JPWO2020022518A1 - 筋萎縮性側索硬化症を含む神経疾患の予防剤及び/又は治療剤 - Google Patents
筋萎縮性側索硬化症を含む神経疾患の予防剤及び/又は治療剤 Download PDFInfo
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Abstract
Description
〔1〕 Necdinを有効成分とする、筋萎縮性側索硬化症を含む神経疾患の予防剤及び/又は治療剤。
〔2〕 Necdinもしくはその変異体、又は、それらの誘導体もしくは修飾体を含む、前記〔1〕記載の予防剤及び/又は治療剤。
〔3〕 Necdinをコードするポリヌクレオチドを含有する、前記〔1〕記載の予防剤及び/又は治療剤。
〔4〕 Necdinをコードするポリヌクレオチドを含有するベクターを含有する、前記〔3〕記載の予防剤及び/又は治療剤。
〔5〕 アデノ随伴ウイルスベクターである、前記〔4〕記載の予防剤及び/又は治療剤。
〔6〕 血清型1、血清型8又は血清型9のアデノ随伴ウイルスベクターである、前記〔5〕記載の予防剤及び/又は治療剤。
〔7〕 神経疾患が、筋萎縮性側索硬化症(ALS:amyotrophic lateral sclerosis)である、前記〔1〕〜〔6〕いずれか記載の予防剤及び/又は治療剤。
〔8〕 前記〔1〕〜〔7〕いずれか記載の予防剤及び/又は治療剤を含有してなる医薬組成物。
(a)NecdinをALSを含む神経疾患の患者に投与する工程を含む、ALSを含む神経疾患の治療方法。
(b)ALSを含む神経疾患の予防及び/又は治療するための、Necdinの使用。
(c)ALSを含む神経疾患の予防剤及び/又は治療剤を製造するための、Necdinの使用。
コントロールプラスミド、野生型SOD1発現プラスミド又はG93A変異型SOD1発現プラスミドをそれぞれ、運動神経様細胞株NSC34細胞に、GFPあるいはNecdin発現プラスミドと併せてトランスフェクトした。72時間後に、25μM H2O2で1時間処理し、WSTアッセイにより細胞生存率を解析した。結果を図1に示す。
ALSモデルマウス(オス、4週齢、Jackson Laboratoryより提供)に、マウス1匹あたりeGFP発現アデノ随伴ウイルス(No.1、血清型9野生型)を1×1011vg(viral genomes)量で左大腿四頭筋に筋肉内注射し、2週間後に脊髄を摘出して、蛍光免疫染色によりeGFP発現を観察した。結果を図2に示す。
ALSモデルマウス(生後1日齢、Jackson Laboratoryより提供)に、マウス1匹あたりeGFP発現アデノ随伴ウイルス(No.1:血清型9野生型)もしくはNecdin発現アデノ随伴ウイルス(No.1:血清型9野生型、及び、No.2:血清型9変異型Y731F)をそれぞれ5×1011vg量で側頭静脈内に投与し、8週間後に大脳と脊髄を摘出して、蛍光免疫染色によりeGFPもしくはNecdin発現を観察した。Necdin発現アデノ随伴ウイルスについては、2種類のウイルスを調製して用いた。大脳及び脊髄でのeGFP発現の結果を図3に、脊髄でのNecdin発現の結果を図4に示す。
実施例3と同様のマウスを準備し、該マウス1匹当たりにNecdin発現アデノ随伴ウイルス(No.2:血清型9変異型Y731F)を5×1011vg量で側頭静脈内に投与し、飼育ケージ蓋に逆さまにぶら下がっていられる秒数(Hanging time:ぶら下がり時間)、ロータロッド試験でローターから落下するまでの秒数(Latency to fall:落下するまでの時間)を計測し、運動機能障害の発症及び進行を評価した。結果を図5、6に示す。なお、参考のために、野生型マウス(WT)の結果も各図に併せて示す。
実施例3と同様のマウスを準備し、該マウス1匹当たりにNecdin発現アデノ随伴ウイルス(No.2:血清型9変異型Y731F)を5×1011vg量で側頭静脈内に投与し、Kaplan-Meier曲線による生存期間を調べた。結果を図7に示す。
実施例2と同様のマウスを準備し、該マウス1匹当たりにNecdin発現アデノ随伴ウイルス(No.2:血清型9変異型Y731F、及び、No.3:AAV-DJ/8)をそれぞれ5×1011vg量で左大腿四頭筋に筋肉内投与し、ロータロッド試験でローターから落下するまでの秒数(Latency to fall:落下するまでの時間)を計測し、運動機能障害の発症及び進行を評価した。結果を図8に示す。
Claims (8)
- Necdinを有効成分とする、筋萎縮性側索硬化症を含む神経疾患の予防剤及び/又は治療剤。
- Necdinもしくはその変異体、又は、それらの誘導体もしくは修飾体を含む、請求項1記載の予防剤及び/又は治療剤。
- Necdinをコードするポリヌクレオチドを含有する、請求項1記載の予防剤及び/又は治療剤。
- Necdinをコードするポリヌクレオチドを含有するベクターを含有する、請求項3記載の予防剤及び/又は治療剤。
- アデノ随伴ウイルスベクターである、請求項4記載の予防剤及び/又は治療剤。
- 血清型1、血清型8又は血清型9のアデノ随伴ウイルスベクターである、請求項5記載の予防剤及び/又は治療剤。
- 神経疾患が、筋萎縮性側索硬化症(ALS:amyotrophic lateral sclerosis)である、請求項1〜6いずれか記載の予防剤及び/又は治療剤。
- 請求項1〜7いずれか記載の予防剤及び/又は治療剤を含有してなる医薬組成物。
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