JP7477152B2 - Htlv-1関連疾患の発症予防、進展抑制または治療のための剤 - Google Patents
Htlv-1関連疾患の発症予防、進展抑制または治療のための剤 Download PDFInfo
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- JP7477152B2 JP7477152B2 JP2020083940A JP2020083940A JP7477152B2 JP 7477152 B2 JP7477152 B2 JP 7477152B2 JP 2020083940 A JP2020083940 A JP 2020083940A JP 2020083940 A JP2020083940 A JP 2020083940A JP 7477152 B2 JP7477152 B2 JP 7477152B2
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Description
そこで、本発明は、従来公知のHTLV-1関連疾患の治療薬の代替となり、かつ安全で安価なHTLV-1関連疾患の発症予防、進展抑制または治療のための剤を提供することを目的とする。
本発明は、下記式1で表される化合物およびその薬学的に許容される塩を有効成分として含む。
上述のように、HTLV-1関連疾患であるATLLの治療において、モガムリズマブなどの分子標的薬が知られている。しかし、モガムリズマブや既存の抗がん剤は副作用が強く、適用患者も制限される。
以下の例で用いられる細胞株のうち、KK1、KOB、ST1、HCT1、HCT4、およびHCT5は、長崎大学より譲渡されたものであり、Su9T1とS1Tは、鹿児島大学より譲渡されたものであり、MT2は、大分大学より譲渡されたものであり、MT1は、高知大学より譲渡されたものであり、MOLT4は、株式会社林原より購入した。
前培養した細胞をPBS(-)緩衝液で洗浄した後、1×105cells/mLに調整し50μLずつ平底96-Well plateに添加した(n=3)。400μMのクロロキン(CQ)(クロロキン二リン酸塩、Tocris社製)またはヒドロキシクロロキン(HCQ)(ヒドロキシクロロキン硫酸塩、プラニケル(登録商標)、サノフィ株式会社製)を含む培養液(RPMI-1640培地またはAIM-V培地)を用意し、5段階の希釈系列(2、10、20、100または200μM)を作製した(薬剤を含まない培養液も用意した)。細胞を分注したwellに薬剤を含む培養液を50μLずつ添加し(最終濃度:1、5、10、50、100または200μM)、薬剤を含まない培養液を50μLずつ添加した。また、培養液を100μLずつ分注したwellを用意した。CO2インキュベーター中で37℃、5%CO2の条件で48時間培養した。培養後それぞれのwellにCell Counting Kit-8溶液(株式会社同仁化学研究所製)を10μLずつ添加し、CO2インキュベーター内で2時間または6時間(ヒトPBMCに対して)呈色反応を行い、マイクロプレートリーダーで450nmの吸光度を測定した。薬剤を含まないwellの吸光度を細胞増殖率100%としてそれぞれの薬剤濃度での細胞増殖率(%)を算出した。
前培養した細胞をPBS(-)緩衝液で洗浄した後、1×106cells/mLに調整し1mLずつ6-Well plateに添加した。200μMのクロロキンを含む培養液を用意した(薬剤を含まない培養液も用意した)。細胞を分注したwellに薬剤を含む培養液を1mLずつ添加し(最終濃度:100μM)、薬剤を含まない培養液を1mLずつ添加した。CO2インキュベーター中で37℃、5%CO2の条件で24時間培養した。
ウエスタンブロット法を用いて、クロロキンで処理したATLL細胞株(KK1およびS1T)におけるCleaved Caspase-3の発現の経時的な変化を調べた。Actinをローディングコントロールとして使用した。
ウエスタンブロット法を用いて、クロロキンで処理したATLL細胞株(KK1およびS1T)におけるCADM1、p47、NEMO、p-IκBα、IκBα、LC3-IおよびLC3-IIの発現の経時的な変化を調べた。Actinをローディングコントロールとして使用した。
以下の実験は、「宮崎大学動物実験規則」に基づき、宮崎大学動物実験委員会の承認のもと実施された(承認番号:2017-503)。
Claims (5)
- 下記式1で表される化合物またはその薬学的に許容される塩を有効成分として含む、成人T細胞白血病・リンパ腫(ATLL)または熱帯性痙性対麻痺/HTLV-1関連脊髄症(HAM/TSP)の発症予防、進展抑制または治療のための剤:
式1中、R1は、メチル基またはヒドロキシメチル基である。 - 前記式1で表される化合物またはその薬学的に許容される塩がヒドロキシクロロキン硫酸塩およびクロロキン二リン酸塩からなる群から選択される、請求項1に記載の剤。
- 下記式1で表される化合物またはその薬学的に許容される塩を有効成分として含む、HTLV-1感染細胞の増殖抑制剤:
式1中、R1は、メチル基またはヒドロキシメチル基である。 - 下記式1で表される化合物またはその薬学的に許容される塩を有効成分として含む、HTLV-1感染細胞のNF-κB阻害剤:
式1中、R1は、メチル基またはヒドロキシメチル基である。 - 下記式1で表される化合物またはその薬学的に許容される塩を有効成分として含む、HTLV-1感染細胞のアポトーシス誘導剤:
式1中、R 1 は、メチル基またはヒドロキシメチル基である。
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JP2013529627A (ja) | 2010-06-24 | 2013-07-22 | パンメド リミテッド | ヒドロキシクロロキンまたはヒドロキシクロロキンおよび抗ウイルス剤の組合せを使用するc型肝炎ウイルス関連疾患の処置 |
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