WO2016137162A1 - 청력 손상 방어용 펩타이드 및 이를 포함하는 조성물 - Google Patents
청력 손상 방어용 펩타이드 및 이를 포함하는 조성물 Download PDFInfo
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- WO2016137162A1 WO2016137162A1 PCT/KR2016/001646 KR2016001646W WO2016137162A1 WO 2016137162 A1 WO2016137162 A1 WO 2016137162A1 KR 2016001646 W KR2016001646 W KR 2016001646W WO 2016137162 A1 WO2016137162 A1 WO 2016137162A1
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- A61K38/00—Medicinal preparations containing peptides
- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/10—Peptides having 12 to 20 amino acids
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- A—HUMAN NECESSITIES
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- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/43—Enzymes; Proenzymes; Derivatives thereof
- A61K38/45—Transferases (2)
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- 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
- A23L33/17—Amino acids, peptides or proteins
- A23L33/18—Peptides; Protein hydrolysates
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- 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
- A23L33/40—Complete food formulations for specific consumer groups or specific purposes, e.g. infant formula
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P27/00—Drugs for disorders of the senses
- A61P27/16—Otologicals
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/08—Linear peptides containing only normal peptide links having 12 to 20 amino acids
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y207/00—Transferases transferring phosphorus-containing groups (2.7)
- C12Y207/07—Nucleotidyltransferases (2.7.7)
- C12Y207/07049—RNA-directed DNA polymerase (2.7.7.49), i.e. telomerase or reverse-transcriptase
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- 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
- the present invention relates to a peptide having hearing impairment defense efficacy and a pharmaceutical composition comprising the same. More specifically, the present invention relates to a peptide derived from telomerase, a peptide having a hearing damage defense effect by a toxic drug, and a pharmaceutical composition for preventing hearing damage.
- the anatomical structure of the ear is subdivided into the outer ear, middle ear and inner ear.
- the inner ear consists of cochlea for hearing, vestibule and semicircular canals for equilibrium, and the nerve nerves connected to it. to be.
- Hearing impairment is the result of damage to one or many parts of the outer, middle, or inner ear.
- omnic hearing loss is when there is a problem with the outside or middle ear that the sound cannot properly reach the inner ear.
- mixed hearing loss is a combination of sensorineural and prenegative hearing loss.
- neurological hearing loss occurs when the auditory nerve cannot transmit sound signals to the brain.
- Toxicity refers to a phenomenon in which the deterioration of tissues and dysfunction of inner ear, that is, peripheral organs and nerve tissues of hearing and vestibular function and tissue cells are caused by a therapeutic agent or chemical.
- Aminoglycoside antibiotics and platinum-based anticancer drugs are lethal to the kidneys and inner ear by repeated administration. In most cases, renal toxicity is often reversible, but the toxicity is permanent. Because of its toxicity, drugs that are excellent in their effectiveness are not primarily prescribed unless the effects of prescription are not severe enough to take the side effects of aminoglycoside antibiotics and platinum-based anticancer drugs.
- the mechanism of apoptosis by toxic drugs has been revealed little by little, and attempts and studies to prevent hearing loss by protecting hair cells by neutralizing ROS, inhibiting apoptosis enzymes, anti-inflammatory, and treating nerve agents have been conducted. Clinical application is insignificant due to the toxicity of the drug itself and the difficulty of delivery to the inner ear. The toxicity of aminoglycoside antibiotics progresses when the drug is absorbed into the inner ear and accumulates in the inner ear hair cells.
- Furosemide is a type of diuretic that promotes diuretic action. It is used in congestive heart failure, edema, hepatic edema, and hypertension. It has been shown to be potent diuretic and used in pregnancy toxicosis, ascites and peripheral angioedema, but has been reported to cause electrolyte imbalance and acute hypotension in large or long term administration. In addition, furosemide has also been reported to cause hearing impairment, tinnitus or hearing loss.
- telomerase-derived peptides were evaluated in toxic animal models.
- Experiments have demonstrated the effects of telomerase-derived peptides on hearing and ear endothelial damage, which are caused by stress such as toxic drugs, noise and hypoxia, and the final mechanism of hair cell damage is free radicals. Due to apoptosis, telomerase-derived peptides may be effective in repairing damaged inner ear as well as protecting against inner ear damage. Therefore, it can be applied to recovery and treatment of damaged inner ear. You can expect
- a peptide having a sequence homology of 80% or more with the amino acid sequence or a fragment thereof A composition can be provided.
- the fragment may be a fragment consisting of three or more amino acids.
- the hearing impairment may be characterized by administration of a toxic drug or treatment of a toxic drug.
- the toxic drug is at least one drug selected from the group consisting of salicylates, nonsteroidal anti-inflammatory drugs, antibiotics, diuretics, chemotherapeutic agents, quinine, mucoprotective agents, anticancer agents You can do
- the antibiotic may be an aminoglycoside antibiotic
- the anticancer agent may be a platinum-based anticancer agent
- the aminoglycoside antibiotic is kanamycin
- the platinum-based anticancer agent may be cisplatin or carboplatin.
- the diuretic may be characterized as furosemide.
- the hearing impairment may be characterized by deafness and tinnitus due to degenerative changes in peripheral organs and nervous tissues of the inner ear.
- the composition may be to provide a pharmaceutical composition.
- the composition may be to provide a food composition.
- a method for the treatment and prevention of hearing damage comprising the step of administering the composition for the treatment and prevention of hearing damage to a subject.
- the hearing damage treatment and prevention composition As according to another aspect of the invention, the hearing damage treatment and prevention composition; And kits for the treatment and prevention of hearing damage, including instructions.
- the instructions may include the content of administering the composition for the treatment and prevention of hearing damage.
- a peptide comprising the amino acid sequence of SEQ ID NO: 1 for preparing the composition for the treatment and prevention of hearing impairment, at least 80% sequence homology with the amino acid sequence
- the use of peptides having peptides or fragments thereof can be provided.
- compositions capable of effectively protecting hearing damage may be provided. Therefore, the composition according to the present invention can be applied to the treatment and prevention of hearing damage, and in particular can be used for the treatment of hearing damage due to the toxic drug.
- a peptide having a sequence of SEQ ID NO: 1 according to the present invention (PEP1) or a peptide or fragment having a sequence having a homology of 80% with the sequence has a peptide for treating and preventing hearing damage.
- FIG. 1 is a photograph of hair cells at the Apical, Middle and Basal Turns of the cochlear tissue of a toxic animal model administered kanamycin.
- Figure 2 is a photograph of hair cells at the attachment, middle, and base of the cochlear tissue of an animal model administered with kanamycin and PEP1 together.
- Figure 3 is a graph showing a comparison of the number of kanamycin administered with the kanamycin and PEP1 group, the number of hair cells by the attachment, the middle part, and the basal part by count (count).
- Figure 4 is a picture of H & E staining of cochlear and swollen tissue obtained from frozen sections in a toxic animal model administered kanamycin.
- FIG. 5 is a H & E staining picture of cochlear and swollen tissue obtained from frozen sections in an animal model administered with kanamycin and PEP1.
- Figure 6 is a graph showing the hearing loss through the auditory brainstem response test (ABR) of each frequency band of the group administered with kanamycin, and the group administered with kanamycin and PEP1 by concentration.
- ABR auditory brainstem response test
- Figure 7 is a picture of the hair cells of the cochlear tissue of the control group not administered PEP1 and the groups treated with concentrations of PEP1 twice a day for 2 weeks.
- FIG. 8 is a H & E staining picture of cochlear and swollen tissue obtained from frozen sections in a control group not administered with PEP1.
- FIG. 8 is a H & E staining picture of cochlear and swollen tissue obtained from frozen sections in a control group not administered with PEP1.
- FIG. 10 is a protocol graph showing the schedule of drug administration and auditory brainstem test of an experiment conducted on a schedule of experiments D1 and D3 with a toxic animal model administered with the toxic drugs kanamycin and furosemide.
- Figure 11 shows the change in the frequency of hearing between the experimental group 1, PEX1 administration group 2, dexamethasone (dexamethasone) administration group 2 and saline control group 1 administered the toxic drug according to the schedule of experiment D1, 7 days after administration and 14 days after drug administration.
- FIG. 12 shows the changes in the frequency of hearing between the experimental group 3 administered PEP1 to the toxic animal model, the experimental group 4 administered dexamethasone, and the control group 2 administered saline according to the schedule of Experiment D3 before and after the drug administration. It is a graph showing the values measured by the auditory brainstem test at 14 days after the drug administration.
- Figure 13 shows the hearing changes by frequency of the experimental group 1 and the experimental group 3 and P3 administered to the toxic animal model according to the schedule of experiments D1 and D3 before hearing the toxic drug, 7 days after drug administration, 14 days after drug administration
- a graph showing the values measured by the brainstem response test.
- FIG. 14 shows the basal and middle portions of the cochlea by performing a biopsy of experimental group 1 to which PEP1 was administered to the toxic animal model, experimental group 2 to which dexamethasone was administered, and control group 1 to which saline was administered according to the schedule of Experiment D1. Mid) and Apex's hair cell viability under a confocal scanning microscope.
- FIG. 15 shows the basal, middle, and attached hairs of the cochlea by performing biopsies of experimental group 3 administered PEP1, experimental group 4 administered dexamethasone, and control group 2 administered saline according to the schedule of Experiment D3. Cell viability was observed with a confocal scanning microscope.
- FIG. 16 shows the base of the cochlea, the middle part, and the normal attachment of the cochlea by performing a biopsy of the experimental group 1 to which PEP1 was administered to the toxic animal model according to the schedule of Experiment D1, the experimental group to which dexamethasone was administered, and the control group to which saline was administered. It is a graph showing the quantitative analysis of the hair cell ratio.
- the present invention may be variously modified and may have various embodiments.
- the present invention will be described in more detail. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention.
- the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.
- Telomere is a genetic material repeatedly present at the end of a chromosome and is known to prevent damage to the chromosome or binding to another chromosome. Each time a cell divides, the telomeres become slightly shorter. After a certain number of cell divisions, the telomeres become very short, and the cells stop dividing and die. On the other hand, elongation of telomeres is known to prolong cell life. For example, cancer cells secrete an enzyme called telomerase, which prevents telomeres from shortening, so that cancer cells can continue to proliferate without dying. The inventors have confirmed that peptides derived from telomerase are effective in inhibiting angiogenesis and have completed the present invention.
- Peptides disclosed herein can include peptides having at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, at least 99% homology.
- the peptides disclosed herein, peptides or fragments thereof comprising SEQ ID NO: 1 and one or more amino acids, two or more amino acids, three or more amino acids, four or more amino acids, five or more amino acids, six or more amino acids Or peptides with seven or more amino acids changed.
- amino acid changes belong to the property that allows the physicochemical properties of the peptide to be altered.
- amino acid changes can be made, such as improving the thermal stability of the peptide, altering substrate specificity, changing the optimal pH, and the like.
- a peptide having a sequence of SEQ ID NO: 1, a peptide which is a fragment of SEQ ID NO: 1, or a peptide having a sequence homology of 80% or more with the peptide sequence has low intracellular toxicity and stability in vivo according to an aspect of the present invention. This has the advantage of being high.
- SEQ ID NO: 1 in the present invention is a telomerase-derived peptide consisting of 16 amino acids as follows.
- the peptide described in SEQ ID NO: 1 is shown in Table 1 below.
- the "name” in Table 1 below is to distinguish peptides.
- the peptide set forth in SEQ ID NO: 1 represents the entire peptide of human telomerase.
- a peptide having a sequence of SEQ ID NO: 1, a peptide that is a fragment of SEQ ID NO: 1, or a peptide having a sequence homology of 80% or more with the peptide sequence corresponds to a peptide included in telomerase.
- synthetic peptides selected and synthesized at the positional peptides.
- SEQ ID 2 shows the amino acid sequence of the entire telomerase.
- Kanamycin used in the experiments of the present invention is an aminoglycoside antibiotic.
- Aminoglycosides are administered by injection because only 3% of the dose is absorbed by the stomach, and most of the drugs administered are excreted in the urine through glomerular filtration of the kidneys, and during renal failure the excretion is reduced and excessively in the perilymph fluid of the inner ear Accumulation is likely to cause toxicities such as nephrotoxicity.
- Kanamycin, together with neomycin, amikacin, sisomycin, and ribodomycin initially destroys the hair cells of the cochlear basal rotator and proceeds to the tip as the administration continues. It is a cochlear toxin that expands the fracture area.
- Furosemide used in the experiments of the present invention is used to treat hypertension or edema by removing unnecessarily accumulated water and salts as a diuretic. Furosemide has reported cases of tinnitus, hearing impairment, and hearing loss in the presence of high doses, hypoproteinemia, and in combination with other toxic drugs.
- Dexamethasone used in the experiment of the present invention is a synthetic corticosteroid (corticosteroid), it is used as an anti-inflammatory, immunosuppressant. It is used for the treatment of various inflammatory diseases and immunosuppressive agents, and it is effective in tinnitus, hearing damage and vestibular dysfunction. However, it has been reported that excessive administration excessively suppresses the immune action and has serious side effects in patients with eye or ear fungal infections.
- Auditory brainstem response used to examine hearing damage in the experiment of the present invention is a precision that determines the threshold of hearing by the average of the brain waves coming from the central part of the brain that can be obtained by sound stimulation Hearing test. Increasing the threshold value implies hearing loss.
- a peptide comprising the amino acid sequence of SEQ ID NO: 1 (comprising), a peptide having a hearing loss therapeutic efficacy which is a peptide or a fragment thereof having a sequence homology of 80% or more with the amino acid sequence as an active ingredient It provides a pharmaceutical composition.
- Hearing loss treatment efficacy composition is a peptide comprising the amino acid sequence of SEQ ID NO: 1 in one aspect, a peptide having a sequence homology of 80% or more with the amino acid sequence of 0.01g / L To 1kg / L, specifically 0.1g / L to 100g / L, more specifically may be included in the content of 1g / L to 10g / L, but if the difference in effect according to the dose can be adjusted appropriately.
- composition according to one aspect of the present invention can be applied to all animals including humans, dogs, chickens, pigs, cows, sheep, guinea pigs or monkeys.
- the composition provides a pharmaceutical composition comprising a peptide comprising the amino acid sequence of SEQ ID NO: 1, a peptide that is at least 80% sequence homology with the amino acid sequence or a fragment thereof.
- the pharmaceutical composition according to one aspect of the present invention may be administered orally, rectal, transdermal, intravenous, intramuscular, intraperitoneal, intramedullary, intradural or subcutaneous.
- Formulations for oral administration may be, but are not limited to, tablets, pills, soft or hard capsules, granules, powders, solutions or emulsions.
- Formulations for parenteral administration may be, but are not limited to, injections, drops, lotions, ointments, gels, creams, suspensions, emulsions, suppositories, patches or sprays.
- compositions according to one aspect of the invention may include additives such as diluents, excipients, lubricants, binders, disintegrants, buffers, dispersants, surfactants, colorants, flavoring or sweetening agents as needed.
- additives such as diluents, excipients, lubricants, binders, disintegrants, buffers, dispersants, surfactants, colorants, flavoring or sweetening agents as needed.
- Pharmaceutical compositions according to one aspect of the invention may be prepared by conventional methods in the art.
- the active ingredient of the pharmaceutical composition according to one aspect of the present invention will vary depending on the age, sex, weight, pathology and severity of the subject to be administered, the route of administration or the judgment of the prescriber. Dosage determination based on these factors is within the level of one of skill in the art and its daily dosage may be, for example, 10 ng / kg / day to 100 g / kg / day, specifically 0.1 ⁇ g / kg / day to 10 g / kg / day, More specifically, it may be 1 ⁇ g / kg / day to 1 g / kg / day, and more specifically, 2 ⁇ g / kg / day to 100 mg / kg / day. I can regulate it.
- the pharmaceutical composition according to an aspect of the present invention may be administered once to three times a day, but is not limited thereto.
- the composition provides a food composition comprising a peptide comprising the amino acid sequence of SEQ ID NO: 1 (comprising), a peptide having a sequence homology of 80% or more with the amino acid sequence or a fragment thereof as a active ingredient do.
- the formulation of the food composition according to one aspect of the present invention is not particularly limited, but may be, for example, formulated into tablets, granules, powders, solutions, solid preparations, and the like.
- Each formulation may be appropriately selected and formulated by those skilled in the art according to the formulation or purpose of use, in addition to the active ingredient, and may be synergistic when applied simultaneously with other raw materials.
- Preferred embodiments of the invention include the most optimal mode known to the inventors for carrying out the invention. Variations of the preferred embodiments may become apparent to those skilled in the art upon reading the foregoing description. The inventors expect those skilled in the art to make appropriate use of such variations, and the inventors expect the invention to be practiced in a manner different from that described herein. Accordingly, the invention includes all modifications and equivalents of the subject matter referred to in the appended claims, as permitted by patent law. Moreover, any combination of the abovementioned elements within all possible variations is included in the invention unless expressly stated to the contrary or apparently contradictory in context. While the invention has been particularly shown and described with reference to exemplary embodiments, those skilled in the art will understand that various changes in form and detail may be made without departing from the spirit and scope of the invention as defined by the following claims .
- PEP 1 The peptide of SEQ ID NO: 1 (hereinafter referred to as "PEP 1") was prepared according to the solid phase peptide synthesis known in the art. Specifically, peptides were synthesized by coupling amino acids one by one from the C-terminus through Fmoc solid phase synthesis (SPPS) using ASP48S (Peptron, Inc., Daejeon, Korea). As follows, the first amino acid at the C-terminus of the peptides was attached to the resin. For example:
- Coupling reagent is HBTU [2- (1H-Benzotriazole-1-yl) -1,1,3,3-tetamethylaminium hexafluorophosphate] / HOBt [N-Hydroxxybenzotriazole] / NMM [4-Methylmorpholine] It was. Fmoc removal was performed using piperidine in DMF in 20% of DMF.
- Each peptide was synthesized by repeating a process of reacting the amino acids with each other, washing with a solvent, and then deprotecting the amino acid using the state in which the amino acid protecting group was bound to the solid support.
- the synthesized peptide was separated from the resin and then purified by HPLC, and confirmed by MS and lyophilized.
- C57 / BL6 mice (4 weeks-6 weeks old, 15-25 g weight, males) were prepared for the experiment.
- kanamycin in the form of kanamycin sulfate (sulfate) was dissolved in saline solution at a concentration of 40 mg / ml, prepared as a preparation for 800 mg / kg injection administration, and PEP1, a peptide synthesized by the method according to Example 1, was 10 ml PBS. It was prepared as a preparation for injection administration by dissolving at a concentration of 100 mg of sugar.
- the toxic drug kanamycin and the peptide PEP1 according to the present invention were administered to the prepared experimental animals by dividing the experimental groups as follows.
- Experimental Group 1 Kanamycin 800 mg / kg S.C. (Subcutaneous injection) + saline 0.1 ml / 10g mouse I.P. (Abdominal injection)
- Experimental Group 2 Kanamycin 800 mg / kg S.C. + PEP1 10 mg / kg I.P.
- mice were euthanized, blood was collected and perfused with 4% paraformaldehyde (pH 7.4) diluted with 0.1 M phosphate buffered saline and organs (temporal bone) was taken.
- Tissue blocks were prepared by using an optimal cutting temperature compound (OCT compound), and then stored at ⁇ 80 ° C. to make slides, followed by H & E staining.
- OCT compound optimal cutting temperature compound
- the left temporal bone prepares the whole mount of the cochlea for quantitative analysis. Using microscopic instruments and microscopy, the bony labyrinth of the cochlea is carefully separated from the membraneous labyrinth, and the attachment and base are separated. Each is separated into side walls with vessels and basement membrane with cochlea and fixed with 4% paraformaldehyde. After 1 hour of reaction with 0.3% Triton-X, Alexa 488 phalloidin and 1% Bovine serum albumin (BSA) are prepared. Mix Alexa 488 paloidine dissolved in methanol with 1% bovine serum albumin to a ratio of 1: 100.
- BSA Bovine serum albumin
- the auditory brainstem test was performed before injection, 1 week after injection, 2 weeks after injection, and 3 weeks after injection.
- the stimulus was given 4 kHz, 8 kHz, 16 kHz, and 32 kHz negative stimuli, and the threshold value was determined as the smallest stimulus intensity in which 5 waveforms appeared in the ABR.
- Basal hearing was measured in all groups prior to the start of drug administration, and was performed after anesthesia by intraperitoneal injection of isoprene (isoflorane).
- the auditory brainstem test thresholds were summed for each frequency, and the hearing thresholds in experimental group 1 and group 2 were verified using the Mann-Whitney test.
- the auditory brainstem test showed changes in hearing over time after drug administration.
- the threshold value increased with time, but in experimental group 2, the threshold value was insignificant. (See FIG. 6).
- the difference in outcome between the two groups was statistically significant (* is p ⁇ 0.001).
- mice C57 / BL6 mice (4 weeks-6 weeks old, weight 15-25 g, male) were prepared for the experiment.
- PEP1 synthesized by the method according to Example 1 and saline as a control group were prepared.
- PEP1 was prepared by setting the basic 10mg / ml concentration in 1 solution unit.
- Control group and concentration-specific PEP1 administration group was prepared by dividing into the following experimental group.
- Intraperitoneal injection at a dose of 0.1 ml / 10 g mouse weight at a time in each concentration of the experimental group. Injections were made twice daily (9 am and 5 pm) for 7 days.
- C57 / BL6 mice (5 weeks old, 15-25 g, female) were administered kanamycin (1000 mg / kg) by intraperitoneal administration with an ototoxicity animal model and furosemide (100 mg / kg) within 30 minutes. kg) was prepared by injection.
- the experiment name was designated as D1 (see FIG. 10).
- Experimental group 1 8 toxic animal models subcutaneous injection subcutaneously injected with PEP1 (10 mg / kg) at 1, 2, and 3 days after kanamycin and furosemide
- Experimental group 2 8 toxic animal models subcutaneously administered dexamethasone (15 mg / kg) at 1, 2, and 3 days after kanamycin and furosemide
- Control 1 Eight toxic animal models administered saline each 1, 2, and 3 days after kanamycin and furosemide
- Experimental Group 3 Eight Toxicity Animal Models Subcutaneous Injection Subcutaneously Injected with PEP1 (10mg / kg) at Days 3, 4 and 5 After Kanamycin and Furosemide Administration
- Experimental group 4 8 toxic animal models subcutaneously administered dexamethasone (15 mg / kg) at 3, 4 and 5 days after kanamycin and furosemide
- Control 2 Eight toxic animal models with saline at 3, 4 and 5 days after kanamycin and furosemide
- Auditory brainstem test was performed before kanamycin and furosemide (Day 0), 7 days after dosing, and 14 days after dosing (same tests were conducted for both Experiments D1 and D3).
- the stimulus was given a stimulus of 8 kHz, 16 kHz, and 32 kHz, and the threshold value was determined as the smallest stimulus intensity of 5 waveforms in the ABR.
- Basal hearing was measured in all groups prior to the start of drug administration, and was performed after anesthesia by intraperitoneal injection of isoprene (isoflorane).
- mice After 14 days of kanamycin and furosemide, mice were euthanized after the auditory brainstem test, and then otic capsules were harvested and the degree of hair cells damage was observed by confocal scanning microscopy. .
- Hearing threshold measured by auditory brainsensor test and hair group values measured by histological examination were statistically processed to confirm the significance. ANOVA test was used here.
- experiment D3 the hearing change according to the frequency of administration was observed, and experimental group 3, which was administered with PEP1, was measured 14 days after kanamycin and furosemide compared to experimental group 2, which was treated with saline and dexamethasone.
- Experiment D1 saline was observed from viability of basal, mid, and apex of the cochlea by histological examination on day 14 after kanamycin and furosemide administration.
- control group 1 administered overall damage of the hair cells was observed in the base, middle, and attachment of the cochlea, and normal hair cells were observed in the experimental group 1 administered with PEP1 and the experimental group 2 administered with dexamethasone (see FIG. 14).
- experiment D3 the viability of hair cells in basal, middle, and attachment of the cochlea was examined by histological examination performed on day 14 after kanamycin and furosemide. The overall damage of the hair cells was observed in, and normal hair cells were observed in the experimental group 3 administered with PEP1 and the experimental group 4 administered with dexamethasone (see FIG. 15).
- experiment D1 the quantitative analysis of hair cell survival rate showed that the percentage of normal hair cells in experimental group 1, which was treated with PEP1 at the base and middle part of the cochlea, was higher than that of control group 1, which was treated with saline.
- the ratio of normal hair cells in experimental group 1 to which PEP1 was administered tended to be higher than that of experimental group 2 to which dexamethasone was administered (see FIG. 16).
- experiment D3 the quantitative analysis of hair cell survival rate showed that the percentage of normal hair cells in experimental group 3, which was treated with PEP1 at the base and middle part of the cochlea, was higher than that of control group 2, which was treated with saline.
- the ratio of normal hair cells in the experimental group 3 to which PEP1 was administered showed a higher tendency than the experimental group 4 to which dexamethasone was administered (see FIG. 17).
- PEP1 prevents damage to organs and tissues for hearing and hearing from drugs causing hearing impairment. PEP1 prevents hearing damage, but does not show toxicity to hearing organs following administration. In addition, the administration of PEP1 protects the hearing from the toxic hearing damage caused by the administration of two or more substances showing the toxicity through the experiment in Example 4, in particular, dexamethasone known as a conventional hearing damage improvement agent Compared to the case of administration, it can be seen that administration of PEP1 has a better prevention and improvement of hearing damage symptoms.
- the composition containing PEP1 is not toxic by administration while preventing and improving hearing damage, and can be used to treat and prevent hearing damage as a more effective and safe pharmaceutical composition for the treatment and prevention of hearing damage. It can be seen.
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Abstract
Description
Claims (14)
- 서열번호 1의 아미노산 서열을 포함하는 펩티드, 상기 아미노산 서열과 80% 이상의 서열 상동성을 갖는 펩티드 또는 그 단편인 펩티드를 포함하는 청력 손상 치료 및 예방용 조성물.
- 제 1 항에 있어서, 상기 단편은 3개 이상의 아미노산으로 구성된 단편인 청력 손상 치료 및 예방용 조성물.
- 제 1 항에 있어서, 상기 청력 손상은 이독성 약물의 투여 또는 이독성 약물 치료에 의한 것을 특징으로 하는 청력 손상 치료 및 예방용 조성물.
- 제 3 항에 있어서, 상기 이독성 약물은 살리실산염, 비스테로이드성 소염제, 항생제, 이뇨제, 화학치료제, 퀴닌, 점막보호제, 항암제를 포함하여 구성된 그룹에서 선택된 하나 이상의 약물인 것을 특징으로 하는 청력 손상 치료 및 예방용 조성물.
- 제 4 항에 있어서, 상기 항생제는 아미노글리코사이드계 항생제이며, 상기 항암제는 백금계 항암제인 것을 특징으로 하는 청력 손상 치료 및 예방용 조성물.
- 제 5 항에 있어서, 상기 아미노글리코사이드계 항생제는 카나마이신이며, 상기 백금계 항암제는 시스플라틴 또는 카보플라틴인 것을 특징으로 하는 청력 손상 치료 및 예방용 조성물.
- 제 4 항에 있어서 상기 이뇨제는 푸로세미드인 것을 특징으로 하는 청력 손상 치료 및 예방용 조성물.
- 제 1 항에 있어서, 상기 청력 손상은 내이의 말초기관 및 신경조직의 퇴행성 변화에 따른 난청 및 이명현상인 것을 특징으로 하는 청력 손상 치료 및 예방용 조성물.
- 제 1 내지 8 항 중 어느 한 항에 있어서, 제약학적으로 허용 가능한 첨가제를 더 포함하는 약학 조성물인 청력 손상 치료 및 예방용 조성물.
- 제 1 내지 8 항 중 어느 한 항에 있어서, 상기 조성물은 식품 조성물인 청력 손상 치료 및 예방용 조성물.
- 제 1 내지 8 항 중 어느 한 항에 따른 청력 손상 치료 및 예방용 조성물을 대상에게 투여하는 단계를 포함하는 청력 손상 치료 및 예방방법.
- 제 1 내지 8 항 중 어느 한 항에 따른 청력 손상 치료 및 예방용 조성물; 및 설명서를 포함하는 청력 손상의 치료 및 예방용 키트.
- 제 12 항에 있어서, 상기 설명서는 상기 청력 손상 치료 및 예방용 조성물을 투여하는 내용을 포함하는 청력 손상의 치료 및 예방용 키트.
- 청력 손상에 있어, 제 1항 내지 제 8 항 중 어느 한 항에 따른 청력 손상 치료 및 예방용 조성물을 제조하기 위한, 서열번호 1의 아미노산 서열을 포함하는 펩티드, 상기 아미노산 서열과 80% 이상의 서열 상동성을 갖는 펩티드 또는 그 단편인 펩티드의 용도.
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CN201680012553.6A CN107405380B (zh) | 2015-02-27 | 2016-02-18 | 用于预防听觉损伤的肽及其包含该肽的组合物 |
ES16755812T ES2799511T3 (es) | 2015-02-27 | 2016-02-18 | Péptido para prevenir la pérdida de audición, y composición que lo comprende |
EP16755812.1A EP3263122B1 (en) | 2015-02-27 | 2016-02-18 | Peptide for preventing hearing loss, and composition comprising same |
KR1020177024619A KR102636129B1 (ko) | 2015-02-27 | 2016-02-18 | 청력 손상 방어용 펩타이드 및 이를 포함하는 조성물 |
JP2017545367A JP6751097B2 (ja) | 2015-02-27 | 2016-02-18 | 聴力損傷予防用ペプチド及びそれを含む組成物 |
HK18108561.2A HK1249013A1 (zh) | 2015-02-27 | 2018-07-03 | 用於預防聽覺損傷的肽及其包含該肽的組合物 |
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- 2016-02-18 ES ES16755812T patent/ES2799511T3/es active Active
- 2016-02-18 WO PCT/KR2016/001646 patent/WO2016137162A1/ko active Application Filing
- 2016-02-18 KR KR1020177024619A patent/KR102636129B1/ko active IP Right Grant
- 2016-02-18 JP JP2017545367A patent/JP6751097B2/ja active Active
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US10835582B2 (en) | 2015-02-27 | 2020-11-17 | Gemvax & Kael Co. Ltd. | Peptide for preventing hearing loss, and composition comprising same |
US10925961B2 (en) | 2015-03-20 | 2021-02-23 | The Trustees Of The University Of Pennsylvania | Vaccines with CD40 ligand as an adjuvant |
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Also Published As
Publication number | Publication date |
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JP6751097B2 (ja) | 2020-09-02 |
EP3263122A1 (en) | 2018-01-03 |
EP3263122A4 (en) | 2018-09-12 |
CN107405380A (zh) | 2017-11-28 |
ES2799511T3 (es) | 2020-12-18 |
EP3263122B1 (en) | 2020-05-06 |
HK1249013A1 (zh) | 2018-10-26 |
KR102636129B1 (ko) | 2024-02-14 |
JP2018512387A (ja) | 2018-05-17 |
CN107405380B (zh) | 2021-04-20 |
US10835582B2 (en) | 2020-11-17 |
US20180036384A1 (en) | 2018-02-08 |
KR20170115072A (ko) | 2017-10-16 |
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