WO2021143392A1 - 调节免疫功能或治疗免疫相关疾病的药物 - Google Patents
调节免疫功能或治疗免疫相关疾病的药物 Download PDFInfo
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- WO2021143392A1 WO2021143392A1 PCT/CN2020/134171 CN2020134171W WO2021143392A1 WO 2021143392 A1 WO2021143392 A1 WO 2021143392A1 CN 2020134171 W CN2020134171 W CN 2020134171W WO 2021143392 A1 WO2021143392 A1 WO 2021143392A1
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- WIPO (PCT)
- Prior art keywords
- polysaccharide
- polysaccharides
- fish
- fish body
- body surface
- Prior art date
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Images
Classifications
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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
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/715—Polysaccharides, i.e. having more than five saccharide radicals attached to each other by glycosidic linkages; Derivatives thereof, e.g. ethers, esters
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- 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
- A23L33/125—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives containing carbohydrate syrups; containing sugars; containing sugar alcohols; containing starch hydrolysates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
-
- 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
- A61P37/00—Drugs for immunological or allergic disorders
- A61P37/02—Immunomodulators
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
Definitions
- This application relates to the field of biomedicine, in particular to methods for preparing fish body surface polysaccharides and fish body surface digestive polysaccharides and their applications.
- Cyclophosphamide is a cytotoxic drug that suppresses the immune system. It has been used to treat a variety of diseases, such as the treatment of vasculitis, multiple sclerosis, lupus erythematosus and Wegener's granulomatosis. However, cyclophosphamide can induce immunosuppression in patients, leading to low immune function in patients and forming an immunodeficiency state.
- Fish body surface polysaccharide is a kind of polysaccharide obtained from fish body surface. It is reported that it has anti-oxidation, scavenging oxygen free radicals and other active functions.
- a method for preparing fish body surface polysaccharides and fish body surface digestive polysaccharides is provided, and the preparation of fish body surface polysaccharides and fish body surface digestive polysaccharides is related to the preparation of immune function regulation or immune treatment.
- Application of medicines for diseases is provided.
- a medicine for regulating immune function or treating immune-related diseases comprising fish body surface polysaccharide or fish body surface digestive polysaccharide and optionally at least one pharmaceutically acceptable excipient.
- mice injected with cyclophosphamide by administering fish surface polysaccharide or its body surface digestive polysaccharide, it can restore the macrophage phagocytosis rate and B lymphocyte proliferation rate caused by cyclophosphamide in mice to a certain extent.
- T lymphocyte proliferation rate, NK cell vitality decline has the effect of restoring the vitality of mouse macrophages, B lymphocytes, T lymphocytes, and NK cells, and can increase the serum hemolysin content of mice, indicating that Fish body surface polysaccharides and their body surface digestive polysaccharides have varying degrees of repairing/improving the immunity of mice, thereby being able to treat immune-related diseases.
- the immune-related disease is tumor or cancer.
- the fish is a fish that has no phosphorus or tiny scales and secretes polysaccharides on the body surface.
- the fish body surface polysaccharide is rice eel polysaccharide, catfish polysaccharide, yellow fin fish polysaccharide, long-snout yellow fin fish polysaccharide or eel polysaccharide;
- the fish body surface digestive polysaccharide is rice eel digestive polysaccharide, catfish Digestion of polysaccharides, yellowtail fish digestion polysaccharides, long-snout yellowtail fish digestion polysaccharides or eel digestion polysaccharides.
- a method for preparing polysaccharides on the surface of fish comprising:
- the precipitate is dried to obtain the polysaccharide on the surface of the fish.
- At least one of the following (a) to (f) is included:
- the temperature of the high temperature water is about 70°C to about 90°C;
- the weight-volume ratio of the fish body to the high-temperature water is about 1:1 to 2;
- the enzyme is selected from at least one of papain, neutral protease, and alkaline protease;
- the temperature of the enzymatic hydrolysis is about 50°C to about 70°C;
- the alcohol is ethanol
- the concentration of ethanol after mixing the ethanol and the concentrated solution is greater than about 70%.
- a method for preparing digested polysaccharides on the surface of fish including:
- the filtrate is dried to obtain digested polysaccharides on the surface of fish.
- a health food for enhancing immunity including fish body surface polysaccharide or fish body surface digestive polysaccharide.
- the fish body surface polysaccharide or fish body surface digestive polysaccharide in the health food of the present application enhances immunity by increasing the serum hemolysin content.
- the fish body surface polysaccharide is rice eel polysaccharide, catfish polysaccharide, yellow fin fish polysaccharide, long-snout yellow fin fish polysaccharide or eel polysaccharide; fish body surface digestive polysaccharide is rice eel digestive polysaccharide, catfish digestive polysaccharide , Yellow finfish digests polysaccharides, long-snout finfish digests polysaccharides or eels digests polysaccharides.
- Fig. 1 is a flowchart of a method for preparing polysaccharides on the surface of fish according to an embodiment
- Fig. 2 is a flowchart of a method for preparing digested polysaccharides on the surface of fish according to an embodiment
- Figure 3 is a graph showing changes in body weight of polysaccharide mice after cyclophosphamide injection
- Fig. 4 is a graph showing the results of measuring the immune organ index of polysaccharide mice
- Figures 5A to 5F are diagrams showing the phagocytosis experiment of polysaccharide mouse macrophages
- Figure 6A is a graph showing the results of determination of phagocytic rate of polysaccharide mouse macrophages
- Fig. 6B is a graph showing the measurement result of the phagocytic index of polysaccharide mouse macrophages
- Figure 7A is a graph showing the proliferation rate of T lymphocytes in polysaccharide mice.
- Figure 7B is a graph showing the proliferation rate of B lymphocytes in polysaccharide mice.
- Figure 8 is a graph showing the activity of NK cells in polysaccharide mice.
- Figure 9 is a diagram showing the results of the HC50 of the serum hemolysis test in mice with digested polysaccharides
- Figure 10 is a graph showing changes in body weight of mice digested with polysaccharides after injection of cyclophosphamide
- Figure 11 is a graph showing the results of the immune organ index measurement of mice that digested polysaccharides
- Figures 12A-12F are diagrams showing the phagocytosis experiment of mouse macrophages that digested polysaccharides
- Figure 13A is a graph showing the results of measuring the phagocytic rate of macrophages in mice that digested polysaccharides
- Figure 13B is a graph showing the results of measuring the phagocytic index of macrophages in mice that digested polysaccharides
- Figure 14A is a graph showing the proliferation rate of T lymphocytes in mice that digest polysaccharides
- Figure 14B is a graph showing the proliferation rate of B lymphocytes in mice that digest polysaccharides
- Figure 15 is a graph showing the activity of NK cells in mice that digest polysaccharides
- Fig. 16 is a graph showing the HC50 result of the serum hemolysis test of the digested polysaccharide mouse.
- a medicine for regulating immune function or treating immune-related diseases comprising fish body surface polysaccharide or fish body surface digestive polysaccharide and optionally at least one pharmaceutically acceptable excipient.
- the disease is a tumor, cancer, or virus-related disease.
- the medicament of this embodiment is used to regulate immune function, especially to enhance immune function, or to treat immune-related diseases, or to enhance immune function to treat diseases.
- the immune-related diseases of this embodiment can be induced by immunosuppressive agents, such as cyclophosphamide, and can also be caused by environmental factors.
- the immune-related disease is a disease that can be treated by restoring macrophage viability or NK cell viability; and/or increasing serum hemolysin content, enhancing T cell or B cell proliferation and activity.
- the medicine of this embodiment can be prepared according to a method known to those skilled in the art.
- the drugs of this embodiment are tablets, pills, soft capsules, granules, powders, solutions, syrups, and any other suitable dosage forms.
- the excipients of this embodiment may be excipients well known to those skilled in the art, such as binders, fillers, disintegrants, lubricants in tablets; wine, vinegar, concoctions, etc. in pills; semi-solids The base part of preparations ointments and creams; preservatives, antioxidants, correctives, fragrances, cosolvents, emulsifiers, solubilizers, osmotic pressure regulators, coloring agents, etc. in liquid preparations.
- the drug of this embodiment can be administered orally. It can also be administered by injection, for example, via intraperitoneal, intramuscular, intraarterial, intravenous, subcutaneous, and intradermal routes.
- fish body surface polysaccharide is a kind of polysaccharide obtained from fish body surface.
- Fish are non-phosphorus or tiny scale fish that secrete polysaccharides on the surface.
- Fish body surface digestion polysaccharide is a substance obtained by anaerobic culture after mixing the solution of fish body surface polysaccharide digested by the gastrointestinal tract and the intestinal bacterial liquid in vitro.
- the polysaccharide on the surface of the fish is rice field eel polysaccharide, catfish polysaccharide, yellow caraway polysaccharide, long-snout yellow caraway polysaccharide or eel polysaccharide.
- this application also provides the application of fish body surface polysaccharides and fish body surface digestive polysaccharides in the preparation of drugs for regulating immune function or treating immune-related diseases.
- the inventor of the present application found that in mice injected with cyclophosphamide, by administering fish surface polysaccharides or fish surface digestive polysaccharides, the macrophage phagocytic rate and B of the mice caused by cyclophosphamide can be restored to a certain extent.
- the proliferation rate of lymphocytes, the proliferation rate of T lymphocytes, and the decline of NK cell vitality can restore the vitality of mouse macrophages, B lymphocytes, T lymphocytes, and NK cells, and can increase the serum hemolysin content of mice.
- the effect of the fish body surface polysaccharides and fish body surface digestive polysaccharides have varying degrees of repairing/improving the immunity of mice, thereby being able to treat immune-related diseases.
- a method for preparing the above-mentioned fish body surface polysaccharide includes:
- step S100 the fish body is treated with high-temperature water, and the mucus on the surface of the fish body is collected.
- the temperature of the high-temperature water is about 70°C to about 90°C.
- the weight-volume ratio of the fish body to the high-temperature water is about 1:1 ⁇ 2;
- step S110 the enzyme is added to the fish body surface mucus for enzymatic hydrolysis to obtain an enzymatic hydrolysate.
- the enzyme is selected from at least one of papain, neutral protease, and alkaline protease.
- the weight of the enzyme is 0.05% of the weight of the fish body, and the temperature of enzymatic hydrolysis is about 50°C to about 70°C; specifically, it can be 60°C or 65°C.
- the enzymatic hydrolysis can be kept in a water bath at 60°C for about 6 hours, heated to boiling, and kept for 20 minutes;
- step S120 the enzymolysis solution is allowed to stand for precipitation and filtered.
- catfish diatomaceous earth 0.2% by weight of catfish diatomaceous earth is added to the enzymolysis solution, and the mixture is stirred uniformly, and then allowed to stand at 4°C for 4 hours.
- step S130 the filtrate is concentrated to obtain a concentrated solution.
- Step S140 adding alcohol to the concentrated solution to obtain a precipitate.
- the alcohol is a high concentration of 95% ethanol.
- concentration of ethanol mixed with the concentrated solution is greater than about 70%. Specifically, a white or off-white precipitate was obtained by centrifugation at 4° C. and 10000 r/min for 10 min.
- step S150 the precipitate is dried to obtain the polysaccharide on the surface of the fish.
- the precipitate was washed twice with 95% ethanol, and then dried by blowing at 60° C. to obtain an off-white powder.
- the fish body surface digestible polysaccharides are rice field eel digestive polysaccharides, catfish digestive polysaccharides, yellow catfish digestive polysaccharides, long-snout yellow catfish digestive polysaccharides or eel digestive polysaccharides.
- a method for preparing digestible polysaccharides on the surface of fish includes:
- step S200 the fish body surface polysaccharide is mixed with the in vitro simulated gastric juice for digestion to obtain a fish body surface polysaccharide solution after gastric juice digestion.
- step S210 the digested fish body surface polysaccharide solution is added to the simulated intestinal digestive juice in vitro to obtain the fish body surface polysaccharide solution after digestion of the gastrointestinal juice.
- step S220 the fish body surface polysaccharide solution after digestion of the gastrointestinal juice is mixed with the isolated intestinal bacterial solution, followed by anaerobic culture, sterilization, and filtration to obtain a filtrate.
- step S230 the filtrate is dried to obtain digested polysaccharides on the surface of fish.
- the step of adjusting the pH of the fish body surface polysaccharide solution after gastric juice digestion to 7 is included.
- the preparation of in vitro simulated gastric juice includes:
- gastric electrolyte solution containing 3.1g/L NaCl, 1.1g/LKCl, 0.15g/LCaCl 2 , 0.6g/L NaHCO 3 ; then add 250mL gastric electrolyte solution to 187.5mg pepsin and 165mg gastric lipase, and mix well; Adjust the pH value to 2 ⁇ 0.2 with HCl; and/or;
- the preparation of in vitro simulated intestinal fluid includes: preparing an intestinal electrolyte solution containing 5.4g/L NaCl, 0.65g/L KCl, and 0.33g/L CaCl 2 ; mixing 70g/L pancreatin and pancreatin solution with intestinal electrolyte solution in a volume ratio of 1:1 Mix well and adjust the pH value to 7 ⁇ 0.2 with NaHCO 3.
- a health food for enhancing immunity including fish body surface polysaccharides or fish digestive body surface polysaccharides.
- the fish body surface polysaccharide and the fish body surface digestive polysaccharide can improve the immune function by increasing the serum hemolysin content.
- the polysaccharides on the surface of fish are rice eel polysaccharides, catfish polysaccharides, yellow finfish polysaccharides, long-snout finfish polysaccharides or eel polysaccharides.
- the digested polysaccharides on the fish body surface are rice eel digestive polysaccharides, catfish digestive polysaccharides, yellow minnow digestive polysaccharides, long-snout yellow minnow digestive polysaccharides or eel digestive polysaccharides.
- the health food of this embodiment may also contain other components commonly used in foods, such as various additives.
- the fish body surface polysaccharides used in the following Examples 1 to 4 can be prepared according to the method described in the Chinese patent (application number 201811215236.1). Or according to Qin Chuanguang et al. (Qin Chuanguang, Huang Kaixun, Xu Huibi, Study on the immune function of loach polysaccharides, Chinese Pharmaceutical Journal, Vol. 37 No. 8, August 2002).
- Standard curve of sulfuric acid-phenol method accurately weigh 100mg of glucose reference substance, place it in a 1000mL volumetric flask, add an appropriate amount of water to dissolve, dilute to the mark, and shake well to obtain 0.1mg/mL glucose mother liquor. Pipette 0.4, 0.8, 1.2, 1.6, 2.0 mL of glucose mother liquor into 25 mL test tubes, add water to make up to 2.0 mL, add 1.0 mL of 5% phenol aqueous solution and mix well. Then quickly add 5 mL of concentrated sulfuric acid, shake well for 30 seconds after 10 minutes, and bath in a water bath at 30°C for 20 minutes.
- Sample preparation Precisely weigh an appropriate amount of sample, place it in a 25mL volumetric flask, add an appropriate amount of water to dissolve, dilute to the mark, and shake well to obtain a sample solution. Pipette 1mL of the sample to 25mL and stopper the test tube, add water to make up to 2.0mL, add 1.0mL of 5% phenol aqueous solution and mix well. Then quickly add 5 mL of concentrated sulfuric acid, shake well for 30 seconds after 10 minutes, and bath in a water bath at 30°C for 20 minutes. Accurately draw 150 ⁇ l of glucose solution into a 96-well plate, and measure the absorbance with the reagent blank solution at a wavelength of 490nm as a reference.
- Concentration of polysaccharide on fish body surface ⁇ 0.1707 ⁇ (A sample-A blank)+0.0007 ⁇ /1 ⁇ 2 ⁇ 25/M sampling volume ⁇ 100%.
- gastric electrolyte solution 1.55g NaCl, 0.55g KCl, 0.075g CaCl 2 , 0.3g NaHCO 3 dissolved in 0.5L of deionized water.
- in vitro simulated gastric juice Add 250 mL of gastric electrolyte solution to 187.5 mg of pepsin and 165 mg of gastric lipase, mix well, and adjust the pH to 2 with 1 mol/L HCl.
- Intestinal electrolyte solution 0.54g NaCl, 0.065g KCl, 0.033g CaCl 2 dissolved in 100 mL of deionized water.
- pancreatin Dissolve 7g pancreatin in 100mL water, centrifuge at 4800 ⁇ g for 10 minutes, and take the supernatant for use.
- In vitro simulated intestinal fluid Add 90 mL of intestinal electrolyte solution to 90 mL of pancreatin solution, mix well, and adjust the pH to 7 with 1 mol/L NaHCO 3.
- A is 7.5 mL (1% K 2 HPO 4 ⁇ 3H 2 O); B is 37.5 mL (0.47% KH 2 PO 4 , 1.18% NaCl, 1.2% (NH 4 ) 2 SO 4 , 0.16% CaCl 2 ⁇ H 2) O, 0.45% MgSO 4 ⁇ 7H 2 O); C is 50 mL (8% Na 2 CO 3 ); 0.5 g L-cysteine, 2 mL (25% L-ascorbic acid), 1 g beef extract, 1 g peptone. Add an appropriate amount of ultrapure water above, adjust the pH to 7.5-7.7 with 1mol/L HCl, and dilute the volume to 1000mL. The obtained medium is distributed in a tube, autoclaved at 115°C at 0.07MPa for 30min, stored at 4°C or used immediately.
- mice Male clean grade Bclb/c mice, 18g ⁇ 2g (5w), 90 mice, 6 groups, 15 mice in each group.
- model mice 75 randomly selected were injected intraperitoneally with cyclophosphamide at a dose of 80 mg/kg/d, and the control group was given the same volume of normal saline.
- A Normal group: normal saline 200 ⁇ l/d, continuous gastric gavage for 28 days, once a day;
- Model group normal saline 200 ⁇ l/d, continuous gavage for 28 days, once a day;
- Drug group 1 dose 250mg/kg/d, continuous gavage for 28 days, once a day;
- Drug group 2 dose 250mg/kg/d, continuous gastric gavage for 28 days, once a day;
- Drug group 3 dose 250mg/kg/d, continuous gastric gavage for 28 days, once a day;
- Drug group 4 dosage 250mg/kg/d, continuous gastric gavage for 28 days, once a day;
- the medicine of the medicine 1 group adopts the rice field eel polysaccharide of example 1
- the medicine of the medicine group 2 adopts the catfish polysaccharide of example 2
- the medicine of the medicine group 3 adopts the yellow fish polysaccharide of example 3 and the medicine of the medicine 4 group. 4 eel polysaccharides.
- mice were weighed, and 3 mice were randomly selected for the mouse macrophage phagocytosis experiment; 3 mice were used for the splenic lymphocyte transformation experiment; 3 mice were used for the NK cell viability test , 3 mice were taken from eyeballs and serum was taken for subsequent testing. At the same time, these 3 mice were sacrificed by cervical dislocation, and their spleens and thymus were taken and weighed; 2% SRBC 0.2mL for five consecutive days).
- mice were weighed, and the weight change and mental state of the mice were observed.
- drug groups 1 to 4 can all improve mouse thymus injury caused by cyclophosphamide to a certain extent, and drug groups 1 to 2 have significant differences.
- mice were sacrificed after 30 minutes. After fixing the mice, cut the mouse epidermis gently and tear it (do not cut the peritoneum layer);
- Figure 5A is the result of the normal group
- Figure 5B is the result of the model group
- Figure 5C is the result of the drug group 1
- Figure 5D is the result of the drug group 2
- Figure 5E is the result of the drug group 3
- Figure 5F is the result of the drug group 4 result.
- Drug groups 1 to 4 can restore to a certain extent the decrease in macrophage phagocytic index caused by cyclophosphamide in mice, indicating that drugs 1 to 4 have the effect of restoring the viability of macrophages in mice.
- drug group 3 There is a significant difference;
- Drug groups 1 to 4 all recovered to a certain extent the problem of decreased macrophage phagocytic rate caused by cyclophosphamide in mice, indicating that drugs 1 to 4 have the effect of restoring the viability of mouse macrophages, of which drug group 3 has Significant difference.
- mice were sacrificed by cervical dislocation, soaked in 75% alcohol for 5 minutes;
- Each sample has 3 groups (control group, LPS group, ConA group), each group has three replicates, the final concentration of LPS is 1 ⁇ g/mL, and the final concentration of ConA is 5 ⁇ g/mL;
- mice were killed by cervical dislocation, the spleen was taken out under aseptic conditions, and washed several times with sterile HANK'S solution;
- Drugs in groups 1 to 4 can restore to a certain extent the decreased NK cell viability caused by cyclophosphamide in mice, suggesting that drugs 1 to 4 have the effect of restoring the viability of NK cells in mice, among which drug groups 3 have significant differences.
- mice in each group were intraperitoneally injected with 200 ⁇ l of 2% SRBC;
- the HC50 of the model group is lower than that of the normal group, and there is a significant difference, which indicates that the antibody production ability of the model group is lower than that of the normal group;
- the following examples 6-9 used fish body surface polysaccharide raw materials can be prepared according to the above-mentioned examples 1 to 4; or according to Qin Chuanguang et al. (Qin Chuanguang, Huang Kaixun, Xu Huibi, Study on the immune function of loach polysaccharides, Chinese Pharmaceuticals Journal, August 2002, Volume 37, Issue 8) method; it can also be scraped after killing fish at high temperature.
- Monopterus albus polysaccharide dissolve it in 20 mL purified water, mix well with 80 mL of in vitro simulated gastric juice, and digest it in a shaker at 150r/min and 37°C. Take it out after 2h, adjust the pH of the solution to 7 with 1mol/L NaHCO 3 , then add 48 mL of in vitro simulated intestinal digestion to the Erlenmeyer flask, mix well, and digest in a shaker at 150r/min at 37°C.
- catfish polysaccharide Take 1 part of catfish polysaccharide, dissolve it in 20mL purified water, mix well with 80mL in vitro simulated gastric juice, digest it in a shaker at 150r/min, 37°C; take it out after 2h, adjust the pH of the solution to 7 with 1mol/L NaHCO 3, Then, 48 mL of in vitro simulated intestinal digestion solution was added to the Erlenmeyer flask, mixed thoroughly, and digested in a shaker at 150r/min and 37°C.
- mice Male clean grade Bclb/c mice, 18g ⁇ 2g (5w), 90 mice, 6 groups, 15 mice in each group.
- model mice 75 randomly selected were injected intraperitoneally with cyclophosphamide at a dose of 80 mg/kg/d, and the control group was given the same volume of normal saline.
- A Normal group: normal saline 200ul/d, continuous gavage for 28 days, once a day;
- Model group normal saline 200ul/d, continuous gavage for 28 days, once a day;
- Drug group 1 dose 250mg/kg/d, continuous gavage for 28 days, once a day;
- Drug group 2 dose 250mg/kg/d, continuous gastric gavage for 28 days, once a day;
- Drug group 3 dose 250mg/kg/d, continuous gastric gavage for 28 days, once a day;
- Drug group 4 dosage 250mg/kg/d, continuous gastric gavage for 28 days, once a day;
- mice were weighed, and 3 mice were randomly selected for the mouse macrophage phagocytosis experiment; 3 mice were used for the splenic lymphocyte transformation experiment; 3 mice were used for the NK cell viability test , 3 mice were taken from eyeballs and serum was taken for subsequent testing. At the same time, these 3 mice were sacrificed by cervical dislocation, and their spleens and thymus were taken to be weighed; 3 mice were used for the determination of serum hemolysin (injection into the intraperitoneal cavity every day for five days before administration) 2% SRBC 0.2ml for five consecutive days).
- mice were weighed, and the weight change and mental state of the mice were observed.
- drug groups 1 to 4 can all improve mouse thymus injury caused by cyclophosphamide to a certain extent, and drug groups 2 to 4 have significant differences.
- Fig. 12A is the result of the normal group
- Fig. 12B is the result of the model group
- Fig. 12C is the result of the drug 1 group
- Fig. 12D is the result of the drug 2 group
- Fig. 12E is the result of the drug 3 group
- Fig. 12F is the result of the drug 4 group result.
- Drugs 1 to 4 can all restore to a certain extent the decrease in macrophage phagocytic index caused by cyclophosphamide in mice, suggesting that drugs 1 to 4 have the effect of restoring the viability of mouse macrophages, among which drug 1, 3 to 4 groups have significant differences;
- Drugs in groups 1 to 4 can restore to a certain extent the decrease in the proliferation rate of T lymphocytes in mice caused by cyclophosphamide, suggesting that drugs 1 to 4 have the effect of restoring the vitality of T lymphocytes in mice, and drugs 1 to 4 Both groups have significant differences;
- Drug groups 1 to 4 can restore to a certain extent the decreased NK cell viability caused by cyclophosphamide in mice, suggesting that drugs 1 to 4 have the effect of restoring the viability of NK cells in mice. Both drug groups 1 to 4 and the model group have Significant difference.
- the rice field eel polysaccharides, catfish polysaccharides, yellow catfish polysaccharides, long snout polysaccharides, digested rice field eel polysaccharides, digested catfish polysaccharides, digested yellow catfish polysaccharides, and digested long snout polysaccharides all have excellent immune function enhancement effects. .
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Abstract
Description
Claims (15)
- 一种调节免疫功能或治疗免疫相关疾病的药物,包括鱼类体表多糖或鱼类体表消化多糖及任选至少一种药学上可接受的赋形剂。
- 根据权利要求1所述的药物,其中所述免疫相关疾病为肿瘤或癌症。
- 根据权利要求1所述的药物,其中所述免疫相关疾病是能通过恢复巨噬细胞活力或NK细胞活力;和/或,提高血清溶血素含量、增强T细胞或B细胞增殖及活性治疗的疾病。
- 根据权利要求1所述的药物,其中所述鱼类为无磷或微小鳞片的且分泌体表多糖的鱼类。
- 根据权利要求1所述的药物,其中所述鱼类体表多糖为黄鳝多糖、鲶鱼多糖、黄鲿鱼多糖、长吻黄鲿鱼多糖或鳗鱼多糖;所述鱼类体表消化多糖为黄鳝消化多糖、鲶鱼消化多糖、黄鲿鱼消化多糖、长吻黄鲿鱼消化多糖或鳗鱼消化多糖。
- 一种制备鱼类体表多糖的方法,包括:用高温水处理鱼体,收集鱼类体表层黏液;将酶加入所述鱼类体表层黏液进行酶解,以得到酶解液;将所述酶解液静置沉淀,并过滤;将滤液进行浓缩,得到浓缩液;将醇加入所述浓缩液,以得到沉淀物;及将所述沉淀物进行干燥,得到所述鱼类体表多糖。
- 根据权利要求6所述的方法,其中所述高温水的温度为约70℃至约90℃。
- 根据权利要求6所述的方法,其中所述鱼体与所述高温水的重量体积比为约1:1~2。
- 根据权利要求6所述的方法,其中所述酶选自木瓜蛋白酶、中性蛋白酶、碱性蛋白酶中的至少一种。
- 根据权利要求6所述的方法,其中所述酶解的温度为约50℃至约70℃。
- 根据权利要求6所述的方法,其中所述醇为乙醇。
- 根据权利要求11所述的方法,其中所述乙醇与所述浓缩液混合后的乙醇的浓度大于约70%。
- 一种制备鱼类体表消化多糖的方法,包括:将鱼类体表多糖与体外模拟胃液混合进行消化,得到胃液消化后的鱼类体表多糖溶液;将所述消化后的鱼类体表多糖溶液加入体外模拟的肠消化液,得到胃肠液消化后的鱼类体表多糖溶液;将所述胃肠液消化后的鱼类体表多糖溶液与离体肠道菌液混合,依次经过厌氧培养、灭菌、过滤,得到滤液;及将所述滤液进行干燥,得到所述鱼类体表消化多糖。
- 一种增强免疫力的保健食品,包括鱼类体表多糖或鱼类体表消化多糖。
- 根据权利要求14所述的保健食品,其中所述鱼类体表多糖为黄鳝多糖、鲶鱼多糖、黄鲿鱼多糖、长吻黄鲿鱼多糖或鳗鱼多糖;鱼类体表消化多糖为黄鳝消化多糖、鲶鱼消化多糖、 黄鲿鱼消化多糖、长吻黄鲿鱼消化多糖或鳗鱼消化多糖。
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