JP2024031642A - A beauty method to enhance the physiological effects of riboflavin using visible light - Google Patents
A beauty method to enhance the physiological effects of riboflavin using visible light Download PDFInfo
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Abstract
【課題】可視光の照射により、薬効が増大する成分を取得することを課題とする。【解決手段】紫外線は、マトリクスプロテイナーゼ及び/又は炎症性サイトカインの発現を促進する。リボフラビンはこうして亢進された発現を抑制する生理作用を発揮する。一方、可視光下におかれることで、リボフラビンの生理作用が増強され、マトリクスプロテイナーゼ及び/又は炎症性サイトカインの発現はさらに抑制されることを見出した。これにより、リボフラビンを含む皮膚外用剤を適用し、可視光を照射することを含む、リボフラビンの生理作用を増強するための美容方法、紫外線を可視光へと変換する波長変換物質と、リボフラビンとを含む、皮膚外用組成物、リボフラビンを含む皮膚外用剤と、可視光域の波長で、1000~10000Luxの可視光を照射する美容照射器とを含む、美容キットを提供する。【選択図】図1A-BAn object of the present invention is to obtain a component whose medicinal efficacy is increased by irradiation with visible light. Ultraviolet light promotes the expression of matrix proteinases and/or inflammatory cytokines. Riboflavin exerts a physiological effect that suppresses this enhanced expression. On the other hand, it has been found that by being exposed to visible light, the physiological effects of riboflavin are enhanced and the expression of matrix proteinase and/or inflammatory cytokines is further suppressed. As a result, we have developed a cosmetic method for enhancing the physiological effects of riboflavin, which includes applying a topical skin preparation containing riboflavin and irradiating it with visible light, a wavelength converting substance that converts ultraviolet rays into visible light, and riboflavin. The present invention provides a beauty kit, which includes a skin external composition containing, a skin external preparation containing riboflavin, and a beauty irradiator that irradiates visible light of 1000 to 10000 Lux at a wavelength in the visible light range. [Selection diagram] Figure 1A-B
Description
本発明は、リボフラビンを含む皮膚外用剤を適用し、可視光下におくことを含む、リボフラビンの生理作用を増強するための美容方法、紫外線を可視光へと変換する波長変換物質とリボフラビンとを含む、皮膚外用組成物、並びにリボフラビンを含む皮膚外用剤と、可視光を照射する照射器とを含む、美容キットにも関する。 The present invention relates to a cosmetic method for enhancing the physiological action of riboflavin, which includes applying a topical skin preparation containing riboflavin and exposing it to visible light, and a method for enhancing the physiological effects of riboflavin, which includes riboflavin and a wavelength converting substance that converts ultraviolet rays into visible light. The present invention also relates to a beauty kit comprising a composition for external use on the skin, an external preparation for skin containing riboflavin, and an irradiator that irradiates visible light.
自然光は、主に紫外線、可視光、及び赤外線に大別される。紫外線は、皮膚癌、光老化、しみ、しわ、炎症といった悪影響を皮膚に及ぼすことが知られており、健康や美容の観点からも好ましくない。紫外線からから肌を防御するための方策が数多く取られている。例えば、日焼け止め剤の使用や、日光に当たらないような屋内での活動、UVカット加工された帽子や衣類、紫外線カットフィルムの使用などが挙げられる。一方で、可視光には、細胞を活性化する効果を有することが報告されており、特定波長を有する可視光を照射する美容方法や美容機器が開発されている。一例として630nm程度の赤色光は、皮膚深部へと到達し、マクロファージの働きを向上すること、真皮細胞を活性化することなどが報告されている。より短い波長の黄色光や緑色光では、表皮細胞が活性化され、メラニン産生抑制などの作用や、角層ターンオーバーの向上などの効能が期待されている。紫外線を避けつつ、可視光の細胞作用を利用することを目的として、照射された紫外線の波長を吸収し、そしてより長い波長の光を放出する波長変換物質を利用した美容方法や化粧品の開発が進められている。 Natural light is mainly classified into ultraviolet light, visible light, and infrared light. Ultraviolet rays are known to have adverse effects on the skin, such as skin cancer, photoaging, age spots, wrinkles, and inflammation, and are undesirable from the viewpoint of health and beauty. Many measures have been taken to protect the skin from ultraviolet radiation. Examples include using sunscreen, staying indoors to avoid exposure to sunlight, using hats and clothing with UV protection, and using UV protection film. On the other hand, it has been reported that visible light has the effect of activating cells, and beauty methods and beauty devices that irradiate visible light with a specific wavelength have been developed. For example, it has been reported that red light of about 630 nm reaches deep into the skin, improves the function of macrophages, and activates dermal cells. Yellow and green light with shorter wavelengths activate epidermal cells, and are expected to have effects such as suppressing melanin production and improving stratum corneum turnover. With the aim of utilizing the cellular effects of visible light while avoiding ultraviolet rays, the development of beauty methods and cosmetics that utilize wavelength conversion substances that absorb the wavelength of irradiated ultraviolet rays and emit light with longer wavelengths has been developed. It is progressing.
本発明の課題は、可視光により、薬効が増大する成分を取得することに関する。 An object of the present invention is to obtain a component whose medicinal efficacy is increased by visible light.
本発明者らは、薬効を有する成分のうち、可視光によりその薬効が増大する成分を見出だすため、スクリーニングを行ったところ、水溶性ビタミンの1種であるリボフラビンが可視光によりその薬効を増大可能な成分であることが見いだされた。より具体的に、リボフラビンは、炎症性サイトカインの発現抑制及びマトリクスプロテイナーゼ発現抑制という薬効を有しており、紫外線により亢進された発現を抑制することができるが、紫外線照射に加えて、可視光を照射することにより、炎症性サイトカイン及びマトリクスプロテイナーゼの発現がさらに抑制されることを見出し、本発明に至った。
そこで本願は、以下の発明を提供する。
[1] リボフラビンを含む皮膚外用剤を適用し、可視光下におくことを含む、リボフラビンの生理作用を増強するための美容方法。
[2] リボフラビンの生理作用の増強により、肌荒れ、シワ、又はしみを抑制するか、或いは美白又は抗老化をもたらす、項目1に記載の美容方法。
[3] リボフラビンの生理作用が、ケラチノサイトにおけるマトリクスプロテイナーゼ又は炎症性サイトカインの発現抑制である、項目1に記載の美容方法。
[4] 紫外線を可視光へと変換する波長変換剤と、リボフラビンとを含む、皮膚外用組成物。
[5] 前記波長変換剤が、紫外線から可視光へ波長を変換し、可視光がリボフラビンの生理作用を増強する、項目4に記載の皮膚外用組成物。
[6] 前記波長変換剤が、紫外線を、450~700nm、450~600nm、又は500~550nmにピーク波長を有する可視光へと変換する、項目5に記載の皮膚外用組成物。
[7] 前記波長変換剤が、酸化亜鉛蛍光体である、項目5に記載の皮膚外用組成物。
[8] リボフラビンを含む皮膚外用剤と、可視光域の波長で、1000~10000Luxの可視光を照射する美容照射器とを含む、美容キット。
The present inventors conducted a screening to find a component that increases its medicinal efficacy when exposed to visible light, and found that riboflavin, a type of water-soluble vitamin, increased its medicinal efficacy when exposed to visible light. It has been found to be a scalable component. More specifically, riboflavin has the medicinal effect of suppressing the expression of inflammatory cytokines and matrix proteinase, and can suppress the expression promoted by ultraviolet rays. It was discovered that irradiation further suppresses the expression of inflammatory cytokines and matrix proteinase, leading to the present invention.
Therefore, the present application provides the following invention.
[1] A cosmetic method for enhancing the physiological action of riboflavin, which comprises applying a topical skin preparation containing riboflavin and exposing the skin to visible light.
[2] The beauty method according to
[3] The cosmetic method according to
[4] A skin external composition containing a wavelength converting agent that converts ultraviolet rays into visible light and riboflavin.
[5] The skin external composition according to
[6] The composition for external use on skin according to
[7] The skin external composition according to
[8] A beauty kit comprising a skin external preparation containing riboflavin and a beauty irradiator that irradiates visible light of 1000 to 10000 Lux at a wavelength in the visible light range.
本発明は、リボフラビンを含む皮膚外用剤を皮膚に適用後に、可視光下におくことにより、リボフラビンの生理作用が増強される。 In the present invention, the physiological action of riboflavin is enhanced by applying a skin external preparation containing riboflavin to the skin and then exposing it to visible light.
本発明は、リボフラビンを含む皮膚外用剤を適用し、可視光下におくことを含む、リボフラビンの生理作用を増強するための美容方法に関する。 The present invention relates to a cosmetic method for enhancing the physiological action of riboflavin, which includes applying a topical skin preparation containing riboflavin and exposing the skin to visible light.
本発明において、リボフラビンを含む皮膚外用剤が適用された皮膚が、可視光下におかれることで、リボフラビンの生理作用が亢進する。可視光は、照射器を用いて直接照射されてもよいし、波長変換物質を介して放出された光により間接的に照射されてもよい。可視光の照射とともに、紫外線が照射されてもよい。紫外線は、皮膚に対して有害な生理作用を引き起こしうる。一例として、活性酸素種の増大や、マトリクスプロテイナーゼの活性化、DNA損傷の誘導などが挙げられる。また、紫外線は、マトリクスプロテイナーゼ及び/又は炎症性サイトカインの発現を亢進し、こうして亢進された発現を、リボフラビンは抑制する生理作用を発揮する。一方、可視光下におかれることで、リボフラビンの生理作用が増強され、マトリクスプロテイナーゼ及び/又は炎症性サイトカインの発現はさらに抑制される(図1)。可視光下におかれるとは、日常生活における電灯や太陽光への曝露であってもよいし、照射器を用いた可視光の照射であってもよい。太陽光に暴露される場合、太陽光に含まれる紫外線の影響を和らげるために、波長変換物質及び/又は紫外線吸収物質が併用されることが好ましい。本発明の美容方法は、例えば美容サロンなどで、医師以外の美容施術者により、特定の波長の可視光を照射可能な照射器を用いて行われうる。 In the present invention, the physiological action of riboflavin is enhanced by exposing the skin to which the external skin preparation containing riboflavin has been applied to visible light. The visible light may be directly irradiated using an irradiator, or may be irradiated indirectly by light emitted through a wavelength converting substance. In addition to visible light irradiation, ultraviolet rays may be irradiated. Ultraviolet radiation can cause harmful physiological effects on the skin. Examples include increasing reactive oxygen species, activating matrix proteinases, and inducing DNA damage. Furthermore, ultraviolet rays enhance the expression of matrix proteinases and/or inflammatory cytokines, and riboflavin exerts a physiological effect of suppressing the expression thus enhanced. On the other hand, by being exposed to visible light, the physiological effects of riboflavin are enhanced, and the expression of matrix proteinase and/or inflammatory cytokines is further suppressed (FIG. 1). Being exposed to visible light may mean exposure to electric lights or sunlight in daily life, or irradiation with visible light using an irradiator. When exposed to sunlight, it is preferable to use a wavelength converting substance and/or an ultraviolet absorbing substance in order to soften the effects of ultraviolet rays contained in sunlight. The beauty method of the present invention can be performed, for example, in a beauty salon or the like by a beauty practitioner other than a doctor using an irradiator capable of emitting visible light of a specific wavelength.
本発明において照射される可視光は、特にフラボノイドの生理作用を促進する観点から、450nm~700nmにピーク波長を有する可視光が使用され、可視光のピークはさらに450~600nm、特に500~550nmに存在することが好ましい。赤色光を照射する観点では可視光のピーク範囲は600~700nmが好ましく、黄色光を照射する観点では可視光のピーク範囲は550~600nmが好ましく、緑色光を照射する観点では可視光のピーク範囲は500~550nmが好ましい。可視光の強度は、適宜選択することができるが、1000~10000Luxの間で適宜選択することができる。このような可視光の波長及び強度は、本技術分野に周知の照射器を用いることで照射することが可能である。所定のピーク範囲には単一のピークが存在することが好ましいが、2つ又は複数のピークが存在してもよい。ピークが重なることで、ピークの判別が難しくなっていてもよい。単一ピークの可視光を照射する観点から、照射器としてはLEDを用いることが好ましい。また、発光体にたいしフィルムなどを用いてピーク範囲を絞ることもできる。 The visible light irradiated in the present invention is a visible light having a peak wavelength of 450 to 700 nm, particularly from the viewpoint of promoting the physiological action of flavonoids, and the peak of the visible light is further 450 to 600 nm, particularly 500 to 550 nm. Preferably present. From the viewpoint of irradiating red light, the peak range of visible light is preferably 600 to 700 nm, from the viewpoint of irradiating yellow light, the peak range of visible light is preferably 550 to 600 nm, and from the viewpoint of irradiating green light, the peak range of visible light is preferably 600 to 700 nm. is preferably 500 to 550 nm. The intensity of visible light can be selected as appropriate, and can be appropriately selected between 1000 and 10000 Lux. Such visible light wavelengths and intensities can be applied using illuminators well known in the art. Preferably, a single peak is present in a given peak range, but two or more peaks may be present. Overlapping peaks may make it difficult to distinguish between peaks. From the viewpoint of irradiating visible light with a single peak, it is preferable to use an LED as the irradiator. Furthermore, the peak range can be narrowed down by using a film or the like for the light emitter.
本発明の皮膚外用剤は、リボフラビンを含んでいれば任意の皮膚外用剤であってもよく、リボフラビン含有エキスを含む皮膚外用剤であってもよい。このような皮膚外用剤は、医薬品、医薬部外品、化粧品等であってもよい。本発明の美容方法において用いる皮膚外用剤の剤型、塗布法、投与回数等は任意に決定できる。例えば、化粧水、スプレー、オイル、クリーム、乳液、ゲル、サンスクリーン剤、サンタン剤、といった形態であってもよい。本発明の美容方法における可視光照射前に、皮膚外用剤を1回又は複数回塗布し、その後すぐに、又は一定期間、例えば10分~数時間あけて、可視光を照射してもよい。可視光の照射に代えて、屋外又は点灯された屋内で活動することで、可視光を照射されてもよい。 The external skin preparation of the present invention may be any external skin preparation as long as it contains riboflavin, or may be an external skin preparation containing a riboflavin-containing extract. Such external skin preparations may be pharmaceuticals, quasi-drugs, cosmetics, and the like. The dosage form, application method, number of administrations, etc. of the skin external preparation used in the cosmetic method of the present invention can be arbitrarily determined. For example, it may be in the form of a lotion, spray, oil, cream, emulsion, gel, sunscreen, or suntan agent. Before visible light irradiation in the cosmetic method of the present invention, the skin external preparation may be applied once or multiple times, and then visible light may be irradiated immediately or after a certain period of time, for example, 10 minutes to several hours. Instead of being irradiated with visible light, visible light may be irradiated when the subject is active outdoors or indoors with lights on.
リボフラビンは、ビタミンB2としても知られており、生体内では、脂肪、炭水化物、及びタンパク質の代謝や呼吸、赤血球の形成に寄与することが知られている。リボフラビンは、皮膚、爪、頭髪をはじめとした健康維持に不可欠であり、不足することで、口内炎、皮膚炎、角膜炎、脱毛、充血などの症状が引き起こされる。皮膚機能を正常に保つ観点から、化粧料や医薬品に配合されうる。リボフラビンの皮膚における作用として、UV誘導性の炎症性サイトカイン(IL-1α、GM-CSF)のmRNA発現抑制作用が示された(非特許文献1:PLoS One. 2016 Sep 20;11(9):e0161580. doi: 10.1371)。また、同文献では、リボフラビンの皮膚における作用として、UV誘導性のMMP1のmRNA発現抑制作用が示された一方、MMP1のタンパク質量は変化しないことが示されているた。 Riboflavin is also known as vitamin B2, and is known to contribute to the metabolism of fats, carbohydrates, and proteins, respiration, and the formation of red blood cells in vivo. Riboflavin is essential for maintaining the health of the skin, nails, and hair, and a deficiency causes symptoms such as stomatitis, dermatitis, keratitis, hair loss, and hyperemia. It can be added to cosmetics and medicines to maintain normal skin function. As an effect of riboflavin on the skin, it has been shown to suppress the mRNA expression of UV-induced inflammatory cytokines (IL-1α, GM-CSF) (Non-Patent Document 1: PLoS One. 2016 Sep 20;11(9): e0161580. doi: 10.1371). Further, in the same literature, as an effect of riboflavin on the skin, it was shown that UV-induced MMP1 mRNA expression was suppressed, but the protein amount of MMP1 was not changed.
炎症性サイトカインは、物理、化学、または生物的刺激を受けた細胞が放出し、炎症を誘発するサイトカインである。炎症性サイトカインが放出されると、炎症性サイトカイン放出部位への免疫細胞の集積を誘発し、また免疫細胞の活性化及び増殖を促進する。炎症性サイトカインとしては、IL-8、IL-6、IL-1β、IL-1α、IL-10、INF-γ、TNF-α、及びGM-CSFが挙げられる。なかでも、ケラチノサイトで発現する観点から、炎症性サイトカインとしてIL-8、TNF-αが好ましい。炎症性サイトカイン発現が異常に亢進されることにより、肌荒れや、アトピー性皮膚炎、乾癬などの炎症性疾患の原因となり、またメラノサイトを活性化し肌色(スキントーン)の変調を引き起こしうる。したがって、炎症性サイトカインの発現を抑制することで、肌荒れ、しみを予防、軽減、治療又は抑制することができ、また抗老化作用及び美白作用を発揮することができる。 Inflammatory cytokines are cytokines released by cells that undergo physical, chemical, or biological stimulation and induce inflammation. When inflammatory cytokines are released, they induce the accumulation of immune cells at the site of inflammatory cytokine release and promote activation and proliferation of immune cells. Inflammatory cytokines include IL-8, IL-6, IL-1β, IL-1α, IL-10, INF-γ, TNF-α, and GM-CSF. Among these, IL-8 and TNF-α are preferred as inflammatory cytokines from the viewpoint of being expressed in keratinocytes. Abnormally enhanced expression of inflammatory cytokines can cause rough skin, inflammatory diseases such as atopic dermatitis, and psoriasis, and can also activate melanocytes and cause changes in skin tone. Therefore, by suppressing the expression of inflammatory cytokines, rough skin and age spots can be prevented, alleviated, treated, or suppressed, and anti-aging and whitening effects can be exerted.
マトリクスプロテイナーゼとしては、マトリクスメタロプロテイナーゼファミリーに属する任意のマトリクスプロテイナーゼであってよいが、特に皮膚において発現する観点から、MMP1、MMP2、MMP9、及び/又はMMP13が好ましい。マトリクスプロテイナーゼは、コラーゲン、プロテオグリカン、エラスチンなどからなる細胞外マトリクスを分解する。紫外線照射により皮膚、特に表皮及び/又は真皮においてマトリクスプロテイナーゼの発現が亢進し、細胞外マトリクスが分解され、シワやたるみの原因となる。また、分解物がシグナルとなり、種々の生理現象を引き起こしうる。したがって、マトリクスプロテイナーゼの発現を抑制することにより、シワを予防、軽減、治療又は抑制するか、或いは抗老化作用を発揮することができる。 The matrix proteinase may be any matrix proteinase belonging to the matrix metalloproteinase family, but MMP1, MMP2, MMP9, and/or MMP13 are particularly preferred from the viewpoint of expression in the skin. Matrix proteinases degrade extracellular matrices consisting of collagen, proteoglycans, elastin, etc. Ultraviolet irradiation increases the expression of matrix proteinase in the skin, particularly in the epidermis and/or dermis, degrading the extracellular matrix and causing wrinkles and sagging. In addition, decomposition products can serve as signals and cause various physiological phenomena. Therefore, by suppressing the expression of matrix proteinase, wrinkles can be prevented, reduced, treated, or suppressed, or anti-aging effects can be exerted.
リボフラビンが、皮膚、特に表皮細胞における生理作用としては、炎症性サイトカイン及び/又はマトリクスプロテイナーゼ発現抑制作用が挙げられる。理論に限定されることを意図するものではないが、リボフラビンによりケラチノサイトにおいて炎症性サイトカイン及び/又はマトリクスプロテイナーゼ発現抑制し(図1)、それによりシワ、又はしみを抑制するか、或いは美白又は抗老化をもたらしうる。 Physiological effects of riboflavin on the skin, particularly on epidermal cells, include suppressing the expression of inflammatory cytokines and/or matrix proteinases. Without intending to be limited by theory, it is believed that riboflavin suppresses inflammatory cytokine and/or matrix proteinase expression in keratinocytes (Figure 1), thereby inhibiting wrinkles or age spots, or whitening or anti-aging. can bring about
リボフラビンにより発揮される生理作用を発揮させるために、リボフラビンに代えて、リボフラビンを含むエキスを含む皮膚外用剤使用してもよい。このようなエキスとしては、リボフラビン、特にリボフラビンを含む原料から取得されたエキスが使用可能であり、一例として酵母エキス、キノコエキス、肉エキス、魚エキス、肝油などが使用されうる。 In order to exert the physiological effects exerted by riboflavin, a skin external preparation containing an extract containing riboflavin may be used instead of riboflavin. As such an extract, riboflavin, particularly an extract obtained from a raw material containing riboflavin can be used, and examples include yeast extract, mushroom extract, meat extract, fish extract, cod liver oil, and the like.
本明細書に記載されるエキスは常法により得ることができ、例えばその起源となる植物を抽出溶媒とともに常温又は加熱して浸漬または加熱還流した後、濾過し、濃縮して得ることができる。抽出溶媒としては、通常抽出に用いられる溶媒であれば任意に用いることができ、例えば、水性溶媒、例えば水、生理食塩水、リン酸緩衝液、ホウ酸緩衝液、あるいは有機溶媒、例えばエタノール、プロピレングリコール、1,3-ブチレングリコール、グリセリン等のアルコール類、含水アルコール類、クロロホルム、ジクロルエタン、四塩化炭素、アセトン、酢酸エチル、ヘキサン等を、それぞれ単独あるいは組み合わせて用いることができる。好ましくは、溶媒として水とアルコール、例えば1,3-ブチレングリコールの混合溶媒が使用される。上記溶媒で抽出して得られた抽出物をそのまま、あるいは例えば凍結乾燥などにより濃縮したエキスを使用でき、また必要であれば吸着法、例えばイオン交換樹脂を用いて不純物を除去したものや、ポーラスポリマー(例えばアンバーライトXAD-2)のカラムにて吸着させた後、所望の溶媒で溶出し、さらに濃縮したものも使用することができる。 The extract described in this specification can be obtained by a conventional method, for example, by immersing the plant of origin with an extraction solvent at room temperature or heating, or heating and refluxing, filtering, and concentrating. As the extraction solvent, any solvent commonly used for extraction can be used, such as an aqueous solvent such as water, physiological saline, a phosphate buffer, a borate buffer, or an organic solvent such as ethanol, Alcohols such as propylene glycol, 1,3-butylene glycol, and glycerin, hydrous alcohols, chloroform, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, hexane, and the like can be used alone or in combination. Preferably, a mixed solvent of water and alcohol, such as 1,3-butylene glycol, is used as the solvent. The extract obtained by extraction with the above solvent can be used as it is, or an extract concentrated by freeze-drying can be used. If necessary, an extract with impurities removed using an adsorption method, such as an ion exchange resin, or a porous extract can be used. It is also possible to use a product that is adsorbed on a column of polymer (for example, Amberlite XAD-2), eluted with a desired solvent, and further concentrated.
本発明において波長変換物質は、特定の波長の入射光を吸収し、入射光よりも長い波長の出射光を放出する物質をいう。本発明の波長変換物質が吸収する入射光は、紫外線が好ましい。紫外線は、UVA、UVB、UVC等を含んでもよい。ある実施形態では、紫外線は、200nm~400nmにピーク波長を有する光である。また、例えば太陽光といった入射光に紫外線が含まれていてもよい。あるいは、入射光が紫外線であってもよく、人工的に生成された紫外線を用いてもよい。 In the present invention, a wavelength conversion substance refers to a substance that absorbs incident light of a specific wavelength and emits output light of a longer wavelength than the incident light. The incident light absorbed by the wavelength conversion substance of the present invention is preferably ultraviolet light. Ultraviolet light may include UVA, UVB, UVC, and the like. In some embodiments, the ultraviolet light is light with a peak wavelength between 200 nm and 400 nm. Furthermore, incident light such as sunlight may include ultraviolet rays. Alternatively, the incident light may be ultraviolet light, or artificially generated ultraviolet light may be used.
波長変換物質により放出される出射光は、紫外線よりも波長が長く、好ましくは450nm~700nm、例えば500nm~700nm又は450~600nm、さらに好ましくは500~550nmにピーク波長を有する。出射光は、例えば、限定されないものの、450nm、460nm、470nm、480nm、490nm、500nm、510nm、520nm、530nm、540nm、550nm、560nm、570nm、580nm、590nm、600nm、610nm、620nm、630nm、640nm、650nm、660nm、670nm、680nm、690nm、700nm、あるいはこれらの数値の任意の範囲内に1又は複数のピークを有してもよいし、あるいは、赤色光、橙色光、緑色光、青色光等であってもよい。ある実施形態では、波長変換物質は、200nm~400nmの励起光で励起した際に発する光の主波長が450nm~700nm、例えば500nm~700nm又は450~600nm、さらに好ましくは500~550nmを示す。 The output light emitted by the wavelength conversion substance has a longer wavelength than ultraviolet light, preferably having a peak wavelength in the range of 450 nm to 700 nm, such as 500 nm to 700 nm or 450 to 600 nm, more preferably 500 to 550 nm. The emitted light is, for example, but not limited to, 450nm, 460nm, 470nm, 480nm, 490nm, 500nm, 510nm, 520nm, 530nm, 540nm, 550nm, 560nm, 570nm, 580nm, 590nm, 600nm, 610nm, 620nm, 630nm. nm, 640 nm, It may have one or more peaks at 650nm, 660nm, 670nm, 680nm, 690nm, 700nm, or any range of these values, or it may have red light, orange light, green light, blue light, etc. There may be. In one embodiment, the wavelength converting material exhibits a dominant wavelength of light emitted when excited with excitation light of 200 nm to 400 nm, such as 500 nm to 700 nm or 450 to 600 nm, more preferably 500 to 550 nm.
波長変換物質の例として、以下の成分が挙げられる:アロフィコシアニン、C-フィコシアニン、R-フィコシアニン、フィコエリスロシアニン、B-フィコエリスリン、b-フィコエリスリン、C-フィコエリスリン、R-フィコエリスリンなどのフィコビリ蛋白;ビタミンA、βカロテン、ビタミンK、ビタミンB1、ビタミンB6、ビタミンB12、葉酸、ナイアシン、リコピン、クチナシ、ベニバナ、ウコン、コチニール、シソ、赤キャベツ、フラボノイド、カロテノイド、キノイド、ポルフィリン類、アントシアニン類、ポリフェノール類などの天然由来又は合成成分;赤色401号、赤色227号、赤色504号、赤色218号、橙色205号P、黄色4号、黄色5号、緑色201号、ピラニンコンク、青色1号、塩酸2、4-ジアミノフェノキシエタノール、アリズリンパープルSS、紫色401号、黒色401号、へリンドンピンク、黄色401号、ベンチジンエローG、青色404号、赤色104号、メタアミノフェノールなどの色素;無機化合物にドープし蛍光を持たせた蛍光体、例えば、特許第6424656号に記載の非晶質シリカ粒子と、セリウムと、リン及び/又はマグネシウムとを含む青色蛍光体および特許第6361416号に記載のアルカリ土類金属硫化物とガリウム化合物との混晶物にユーロピウムを賦活した化合物を含む赤色蛍光体、国際公開第2018/004006号に記載の酸化亜鉛蛍光体、特開2018-131422号に記載の酸化亜鉛蛍光体;特開平5-117127号に記載の無機蛍光体;等が挙げられる。ある実施形態では、無機蛍光体は、ZnO:Zn、Zn1+z、ZnO1-xのように表すことができる酸化亜鉛を国際公開第2018/004006号に記載の、例えば硫化亜鉛、硫酸亜鉛等の硫化塩及び/又は硫酸塩といった硫黄含有化合物でドープした蛍光体、MgTiO3、Mg2TiO4といったチタン酸マグネシウムをマンガンでドープしたチタン酸マグネシウム蛍光体、及びCa(H2PO4)2、CaHPO4、Ca3(PO4)2といったリン酸カルシウムをセリウムでドープしたリン酸カルシウム蛍光体から選択される1種又は複数種の蛍光体である。別の例では、酸化亜鉛蛍光体は、酸化亜鉛を還元焼成することで得られ、酸素欠陥を有しており、平均組成式はZn1+zO又はZnO1-xで表されると考えられているものである。 Examples of wavelength converting substances include the following components: allophycocyanin, C-phycocyanin, R-phycocyanin, phycoerythrocyanin, B-phycoerythrin, b-phycoerythrin, C-phycoerythrin, R-phycocyanin. Phycobiliproteins such as coerythrin; vitamin A, β-carotene, vitamin K, vitamin B1, vitamin B6, vitamin B12, folic acid, niacin, lycopene, gardenia, safflower, turmeric, cochineal, perilla, red cabbage, flavonoids, carotenoids, quinoids, Naturally derived or synthetic ingredients such as porphyrins, anthocyanins, polyphenols; Red No. 401, Red No. 227, Red No. 504, Red No. 218, Orange No. 205 P, Yellow No. 4, Yellow No. 5, Green No. 201, Pyranine Conc. , Blue No. 1, 2,4-diaminophenoxyethanol hydrochloride, Alizurin Purple SS, Purple No. 401, Black No. 401, Herringdon Pink, Yellow No. 401, Benzidine Yellow G, Blue No. 404, Red No. 104, Meta-aminophenol dyes such as; phosphors doped with inorganic compounds to give fluorescence; for example, blue phosphors containing amorphous silica particles, cerium, phosphorus and/or magnesium described in Patent No. 6424656; A red phosphor containing a compound in which europium is activated in a mixed crystal of an alkaline earth metal sulfide and a gallium compound described in No. 6361416, a zinc oxide phosphor described in International Publication No. 2018/004006, and JP-A-2018- Examples include the zinc oxide phosphor described in No. 131422; the inorganic phosphor described in JP-A-5-117127; and the like. In some embodiments, the inorganic phosphor comprises zinc oxide, which can be represented as ZnO:Zn, Zn 1+z , ZnO 1-x, as described in WO 2018/004006, e.g., zinc sulfide, zinc sulfate. phosphors doped with sulfur-containing compounds such as sulfides and/or sulfates, magnesium titanate phosphors doped with manganese, and magnesium titanate phosphors doped with manganese, such as MgTiO 3 , Mg 2 TiO 4 , and Ca(H 2 PO 4 ) 2 , CaHPO 4 , Ca 3 (PO 4 ) 2 , which are calcium phosphate phosphors doped with cerium. In another example, zinc oxide phosphor is obtained by reducing and firing zinc oxide, has oxygen defects, and is thought to have an average compositional formula of Zn 1+z O or ZnO 1-x . This is what is being done.
波長変換物質は、動物、植物、藻類等の天然物から抽出などの方法により得ても、化学的な合成といった人工的な方法により得てもよい。例えば、フィコビリ蛋白は、スピルリナ(Spirulina platensis)などの藍藻類、チノリモ(Porphyridium purpureum)などの紅藻類といった藻類を、例えば特許第4048420号、特許第4677250号、特許第3303942号等に記載の方法で抽出することにより調製してもよい。酸化亜鉛蛍光体は、例えば国際公開第2018/004006号、特開2018-131422号、特開平5-117127号に記載の方法により製造してもよい。チタン酸マグネシウム蛍光体は、特開2017-88719号に記載の方法により製造してもよい。リン酸カルシウム蛍光体は、国際公開第2018/117117号に記載の方法により製造してもよい。なかでも、変換後の波長が500~550nmである観点から、酸化亜鉛蛍光体が好ましい。 The wavelength conversion substance may be obtained by a method such as extraction from natural products such as animals, plants, and algae, or may be obtained by an artificial method such as chemical synthesis. For example, phycobiliproteins can be obtained by using algae such as blue-green algae such as Spirulina platensis and red algae such as Porphyridium purpureum by the method described in Patent No. 4048420, Patent No. 4677250, Patent No. 3303942, etc. It may also be prepared by extraction. The zinc oxide phosphor may be produced, for example, by the method described in International Publication No. 2018/004006, Japanese Patent Application Publication No. 2018-131422, and Japanese Patent Application Publication No. 5-117127. The magnesium titanate phosphor may be manufactured by the method described in JP-A-2017-88719. The calcium phosphate phosphor may be manufactured by the method described in International Publication No. 2018/117117. Among these, zinc oxide phosphors are preferred from the viewpoint that the wavelength after conversion is 500 to 550 nm.
これらの波長変換物質は、本発明の波長変換効果を損なわない限り、上で例示した成分から構成されてもよく、含まれていてもよく、単体で使用しても複数種を混合してもよい。例えば、上記フィコビリ蛋白や無機物蛍光体に他の波長変換物質、例えば、ビタミンB(ビタミンB1、ビタミンB6、ビタミンB12等)を混合し相乗的な効果を目指してもよい。しかしながら、これらの成分は例示であり本発明の波長変換効果を奏するいかなる物質も使用可能である。 These wavelength conversion substances may be composed of or contained in the components exemplified above, and may be used alone or in combination of multiple types, as long as the wavelength conversion effect of the present invention is not impaired. good. For example, a synergistic effect may be achieved by mixing other wavelength converting substances such as vitamin B (vitamin B1, vitamin B6, vitamin B12, etc.) with the phycobiliprotein or inorganic phosphor. However, these components are just examples, and any substance that exhibits the wavelength conversion effect of the present invention can be used.
本発明の別の態様は、紫外線を可視光へと変換する波長変換物質と、リボフラビンとを含む、皮膚外用組成物に関する。かかる皮膚外用組成物には、波長変換物質が、リボフラビンの生理作用増強剤として配合される。これにより、皮膚外用組成物を皮膚に適用し、光照射下におかれた場合に、波長変換物質が、紫外線から可視光へ波長を変換し、可視光がリボフラビンの生理作用を増強することができる。リボフラビンの生理作用を増強することにより、特に炎症性サイトカイン及び/又はマトリクスプロテイナーゼ発現抑制作用を亢進し、それにより肌荒れ、シワ、シミ、たるみ、皮膚老化(特に光老化)、紅斑、日焼けなどの炎症を抑制する作用を発揮することができる。したがって、本発明の皮膚外用組成物は、抗酸化酵素発現促進剤であってもよいし、肌荒れ、シワ、シミ、たるみ、皮膚老化の抑制剤、紅斑、日焼けなどの炎症抑制剤、或いは美白又は抗老化剤であってもよい。本発明に係る皮膚外用組成物は、定期的又は不定期的に、例えば、朝、昼、夕方など1日1回~数回、外出、野外活動、マリンスポーツ、スキーなど日差しを浴びることが予想される前などにその都度、皮膚に塗布するものであってよい。 Another aspect of the present invention relates to a skin external composition comprising a wavelength converting substance that converts ultraviolet rays into visible light and riboflavin. A wavelength converting substance is blended into such a composition for external use on the skin as a physiological action enhancer of riboflavin. As a result, when the skin external composition is applied to the skin and placed under light irradiation, the wavelength conversion substance converts the wavelength from ultraviolet rays to visible light, and the visible light enhances the physiological action of riboflavin. can. By enhancing the physiological effects of riboflavin, it particularly enhances the inhibitory effect on inflammatory cytokine and/or matrix proteinase expression, thereby causing inflammation such as rough skin, wrinkles, spots, sagging, skin aging (particularly photoaging), erythema, and sunburn. can exert the effect of suppressing Therefore, the skin external composition of the present invention may be an antioxidant enzyme expression promoter, an agent for suppressing rough skin, wrinkles, spots, sagging, skin aging, an agent for suppressing inflammation such as erythema and sunburn, or an agent for whitening or It may also be an anti-aging agent. The composition for external use on the skin according to the present invention is expected to be exposed to sunlight regularly or irregularly, for example, once to several times a day, such as in the morning, afternoon, and evening, while going out, doing outdoor activities, marine sports, skiing, etc. It may be applied to the skin each time, such as before being treated.
また、本発明の皮膚外用剤又は皮膚外用組成物は、必要に応じて、例えば、賦形剤、保存剤、増粘剤、結合剤、崩壊剤、分散剤、安定化剤、ゲル化剤、酸化防止剤、界面活性剤、保存剤、油分、粉末、水、アルコール類、増粘剤、キレート剤、シリコーン類、酸化防止剤、保湿剤、香料、各種薬効成分、防腐剤、pH調整剤、中和剤等の添加剤を任意に選択し併用することができる。さらに、本発明の効果を高めるために、他の細胞賦活化剤等を併用してもよい。 In addition, the external skin preparation or skin external composition of the present invention may contain, as necessary, excipients, preservatives, thickeners, binders, disintegrants, dispersants, stabilizers, gelling agents, Antioxidants, surfactants, preservatives, oils, powders, water, alcohols, thickeners, chelating agents, silicones, antioxidants, humectants, fragrances, various medicinal ingredients, preservatives, pH adjusters, Additives such as neutralizing agents can be arbitrarily selected and used in combination. Furthermore, in order to enhance the effects of the present invention, other cell activators and the like may be used in combination.
本発明のさらなる態様では、本発明は、リボフラビンを含む皮膚外用剤と、可視光域の波長、特に450~700nm、450~600nm、又は500~550nmの波長で、1000~10000Luxの可視光を照射する照射器とを含む、美容キットに関していてもよい。かかる美容キットは、購入者により使用されてもよいし、美容施術者により使用されてもよい。可視光を照射する照射器は、本技術分野に周知の照射器を用いることで照射することが可能である。所定のピーク範囲の可視光を照射する観点から、LEDを用いることが好ましい。 In a further aspect of the present invention, the present invention provides a topical skin preparation containing riboflavin and irradiation with visible light of 1000 to 10000 Lux at a wavelength in the visible light range, particularly 450 to 700 nm, 450 to 600 nm, or 500 to 550 nm. The present invention may also relate to a beauty kit, which includes a irradiator for irradiation. Such a beauty kit may be used by a purchaser or a beauty practitioner. The irradiator that irradiates visible light can be irradiated by using an irradiator that is well known in this technical field. From the viewpoint of irradiating visible light in a predetermined peak range, it is preferable to use an LED.
次に実施例によって本発明を更に詳細に説明する。なお、本発明はこれにより限定されるものではない。 Next, the present invention will be explained in more detail with reference to Examples. Note that the present invention is not limited to this.
実験1:細胞培養
1.正常ヒト表皮角化細胞(KK-4109 クラボウ社)をHuMedia-KG2培地(KK-2150S クラボウ)を用いて培養した。
2.細胞が約50%コンフルエントに達した後にEpiLife培地(MEPI500CA ThermoFisher社)に培地交換した。
3.24時間後にリボフラビン添加群にはリボフラビン(R4500 Sigma-Ardrich社)を終濃度5μMになるように添加した。
4.リボフラビン添加24時間後、光照射に先立ち培地をHanks’Balanced Salt Solution(HBSS)に交換した。
5.紫外線(UVB)照射群には、TL20W/12RSランプ(PHILIPS)とUG11フィルター(SCHOTT社)を用いて10mJ/cm2照射した。
6.紫外線と可視光の両方を照射する群には、紫外線照射後にソーラシミュレータ(91192-1000 Newport社)とKG1およびGG420フィルター(SCHOTT社)を用いて可視光を照射した(波長400nmから800nmの積算照射量は50J/cm2)。
7.光照射終了後に培地をHBSSからEpiLife培地に交換し、さらに24時間培養した。リボフラビン添加群にはリボフラビンを終濃度5μMになるように添加した。
Experiment 1:
2. After the cells reached approximately 50% confluence, the medium was replaced with EpiLife medium (MEPI500CA ThermoFisher).
3. After 24 hours, riboflavin (R4500 Sigma-Ardrich) was added to the riboflavin addition group at a final concentration of 5 μM.
4. 24 hours after addition of riboflavin, the medium was replaced with Hanks' Balanced Salt Solution (HBSS) prior to light irradiation.
5. The ultraviolet (UVB) irradiation group was irradiated with 10 mJ/cm 2 using a TL20W/12RS lamp (PHILIPS) and a UG11 filter (SCHOTT).
6. For the group to be irradiated with both ultraviolet and visible light, after ultraviolet irradiation, visible light was irradiated using a solar simulator (91192-1000 Newport) and KG1 and GG420 filters (SCHOTT) (integrated irradiation from wavelength 400 nm to 800 nm). The amount is 50 J/cm 2 ).
7. After completion of light irradiation, the medium was exchanged from HBSS to EpiLife medium, and the cells were cultured for an additional 24 hours. Riboflavin was added to the riboflavin-added group at a final concentration of 5 μM.
実験2:RT-PCR
1.実験1終了後直ちに、RNeasy Mini Kit(QIAGEN社)を製品説明書に沿って使用しRNAを抽出した。
2.各検体より抽出したRNAサンプルについて、QuantiTect SYBR Green RT-PCR Kit(204243, QIAGEN)およびライトサイクラー(Roche社)を用いて製品説明書に従ってRT-PCR反応を行ない、IL8、TNFα、MMP1、MMP9および内部標準としてグリセルアルデヒド-3-リン酸デヒドロゲナーゼ(GAPDH)のmRNA量を定量した。実験に用いたプライマーの配列を以下に示す。
3.各サンプルのGAPDH発現量に対するIL8、TNFα、MMP1、MMP9の相対発現量を求め、比較検討した。
Experiment 2: RT-PCR
1. Immediately after the completion of
2. RNA samples extracted from each specimen were subjected to RT-PCR reaction using QuantiTect SYBR Green RT-PCR Kit (204243, QIAGEN) and Light Cycler (Roche) according to the product instructions, and IL8, TNFα, MMP1, MMP9 and The amount of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) mRNA was quantified as an internal standard. The sequences of the primers used in the experiment are shown below.
3. The relative expression levels of IL8, TNFα, MMP1, and MMP9 with respect to the GAPDH expression level of each sample were determined and compared.
以上、本発明の実施の形態について説明してきた。しかしながら、本発明はこれらに限定されるものではなく、化粧料、医薬品組成物等、発明の趣旨を逸脱しない範囲で適宜変更可能である。 The embodiments of the present invention have been described above. However, the present invention is not limited to these, and may be modified as appropriate to cosmetics, pharmaceutical compositions, etc. without departing from the spirit of the invention.
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