KR102063697B1 - Composition for promoting the hair growth comprising escin - Google Patents

Abstract

The present invention relates to a composition for preventing hair loss and promoting hair growth, containing a component which induces novel growth or growth promotion of hair. The composition for preventing hair loss and promoting hair growth of the present invention shortens a period of transition from telogen to anagen in a hair growth cycle using escin contained as an active component, thereby being able to promote hair growth and slow the conversion to catagen. Therefore, the composition for preventing hair loss prevention and promoting hair growth has an excellent effect of preventing hair loss and promoting hair growth.

Description

Composition for promoting the hair growth containing escin comprising escin

The present invention relates to a composition for promoting hair growth, and relates to a composition for preventing hair loss and promoting hair growth for promoting hair growth containing a component for inducing new growth or growth promotion of hair.

Hair is an important part of the growing interest in beauty as the times change. Hair is a thin, keratinized structure produced on the surface of the skin. This protects the body from external stimuli such as direct sunlight, cold, friction, and danger, and emits heavy metals such as arsenic, mercury, and zinc that are harmful to the body. The side is also highlighted. However, more people are complaining of hair loss due to various causes, including changes in diet and increased internal and external stress.

Human hair is about 100,000-150,000 pieces, and each hair has a different growth cycle. The hair growth cycle consists of three stages: the anagen stage in which hair is most actively growing, the catagen stage in which hair degeneration begins, and the telogen stage in which hair growth stops or enters rest. Classified as

In controlling the hair growth cycle, the activity of outer root sheath cells, including hair papilla cells and hair follicle stem cells constituting hair follicles, and various cytokines and growth factors produced by these cells Is known to play an important role. For example, DKK-1 (Dickkopf-1) plays an important role in inhibiting and killing hair follicle growth (J Invest. Dermatol, 2008: 128 (2)). Meanwhile, hair follicle regeneration and stem cell activation should be performed for periodic hair growth, which is known to be caused by production and activation of Wnt / β-catenin (Nature 2007: 447 (7142)).

Generally, the term alopecia refers to the increase in the number of hairs that fall abnormally due to shortening of the hair growth rate in the growth phase and more hair in the degenerative or resting phase. Normal people have a lot of hair growth phase, whereas alopecia (alopecia) people have a lot of hair at rest phase is a visible hair loss phenomenon. The hallmark of people with alopecia is the miniaturization of hair. As the hair loss progresses, the growth phase is shortened and the transition to the degenerative and resting phase is promoted, and then the hair follicle becomes smaller and the hair follicle becomes smaller and smaller. Therefore, for the treatment of hair loss, it is important to be able to return the hair follicles in the resting phase to the growth phase quickly and to increase the shortened growth period.

The causes of hair loss include excessive male hormone action, excessive sebum secretion, poor blood circulation, peroxide, bacteria, deterioration of scalp function, genetic factors, aging, stress, etc. It is unknown.

Male hormone plays a very important role in hair follicle growth and dropping. Among the factors regulated by male hormones in hair follicles, TGF-β plays an important role in inhibiting hair follicle growth by male hormones and inducing the degenerative phase in the hair follicle cycle. (Tsuji Y, Denda S, Soma T, Raftery L, Momoi T, Hibino T, A potential suppressor of TGF-beta delays catagen progression in hair follicles, J Investig Dermatol Symp Proc, 2003: 8 (1): 65-68) . In other words, it is expressed in the dermal papilla cells of the hair follicles by the male hormone, causing apoptosis of the stromal cells of the hair follicle and the ectodermal keratinocytes and causing the hair follicles of the growing phase to the degenerative stage. ) And apoptosis of the pericardial muscle cells, resulting in increased follicular hair follicles, which in turn lead to degenerative hair follicles, which easily fall out and produce thinner and shorter hair (Clinical diagnosis and management of androgenetic alopecia in male and female) , Korean Journal of Beauty Science, 2007: 13 (2): 799-810). Thus, TGF-β is known to inhibit hair follicle growth.

Escin (escin) is a saponin-based substance contained in a large amount of horse chestnut extract, which is mainly used as an anti-inflammatory, vasoconstrictor, or vascular protective agent. However, prior to the present invention, it is not known about the improvement of hair loss prevention and hair growth promoting effect of escin.

Formulations for the treatment or prevention of alopecia developed to date include women's hormone-based preparations for promoting blood circulation, strengthening the hair roots, scalp moisturizing, and inhibiting male hormones, or minoxidil, finastide, and trichosaka. And formulations containing trichosaccharides. Minoxidil (2,4-diamino-6-piperidinopyrimidine-3-oxide), a typical application for hair loss treatment, increases blood flow to the scalp, while oral hair loss treatment, finasteride, inhibits the activity of 5α-reductase, which leads to active male hormone. This function reduces the generation of DHT. However, these formulations have many restrictions in use due to side effects or precautions for use.

The problem to be solved by the present invention is to provide a composition for preventing hair loss or promoting hair growth.

In addition, the problem to be solved by the present invention is to provide a hair or scalp product comprising the composition for preventing hair loss or promoting hair growth.

The present inventors can improve the problems such as side effects and precautions for use of the conventional hair loss treatment, and can effectively act on hair growth and hair growth while being safe for the human body without the disadvantages such as hair loss prevention / hair growth promoting effect is weak. As a result of diligent efforts to develop a composition, the present invention has been found to have a remarkably excellent effect on preventing hair loss and promoting hair growth, thereby completing the present invention.

Specifically, the inventors of the present invention confirmed that escin promotes the activity of the Wnt / β-catenin signaling system in the dermal papilla cells, promotes the proliferation of the dermal papilla cells, and increases the expression level of β-catenin. In other words, it was confirmed through in-vitro experiment that escin plays an important role in moving the hair menstrual cycle from degenerative phase to activator by amplifying Wnt / β-catenin signal transduction of dermal papilla cells. In addition, the inventors of the present invention confirmed that when treating the hair loss treatment composition comprising escin to alopecia patients, there is a remarkably excellent effect in improving the thickness, density and elasticity of the hair. Additionally, as a result of comparative experiments with commercially available minoxidil, it was confirmed that the composition for treating hair loss comprising escin of the present invention is similar to or superior to minoxidil in hair loss prevention and hair growth.

The present invention provides a composition for preventing hair loss or promoting hair growth, comprising escin as an active ingredient.

In one embodiment, the amount of escin contained as an active ingredient of the composition for preventing hair loss or promoting hair growth of the present invention is 0.001 to 10% by weight, preferably 0.01 to 5% by weight, more preferably 0.1 to 2, based on the total weight of the composition. Weight percent. In the present invention, when the escin is 0.001 to 10% by weight relative to the total weight of the composition, it has been shown to have an excellent effect in preventing hair loss and promoting hair growth in-vitro or clinically. When the amount of escin is less than 0.001% by weight, the hair growth induction promoting effect is insignificant, and when it exceeds 10% by weight, problems with the stability of the formulation may be inhibited and skin irritation may occur. Even more preferably, the content of escin may be 0.5 to 2% by weight, and most preferably 1 to 2% by weight based on the total weight of the composition. In the present invention, it was confirmed through experiment that the remarkable excellent hair growth promoting and hair loss prevention effect when the escin is in the above content range.

In one embodiment, the composition for preventing hair loss or promoting hair growth of the present invention may be used as a pharmaceutical composition, a quasi-drug composition, or a cosmetic composition. The composition of the present invention may be formulated in any form that is typically applicable to the skin, but may preferably be formulated in the form of an external preparation for the skin. The composition of the present invention may be prepared in a formulation that can be applied to the skin, for example, liquid, cream, paste, or solid.

Escine of the present invention may be included in the composition or formulation as a hair loss preventing agent or hair growth promoter.

When the formulation of the present invention is a liquid, a solvent, a solubilizer or an emulsifier may be used as the carrier component, for example, water, ethanol, isopropanol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1, 3-butylglycol oil, glycerol aliphatic ester, polyethylene glycol or fatty acid ester of sorbitan and the like can be used.

When the formulation of the present invention is a paste, cream or gel, animal oil, vegetable oil, wax, paraffin, starch, trakant, cellulose derivative, polyethylene glycol, silicone, bentonite, silica, talc or zinc oxide may be used as a carrier component. have.

When the formulation of the present invention is a powder or spray, lactose, talc, silica, aluminum hydroxide, calcium silicate or polyamide powder may be used as the carrier component. Especially in the case of spray formulations it may additionally comprise propellants such as chlorofluorohydrocarbons, propane / butane or dimethyl ether and the like.

The components included in the composition of the present invention may include components conventionally used in external preparations that can be applied to the skin in addition to escin. For example, one or more additives selected from the group consisting of water, surfactants, moisturizers, lower alcohols, chelating agents, fungicides, antioxidants, preservatives, pigments and fragrances and the like may be further included.

The present invention also provides a hair or scalp product comprising the composition for preventing hair loss or promoting hair growth. Hair or scalp products include hair regrowth, scalp clinic, scalp scaling, scalp massage, scalp care, cleanser, shampoo, tonic, hair conditioner, hair lotion, gel, pack, cream, essence, powder, spray, oil , Soap, ointment, hair styling agent, hair dye, and a pump may be any one selected from the group consisting of, but is not limited thereto.

In one embodiment of the present invention, the composition for preventing hair loss or promoting hair growth was prepared as a formulation of hair tonic and hair lotion (Examples 1,2,3,4,5,6 and Example 7).

The composition for promoting hair growth of the present invention may be preferably used in a method of transdermal administration such as direct application or spraying on the skin.

As used herein, the term “administration” may mean introducing the composition of the present invention in any suitable manner. The route of administration of the compositions of the present invention may be administered via any general route as long as it can reach the desired tissue. Preferably, it can be transdermally administered, among which topical application is most preferred. The number of applications of the compositions of the present invention can be determined according to prescription, need or desire.

The amount of the composition of the present invention can be appropriately adjusted according to individual differences or formulations such as age, degree of lesion, etc., and it is generally preferred to use an appropriate amount once or several times a day on the scalp and use it for one week to several months. In the embodiment of the present invention, the composition 1 for hair loss treatment was used 5 times a week for 6 months, and as a result, it was confirmed that an excellent hair growth promoting effect appeared (Experimental Example 4).

The composition for preventing hair loss and promoting hair growth of the present invention promotes hair growth by delaying the transition from the resting phase to the growth phase of the hair growth cycle by escin, which is included as an active ingredient, and slows the conversion to the degenerative hair loss. Excellent prevention and hair growth promoting effect.

Figure 1 shows the results of the analysis of the amplification effect of escin Wnt / β-catenin promoter activity in dermal papilla cells.
Figure 2 shows the experimental results confirming the increase in the expression level of β-catenin by escin in breast papilla cells.

Hereinafter, examples and the like will be described in detail to help understand the present invention. However, embodiments according to the present invention can be modified in many different forms, the scope of the invention should not be construed as limited to the following examples. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art.

Examples 1 to 6: Hair loss treatment / hair growth composition 1 (hair tonic)

In accordance with the prescription shown in Table 1 below, the hair tonic of Examples and Comparative Examples containing escin was prepared by a conventional method.

Ingredient Weight ratio (%) Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 ethanol 55 55 55 55 55 55 55 Castor Oil 5 5 5 5 5 5 5 glycerin 3 3 3 3 3 3 3 Essin - 0.01% 0.1% 0.5% One % 2% 5% Spices and Colors Quantity Quantity Quantity Quantity Quantity Quantity Quantity Purified water Balance (total 100)

Example 7 Hair Loss Treatment / Hair Regrowth Composition 2 (Hair)

To prepare a hair lotion containing escin in a conventional manner according to the prescription shown in Table 2.

Ingredient Weight ratio (%) Cetostearyl alcohol 2 Stearyl Triethyl Ammonium Chloride 2 Hydroxyethyl cellulose 0.5 Essin 2 Spices and Colors Quantity Purified water Balance (total 100)

Experimental Example 1: effect of regulation of dermal papilla cell activity signal (Wnt / β-catenin)

In general, the wnt / β-catenin signal activated in the dermal papilla occurs during the active phase of hair growth from the degenerative phase of the hair growth cycle, ie from the beginning of hair growth. In addition, in the resting phase and the degenerative phase, the wnt / β-catenin signal is weakened or disappeared, causing hair follicles to degenerate and hair fall out. In this experimental example, it was confirmed how the escin contributes to the wnt / β-catenin signal amplification.

The wnt3a protein was used as a positive control to amplify the Wnt / β-catenin signal, and DMSO was used as a negative control. Approximately 3 × 10 ⁴ Wnt reporter HEK293A cells were seeded into each well in culture 96-well plates, and then escin was treated at concentrations of 5 μg / ml, 10 μg / ml and 20 μg / ml, respectively. Then, using Promega Luciferase assay kit (Luciferase assay kit) (E1960), the reporter was analyzed according to the manufacturer's experimental method. Wnt / β-catenin promoter activity was measured using a luminometer Victor (PerkinElmer, Waltham, Massachusetts, USA), and the analysis results are shown in FIG. 1.

Based on the experimental results, escin amplified the Wnt / β-catenin signal by 11 times compared to the untreated negative control. The experimental group containing escin did not show a concentration-dependent pattern, but confirmed a repetitive positive effect near the concentration of 20 μg / ml. In particular, escin was shown to be superior to wnt3a protein, a positive control that binds to the direct receptor of Wnt / β-catenin. Therefore, it can be confirmed that escin has a remarkably excellent hair growth promoting effect by greatly promoting the activity of the Wnt / β-catenin signaling system, which is a hair growth promoting signal of hair follicle stem cells.

Experimental Example 2: effect of promoting papilla cell proliferation

Human dermal papilla cells (DPCs) were purchased from Promocell. The DPCs were cultured under 37 ° C. and 5% CO ₂ conditions using Follicle Dermal Papilla Cell Growth Medium and supplement mix recommended by Promocell. Cultured DPCs 3,000 cells / well were dispensed into 96-well plates and incubated for 24 hours in 0.1% serum conditions. Subsequently, the cultured cells were treated with DMSO (vehicle) diluted 1: 1000 in serum-free DMEM as a control, and treated with incineration for 0.2 days, 0.5, 1,2, and 5 µg / ml, respectively, for 1 day. After incubation, the degree of proliferation of the cells was evaluated using the CCK method. CCK-8 was incubated in the culture solution at 1:10 and incubated for 1 hour. After 1 hour, the absorbance of each well was measured at 450 nm. All experiments were repeated three times and the average of absorbance values calculated. The results were expressed as percentage of treated group with control as 100. As a result, it was confirmed that the treatment of escin showed the proliferation effect of DPCs, and that the papillary cell proliferation effect was excellent.

Treatment group Treatment concentration Dermal papilla cell proliferation (%) No treatment group - 100.0 Essin 0.2 μg / ml 168.8 0.5 μg / ml 198.7 1 μg / ml 194.4 2 μg / ml 204.8 5 μg / ml 208.3

Experimental Example 3: Increased expression of dermal papilla cells β-catenin

Β-catenin is degraded by GSK3-beta in resting and degenerative dermal papilla cells where Wnt signaling is inhibited. However, since the activity of GSK3-beta is inhibited in the activator dermal papilla cells in which the Wnt signal is amplified, β-catenin is not degraded and the expression level of β-catenin increases. Human dermal papilla cells were dispensed into 6 well plates at about 500,000 cell / well, and then escin was treated with 0.2, 0.5, 1,2 and 5 μg / ml for 1 day and incubated. After incubation, cells were lysed using M-PER lysis buffer and the same amount of cell lysate was loaded on SDS-PAGE gels. Cell lysates loaded on SDS-PAGE gels were transferred to nitrocellulose membranes, and then anti-β-catenin antibodies were attached to nitrocellulose membranes to detect proteins. GAPDH was used as a control to correct protein levels. The amount of β-catenin increased by escin was confirmed, and the results are shown in FIG. 2.

As a result, it was confirmed that the amount of β-catenin increased significantly in the group treated with escin compared to the untreated group, which means that the Wnt / β-catenin signal of dermal papilla cells was increased.

Experimental Example 4: Confirming the hair growth effect of hair loss treatment / hair growth composition 1 (hair tonic)

The hair growth effect of hair loss treatment / hair growth composition 1 (hair tonic) of the present invention was tested in a total of 105 men and women whose hairs were significantly smaller than normal or had hair loss symptoms. A total of 105 men and women were divided into seven groups of 15 people each of Comparative Example 1 and Examples 1 to 6, and were used for hair and scalp five times a week for 6 months. After use, the hair thickness, density, elasticity, and overall evaluation items were evaluated by dividing the degree of improvement or damage into five stages (improved: +5, +4, +3, +2, +1, improvement). None: 0, degree of damage: -1, -2, -3, -4, -5). The evaluation was determined as the average value of the user questionnaire results after 6 months of use, and the results are shown in Table 4.

sample Hair thickness Density Elasticity Overall rating Comparative Example 1 -0.5 ± 0.2 0.1 ± 0.2 -0.1 ± 0.2 -0.21 ± 0.2 Example 1 2.1 ± 0.2 1.5 ± 0.2 2.5 ± 0.2 2.0 ± 0.2 Example 2 3.2 ± 0.1 2.6 ± 0.2 2.6 ± 0.5 2.8 ± 0.2 Example 3 4.5 ± 0.3 4.3 ± 0.2 3.8 ± 0.3 4.2 ± 0.1 Example 4 4.6 ± 0.2 4.3 ± 0.1 4.8 ± 0.3 4.6 ± 0.2 Example 5 4.8 ± 0.2 4.6 ± 0.1 4.3 ± 0.2 4.6 ± 0.1 Example 6 3.1 ± 0.4 2.1 ± 0.3 2.3 ± 0.6 2.5 ± 0.2

As can be seen from the above results, it was confirmed that high anti-hair loss and hair growth effect in Examples 1 to 6 containing escin. Through this, it was proved that the composition for promoting hair loss prevention hair growth of the present invention containing escin as an active ingredient can be used very effectively for hair loss treatment.

Experimental Example 5: Confirm the hair growth effect of hair loss treatment / hair growth composition 1 (hair tonic)

The hair growth effect of hair loss treatment / hair growth composition 1 (hair tonic) of the present invention was tested in a total of 105 men and women whose hairs were significantly smaller than normal or had hair loss symptoms. A total of 105 men and women were divided into seven groups of 15 people each of Comparative Example 1 and Examples 1 to 6, and were used for hair and scalp five times a week for 6 months. After the use, the evaluation was conducted by investigator and clinical phototrigram. In the clinical evaluation, the researchers evaluated 3 items of 'good' and 'slight' and 'no change' for the comparative and experimental examples 2, 4 and 6 months after application (Good: 50% ~ 75% Improved, Slight: improved 25% -50%, no change: no change). Evaluation of the number of hairs per unit area and the average hair thickness through the phototriogram was measured for the Comparative Examples and Examples 4 and 6 months after application, and the results are shown in Table 5.

sample Researcher evaluation through clinical picture Photo Trigogram No change
(persons) Slight
(persons) Good
(persons) Hair count per unit area (pcs / cm2) Average hair thickness
(μm) February April June February April June February April June 0 Month April June 0 Month April June Comparative Example 1 13 13 12 2 One 2 0 0 One 372 ± 42 375 ± 53 379 ± 24 60 ± 5 60 ± 3 62 ± 2 Example 1 9 8 8 5 6 4 One One 3 370 ± 27 382 ± 37 397 ± 38 65 ± 4 65 ± 5 67 ± 3 Example 2 8 7 7 4 6 5 3 2 3 327 ± 20 367 ± 39 384 ± 26 60 ± 4 65 ± 8 69 ± 3 Example 3 6 6 4 3 2 3 6 7 8 356 ± 28 364 ± 19 398 ± 22 64 ± 6 69 ± 3 76 ± 7 Example 4 4 4 2 8 6 3 3 5 10 334 ± 33 383 ± 33 403 ± 54 61 ± 8 64 ± 3 72 ± 2 Example 5 3 3 3 8 5 One 4 7 11 322 ± 24 387 ± 46 397 ± 28 64 ± 7 68 ± 5 75 ± 5 Example 6 6 6 5 3 2 3 6 7 7 384 ± 41 394 ± 18 408 ± 47 62 ± 6 62 ± 4 69 ± 5

As can be seen from the above results, it was confirmed that high anti-hair loss and hair growth effect in Examples 1 to 6 containing escin. Through this, it was proved that the composition for promoting hair loss prevention hair growth of the present invention containing escin as an active ingredient can be used very effectively for hair loss treatment.

Formulation examples such as the hair tonic or hair lotion are only examples of the composition for promoting hair growth of the present invention, and it will be apparent to those skilled in the art that the scope of the present invention is not limited to these formulations only. .

Claims (8)

Hair loss prevention or hair growth promoting composition comprising escin as an active ingredient. The composition for preventing hair loss or promoting hair growth according to claim 1, wherein the content of the active ingredient is 0.001 to 10% by weight based on the total weight of the composition. The composition for preventing hair loss or promoting hair growth according to claim 1, wherein the composition promotes proliferation of dermal papilla cells. The composition for preventing hair loss or promoting hair growth according to claim 1, wherein the composition is a pharmaceutical composition. The composition for preventing hair loss or promoting hair growth according to claim 1, wherein the composition is a quasi-drug composition. The composition for preventing hair loss or promoting hair growth according to claim 1, wherein the composition is a cosmetic composition. Hair or scalp product for preventing hair loss or promoting hair growth comprising escin as an active ingredient. The method of claim 7, wherein the product is a hair regrowth, scalp clinic, scalp scaling, scalp massage, scalp care, cleaning agent, shampoo, tonic, hair conditioner, hair lotion, gel, pack, cream, essence, powder, spray , Hair, scalp products selected from the group consisting of oils, soaps, ointments, hair styling agents, hair dyes and perm agents.

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