JP2019099562A - 細胞内でのテロメア長の増加 - Google Patents
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Abstract
Description
キニン酸は寿命を変える化合物の例として開示されている。本発明の方法は、具体的に、細胞、組織又は生物をキニン酸または類縁体もしくはその誘導体と接触させることを対象とする。キニン酸はコーヒーチェリー中に自然に見つかるものとして開示されている。この開示はテロメアを長くすること、のみならずテロメア長維持遺伝子の少なくとも1つの活性もしくは水準を調節すること、を意図している。この文献は、如何なる目的に対してもキヤッツクローの水抽出物を用いることを意図していない。カギカズラ属の種については何も言及されていない。この文献は、生きている細胞中のテロメアの長さを調節するとしてキニン酸を具体的に指摘していない。生物中のキニン酸あるいはテロメアを長くすることに関する実施例はない。テロメア長維持を対象とする実施例が提供されているが、これらは、緑茶抽出物、コーヒーチェリー抽出物およびイデベノンの効果を試験する、試験管内実験(培地中細胞)である。
AC−11(登録商標)ヒト、予備的研究:老年人口におけるテロメア長に与えるAC−11(登録商標)の影響
平均的な人テロメアは成人では毎年短くなる。この事実は、各図に太い線に反映されている。11名のヒトボランティアの予備的試験では、AC−11(登録商標)で処置する前と処置後において、1年の時点と2年の時点でテロメア長が測定された。処置は、カプセルに処方されたキヤッツクローの水性抽出物の経口投与、1日投与量700mgで、行われた。抽出物は8−10%CAEs(w/w)を含有していた。全11人の主体のテロメアは、長さが増加しており、あるときには驚異的であった。図1〜11は、実際のテロメア長(キロベース)と、明瞭な視覚的説明のために各主体のパーセンタイル値が示されている。これらの結果は驚くべきことであり予測し難いことであった。例外は、医者の要請により、それぞれ4、5ヶ月間、AC−11(登録商標)の使用を中止された2名の主体(RCとMM)であった(図5と図9)。彼らのだけが短くなったテロメアであった。研究の期間中、それぞれの年令において、仮に処置しなかったとすると、彼らのテロメア長は2〜5%喪失したというのが普通である、ことには注目すべきである。
毒性試験
経口AC−11(登録商標)が8週間40、80又は160mg/kg/日の投与量でラットに投与されたが、飼料消費量又は体重増に意味ある変化は何もなかった。8g/kgまでの単一経口投与は、死亡あるいは急性毒性の徴候をもたらさなかった。このように、ラットにおけるLD50>8g/kgであることが報告されている(シェンら、(2000)J.Ethnopharm.69:115−26)。5〜160mg/kgの経口AC−11(登録商標)を与えられたラットは、肝臓、腎臓および脾臓の重量に意味ある変化を示さなかった。80mg/kgのAC−11(登録商標)やドキソルビシン(doxorubicin)が投与されたラットは、ドキソルビシンのみを投与された動物と比較して、かなり増加した平均心重量係数(4.4%)を示した(0.386%±0.034 vs 0.369%±0.022)ことを、1つの試験が示した。しかしながら、AC−11(登録商標)+ドキソルビシンで処置した動物は未処置のコントロールと比較したとき、平均心重量に意味ある変化は見られなかった。8週間、5−160mg/kg/日のAC−11(登録商標)で処置したラットから得られた組織の病理組織学的試験は病理学的変化の増加を明らかにできなかった。
本発明に用いられる薬剤を下記する。
1.カギカズラ属の種(Uncaria species)の水性抽出物を含有することを特徴とする、主体の細胞中のテロメアの長さを増加させるための薬剤。
2.経口的に、経皮的に、または全身的に投与される上記1に記載の薬剤。
3.カプセル剤、錠剤、液剤、シロップ剤およびゲル剤よりなる群から選ばれる投与手段として処方される上記1または2に記載の薬剤。
4.該主体の細胞中の該テロメアの長さを増加するために薬学的に有効量の水性抽出物を含有する上記1〜3のいずれかに記載の薬剤。
5.該水性抽出物が最低8%重量/重量(w/w)カルボキシアルキルエステル(CAEs)を含有する上記1〜4のいずれかに記載の薬剤。
6.該主体がヒトである上記1に記載の薬剤。
7.該カギカズラ属の種がキヤッツクローである上記1に記載の薬剤。
Claims (20)
- 主体の細胞中のテロメアの長さを増加させる方法であって、
a)1種以上のテロメアの長さを測定し、
b)該主体に対し、カギカズラ属の種(Uncaria species)の水性抽出物を、薬学的に有効な量で且つ該主体の該細胞中で該テロメアの長さが増加するに十分な期間投与し、
c)1種以上のテロメアの長さを再度測定し、そして
d)該方法が該テロメアを長くする、
ことからなる上記方法。 - 該水性抽出物が経口的に投与される請求項1に記載の方法。
- 該水性抽出物の量が約200mg/日〜約700mg/日の範囲にあり、そしてさらに該水性抽出物が最低で8%重量/重量(w/w)カルボキシアルキルエステル(CAEs)を含有する、請求項2に記載の方法。
- 該水性抽出物の量が約700mg/日である請求項3に記載の方法。
- 主体がヒトである請求項4に記載の方法。
- 該水性抽出物がカプセル、錠剤、液剤、シロップ剤およびゲル剤よりなる群から選ばれる投与手段に処方されている請求項1に記載の方法。
- 該水性抽出物が経皮パッチに処方されている請求項1に記載の方法。
- 該水性抽出物がカプセル、錠剤、液剤、シロップ剤およびゲル剤よるなる群から選ばれる投与手段に処方されている請求項2に記載の方法。
- カギカズラ属の種がキヤッツクローである請求項5に記載の方法。
- 該主体がヒトである請求項1に記載の方法。
- 該カギカズラ属の種がキヤッツクローである請求項1に記載の方法。
- 該主体の細胞中で該テロメアの長さを増加させるに十分な該期間が少なくとも6ヶ月である請求項1に記載の方法。
- 該主体の細胞中で該テロメアの長さを増加させるに十分な該期間が少なくとも1年である請求項1に記載の方法。
- 該経皮パッチが該抽出物を該主体に対し長期間に亘って供給する請求項7に記載の方法。
- 主体の細胞中のテロメアの長さを増加させる方法であって、
a)主体から有核細胞の第1サンプルを得、
b)有核細胞の第1サンプル中の第1テロメアの長さを測定し、
c)該主体に対しカギカズラ属の種の水性抽出物の有効量の1日投与量を、該主体の細胞中でテロメアの長さが増加するに十分な期間経口的に投与し、
d)該期間が終了した後該主体から有核細胞の第2サンプルを得、
e)該期間が終了した後の該主体からの有核細胞の該第2サンプル中の第2テロメアの長さを測定し、
f)該期間が開始する前の該第1テロメアの該長さを、該期間が終了した後の該第2テロメアの該長さと比較する、
ことからなる上記方法。 - 該主体の細胞中のテロメアの長さを増加させるに十分な該期間が少なくとも1年である請求項15に記載の方法。
- 該有核細胞が白血細胞である請求項15に記載の方法。
- 該主体がヒトである請求項15に記載の方法。
- 上記測定工程(b)と(e)が定量的ポリメラーゼ連鎖反応で実施される請求項15に記載の方法。
- 上記カギカズラ属の種がキヤッツクローである請求項15に記載の方法。
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KR20200095495A (ko) | 2020-08-10 |
CN109847071A (zh) | 2019-06-07 |
TR201817009A2 (tr) | 2019-06-21 |
IL274795B1 (en) | 2023-08-01 |
US10098922B1 (en) | 2018-10-16 |
IL274795A (en) | 2020-07-30 |
IL274795B2 (en) | 2023-12-01 |
MY194907A (en) | 2022-12-22 |
BR102018074717A2 (pt) | 2019-06-25 |
BR102018074717A8 (pt) | 2023-03-07 |
EP3492093A1 (en) | 2019-06-05 |
CN109847071B (zh) | 2022-07-19 |
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CA3021111A1 (en) | 2019-05-30 |
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