WO1997002036A1 - 4-(2-(n-2-carboxamidoindole)aminoethyl)-benzenesulfonamides or sulfonylureas as pdgf antagonists - Google Patents
4-(2-(n-2-carboxamidoindole)aminoethyl)-benzenesulfonamides or sulfonylureas as pdgf antagonists Download PDFInfo
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- WO1997002036A1 WO1997002036A1 PCT/US1996/007881 US9607881W WO9702036A1 WO 1997002036 A1 WO1997002036 A1 WO 1997002036A1 US 9607881 W US9607881 W US 9607881W WO 9702036 A1 WO9702036 A1 WO 9702036A1
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- 0 C*C1C=CCCC1 Chemical compound C*C1C=CCCC1 0.000 description 2
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- 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
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
- A61K31/445—Non condensed piperidines, e.g. piperocaine
- A61K31/4523—Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems
- A61K31/454—Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a five-membered ring with nitrogen as a ring hetero atom, e.g. pimozide, domperidone
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- 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
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/40—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil
- A61K31/403—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with carbocyclic rings, e.g. carbazole
- A61K31/404—Indoles, e.g. pindolol
- A61K31/4045—Indole-alkylamines; Amides thereof, e.g. serotonin, melatonin
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- 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
- A61K31/64—Sulfonylureas, e.g. glibenclamide, tolbutamide, chlorpropamide
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
Definitions
- SMCs smooth muscle cells
- treatment of atherosclerosis frequently includes the clearing of blocked vessels by angioplasty, endarterectomy or reduction atherectomy, or by bypass grafting, surgical procedures in which atherosclerotic plaques are compressed or removed through catheterization (angioplasty) , stripped away from the arterial wall through an incision (endarterectomy) or bypassed with natural or synthetic grafts . These procedures remove the vascular endothelium, disturb the underlying intimal layer, and result in the death of medial SMCs.
- This injury is followed by medial SMC proliferation and migration into the intima, accompanied by excessive deposition of extracellular matrix.
- This lesion development characteristically occurs within the first few weeks and up to six months after injury and stops when the overlying endothelial layer is reestablished. In humans, these lesions are composed of about 20% cells and 80% extracellular matrix. In about 30% or more of patients treated . by angioplasty, endarterectomy or bypass grafts, thrombosis and/or SMC proliferation in the intima causes re- 1- occlusion of the vessel and consequent failure of the reconstructive surgery. This closure of the vessel subsequent to surgery is known as restenosis.
- platelet mitogens such as platelet derived growth factor (PDGF)
- PDGF platelet derived growth factor
- a proposed mechanism for plaque formation is the release by platelets, at sites of endothelial denudation, of growth factors that stimulate SMC growth (Ross and Glomset, N. Eng. J. Med. 295 : 369- 377, 420-425, 1976; Ross, Arteriosclerosis 1: 293-311, 1981) .
- Moore et al. Thrombos. Haemostas.
- platelets do not play a role in the initial SMC proliferation after balloon injury but may regulate SMC migration into the intima.
- Platelets are now known to release a number of growth factors, including PDGF, epidermal growth factor (EGF) , transforming growth factors alpha and beta (TGF ⁇ and TGF ⁇ ) , insulin-like growth factor I (IGF-I) and platelet derived endothelial cell growth factor, as well as several chemoattractant molecules.
- EGF epidermal growth factor
- TGF ⁇ and TGF ⁇ transforming growth factors alpha and beta
- IGF-I insulin-like growth factor I
- platelet derived endothelial cell growth factor as well as several chemoattractant molecules.
- the present invention is directed to methods for inhibiting intimal hyperplasia in the vasculature of a mammal, and to methods of inhibiting platelet-derived growth factor (PDGF) activity.
- PDGF platelet-derived growth factor
- Alkyl referes to a saturated acyclic hydrocarbon radical .
- Alkoxy referes to a saturated acyclic hydrocarbon radical containing at least one oxygen atom.
- Mono or Poly-cycloalkyl referes to a radical of a saturated hydrocarbon having one (mono) or more than one (poly) ring.
- Bridged mono or polycycloalkyl referes to a mono or polycycloalkyl having one or more bridges which consist of a chemical bond, a single atom, or a chain of atoms, connecting two different parts of the molecule.
- Heterocyclic ring referes to a radical of a cyclic compound in which at least one of the ring atoms is not a carbon atom.
- the present invention provides methods of inhibiting intimal hyperplasia in the vasculature of a mammal comprising administering an antihyperplastically effective amount of a 4- (2- (N-2-carboxamido indole) aminoethyl)benzenesulfonamide or sulfonylurea of formula I :
- R x , R 4f and R 5 are individually H, F, Cl, Br, -CF3, or a linear or branched alkyl or alkoxy of from 1 to 6 carbon atoms;
- R 2 and R 3 are individually H or a linear or branched alkyl of from 1 to 6 carbon atoms;
- R 6 is H, a linear or branched alkyl or alkoxy of from 1 to 18 carbon atoms, or
- n is 1 or 2; each X is individually C, N, NH, O, and S, with the proviso that at least 1, preferably 2, X are C; R 9 , R 10 , and Rn are individually H, F, Br, Cl, -CF 3 , or a linear or branched alkyl or alkoxy of from 1 to 6 carbon atoms; R 7 and R 8 are individually H, a linear or branched alkyl of from 1 to 18 carbon atoms, -CONH-R 12 , or R 7 and R 8 together with the N that links them form a substituted or unsubstituted heterocyclic ring of from 3 to 8 ring at s H /
- Y is nitrogen;
- R ⁇ and R 14 are independently H, a linear or branched alkyl of from 1-6 carbon atoms or R 13 and R 14 together with the N that links them form a substituted or unsubstituted heterocyclic ring of from 3 to 8 ring atoms;
- Z is carbon; and
- R15, Rig and R 17 are independently H, a linear or branched alkyl of from 1-6 carbon atoms, R 15 and R 16 , R 16 and R 17 , or R 15 and R 17 together with Z form a substituted or unsubstituted monocycloalkyl of from 3 to 8 carbon atoms, or R 1 5, Ri6' and R17 together with Z form a substituted or unsubstituted mono or polycycloalkyl of from 7 to 14 carbon atoms or a substituted or an unsubstituted bridged mono or polycycloalkyl of from 6 to 14 carbon atoms .
- R l t R 4 and R 5 are individually H, methyl or methoxy; R 2 and R 3 are individually H or methyl; R 6 is a linear or branched alkoxy of from 1 to 6 carbon atoms, or
- n 1 or 2; each X is individually selected from the group consisting of C, S and N, with the proviso that 1, preferably 2, X are C; R 9 , R 10 , and R l ⁇ are individually H, methyl or methoxy; R 7 and R 8 are individually H, a linear or branched alkyl of 1 to 6 carbon atoms, or CONH-R12;
- Y is nitrogen; Z is carbon; R 3 and R14 together with Y form a heterocyclic ring of from 5 to 6 ring atoms and R 15 and R 16 , R 16 and R 17 , or R 15 and R 17 together with Z form a substituted or unsubstituted monocycloalkyl of from 5 to 6 carbon atoms, or R15, R-_ , and R ] _7 together with Z form a substituted or unsubstituted mono or polycycloalkyl of from 9 to 10 carbon atoms or a substituted or an unsubstituted bridged mono or polycycloalkyl of from 8 to 10 carbon atoms.
- R 7 and R 8 together with the N that links them form an unsubstituted heterocyclic ring of not more than 6 ring atoms.
- R ] _g and R ⁇ g are individually H, F, Br, Cl, -CF 3 , or a linear or branched alkyl or alkoxy of from 1 to 6 carbon atoms.
- R 15 and Rig, Rig and Rl or R15 and R1 together with Z form the moiety
- R2O' R 2 1 an ⁇ ⁇ R 2 2 are individually H, F, Br, Cl, -CF3, or a linear or branched alkyl or alkoxy of from 1 to 6 carbon atoms .
- Rg is N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl-N-(2-aminoethyl)-2-aminoethyl
- Rig and Rig are individually H, methyl, ethyl, methoxy or ethoxy.
- R2O' R 21' an ⁇ ⁇ R22 are individually H, methyl, ethyl, methoxy or ethoxy.
- the invention provides that R 6 is benzyloxy.
- the compound is NNC92-0270:
- the intimal hyperplasia results from vascular injury, including vascular injury due to vascular reconstruction, such as angioplasty, endarterectomy, reduction atherectomy, endovascular laser ablation or anastomosis of a vascular graft.
- a compound of formula I is administered to a mammal within an antihyperplastically effective time period prior to, concurrent with or subsequent to an acute vascular injury in the mammal.
- a compound of formula I is administered concurrently with an antihyperplastically effective amount of heparin.
- the invention also provides methods of using the compounds of formula I as non-peptide PDGF antagonists, such as for inhibiting PDGF activity in a mammal
- restenosis of blood vessels is a common problem in patients who have undergone angioplasty, endartarectomy, or bypass grafting. Restenosis is one example of intimal hyperplasia, which is believed to proceed via a process that includes both proliferation (mitosis) and migration of vascular smooth muscle cells in the area damaged by the surgical procedure, as well as by the production (deposition) of extracellular matrix. See, in general, Harker, Am. J. Cardiol . ⁇ _ :20B-28B, 1987; and DeFeudis, Drug News and Perspectives 5_:49-51, 1992.
- This proliferative process is also manifested in the occlusion of vascular grafts (both natural, including autologous and allogeneic, and synthetic), and in transplanted organs.
- This proliferative process results in the development of lesions rich in smooth muscle cells and is referred to herein as intimal hyperplasia.
- the present invention provides methods for inhibiting the development of SMC-rich lesions (partial or complete blocking of a blood vessel through intimal thickening (hyperplasia) ) through the use of a antihyperplastically effective amount of a non-peptide PDGF antagonist, either independently, or in combination with an antihyperplastically effective amount of heparin.
- Non-peptide PDGF antagonists of the current invention may be useful in a therapeutic regime for scleroderma, lung hyperplasia, kidney fibrosis, rheumatoid arthritis, treatment of solid cancers including, but not limited to, osteosarcoma, fibrosarcoma, glioma or other proliferative cellular diseases. ID
- IV For the synthesis of compounds of formula I where R7 and Rg form sulfonylureas, IV, where R 7 and Rg are H, provides the starting material for further manipulations as shown below.
- IV is first converted to the ethyl sulfonylcarbamate V by treatment with ethylchloroformate.
- V can then be converted either to VI (or the compound of formula I where R7 or R ⁇ is -CONH2) by reaction with the appropriate amine, or VII by reaction withahydrazine.
- VI or the compound of formula I where R7 or R ⁇ is -CONH2
- acetyl amide is hydrolyzed either in aqueous base or acid to give the free amine VIII.
- VIII can then be acylated with the appropriate indole-2- carboxylic acid chloride to give X, the compounds of formula I .
- IX is prepared by the reaction of the corresponding indole-2-carboxylic acid with oxalyl chloride.
- the indole-2-carboxylic acids are prepared by one of the many methods known to those skilled in the art .
- Ethyl 2-aminobenzoate is N-alkylated with ethyl ⁇ - bromoacetate to give XI.
- Treatment of XI with sodium ethoxide affords the 3-oxoindole XII.
- Alkylation with the appropriate alkyl halide gives the 3-alkoxyindole
- non-peptide PDGF antagonist refers to a compound, other than a peptidic compound, that inhibits a PDGF-induced stimulation of a response pathway.
- a "response pathway” is a biochemical pathway activated in response to external stimuli that is generally, but no always, directly coupled to a membrane- bound receptor. Response pathways generally induce cellular responses such as, extracellular matrix secretion from responsive cell lines, hormone secretion, chemotaxis, differentiation or the stimulation of cell division of responsive cells.
- PDGF receptors are integral, transmembrane glycoproteins whose expression is generally limited to cells of mesodermal origin. Two PDGF receptor polypeptides have been described. These are termed “alpha receptor” (Kelly et al. , WO 90/14425; Kelly et al., U.S. Patent No. 5,371,205; Claesson-Welsh et al . , Proc. Natl. Acad. Sci. USA 86: 4917-4921, 1989) and “beta receptor” (Claesson-Welsh et al . , Mol. Cell. Biol. .8: 3476-3486, 1988; Gronwald et al. , Proc. Natl.
- ⁇ the receptor polypeptides dimerize.
- Three receptor subtypes are thus possible: ⁇ , ⁇ and ⁇ .
- the ⁇ receptor is specific for the B-chain of PDGF, while the ⁇ receptor binds the A-chain and the B-chain. Consequently, the growth regulatory responsiveness of cells to PDGF depends not only on the availability of PDGF AA, AB and BB ligand isoforms, but also on the expression and availability of different PDGF receptor subtypes (Heldin et al . , Cell Regul. 1 : 555-566, 1990) .
- Human smooth muscle cells express both alpha and beta receptor subtypes (Heldin et al . , Cell Regul . 1: 555-566, 1990) , but other cell types are known which express only a single receptor subtype (Gronwald et al. , J. Biol. Chem. 264 : 8120-8125, 1989) .
- the present invention also provides methods for inhibition of intimal hyperplasia by ⁇ 4 ' coordinately administering an antihyperplastically effective amount of a non-peptide PDGF antagonist and an antihyperplastically effective amount of heparin.
- heparin refers to any member of a family of structurally complex, sulphated glycosaminoglycans generally characterized by a structure of repeating glucosamine and glucuronic acid sugar residues (Casu, Adv. Carbohyd. Chem. and Biochem. 42:
- heparin is "unfractionated” or "commercial" heparin prepared from bovine lung or porcine gut, which encompasses a heterogeneous mixture of heparin molecules ranging from approximately 8,000 to 20,000 daltons molecular weight
- heparin also encompasses a broad range of more homogeneous heparin preparations, as well as heparin-like molecules, including heparan sulfates. Among these particular heparin examples, more specific heparin subtypes are also known. For example, heparan sulfate moieties produced by endothelial cells
- heparin for the purposes of describing the invention are synthetic heparins and heparin derivatives, a variety of which have been produced using conventional chemical synthetic, modifying and degradative techniques (see for example, Roden, L. The Biochemistry of Glycoproteins and Proteoglycans (Lennarz, W.J., ed. ) pp 267-371, Plenum Publishing Corp., New York, 1980, incorporated herein by reference) .
- an “antihyperplastically effective amount” of a compound is defined as an amount of a compound sufficient to measurably reduce or prevent intimal hyperplasia in a blood vessel, vessel graft or vascular component of a transplanted organ. More specifically, “inhibition of intimal hyperplasia” is herein defined to include any measurable inhibition of one or more of the intimal hyperplastic processes described in the art, such as vascular smooth muscle cell (VSMC) migration, VSMC proliferation, and neointimal deposition of extracellular matrix.
- VSMC vascular smooth muscle cell
- intimal hyperplasia reduction or prevention of intimal hyperplasia, or of a hyperplastic process involved in intimal hyperplasia, can be readily evaluated using in vi tro, in vivo and ex vivo assay systems known in the art, in particular primate-based assay systems (e.g., non-human or human primate VSMC cultures or vascular tissue explants, or non-human primate in vivo tests) .
- primate-based assay systems e.g., non-human or human primate VSMC cultures or vascular tissue explants, or non-human primate in vivo tests.
- SMC proliferation and subsequent matrix deposition may be reduced.
- a reduction in intimal hyperplasia is clinically manifested as a significant decrease in loss of lumenal volume after an acute vascular injury. Such a reduction will generally result in a decreased need for re-vascularization procedures
- Acute vascular injuries are those which occur rapidly (i.e. over days to months), in contrast to chronic vascular injuries (e.g. atherosclerosis) which develop over a lifetime.
- Acute vascular injuries often result from surgical procedures such as vascular reconstruction, wherein the techniques of angioplasty, endarterectomy, reduction atherectomy, endovascular stenting, endovascular laser ablation, anastomosis of a vascular graft or the like are employed.
- Hyperplasia may also occur as a delayed response in response to, e.g., emplacement of a vascular graft or organ transplantation.
- the antagonist may be given under a wide range of conditions.
- the antagonist can be given via bolus injections, both prior to the re-vascularization procedure as well a multiple times following the procedure.
- the antagonist may be given orally, as a bolus injection (intravenous, intramuscular, intraperitoneal or subsutaneous) prior to the procedure (generally within 24 hours before surgery) and a constant infusion following the procedure (including infusion via implanted pumps) .
- the antagonist may be given via multiple routes including intravenous, intramuscular or subcutaneous injections.
- the antagonist may be delivered locally to the site of vascular injury using perfusion balloon catheters, coating onto stents, or placement on gel coated balloons. In the latter cases it would be expected that the doses of antagonist would be substantially less H than that required when given systemically.
- the antagonist may also be delivered by slow-release delivery systems, including such systems incorporated into vascular grafts or stents, or by way of perfusion of double balloon catheters. Pumps or other known delivery systems may also be employed.
- a non-peptide PDGF antagonist is administered to a mammal coordinately with heparin, in respective unit doses of antagonist and heparin sufficient to combinatorially inhibit intimal hyperplasia in the vasculature of the mammal.
- coordinate administration is intended to include concurrent, separate or sequential administration of the antagonist and heparin, wherein both the antagonist and heparin are administered within a limited, combinatorially effective time period relative to one another.
- a "combinatorially effective time period” is defined as a maximum intervening time period between administration of the antagonist and administration of the heparin in which the two agents are combinatorially effective in inhibiting the hyperplasia.
- combinatorially effective is in turn defined as producing a measurable inhibition of intimal thickening or lesion formation, or of a hyperplastic process, which exceeds a maximum level of inhibition independently provided by either the antibody or heparin administered alone, under otherwise comparable conditions and dose.
- heparin will be between approximately lug-lOOmg/kg/day.
- heparin doses will be between 29 ⁇ g-10 mg/kg/day, and more preferably less than about 1 mg/kg/day.
- actual doses will be determined with consideration of specific circumstances, including patient parameters and the characteristics of the antagonists and heparin administered. The inhibition of hyperplasia will be expected to lead to a decrease in clinical events in patients.
- These events include a decrease in one or more myocardial infarcts, angina, the need for revascularization procedures, and death.
- SRE-Luciferase high through-put assay system which involves selection of substances that are able to block expression of a serum response element (SRE) -luciferase reporter gene expressed in SWISS3T3 cells.
- the SRE- luciferase construct, pKZ67 is a pUCl ⁇ -derived mammalian cell expression vector comprising a luciferase expression unit that includes a synthesized segment containing human c-fos sequence from -360 to +30 (van Straaten et al. , Proc. Natl . Acad. Sci.
- SWISS3T3 cells express endogenous growth factor receptors such as, PDGF-AA, -AB and -BB; bFGF and EGF.
- Stimulating the receptors with any of these growth factors initiates a signal cascade leading to induction of luciferase.
- PMA phorbol 12-myristate 13-acetate
- the degree of antagonist specificity can be determined by comparing the resultant signal for the three growth factors (PDGF, bFGF and EGF) . Compounds resulting in a 50 fold signal reduction compared to the control were considered for further analysis.
- SWISS3T3 cells (transfected with a SRE- luciferase reporter gene, SWISS3T3/KZ67-G1-6) were maintained by serial passage in maintenance medium (DMEM (GIBCO BRL, Gaithersburg, MD) supplemented with 10% fetal bovine serum (FBS) , 2 mM L-glutamine, 1 mM sodium pyruvate, 1 mg/ml G418) .
- DMEM fetal bovine serum
- FBS fetal bovine serum
- cells were trypsinized, adjusted to 5 x 10 4 cells/well in growth medium (DMEM supplemented with 1% FBS, 2 mM L- glutamine, 1 mM sodium pyruvate) , plated in opaque white 96-well microtiter plates at 200 ⁇ l/well (1 x 10 4 cells/well) and grown for 48 hours at 37°C, 5% CO2 •
- growth medium DMEM supplemented with 1% FBS, 2 mM L- glutamine, 1 mM sodium pyruvate
- Test substances were prepared in 4% DMSO. Induction was initiated by removing spent medium from the wells and adding 50 ⁇ l/well assay medium (F12 HAM (Gibco) supplemented with 0.5% Fraction V BSA (Sigma, St. Louis, Mo.), 2 mM L-glutamine, 1 mM sodium pyruvate, 20mM Hepes. Twenty five microiiters of either 50ng/ml PDGF (final assay concentration 12.5 ng/ml) or 8 ng/ml bFGF (final assay concentration 2.0 ng/ml) in assay medium were added to the wells.
- 50ng/ml PDGF final assay concentration 12.5 ng/ml
- 8 ng/ml bFGF final assay concentration 2.0 ng/ml
- Controls prepared in assay medium, were included on each plate: untreated wells (basal) , 12.5 ng/ml, more preferably 6.25 ng/ml, PDGF BB (platelet derived growth factor, stock 10 ⁇ g/ml lOmM Acetic acid, 0.25% RSA in PBS) , 2.0 ng/ml bFGF (basic fibroblast growth factor (Genzyme Diagonstics, Cambridge, MA)) , 4.5 ng/ml EGF (epidermal growth factor (Sigma) ) or 50 ng/ml PMA (Sigma) .
- Final assay concentration of DMSO do not exceed 1%. Plates were incubated for 5 hours at 37° C, 5% C0 2 .
- luciferase activity was measured using a Promega luciferase assay kit (E1500; Promega Corp., Madison, WI) according to the assay kit protocol. Briefly, assay medium was removed from the plate, and 25 ⁇ l/well cell lysis buffer, diluted 1:5 with sterile water, was added to the plate. Plates were incubated for 15 minutes. The plates were transferred to a Lumiskan TM (ICN Biomedical, Cleveland, OH) microtiter luminometer, which added 40 ⁇ l/well Luciferase Assay substrate (Promega Corp.) . The amount of luminescence
- NNC92-0270 was analyzed for the ability to inhibit 125I-PDGF-BB binding to monolayers of rat SMCs.
- the SMCs were plated at approximately 20, 0O0 cells/well in 24-well culture dishes. The cells were J used for assay 2-7 days after plating.
- the test compound was diluted in binding media (500 ml Ham's F-12 (Gibco BRL), 12 ml IM Hepes pH 7.4, 5 ml lOOx PSN (Gibco BRL) , 1 gm rabbit serum albumin (Sigma Chemical Co., St. Louis, MO) to the concentrations shown in Table 2, then added to the SMCs (1 ml/well) in triplicate. To the wells was then added 50 ⁇ l of a 125 I-PDGF-BB stock solution.
- Binding media alone was used as the negative control, and the addition of 200 ng/ml of PDGF-BB was used to determine nonspecific binding for 125 I-PDGF-BB.
- the cells were incubated for approximately 1 1/2 hours at 4°C, then washed with binding media to remove unbound ligand.
- the cells were then incubated with extraction buffer (20 mM Tris-HCl, pH 8.0, 100 mM NaCl, 1 mM EDTA, 0.5% Nonident P-40, 0.5% sodium deoxycholate, 10 mM Nal, 1% bovine serum albumin) , and the extracts were harvested and counted in a gamma counter.
- Table 2 The results of the binding studies are shown in Table 2. The data are presented as specific cpm bound for 125 I-PDGF-BB. Nonspecific binding, determined by the addition of 200 ng/ml of unlabeled PDGF-BB, was 853 cpm, and has been subtracted from the data presented.
- NNC92-0270 is a potent inhibitor of PDGF-BB binding to cell-surface PDGF receptors.
- NNC92-0270 was subsequently analyzed for its ability to inhibit 125 I-PDGF-BB binding to rat SMCs when the radioligand was added to the cells in the presence of 10% human serum.
- the rat SMCs were plated into 24-well culture dishes and assayed as described above.
- the test compound was diluted to the concentrations shown in Table 3 in either binding media alone, or binding media containing 10% human serum, and 1 ml aliquots added to the test cells in triplicate. Fifty microiiters of a 20X stock solution of 125 I-PDGF-BB was added to each well. The cells were incubated for 2.5 hours at 4 °C, washed with binding media to remove unbound ligand, and harvested with extraction buffer.
- NNC92-0270 was analyzed for the ability to inhibit the mitogenic activity of PDGF on baboon smooth muscle cells. All mitogenesis assays performed on baboon vascular smooth muscle cells (BVSMCs) were done on primary cultures of cells between passages 13 and 20 in culture. The initial cultures were established from outgrowth of aortic tissue explants. Baboon smooth muscle cells were plated at approximately 20,000 cells per well, in DMEM supplemented with 10% fetal calf serum, into 24-well culture dishes. One day prior to use the culture media was removed, and 1 ml of Mito Media (Table 5) was added to each well to allow the cells to become quiescent. At the time of the experiment the cells were stimulated with PDGF-BB.
- BVSMCs baboon vascular smooth muscle cells
- NNC92-0270 To analyze the activity of NNC92-0270 to neutralize PDGF-BB mitogenic activity, 1 ng/ml of PDGF was added to wells along with dilutions of NNC92-0270. The cells were incubated with the test samples for approximately 20 hours at 37 °C. Fifty microiiters of a 20X stock solution of [3H] Thymidine was then added to each well to give a final concentration of 1 ⁇ Ci/ml. The cells were incubated for 4 hours at 37 °C, washed with PBS, then harvested with trypsin and counted for [ H] thymidine incorporation in a Wallac (Turku, Finland)
- Betaplate TM liquid scintillation counter The results, presented in Table 4, demonstrate that PDGF-BB mitogenic activity was inhibited by NNC92-0270 in a dose dependent fashion. The ED 50 for the inhibition was approximately 12.5 ⁇ M for NNC92-0270.
- NNC92-0270 As part of this same experiment, the inhibitory potency of NNC92-0270 was analyzed in the presence of heparin. We have previously demonstrated that heparin is able to act in a combinatorial manner with neutralizing monoclonal antibodies to the PDGF receptor to inhibit PDGF mitogenic activity on baboon smooth muscle cells. We wished to determine if the presence of heparin would have a similar potentiating effect with NNC92-0270 for inhibiting PDGF-BB mitogenic activity.
- NNC92-0270 was incubated with lng/ml of PDGF-BB in the presence of 0.5 U/ml of unfractionated heparin.
- the cells were pulse labeled with [ H] thymidine as described above and the level of [ H] thymidine determined. The results are presented in Table 4.
- NNC92-0270 was analyzed for prolonged inhibitory effect on PDGF-BB mitogenic activity on baboon smooth muscle cells in a wash-out experiment.
- SMCs were plated at 20,000 cells per well in a 24-well culture dish and grown for 2 days .
- the culture media was removed and replaced with Mito Media (Table 5) to allow the cells to become quiescent.
- the experiment was set up such that cells were treated with NNC92-0270 or vehicle control (0.5% DMSO) for either 24 hours prior to the addition of PDGF-BB, or sequentially with the addition of PDGF-BB.
- Those cells initially treated with NNC92-0270 or control vehicle for 24 hours were washed with Mito Media to remove the test compound and then incubated with PDGF-BB (lng/ml) for an additional 24 hours.
- a second set of cells was treated with NNC92-0270 or vehicle control simultaneously with PDGF-BB for 24 hours.
- the cells were pulse labeled for 4 hours with [ 3 H] thymidine
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50513097A JP3195363B2 (en) | 1995-06-30 | 1996-05-29 | 4- [2- (N-2-carboxamidoindole) aminoethyl] benzenesulfonamide or sulfonylurea as PDGF antagonist |
AT96916719T ATE265855T1 (en) | 1995-06-30 | 1996-05-29 | 4-(2-(N-(-2-CARBOXAMIDOINDOLE)AMINIETHYL)-BENZENESULFONAMIDES OR SULFONYL UREAS AS PDGF ANTAGONISTS |
EP96916719A EP0835115B1 (en) | 1995-06-30 | 1996-05-29 | 4-(2-(n-2-carboxamidoindole)aminoethyl)-benzenesulfonamides or sulfonylureas as pdgf antagonists |
AU59386/96A AU5938696A (en) | 1995-06-30 | 1996-05-29 | 4-(2-(n-2-carboxamidoindole)aminoethyl)-benzenesulfonamides or sulfonylureas as pdgf antagonists |
DE69632402T DE69632402T2 (en) | 1995-06-30 | 1996-05-29 | 4- (2- (N - (- 2-CARBOXAMIDOINDOLE) AMINIETHYL) -BENZENESULFONAMIDE OR SULPHONYL HARVES AS PDGF ANTAGONIST |
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US74395P | 1995-06-30 | 1995-06-30 | |
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EP (1) | EP0835115B1 (en) |
JP (1) | JP3195363B2 (en) |
AT (1) | ATE265855T1 (en) |
AU (1) | AU5938696A (en) |
DE (1) | DE69632402T2 (en) |
DK (1) | DK0835115T3 (en) |
ES (1) | ES2217313T3 (en) |
WO (1) | WO1997002036A1 (en) |
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US8128963B2 (en) * | 1996-09-27 | 2012-03-06 | The Trustees Of Columbia University In The City Of New York | Methods for treating ischemic disorders using carbon monoxide |
US7678390B2 (en) * | 1999-04-01 | 2010-03-16 | Yale University | Carbon monoxide as a biomarker and therapeutic agent |
US6776796B2 (en) | 2000-05-12 | 2004-08-17 | Cordis Corportation | Antiinflammatory drug and delivery device |
US20050002986A1 (en) * | 2000-05-12 | 2005-01-06 | Robert Falotico | Drug/drug delivery systems for the prevention and treatment of vascular disease |
US8236048B2 (en) * | 2000-05-12 | 2012-08-07 | Cordis Corporation | Drug/drug delivery systems for the prevention and treatment of vascular disease |
US20040243097A1 (en) * | 2000-05-12 | 2004-12-02 | Robert Falotico | Antiproliferative drug and delivery device |
EP1322235B2 (en) | 2000-09-29 | 2010-08-11 | Cordis Corporation | Coated medical devices |
US20020051730A1 (en) * | 2000-09-29 | 2002-05-02 | Stanko Bodnar | Coated medical devices and sterilization thereof |
US20020111590A1 (en) * | 2000-09-29 | 2002-08-15 | Davila Luis A. | Medical devices, drug coatings and methods for maintaining the drug coatings thereon |
US7261735B2 (en) * | 2001-05-07 | 2007-08-28 | Cordis Corporation | Local drug delivery devices and methods for maintaining the drug coatings thereon |
EP1404811B1 (en) * | 2001-06-21 | 2008-11-12 | Beth Israel Deaconess Medical Center, Inc. | Carbon monoxide improves outcomes in tissue and organ transplants and suppresses apoptosis |
US7195640B2 (en) * | 2001-09-25 | 2007-03-27 | Cordis Corporation | Coated medical devices for the treatment of vulnerable plaque |
US20030065345A1 (en) * | 2001-09-28 | 2003-04-03 | Kevin Weadock | Anastomosis devices and methods for treating anastomotic sites |
US7108701B2 (en) * | 2001-09-28 | 2006-09-19 | Ethicon, Inc. | Drug releasing anastomosis devices and methods for treating anastomotic sites |
US20030065377A1 (en) * | 2001-09-28 | 2003-04-03 | Davila Luis A. | Coated medical devices |
CN100393323C (en) * | 2002-02-13 | 2008-06-11 | 贝思·伊斯雷尔·迪科尼斯医药中心 | Methods of treating vascular disease |
JP4585765B2 (en) * | 2002-04-15 | 2010-11-24 | ユニバーシティ オブ ピッツバーグ オブ ザ コモンウェルス システム オブ ハイヤー エデュケイション | How to treat necrotizing enterocolitis |
WO2003088923A2 (en) * | 2002-04-15 | 2003-10-30 | University Of Pittsburgh Of The Commonwealth System Of Higher Education | Methods of treating ileus |
AU2003226366A1 (en) | 2002-04-15 | 2003-11-03 | Beth Israel Deaconess Medical Center | Use of heme oxygenase-1 and products of heme degradation |
WO2003096977A2 (en) * | 2002-05-17 | 2003-11-27 | Yale University | Methods of treating hepatitis |
EA200401622A1 (en) * | 2002-06-05 | 2005-06-30 | Йейл Юниверсити | METHODS OF TREATING ANGIOGENESIS, GROWTH OF TUMORS AND METASTASES |
JP2006514621A (en) * | 2002-11-07 | 2006-05-11 | ユニバーシティー オブ ピッツバーグ オブ ザ コモンウェルス システム オブ ハイヤー エデュケーション | Treatment of hemorrhagic shock |
CA2876822C (en) | 2003-08-27 | 2015-11-17 | David Shima | Combination therapy for the treatment of ocular neovascular disorders |
JP2009235057A (en) * | 2007-10-31 | 2009-10-15 | Santen Pharmaceut Co Ltd | New indole derivative having anti-angiogenesis activity |
US20120189641A1 (en) | 2009-02-25 | 2012-07-26 | OSI Pharmaceuticals, LLC | Combination anti-cancer therapy |
WO2010099138A2 (en) | 2009-02-27 | 2010-09-02 | Osi Pharmaceuticals, Inc. | Methods for the identification of agents that inhibit mesenchymal-like tumor cells or their formation |
WO2010099364A2 (en) | 2009-02-27 | 2010-09-02 | Osi Pharmaceuticals, Inc. | Methods for the identification of agents that inhibit mesenchymal-like tumor cells or their formation |
WO2010099363A1 (en) | 2009-02-27 | 2010-09-02 | Osi Pharmaceuticals, Inc. | Methods for the identification of agents that inhibit mesenchymal-like tumor cells or their formation |
WO2012149014A1 (en) | 2011-04-25 | 2012-11-01 | OSI Pharmaceuticals, LLC | Use of emt gene signatures in cancer drug discovery, diagnostics, and treatment |
WO2013152252A1 (en) | 2012-04-06 | 2013-10-10 | OSI Pharmaceuticals, LLC | Combination anti-cancer therapy |
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US5280016A (en) * | 1991-03-29 | 1994-01-18 | Glycomed Incorporated | Non-anticoagulant heparin derivatives |
AU670937B2 (en) * | 1992-04-28 | 1996-08-08 | Wyeth | Method of treating hyperproliferative vascular disease |
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1996
- 1996-05-29 US US08/657,470 patent/US5731326A/en not_active Expired - Fee Related
- 1996-05-29 DE DE69632402T patent/DE69632402T2/en not_active Expired - Fee Related
- 1996-05-29 ES ES96916719T patent/ES2217313T3/en not_active Expired - Lifetime
- 1996-05-29 JP JP50513097A patent/JP3195363B2/en not_active Expired - Fee Related
- 1996-05-29 AU AU59386/96A patent/AU5938696A/en not_active Abandoned
- 1996-05-29 DK DK96916719T patent/DK0835115T3/en active
- 1996-05-29 WO PCT/US1996/007881 patent/WO1997002036A1/en active IP Right Grant
- 1996-05-29 AT AT96916719T patent/ATE265855T1/en not_active IP Right Cessation
- 1996-05-29 EP EP96916719A patent/EP0835115B1/en not_active Expired - Lifetime
Patent Citations (3)
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FR6904M (en) * | 1966-05-14 | 1969-04-28 | ||
EP0604853A2 (en) * | 1992-12-28 | 1994-07-06 | Hoechst Japan Limited | Pharmaceutical composition for preventing or treating arteriosclerosis |
WO1996020718A2 (en) * | 1994-12-30 | 1996-07-11 | Zymogenetics, Inc. | Composition for inhibiting intimal hyperplasia using pdgf antagonists and heparin |
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Also Published As
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JP2001502292A (en) | 2001-02-20 |
JP3195363B2 (en) | 2001-08-06 |
US5731326A (en) | 1998-03-24 |
EP0835115B1 (en) | 2004-05-06 |
ATE265855T1 (en) | 2004-05-15 |
DE69632402T2 (en) | 2005-05-19 |
ES2217313T3 (en) | 2004-11-01 |
AU5938696A (en) | 1997-02-05 |
EP0835115A1 (en) | 1998-04-15 |
DE69632402D1 (en) | 2004-06-09 |
DK0835115T3 (en) | 2004-08-02 |
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