JP2021522283A - 分子ピンセットによるリポフスチンの凝集の阻害 - Google Patents
分子ピンセットによるリポフスチンの凝集の阻害 Download PDFInfo
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Abstract
Description
本出願は、2018年4月27日に出願されたUSSN62/663,948の優先権及び利益を主張し、これはすべての目的のためにその全体が参照により本明細書に組み込まれる。
本発明は、国立衛生研究所(National Institutes of Health)によって授与された許可番号AG050721の下で政府の支援を受けてなされた。政府は、本発明において所定の権利を有する。
のいずれか1つに記載の分子ピンセットである、実施形態1〜20のいずれか1つに記載の方法。
のいずれか1つに記載の分子ピンセットである、実施形態44〜64のいずれか1つに記載の分子ピンセット。
分子ピンセットは、ゲスト分子を結合させることが可能な開口キャビティを有するホスト分子である(例えば、Hardouin−Lerouge et al.(2011)Chem.Soc.Rev.40:30−43を参照されたい)。分子ピンセットの開口キャビティは、水素結合、金属配位、疎水性力、ファンデルワールス力、π−π相互作用、及び/または静電作用のうちの1つ以上を含み得る非共有結合を使用してゲストを結合させ得る。これらの複合体は、大環状分子受容体のサブセットとみなすことができ、それらの典型的な構造は、それらの間にゲスト分子を結合させ、かつ一端でのみ接続されてこれらの分子の所定の柔軟性をもたらす2つの「腕部」を特徴とする(誘導フィットモデル)。
様々な実施形態では、本明細書に記載の方法において有用な分子ピンセット(複数可)は、1つ以上のタンパク質の凝集を阻害及び/または調節すること、及び/またはタンパク質線維または他のタンパク質凝集体の解離を促進すること、またはその両方が可能であり得る。所定の実施形態では、分子ピンセットは、リポフスチンの凝集を阻害及び/または調節すること、及び/またはリポフスチン線維または他のリポフスチン凝集体の解離を促進すること、またはその両方が可能である。
のいずれか1つに記載の分子ピンセットであり得る。
分子ピンセットは、当業者に知られている多数の方法のいずれかに従って合成され得る(例えば、Zimmerman et al.(1991)J.Am.Chem.Soc.113:183−196を参照れたい)。分子ピンセットTW1(すなわち、CLR01)、TW2、及びTW3の合成は、以下に記載されている(PCT出願第PCT/US2010/026419号も参照されたい)。
いくつかの例では、裸の、すなわち、本来の形態の分子ピンセットの送達は、細胞内の標的タンパク質(例えば、リポフスチン)の凝集を阻害するのに十分であり得る。様々な実施形態では、分子ピンセットは、塩、エステル、アミド、クラスレート、または誘導体が薬理学的に有効である(例えば、タンパク質の凝集を阻害する、例えば、所定の実施形態では、α−シヌクレイン、Aβ、及び/またはタウのうちの1つ以上の凝集を阻害することが可能である)限り、塩、エステル、アミド、クラスレート、誘導体などの形態で投与され得る。所定の実施形態では、本明細書に記載の分子ピンセットのプロドラッグまたは他の付加物もしくは誘導体が企図される。そのようなプロドラッグ(複数可)は、それを必要とする対象に投与すると、直接的にまたは間接的に分子ピンセットを提供することが可能である。
様々な実施形態では、分子ピンセットは、リポフスチン関連障害の治療または予防のために対象(例えば、それを必要とする哺乳動物)に投与される。所定の実施形態では、リポフスチン関連障害は、リポフスチン関連障害である眼疾患を含む。所定の実施形態では、リポフスチン関連障害は、リポフスチン症を含む。
加齢に伴って生じる網膜内の自発蛍光色素リポフスチンの蓄積は、視覚サイクルの副作用として説明されてきた。それは、2分子のオールトランスレチナールが1分子のホスファチジルエタノールアミンと桿状体外節の円板内で縮合する場合に生じ、続いて網膜色素上皮(RPE)内に取り込まれ、RPE細胞に対して毒性であるピリジニウムビスレチノイドである安定なA2Eに変換する。リポフスチンの主成分であるA2Eの蓄積は、RPE細胞のアポトーシスを引き起こし、それによって加齢黄斑変性が説明される。
卵黄様黄斑変性(卵黄様黄斑ジストロフィーとしても知られている)は、進行性の視力喪失を引き起こし得る遺伝性眼障害である。この障害は網膜に影響を及ぼし得る。具体的には、卵黄様黄斑ジストロフィーは、黄斑と呼ばれる網膜の中心に近い小さな領域における細胞を破壊する。リポフスチンは、黄斑の下にある細胞内で構築する。経時的に、この物質の異常な蓄積は、明瞭な中央視力にとって重要な細胞を損傷させ得る。結果として、この障害を有する人々はしばしば、中央の視力を喪失し、視野は不鮮明になり得るか、または歪み得る。卵黄様黄斑ジストロフィーは典型的には、側方(周辺部)視力または夜間に視認する能力に影響を及ぼさない。
スターガルト病は、最も一般的な遺伝性網膜疾患である。それは通常、ABCA4遺伝子における変異によって引き起こされる常染色体潜性遺伝を有する。まれにそれは、ELOVL4またはPROM1遺伝子の欠陥のため、常染色体顕性遺伝を有する。スターガルト病のすべての形態は、小児期、思春期または成人期に始まり、その結果、視力が進行的に喪失するリポフスチンの蓄積の結果としての黄斑変性を特徴とする。
所定の実施形態では、本明細書に記載の分子ピンセットは、ニューロンセロイドリポフスチン症の治療及び/または予防において使用される。ニューロンセロイドリポフスチン症の例示的であるが、非限定的な例には、乳児期NCL(サンタブオリ−ハルチア病)、後期乳児期NCL(ジャンスキー−ビールショウスキー病、若年期NCL(CLN1、バッテン病)、成人NCL(クフス病)、フィンランド後期乳児期NCL、バリアント後期乳児期NCL、CLN7 NCL、CLN8 NCL(北部てんかん、すなわち、精神遅滞を有する進行性てんかん(EPMR))、トルコ後期乳児期バリアントNCL、及びCLN10 NCL(先天性、カテプシンD欠損症)が含まれるがこれらに限定されない。
様々な実施形態では、本明細書に記載の方法の実践のための物質を含有するキットが提供される。所定の実施形態では、キットは、本明細書に記載の1つ以上の分子ピンセットを含有する容器及び/または本明細書に記載の1つ以上の分子ピンセットを含む薬学的製剤を含む。所定の実施形態では、キットは、分子ピンセットを投与するための装置(例えば、事前に装填されたシリンジ)を含有し得る。
分子ピンセットによるリポフスチンの凝集の阻害
リポフスチンの凝集に対するCLR01の効果を試験するために、ヒト、ARPE−19細胞(網膜色素上皮;RPE)を以下のようにCLR01の非存在下または存在下でリポフスチン(A2E)で処置し、6時間のインキュベートの最後に蛍光顕微鏡によって画像化した(図1、パネルA):
Claims (21)
- 哺乳動物におけるリポフスチン関連障害を治療する方法であって、前記方法は、
タンパク質の凝集を阻害することが可能な有効量の分子ピンセットを前記哺乳動物に投与することを含む、前記方法。 - 前記分子ピンセットは、リポフスチンの凝集を阻害することが可能であり、前記有効量は、前記リポフスチン関連障害に関連するリポフスチンの蓄積/凝集の発症を遅らせるのに、またはそのリポフスチン蓄積/凝集の進行を遅延させるのに、またはそのリポフスチン蓄積/凝集を停止させ、もしくは逆行させるのに有効な量である、請求項1に記載の方法。
- 前記リポフスチン関連障害は、眼疾患に関連するリポフスチン関連障害、ニューロンセロイドリポフスチン症(例えば、バッテン病)、末端肥大症、筋萎縮性側索硬化症、脱神経萎縮、脂質ミオパシー、慢性閉塞性肺疾患、中心核ミオパシー、及び大腸メラノーシスからなる群から選択される、請求項1〜2のいずれか1項に記載の方法。
- 前記リポフスチン関連障害は、眼疾患に関連するリポフスチン関連障害であり、前記眼疾患は、加齢黄斑変性、スターガルト病、卵黄様黄斑変性(ベスト黄斑ジストロフィー)、脈絡膜メラノーマに関連する網膜色素上皮症、及び重度眼外傷からなる群から選択される疾患を含む、請求項1〜3のいずれか1項に記載の方法。
- 前記眼疾患は、黄斑変性を特徴とする、請求項3に記載の方法。
- 前記リポフスチン関連障害は、ニューロンセロイドリポフスチン症であり、例えば、前記リポフスチン関連障害は、乳児期NCL(サンタブオリ−ハルチア病)、後期乳児期NCL(ジャンスキー−ビールショウスキー病、若年期NCL(CLN1、バッテン病)、成人NCL(クフス病)、フィンランド後期乳児期NCL、バリアント後期乳児期NCL、CLN7 NCL、CLN8 NCL(北部てんかん、すなわち、精神遅滞を有する進行性てんかん(EPMR))、トルコ後期乳児期バリアントNCL、バッテン病、及びCLN10 NCL(先天性、カテプシンD欠損症)からなる群から選択されるリポフスチン症を含み、好ましくは前記ニューロンセロイドリポフスチン症は、バッテン病である、請求項1〜3のいずれか1項に記載の方法。
- 前記分子ピンセットは、式I〜IV:
X1及びX2は、両方ともOであり、
A単独、またはX1と組み合されたAは、ホスフェート、リン酸水素、アルキルホスホネート、アリールホスホネート、アルキルホスファミド、アリールホスファミド、スルフェート、水素スルフェート、アルキルカルボキシレート、及び
B単独、またはX2と組み合されたBは、ホスフェート、リン酸水素、アルキルホスホネート、アリールホスホネート、アルキルホスファミド、アリールホスファミド、スルフェート、水素スルフェート、アルキルカルボキシレート及び
R1、R2、R3、及びR4の各々は、独立して、H、Cl、Br、I、OR、NR2、NO2、CO2H、及びCO2R5(式中、R5は、アルキル、アリールまたはHである)からなる群から選択され、または
R1及びR2は、組み合わさって脂肪族または芳香族環を形成し、及び/または
R3及びR4は、組み合わさって脂肪族または芳香族環を形成する)
のいずれか1つに記載の分子ピンセットである、請求項1〜6のいずれか1項に記載の方法。 - リポフスチンの凝集を阻害するのに使用するための分子ピンセットであって、前記リポフスチンの凝集を阻害することは、リポフスチンの凝集の発症を遅らせること、またはリポフスチンの凝集の進行を遅延させること、またはリポフスチンの凝集を停止させること、もしくは逆行させることを含む、前記分子ピンセット。
- 前記リポフスチンの凝集を阻害することは、哺乳動物におけるリポフスチン関連障害の治療においてタンパク質の凝集を阻害することを含む、請求項11に記載の分子ピンセット。
- 前記分子ピンセットは、リポフスチンの凝集を阻害することが可能であり、前記治療は、前記リポフスチン関連障害に関連するリポフスチンの凝集/蓄積の発症を遅らせるのに、またはそのリポフスチン凝集/蓄積の進行を遅延させるのに、またはそのリポフスチン凝集/蓄積を停止させ、もしくは逆行させるのに有効である、請求項11〜12のいずれか1項に記載の分子ピンセット。
- 前記リポフスチン関連障害は、眼疾患に関連するリポフスチン関連障害、ニューロンセロイドリポフスチン症(例えば、バッテン病)、末端肥大症、筋萎縮性側索硬化症、脱神経萎縮、脂質ミオパシー、慢性閉塞性肺疾患、中心核ミオパシー、及び大腸メラノーシスからなる群から選択される、請求項12〜13のいずれか1項に記載の分子ピンセット。
- 前記リポフスチン関連障害は、眼疾患に関連するリポフスチン関連障害であり、前記眼疾患は、加齢黄斑変性、卵黄様黄斑変性(ベスト黄斑ジストロフィー)、脈絡膜メラノーマに関連する網膜色素上皮症、及び重度眼外傷からなる群から選択される疾患を含む、請求項12〜14のいずれか1項に記載の分子ピンセット。
- 前記リポフスチン関連障害は、黄斑変性を特徴とする、請求項15に記載の分子ピンセット。
- 前記リポフスチン関連障害は、ニューロンセロイドリポフスチン症であり、前記リポフスチン関連障害は、乳児期NCL(サンタブオリ−ハルチア病)、後期乳児期NCL(ジャンスキー−ビールショウスキー病、若年期NCL(CLN1、バッテン病)、成人NCL(クフス病)、フィンランド後期乳児期NCL、バリアント後期乳児期NCL、CLN7 NCL、CLN8 NCL(北部てんかん、すなわち、精神遅滞を有する進行性てんかん(EPMR))、トルコ後期乳児期バリアントNCL、バッテン病、及びCLN10 NCL(先天性、カテプシンD欠損症)からなる群から選択されるリポフスチン症を含む、請求項12〜14のいずれか1項に記載の分子ピンセット。
- 前記分子ピンセットは、式I〜IV:
X1及びX2は、両方ともOであり、
A単独、またはX1と組み合されたAは、ホスフェート、水素ホスフェート、アルキルホスホネート、アリールホスホネート、アルキルホスファミド、アリールホスファミド、スルフェート、水素スルフェート、アルキルカルボキシレート、及び
B単独、またはX2と組み合されたBは、ホスフェート、水素ホスフェート、アルキルホスホネート、アリールホスホネート、アルキルホスファミド、アリールホスファミド、スルフェート、水素スルフェート、アルキルカルボキシレート及び
R1、R2、R3、及びR4の各々は、独立して、H、Cl、Br、I、OR、NR2、NO2、CO2H、及びCO2R5(式中、R5は、アルキル、アリールまたはHである)からなる群から選択され、または
R1及びR2は、組み合わさって脂肪族または芳香族環を形成し、及び/または
R3及びR4は、組み合わさって脂肪族または芳香族環を形成する)
のいずれか1つに記載の分子ピンセットである、請求項12〜17のいずれか1項に記載の分子ピンセット。
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