WO2010076358A1 - Análogos sintéticos de merosesquiterpenos y compuestos relacionados con actividad antitumoral - Google Patents
Análogos sintéticos de merosesquiterpenos y compuestos relacionados con actividad antitumoral Download PDFInfo
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- WO2010076358A1 WO2010076358A1 PCT/ES2009/000606 ES2009000606W WO2010076358A1 WO 2010076358 A1 WO2010076358 A1 WO 2010076358A1 ES 2009000606 W ES2009000606 W ES 2009000606W WO 2010076358 A1 WO2010076358 A1 WO 2010076358A1
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- prodrugs
- merosquiterpenes
- homoquiral
- derivatives
- acceptable salts
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
Definitions
- the invention relates to the useful antitumor pharmacological properties of new synthetic compounds of merosquiterpenic structure and related compounds, similar to marine metabolites of the puupehenone type against solid tumors, such as breast cancers, neuroblastomas, lung, colorectal, liver and pancreas , and against acute and chronic myeloproliferative syndromes in both humans and animals.
- the invention relates to pharmaceutical formulas comprising said compounds in their pharmacological use.
- Cancer is a set of diseases characterized by the existence of an abnormal proliferation of cells. What confers the characteristic of malignancy to this cell proliferation is its ability to invade organs and tissues and spread at a distance.
- cancer In absolute terms, cancer is the leading cause of death in Spain, with 94,100 deaths in 2003 (59,500 in men and 34,600 in women), which accounted for 25.6% of all deaths.
- Breast carcinoma is the most prevalent cancer in women, although it also occurs in men. It is estimated that 216,000 women have manifested the disease in the European Union during the year 2000 [Tyczynski JE, Bray F, Parkin DM. Breast cancer in Europe. ENCR Fact Sheets of the International Agency for Research on Cancer. (2002) VoI. 2].
- Lung cancer is the leading cause of death in men of the European Union, and the third in women. In that territory, lung cancer had an estimated mortality of 171,990 men and 64,100 women during 2006.
- the treatment of cancer in general depends on a large number of factors, the main strategies being surgery, radiotherapy, chemotherapy, photodynamic therapy and some that are in the experimental phase such as gene therapy.
- tamoxifen, taxanes, paclitaxel and doxorubicin are used in breast cancer [Glück S. Adjuvant chemotherapy for early breast cancer: optimal use of epirubicin. Oncologist (2005); 10 (10): 780-91].
- adjuvant chemotherapy in lung cancer cisplatin and taxol-carboplatin, cisplatin-vinorelbine, cisplatin-docetaxel and carboplatin-docetaxel can be used.
- second-line chemotherapeutic agents we will highlight docetaxel, premetrexed and epidermal growth factor receptor (EGFR) inhibitors such as erlotinib and gefitinib.
- EGFR epidermal growth factor receptor
- bevacizumab a monoclonal antibody that blocks the endothelial vasculature growth factor has been used in combination with paclitaxel and carboplatin [from Cos Escu ⁇ n JS, Delgado IU, Rodr ⁇ guez JC, López MJ, Vicente CD, Miranda JA. Stage IHA and IHB non-small cell lung cancer: results of chemotherapy combined with radiation therapy and analysis of prognostic factors. Arch Bronconeumol (2007). 43 (7): 358-65]. In colon cancer, it has been shown that the chemotherapeutic drug 5-fluorouracil increases the possibility of cure in certain patients.
- the invention claims the anti-tumor properties against solid tumors, such as breast, neuroblastoma, lung, colorectal, liver and pancreas cancers, and against acute and chronic myeloproliferative syndromes in both humans and animals, of compounds synthetics that have a merosquiterpenic structure related to marine metabolites of the puupehenone type.
- solid tumors such as breast, neuroblastoma, lung, colorectal, liver and pancreas cancers
- acute and chronic myeloproliferative syndromes in both humans and animals of compounds synthetics that have a merosquiterpenic structure related to marine metabolites of the puupehenone type.
- the general formulas, 1 and 2 of the families of compounds that exhibit antitumor activity are:
- R 1 and R 2 independently represent a group selected from -R, -CHO, - CH 2 OH, -CH 2 OR, -CH 2 OCOCH 3 , -COOH, -COR, -COOR, -OCHO, -OCOCH 3 , -OH, - OR, where -R represents a linear or branched C 1 -C 4 alkyl group, or aryl.
- R 3 represents a group selected from -R, -CHO, -CH 2 OH, -CH 2 OR, - CH 2 OCOCH 3 , -COR, -COOH, -COOR (where -R represents a C 1 -C alkyl group 4 linear or branched, or aryl), when the double bond is endocyclic, and R 3 represents a methylene group or an oxygen when the double bond is exocyclic.
- R 1 and R 2 independently represent a group selected from -R, -CHO, - CH 2 OH, -CH 2 OR, -CH 2 OCOCH 3 , -COR, -COOH, -COOR, -OCHO, -OCOCH 3 , -OH, - OR, where -R represents a linear or branched C 1 -C 4 alkyl group, or aryl.
- R 3 represents a group selected from -R, -CHO, -CH 2 OH, -CH 2 OR, - CH 2 OCOCH 3 , -COR, -COOH, -COOR (where -R represents a C 1 -C alkyl group 4 linear or branched, or aryl), when the double bond is endocyclic, and R 3 represents a methylene group or an oxygen when the double bond is exocyclic.
- R 4 , R 5 independently represent a group selected from -H, -OH, -R, -OR and halogen, where -R represents a linear or branched C 1 -C 4 alkyl or aryl group.
- the present invention focuses on the use of said compounds, in their appropriate therapeutic amounts and through any method or means of administration, in the antitumor therapy both for the treatment and for the prophylaxis of cancer.
- the claim extends to the pharmaceutical formulas used for the treatment of cancer that comprise the use of at least one of the compounds of the invention, independently of the rest of active components or of the excipients that are part of said medicament or pharmaceutical formula.
- the present invention also contemplates the derivatives and prodrugs of the member compounds of the families object of the invention, as well as the chemical forms of salts, combinations with acids and bases of said compounds.
- epithelial cell line derived from an adenocarcinoma of the human mammary gland, of a 69 year old Caucasian patient.
- the cells express estrogen receptors and the WNT7B oncogene, and among the cellular products they produce are insulin-type factor binding proteins, BP-2, BP-4 and BP-5.
- the cell line is cataloged in the ATCC (American Type Culture Collection) under the code HTB-22.
- cell line of epithelial morphology isolated from a pulmonary metastasis of a colorectal carcinoma of a 72-year-old patient.
- the cells of this line have receptors for a large group of hormones and neurotransmitters, and among the cellular products that express are the carcinoembryonic antigen (CEA) and the keratin.
- CEA carcinoembryonic antigen
- the line is cataloged in the ATCC with the code CCL-248.
- - A549 cell line that was established in 1972 from an explant from carcinomatous lung tissue of a 58-year-old Caucasian patient. They are characterized by producing keratin. Its ATCC code is CCL-185.
- the 3 cell lines were obtained through the Cell Culture Service of the Center of Scientific Instrumentation of the University of Granada.
- the modified Dubelcco ' s Eagle (DMEM) medium (Gibco, USA) (13.37 g of base medium) was used, supplemented with 10% of inactivated fetal bovine serum ( Sigma Chemical co., St. Louis, MO, USA) in heat wet at 56 ° C for 30 minutes.
- the medium was buffered with 27 ml of 7.5% NaHCO 3 , and 10 ml Hepes buffer (Sigma Chemical co., St.
- the culture of the T-84 line a mixture with a 1: 1 ratio of the previous culture medium and Ham F12 was used, and the final amount of inactivated bovine fetal serum was 5%.
- the culture medium was prepared, it was filtered with sterile 0.22 ⁇ m Millex filters (Millipore, France) and stored in sterile bottles.
- the cells had to be reseeded in new Falcon containers, as cell confluence was reached. To do this, the cells were washed twice with PBS (Phosphate Saline Buffer, Sigma Chemical Co., St. Louis, MO, USA), with a volume of 0.2 ml / cm 2 , and detached with 0.1 ml / cm 2 of trypsin-EDTA (0.25% Trypsin, 0.02% EDTA in PBS, Sigma Chemical co., St. Louis, MO, USA).
- PBS Phosphate Saline Buffer
- trypsin-EDTA 0.25% Trypsin, 0.02% EDTA in PBS, Sigma Chemical co., St. Louis, MO, USA.
- the action of trypsin was blocked by adding the corresponding culture medium with fetal serum. After centrifuging, the cell pellet was resuspended in sterile culture medium and after counting the total number of cells with Neubauer chamber, the pellets were diluted to obtain a concentration of 2 x 10 4 cells / ml, which were arranged in New culture jars.
- Method of cell freezing For cell freezing, the cells were detached from the surface of the culture bottles by means of the protocol described above, until obtaining a cell pellet that was resuspended in the freezing medium at a rate of 0.5 x 10 6 cells per ml, being introduced immediately in cryotubes and these in the freezer at -8O 0 C for 24 h, to then be finally stored in liquid nitrogen.
- the freezing medium used consisted of fetal bovine serum (Sigma Chemical co., St. Louis, MO, USA) inactivated wet heat at 56 0 C for 30 min, and dimethylsulfoxide (DMSO) 10%.
- fetal bovine serum Sigma Chemical co., St. Louis, MO, USA
- DMSO dimethylsulfoxide
- the cryotubes were taken out of the liquid nitrogen container and placed in a bucket of water at 37 0 C. Once the cryotube was thawed, it was rinsed with 70% alcohol and opened in sterile conditions. The content of the cryotubes was resuspended in a sterile culture medium at 37 ° C, washed twice with fresh medium to remove the remains of DMSO and a Neubauer chamber count was performed, in order to obtain a cell suspension with a concentration of 2 x 10 4 cells / mi, which was finally planted in new culture bottles.
- the treatment of the cell lines was developed following the following protocol: cells of the different lines were detached from the culture surface with a trypsin-EDTA mixture (0.25% Trypsin, 0.02% EDTA in PBS, Sigma Chemical co ., St. Louis, MO, USA), washed, resuspended in culture medium and counted by Neubauer chamber, as described above. They were then seeded in sterile 24-well plates at a rate of 5 x 10 3 cells per well in a final volume of 1mL of the corresponding culture medium. After 24 hours of incubation in a CO 2 oven, the culture medium was changed and increasing concentrations of the compounds to be tested were added, ranging from 0.1 to 60 ⁇ M. The control group did not receive any dose of compound. The plates were then allowed to incubate 72 hours and the medium was changed again and a new compound added. After another 72h, the induction time with the compounds was terminated. 7. Method for determining the value of the inhibitory concentrations 50 (CUn) of the compounds.
- the culture medium was aspirated from the plates.
- the cells were fixed by adding 300 ⁇ l_ of trichloroacetic acid (Sigma Chemical co., St. Louis, MO, USA) to 10% cold (4 0 C) in each of the wells, and left in Ia refrigerator at 4 0 C for 30 minutes. 3. Then 3 washes were performed with distilled water and the plates were allowed to dry.
- trichloroacetic acid Sigma Chemical co., St. Louis, MO, USA
- the cells were stained with 500 ⁇ L / well of 0.4% SRB in 1% acetic acid for 20 min at room temperature.
- the SRB bound to the cells was solubilized with 500 ⁇ L / well of a 1OmM Tris-base solution (pH 10.5) with gentle agitation.
- optical density values obtained in a Multiskan-Ex (Thermo Scientific) plate reader were transformed into the corresponding cell number value, using a previously adjusted regression line, considering known values of cell numbers and their resulting optical densities.
- Table 4 shows the Cl 50 values of the compounds that exemplify the invention:
- the number 6 resulted in the best activity value of all the compounds evaluated in the three lines.
- the result obtained with MCF-7 has been the most active, with a value of 0.35 ⁇ 0.10 ⁇ M, of the order of 5 times more potent than the result achieved with a positive control, established by treating cells of Ia same cell line with the antitumor drug 5-Fluorouracil.
- Another object of this invention would be the manufacture of a medicament or pharmaceutical formula comprising any of the compounds mentioned for the treatment of cancer, especially for the treatment of breast cancer, lung cancer and colorectal cancer.
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- Alternative & Traditional Medicine (AREA)
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Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201050019A ES2355786B1 (es) | 2008-12-30 | 2009-12-30 | Análogos sintéticos de merosesquiterpenos y compuestos relacionados con actividad antitumoral. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESP200900078 | 2008-12-30 | ||
| ES200900078 | 2008-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010076358A1 true WO2010076358A1 (es) | 2010-07-08 |
Family
ID=42309866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/ES2009/000606 Ceased WO2010076358A1 (es) | 2008-12-30 | 2009-12-23 | Análogos sintéticos de merosesquiterpenos y compuestos relacionados con actividad antitumoral |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2010076358A1 (es) |
-
2009
- 2009-12-23 WO PCT/ES2009/000606 patent/WO2010076358A1/es not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| A F BARRERO ET AL.: "Synthesis and antitumor activity of Puupehedione and related compounds", TETRAHEDRON, vol. 55, 1999, pages 15181 - 15208. * |
| E PEREZ-GARCIA ET AL.: "Merosesquiterpenes from two sponges of the genus Dysidea", JOURNAL OF NATURAL PRODUCTS, vol. 68, no. 5, 2005, pages 653 - 658 * |
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