EP3217969A1 - Composition antimétastatique comprenant au moins un composé de type flavanol - Google Patents
Composition antimétastatique comprenant au moins un composé de type flavanolInfo
- Publication number
- EP3217969A1 EP3217969A1 EP15801354.0A EP15801354A EP3217969A1 EP 3217969 A1 EP3217969 A1 EP 3217969A1 EP 15801354 A EP15801354 A EP 15801354A EP 3217969 A1 EP3217969 A1 EP 3217969A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- composition
- catechin
- flavanol
- use according
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/35—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom
- A61K31/352—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having six-membered rings with one oxygen as the only ring hetero atom condensed with carbocyclic rings, e.g. methantheline
- A61K31/353—3,4-Dihydrobenzopyrans, e.g. chroman, catechin
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- 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
- A23L33/105—Plant extracts, their artificial duplicates or their derivatives
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- 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
- A23L33/16—Inorganic salts, minerals or trace elements
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- 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
- A23L33/17—Amino acids, peptides or proteins
- A23L33/175—Amino acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
- A61K31/195—Carboxylic acids, e.g. valproic acid having an amino group
- A61K31/197—Carboxylic acids, e.g. valproic acid having an amino group the amino and the carboxyl groups being attached to the same acyclic carbon chain, e.g. gamma-aminobutyric acid [GABA], beta-alanine, epsilon-aminocaproic acid or pantothenic acid
- A61K31/198—Alpha-amino acids, e.g. alanine or edetic acid [EDTA]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/335—Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin
- A61K31/365—Lactones
- A61K31/375—Ascorbic acid, i.e. vitamin C; Salts thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- 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
Definitions
- Antimetastatic composition comprising at least one flavanol-type compound
- the present invention relates to a composition comprising at least one flavanol-type compound for use as a medicament.
- Catechins are phytochemical molecules known for their antioxidative and chemoprotective properties. They are present in a large part of plant foods and in high concentrations in tea leaves. Epidemiological studies demonstrating the anti-carcinogenic effect of fruits and green tea have prompted investigations into their anti-tumorigenic activity. Nevertheless, their common general structure, important differences in their biochemical characteristics and the consequences of these on the bioavailability and stability of these compounds have meant that the results observed in vitro were not always representative.
- the anti-metastatic activity of a composition comprising at least one flavanol-type compound is suggested in the Menon et al. (Cancer Letters 1999, 141: 159-165). This article indicates that melanoma cell invasion is inhibited in mice injected intravenously with cancer cells when treated with catechin, a flavanol-like compound. This study specifically proposes that the inhibition of melanoma cell invasion is due to a catechin inhibitory activity on the action of metalloproteinases, which would block the degradation of the connective tissue by these enzymes and what This would prevent tumor cells from entering a healthy organ and forming metastases.
- metastatic progenitor cells that is to say the cells causing the metastases
- the metabolic pathways controlling the dissemination of tumor cells during the metastatic process are still poorly understood.
- increased production of superoxide radicals by metastastic progenitor cells has been shown to promote their migration.
- ROS superoxide radical and reactive species derived from oxygen
- antioxidants targeting selectively mitochondes of these cells as inhibitors of mitochondrial superoxide production.
- inhibitors such as triphenylphosphonium salts of quinone (mitoQ) or piperidine-derived (mitoTEMPO) molecules are currently used, the triphenylphosphonium group permitting the penetration of these products into the mitochondes.
- mitoQ quinone
- mitoTEMPO piperidine-derived
- non-targeted general antioxidants for mitochondria may promote tumor growth (Porporato PE and Sonveaux P, Mol Cell Oncol, 2015; 2: DOI 10.4161 / 23723548.2014.968043) and metastatic spread (Piskounova et al., Nature 2015 doi: 10.1038 / nature15726; Gai et al., Sci Transi Med. 2015; 7: 308re8).
- the present invention relates to a composition
- a composition comprising at least one flavanol compound which is characterized in that said at least one flavanol compound is present in the form of a complex formed by establishing coordination bonds with at least one basic amino acid or at least one derivative of a basic amino acid.
- it is therefore a molecular complex formed between a flavanol-type compound and at least one basic amino acid or at least one derivative of a basic amino acid by establishing coordination bonds.
- the present invention relates to a composition
- a composition comprising at least one flavanol-type compound for use in the preventive and / or curative treatment of cancer metastases, characterized in that said at least one flavanol-type compound is present under the form of a complex formed by establishing coordination bonds with at least one basic amino acid or at least one derivative of a basic amino acid.
- the composition is characterized in that said flavanol compound is selected from the group consisting of (+) - catechin, (-) - catechin, (+) - epicatechin, (-) - epicatechin, (+) - epigallocatechin, (-) - epigallocatechin, (+) - epicatechin gallate, (-) - epicatechin gallate, (+) - gallocatechin, (-) - epicatechin, (-) - ) -Gallocatechin, (+) - gallocatechin gallate, (-) - gallocatechin gallate, and mixtures thereof.
- said flavanol compound is catechin or a catechin derivative.
- the composition is characterized in that said complex has a molar equivalence ratio between said flavanol-type compound and said at least one basic amino acid or said at least one derivative of a basic amino acid between 1: 0.25 and 1: 5, preferably between 1: 1 and 1: 4, preferably between 1: 1 and 1: 3, preferably between 1: 1 and 1: 2.5, more preferably between 1: 1 and 1: 2.
- the composition is characterized in that said complex has a molar equivalence ratio between said flavanol-type compound and said at least one basic amino acid or said at least one d-derivative. a basic amino acid of from 1: 2 to 1: 4, such as 1: 2.
- the composition is characterized in that said at least one basic amino acid is selected from the group consisting of lysine, arginine, ornithine, citruline, histidine, pyrolysine, tryptophan, proline, and mixtures thereof.
- said at least one basic amino acid is lysine.
- the composition is characterized in that it further comprises at least one acid.
- said at least one acid is selected from the group consisting of ascorbic acid, acetic acid, citric acid, hydrochloric acid, and mixtures thereof.
- the composition is characterized in that said at least one flavanol compound present in the form of a complex is present in a molar concentration of between 0.01 ⁇ and 5000 ⁇ , preferably between 0. , 02 ⁇ and 2500 ⁇ , preferably between 0.1 ⁇ and 1000 ⁇ , preferably between 0.5 ⁇ and 500 ⁇ .
- the composition is characterized in that it further comprises one or more biocompatible excipients.
- the composition is characterized in that it is in liquid form or in solid form, preferably in water-soluble solid form such as powder or a tablet or an egg or suppository.
- the composition is characterized in that it is formulated for oral, rectal, vaginal, injectable or cutaneous use.
- the composition is characterized in that the content of at least one flavanol-like compound present in the form of a complex formed by establishing coordination bonds with at least one basic amino acid or at least one derivative a basic amino acid is between 15 and 95% by weight relative to the total weight of said composition, preferably between 60 and 90%, advantageously from 65 to 85% relative to the total weight of said composition.
- the composition is characterized in that 0.01 molar solution at 25 ° C, it has a pH equal to or greater than 3, preferably between 4 and 1 1, advantageously between 4 , 5 and 9. In a preferred embodiment, it has a pH of between 7.2 and 7.4,
- the cancer is cancer of the liver, prostate, breast, uterus, testes, bladder, kidneys, lungs, bronchi, bones, mouth, the esophagus, stomach, pancreas, colon-rectum, or brain.
- the cancer is a hepatocellular cancer.
- the cancer is leukemia, myeloma, lymphoma, or melanoma.
- the invention relates to an antimetastatic composition
- an antimetastatic composition comprising at least one flavanol-type compound for use as a medicament, characterized in that said at least one flavanol-type compound is present in the form of a complex formed by establishment. coordinating bonds with at least one basic amino acid or at least one derivative of a basic amino acid.
- the composition is characterized in that said at least one flavanol compound present in the form of a complex is present in a molar concentration of between 0.01 ⁇ and 5000 ⁇ , preferably between 0. , 02 ⁇ and 2500 ⁇ , preferably between 0.1 ⁇ and 1000 ⁇ , preferably between 0.5 ⁇ and 500 ⁇ .
- the composition is characterized in that said flavanol compound is selected from the group consisting of (+) - catechin, (-) - catechin, (+) - epicatechin, (-) - epicatechin, (+) - epigallocatechin, (-) - epigallocatechin, (+) - epicatechin gallate, (+) - epicatechin gallate, (+) - gallocatechin, (-) - epicatechin, (+) - gallocatechin gallate, (+) - gallocatechin gallate, (-) - gallocatechin gallate, (+) - gallocatechin gallate, (-) - gallocatechin gallate and mixtures thereof.
- the composition is characterized in that said at least one basic amino acid is chosen in the group consisting of lysine, arginine, ornithine, citruline, histidine, pyrolysine, proline, and tryptophan, and mixtures thereof.
- the composition is characterized in that said complex has a molar equivalence ratio between said flavanol-type compound and said at least one basic amino acid or said at least one derivative of a basic amino acid between 1: 0.25 and 1: 5, preferably between 1: 1 and 1: 4, preferably between 1: 1 and 1: 3, preferably between 1: 1 and 1: 2.5, more preferably between 1: 1 and 1: 2.
- the composition is characterized in that it further comprises one or more biocompatible excipients. In one embodiment, the composition is characterized in that it may further comprise an acid. In one embodiment, the composition is characterized in that said acid is selected from the group consisting of ascorbic acid, acetic acid, citric acid, hydrochloric acid, and mixtures thereof. In one embodiment, the composition is characterized in that it is in liquid form or in solid form, preferably in water-soluble solid form such as powder or a tablet or an egg or suppository. In one embodiment, the invention comprises the composition as described above for oral, rectal, vaginal, injectable or cutaneous use.
- the composition is characterized in that the content of at least one flavanol-like compound present in the form of a complex formed by establishing coordination bonds with at least one basic amino acid or at least one derivative of a basic amino acid is between 15 and 95% by weight relative to the total weight of said composition, preferably between 60 and 90%, advantageously from 65 to 85% relative to the total weight of said composition.
- the composition is characterized in that, in 0.01 molar solution at 25 ° C., it has a pH equal to or greater than 3, preferably between 4 and 1 1, advantageously between 4 , 5 and 9.
- the invention relates to the composition as described above for the preventive and / or curative treatment of cancers of the liver, prostate, breast, uterus, testes, bladder, kidneys, lungs, bronchi, bones, mouth, esophagus, stomach, pancreas, colon-rectum or brain.
- the invention relates to the composition as described above for the preventive and / or curative treatment of cancer, preferably hepatocellular cancer.
- the invention relates to the composition as described above for the preventive and / or curative treatment of leukemias.
- the invention relates to the composition as described above for the preventive and / or curative treatment of myelomas.
- the invention relates to the composition as described above for the preventive and / or curative treatment of lymphomas. In one embodiment, the invention relates to the composition as described above for the preventive and / or curative treatment of melanomas. The invention also relates to the use of a composition as described above for the manufacture of an antimetastatic drug.
- the independent and dependent claims define the particular and preferred features of the invention. The features of the dependent claims may be combined with the features of the independent claims or other dependent claims as appropriate. The appended claims are also explicitly included by reference in this specification.
- any reference in this description to "an embodiment” means that a particular function, structure or feature described with respect to the embodiment is included in at least one embodiment of the present invention.
- the occurrences of the phrase “in one embodiment” in various places of this description do not necessarily all refer to the same embodiment, but can.
- the particular functions, structures or features may be combined in any appropriate manner, as would be apparent to those skilled in the art upon reading this description, in one or more embodiments.
- the combinations of features of the various embodiments fall within the scope of the invention, and form different embodiments, as would be understood by those skilled in the art.
- any of the claimed embodiments may be used in any combination.
- composition comprising at least one flavanol compound in the sense of the present invention refers to a composition comprising one or more flavanol compounds. This includes but is not limited to a composition consisting mainly or exclusively of at least one flavanol compound.
- antimetastatic composition is intended to mean a composition preventing or at least minimizing the formation of metastases, that is to say preventing or at least minimizing the spread (migration) and / or the invasion and / or growth and / or proliferation of a tumor cell (metastatic progenitor cell) away from the site initially affected and in a tissue or organ reached by the blood or lymphatic system.
- antimetastatic is intended to mean a treatment which prevents or at least minimizes the formation of metastases, that is to say, preventing or at least minimizing the spread (migration) and / or invasion and / or the growth and / or proliferation of a tumor cell (metastatic progenitor cell) away from the initially affected site and in an organ reached by the blood or lymphatic system.
- patient any animal that is seeking a treatment according to the invention. This includes the animal, more particularly the mammalian animal, than the man.
- metalastatic progenitor cells is intended to mean cells which are at the origin of metastases.
- a derivative of a basic amino acid is meant in the sense of the present invention, any chemical derivation of a basic amino acid, such as an addition of a group -CH 3 , - C 2 H 5 or an amino group.
- Flavanols, flavanols-3, flavan-3-ols or catechins are a sub-family of flavonoids which are secondary metabolites of plants, all sharing the same basic structure formed by two aromatic rings linked by three carbons: C 6 -C 3 -C 6 .
- a catechin derivative is meant, within the meaning of the present invention, a catechin of which one or more of these OH functions is derivatized, for example by alkoxylation or by acylation, such as, for example, tetramethoxy-catechin, penta -acetoxy-catechin, and cyclic derivatives.
- the flavonols are present in the compositions according to the invention in the form of a complex formed by the establishment of coordination bonds with at least one basic amino acid or at least one derivative of a basic acid.
- a flavanol-type compound in the form of a complex formed by establishing coordination bonds with at least one basic amino acid or at least one a derivative of a basic amino acid provides a composition that can be used as antimetastatic composition, that is to say that can be used as a medicament for inhibiting the migration of metastatic progenitor cells from a primary tumor.
- this composition is not toxic, does not block the mitochondrial respiration of healthy cells and acts as a modulating agent for the production of superoxide and reactive oxygen species produced by metastatic progenitor cells, which constitutes a certain interest for use as a medicine, especially for humans.
- a flavanol compound in the form of a complex according to the invention makes it possible to regulate (ie modulate) an excessive production by the metastatic progenitor cells, superoxide and reactive oxygen species without inhibiting or completely suppress their presence which is naturally required at the level of healthy cells, in particular to ensure proper communication between cells and the proper functioning of the latter.
- a flavanol compound in the form of a complex according to the invention is capable of inducing a significant reduction in the number of metastatic progenitor cells migrating since a primary tumor to a healthy organ.
- the term “migration” or “dissemination” means the displacement of progenitor cells. metastatic from an original site (primary tumor) to other parts of the body (using the lymphatic system and / or the blood system).
- a flavanol-type compound in the form of a complex according to the invention has been identified as being an inhibitor which makes it possible to reduce at least 5 to 10%, preferably at least 20 to 40%, preferably at least 50 to 75% the number of metastatic progenitor cells migrating from a primary tumor to a healthy organ, this compound of type flavanol in the form of a complex according to the invention modulating the production of superoxide and reactive oxygen species (ROS) produced by these cancer cells.
- ROS reactive oxygen species
- a flavanol-type compound in the form of a complex formed by establishing coordination bonds with at least one basic amino acid or at least one derived from a basic amino acid, perfectly meets all these criteria.
- a flavanol-type compound in the form of a complex according to the invention makes it possible to act directly and rapidly at the level of the primary tumor. adequately modulating the presence of mitochondrial superoxide radical and ROS produced by metastatic progenitor cells thereby significantly minimizing migration of these cells.
- a flavanol compound in the form of a complex according to the invention is capable of penetrating through the mitochondrial membrane, this would allow this compound to capture an adequate proportion of the mitochondrial superoxide radical and ROS produced by the mitochondria of the metastatic progenitor cells.
- the capture and modulation of the mitochondrial superoxide radical and the ROS are carried out adequately to respect the natural physiological balance of the presence of mitochondrial superoxide radical and ROS at the level of healthy cells.
- compositions according to the invention have a pronounced antimetastatic effect in a recognized metastasis model.
- a composition comprising a (+) catechin complex present in the form of a complex formed by establishing coordination bonds with at least one basic amino acid or at least one derivative of a basic amino acid has a particularly high anti-metastatic effect.
- (+) catechin is present as a complex with a basic amino acid such as lysine or proline, or a derivative of lysine or proline.
- basic amino acids play an essential role in the composition of collagen and are essential for the formation of cross-links of collagen.
- the composition comprises a complex of a catechin with a basic amino acid, wherein the flavanol is selected from the group consisting of (+) - catechin, (-) - catechin, epicatechin, (-) - epicatechin, (+) - epi - gallocatechin, (-) - epigallocatechin, (+) - gallocatechin, (-) - gallocatechin, (+) - ) gallocatechin gallate, (-) - gallocatechin gallate and mixtures thereof.
- the flavanol is selected from the group consisting of (+) - catechin, (-) - catechin, epicatechin, (-) - epicatechin, (+) - epi - gallocatechin, (-) - epigallocatechin, (+) - gallocatechin, (-) - gallocatechin gallate, (+) - gallocatechin gallate and mixtures thereof.
- composition according to the invention that is to say comprising at least one flavanol-type compound in the form of a complex according to the invention, is much higher compared to epigallocatechin gallate, flavanol considered in the state of the art as the most powerful.
- flavanol is (+) catechin.
- the composition further comprises other active compounds, such as, for example, one or more other flavanols or other therapeutic compounds.
- the complex formed between the flavanol-type compound and at least one basic amino acid or at least one derivative of a basic amino acid makes it possible to to improve, unexpectedly, the bioavailability of the composition according to the invention even if the solubility of the composition is also increased via the formation of such a complex.
- the solubility in an aqueous medium is increased, it is expected that the ability of the complex to cross the lipid tissues is low, and, in the context of the present invention, it was determined, against all odds, that the bioavailability is still increased as well quite surprisingly despite the fact that the solubility is increased.
- the invention therefore relates to compositions comprising at least one flavanol-type compound present in the form of a complex with a basic amino acid and / or at least one derivative of a basic amino acid and on their use.
- said at least one flavanol-type compound present in the form of a complex is present in a molar concentration of between 0.01 ⁇ and 5000 ⁇ , preferably between 0.02 ⁇ and 2500 ⁇ , preferably between 0.1 ⁇ and 1000 ⁇ , preferably between 0.5 ⁇ and 500 ⁇ .
- Such a molar concentration of the flavanol compound present in the form of a complex has been determined to be adequate for the latter to act as a modulating agent (regulator) for the presence of excess mitochondrial superoxide radical and ROS produced in excess by the cells. metastatic progenitor.
- these molar concentrations correspond to a concentration of flavanol-type compound present in the form of a complex of between 0.0002 mg / ml and 400 mg / ml depending on the molecular weight of the flavanol-type compound under consideration.
- said flavanol compound is selected from the group consisting of (+) - catechin, (-) - catechin, (+) - epicatechin, (-) - epicatechin, (+) epigallocatechin, (-) - epigallocatechin, (+) - epicatechin gallate, (-) - epicatechin gallate, (+) - epigallocatechin gallate, (-) - epigallocatechin gallate, (+) - gallocatechin , (-) - gallocatechin, (+) - gallocatechin gallate, (-) - gallocatechin gallate and mixtures thereof.
- the flavanol is selected from the group consisting of (+) - catechin, (-) - catechin, (+) - epicatechin, (-) - epicatechin, (+) - epigallocatechin , (-) - epigallocatechin, (+) - epicatechin gallate, (+) - epicatechin gallate, (+) - gallocatechin, (-) - gallocatechin, (+) - gallocatechin gallate, (-) - gallocatechin gallate and mixtures thereof.
- the flavanol type compound is (+) - catechin.
- said at least one basic amino acid is chosen from the group consisting of lysine, arginine, ornithine, citruline, histidine, pyrolysine, tryptophan, proline and their derivatives. mixtures.
- said at least one basic amino acid is selected from the group consisting of lysine, arginine and proline. More particularly, in one embodiment, the basic amino acid is lysine.
- said complex has a molar equivalence ratio between said flavanol-type compound and said at least one basic amino acid or said at least one derivative of a basic amino acid of between 1: 0.25 and 1: 5, preferably between 1: 1 and 1: 4, preferably between 1: 1 and 1: 3, preferably between 1: 1 and 1: 2.5, more preferably between 1: 1 and 1: 2.
- Molar equivalence between said flavanol-type compound and said at least one basic amino acid has been determined, in the context of the present invention, as to provide a suitable complex for inhibiting the migration of metastatic progenitor cells.
- said molar equivalence ratio is greater than or equal to 1: 1, in particular greater than 1: 1.
- said molar equivalence ratio is less than or equal to 1: 3.
- said molar equivalence ratio is equal to 1: 2 or between 1: 2 and 1: 4, more preferably between 1: 2 and 1: 3.
- said molar equivalence ratio is less than
- said molar equivalence ratio is less than 1: 2.
- the molar equivalence ratio is between 1: 1.5 and 1: 2.5, preferably between 1: 1.5 and 1: 2.
- said molar equivalence ratio is greater than or equal to 1: 1 and less than or equal to 1: 2.50.
- said molar equivalence ratio is greater than or equal to 1: 1 and less than or equal to 1: 1.5.
- said molar equivalence ratio is greater than or equal to 1: 1, 5 and less than or equal to 1: 2.
- said molar equivalence ratio is greater than or equal to 1: 1.5, and less than or equal to 1: 2.5.
- said composition according to the invention further comprises one or more biocompatible excipients.
- said composition may comprise one or more lubricants, preservatives, stabilizers, sweeteners, adhesives, adjuvants, colorants, disintegrants, fillers and permeation enhancers. Excipients are well known to those skilled in the art.
- said composition according to the invention may further comprise an acid.
- this acid makes it possible to adjust the pH of the composition (as formulated or as formed just before administration) to low values, substantially lower than the natural acidity of the complex.
- the pH of the composition is of the order of 4.0 to 6.0 which allows a stabilization of the complex.
- the pH of the composition is higher, up to a physiological pH value of the order of 7.2 to 7.4.
- the pH of the composition is adjusted thus making it possible to stabilize the composition in its galenical form, for example in solution at a physiological pH value of the order of 7.2 to 7.4.
- the pH of the composition may also depend on the use of the composition as a drug, more particularly it may depend on the intended route of administration.
- the acid contemplated for reducing the pH value in this context may be an inorganic acid, which may be selected from the group consisting of hydrochloric acid, sulfuric acid or phosphoric acid or may be an organic acid such as aliphatic, cycloaliphatic, aromatic, or heterocyclic, carboxylic or sulfonic acids, for example acetic acid, propionic acid, succinic acid, glycolic acid, gluconic acid, lactic acid, malic acid , tartaric acid, citric acid, ascorbic acid, glucuronic acid, maleic acid, fumaric acid, pyruvic acid, aspartic acid, glutamic acid, mandelic acid methanesulfonic acid, ethanesulphonic acid, pantothenic acid, beta-hydroxypropionic acid, beta-hydroxybutyric acid, malonic acid, and
- said acid is selected from the group consisting of ascorbic acid, acetic acid, citric acid, hydrochloric acid, and mixtures thereof.
- said acid is hydrochloric acid.
- the composition may comprise, in order to improve the solubility and stability of the compounds, one or more pharmaceutically acceptable acidic or basic addition salts or solvates thereof. It may be advantageous to employ ⁇ or ⁇ cyclodextrins or derivatives thereof, in particular hydroxyalkyl-substituted cyclodextrins, for example, 2-hydroxypropylcyclodextrin or sulfobutyl-cyclodextrin. In one embodiment, the composition may also include solvents such as alcohols, which can improve the solubility and / or stability of the compounds.
- the composition according to the invention is in liquid form or in solid form.
- the composition is in a water-soluble solid form such as a powder or a tablet or an egg or suppository.
- the composition is provided as a combined preparation of the constituents (flavanol, amino acid, and acid option and excipients) for simultaneous use or combination directly prior to administration. More particularly, this kind of formulation is intended for oral administration.
- the composition may be formulated as a tablet. In these embodiments, said complex is formed post-administration.
- composition according to the invention is used orally, rectally, vaginally, injectably or cutaneously.
- the composition according to the invention is characterized in that the content of at least one flavanol-type compound, present in the form of a complex formed by establishing coordination bonds with at least one basic amino acid or at least one a derivative of a basic amino acid is between 15 and 95% by weight relative to the total weight of said composition, preferably between 60 and 90%, advantageously from 65 to 85% relative to the total weight of said composition.
- the composition according to the invention is characterized in that, in 0.01 molar solution at 25 ° C, it has a pH equal to or greater than 3, preferably between 4 and 1 1, advantageously between 4 , 5 and 9.
- the present invention relates to uses of the composition according to the invention for the preventive and / or curative treatment of cancerous diseases.
- the composition according to the invention is used for the preventive and / or curative treatment of cancers of the liver, the prostate, the breast, the uterus, the testes, the bladder, the kidneys, the lungs, the bronchi, bones, mouth, esophagus, stomach, pancreas of the colon-rectum or the brain.
- the composition according to the invention is used for the preventive and / or curative treatment of cancer, preferably hepatocellular cancer.
- the composition according to the invention is used for the preventive and / or curative treatment of leukemias.
- composition according to the invention is used for the preventive and / or curative treatment of myelomas.
- the composition according to the invention is used for the preventive and / or curative treatment of lymphomas.
- composition according to the invention is used for the preventive and / or curative treatment of melanomas.
- the present invention also relates to the use of a composition according to the invention for the prevention or treatment of cancer metastases.
- the invention relates to the manufacture of an antimetastatic drug.
- the invention provides for the treatment of patients who suffer or are at risk for cancer metastasis. More particularly, in one embodiment, these are patients who have been diagnosed with a tumor.
- the tumor is a tumor of breast, liver, prostate, uterine, testes, bladder, kidney, lung, bronchial, bones, mouth cancer. , the esophagus, the stomach, the pancreas of the colon-rectum or the brain.
- the invention contemplates treatment of circulating tumor cells (CTCs), i.e., tumor cells present in the blood and in the lymph.
- CTCs circulating tumor cells
- the composition targets the metastatic progenitor cells, that is to say the cells in migration.
- the invention contemplates the treatment of patients who have been diagnosed with a tumor with a high risk of metastasis.
- the tumor is a hypoxic tumor.
- the hypoxic character can be demonstrated histochemically, by detection of hypoxia markers, such as for example CAIX or HIF-1alpha, or by the use of a hypoxia indicator such as EF5 or a tracer. hypoxia such as [18F] -fluoromisonidazole.
- the tumor is a tumor expressing a metastasis marker.
- a metastasis marker for example Ned9, Pyk2, CPE-delta, CAIX, and metal loproteases 2 and / or 9 and also CAIX or HIF-1alpha.
- the invention provides for the treatment of patients who have been diagnosed with one or more metastases.
- the treatment envisaged according to the invention is a combination with one or more anti-cancer treatments.
- These treatments include for example but are not limited to surgery, radiotherapy, chemotherapy, targeted treatments, hormone therapy and immunotherapy.
- the composition can be administered before, during and / or after another anticancer treatment.
- the treatment contemplated according to the invention is a combination with a compound with an antiproliferative action.
- the treatment envisaged according to the invention is a combination with a drug or treatment established against cancer with an antioxidant action and / or which has an effect on the production of ROS.
- the treatment envisaged comprises the administration of a composition according to the invention by oral, rectal, vaginal, injectable or cutaneous.
- the administration is oral.
- compositions of the invention may be administered preoperatively, perioperatively, or postoperatively.
- the dosage is generally determined on the basis of the size, weight and / or body surface of the patient according to the dosage regimens.
- the composition may be administered once daily, twice daily, three times daily, or four times daily.
- administration of a dosage of 50 mg to 2 g / day / patient may be considered. More particularly, a dosage of about 250 mg to 750 mg / day, for example 500 mg / day may be considered. It is particularly advantageous to formulate the contemplated pharmaceutical compositions in unit dosage form for ease of administration and uniformity of dosage.
- the unit dosage form herein refers to physically distinct units that can be used as unit doses, each unit containing a predetermined amount of active ingredient.
- FIGS. 1A, 1B and 1C are graphs which respectively show the percentage of surviving SiHa-F3 (F3) tumor cells (FIG 1A), the percentage of cells having migrated (FIG 1B) and the DCFDA fluorescence ratio. protein content (Fig. 1 C) for treatment at varying concentrations of (+) - catechin (+ C).
- FIGS. 2A, 2B and 2C are graphs which respectively show the percentage of surviving SiHa-F3 (F3) tumor cells (FIG 2A), the percentage of cells having migrated (FIG 2B) and FIG. the DCFDA fluorescence / protein content ratio (FIG 2C) for treatment at varying concentrations of the (+) - catechin / lysine complex at a molar equivalence ratio of 1: 1.
- Figures 3A and 3B show graphs showing respectively the percentage of surviving SiHa-F3 (F3) tumor cells (Fig. 3A), the percentage of migrated cells (Fig. 3B) for treatment at varying concentrations of the complex (+ ) -catechin / lysine at a 1: 2 molar equivalence ratio.
- FIGS. 4A, 4B, 4C and 4D are graphs which show cell survival (measured by the crystal violet technique [CV] and expressed in% of supermetastatic SiHa-F3 cells not treated) of tumor cells treated with epigallocatechin gallate (EGCG), (+) - catechin, (+) - catechin / LysineHCl 1: 1 or (+) - catechin / LysineHCl (1: 2) (concentrations of 100 nM, 1 ⁇ , 10 ⁇ , 100 ⁇ , o500 ⁇ or 1 mM).
- FIGS. 5A, 5B, 5C and 5D are graphs which show the cellular survival (measured by the MTT technique and expressed in% of untreated SiHa-F3) of tumor cells treated with epigallocatechin gallate (EGCG), the (+) - Catechin, (+) - catechin / LysineHCI 1: 1 or (+) - catechin / LysineHCI (1: 2) (concentrations of 100 nM, 1 ⁇ , 10 ⁇ , 100 ⁇ , 500 ⁇ or 1 mM).
- FIGS. 6A, 6B, 6C and 6D are graphs which show the DCFDA / protein content fluorescence ratio for treatment of SIHa-F3 tumor cells with epigallocatechin gallate (EGCG), (+) - catechin, (+) -catechin / LysineHCl 1: 1 or (+) - catechin / LysineHCl (1: 2) (concentrations of 100 nM, 1 ⁇ M, 10 ⁇ M, 100 ⁇ M, 500 ⁇ M or 1 mM).
- EGCG epigallocatechin gallate
- (+) - catechin (+) -catechin / LysineHCl 1: 1
- (+) - catechin / LysineHCl (1: 2 concentration of 100 nM, 1 ⁇ M, 10 ⁇ M, 100 ⁇ M, 500 ⁇ M or 1 mM.
- FIGS. 7A, 7B, 7C and 7D are graphs which show the cell migration (in% of untreated SiHa-F3) of tumor cells treated with epigallocatechin gallate (EGCG), the (+) - Catechin, (+) - catechin / LysineHCI 1: 1 or (+) - catechin / LysineHCI (1: 2) (concentrations of 100 nM, 1 ⁇ , 10 ⁇ , 10 ⁇ , 500 ⁇ or 1 mM).
- FIGS. 8A and 8B are photographs (A) and a graph (B) demonstrating the effect of (+) - Catechin / LysineHCI 1: 2 on melanoma tumor cells treated with rotenone (Rot 20 nM + C / L 1: 2 10 ⁇ ) compared to the treatment of rotenone alone (Rot 20 nM) on the formation of pulmonary metastases in an experimental model.
- rotenone Rot 20 nM + C / L 1: 2 10 ⁇
- FIGS. 9A and 9B are photographs (A) and a graph (B) showing the effect of (+) - Catechin / LysineHCI 1: 2 (Rot 20 nM + C / L 1: 2 10 ⁇ ) and FIG. epigallocatechin-gallate / LysineHCI 1: 2 (Rot 20 nM + EGCG / L 1: 2 10 ⁇ ) on melanoma tumor cells during the formation of pulmonary metastases in an experimental model.
- One group of animals was treated with rotenone alone (Rot 20 nM) and served as a positive control.
- One group of animals was treated with DMSO alone and served as a negative control.
- FIGS. 10A and 10B are photographs (A) and a graph (B) showing the effect of catechin / LysineHCI 1: 2 (Rot 10 nM + C / L 1: 2 10 ⁇ ) or epigallocatechin gallate ( Rot 10 nM + EGCG 10 ⁇ ) on the formation of pulmonary metastases in an experimental model.
- the actual migration of the tumor cells was measured in a Boyden chamber with 50,000 cells per well and 0.15% fetal bovine serum (FBS) as a chemo-attractant.
- FBS fetal bovine serum
- the pore diameters of the porous membrane separating the two compartments of the Boyden chamber were fixed at 8 ⁇ . After 16 hours of migration, the cells were first fixed with methanol for 3 min and then stained with Crystal Violet.
- the culture medium used was DMEM 4.5 g / L glucose, GlutaMAX®, 1% penicillin / streptomycin sumution and 10% fetal bovine serum.
- the survival of the cells was estimated either on the basis of the quantification of the cells stained with crystal violet, or by the measurement of the activity of the succinate dehydrogenase (SDH) mitochondrial on the reduction of the tetrazolium salt MTT (suspension of the formazan obtained in DMSO and measurement of the absorbance at 570 nm).
- SDH succinate dehydrogenase
- ROS reactive oxygen species
- F3 means: control (untreated cells);
- F3 + C x M means: cells treated with (+) - catechin at a concentration of x molar;
- F3 C / L 1: 1 x M means: cells treated with the (+) - catechin / lysine complex at a 1: 1 molar equivalence ratio at a concentration of x molar;
- F3 C / L 1: 2 x M means: cells treated with the (+) - catechin / lysine complex at a 1: 2 molar equivalence ratio at a concentration of x molar.
- the molar concentration of 1 ⁇ was considered even if other values are taken from the graphs.
- FIG. 1A shows that a molar concentration of 1 ⁇ of (+) - catechin (+ C) does not affect the survival of the tumor cells, indicating that at this concentration, the (+) - Catechin is not toxic.
- FIG. 1B shows that a molar concentration of 1 ⁇ of (+) - catechin does not, however, make it possible to significantly reduce the number of tumor cells migrating from one compartment to the other of the Boyden cell.
- Figure 1C shows that (+) - catechin at this same concentration of 1 ⁇ has no impact on the level of reactive oxygen species (ROS) observed.
- ROS reactive oxygen species
- a molar concentration of 1 ⁇ of the (+) - catechin / lysine complex at a 1: 1 molar equivalence ratio (C / L 1: 1) does not affect the survival of the cells. tumor cells, indicating that at this concentration, the 1: 1 C / L complex is not toxic.
- Figure 2B shows that a molar concentration of 1 ⁇ l of 1: 1 C / L complex makes it possible to significantly reduce the number of tumor cells migrating from one compartment to the other of the Boyden cell by up to 30%.
- FIG. 3A shows that a molar concentration of 1 ⁇ of the (+) - catechin / lysine complex at a 1: 2 molar equivalence ratio (C / L 1: 2) does not affect the survival of the cells. tumor cells, indicating that at this concentration the C / L complex 1: 2 is not toxic.
- FIG. 3B shows that a molar concentration of 1 ⁇ l of C / L complex 1: 2 makes it possible to significantly reduce the number of tumor cells migrating from one compartment to another of Boyden's cell.
- Example 4 Vitotoxicity of (+) - catechin / Lysine HCI derivatives compared to epigallocatechin qallate on tumor cells.
- the epigallo-catechin gallate is from Sigma Chemical Co., St. Louis, (+) - catechin was prepared pharmaceutically pure from Gambir Block and its complexes were obtained by associating lysine hydrochloride in molar proportion.
- SiHa-F3 cells were initially generated as described in the recently published article in Cell Reports: Porporato PE and al., Cell Rep 2014, 8: 754-766.
- Cells were maintained in culture and manipulated in DMEM, 4.5g / L glucose, glutaMAX (Gibco), supplemented with 10% fetal bovine serum
- SiHa-F3 cells were inoculated and treated with the indicated compounds overnight (16h). The cells were then fixed for 3 min in methanol, stained with 0.23% crystal violet, and resuspended in DMSO for absorbance measurement at 595 nm (Victor X4 spectrophotometer, Perkin Elmer); or alternatively incubated for 3 h at 37 ° C. in a saturating solution of MTT in HBSS containing 10 mM Hepes, and resuspended in DMSO for measurement of the absorbance at 630 nm (Victor X4 spectrophotometer, Perkin Elmer) .
- SiHa-F3 cells were treated overnight (16h) with epigallocatechin gallate (EGCG), (+) - catechin, (+) - catechin / LysineHCI 1: 1 or (+) - catechin / LysineHCI (1: 2) (concentrations of 100 nM, 1 ⁇ , 10 ⁇ , 100 ⁇ , 500 ⁇ or 1 mM) after which cell survival was measured by crystal violet labeling ( Figure 4) or MTT ( Figure 5) .
- EGCG epigallocatechin gallate
- (+) - catechin (+) - catechin / LysineHCI 1: 1
- (+) - catechin / LysineHCI (1: 2) concentration of 100 nM, 1 ⁇ , 10 ⁇ , 100 ⁇ , 500 ⁇ or 1 mM
- catechin derivatives are less cytotoxic than epigallocatechin gallate.
- EXAMPLE 5 Antioxidant Activity of the Compounds
- the epigallo-catechin gallate, (+) - catechin and its complexes associated with lysine hydrochloride and D, L-lysine as well as the SiHa-F3 cells were obtained as described above. .
- the SiHa-F3 cells were treated for 2 hours with epigallocatechin gallate (EGCG), (+) - catechin, (+) - catechin / LysineHCI 1: 1 or (+) - catechin / LysineHCI (1). : 2) (concentrations of 100 nM, 1 ⁇ M, 10 ⁇ M, 100 ⁇ M, 500 ⁇ M or 1 mM), after which cell production of ROS was measured by DCFDA fluorescence.
- EGCG epigallocatechin gallate
- (+) - catechin (+) - catechin / LysineHCI 1: 1 or (+) - catechin / LysineHCI (1).
- concentration of 100 nM, 1 ⁇ M, 10 ⁇ M, 100 ⁇ M, 500 ⁇ M or 1 mM after which cell production of ROS was measured by DCFDA fluorescence.
- Epigallo-catechin gallate, (+) - catechin and its complexes associated with lysine hydrochloride and D, L-lysine as well as SiHa-F3 cells were obtained as described above.
- a 48-well reusable Boyden chamber (Neuroprobe) was used according to the manufacturer's instructions. Briefly, medium containing 0.15% fetal bovine serum was used as a chemo-attractant in the lower compartment, a polycarbonate membrane pierced with pores 8 ⁇ in diameter separated the two compartments, and 50,000 SiHa-F3 cells in suspension and in the presence of the indicated compounds were introduced into the upper compartment. Cell migration was quantified after one night (16h). The cells having migrated were fixed for 3 min in methanol, stained with 0.23% crystal violet for 30 min, and counted on 2.5 ⁇ magnification photographs using a reversed phase microscope (Axiovert and Mrc camera, Zeiss).
- SiHa-F3 cells were treated during a Boyden chamber migration by epigallocatechin gallate (EGCG), (+) - catechin, (+) - catechin / LysineHCI 1: 1 or (+) - catechin / LysineHCI (1: 2) (concentrations of 100 nM, 1 ⁇ M, 10 ⁇ M, 100 ⁇ M, 500 ⁇ M or 1 mM), after which the number of cells having migrated to 0.15% serum was counted. Results expressed in% of the control.
- EGCG epigallocatechin gallate
- (+) - catechin (+) - catechin / LysineHCI 1: 1
- (+) - catechin / LysineHCI (1: 2 concentration of 100 nM, 1 ⁇ M, 10 ⁇ M, 100 ⁇ M, 500 ⁇ M or 1 mM
- epigallocatechin gallate and (+) - catechin / LysineHCI complexes inhibit the migration of cancer cells. Only (+) - catechin / LysineHCI complex compounds inhibit tumor cell migration independently of cellular cytotoxicity that would have affected counting.
- Example 7 (+) - catechin / LvsineHC1 1: 2 inhibits the formation of metastases
- the B16F10 tumor cells come from the ATCC collection.
- the male C57BL / 6 mice of 6 or 7 weeks were acquired from the January laboratories, and the protocols were applied with the agreement of the ethics committee of the UCL and in respect of the Belgian laws relating to animal care.
- Model of experimental metastases B16F10 cells were pretreated with DMSO (0.5%, rotenone vehicle, negative control) or rotenone (inhibitor of the complex of the respiratory chain and mitochondrial superoxide inducer as described in Porporato PE et al., Cell Rep 2014, 8: 754-766, positive control), alone or in combination with the indicated compounds for 6 hours.
- Figure 8 shows representative photographs (A) and a graph (B) quantifying the formation of pulmonary metastases 14 days after injection of 10 6 cells of B16F10 murine melanoma into the caudal vein of syngeneic mice.
- the cells were previously treated with 0.5% DMSO (DMSO, negative control) or with the 20 nM mRNA alone (Rot 20 nM, positive control), or with the inhibitor of the respiratory chain complex and mitochondrial superoxide inducer 20 combination with (+) - Catechin / LysineHCI 1: 2 10 ⁇ (Rot 20 nM + C / L 1: 2 10 ⁇ ).
- n 7-9, One-way ANOVA with Bonferroni test, ** p ⁇ 0.01.
- (+) - catechin / LysineHCI 1: 2 inhibits the formation of metastases in an experimental model of intravenous injection.
- Figure 9 shows representative photographs (A) and graph (B) quantifying the formation of pulmonary metastases 14 days after injection of 10 6 murine melanoma cells B16F10 into the caudal vein of syngeneic mice.
- the cells were previously treated with 0.5% DMSO (DMSO, negative control) or with the 20 nM mRNA alone (Rot 20 nM, positive control), or with the inhibitor of the respiratory chain complex and mitochondrial superoxide inducer 20 combination with (+) - Catechin / LysineHCI 1: 2 10 ⁇ (Rot 20 nM + C / L 1: 2 10 ⁇ ) or with epigallocatechin-gallate / LysineHCI 1: 2 (Rot 20nM + EGCG / L 1: 2 10 ⁇ ).
- n 7-8, One-way ANOVA with Bonferroni test, ns p> 0.05, ** p ⁇ 0.01.
- Example 8 (+) - catechin / LvsineHCI 1: 2 but not epigallocatechin gallate reduces the formation of pulmonary metastases in an experimental model
- Figure 10 shows representative photographs (A) and graph (B) quantifying the formation of pulmonary metastases. days after injection of 10 6 cells of B16F10 murine melanoma into the caudal vein of syngeneic mice. The cells were previously treated with the 10 nM mitochondrial rotenone superoxide-inducible respiratory chain complex I inhibitor in combination with epigallocatechin gallate (10 nM Rot 10 nM + EGCG) or with the
- (+) - Catechin / LysineHCI 1: 2 10 ⁇ (Rot 10 nM + C / L 1: 2 10 ⁇ ). n 5-9, Student's t-test, ns p> 0.05, * p ⁇ 0.05.
- (+) - catechin / LysineHCI 1: 2 inhibits the formation of metastases more efficiently than epigallocatechin gallate 1: 2 in an experimental intravenous injection model.
- B16F10 or strongly (B16M4b, described in Porporato PE et al., Cell Rep 2014, 8: 754-766) metastatic, possibly carrying a luminescent or fluorescent reporter, are injected subcutaneously or intradermally into the flank of syngeneic C57BL / 6 mice.
- the evaluation of the anti-metastatic and / or anti-tumor activity of a catechin-type compound is evaluated by administering this compound to the animals, for example by intraperitoneal or intravenous route (injection) or orally (gavage). , incorporation into food or drinking water) and comparing it to his vehicle, according to a defined dosage schedule (dose and frequency of administration).
- the growth of the primary tumor is carefully monitored by repeated measurements (eg every 2-3 days) of the tumor diameter using a vernier caliper and / or luminescence or fluorescence imaging in vivo if the expression of a reporter by the tumor cells allows it.
- the average tumor diameter reaches preferably 10 mm (typically between days 10 and 14 for the aforementioned tumor lines)
- the primary tumor is excised with the dual objective of keeping the mouse alive and stimulating the development of metastases (Porporato PE et al., Cell Rep 2014, 8: 754-766, Gabri MR et al., Clin Cancer Res 2006; 12: 7092-7098).
- the time interval between surgeries on the first and the last mouse to develop a primary tumor of required size is as small as possible (typically 5 days for the aforementioned tumor lines).
- the excision of a possible regrowth of the primary tumor is performed as often as necessary, when this regrowth reaches the size of about 10 mm in diameter.
- mice are sacrificed in the different groups when one of the following events occurs: 1 °) a first animal presents a state of suffering exceeding the ethical limits, 2 °) a first animal dies without preliminary symptoms and has numerous and / or large metastatic lesions, 3) monitoring of luminescence or fluorescence in vivo indicates significant metastatic spread, if cells express adequate reporter, 4 °) a period of typically 30 to 40 post-injection days for B16M4b, or typically 60 to 90 days for B16F10. In these melanoma models, metastases occur mainly in the lungs and lymph nodes (inguinal, axillary, mediastinal) and less frequently in the liver, peritoneum, and possibly the brain.
- lung insufflation by intra-tracheal injection of saline is performed.
- Pulmonary metastases positive spots for melanin black pigment
- luminescence or ex vivo fluorescence imaging of the sampled organs and / or histological analysis are performed.
- the results are normalized for each animal by the area under the growth curve of the primary tumor until resection thereof.
- catechin derivatives according to the invention have an anti-metastatic effect.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Pharmacology & Pharmacy (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Nutrition Science (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mycology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Physiology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Botany (AREA)
- Inorganic Chemistry (AREA)
- Oncology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicinal Preparation (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE20145061A BE1022579A9 (fr) | 2014-11-10 | 2014-11-10 | Composition antimétastatique comprenant au moins un composé de type flavanol |
| PCT/EP2015/076248 WO2016075161A1 (fr) | 2014-11-10 | 2015-11-10 | Composition antimétastatique comprenant au moins un composé de type flavanol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3217969A1 true EP3217969A1 (fr) | 2017-09-20 |
Family
ID=52446170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15801354.0A Withdrawn EP3217969A1 (fr) | 2014-11-10 | 2015-11-10 | Composition antimétastatique comprenant au moins un composé de type flavanol |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20180008572A1 (fr) |
| EP (1) | EP3217969A1 (fr) |
| JP (1) | JP2017533965A (fr) |
| BE (1) | BE1022579A9 (fr) |
| WO (1) | WO2016075161A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4285964A (en) * | 1979-08-30 | 1981-08-25 | Continental Pharma | Salts of (+)-catechine, their preparation and use, and compositions containing these salts |
| CH665634A5 (en) * | 1985-08-30 | 1988-05-31 | Joseph Dr Kovacs | Stable soluble catechin complexes - with a double salt of L-lysine, for liver protection and digestive ulcers |
| US6939860B2 (en) * | 2002-01-08 | 2005-09-06 | Matthias Rath | Composition and method for treatment of neoplastic diseases associated with elevated matrix metalloproteinase activities using catechin compounds |
| RU2301666C2 (ru) * | 2002-01-11 | 2007-06-27 | Маттиас Рат | Обладающий питательными свойствами фармацевтический состав на основе полифенолов и его использование при лечении рака |
| BE1023772B9 (fr) * | 2013-05-17 | 2017-08-02 | Valore | Composition a base d'un complexe de (+)-catechine et d'acide amine pour le traitement et la prevention du cancer |
-
2014
- 2014-11-10 BE BE20145061A patent/BE1022579A9/fr not_active IP Right Cessation
-
2015
- 2015-11-10 EP EP15801354.0A patent/EP3217969A1/fr not_active Withdrawn
- 2015-11-10 JP JP2017543894A patent/JP2017533965A/ja not_active Withdrawn
- 2015-11-10 US US15/523,983 patent/US20180008572A1/en not_active Abandoned
- 2015-11-10 WO PCT/EP2015/076248 patent/WO2016075161A1/fr not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2016075161A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016075161A1 (fr) | 2016-05-19 |
| US20180008572A1 (en) | 2018-01-11 |
| BE1022579A9 (fr) | 2016-10-06 |
| BE1022579B1 (fr) | 2016-06-09 |
| BE1022579A1 (fr) | 2016-06-09 |
| JP2017533965A (ja) | 2017-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3641819A1 (fr) | Utilisation de cannabidiol dans le traitement de la sclérose tubéreuse de bourneville | |
| US12128027B2 (en) | N—N-dimethyltryptamine (DMT) and DMT analog compositions, methods of making, and methods of use thereof | |
| EP3273947B1 (fr) | Composition pour la sante oculaire | |
| WO2009093207A1 (fr) | Composition a usage topique | |
| EP3848025B9 (fr) | Compositions comprenant des acides aminés destinés à être utilisés dans la prévention et le traitement des effets secondaires de la chimiothérapie | |
| EP3506901B1 (fr) | Utilisation de l'acide kynurénique dans le traitement de l'atrophie musculaire | |
| FR2937867A1 (fr) | Association pharmaceutique contenant l acide lipoique et l acide hydroxycitrique a titre de principes actifs. | |
| WO2016075161A1 (fr) | Composition antimétastatique comprenant au moins un composé de type flavanol | |
| FR3043555B1 (fr) | Mirabegron pour le traitement de maladies retiniennes | |
| MX2015006175A (es) | Composicion encapsulada para ligar aldehidos en el estomago. | |
| FR3032616A1 (fr) | Compose de la famille des avermectines pour le traitement et/ou la prevention des folliculites | |
| EP2779839B1 (fr) | Produits pour administration orale comprenant des extraits de grenade punica granatum, destinés à un animal de compagnie, et ses applications | |
| US20210085676A1 (en) | Treatment for age- and oxidative stress-associated muscle atrophy and weakness | |
| EP4472623B1 (fr) | Nouvelle composition comprenant de la n-acetylcysteine pour pallier les effets indesirables d'une chimiotherapie | |
| EP3965790B1 (fr) | Triterpènes pentacycliques dans le traitement du vitiligo | |
| EP1313500B1 (fr) | Associations dalfopristine/quinupristine avec le cefpirome | |
| EA045710B1 (ru) | Применение композиций, содержащих аминокислоты, для предотвращения и лечения кардиотоксичности, индуцированной химиотерапевтическими агентами | |
| CA3216227A1 (fr) | Cardioprotection par induction d'autophagie et reprogrammation metabolique | |
| JP2021038147A (ja) | ミトコンドリア生合成促進剤 | |
| FR3068602A1 (fr) | Nouveau traitement du cancer par une combinaison d'un derive phosphorique d'inositol et de chlorure de magnesium | |
| CN102614167A (zh) | 5,7,4'-三羟基黄酮作为trpv4通道靶向调节剂的应用 | |
| CN105520948A (zh) | 多元酚类化合物鞣酸在制药中的应用 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20170609 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20181221 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VALORE SA Owner name: UNIVERSITE CATHOLIQUE DE LOUVAIN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20190501 |