JP2011516501A - 腫瘍疾患の治療 - Google Patents
腫瘍疾患の治療 Download PDFInfo
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- JP2011516501A JP2011516501A JP2011503304A JP2011503304A JP2011516501A JP 2011516501 A JP2011516501 A JP 2011516501A JP 2011503304 A JP2011503304 A JP 2011503304A JP 2011503304 A JP2011503304 A JP 2011503304A JP 2011516501 A JP2011516501 A JP 2011516501A
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Abstract
Description
ACE2遺伝子の高い発現を生じさせるために、増幅可能な選択マーカーDHFRを予め挿入した発現ベクターにヒトACE2配列の可溶性部分をクローニングした。このために、ACE2及びDHFRをコードする遺伝子の間に弱力化したIRESを挿入した。このIRESは同じmRNAでACE2及びDHFRの2シストロン読取りを可能にする。双方のタンパク質を同じプロモーターの制御下で発現させた後、アンタゴニストMTXを使用してDHFRを選択することにより、ACE2発現を高めることができる。この戦略によって、一定な品質の製品の高い収量をもたらす特に安定した発現細胞系を得ることが可能である。これにより、特定の標的タンパク質の組換え発現にはおそらくあまり適さない細胞系においても、妥当な製品力価を得ることが可能となる。
実施例1により調製された二量体ACE2製剤は、生理的緩衝液中で安定した高純度の濃縮タンパク質溶液であり、更に安定化処理をせずに貯蔵し、投与することができる。
Ang II(Asp-Arg-Val-Tyr-Ile-His-Pro-Phe)の変換を測定することによってACE2製剤の特異的活性を決定した。全ての測定は100μlのバッチ容積で三重決定として行った。pH6.5で50mM MES、300mM NaCl、10μM ZnCl2及び0.01% Brij-30中の80μMのAng II溶液に250ng/mlのACE2を加えることによって酵素反応を開始した。試料を入念に混合し、37℃で正確に18分間培養した。100mMのEDTAを加えて酵素反応を停止した。分析のために、溶液を、RP-HPLC(Waters C18μBondapak, 2.1x300mm, 10μm, 125Å)により、0.08% H3PO4中10〜60% CH3CNの直線勾配を使用して1ml/分の流速で20分間分離させた。さらにクロマトグラムでAng II及びAng 1-7の両者のピークを識別し、積分した。検量線に基づきペプチド濃度を決定した。さらに酵素的変換及び特異的酵素活性を決定した。
ヒト腫瘍細胞系を、96ウエル・プレートで10%FCS中200μlのRPMI 1640中に2.5x104個/mlの細胞密度で播種し、37℃及び5%CO2で培養した。下記の試験系を使用して、RASの様々な活性成分の影響を評価した。全ての分析は三重決定として行われた(sACE2=C末端膜ドメインのない可溶性ACE2)。
条件B 100nMのAng IIを補足した培地
条件C 100nMのAng 1-7を補足した培地
条件D 20μg/mlのsACE2を補足した培地
条件E 20μg/mlのsACE2及び100mMのAng IIを補足した培地
毎日100μlの培地を取り出し、同じ体積の新しい特定の培地を補充した。細胞数を第2、3、6、8、10、13、15及び17日に血球計での多重計数により決定した。決定のつど別個に用意した計数盤を使用した。
Claims (12)
- 肺癌を除く腫瘍疾患の治療薬を製造するためのアンギオテンシン変換酵素2(ACE2)活性を有するポリペプチドの使用。
- 腫瘍疾患が生殖器官の腫瘍疾患、特に卵巣癌、睾丸癌、前立腺癌又は乳癌、消化管の腫瘍疾患、特に胃癌、腸癌、直腸癌、膵臓癌、食道癌及び肝臓癌、腎臓癌、黒色腫又は神経芽細胞腫から選ばれるものである、請求項1に記載の使用。
- 腫瘍治療後の続発症(sequelae)又は副作用の治療のため、特に放射線療法、化学療法又は腫瘍手術後の続発症の治療のためにACE2を使用する、請求項1又は2に記載の使用。
- 腫瘍の転移の防止のためにACE2活性を有するポリペプチドを使用する、請求項1〜3のいずれか1項に記載の使用。
- 腫瘍疾患が腫瘍内、腫瘍周辺又は腫瘍患者内の高いアンギオテンシンII濃度を特徴とするものである、請求項1〜4のいずれか1項に記載の使用。
- 腫瘍疾患に関連する悪性腔水症、浮腫又は高い脈管透過性の治療のためにACE2活性を有するポリペプチドを使用する、請求項1〜5のいずれか1項に記載の使用。
- ACE2活性を有するポリペプチドが全身投与可能な形態、好ましくは静脈内投与可能な形態又は鼻腔スプレーの形態、特にリポソーム形態で存在する、請求項1〜6のいずれか1項に記載の使用。
- ACE2活性を有するポリペプチドが局所投与可能な形態、特に腫瘍内、皮下又は皮内形態で存在する、請求項1〜6のいずれか1項に記載の使用。
- 可溶形態のACE2を使用する、請求項1〜8のいずれか1項に記載の使用。
- 二量体形態のACE2を使用する、請求項1〜9のいずれか1項に記載の使用。
- ACE2活性を有するポリペプチドを、従来の腫瘍治療と組み合わせて、特に放射線療法、化学療法、抗体療法及び/又は手術的腫瘍除去と組み合わせて使用する、請求項1〜10のいずれか1項に記載の使用。
- 腫瘍疾患が患者にとって予後が不良であることを特徴とするものである、請求項1〜11のいずれか1項に記載の使用。
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JP2015518964A (ja) * | 2012-06-06 | 2015-07-06 | アトークアント・ダイアグノスティクス・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングAttoquant Diagnostics Gmbh | 血液試料中のタンパク質分解カスケードのペプチド分解産物の測定方法 |
JP2016504042A (ja) * | 2013-01-14 | 2016-02-12 | アペイロン バイオロジックス アーゲー | 改変ace2ポリペプチド |
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AT505262A1 (de) * | 2007-06-12 | 2008-12-15 | Apeiron Biolog Forschungs Und | Rekombinantes ace2 polypeptid |
US8557958B1 (en) | 2012-06-18 | 2013-10-15 | Tarix Pharmaceuticals Ltd. | Compositions and methods for treatment of diabetes |
US8633158B1 (en) | 2012-10-02 | 2014-01-21 | Tarix Pharmaceuticals Ltd. | Angiotensin in treating brain conditions |
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US9333233B2 (en) | 2014-02-25 | 2016-05-10 | Tarix Pharmaceuticals Ltd. | Methods and compositions for the delayed treatment of stroke |
WO2018204385A1 (en) * | 2017-05-02 | 2018-11-08 | Beth Israel Deaconess Medical Center, Inc. | Combination therapy for cancer |
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JP2006504637A (ja) * | 2002-06-19 | 2006-02-09 | ユニバーシティー ヘルス ネットワーク | 心臓、肺および腎臓疾患および高血圧症の治療のためのace2活性化 |
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US6194556B1 (en) | 1997-12-11 | 2001-02-27 | Millennium Pharmaceuticals, Inc. | Angiotensin converting enzyme homolog and therapeutic and diagnostic uses therfor |
US6610497B1 (en) * | 1997-12-11 | 2003-08-26 | Millennium Pharmaceuticals, Inc. | Angiotensin converting enzyme homolog and therapeutic and diagnostic uses therefor |
US7375073B2 (en) * | 2002-02-27 | 2008-05-20 | Wake Forest University Health Sciences | Angiotensin-(1-7) and angiotensin-(1-7) agonists for inhibition of cancer cell growth |
EP1374907A3 (en) | 2002-06-24 | 2004-01-07 | Ghanem Elias c/o Institut Jules Bordet Ghanem | Drug transport and delivery system |
EP1723962A1 (en) * | 2005-05-19 | 2006-11-22 | IMBA-Institut für Molekulare Biotechnologie GmbH | Use of inhibitors of the renin-angiotensin system for the treatment of lung injuries |
AT505262A1 (de) * | 2007-06-12 | 2008-12-15 | Apeiron Biolog Forschungs Und | Rekombinantes ace2 polypeptid |
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JP2006504637A (ja) * | 2002-06-19 | 2006-02-09 | ユニバーシティー ヘルス ネットワーク | 心臓、肺および腎臓疾患および高血圧症の治療のためのace2活性化 |
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Cited By (3)
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JP2015518964A (ja) * | 2012-06-06 | 2015-07-06 | アトークアント・ダイアグノスティクス・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングAttoquant Diagnostics Gmbh | 血液試料中のタンパク質分解カスケードのペプチド分解産物の測定方法 |
JP2016504042A (ja) * | 2013-01-14 | 2016-02-12 | アペイロン バイオロジックス アーゲー | 改変ace2ポリペプチド |
JP2019070019A (ja) * | 2013-01-14 | 2019-05-09 | アペイロン バイオロジックス アーゲー | 改変ace2ポリペプチド |
Also Published As
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WO2009124330A2 (de) | 2009-10-15 |
NZ588435A (en) | 2012-10-26 |
DK2274005T3 (da) | 2013-08-19 |
ES2425308T3 (es) | 2013-10-14 |
CA2720616C (en) | 2016-08-09 |
WO2009124330A3 (de) | 2009-12-10 |
AT506632A1 (de) | 2009-10-15 |
EP2644203A1 (de) | 2013-10-02 |
PL2274005T3 (pl) | 2013-12-31 |
EP2274005B1 (de) | 2013-05-29 |
CA2720616A1 (en) | 2009-10-15 |
AU2009235931B2 (en) | 2015-07-23 |
EP2274005A2 (de) | 2011-01-19 |
AU2009235931A1 (en) | 2009-10-15 |
PT2274005E (pt) | 2013-08-27 |
US8946162B2 (en) | 2015-02-03 |
US20110033524A1 (en) | 2011-02-10 |
JP5650639B2 (ja) | 2015-01-07 |
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