JP2004307456A - Caspase-8 activity inhibitor-containing composition - Google Patents

Caspase-8 activity inhibitor-containing composition Download PDF

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JP2004307456A
JP2004307456A JP2003158138A JP2003158138A JP2004307456A JP 2004307456 A JP2004307456 A JP 2004307456A JP 2003158138 A JP2003158138 A JP 2003158138A JP 2003158138 A JP2003158138 A JP 2003158138A JP 2004307456 A JP2004307456 A JP 2004307456A
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Prior art keywords
extract
family
caspase
assicha
bark
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Japanese (ja)
Inventor
Toshihiko Hibino
利彦 日比野
Yumiko Tsuji
弓子 辻
Kenichi Umishio
健一 海塩
Takashi Momoi
隆 桃井
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Shiseido Co Ltd
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Shiseido Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a medicine or cosmetic preparation containing a caspase-8 inhibitor which is useable for prophylaxis/treatment of diseases which presence of caspase 8 involves, or suppression of skin cell death by UVB. <P>SOLUTION: The caspase-8 inhibitor comprises one or a plurality of crude medicine extracts selected from the group consisting of an extract of Thea sinensis L.(Theaceae) of the family Theaceae, an extract of Potentilla tormentilla Neck. of the family Rosaceae, an extract of Thea sinensis L. of the family Theaceae, an extract of Thea sinensis L. var. assamica Pierre of the family Theaceae, an extract of Tilia cordata Miller of the family Tiliaceae, an extract of Vitis vinifera L. of the family Vitaceae, an extract of Eucalyptus globulus Labillardiere of the family Vitaceae, an extract of Symphytum officinale L., an extract of Juliania adstringens of the family Boraginaceae, an aerial part extract of Rumex salicifolius Weinm, a leaf extract of Arctostaphylos patula Greene of the family Ericaceae, a bark extract of Calophyllum brasiliensis Cambess of the family Guttiferae, a trunk extract of Grewia salutaris Span of the family Tiliaceae, a bark extract of Persea americana Mill of the family Lauraceae, a bark extract of Boswellia serrata of the family Burseraceae, a bark extract of Symplocos racemosa of the family Symplocaceae, a bark extract of Ficus religiosa of the family Moraceae and a bark extract of Stereospermum suaveolens of the family Bignoniaceae. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、カスパーゼ−8の活性を阻害する組成物に関する。
【0002】
【従来の技術】
アポトーシスは発生過程における不要細胞の排除、恒常性維持のための細胞の除去、感染症や癌に対する生体防御の目的で引き起こされる細胞死であり、様々なシグナル伝達系を介して実行される。アポトーシスは様々な疾患における病態に関与していることも報告され、その人為的な制御は様々な疾患の治療に有効であるものと考えられている。このアポトーシス分子機構に深く関与しているのがシステインプロテアーゼであるカスパーゼ分子群であり、現在までにヒト、マウスに由来のものを含め、約15種類の存在が知られている。
【0003】
アポトーシスの分子機構は大きく分けてミトコンドリアを介する経路で活性化が行われる内因系活性化系と、ミトコンドリアを介さない経路で活性化が行われる外因系活性化系との二つの経路がある。
外因系活性化経路においては、アポトーシスを誘導するTNFファミリーに属するデスリガンドとしてTNF−α、Fasリガンド、TRAIL(TNF関連アポトーシス誘導リガンド)等が知られており、それぞれ標的細胞の特異的なデスレセプターに結合してアポトーシスを誘導する。デスレセプターの細胞内領域にはデスドメインと称される特異的なアミノ酸配列領域がある。デスリガンドが作用するとこの領域にFADD、TRADDといったアダプター分子がそのデスドメインを介して結合する。このアダプター分子はさらにDED(デスエフェクタードメイン)と称される領域をもち、同様にDEDを有するカスパーゼ−8に結合し、それを活性化する。活性化されたカスパーゼ−8は、アポトーシス実行に関わる実行カスパーゼ−3、6、7を活性化する。このように、カスパーゼ−8が外因系活性化経路における開始カスパーゼを担う。
【0004】
カスパーゼ−8は他のカスパーゼ分子群と同様活性中心にシステイン残基をもつプロテアーゼであり、不活性型のプロカスパーゼの状態で存在し、切断されることで活性化される。カスパーゼ−8の全長配列についてはhttp://www−personal.umich.edu/ ̄ino/List/31919.htmにおいて公開されている。
【0005】
開始カスパーゼを司ることで、カスパーゼ−8は様々な疾患、例えば脳梗塞等の脳神経疾患、アルツハイマー病、ハンチントン病等の変性疾患に関与することが示唆されている(実験医学 Vol.18, No.3(8月号)2000)。カスパーゼ−8の他にFas誘導アポトーシスやヒト黒色腫細胞のUVB照射によるカスパーゼ−3媒介アポトーシス経路の活性化などが報告されている(Park K.H. et al., Photodermatol Photoimmunol Photomed 2001 Oct. 17(5):218−222及びCollin C. et al., Journal of Biological Chemistry, Vol.276, No.40. 2001, pp. 37602− 37611)。このように、カスパーゼ−8は様々な疾患における病態やUVBによる皮膚細胞死に関与していることから、その人為的な制御は神経疾患を含む様々な疾患の治療・予防に有効となり得るものと考えられている。
【非特許文献1】
実験医学 Vol.18, No.3(8月号)2000
【非特許文献2】
Collin C. et al., Journal of Biological Chemistry, Vol.276, No .40. 2001, pp. 37602− 37611
【0006】
【発明が解決しようとする課題】
本発明は、上記カスパーゼ−8の活性を阻害し、その結果カスパーゼ−8の存在が関与する疾患の予防・治療に使用できる、またはUVBによる皮膚細胞死を抑制できる医薬又は化粧製剤の提供を課題とする。
【0007】
【課題を解決するための手段】
本発明者は数ある生薬の中から、下記の生薬がカスパーゼ−8の酵素活性を効果的に阻害できることを見出し、本発明を完成するに至った:
ツバキ科チャノキ葉(Thea sinensis L.(Theaceae)) エキス
バラ科トルメンチラ(Potentilla tormentilla Neck.)エキス
ツバキ科コウチャ(Thea sinensis L.)エキス
ツバキ科アッサムチャ(Thea sinensis L. var. assamica Pierre)エキス
シナノキ科ボダイジュ(Tilia cordata Miller(和名:フエボダイジュ)エキス
ブドウ科ブドウ葉(Vitis vinifera L.)エキス
ユーカリ(Eucalyptus globulus Labillardiere)エキス
ムラサキ科コンフリー(Symphytum officinale L.(和名:ヒレハリソウ))エキス
ユリアニア科クアチャララーテ(Juliania adstringens)エキス
ダテ科(Rumex salicifolius Weinm)地上部エキス
ツツジ科(Arctostaphylos patula Greene)葉エキス
オトギリソウ科(Calophyllum brasiliensis Cambess)樹皮エキス
シナノキ科(Grewia salutaris Span)幹エキス
クスノキ科(Persea americana Mill)樹皮エキス
カンラン科(Boswellia serrata)樹皮エキス
ハイノキ科(Symplocos racemosa)樹皮エキス
クワ科(Ficus religiosa)樹皮エキス
ノウゼンカズラ科(Stereospermum suaveolens)樹皮エキス。
【0008】
従って、本発明は上記生薬を1又は複数種、カスパーゼ−8活性阻害成分として含んで成る、カスパーゼ−8阻害組成物を提供する。
【0009】
【発明の実施の形態】
カスパーゼ−8の属するカスパーゼ分子群はシステインプロテアーゼであり、Asp−X結合(ここで「X」は任意のアミノ酸である)基質切断活性を有する。従って、カスパーゼ−8の活性、即ち、基質切断活性は、この酵素を例えば合成蛍光基質アセチル−Ile−Glu−Thr−Asp−メチルクマリンアミド(Ac−IETD−MCA)に作用させ、Asp−X結合の切断結果遊離する蛍光物質メミノメチルクマリンに由来する蛍光を測定することで決定することができる。従って、本発明でいうカスパーゼ−8活性とは、カスパーゼ−8がもつAsp−X結合特異的基質切断活性を意味し得る。
【0010】
本発明者はカスパーゼ−8の基質切断特性を阻害する生薬をスクリーニングするため、上記基質を用いて種々の生薬のカスパーゼ−8活性阻害作用を調べた。詳しくは、Ac−IETD−MCAを含む緩衝液にリコンビナントカスパーゼ−8および種々のサンプル生薬を加えてインキュベートして酵素反応させ、遊離したアミノメチルクマリンの蛍光強度を、サンプル生薬を加えずに同様の条件下で酵素反応させたコントロールの値と比較することで、各生薬のカスパーゼ−8活性阻害作用を調べた。
【0011】
リコンビナントカスパーゼ−8は例えばKoeplinger et al. Protein expression and Purification 18, 378−387, 2000の記載に従い作製でき、具体的には以下のようにして作製できる。
カスパーゼ−8はどのような細胞でも発現しているので、適当な培養細胞から例えばIsogenなどを用いてRNAを取得し、RT−PCRによりその遺伝子のcDNAを得ることができる。通常、6個のヒスチジン残基の結合した(His−tag)リコンビナントタンパク質として作製することができる。これには、pQE30(QIAGEN)というプラスミドベクタ−を用いる。cDNAを適当な制限酵素サイトを付加したリンカープライマーを用いて増幅し、当確ベクターに組み込む。これを大腸菌(例えばJM109やBL21)にトランスフォームし、LB倍地中で一晩培養する。IPTG添加により、目的のタンパク質を合成させ、しばらく培養した後、大腸菌を溶解し、上清をニケルカラムにアプライする。良く洗浄した後、250mM程度のイミダゾールを含む緩衝液をカラムに流すことにより、結合したHis−tagのついたリコンビナントカスパーゼ−8を精製することができる。
【0012】
カスパーゼ−8の活性を効果的に阻害することのできる本発明に係る植物生薬エキスを得るには、好ましくは抽出植物材料を乾燥し、必要に応じて小片化又は破砕してよい。抽出剤としては、水、有機液剤、水に混和性の有機溶剤と水との混合溶剤等が使用でき、水に混和性の有機溶剤と水との混合溶液が特に好ましい。有機溶剤としては、エタノール、メタノール等が挙げられる。エタノール水溶液が好ましく、特に70%エタノール水溶液が好ましい。抽出濃度としては、室温〜抽出剤の沸点までの温度を使用することができ、20℃〜37℃が特に好ましい。抽出は3時間〜7日間行ってよい。
【0013】
エキスは、減圧蒸発等常法に従って溶剤を除去して乾燥することもでき、また抽出溶剤として非毒性の溶剤、例えば、水、エタノール水溶液等を使用した場合には、抽出液をそのままで、又は適当に濃縮して用いることができる。
【0014】
本発明に係るカスパーゼ−8の活性阻害組成物はカスパーゼ−8の活性を抑制する様々な目的に使用することができる。例えば、本発明にかかる阻害組成物はカスパーゼ−8の存在が関与する神経疾患、例えば脳梗塞等の脳神経疾患、アルツハイマー病、ハンチントン病等の変性疾患の治療又は予防のための医薬製剤、UVB照射を原因とする皮膚細胞死による皮膚老化の治療又は予防のための医薬製剤又は化粧製剤等として利用できる。
【0015】
上記医薬製剤又は化粧製剤は、通常、上記生薬エキスを水やエタノール等の水性溶媒に含有させて用いられる。本発明にかかる生薬エキスの配合量は特に限定されないが、例えば0.01〜10重量%、特に0.1〜5.0重量%程度の範囲が好ましい。上記水性溶媒としては、低級アルコールが好ましく、低級アルコールの含有量は、当該医薬製剤又は化粧製剤中に、20〜80重量%、さらに好ましくは40〜60重量%である。
【0016】
また、上記医薬製剤又は化粧製剤には、上記必須成分以外に、通常化粧品や医薬品等の皮膚外用剤に用いられる成分、例えば、その他の美白剤、保湿剤、酸化防止剤、油性成分、紫外線吸収剤、界面活性剤、増粘剤、アルコール類、粉末成分、色剤、水性成分、水、各種皮膚栄養剤等を必要に応じて適宜配合することができる。
【0017】
その他、薬剤の用途に合わせ、エデト酸二ナトリウム、エデト酸三ナトリウム、クエン酸ナトリウム、ポリリン酸ナトリウム、メタリン酸ナトリウム、グルコン酸等の金属封鎖剤、カフェイン、タンニン、ベラパミル、トラネキサム酸およびその誘導体、甘草抽出物、グラブリジン、カリンの果実の熱水抽出物、各種生薬、酢酸トコフェロール、グリチルリチン酸およびその誘導体またはその塩等の薬剤、ビタミンC、アスコルビン酸リン酸マグネシウム、アスコルビン酸グルコシド、アルブチン、コウジ酸等の他の美白剤、グルコース、フルクトース、マンノース、ショ糖、トレハロース等の糖類、レチノイン酸、レチノール、酢酸レチノール、パルミチン酸レチノール等のビタミンA類なども適宜配合することができる。
【0018】
上記医薬製剤又は化粧製剤剤は、その用途に合わせ、例えば化粧料、医薬品、医薬部外品等の外用剤、例えば化粧水、クリーム、乳液、ローション、パック、浴用剤、軟膏、ヘアーローション、ヘアートニック、ヘアーリキッド、シャンプー、リンス、養毛・育毛剤等、従来皮膚外用剤に用いるものであればいずれでもよく、剤型は特に問わない。
【0019】
以下に本発明の限定でない実施例を提供する。
【0020】
【実施例】
カスパーゼ−8の活性阻害物質のスクリーニング法
カスパーゼ−8の活性測定は、合成の蛍光基質アセチル−Ile−Glu−Thr−Asp−メチルクマリンアミド(Ac−IETD−MCA)を用いて行った。10mMのAc−IETD−MCA 10μl、100mMのジチオスレイトール1μl、1MのTris−HCl(pH7.5)5μl、蒸留水75μlを含む緩衝液に4μlのリコンビナントカスパーゼ−8およびサンプル生薬5μl(50μg)を加えて、37℃で30分間インキュベートした。
【0021】
反応は0.1Mクロロ酢酸2mlを添加して停止させ、遊離したメミノメチルクマリンの460nmの蛍光強度(励起波長380nm)をフルオロメーターで測定した。サンプルのカスパーゼ−8阻害活性は、溶媒コントロールに対する値として示す。
【0022】
その結果、以下の生薬エキスがカスパーゼ−8の活性を有為に阻害した:

Figure 2004307456
【0023】
【発明の効果】
上記生薬含有組成物はカスパーゼ−8の特異的基質切断活性を阻害できる。従って、上記生薬含有組成物は、カスパーゼ−8の存在が関与する神経疾患、例えば脳梗塞等の脳神経疾患、アルツハイマー病、ハンチントン病等の変性疾患の治療又は予防のための医薬製剤、UVB照射を原因とする皮膚細胞死による皮膚老化の治療又は予防のための医薬製剤又は化粧製剤等として利用できる。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to compositions that inhibit the activity of caspase-8.
[0002]
[Prior art]
Apoptosis is cell death caused by the purpose of eliminating unnecessary cells during development, removing cells to maintain homeostasis, and protecting the body against infectious diseases and cancer, and is carried out through various signaling systems. Apoptosis has also been reported to be involved in the pathology of various diseases, and its artificial control is considered to be effective in treating various diseases. Caspase molecules, which are cysteine proteases, are deeply involved in this apoptotic molecular mechanism, and about 15 types of them have been known to date, including those derived from humans and mice.
[0003]
The molecular mechanisms of apoptosis are roughly classified into two pathways: an endogenous activation system in which activation is performed by a mitochondrial-mediated pathway, and an extrinsic activation system in which activation is performed by a non-mitochondrial-mediated pathway.
In the extrinsic system activation pathway, TNF-α, Fas ligand, TRAIL (TNF-related apoptosis-inducing ligand) and the like are known as death ligands belonging to the TNF family that induce apoptosis. And induces apoptosis. The intracellular region of the death receptor has a specific amino acid sequence region called a death domain. When a death ligand acts, an adapter molecule such as FADD or TRADD binds to this region via its death domain. This adapter molecule also has a region called DED (Deseffector Domain), which also binds to and activates Caspase-8 with DED. Activated caspase-8 activates executive caspase-3, 6, 7 which is involved in the execution of apoptosis. Thus, caspase-8 is responsible for the starting caspase in the extrinsic activation pathway.
[0004]
Caspase-8 is a protease having a cysteine residue in the active center, like other caspase molecules, exists in an inactive form of procaspase, and is activated by cleavage. For the full-length sequence of caspase-8, see http: // www-personal. umich. edu / @ ino / List / 31919. http://www.htm.org.
[0005]
By controlling the initiation caspase, it has been suggested that caspase-8 is involved in various diseases, for example, cerebral nerve diseases such as cerebral infarction, and degenerative diseases such as Alzheimer's disease and Huntington's disease (Experimental Medicine Vol. 18, No. 1; 3 (August) 2000). In addition to caspase-8, it has been reported that Fas-induced apoptosis and activation of caspase-3-mediated apoptosis pathway by UVB irradiation of human melanoma cells (Park KH et al., Photodermatol Photoimmunol Photomated 2001 Oct. 17). (5): 218-222 and Collin C. et al., Journal of Biological Chemistry, Vol.276, No. 40. 2001, pp. 37602-37611). As described above, since caspase-8 is involved in the pathology of various diseases and skin cell death due to UVB, it is thought that artificial control thereof may be effective for treatment and prevention of various diseases including neurological diseases. Have been.
[Non-patent document 1]
Experimental Medicine Vol. 18, No. 3 (August) 2000
[Non-patent document 2]
Collin C.I. et al. , Journal of Biological Chemistry, Vol. 276, no. 40. 2001, pp. 37602-37611
[0006]
[Problems to be solved by the invention]
An object of the present invention is to provide a pharmaceutical or cosmetic preparation which inhibits the activity of caspase-8 and can be used for the prevention and treatment of diseases associated with the presence of caspase-8, or which can suppress UVB-induced skin cell death. And
[0007]
[Means for Solving the Problems]
The present inventors have found that, among a number of crude drugs, the following crude drugs can effectively inhibit the enzyme activity of caspase-8, and have completed the present invention:
Camellia family leaf tree (Thea sinensis L. (Theaceae)) Extract rose family Tormentilla (Pentilla tormentilla Neck.) Extract Camellia family koucha (Thea sinensis L.) Therticaceae family Asacha L.a. Butterfly (Tilia cordata Miller (Japanese name: Huebodaiju) extract Grape family vine leaf (Vitis vinifera L.) Extract Eucalyptus (Eucalyptus globulus Labillardiere) Extract Berberaceae extract (Symphytium oleica fulica) Family quacharate ( uliania adstringens) Ekisudate family (Rumex salicifolius Weinm) above-ground parts extract Ericaceae (Arctostaphylos patula Greene) leaf extract hypericaceae (Calophyllum brasiliensis Cambess) bark extract linden family (Grewia salutaris Span) stem extract Lauraceae (Persea americana Mill) bark extract olivine Family (Boswellia serrata) bark extract Symphococcus racemosa bark extract Mulberry family (Ficus religiosa) bark extract Russellaceae (Stereospermum suaveolens) bark extract.
[0008]
Accordingly, the present invention provides a caspase-8 inhibiting composition comprising one or more of the above crude drugs as a caspase-8 activity inhibiting component.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
A group of caspase molecules to which caspase-8 belongs are cysteine proteases, and have Asp-X bond (where "X" is any amino acid) substrate cleavage activity. Therefore, the activity of caspase-8, ie, the substrate cleavage activity, is determined by allowing the enzyme to act on, for example, the synthetic fluorescent substrate acetyl-Ile-Glu-Thr-Asp-methylcoumarinamide (Ac-IETD-MCA) and binding to Asp-X. Can be determined by measuring the fluorescence derived from the fluorescent substance meminomethylcoumarin released as a result of the cleavage. Therefore, the caspase-8 activity referred to in the present invention may mean the Asp-X binding specific substrate cleavage activity of caspase-8.
[0010]
The present inventor examined the caspase-8 activity inhibitory activity of various crude drugs using the above-mentioned substrate in order to screen for a crude drug that inhibits the cleaving property of caspase-8. Specifically, recombinant caspase-8 and various sample crude drugs were added to a buffer containing Ac-IETD-MCA and incubated to carry out an enzymatic reaction, and the fluorescence intensity of the released aminomethylcoumarin was similarly measured without adding the sample crude drug. The caspase-8 activity inhibitory effect of each crude drug was examined by comparing with the value of a control subjected to an enzyme reaction under the conditions.
[0011]
Recombinant caspase-8 is described, for example, in Koeplinger et al. It can be prepared according to the description of Protein expression and Purification 18, 378-387, 2000, and specifically, as follows.
Since caspase-8 is expressed in any cell, RNA can be obtained from an appropriate cultured cell using, for example, Isogen and the cDNA of the gene can be obtained by RT-PCR. Usually, it can be produced as a recombinant protein having six histidine residues bound (His-tag). For this, a plasmid vector called pQE30 (QIAGEN) is used. The cDNA is amplified using a linker primer to which an appropriate restriction enzyme site has been added, and is integrated into a certainty vector. This is transformed into E. coli (for example, JM109 or BL21) and cultured overnight in LB medium. The target protein is synthesized by adding IPTG, and after culturing for a while, Escherichia coli is dissolved, and the supernatant is applied to a Nikel column. After washing well, a recombinant caspase-8 with His-tag attached thereto can be purified by flowing a buffer containing about 250 mM imidazole through the column.
[0012]
In order to obtain the herbal extract according to the present invention, which can effectively inhibit the activity of caspase-8, the extracted plant material is preferably dried, and may be fragmented or crushed as necessary. As the extractant, water, an organic liquid, a mixed solvent of a water-miscible organic solvent and water, and the like can be used, and a mixed solution of a water-miscible organic solvent and water is particularly preferable. Examples of the organic solvent include ethanol and methanol. An aqueous ethanol solution is preferred, and a 70% aqueous ethanol solution is particularly preferred. As the extraction concentration, a temperature from room temperature to the boiling point of the extractant can be used, and 20 ° C to 37 ° C is particularly preferable. The extraction may be performed for 3 hours to 7 days.
[0013]
The extract can be dried by removing the solvent according to a conventional method such as evaporation under reduced pressure, and a non-toxic solvent such as water or an aqueous ethanol solution as the extraction solvent, or the extract as it is, or It can be used after being appropriately concentrated.
[0014]
The composition for inhibiting caspase-8 activity according to the present invention can be used for various purposes for suppressing the activity of caspase-8. For example, the inhibitory composition according to the present invention is a pharmaceutical preparation for treating or preventing a neurological disease involving the presence of caspase-8, for example, a cerebral neurological disease such as cerebral infarction, a degenerative disease such as Alzheimer's disease or Huntington's disease, or UVB irradiation. It can be used as a pharmaceutical preparation or a cosmetic preparation for treating or preventing skin aging due to skin cell death caused by the above.
[0015]
The above pharmaceutical preparation or cosmetic preparation is usually used by incorporating the above crude drug extract into an aqueous solvent such as water or ethanol. The blending amount of the crude drug extract according to the present invention is not particularly limited. As the above aqueous solvent, a lower alcohol is preferable, and the content of the lower alcohol is 20 to 80% by weight, more preferably 40 to 60% by weight, in the pharmaceutical preparation or the cosmetic preparation.
[0016]
In addition, the above-mentioned pharmaceutical preparation or cosmetic preparation contains, in addition to the above-mentioned essential components, components usually used in external preparations for skin such as cosmetics and pharmaceuticals, for example, other whitening agents, moisturizing agents, antioxidants, oily components, and ultraviolet absorption. Agents, surfactants, thickeners, alcohols, powder components, coloring agents, aqueous components, water, various skin nutritional agents, and the like can be appropriately compounded as necessary.
[0017]
In addition, sequestering agents such as disodium edetate, trisodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid, caffeine, tannin, verapamil, tranexamic acid and derivatives according to the use of the drug , Licorice extract, glabridine, hot water extract of karin fruit, various crude drugs, drugs such as tocopherol acetate, glycyrrhizic acid and derivatives or salts thereof, vitamin C, magnesium ascorbate phosphate, glucoside ascorbate, arbutin, koji Other whitening agents such as acids, sugars such as glucose, fructose, mannose, sucrose and trehalose, vitamin A's such as retinoic acid, retinol, retinol acetate, retinol palmitate, and the like can also be appropriately compounded.
[0018]
The above pharmaceutical preparations or cosmetic preparations may be used in accordance with their uses, for example, cosmetics, pharmaceuticals, external preparations such as quasi-drugs, for example, lotions, creams, emulsions, lotions, packs, bath preparations, ointments, hair lotions, and hair. Tonics, hair liquids, shampoos, rinses, hair tonics / hair restorers, etc., may be used as long as they are conventionally used for skin external preparations, and the dosage form is not particularly limited.
[0019]
The following provides non-limiting examples of the present invention.
[0020]
【Example】
Screening method for caspase-8 activity inhibitor Caspase-8 activity was measured using a synthetic fluorescent substrate acetyl-Ile-Glu-Thr-Asp-methylcoumarinamide (Ac-IETD-MCA). Was. 10 μl of 10 mM Ac-IETD-MCA, 1 μl of 100 mM dithiothreitol, 5 μl of 1 M Tris-HCl (pH 7.5), 4 μl of recombinant caspase-8 and 5 μl (50 μg) of a sample crude drug in a buffer containing 75 μl of distilled water In addition, it was incubated at 37 ° C. for 30 minutes.
[0021]
The reaction was stopped by adding 2 ml of 0.1 M chloroacetic acid, and the fluorescence intensity of the released meminomethylcoumarin at 460 nm (excitation wavelength: 380 nm) was measured with a fluorometer. The caspase-8 inhibitory activity of the sample is shown as a value relative to the solvent control.
[0022]
As a result, the following crude drug extracts significantly inhibited the activity of caspase-8:
Figure 2004307456
[0023]
【The invention's effect】
The above crude drug-containing composition can inhibit the specific cleaving activity of caspase-8. Therefore, the crude drug-containing composition is a pharmaceutical preparation for treating or preventing a neurological disease associated with the presence of caspase-8, for example, a cerebral nerve disease such as cerebral infarction, a degenerative disease such as Alzheimer's disease or Huntington's disease, or a UVB irradiation. It can be used as a pharmaceutical or cosmetic preparation for treating or preventing skin aging due to skin cell death as a cause.

Claims (1)

ツバキ科チャノキ葉(Thea sinensis L.(Theaceae))エキス、バラ科トルメンチラ(Potentilla tormentilla Neck.)エキス、ツバキ科コウチャ(Thea sinensis L.)エキス、ツバキ科アッサムチャ(Thea sinensis L. var. assamica Pierre)エキス、シナノキ科ボダイジュ(Tilia cordata Miller(和名:フエボダイジュ)エキス、ブドウ科ブドウ葉(Vitis vinifera L.)エキス、ユーカリ(Eucalyptus globulus Labillardiere)エキス、ムラサキ科コンフリー(Symphytum officinale L.(和名:ヒレハリソウ))エキス、ユリアニア科クアチャララーテ(Juliania adstringens)エキス、ダテ科(Rumex salicifolius Weinm)地上部エキス、ツツジ科(Arctostaphylos patula Greene)葉エキス、オトギリソウ科(Calophyllum brasiliensis Cambess)樹皮エキス、シナノキ科(Grewia salutaris Span)幹エキス、クスノキ科(Persea americana Mill)樹皮エキス、カンラン科(Boswellia serrata)樹皮エキス、ハイノキ科(Symplocos racemosa)樹皮エキス、クワ科(Ficus religiosa)樹皮エキス及びノウゼンカズラ科(Stereospermum suaveolens)樹皮エキス、から成る群から選ばれる1又は複数の生薬エキスをカスパーゼ−8活性阻害成分として含んで成る、カスパーゼ−8阻害組成物。Camellia family tea tree leaf (Thea sinensis L. (Theaceae)) extract, Rosaceae tormentilla (Potentilla tormentilla Neck.) Extract, Camellia family koucha (Thea sinsense L.a.a.a.a.a.a.a.a.si asa.a.a.a.a.si asa.assa Asain Asacia Assicha Assicha Assicha Assicha Asacha Assicha Asacha Asacia Assicha Asacha Assicha Asacha Assicha Asacha Assicha L.) ) Extract, Tilia cordata Miller (Japanese name: Fuebodaiju) extract, Grapevine grape leaf (Vitis vinifera L.) extract, Eucalyptus (Eucalyptus globulus Labilladiere), Murashiki phylla sylphium filum sylphium filum sylphium filum symphony phylla stomach Name: finlock) extract, yu Aniaceae kualacharate (Juliania adstrens) extract, Rumex salicifolius Weinm above-ground extract, azalea extract (Arctostaphylos patula Greene) leaf extract, Hypericum sylvestrisae (Calophyllum sushi) Barnacle extract (Persea americana Mill) bark extract, citrus family (Boswellia serrata) bark extract, alderaceae (Symplocos racemosa) bark extract, mulberry family (Ficus religiosa) bark extract, and swelling sparrow caspase-8 inhibitor composition comprising one or more crude drug extracts selected from the group consisting of:
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100035816A1 (en) * 2004-04-30 2010-02-11 Laboratoires Expanscience Medicament comprising a peptide extract of avocado, which is intended for the treatment and prevention of illnesses that are linked to an immune system deficiency or oxidative stress or skin ageing or dry skin
US20110038965A1 (en) * 2006-11-15 2011-02-17 Arthritis Relief Plus Ltd. Topical formulation and uses thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100035816A1 (en) * 2004-04-30 2010-02-11 Laboratoires Expanscience Medicament comprising a peptide extract of avocado, which is intended for the treatment and prevention of illnesses that are linked to an immune system deficiency or oxidative stress or skin ageing or dry skin
US9089576B2 (en) * 2004-04-30 2015-07-28 Laboratoires Expanscience Medicament comprising a peptide extract of avocado, which is intended for the treatment and prevention of illnesses that are linked to an immune system deficiency or oxidative stress or skin ageing or dry skin
US20110038965A1 (en) * 2006-11-15 2011-02-17 Arthritis Relief Plus Ltd. Topical formulation and uses thereof
US10322155B2 (en) * 2006-11-15 2019-06-18 Arthritis Relief Plus Ltd. Topical formulation and uses thereof
US11844820B2 (en) 2006-11-15 2023-12-19 Arthritis Relief Plus Ltd. Topical formulation and uses thereof

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