapsulated in a carrier such as ribosome and administered in vivo using a known DDS (drug delivery system)! /.
- a carrier or the like that specifically recognizes a cancer cell or the like at the target site is used, the compound of the present invention can be efficiently transported to the target site, which is effective.
- the compound of the present invention When the compound of the present invention is used in foods (edible compositions), the compound of the present invention is added to foods and drinks as a raw material for various drinks and various processed foods, and dextrin, lactose, starch, etc. It can be processed into pellets, tablets, granules, etc., together with excipients, flavors, pigments, etc., or coated with gelatin or the like and molded into capsules to be used as health foods or health foods.
- Example 1 Isolation of a novel isochromandiy conjugate of the marine microbial power parasitic on seaweed 'Extraction of the novel isochromandiy conjugate of the present invention from purified marine microorganisms parasitic on the following procedure' Purified and its structure was determined.
- seaweed (Sargassum fusiforme) collected from Izu Miura Peninsula was washed with sterile water !, cut into small pieces, and immersed in 3.6% saline, and then immersed in Difco's potato dextrose agar medium; Then,
- 3 ⁇ 4 (Aspergillus pseudodeflectus 3 ⁇ 4amon & Mouchacca: the same as Aspergillus pseudodeflectus Hiji005 strain described above (accession number FERM BP-10229)) was isolated. The isolated strain was further cultured in a potato dextrose medium (24 gZL) in the dark and in a stationary state for three weeks. After that, 4 L of the culture solution was filtered through a Buchner funnel. After removing the cells, extraction was performed with methylene chloride to obtain 424.3 mg of a crude extract from the organic layer.
- the fraction A contained Compound 2 (7-methyl-2- (1-methylethylethlidene) -furo [3,2-H] having the chemical structure of the following formula (2). isoquinoiine-3-one) was identified.
- Compound 2 is described in Kohno, J .; Hiramatsu, H .; Nishio, M .; Sakurai, M .; Okuda, T .; Komatsubara, S. Tetrahedron 1999, 55, 11247. V, reported as TMC-120B isolated from Aspergillus urtus !, identical to the structure of the substance and was a known substance. In the examples described below, this compound 2 was used in order to compare the physiological activity with the compound 1.
- Example 3 Compound 1 and Compound 2 Inhibit Growth of Human-Derived Cancer Cells
- FIG. 1 is a graph showing the results of the above experiments.
- black circles indicate the results of Compound 1
- white circles indicate the results of Compound 2.
- (A) to (c) are the results of human-derived cancer cell lines NUGC-3, HeLa, and HL-60, respectively.
- Compound 1 exerts a cell growth inhibitory effect on three types of human cancer cell lines, NUGC-3, HeLa, and HL-60, in a concentration-dependent manner. Among them, HL-60 has a 50% inhibitory concentration. It was most strongly inhibited at 39 M.
- Compound 1 is considered to have selectivity for human-derived cancer cell types.
- Compound 2 exerted no growth inhibition on all human-derived cancer cell lines.
- LDH activity in the culture supernatant and the total LDH amount of the remaining cells were measured. Thereby, both cell death during cell culture and cell growth inhibition can be measured.
- LDH activity was measured using LDH-Cytotoxicity Test Co., Ltd. of Wako Pure Chemical Industries, Ltd. Assuming that the total LDH amount was 100%, the LDH activity released in the culture supernatant of the cells cultured in the presence and absence of Compound 1 (control) was shown as a percentage of the total LDH amount (see FIG. 2).
- Intracellular daltathione was measured by an enzymatic cycling method. After adding Compound 1 to the medium and culturing the HeLa cells for 48 hours, the cells were collected and a crude cell extract was prepared using a 5% TCA solution. The crude cell extract was neutralized with 0.5N NaOH, and the reaction solution (dissolved in 0.2 mM DTNB, 0.3 mM NADPH, 1.5 mU glutathione reductase, and IM phosphate buffer (pH 7.5)) was dissolved. The reaction was started by the addition, and the rate of change in absorbance at 405 nm was measured. The amount of daltathione was determined by calculating the calibration linear force.
- FIG. 3 shows the experimental results. As shown in the figure, assuming that the total intracellular GSH content in the control group (without carbohydrate added with i-Danied compound 1) was 100%, the cells added with compound 1 reduced to about 70%. Intracellular daltathione has also been reported to be associated with resistance to apoptosis inducers and anticancer agents, suggesting that a decrease in intracellular daltathione leads to the development of cytotoxicity! /.
- the present invention relates to a novel isochromandy conjugate, which can be used as an anticancer agent as described above, and can be industrially used as a drug, food, and biochemical reagent. It can be widely used.
- FIG. 1] (a) to (c) are graphs showing the results of examining the growth inhibitory effects of the novel isochroman compounds of the present invention on human-derived cancer cell lines NUGC-3, HeLa, and HL-60, respectively. is there. Each data is the average of four independent experiments.
- FIG. 2 is a graph showing the results of examining the cytotoxicity of the novel isochromandiated conjugate of the present invention by an LDH-cytotoxicity test. Data are the average of four independent experiments.
- FIG. 3 is a graph showing the results of examining whether the amount of intracellular daltathione was reduced by the novel isochromandy conjugate of the present invention. Data are the average of four independent experiments.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmacology & Pharmacy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Animal Behavior & Ethology (AREA)
- General Chemical & Material Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
Description
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Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-117323 | 2004-04-12 | ||
| JP2004117323 | 2004-04-12 | ||
| JP2004123491A JP2007223902A (ja) | 2004-04-12 | 2004-04-19 | 新規イソクロマン化合物とその抗がん剤等への利用 |
| JP2004-123491 | 2004-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005100581A1 true WO2005100581A1 (ja) | 2005-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/007003 Ceased WO2005100581A1 (ja) | 2004-04-12 | 2005-04-11 | 新規イソクロマン化合物とその抗癌剤等への利用 |
Country Status (2)
| Country | Link |
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| JP (1) | JP2007223902A (ja) |
| WO (1) | WO2005100581A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111499649A (zh) * | 2020-05-22 | 2020-08-07 | 自然资源部第三海洋研究所 | 一种具有抗肿瘤活性的苯并二呋喃酮类化合物、制备方法及其用途 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2720184C (en) | 2008-03-31 | 2017-07-18 | Boston Medical Center Corporation | Predictive marker for topoisomerase i inhibitors |
| JP5268461B2 (ja) * | 2008-07-14 | 2013-08-21 | Meiji Seikaファルマ株式会社 | Pf1364物質、その製造方法、生産菌株、及び、それを有効成分とする農園芸用殺虫剤 |
| WO2014070233A1 (en) | 2012-10-29 | 2014-05-08 | Boston Medical Center Corporation | Brca1 mutations as predictive markers for topoisomerase i inhibitors |
-
2004
- 2004-04-19 JP JP2004123491A patent/JP2007223902A/ja active Pending
-
2005
- 2005-04-11 WO PCT/JP2005/007003 patent/WO2005100581A1/ja not_active Ceased
Non-Patent Citations (3)
| Title |
|---|
| CUTLER H. ET AL: "Pergillin: a nontoxic fungal metabolite with moderate plant growth inhibiting properties from Aspergillus ustus.", JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY., vol. 28, no. 5, 1980, pages 989 - 991, XP002989561 * |
| KOHNO J. ET AL: "Structures of TMC-120A, B and C, Novel Isoquinoline Alkaloids from Aspergillus ustus TC 1118.", TETRAHEDRON., vol. 55, 1999, pages 11247 - 11252, XP004175471 * |
| OGAWA A. ET AL: "Pseudodeflectusin, a novel isochroman derivative from Aspergillus pseudodeflectus a parasite of the see weed, Sargassum fusiform, as a selective human cancer cytotoxin.", BIOORGANIC & MEDICINAL CHEMISTRY LETTERS., vol. 14, 2004, pages 3539 - 3543, XP002989560 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111499649A (zh) * | 2020-05-22 | 2020-08-07 | 自然资源部第三海洋研究所 | 一种具有抗肿瘤活性的苯并二呋喃酮类化合物、制备方法及其用途 |
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| Publication number | Publication date |
|---|---|
| JP2007223902A (ja) | 2007-09-06 |
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