• 专利附录
  • 专利说明
  • 权利要求
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  • 优先权
    • 专利摘要:
    A method and composition for treating allergic diseases and/or airway inflammation including pollinosis, bronchial asthma, allergic rhinitis, atopic dermatitis and anaphylactic shock with the administration to a subject an amount of an anti-infectious agent such as ribavirin and optionally combined with an anti-inflammatory agent selected from inhaled steroids, leukotriene receptor antagonists and beta-2 receptor agonist.
    公开号:SE534514C2
    申请号:SE0802191
    申请日:2006-03-14
    公开日:2011-09-20
    发明作者:Bor-Luen Chiang；Chung-Sheng Huang
    申请人:Wholesome Biopharm Pty Ltd；
    IPC主号:
    专利说明:

    534 514 2FN-γ and TNF (tumor necrosis factor1-ß (derivative of Th1 cells) and IL-4, 11L-5, 11L-6, 11L-9 and | L-10 (derivative of Th2- cells) are produced in the activated T cells, thus affecting the produced cell activating substance T cells and B cells so that they participate in proliferation and differentiation. Furthermore, when IL-4 produced in T cells is added, B cells are differentiated into IgE-producing cells by a class switch. In mast cells, two molecules of IgE are combined with a polyvalent antigen to form a bridge various chemical media, such as histamine, are secreted from the mast cell during degranulation and can increase capillary permeability, contract muscles and increase mucus secretion, along with prostaglandins and leukotrienes recently produced via metabolism. a arachidonic acid inside the membrane, resulting in the following: itching, redness, urticaria or hives, angioedema of the skin; cough, suffocation, chest tightness, difficulty breathing and lack of oxygen in the respiratory system; fainting, low blood pressure and arrhythmia of the cardiovascular system; nausea, vomiting and diarrhea of the digestive tract; and numbness, dizziness, headache, seizures and unconsciousness in the nervous system.
    The medications currently used to relieve various allergic symptoms have the disadvantage of having a temporary effect and causing side effects with long-term treatment. Antibiotics cannot affect the inhibition of IL-6, which is known to play an important role in the pathogenesis of chronic mucus exudation developed in young children. It has been suggested that IL-6 can be controlled with antibiotics and steroids for a long time. However, long-term administration of antibiotics and steroids can cause side effects such as inhibition of immune function throughout the body.
    The inventors have conducted extensive clinical studies and experiments with the aim of finding a new treatment for various allergic diseases without any side effects.
    As a result, the inventors discovered that a suitable nucleotide analogue, ribavirin, has an excellent anti-inflammatory effect without the usual side effects and thus completed the present invention. In particular, the method and composition of the invention increase the immunity of a host to inhibit inflammation and control allergy.
    SUMMARY OF THE INVENTION The object of this invention is to provide methods and compositions for treating an individual susceptible to or suffering from allergic diseases such as pollinosis or hay fever, bronchial asthma, allergic rhinitis or hay fever, atopic dermatitis or flexural eczema and anaphylactic shock. Thus, on the one hand, the invention provides a method for treating an individual susceptible to or suffering from allergic diseases, which comprises administering an effective dose of anti-infective agent and, optionally, an anti-inflammatory agent to the individual. On the other hand, the invention provides a pharmaceutical composition for the treatment of an individual susceptible to or suffering from allergic diseases, which comprises an effective dose of an anti-infective agent and, optionally, an effective dose of an anti-inflammatory agent and a pharmaceutically acceptable carrier.
    In a preferred embodiment, the invention provides a method of treating allergic diseases, which comprises administering an effective dose of an anti-infective agent to an individual. In this method, the anti-infective agent is administered intranasally and the amount of anti-infective agent used is between 5 and 20 pg / kg of the individual's body weight. In another preferred embodiment, such a method also comprises administering an effective dose of an anti-inflammatory agent before, during and / or after the administration of the anti-infective agent to the individual. The anti-inflammatory agent is selected from the group consisting of an inhaled steroid, an antagonist of the leukotriene receptor and an agonist of the βZ receptor, and the amount of the anti-inflammatory agent used is between 5-10 pg / kg of the individual's body weight. Both the anti-infective agent and the anti-inflammatory agent are advantageously administered intranasally. In a further preferred embodiment, the invention provides a pharmaceutical composition for the treatment of allergic diseases, which comprises an effective dose of anti-infective agent. In this composition, the anti-infective agent is administered intranasally and the amount of anti-infective agent used is between 5 and 20 pg / kg of the individual's body weight. In another preferred embodiment, such a composition also comprises an effective dose of an anti-inflammatory agent selected from the group consisting of an inhaled steroid, an antagonist of the leukotriene receptor and an agonist of the β2-receptor. The anti-inflammatory agent can be used before, with and / or after the anti-infective agent, and in an amount of 5-10 pg / kg of the individual's body weight.
    Both the anti-infective agent and the anti-inflammatory agent are advantageously administered intranasally.
    These and other aspects and advantages will become apparent when the description is read in conjunction with the accompanying examples. It is to be understood that both the foregoing general description and the following detailed description are given by way of example, and are intended to further illustrate the present invention.
    DESCRIPTION OF THE FIGURES The accompanying drawings are included to provide a further understanding of the invention, and form part of this specification. The drawings illustrate the embodiments of the invention and together with the description explain the principles of the invention. In the drawings Fig. 1 illustrates the OVA protocol used according to a preferred embodiment of the invention; Fig. 2 illustrates the effect of ribavirin on Mch-induced airway responsiveness in OVA-sensitized mice according to a preferred embodiment of the invention, different concentrations of ribavirin were given intranasally (0, 10, 30 mg / ml) after treatment with OVA, the results are presented as a mean 10 15 20 25 534 514 5 + standard deviation with 5 mice in each group, the experiments were repeated 3 times with similar results, * P <0.05 compared to the control group (without treatment with ribavirin); Fig. 3 is a bar graph illustrating the effect of ribavirin on cell filtration in the airways of mice, in which (a) is the effect of ribavirin on the total cell number in 3 ml of BAL fluid and (b) is the effect of ribavirin on the cell number of each cell type including monocytes, neutrophils, eosinophils and lymphocytes; the experiments were repeated 3 times with similar results, * P <0.05 and #P <0.01 compared to the control group (without treatment with ribavirin); Fig. 4 are photographs showing the morphology of the lung tissue in OVA-sensitized mice treated with or without ribavirin, where (A) is a phase contrast photograph showing lung tissue in OVA-sensitized mice after treatment with 30 mg / ml ribavirin, (B) is a phase contrast photograph showing lung tissue in OVA-sensitized mice after treatment with 10 mg / ml ribavirin, and (C) is an image of lung tissue in OVA-sensitized mice without ribavirin treatment; the tissue sections were stained with hematoxylin and eosin and studied under a light microscope (magnification x400); and Fig. 5 illustrates the levels of INF-γ (a), IL-4 (b), KC (c) and eotaxin (d) in BAL fluid in mice in Example 1.1 measured by ELISA, the experiments were repeated 2 times with similar results, * P <0.05 compared to the control group (without treatment with ribavirin).
    DESCRIPTION OF THE INVENTION Described embodiments and terminology used herein are intended to describe exemplary embodiments, and are not intended to be limiting.
    The scope of the present invention is intended to cover additional embodiments not specifically described herein, but which would be apparent to those skilled in the art upon reading the present description and practice of the invention. The present invention relates to a new solution for the treatment of allergic diseases such as hay fever, bronchial asthma, allergic rhinitis or hay fever, flexural eczema and anaphylactic shock with an anti-infective agent and, optionally, an anti-inflammatory agent. Thus, in one embodiment, the invention provides a method of treating an individual susceptible to or suffering from allergic diseases, which comprises administering an effective dose of anti-infective agent to the individual. In a preferred embodiment, the anti-infective agent is ribavirin.
    The method may further comprise a further step of administering an amount of anti-inflammatory agent before, during and / or after the use of the anti-infective agent. The anti-inflammatory agent includes, but is not limited to, an inhaled steroid, an antagonist of the leukotriene receptor, and an agonist of the βZ receptor. A suitable example of inhaled steroid includes, but is not limited to, corticosteroid, e.g. budesonide, betamethasone, dexamethasone, methylprednisolone, prednisolone, prednisone, fl unisolid, triamquinolone acetonide and fluticasone propionate. Commercially available products that contain inhaled steroids are e.g. FLIXONASE, FLIXOTIDE, FLUTICASONE, PULMICORT, FLOVENT, AEROBID, AZNACORT and ADVAIR. The antagonist of the leukotriene receptor includes, but is not limited to, selective antagonists of the BLT receptor such as SB209247, SC53228, CP195543, CGS25019C and LY293111; and selective CysLT1 receptor antagonists such as SR2640, SKF104353, ICl20421919, MK476 and LY170680. As for the agonist of the [52] receptor, the examples include, but are not limited to, procaterol, zinterol, salmeterol, fonnoterol, terbutaline and fenoterol.
    The anti-infective agent and / or the anti-inflammatory agent may be administered in the same or different ways, including topically, internally, intranasally, intravenously, or intraperitoneally. Both the anti-infective agent and / or the anti-inflammatory agent are advantageously administered directly in the respiratory tract of the individual, e.g.
    Alternatively, the anti-infective agent may be administered intranasally, while the anti-inflammatory agent is administered topically, internally, intravenously or intraperitoneally. intranasal administration in the form of aerosol particles.
    The anti-infective agent can be administered in a dose of 1-50 ug / kg of the individual's body weight. A preferred range for the anti-infective agent dosage is 5-20 ug / kg of the individual's body weight if administered intranasally. In cases where the anti-infective agent is used in conjunction with an anti-inflammatory agent which is administered in another manner, e.g. via subcutaneous injection, the preferred dose of the anti-infective agent is 5-30 ug / kg of the individual's body weight.
    The anti-inflammatory agent can be administered in a dose of 0.5-1 ug / kg of the individual's body weight. A preferred range for the dosage of the anti-inflammatory agent is 5-10 ug / kg of the individual's body weight. The appropriate dosage for the anti-infective agent and the anti-inflammatory agent may be the same or different, and may be further adjusted with respect to sex, age and / or the patient's medical history and may be readily determined by a physician experienced in the art.
    The individual can be a mammal, especially a human.
    A preferred embodiment of the present invention provides a method of treating an individual susceptible to or suffering from allergic diseases, which comprises administering an effective dose of anti-infective agent to the individual. The anti-infective agent is ribavirin and the anti-inflammatory agent includes, but is not limited to, an inhaled steroid, an antagonist of the leukotriene receptor, and an agonist of the βZ receptor.
    Suitable examples of the inhaled steroid, the antagonist of the leukotriene receptor and the agonist of the βZ receptor have been described previously.
    The preferred both dosage and routes of administration of the anti-infective agent and the anti-inflammatory agent are also described above.
    In another preferred embodiment, the invention provides a medicament comprising aerosol particles containing an anti-infective agent and, optionally, an anti-inflammatory agent as well as a pharmaceutically acceptable carrier. This medicine is useful in the treatment of allergic diseases such as hives, bronchial asthma, allergic rhinitis or hay fever, flexural eczema and anaphylactic shock.
    Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although other methods and materials similar to or equivalent to those described herein may be used in the practice or testing of the present invention, the preferred methods and materials will be described. All publications mentioned are marked with reference. The techniques used or can be used here are standard methods well known to those skilled in the art unless otherwise indicated. Materials, methods and examples are illustrative only and not restrictive.
    The singular forms "en / ett", "and" and "den / det" are used here to include a number of references unless otherwise clearly stated in the context. All figures indicating quantities of ingredients, reaction conditions and so on used in the present application are to be construed as modifiable in all examples by the use of the word "approximately" except in the operative examples or unless otherwise indicated. Thus, all numerical parameters set forth in the present application are approximations which may vary depending on the desired properties which are expected to be obtained from the present invention unless otherwise indicated. EXAMPLES The following examples are described for the purpose of illustrating certain aspects of the present invention and to facilitate the practice of this invention to those skilled in the art. These examples are in no way to be construed as limiting the scope of the invention.
    Animal BALB / c mouse females were provided from and housed at the Animal Center of the College of Medicine of National Taiwan University (Taiwan, R.0.C.).
    The animals were used between 6 and 10 weeks of age and the age was adjusted in each experiment. The protocol for the animal experiments was approved by the Animal Committee of the College of Medicine of National Taiwan University (Taiwan, R.0.C.).
    Ovalbumin (OVA) protocol for sensitizing mice and administering ribavirin for induction of airway hypenensitivity (AHR) The mice were randomly divided into 4 groups and sensitized by an intraperitoneal injection of OVA (10 pg) complexed with aluminum potassium, 2 mg) during day 0. All mice received an additional injection of OVA (10 pg) on days 14 and 28, respectively. The mice in the negative control group were injected with phosphate buffer solution (PBS). Mice in the remaining 3 groups fi ck 20 μl of 0, 10 or 30 mg / ml ribavirin together with intranasal dose of 0.05 mg OVA during each day 38-40. AHR for mice in each group was measured during day 41 and all mice were bled and was killed on day 42 when the trial ended. Fig. 1 shows the timeline of the above-described OVA protocol used in this study.
    Measurement of AHR The effect of ribavirin on airway responsiveness to methacholine in spray form (Mch) in OVA-sensitized mice was estimated by the following procedures. First, mice were sensitized with OVA according to the procedure described above, then the animals were treated with increasing concentrations of Mch (0, 6.25, 12.5, 25 and 50 mg / ml respectively) with or without ribavirin (the positive control group was treated with saline, while the rest of the mice were treated with 10 and 30 mg / ml ribavirin, respectively, intranasally, and whole body plethysmography was then measured by reading pressure differences between the main chamber of the plethysmography containing the animal and a reference chamber. Each reading lasted for 3 minutes and the average was calculated for the entire time after the spray treatment. Calculated data were expressed as values deviating from the baseline, ie. from values measured during the treatment with saline solution, using the dimensionless parameter Penh. The results are shown in Fig. 2. Fig. 2 shows that Penh increased with increasing Mch concentration, and the mice that were sensitized with OVA but did not receive any ribavirin treatment developed markedly increased responsiveness to metacholin in the airways. Intranasal administration of ribavirin inhibited the increase in airway responsiveness to Mch in OVA-sensitized mice compared to mice treated with PBS.
    Therapeutic effects of ribavirin on eosinophilic airway inflammation Possible relief of airway inhalation in OVA-sensitized mice during treatment with ribavirin was determined by analyzing the cell composition of the BAL fluid from the sensitized mice 48 hours after the last dose. In summary, all groups of OVA-sensitized mice were emptied of blood via retroorbital venous plexus and sacrificed. The lung was washed immediately via the tracheal cannula with 3x1 ml HBSS free of ionized calcium and magnesium. The wash was centrifuged at 400xg for 10 minutes at 4 ° C. After washing, the cells were resuspended in 1 ml of HBSS and the total cell number was determined using a hemocytometer. Cytocentrifuged preparations were stained with Liu's dye for different cell numbers. At least 200 cells were counted and classified as macrophages, lymphocytes, neutrophils and eosinophils based on common morphological criteria. The results are shown in Fig. 3.
    It has been shown that exposure to OVA intranasally often elicited a marked increase in the number of neutrophils and eosinophils in the BAL fluid of the mice in the positive control group (Fig. 3). In contrast, treatment with ribavirin (10 or 30 mg / ml) decreased not only the total number of cells (Fig. 3A), but also the number of respective cell types including monocytes, neutrols and eosinols (Fig. 38).
    After washing, the lungs were removed immediately and xered in 10% neutral buffered formalin, processed routinely and embedded in the paraffin.
    Five micrometer sections were prepared and stained with hematoxylin and eosin and then studied under a light microscope, with results shown in Fig. 4. It is clear that ribavirin (Figs. 4a and 4b, 30 and 10 mg / ml, respectively) could effectively inhibit cell filtration and reduce the pathological lung damage in this OVA-sensitized model.
    Therapeutic effects of ribavirin on chemokine levels BAL fluid OVA-sensitized mice were washed according to the procedure described above and chemokine levels were estimated using ELISA kits (R&D) according to the manufacturer's instructions. Taking the measurement of eotaxin as an example, the BAL fluid was collected and added to wells covered with anti-eotaxin antibodies overnight at 4 ° C. After incubation for 2 hours, the plates were washed and biotin-conjugated antibodies were added. After an additional 2 hours at room temperature, HRP-avidin was added and OD values (at 450 nm) were converted to eotaxin concentrations in the BAL liquid. The levels of other chemokines including KC, IL-4 and INF-γ can be measured according to similar procedures.
    Results are shown in Fig. 5.
    It has been shown that the levels of INF-γ (Fig. 5a) and IL-4 (Fig. 5b) in OVA-sensitized mice were not affected by ribavirin, however, the levels of both eotaxin and KC decreased significantly when ribavirin was administered.
    The results suggest that effect on ribavirin has therapeutic tracheal inflammation in asthma. Industrial 15/534 514 12 Industrial Applicability The advantage of the present invention is that it provides a new solution for the treatment of allergic diseases by using an anti-infective agent, and, optionally, an anti-inflammatory agent. The method and composition of the present invention can increase the host's immunity to inhibit inhalation and control allergies and thereby provide treatment of allergic diseases such as hay fever, bronchial asthma, allergic rhinitis or hay fever, flexural eczema and anaphylactic shock.
    The foregoing description of various embodiments of the invention has been presented for illustrative and descriptive purposes. It is not intended to be exhaustive or to limit the described invention to those embodiments. Numerous modifications or variations are possible in light of the above description. The embodiments discussed herein were selected and described to provide the best illustration of the principles of the invention and its practical application to enable those skilled in the art to practice the invention in various embodiments and with various modifications appropriate to the particular use of interest. All such modifications and variations are within the scope of the invention as defined by the appended claims when interpreted according to the breadth to which they are lawfully, lawfully and reasonably justified.
    权利要求:
    Claims (4)
    [1]
    An intranasal pharmaceutical composition for the treatment of respiratory inflammation and / or allergic disease, which composition comprises an effective dose of ribavirin as the sole active substance for administration in an amount between 5-20 ug / kg of the individual's body weight, and a pharmaceutically acceptable carrier.
    [2]
    The composition of claim 1, wherein the airway inflammation and / or the allergic disease is selected from hay fever, bronchial asthma, allergic rhinitis or hay fever, flexural eczema and anaphylactic shock.
    [3]
    Use of ribavirin alone as active substance for the manufacture of an intranasal medicinal product for the treatment of respiratory inflammation and / or allergic disease intended for administration in an amount between 5-20 uglkg of the individual's body weight.
    [4]
    The use in claim 3, wherein the airway inflammation and / or allergic disease is selected from hay fever, bronchial asthma, allergic rhinitis or hay fever, flexural eczema and anaphylactic shock.
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
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