WO2019103203A1 - Novel peptide and composition comprising same - Google Patents

Abstract

The present specification relates to a novel peptide and a composition comprising the same and, more particularly, discloses a novel peptide showing the prophylactic and therapeutic efficacy of anti-inflammation, anti-fibrosis, wound healing, and anticancer, and a composition comprising the same. The novel peptide and the composition comprising the same, disclosed in the present specification, exhibit the effect of alleviating, preventing, and treating symptoms such as inflammation, fibrosis, wounds, and diseases such as cancer including the symptoms and thus can provide a prophylactic and therapeutic method for related diseases.

Description

Novel peptides and compositions comprising them

TECHNICAL FIELD The present invention relates to novel peptides and compositions containing the same, and more particularly to compositions effective for anti-inflammation, anti-fibrosis, wound healing, skin improvement and chemotherapy, including novel peptides.

Tumor necrosis factor (TNF), especially TNF-a, is released from inflammatory cells and is known to cause a variety of cytotoxic, immune and inflammatory responses. It has been known that TNF-a is involved in the development of many inflammatory diseases and autoimmune diseases and naturalization (prolongation), and when released into the blood to act on the whole body, it causes serious sepsis and septic shock. As described above, since TNF-a is a factor widely involved in the immune system of a living body, development of drugs that inhibit TNF-a has been actively carried out. TNF-α is biosynthesized in an inactive form and cleaved by a protease to become an active form. An enzyme involved in this activation is called a tumor necrosis factor-converting enzyme (TACE). Therefore, the substance that inhibits this TACE can treat, ameliorate, and prevent the diseases, condition, abnormal condition, and bad subjective symptoms caused by TNF-α (KR2011-0060940A).

Fibrosis is a disease in which abnormal formation, accumulation and deposition of extracellular matrix by fibroblasts occurs. It refers to an abnormal accumulation of collagen matrix due to injury or inflammation that changes the structure and function of various tissues. Regardless of the location of the onset of fibrosis, most of the etiology of fibrosis involves excessive accumulation of the collagen matrix that replaces normal tissue. Fibrosis, particularly in the kidneys, liver, lungs, heart, bone or bone marrow, and skin, can lead to organ dysfunction and even death in the worst case. The fibroblasts function to form a precursor of extracellular matrix in a normal state to form a fibrous tissue. The extracellular matrix, which is the intercellular material of the connective tissue, is present in the form of proteins such as fibronectin, laminin, chondronectin, and collagen.

On the other hand, TGF-β plays a diverse role in the abnormal production and accumulation of extracellular matrix by fibroblasts such as cell proliferation, inflammation reaction, and cancer cell metastasis, and many cellular signaling pathways and targets are identified have. Thus, studies on TGF-β have been carried out in many disease models. Fibrotic diseases and cancers are the most active areas of research and drug development. TGF-β is a cell growth regulator, which induces or restricts cell proliferation and plays an important role in the pathogenesis of various diseases including cancer, heart disease and diabetes, and various physiological activities have been reported. For example, inhibition of TGF-beta synthesis, inhibition of TGF-beta antagonist, inhibition of PDGF (Platelet-Derived Growth Factor) antagonist, p38 MAP kinase inhibitor (inhibiting cell proliferation signal transduction enzyme), and anti-inflammation (suppression of TNF-alpha and MAPK production). Therefore, if a new medicinal composition capable of inhibiting TGF-beta more directly or interrupting the signal transduction process involving TGF-beta can be developed, prevention and treatment of various diseases and aging caused by fibrosis are performed You can do it.

The wound healing process is divided into four stages: inflammation, granulation, epithelialization, and fibroplasia. In the inflammation, the necessary cells (fibroblasts, epithelial cells, etc.) are activated. In the child-bearing period, fibroblasts deposit collagen, which increases collagen and matures the wound. In addition, keratinocyte changes in the wound area, epithelial thickening of the defect, thickening of epithelium cells from the basal cells below the epidermis to the epidermis, The collagen fibers form a collagenous matrix through the epithelializer to the fiber proliferators. The collagen fibers form a collagenous matrix, which covers the wound-defective area. When this is done for a long time, the collagen fibers heal. Therefore, epithelial cell proliferation and collagen production may be one of the important mechanisms of wound healing and anti-aging.

Under these circumstances, the present inventors have developed novel peptides and discovered that they have the effects of anti-inflammation, anti-fibrosis, wound healing, skin improvement and anti-cancer through reduction of TNF-α and inhibition of TGF-β.

In one aspect, the object of the present invention is to provide novel peptides which are effective for anti-inflammation, anti-fibrosis, wound healing and anti-cancer, and compositions for preventing and treating diseases comprising the same.

In one aspect, the present invention provides a peptide comprising the amino acid sequence of SEQ ID NO: 1, or a peptide that is a fragment of the peptide sequence, or a pharmaceutically acceptable salt thereof.

In one aspect, the invention provides a anti-inflammatory composition comprising the peptide, or a pharmaceutically acceptable salt thereof.

In one aspect, the anti-inflammatory composition according to the present invention may be a anti-inflammatory composition having anti-inflammatory activity by inhibiting TNF-α.

In one aspect, the anti-inflammatory composition according to the present invention is useful for the treatment of inflammatory bowel disease such as rheumatoid arthritis, psoriasis, psoriatic arthritis, atopic dermatitis, ulcerative colitis and Crohn's disease, ankylosing spondylitis, multiple sclerosis, systemic lupus erythematosus (SLE) Related disease selected from the group consisting of chronic obstructive pulmonary disease (COPD), sepsis, endotoxic shock, hepatitis, and type 1 diabetes.

In one aspect, the present invention also provides a composition for preventing, treating or ameliorating a body organ fibrosis comprising the peptide, or a pharmaceutically acceptable salt thereof.

In one aspect, the composition for preventing, treating or ameliorating the body organ fibrosis according to the present invention may be a composition characterized in that it has a body organ fibrosis inhibitory activity by inhibiting TJF-beta signaling.

In one aspect, the composition for preventing, treating or ameliorating the body organ fibrosis according to the present invention is a composition for preventing and treating fibrosis induced by at least one selected from the group consisting of cancer, administration of an anti-cancer agent, and radiation exposure .

In one aspect, the composition for the prevention, treatment or amelioration of the body organ fibrosis according to the present invention is used for the treatment of fibrosis of cancer cell tissue selected from the group consisting of pancreatic cancer, colon cancer, stomach cancer, prostate cancer, non-small cell lung cancer, breast cancer, melanoma and ovarian cancer Or a pharmaceutically acceptable salt thereof.

In one aspect, the invention also provides compositions for treating or improving wounds comprising the peptide, or a pharmaceutically acceptable salt thereof.

In one aspect, the composition for treating or improving wounds according to the present invention may be a composition having wound healing efficacy by inducing collagen synthesis.

In one aspect, the composition for treating or improving wounds according to the present invention is useful for preventing skin diseases or worsening selected from the group consisting of skin wrinkles, skin dryness, scarring, skin exfoliation, epidermal burns, epidermal lacerations, Or treating a disorder or condition.

In one embodiment of the present invention, the composition may be a composition for improving skin condition comprising the at least one peptide, or a salt thereof. In one embodiment, the skin condition may be at least one of skin wrinkles, skin dryness, elasticity loss, and skin exfoliation due to aging of the skin. In one embodiment, the composition may be a cosmetic composition.

In one embodiment of the invention, the composition may be an anticancer composition comprising the at least one peptide, or a salt thereof.

In one aspect, the invention also relates to a composition comprising the peptide, or a pharmaceutically acceptable salt thereof; And a kit for use for an efficacy of at least one of anti-inflammation, anti-fibrosis, anti-cancer, wound healing, and skin condition improvement, comprising instructions for initiating at least one of the dose, administration route, administration frequency and indications of the composition .

In one aspect, the present invention is also directed to a method of treating a subject in need of such an effect, wherein the composition comprises the peptide, or a pharmaceutically acceptable salt thereof, in one or more of the following: anti-inflammatory, anti-fibrotic, anti-cancer, wound healing, Inflammatory, fibrotic, cancerous, or wound comprising, a method of preventing or treating, or a method of improving skin condition.

In one aspect, the invention provides a novel use of said peptide, or a pharmaceutically acceptable salt thereof. In one embodiment, the use may be improvement, prevention and treatment of inflammation, fibrosis, cancer or wound. In another embodiment, the use may be for skin condition improvement. In one embodiment, the skin condition may be at least one of skin wrinkles, skin dryness, elasticity loss, and skin exfoliation due to aging of the skin. For example, as a cosmetic composition.

In one aspect, the present invention may be a peptide or a salt thereof for improving, preventing or treating inflammation, fibrosis, cancer or wound.

In one aspect, the peptides comprising the sequence of SEQ ID NO: 1 according to the present invention, or peptides thereof, have anti-inflammatory, anti-fibrotic, wound healing and anti-cancer efficacy and are useful for preventing or treating inflammation, fibrosis, Is expected to provide.

FIG. 1 shows the results obtained by treating the LPS-treated THP-1 cell line with the novel peptide SEQ ID NO: 1 (ALTSKLRG) and the positive control peptide SEQ ID NO: 2 (ALTSKLRA) with each concentration (1, 5, MRNA expression level of the cells was measured by RT-qPCR, and then the inhibition ratio was plotted.

FIG. 2 shows the results of immunohistochemical staining of a THP-1 cell line induced by LPS in which the novel peptide SEQ ID NO: 1 (ALTSKLRG) and the positive control peptide SEQ ID NO: 2 (ALTSKLRA) , A control group without any treatment, and a positive control group treated with estradiol (E2), and then measuring the amount of TNF-α by ELISA.

FIG. 3 is a graph showing the results of immunohistochemical staining of HepG2 cell line with a control group treated with nothing, a fibrosis control group treated with TGF-? Alone, a positive control treated with TGF-? And SB43152, a novel peptide SEQ ID NO: 1 (ALTSKLRG) and a positive control peptide SEQ ID NO: ALTSKLRA) was treated with each concentration (1 and 10 μM), and the expression of the fibroblast markers phosphor-Smad 2/3, Smad 2/3 and the reference gene GAPDH was analyzed by Western blotting and image analyzer (Top) and the graph (bottom) showing the measurement.

Fig. 4 shows the results of evaluation of the effect of the new peptide on the wound-induced animal model induced by wounding on SD rats, immediately after wounding and at intervals of 2 days, at a concentration of 100 占 퐂 / ml every 50 占 퐇, , And the area of the wound on each 11 was measured together with a control group to which no treatment was applied.

FIG. 5 shows the results of evaluation of the effect of the new peptide on the 3rd and 5th days in the experimental group treated with 50 μl each of the new peptide at a concentration of 100 μg / ml immediately after the wound and at the 2-day interval in the wound- The biopsies were performed two times and the tissues were stained with masson trichrome to measure the degree of collagen production with the average fluorescence intensity.

The present invention can be variously modified and can have various embodiments, and the present invention will be described in more detail as follows. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

In one aspect of the invention, a novel peptide is disclosed that comprises or is a fragment of SEQ ID NO: 1 (ALTSKLRG). In one embodiment, a novel peptide consisting of the sequence of SEQ ID NO: 1 (ALTSKLRG) is disclosed. The molecular weight of the sequence of SEQ ID NO: 1 is 844.51.

The peptide disclosed herein comprises peptides which comprise or are a fragment of SEQ ID NO: 1 and at least one amino acid, at least two amino acids, at least three amino acids, at least four amino acids, at least five amino acids, at least six amino acids, More than two amino acids may be included.

In one aspect of the invention, the amino acid change is of a property that causes the physicochemical properties of the peptide to change. For example, amino acid changes such as improving the thermal stability of the peptide, altering the substrate specificity, changing the optimum pH, etc. can be performed.

As used herein, the term " amino acid " includes D-isomers and modified amino acids as well as the 22 standard amino acids that are naturally incorporated into the peptide. Accordingly, in one aspect of the present invention, the peptide may be a peptide comprising a D-amino acid. In another aspect of the present invention, the peptide may include post-translationally modified non-standard amino acids and the like. Examples of post-translational modifications include phosphorylation, glycosylation, acylation (including, for example, acetylation, myristoylation and palmitoylation), alkylation ), Carboxylation, hydroxylation, glycation, biotinylation, ubiquitinylation, changes in chemical properties (such as, for example, beta-depleted deamidation , Deamidation) and structural changes (e.g., formation of a disulfide bridge). Also included are amino acid changes such as changes in amino acids, such as changes in amino groups, carboxy groups or side chains, caused by chemical reactions that take place during binding with crosslinkers to form peptide conjugates.

The peptides disclosed herein may be wild type peptides identified and isolated from natural sources. Alternatively, the peptides disclosed herein may be artificial variants, including amino acid sequences in which one or more amino acids are substituted, deleted and / or inserted as compared to peptides that are fragments of SEQ ID NO: 1. Amino acid changes in wild-type polypeptides as well as in artificial variants include conservative amino acid substitutions that do not significantly affect folding and / or activity of the protein. Examples of conservative substitutions include, but are not limited to, basic amino acids (arginine, lysine and histidine), acidic amino acids (glutamic acid and aspartic acid), polar amino acids (glutamine and asparagine), hydrophobic amino acids (leucine, isoleucine, valine and methionine) Tryptophan and tyrosine), and small amino acids (glycine, alanine, serine and threonine). In general, amino acid substitutions that do not alter specific activity are known in the art. The most commonly occurring interactions are Ala / Ser, Val / Ile, Asp / Glu, Thr / Ser, Ala / Gly, Ala / Thr, Ser / Asn, Ala / Val, Ser / Gly, Tyr / Lys / Arg, Asp / Asn, Leu / Ile, Leu / Val, Ala / Glu, and Asp / Gly, and vice versa. Other examples of conservative substitutions are shown in the following table.

Original amino acid	Illustrative Residue  substitution	Preferred residue substitution
Ala (A)	val; leu; with	Val
Arg (R)	lys; gln; asn	Lys
Asn (N)	gln; feeling; asp, lys; arg	Gln
Asp (D)	glu; asn	Glu
Cys (C)	ser; ala	Ser
Gln (Q)	asn; glu	Asn
Glu (E)	asp; gln	Asp
Gly (G)	Ala	Ala
His (H)	asn; gln; lys; arg	Arg
Ile (I)	leu; val; met; ala; phe; norleucine	Leu
Leu (L)	norleucine; with; val; met; ala; phe	Ile
Lys (K)	arg; gln; asn	Arg
Met (M)	leu; phe; with	Leu
Phe (F)	leu; val; with; ala; tyr	Tyr
Pro (P)	Ala	Ala
Ser (S)	thr	Thr
Thr (T)	Ser	Ser
Trp (W)	tyr; phe	Tyr
Tyr (Y)	trp; phe; thr; ser	Phe
Val (V)	with; leu; met; phe; ala; norleucine	Leu

Substantial variations in the biological properties of the peptide include (a) the structure of the polypeptide backbone within the substitution region, e.g., their effect in maintaining the sheet or helical conformation, (b) the charge of the molecule at the target site Or their effect in maintaining hydrophobicity, or (c) their effect in maintaining the bulk of the side chain is significantly different. The natural residues are grouped into the following groups based on their usual side chain properties:

 (1) hydrophobicity: norleucine, met, ala, val, leu, ile;

 (2) Neutral hydrophilic: cys, ser, thr;

 (3) Acid: asp, glu;

 (4) Basicity: asn, gln, his, lys, arg;

 (5) Residues affecting chain orientation: gly, pro; And

 (6) Aromatic: trp, tyr, phe.

Non-conservative substitutions will be made by exchanging one member of these members for another. Any cysteine residue not associated with maintaining the proper stereostructure of the peptide can generally be replaced with a serine to enhance the oxidative stability of the molecule and prevent strange cross-linking. Conversely, cysteine bond (s) can be added to the peptide to improve its stability

Other types of amino acid variants of peptides are those in which the glycosylation pattern of the antibody is altered. The term change refers to the deletion of one or more carbohydrate moieties found in the peptide and / or the addition of one or more glycosylation sites that are not present in the peptide.

Glycosylation of peptides is typically N-linked or O-linked. N-linked refers to a carbohydrate moiety attached to the side chain of an asparagine moiety. The tripeptide sequences asparagine-X-serine and asparagine-X-threonine (where X is any amino acid except proline) are recognition sequences for enzymatically attaching carbohydrate moieties to asparagine side chains. Thus, the presence of one of these tripeptide sequences in the polypeptide creates a potential glycosylation site. O-linked glycosylation refers to attaching one of the sugars N-acetylgalactosamine, galactose or xylose to a hydroxyamino acid, most commonly serine or threonine, but 5-hydroxyproline or 5-hydroxylysine May be used.

Addition of the glycosylation site to the peptide is conveniently accomplished by varying the amino acid sequence to contain one or more of the above-mentioned tripeptide sequences (in the case of N-linked glycosylation sites). Such changes may be made by adding one or more serine or threonine residues to the sequence of the original antibody or by substituting these residues (for O-linked glycosylation sites).

The peptide of SEQ ID NO: 1 according to one aspect of the present invention has an advantage of low intracellular toxicity and high in vivo stability. In one aspect of the present invention, there is provided a pharmaceutical composition comprising at least one peptide comprising the amino acid sequence of SEQ ID NO: 1 or a peptide thereof as an active ingredient.

In one aspect, the pharmaceutical composition for prevention and treatment of inflammation, fibrosis, wound, and cancer-related diseases according to one aspect of the present invention comprises 0.01 mg / mL to 0.1 mg / mL, 1 mg of the peptide comprising SEQ ID NO: / mL, 10 mg / mL, and 100 mg / mL. However, when the difference in the effect depending on the dose is shown, it can be appropriately controlled. When it is contained in the above-mentioned range or below, it is not only suitable for exhibiting the intended effect of the present invention but also can satisfy both the stability and safety of the composition and may be suitably included in the above range in terms of cost effectiveness .

The composition according to one aspect of the present invention can be applied to all animals including humans, dogs, chickens, pigs, cattle, sheep, guinea pigs or monkeys.

The pharmaceutical composition according to one aspect of the present invention can be administered orally, rectally, transdermally, intravenously, intramuscularly, intraperitoneally, intramuscularly, intradermally or subcutaneously.

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, lozenges, ointments, gels, creams, suspensions, emulsions, suppositories, patches or spraying agents.

The pharmaceutical composition according to one aspect of the present invention may contain additives such as a diluent, an excipient, a lubricant, a binder, a disintegrant, a buffer, a dispersant, a surfactant, a colorant, a fragrance or a sweetener as necessary. The pharmaceutical composition according to one aspect of the present invention can be prepared by a conventional method in the art.

The effective ingredients of the pharmaceutical composition according to one aspect of the present invention will vary depending on the age, sex, weight, pathological condition and severity of the subject to be administered, route of administration, or judgment of the prescriber. Determination of the amount of application based on these factors is within the level of ordinary skill in the art and its daily dose is, for example, from 0.1 to 100 g / kg / day, for example from 10 to 10 g / kg Kg / day, more specifically from 100 μg / kg / day to 1 g / kg / day, more specifically from 500 μg / kg / day to 100 mg / kg / day, It can be adjusted appropriately. The pharmaceutical composition according to one aspect of the present invention may be administered once to three times a day, but is not limited thereto.

The formulation of the composition according to one aspect of the present invention is not particularly limited, but may be formulated into, for example, tablets, granules, powders, liquids, solid preparations and the like. Each formulation may be blended without difficulty by a person skilled in the art according to the purpose of formulation or use, in addition to the active ingredient, and the synergistic effect may occur when the composition is applied simultaneously with other ingredients.

A composition comprising a peptide according to one aspect of the present invention is useful for the treatment of inflammatory bowel disease such as rheumatoid arthritis, psoriasis, psoriatic arthritis, atopic dermatitis, ulcerative colitis and Crohn's disease, ankylosing spondylitis, multiple sclerosis, systemic lupus erythematosus (SLE) Related diseases selected from the group consisting of chronic obstructive pulmonary disease (COPD), sepsis, endotoxic shock, hepatitis and type 1 diabetes mellitus.

The composition comprising a peptide according to one aspect of the present invention can be used as a pharmaceutical composition for preventing and treating fibrosis induced by selecting one or more members selected from the group consisting of cancer, administration of an anti-cancer agent, and exposure to radiation.

A pharmaceutical composition for the prevention and treatment of fibrosis comprising peptides according to one aspect of the present invention is a composition for preventing and treating fibrosis of a cancer cell tissue selected from the group consisting of pancreatic cancer, colon cancer, stomach cancer, prostate cancer, non-small cell lung cancer, breast cancer, melanoma and ovarian cancer It can exhibit an effect of suppressing fibrosis.

A composition comprising a peptide according to one aspect of the present invention is useful for preventing or treating skin diseases or worsening selected from the group consisting of skin wrinkles, skin wrinkles, skin exudates, epidermal burns, epidermal lacerations, epidermal wounds and combinations thereof And can be used as a pharmaceutical composition.

An aspect of the present invention provides a cosmetic composition comprising the peptide or a salt thereof. The cosmetic composition contains a cosmetically or dermatologically acceptable medium or base. It may be any formulation suitable for topical application, for example, a solution, a gel, a solid, an anhydrous product of a paste, an emulsion obtained by dispersing an oil phase in an aqueous phase, an emulsion obtained by dispersing a water phase in an oil phase, a multi-emulsion, May be used in the form of an aerosol or patch further comprising a capsule, a microgranule, an ionic (liposome) and a non-ionic follicle dispersant, a foam, a compressed propellant. These compositions may be prepared according to conventional methods in the art.

The above-mentioned cosmetic composition may contain other ingredients that can give a synergistic effect to the main effect within a range not impairing the main effect, and other ingredients other than the active ingredient of the present invention may be added to other cosmetic Depending on the formulation of the composition or the purpose of use, a person skilled in the art can mix and choose without difficulty. For example, the cosmetic composition of the present invention may contain, in addition to the above-mentioned active ingredients, other components which are usually formulated in cosmetic compositions as required, and examples thereof include a moisturizing agent, an emollient agent, a surfactant, Antioxidants, stabilizers, thickeners, glycerin, pH adjusters, alcohols, pigments, flavorings, blood circulation accelerators, coolants, antiperspirants and purified water. The other ingredients to be contained in the cosmetic composition are not limited thereto, and the amount of the ingredients may be within the range that does not impair the objects and effects of the present invention.

The formulation of the cosmetic composition is not particularly limited and may be appropriately selected according to the purpose. For example, a soap preparation, a flexible lotion, a nutritional lotion, an essence, a nutritional cream, a massage cream, a pack, a gel, a makeup base, a foundation, a powder, a lipstick, a patch, Hair cleansing water, cleanser, hair shampoo, hair conditioning, hair treatment, hair essence, hair lotion, scalp hair tonic, scalp essence, hair gel, hair spray, hair pack, body lotion, body cream, body oil and body essence , ≪ / RTI > but are not limited thereto.

The formulation of the food composition according to the present specification is not particularly limited, but may be formulated into, for example, tablets, granules, powders, liquid preparations such as a drink, caramels, gels, bars and the like. The food composition of each formulation can be blended with the ingredients commonly used in the field in addition to the active ingredient without difficulty by those skilled in the art depending on the purpose of formulation or use, and synergistic effect can be obtained when the composition is applied simultaneously with other ingredients.

In the food composition according to the present specification, the dosage determination of the active ingredient is within the level of those skilled in the art, and its daily dosage is, for example, from 0.1 mg / kg / day to 5000 mg / kg / day, mg / kg / day to 500 mg / kg / day, but it is not limited thereto, and may vary depending on various factors such as the age, health condition, and complication of the subject.

The food composition according to the present invention may be used as a food or beverage such as various foods such as chewing gum, caramel product, candy, ice cream, confectionery, beverage such as soft drink, mineral water, alcoholic beverage, healthful food including vitamins and minerals .

In addition to the above, the food composition which is one aspect of the present invention can be used as a flavoring agent such as various nutrients, vitamins, minerals (electrolytes), synthetic flavors and natural flavors, coloring agents and enhancers (cheese, chocolate etc.), pectic acid and its salts, Alginic acid and its salts, organic acids, protective colloid thickeners, pH adjusting agents, stabilizers, preservatives, glycerin, alcohols, carbonating agents used in carbonated beverages and the like. In addition, the functional food compositions of the present invention may comprise natural fruit juice and pulp for the production of fruit juice drinks and vegetable drinks. These components may be used independently or in combination. The proportion of such additives is not so critical, but is generally included in the range of 0 to about 20 parts by weight per 100 parts by weight of the composition of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The abbreviated term in front of a noun is not intended to limit the quantity but to indicate that there is more than one noun item mentioned. The terms " comprising ", " having ", and " containing " are to be construed as open (i.e., meaning including but not limited to).

To refer to a range of values is an easy way to substitute for referring individually to each distinct value falling within that range and each separate value that is not explicitly stated is referred to individually in the specification Are incorporated herein by reference. All range end values are contained within that range and can be combined independently.

All methods mentioned herein may be performed in any suitable order unless otherwise indicated or clearly contradicted by context. It is to be understood that the use of any embodiment and all of the embodiments or example language (e.g., " such as ") is for the purpose of describing the present invention only, It is not intended to be limiting. No language in the specification should be construed as obliging any non-claimed components to practice the present invention. Unless defined otherwise, the 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.

Preferred embodiments of the present invention include the most optimal mode known to the inventors for carrying out the present 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 appropriately utilize such variations, and the inventors expect the invention to be practiced otherwise than as described herein. Accordingly, the present invention includes equivalents and all modifications of the subject matter of the invention as recited in the appended claims, as permitted by the patent law. Moreover, any combination of the above-mentioned components within all possible variations is included in the present invention unless otherwise specified or contradicted by context. While the present invention has been particularly shown and described with reference to exemplary embodiments, those skilled in the art will readily appreciate 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.

Hereinafter, the constitution and effects of the present invention will be described in more detail with reference to Examples and Experimental Examples. However, the following examples and experimental examples are provided for illustrative purposes only in order to facilitate understanding of the present invention, and the scope and scope of the present invention are not limited thereto.

Example  1: Synthesis of novel peptide

The novel peptide of SEQ ID NO: 1 was prepared according to a conventional solid phase peptide synthesis method. Specifically, the peptides were synthesized by coupling one amino acid from the C-terminal through Fmoc solid phase peptide synthesis (SPPS) using ASP48S (Peptron, Inc., Daejeon, Korea). The first amino acid at the C-terminus of the peptides attached to the resin was used as follows. For example:

NH ₂ -Lys (Boc) -2-chloro-Trityl Resin

NH ₂ -Ala-2-chloro-Trityl Resin

NH ₂ -Arg (Pbf) -2-chloro-Trityl Resin

Boc, t-Bu (t-butylester), Pbf (2, 2, 4, 6, 6), which are all amino acid sources used for peptide synthesis, are protected by N-term and Fmoc, 7-pentamethyl dihydro-benzofuran-5-sulfonyl). For example:

Fmoc-Pro-OH, Fmoc-Leu-OH, Fmoc-Phe-OH, Fmoc-Phe-OH, Fmoc-Arg- Fmoc-Lys (Boc) -OH, Fmoc-Gln (Trt) -OH, Fmoc-Trp (Boc) -OH, Fmoc-Met-OH, Fmoc- -Asn (Trt) -OH, Fmoc-Tyr (tBu) -OH, Fmoc-Ahx-OH, Fmoc-Gln-OH, Trt-Mercaptoacetic acid.

As the coupling reagent, HBTU [2- (1H-Benzotriazole-1-yl) -1,1,3,3-tetramethylaminium hexafluorophosphate] / HOBt [N-Hydroxxybenzotriazole] / NMM [4-Methylmorpholine] Respectively. Fmoc removal was performed using piperidine in DMF in 20% DMF. Cleavage Cocktail [TFA (trifluoroacetic acid) / TIS (triisopropylsilane) / EDT (ethanedithiol) / H ₂ O = 92.5 / 2.5 / 2.5 / 2.5] was used to remove the synthesized peptide from Resin and to remove the protecting group of the residue. Respectively.

Each of the peptides was synthesized by repeating the steps of reacting corresponding amino acids with a starting amino acid having an amino acid protecting group bonded thereto on a solid support, washing with a solvent, followed by deprotection. The synthesized peptide was cleaved from the resin and purified by HPLC. The success of the synthesis was confirmed by LC / MS and lyophilized.

As a result of high performance liquid chromatography on the peptides used in this example, the purity of all the peptides was 95% or more.

ALTSKLRA (SEQ ID NO: 2) was prepared as a positive control peptide in the same manner as described above.

Example  2: Anti-inflammatory activity of novel peptide

In order to verify the anti-inflammatory activity of the novel peptide, the degree of expression of TNF-α, which is known as cytokine exhibiting inflammatory activity in the inflammatory cell line induced by LPS (Lipopolysaccharide), was measured by RT-qPCR and ELISA 1 (ALTSKLRG), and the positive control peptide, SEQ ID NO: 2 (ALTSKLRA).

Preparation of experimental reagents and materials

Experiments were performed using human acute monocytic leukemia cell line THP-1 cells (American Type Culture Collection (ATCC), Manassas, VA, USA). The THP-1 was a 96-well plate so that the 1 X 10 ⁵ cells per well suspended in RPMI 1640 medium and incubated for 24 hours. At this time, PMA (phorbol 12-myristate 13-acetate, Sigma) was treated to differentiate into macrophages.

Lipopolysaccharide (LPS, Sigma) was dissolved in PBS (phosphate buffered saline) and PMA was dissolved in DMSO (dimethyl sulfoxide).

The peptides were synthesized in Peptron (Daejeon, Republic of Korea) according to the synthetic method in Example 1 and used.

Experimental Method

The RT-qPCR test method was as follows. THP-1 cells were plated in 6-well plates at 2 × 10 ⁶ / well and treated with 100 ng / ml PMA for 24 hours to differentiate into Macrophages. After removing the media, the differentiated THP-1 cells were washed twice with SFM (serum-free media), and then incubated with 10 ng / ml LPS and 1, 5 and 10 μM concentration of the novel peptide SEQ ID NO: 1 (ALTSKLRG) SEQ ID NO: 2 (ALTSKLRA), which is a control peptide, was treated and cultured for 6 hours. RNA was extracted using RNeasy® Plus Mini Kit (Qiagen), and extracted RNA was quantitated and cDNA synthesis was performed using Reverse Transcription system (Promega). RT-qPCR was performed using CFX96-Real-Time System (Bio-rad) to analyze mRNA expression of TNF-α and GAPDH was used as a reference gene. The PCR conditions were 40 cycles (95 to 15 seconds, 55 to 30 seconds, 72 to 30 seconds) and the sequences of the primers used were as shown in Table 3 below

Gene	Forward Sequence (5'-3 ')	Reverse sequence (5'-3 ')
TNF-a	CTATCTGGGAGGGGTCTTCC (SEQ ID NO: 3)	ATGTTCGTCCTGCTCACAG (SEQ ID NO: 4)
GAPDH	AGGGCTGCTTTTAACTCTGGT (SEQ ID NO: 5)	CCCCACTTGATTTTGGAGGGA (SEQ ID NO: 6)

The ELISA test method was as follows. THP-1, a monocyte cell line distributed from ATCC, is subcultured and prepared in the P3 stage. The cell line is divided into well-plates and treated with PMA to differentiate into macrophages. The differentiated cells were treated with LPS to induce an inflammatory response (induced TNF-alpha production), and the cells were seeded with the novel peptide SEQ ID NO: 1 (ALTSKLRG) and positive control peptide SEQ ID NO: 2 (ALTSKLRA) 0.05, 0.5, 5 [mu] M) to measure the amount of TNF- [alpha] by ELISA. The relative values for the noninflammatory group and the complete inflammation group were calculated, and as the estrogen (E2) positive control group, the untreated cell line not treated with the novel peptide was set as a general control group and compared. E2 is known to be a steroid that inhibits the production of TNF-α in THP-1.

Statistical processing

All data were expressed as mean ± standard error (mean ± SEM) and statistical analysis was performed by ANOVA test. SigmaStat statistical program was used and statistical analysis was performed using Kruskal-Wallis test and Mann-Whitney U-test. Comparisons between the groups were made by the Tukey test. The p value was considered to be statistically significant when the value was less than 0.05.

Experimental Results and Analysis

The results measured through the above experimental method are as follows.

The expression levels of TNF-α mRNA were measured by RT-qPCR, and compared with the LPS-induced inflammatory response of LPS in THP-1 cells, the expression of each peptide As a result of comparing the inhibition ratios of TNF-α that exhibits anti-inflammatory activity, the novel peptide, SEQ ID NO: 1 (ALTSKLRG) showed excellent inhibitory effect on TNF-α gene expression at all concentrations. Among these, 1 uM and 5 uM showed positive control peptides (SEQ ID NO: 2) (ALTSKLRA). Especially, at the lowest concentration of 1 uM, the anti-inflammatory activity was much superior to that of the positive control peptide, SEQ ID NO: 2 (see FIG.

The anti-inflammatory activity of the novel peptides was confirmed by ELISA as inhibitory effect on TNF-α production of THP-1 cells. As a result, the peptide of SEQ ID NO: 1 showed TNF-α production inhibitory effect at all concentrations. In particular, it showed excellent effects compared to positive control group E2 and SEQ ID NO: 2 (ALTSKLRA) (see FIG. 2).

From the above two experimental results, it can be seen that the novel peptide according to the present invention exhibits an anti-inflammatory activity exhibiting inhibition of TNF- ?. Experiments on the inhibition of TNF-α are known to be the most basic experiments for proving the total inflammation inhibitory effect, and it is understood that the novel peptide of the present invention has an overall anti-inflammatory effect.

Example  3: of the novel peptide Anti-fibrosis  activation

In order to confirm TGF-beta inhibitory effect, which is considered to be the main cause of fibrosis, an experiment for confirming TGF-beta signaling inhibitory action in HepG2 cell line was carried out as follows.

Preparation of experimental reagents and materials

The reagents and materials used for this experiment are as follows. The new peptides in the powder state were dissolved in filtered 0.2 μm filtered sterile water into a 0.2 μm filter, aliquoted at -70 ° C., and used for dissolution. The cell line used was HepG2 (ATCC HB-8065; American Type Culture Collection), and recombinant human TGF-β was dissolved in 4 mM HCl to prepare 10 μg / mL stock. As a test group, the novel peptide SEQ ID NO: 1 (ALTSKLRG) and the positive control peptide SEQ ID NO: 2 (ALTSKLRA) were prepared according to Example 1 above. In addition, SB431542 (Sigma) used as a positive control was prepared to be 10 mM stock.

Cell line preparation

2 × 10 ⁶ HepG2 cells (ATCC HB-8065;) are seeded in a 60 mm petri dish and cultured in a CO ₂ incubator for 16 hours. The medium is then replaced with SFM (serum-free medium) and cultured for an additional 24 hours. The medium is then exchanged with TGF- beta 1 at a concentration of 10 ng / ml and the peptides are further treated with concentration (1, 10 [mu] M) for 72 hours. Each peptide-treated group is further incubated in a CO ₂ incubator at 37 ° C for 1 hour.

Experimental Method

In order to measure the anti-fibrotic activity of the novel peptide, Western blotting was used to measure the degree of suppression of TGF-β signaling. Specific experimental methods are as follows.

The peptide-treated cells were washed twice with PBS, collected in a 1.5 mL EP tube with a cell scraper, and the supernatant was removed with a centrifuge (1,000 rpm, 4 ° C, 2 minutes) Add 100 μL each. Incubate for 40 min on ice, shake for 10 min (vortex, micro-centrifuge pre-cooled to 4 ° C) and mix samples 40-50 times using 1 ml syringe. Finally, the supernatant is centrifuged at 13,000 rpm for 15 minutes.

30 ug of protein was transferred to PVDF membrane (polyvinylidene difluoride membranes, Millipore) by 8% SDS-PAGE (sodium dodecyl sulfate-polyacrylamide gel electrophoresis). The PVDF membrane is blocked with 5% skim milk and incubated with primary antibodies. The antibodies used in this experiment are as follows. Smad 2/3 (60, 52 kDa, 5% BSA 1: 1000, # 3102, Cell signaling), pSmad2 / 3 (cell signaling # 3102), GAPDH (37 kDa, signaling). The PVDF membrane is then washed with TBST (Tris-buffered saline containing 0.1% Tween-20) and reacted with HRP-conjugated anti-rabbit antibody (Jackson Immuno Research Laboratories, INC.). Thereafter, ECL detection (detection, Amersham Pharmacia Biotech) was performed and the obtained image was analyzed with an image analyzer (GE Healthcare, ImageQuant LAS 4000).

To determine TGF-β inhibition, pSmad2 / 3 Smad2 / 3 was used as TGF-β signaling activity markers and GAPDH was used as a reference group for electrophoresis. The TGF-beta signal transduction activity markers were those expressed at higher concentrations as TGF-beta was inhibited.

Statistical processing

All data were expressed as mean ± standard error (mean ± SEM) and statistical analysis was performed by ANOVA test. SigmaStat statistical program was used and statistical analysis was performed using Kruskal-Wallis test and Mann-Whitney U-test. Comparisons between the groups were made by the Tukey test. The p value was considered to be statistically significant when the value was less than 0.05.

Experimental Results and Analysis

The results measured through the above experimental method are as follows.

As a result of measuring the degree of inhibition of TGF-beta of the novel peptide through Western blotting, the expression of markers which are higher as the TGF-beta is inhibited is higher than that of untreatment treated with fibrosis-induced TGF-beta alone (See FIG. 3). This is a result indicating that TGF-beta was inhibited by the treatment of the novel peptide. Also, the expression level of pSmad2 / 3 was significantly higher when compared with the positive control group SB431542 and the positive control group peptide SEQ ID NO: 2 (ALTSKLRA). This shows that the peptide of SEQ ID NO: 1 exhibits a higher TGF-beta inhibitory activity.

From the above experimental results, it can be seen that the novel peptide according to the present invention exhibits an anti-fibrosis activity exhibited by inhibition of TGF-β. Experiments on the inhibition of TGF- [beta] are known to be widely used in experiments for anti-fibrosis activity. Thus, it can be seen that the novel peptides of the present invention have an anti-fibrosis activity effect.

Example  4: Wound healing activity of novel peptide

In order to confirm the wound healing efficacy of the novel peptide, experiments were carried out as follows, in which new peptides were treated with a wound-induced animal model and collagen production efficiency required for wound healing and wound healing was examined.

Experimental animal  Ready

SD rats (Sprague-Dawley Rats) were chosen because they are difficult to make skin thin and uniformly in mice. The male was selected to exclude the effect of hormone change. The male was 6 weeks old and was acclimated for about 1 week. However, to elaborate the experimental results, the experiment was performed until 11 weeks old. The animals were sensitized to the olfactory senses and could injure other animals. Therefore, each animal was separated from the wounds after they were wounded.

Experimental Method

The following procedure was followed to form full-thickness excision in the prepared experimental animals. To induce anesthesia, xylazine hydrochloride (10 mg / kg body weight) and ketamine hydrochloride (100 mg / kg / kg) were injected intraperitoneally or inhalation anesthesia. After induction of anesthesia, the rabbits on the back of the animals were shaved thoroughly in a prone position and disinfected with betadine. One 16-mm punch was used at the highest point of the back I made a round full-length wound. No separate dressing was performed on the wound area.

The animals were divided into the following groups and the drug was applied immediately after wounding and at intervals of two days. For the application method, the substance was used at a concentration of 1 mg / ml and diluted 10 times with 100 μg / ml immediately before the experiment. The application was carried out at a dose of 50 μl per wound.

1) Control group: 50 μl of physiological saline solution per wound

2) Experimental group 1: 0.1 mg / ml peptide of SEQ ID NO: 1 was spotted

Immediately after wound formation and on the 2nd, 4th, 7th, 9th, 11th, and 14th day after wounding were observed and photographed. If the wound was completely overheated, date was written. Normally, about 9 days later, individuals shrinking to 5% of the original wound began to appear. The images of the injured area were taken with the patient and analyzed with Image J program (NIH, USA) to calculate the wound area.

Biopsies for collagen formation were performed on both the third and fifth day after wounding, by collecting both wounded parts of the back of each of two control specimens and two experimental specimens. To compare collagen synthesis, average fluorescence intensity was measured after masson trichrome staining.

Experimental Results and Analysis

When the experimental group was compared with the control group, the wound size was smaller than that of the control group on the first day after induction of the full thickness wound (see FIG. 4). In both control and experimental groups, the difference in size of the wounds was observed at the 11th day of the healing period. However, the fact that wounds were reduced in the experimental group compared to the control group at the initial stage after wounding was considered as evidence that the new peptide was effective at the early stage of wounding .

As a result of observation of collagen formation after wound induction, the average fluorescence intensity of collagen production in the control group and the experimental group was higher than that in the control group (see FIG. 5). This may indicate that the new peptide promotes collagen formation, which is essential when wound healing is performed.

From the above experimental results, it can be seen that the novel peptide according to the present invention has an activity of reducing the wound area and increasing collagen synthesis. Thus, it can be seen that the novel peptide of the present invention can have a wound healing activity effect.

The results of the above Experimental Examples indicate that the novel peptides according to the present invention have the effects of anti-inflammation, anti-fibrosis and wound healing, and develop therapeutic agents for the prevention and treatment of inflammation, fibrosis and wounds In addition, it is possible to develop a preventive and therapeutic agent for cancer and various diseases accompanied by inflammation and fibrosis, and a symptom improvement agent.

Claims (16)

1. A peptide comprising the amino acid sequence represented by SEQ ID NO: 1 or a peptide fragment thereof, or a pharmaceutically acceptable salt thereof.
2. 7. A pharmaceutical composition comprising one or more peptides according to claim 1 or a pharmaceutically acceptable salt thereof.
3. The anti-inflammatory composition according to claim 2, wherein the composition having anti-inflammatory activity has anti-inflammatory activity by decreasing TNF-a.
4. The composition of claim 2, wherein the anti-inflammatory composition is selected from the group consisting of inflammatory bowel disease such as rheumatoid arthritis, psoriasis, psoriatic arthritis, atopic dermatitis, ulcerative colitis and Crohn's disease, ankylosing spondylitis, multiple sclerosis, systemic lupus erythematosus Wherein the inflammatory disease is selected from the group consisting of chronic obstructive pulmonary disease (COPD), sepsis, endotoxic shock, hepatitis, and type 1 diabetes.
5. A composition for the prevention, treatment or amelioration of physical or organ fibrosis comprising at least one peptide according to claim 1, or a pharmaceutically acceptable salt thereof.
6. The composition according to claim 5, wherein the composition for preventing, treating or ameliorating the body organ fibrosis has a body organ fibrosis inhibitory activity by inhibiting TGF-β signaling.
7. [Claim 7] The composition for preventing, treating or ameliorating a body organ fibrosis according to claim 5, wherein the composition for preventing, treating or ameliorating the body organ fibrosis is one or more selected from the group consisting of cancer, Prevention, treatment, or amelioration.
8. 6. The composition according to claim 5, wherein the composition for the prevention, treatment or amelioration of fibrosis of the body includes fibrosis of cancer cell tissue selected from the group consisting of pancreatic cancer, colon cancer, stomach cancer, prostate cancer, non-small cell lung cancer, breast cancer, melanoma and ovarian cancer Wherein the composition for preventing, treating or ameliorating the body organ fibrosis according to claim 1,
9. 10. A composition for treating or improving wounds comprising at least one peptide according to claim 1, or a pharmaceutically acceptable salt thereof.
10. [Claim 11] The composition for treating or improving wounds according to claim 9, wherein the wound treatment or improvement composition has wound healing efficacy by inducing collagen synthesis.
11. [Claim 11] The composition for treating or improving wounds according to claim 9, wherein the composition for treating or improving wounds comprises a wound or a wound selected from the group consisting of epidermal image, epidermal lining, epidermal wound, and combinations thereof.
12. A composition for improving skin condition comprising at least one peptide according to claim 1, or a pharmaceutically acceptable salt thereof.
13. 13. The composition for improving skin condition according to claim 12, wherein the skin condition is at least one of skin wrinkles, skin dryness, scarring, elasticity deterioration and skin exfoliation due to skin aging.
14. An anticancer composition comprising at least one peptide according to claim 1, or a pharmaceutically acceptable salt thereof.
15. A composition comprising at least one peptide according to claim 1, or a pharmaceutically acceptable salt thereof, or a composition according to any one of claims 2 to 14; And a kit for use for an efficacy of at least one of anti-inflammation, anti-fibrosis, anti-cancer, wound healing, and skin condition improvement, comprising instructions for initiating at least one of the dose, administration route, administration frequency and indications of the composition.
16. Comprising administering a composition comprising at least one peptide according to claim 1 or a pharmaceutically acceptable salt thereof to a subject in need of an effect of at least one of anti-inflammatory, anti-fibrotic, anti-cancer, wound healing and skin condition improvement A method of preventing, ameliorating or treating inflammation, fibrosis or cancer, or treating or improving a wound, or improving a skin condition.

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