WO2001068068A2 - Composes se liant au cytosquelette - Google Patents
Composes se liant au cytosquelette Download PDFInfo
- Publication number
- WO2001068068A2 WO2001068068A2 PCT/FR2001/000816 FR0100816W WO0168068A2 WO 2001068068 A2 WO2001068068 A2 WO 2001068068A2 FR 0100816 W FR0100816 W FR 0100816W WO 0168068 A2 WO0168068 A2 WO 0168068A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- map
- steroids
- cytoskeleton
- proteins
- preg
- 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.)
- Ceased
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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
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/57—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
- A61K31/573—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone substituted in position 21, e.g. cortisone, dexamethasone, prednisone or aldosterone
-
- 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
-
- 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
- A61K31/56—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids
- A61K31/57—Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
-
- 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
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P5/00—Drugs for disorders of the endocrine system
Definitions
- the invention relates to compounds capable of binding to constituent proteins or associated with elements of the cytoskeleton.
- the cytoskeleton is a complex network (see bibliographic reference (1) at the end of the description) which includes the primary networks of three classes of cytoskeletal filaments (microtubules, microfilaments, and intermediate filaments) to which is added a microtrabecular network which includes the majority proteins associated with microtubules, microfilaments and intermediate filaments.
- the MAP protein family of Microbubules Associated Proteins described below 1 is a characteristic example of a component of this network: it has " a binding domain to microtubules, but also to microfilaments (2,3) and intermediate filaments (4, 5).
- the microtubules are hollow cylinders with an external diameter of 25 mm, the wall of which is made up of protoflaments, themselves formed by the stack of globular ⁇ and ⁇ subunits of tubule (50 Kd).
- Tubod heterodimeres are periodically associated with proteins called MAP S associated proteins; whose role is to facilitate the assembly of the tubule, but also the organization and functions of the icrctubular network
- the tubule presents a great heterogeneity. It indeed includes numerous isoforms originating from both the expression of several genes and numerous post-translational modifications (6).
- MAP S are divided into two groups, namely, "structural” MAP involved in the assembly of tubulins and MAP ⁇ "motor” which use microtubules as rails to ensure the movement of certain molecules and organelles.
- the structural MAP ⁇ targeted in the invention include several families of proteins, namely, the MAPi A and B proteins (350 Kd) encoded by separate genes, the high molecular weight MAP A and B proteins (300 Kd), the proteins MAP. Low molecular weight C and D (around 70 Kd), MAP proteins A and B (180 Kd) present in neurons up to 10 days after birth, MAP proteins 4 A, B and C (215 to 240 Kd ) ubiquitous, with properties very close to those of MAP., Tau proteins (50-67 Kd or 110-120 Kdj, STOP proteins (145 Kd), very stabilizing molecules with microtubules.
- MAP proteins participate in the dend ⁇ tique arborization, while the tau proteins are essential for axonal growth.
- MAP. B increases his expression from fetal to adult stage.
- MAP- A is only expressed from a certain stage of development.
- MAP 2 C (2) which is mainly expressed in the early stages of development, is still present in the olfactory bulb (7) and in the photoreceptor cells of the retina (8) in adults.
- MAP 2 D is localized in the hippocampus from the fetal stage (3).
- Microfilaments are polymers made of actin (43 Kd). Very abundant in the cortical region of the axon, they are also found in the central region where they participate in its dynamic architecture.
- the intermediate filaments of neurons polymers formed by a triplet of proteins (68, 150, and 200 Kd), are present in differentiated neurons. Interconnected with microfilaments and microtubules, they help maintain the neuronal architecture, MAP S serving as a bridge between the three types of cytoskeletal filamentary structures.
- this new mechanism of action concerns any non-toxic compound, capable of crossing the blood-brain barrier, and capable of binding the same site as the
- PREG on said proteins, or to move PREG, and to exert an effect on the assembly and stabilization of microtubules.
- the object of the invention is therefore to provide compounds capable of binding to the proteins constituting or associated with the elements of the cytoskeleton as identified by a screening method, comprising bringing these compounds into contact with said proteins, under conditions allowing the establishment of a bond when the protein, MAP for example, is a receptor for the compound.
- the invention particularly relates to the use of such compounds for the manufacture of medicaments for the treatment of pathologies involving these proteins.
- the compounds which can be used according to the invention for the manufacture of medicaments are more especially steroid hormones, (this term being used in the description and the claims to cover their conjugates, such as sulphate esters, or fatty acid esters), their precursors, their metabolites, free or conjugated, as well as their analogs, steroid or non-steroid.
- pregnenolone or its esters in particular pregnenolone sulfate (PREGS), for which no intracellular receptor has been identified to date.
- PREGS pregnenolone sulfate
- Analogs are pharmaceutical agents capable of increasing the formation of microtubules, stabilize under the conditions given in the examples relating to PREG, to compete with PREG for binding to MAPc and to cross the blood-brain barrier while remaining sequestered in the nervous system if possible (9, 10, 11).
- They include polycyclic compounds, natural or enantiomeric, optionally in mixtures, their sulfates, or their lipid derivatives.
- the invention relates to addition and / or substitution products produced from said compounds on the one hand and proteins constituting or associated with elements of the cytoskeleton on the other hand.
- the invention relates in particular to steroid coupling products - associated proteins - microtubules, - in particular, steroids - MAP-, where appropriate in the form of copolymerized with tubulin, or steroids - tau proteins in the form of copolymerized with tubulin.
- the invention also relates to the use of proteins constituting or associated with the elements of the cytoskeleton as receptors for compounds as defined above.
- the invention therefore relates to the use of said compounds for manufacturing medicaments capable of binding specifically to constituent proteins or associated with elements of the cytoskeleton with cytoplasmic or nuclear localization for the treatment of pathologies with dysfunction of these proteins.
- the invention relates in particular to the manufacture of drugs adm istrable in oral form, for the treatment of the central nervous system, or in injectable form, for administration by the general route or m if you.
- the medicaments produced in accordance with the invention are advantageously used in combination with growth factors (NGF) and / or cellular regulators, such as mterferon or cytomes.
- growth factors such as Alzheimer's disease, dementia of vascular origin, the consequences of trauma and stroke in the nervous system and neurodegenerative diseases.
- the invention also relates to the manufacture of medicaments, using said compounds, for combating the aging of nerve cells, or of any other cell type containing MAP 3 , such as epithelial cells, thyroid cells, or endocrine glands , steroidogens in particular.
- said compounds can be used in combination with stabilizing effect compounds of the cytoskeleton, such as Taxol ® and Taxotere ®.
- Taxol ® or Taxotere ® or equivalent have a stabilizing effect on microtubules, it is possible to consider a synergistic phenomenon if the two drugs are used simultaneously. In this case, the doses of the two drugs required for good efficacy will be much lower than those required when the drugs are given as monotherapy.
- the above drugs can be used for the treatment cancers, in combination with anticancer agents, and allow the effect of the latter to be modulated, in particular in the event of chemo-resistance.
- the compounds used are combined with pharmacologically acceptable vehicles suitable for the dosage form chosen.
- the unit doses are of the order of 100 to 500 mg and the daily doses of the order of 500 mg to 1 g for administration by general route, this dose being reduced for administration in si tu.
- FIG. 2 by fetal brain cytosol chromatography by FPLC on a Mono Q ion exchange column,
- FIG. 3 by chromatography of the Mono Q peaks by FPLC on a column of Superose 12 filtration gel,
- FIG. 4 with one immunoblot of the cytosol and of the fractions of one of the peaks eluted from the columns of ion exchange and gel filtration, - Figure 5, the equilibrium binding of PREG [ J H] to MAP. purified, complexed or not with purified tubule,
- FIG. 6 the assembly kinetics of microtubules
- Sprague-Dawley rats from the January farm (Le Genest St Isle, France) are used. The rats are subjected to a light-dark alternation of 12 h (lights at 8 h) at 20 ° C and fed to satiety.
- Full females (the morning after mating is designated by EO) are housed in the pet store at least 7 days before sacrifice at E18.
- Adult males 60 to 70 days old are also used.
- the calf brains used are free of meninges and large blood vessels. They are stored in an ice-cold isotonic saline solution.
- the PREG [7- J H] (22.5 Ci / mmol) used is a product marketed by NEN (Boston, MA, EUA).
- Progesterone, pregnenolone sulfate, testosterone, corticosterone, t ⁇ amc olone acetonide, 17 ⁇ -OH PREG, 17 ⁇ -OH progesterone and cholesterol are Sigma-Aldrich products (St Quentin Fallavier, France)
- protemase K Merck, Darmstadt Germany
- Pronase Roche Molecular Biochemicals, Meylan, France
- TNM buffer containing lO M Tris, 0.1M NaCl, 3mM MgCl ⁇ (pH 7.4).
- Deoxy ⁇ bonuclease I and ribonuclease A are Sigma-Aldrich products and are adjusted, respectively, to 100 IU / l and 5 IU / ml.
- Phospholipase A2 (Roche Molecular Biochemicals) is diluted to 20 IU / ml in TNM.
- the anti- ⁇ -tubulm monoclonal antibody N-356 is an Amersham Pharmacia Biotech product (Freiburg, Germany).
- the monoclonal antibody 152 is an antibody produced by one of the inventors which reacts specifically with a MAP2 of high molecular weight.
- the antibody antibodies are diluted in PBS containing 3 of BSA.
- Fetal brains are recovered, from which the meninges are removed and subjected to rinsing with a homogenization buffer at 4 ° C. [10 mM T ⁇ s-HCl, pH 8.5 containing 1.5 mM EDTA, ImM dithiothreitol, 10 ° o glycerol, a mixture of Complete protease inhibitors ® (Roche Molecular Biochemical), called TEDG buffer]
- the brains of adult male rats are recovered after perfusion with PBS containing 2 IU / ml of heparm.
- the brains are weighed and homogenized with 4 vol. of homogenization buffer, in Potter glass / Teflon R homogenizers, and centrifugal at 800 g for 10 mm.
- the supernatant is then centrifuged at 100,000 g for 1 h at 4 ° C.
- the samples are used immediately for testing or are stored in liquid nitrogen until needed.
- Protein concentrations are determined using the Bio-Rad kit (Bio-Rad, Hercules, Canada) with BSA as a reference standard.
- each sample is purified with a suspension of dextran-carbon and samples of 2 ml of supernatant (purified cytosol) are added to a series of tubes containing PREG [ J H] at a rate of 1 to 500 nM, with or without unmarked steroid in excess of 1000 times.
- the tubes are incubated at 45 ° C for 30 mm.
- the separation of the bound steroid and the free steroid was carried out on a mini-column of Sephadex LH-20 (Amersham Pharmacia Biotech).
- the counting of the radioactivity in the flasks was carried out in a liquid scintillation spectrometer with correction of the attenuation (T ⁇ -carb 2100 TR, Packard).
- the FPLC system (Amersham Pharmacia Biotech) was equipped with an anion exchange column (5ml Econo-Pac High Q,
- the column was equilibrated with a TEDG buffer containing 0.03% CHAPS and 100 nM PREG (TEDGCP buffer) at 4 ° C.
- the cytosol (20 ml, 60 mg of protein) is applied and eluted at a speed of 1 ml / mm with the TEDGCP buffer for 20 mm.
- the Superose 12 column (1 x 30 cm, Amersham Pnarmacia Biotech) is balanced with TEDGCP buffer containing 0.15 M NaCl, at 4 ° C.
- the fractions collected are incubated with PREG [ J H] 100 nM in the absence or with a 100-fold excess of non-radioactive PREG. The saturable bond is then determined.
- Calf brains are washed 2 times in L buffer (0.1 M MES, 1 M EGTA, 0.1 mM EDTA, 1 mM MgCl, 1 mM dithiothreitol and 1 mM PMSF, pH 6.4).
- microtubules are prepared from calf brain or adult or fetal rat brain according to an assembly / disassembly process, as a function of temperature, m vi tro (12).
- the calf tubule is purified according to the protocol of Weinberg et al (13), but the step using phosphocellulose is replaced by chromatography on a cation exchange column (Fractogel Merck) (14).
- the microtubules and the tube are prepared in buffer L, supplemented with 1 mM GTP (buffer A).
- Proteins tau and MAP are purified according to the protocol of Fellous et al (12) by denaturation of microtubules by heat and gel filtration column, Sephacryl ® 300 being used instead of Ultrogel ACA 34. tau proteins are then further purified according to Lmdwall and Cole method (15).
- This assembly is able by controlling the turbidity increases with a spectrophotometer Uvicon ® (Kontron Instruments, Montigny-le-Bretonneux, France). - Culture of neurons
- the cells are incubated at 37 ° C. for 1 h, then at 4 ° C. for approximately 14 h, in the presence of either anti- ⁇ -tubulm monoclonal antibody diluted to 1/2000 or d monoclonal antibody ant ⁇ -MAP2 diluted to 1/1000 or anti-double cortin antiserum diluted to 1/300.
- the secondary antibody is added at room temperature, for 45 mm. It acts either of rabbit IgG [fragment F (ab ') _] anti-mouse Ig conjugated with biot e, diluted to 1/350 (Roche Molecular Biochemicals) or biotmyle anti-rabbit IgG, diluted to 1/300 (Boehrmger).
- the peroxidase-streptavidme amplification complex (Dako, Denmark) is added for 30 mm at room temperature.
- the cells are washed and the AEC substrate (amino-ethyl-carbazole, Sigma-Aldrich, Saint-Quentin Fallavier, France) is deposited on the cells for 15 mm.
- the reaction is stopped by adding distilled water.
- the cells are counter-stained with hematoxylm and mounted on Glycergel.
- cytosol samples (0.2 ml, 2.5 mg protein / ml), previously deteroidized by adsorption on carbon / dextran, are incubated with increasing concentrations of PREG [ 3 H] in a TEDG buffer at pH 8 , 5, at 40 ° C, for 30 mm.
- the bound steroid is separated by gel filtration on Sephadex LH20 ® at 0-4 ° C.
- the binding constants are determined with the Mac Ligand program.
- FIG. 1 represents a Scatchard diagram of the specific bond.
- Another steroid with a structure similar to PREG, namely 3 ⁇ -hydroxy-5 ⁇ -pregnane-20-one (5 ⁇ -dihydro-PREG) also appears to be an effective competitor, although 5 times less active than PREG.
- DHEA is a weak competitor and DHEA sulfate has an almost negligible effect.
- the preferred structures are C-21 steroids with a ketone group or an alcohol group in positions 3 and 20 and a ring A or B msature conferring a more planar structure on the skeleton of the steroid.
- the pregnenolone binding sites are eluted using an exchange column Mono Q ® ions. 60 mg of cytosolic proteins in a TEDGCP buffer are loaded on the column and eluted with a NaCl gradient. 2 ml fractions are collected.
- FIG. 2 shows the saturable bond of PREG [ 3 H] PREG (dpm x 10 ⁇ 4 ) (-o-) and the protein concentration (mg / ml) (0) in each fraction.
- Peaks A and B filters on a Superose 12 ® column eluting with TEDGCP buffer containing 0.15 M NaCl.
- cytosol binding protein could be a very high molecular protein associated with microtubules, which are major constituents of the neuronal cytoplasm.
- FIG. 4 reports the immunoblot of the cytosol and of the peak A fractions eluted from the ion exchange columns and ironed on a gel filtration column.
- Lane 1 corresponds to the raw cytosol; lane 2 at fraction A Mono Q ® ; lane 3 at fraction A subjected to a new chromotography on Superose 12 ® . 10 ⁇ g of protein are deposited on tracks 1 and 2. The amount of protein in track 3 is below the detection threshold.
- the fetal microtubules have a Kd constant for PREG [ J H] of 42.9 nM and a Bmax of 3.7 pmol / mg of protein, which represents a 3-fold enrichment compared to the fetal brain cytosol.
- the MAP fraction shows specific binding sites which increase when co-incubated with tubule.
- the molar concentration of the binding sites is 14 nM and that of MAP . , based on an average MW of 200,000, approximately 200 nM.
- microtubules are reconstituted m vi tro with purified tubule (1 mg / l) and MAP2 (0.05 mg / ml) in buffer A.
- the increase in absorbance is measured at 345 nm, at 37 ° C and recorded every 30 sec. for 15 min.
- the results are given in FIG. 6.
- the assembly of microtubules is measured either in the absence of steroids (- -), or in the presence of 500 nM of steroid: PREG (- -), progesterone (-X-), estradiol (-V-), or in presence of both PREG and progesterone (-o-) or PREG and estradiol (- ⁇ -), each at a concentration of 500 nM.
- Microtubules polymerized in the presence of PREG were analyzed to verify their appearance.
- the calf brain tubule In the presence of calf brain MAP 2 , the calf brain tubule assembles into microtubules of normal appearance, that is to say characterized by a remarkably constant conformation and a uniform diameter. The microtubule structure remains completely normal when MAP. induces tubing polymerization in the presence of 500 nM PREG. Effects of pregnenolone on neuronal cultures
- the fetal rat brain neurons are studied by immunocytochemistry after 3 days of culture.
- the results are given in FIG. 7 where A, C, E correspond to a control culture for 3 days, B, D, F, to the addition of pregnenolone 1 ⁇ M the last 2 days of culture.
- a and B a monoclonal anti-tubulin antibody is added, in C and D, a polyclonal anti-doublecortin antibody and in E and F, a monoclonal anti-MAP 2 antibody.
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Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01917179A EP1263419A2 (fr) | 2000-03-17 | 2001-03-19 | Composes se liant au cytosquelette |
| CA002403420A CA2403420A1 (fr) | 2000-03-17 | 2001-03-19 | Composes capables de se lier a des proteines constituantes ou associees aux elements du cytosquelette et leurs applications pour la fabrication de medicaments |
| AU2001244271A AU2001244271A1 (en) | 2000-03-17 | 2001-03-19 | Compounds capable of binding with the cytoskeleton |
| US10/221,862 US20030125311A1 (en) | 2000-03-17 | 2001-03-19 | Compounds capable of binding with the cytoskeleton |
| US11/090,072 US20050197322A1 (en) | 2000-03-17 | 2005-03-28 | Compounds capable of binding to proteins constituting or associated with cytoskeletal elements, and their applications for the manufacture of medicaments |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0003430A FR2806303B1 (fr) | 2000-03-17 | 2000-03-17 | Composes capables de se lier a des proteines constituantes ou associees aux elements du cytosquelette et leurs applications pour la fabrication de medicaments |
| FR00/03430 | 2000-03-17 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/090,072 Continuation US20050197322A1 (en) | 2000-03-17 | 2005-03-28 | Compounds capable of binding to proteins constituting or associated with cytoskeletal elements, and their applications for the manufacture of medicaments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2001068068A2 true WO2001068068A2 (fr) | 2001-09-20 |
| WO2001068068A3 WO2001068068A3 (fr) | 2002-06-20 |
Family
ID=8848200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2001/000816 Ceased WO2001068068A2 (fr) | 2000-03-17 | 2001-03-19 | Composes se liant au cytosquelette |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1263419A2 (fr) |
| AU (1) | AU2001244271A1 (fr) |
| CA (1) | CA2403420A1 (fr) |
| FR (1) | FR2806303B1 (fr) |
| WO (1) | WO2001068068A2 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2850023A1 (fr) * | 2003-01-17 | 2004-07-23 | Mapreg | Medicaments pour le systeme nerveux |
| EP1812009A4 (fr) * | 2004-11-18 | 2010-08-11 | Umecrine Ab | Antagonistes des steroides gaba et leur utilisation dans le traitement des troubles du snc |
| US9339508B2 (en) | 2003-01-17 | 2016-05-17 | Mapreg | Use of 3-methoxy-pregnenolone for the preparation of a drug for treating a traumatic brain injury |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE324462T1 (de) * | 1997-09-04 | 2006-05-15 | Univ Leland Stanford Junior | Assays zur detektierung von modulatoren der cytoskeletalen funktion |
| JP2002517449A (ja) * | 1998-06-10 | 2002-06-18 | ステリックス リミテッド | エストロンスルファターゼの阻害のための腫瘍壊死因子aおよび2−メトキシエストロン−3−o−スルファメートを有する薬学的組成物 |
| AU6228299A (en) * | 1998-10-29 | 2000-05-22 | Teikoku Hormone Mfg. Co., Ltd. | 2-substituted-d-homooxasteroid derivatives |
| AU5276300A (en) * | 1999-05-21 | 2000-12-12 | University Of Hawaii | Taccalonolide microtubule stabilizing agents |
-
2000
- 2000-03-17 FR FR0003430A patent/FR2806303B1/fr not_active Expired - Fee Related
-
2001
- 2001-03-19 WO PCT/FR2001/000816 patent/WO2001068068A2/fr not_active Ceased
- 2001-03-19 CA CA002403420A patent/CA2403420A1/fr not_active Abandoned
- 2001-03-19 AU AU2001244271A patent/AU2001244271A1/en not_active Abandoned
- 2001-03-19 EP EP01917179A patent/EP1263419A2/fr not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2850023A1 (fr) * | 2003-01-17 | 2004-07-23 | Mapreg | Medicaments pour le systeme nerveux |
| WO2004067010A1 (fr) * | 2003-01-17 | 2004-08-12 | Mapreg | Utilisation de la 3-methoxy-pregnenolone pour la preparation d’un medicament destine a traiter les maladies neurodegeneratives |
| US8034798B2 (en) | 2003-01-17 | 2011-10-11 | Mapreg | Use of 3-methoxy-pregnenolone in the production of a medicament for treating neurodegenerative diseases |
| US9339508B2 (en) | 2003-01-17 | 2016-05-17 | Mapreg | Use of 3-methoxy-pregnenolone for the preparation of a drug for treating a traumatic brain injury |
| EP1812009A4 (fr) * | 2004-11-18 | 2010-08-11 | Umecrine Ab | Antagonistes des steroides gaba et leur utilisation dans le traitement des troubles du snc |
| AU2005307151B2 (en) * | 2004-11-18 | 2011-10-20 | Umecrine Ab | Gaba-steroid antagonists and their use for the treatment of CNS disorders |
| US8114860B2 (en) | 2004-11-18 | 2012-02-14 | Umecrine Ab | GABA-steroid antagonists and their use for the treatment of CNS disorders |
| US8372824B2 (en) | 2004-11-18 | 2013-02-12 | Umecrine Ab | GABA-steroid antagonists and their use for the treatment of CNS disorders |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2806303B1 (fr) | 2002-09-27 |
| EP1263419A2 (fr) | 2002-12-11 |
| AU2001244271A1 (en) | 2001-09-24 |
| WO2001068068A3 (fr) | 2002-06-20 |
| FR2806303A1 (fr) | 2001-09-21 |
| CA2403420A1 (fr) | 2001-09-20 |
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