JPWO2005037321A1 - 癌遺伝子治療薬 - Google Patents
癌遺伝子治療薬 Download PDFInfo
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- JPWO2005037321A1 JPWO2005037321A1 JP2005514783A JP2005514783A JPWO2005037321A1 JP WO2005037321 A1 JPWO2005037321 A1 JP WO2005037321A1 JP 2005514783 A JP2005514783 A JP 2005514783A JP 2005514783 A JP2005514783 A JP 2005514783A JP WO2005037321 A1 JPWO2005037321 A1 JP WO2005037321A1
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Abstract
Description
キャリアー細胞投与に対する生体のCTL反応を誘導するために投与される免疫処置用ウイルスと、
投与前にオンコリティックウイルスを感染させ、同ウイルスを生体の腫瘍細胞に作用させるためのキャリアー細胞とを組み合わせたものである。
(1)アテロコラーゲン
(2)投与前にキャリアー細胞に感染させるGM−CSF(granulocyte-macrophage colony stimulating factor:顆粒球・マクロファージコロニー刺激因子)発現ベクター
(3)鉄剤
(4)ポルフィリン化合物(例えば、5−アミノレブリン酸(5-aminolevulinic acid:ALA))
(1)腫瘍内投与によりキャリアー細胞を投与する。
(2)キャリアー細胞と共に、アテロコラーゲンを投与する。
(3)オンコリティックウイルスのみならず、GM−CSF発現ベクターを感染させたキャリアー細胞を投与する。
(4)キャリアー細胞と共に、鉄剤および/又はポルフィリン化合物(例えば、5−アミノレブリン酸(5-aminolevulinic acid:ALA))を投与する。
(5)免疫処置用ウイルスの投与と共に、またはその前後に、腫瘍免疫のため腫瘍細胞を投与する。
〔1〕本発明の癌遺伝子治療薬に使用するキャリアー細胞等
まず、本発明の癌遺伝子治療薬に使用するキャリアー細胞について説明する。キャリアー細胞は、例えば以下の(1)〜(4)の細胞から選択することができる。
(1)A549細胞
(2)293細胞
(3)SW626細胞
(4)HT―3細胞(HT―III細胞)
本発明の癌遺伝子治療薬は、キャリアー細胞投与に対する生体のCTL反応を誘導するために投与される免疫処置用ウイルスと、オンコリティックウイルスを感染させ、同ウイルスを生体の腫瘍細胞に作用させるためのキャリアー細胞とを組み合わせたもの、つまり、予め投与される免疫処置用ウイルスと、その後に投与されるキャリアー細胞との2種類の薬剤を組み合わせたものであり、予めアデノウイルス等のウイルス投与により免疫処置(事前免疫(イムナイゼーション))を施した後、オンコリティックウイルスを感染させたキャリアー細胞を投与することで、生体のCTL反応が誘導・惹起され、in vivoにおいて劇的な抗腫瘍効果を得ることができる。
以上を1回として、キャリアー細胞等を1−6回投与する。複数回投与する場合は、連日あるいは2,3日おきに投与する。
既存の癌細胞株のうち、キャリアー細胞として強力な癌細胞増殖抑制効果を発揮する細胞株を選別するため、以下の実験を行った。
次に、ヌードマウス皮下腫瘍モデルを用いて、上記アデノウイルスAdE3−1A1.3Bを感染させた各キャリアー細胞のin vivo抗腫瘍効果を検討した。実験では、生後5週のヌードマウスの皮下にヒト卵巣癌細胞RMG−1を移植し、4週間後、直径約10−15mmになった巨大腫瘍に対し、各キャリアー細胞を6回腫瘍内注射し、腫瘍体積の変化を観察した。その結果を図5のグラフに示す。グラフ中、黒四角印の「control」はPBS緩衝液を6回腫瘍内注射した結果、黒丸印の「AdE3-1A1.3B」は上記アデノウイルスAdE3−1A1.3Bをマウス1匹に1×1010ウイルス粒子投与した結果、黒三角印はアデノウイルスAdE3−1A1.3Bを250vp/cell感染させたSW626細胞をマウス1匹に1×107個投与した結果、黒菱形印はアデノウイルスAdE3−1A1.3Bを25vp/cell感染させた293細胞をマウス1匹に1×107個投与した結果、白四角印はアデノウイルスAdE3−1A1.3Bを50vp/cell感染させたA549細胞をマウス1匹に1×107個投与した結果、である。同図に示すように、293細胞およびA549細胞をキャリアー細胞に用いた場合は、投与後50日経過すると、直径約10−15mmの巨大腫瘍が完全に消退した。SW626細胞は、98%の増殖抑制効果を示した。
次に、免疫機能が正常な(C57BL/6×C3/He)F1マウスを用いて本発明の癌遺伝子治療薬のin vivo抗腫瘍効果を検討した。本実験では、(1) syngenicモデルマウスに対し同種の卵巣癌細胞OVHMを皮下移植し、その10日後以降形成された5−10mmの皮下腫瘍に対し、上記アデノウイルスAdE3−1A1.3Bを250vp/cell感染させた放射線処理(放射線治療)後のA549細胞を6回腫瘍内投与した場合、(2) 生後7週のsyngenicモデルマウスを免疫処置用ウイルスであるアデノウイルス投与により予め免疫し、その3ヶ月後、上記(1)の場合と同様に、卵巣癌細胞OVHMを皮下移植し、その10日後以降、上記アデノウイルスAdE3−1A1.3Bを250vp/cell感染させた放射線処理後のA549細胞を6回腫瘍内投与した場合、(3) コントロールとしてPBS緩衝液を6回腫瘍内投与した場合、のそれぞれの場合について抗腫瘍効果を検討した。
次に、ミッドカインプロモーターを使用した場合の抗腫瘍効果を検討した。図10(a)は、1〜21のヒト手術標本におけるミッドカイン(MK)mRNAの発現をRT−PCRで検討した結果である。同図に示すように、神経膠芽腫(glioblastoma)、 未分化星細胞腫(anaplastic astrocytoma)といった悪性グリオーマ(malignant glioma)および瀰漫性星細胞腫(diffuse astrocytoma)においてミッドカインmRNAの過剰発現が認められた。このように、ミッドカインは脳腫瘍など多くの癌において過剰発現が認められる。
卵巣癌細胞HEYを12well dishに10000/well播いた後、翌日にFeSO4を50μg/ml、5μg/ml、0.5μg/ml、0μg/mlの各濃度において入れ、全てのwellに細胞障害型アデノウイルスAdE3-1A1.3Bを入れ、5日後にアデノウイルスの増殖抑制効果をIC50で評価した。その結果を図15に示す。図中縦軸は、各場合におけるIC50のウイルス投与量(vp/cell)を相対的に示すものである。同図に示すように、FeSO4 50μg/mlおよびアデノウイルスを併用した場合では、アデノウイルス単独に比べ約20倍、FeSO4 5μg/mlおよびアデノウイルス併用では、アデノウイルス単独に比べ約8倍の増殖抑制効果を示した。
本発明の癌遺伝子治療薬による癌治療法の最適化を図るため、以下一連の実験を行った。
上記実験結果を図19(a)(b)に示す。各グラフ中、「2−4w」「5−9w」「10−15w」「16−22w」は、それぞれ、上記投与間隔を2−4週、5−9週、10−15週、16−22週の間に設定した実験結果であり、各群のマウスの数はn=5である。これらの図に示すように、上記投与間隔を10−15週に設定したとき最も良好な抗腫瘍効果が得られた。本実験のように、不活化処理していないアデノウイルスAd−β−galを免疫処置用ウイルスに使用した場合には、当該ウイルス投与後およそ10−15週においてT細胞によるCTL反応が中和抗体による感染抑制に比べ優位になると考えられる。
Claims (19)
- キャリアー細胞投与に対する生体のCTL反応を誘導するために投与される免疫処置用ウイルスと、
投与前にオンコリティックウイルスを感染させ、同ウイルスを生体の腫瘍細胞に作用させるためのキャリアー細胞とを組み合わせた癌遺伝子治療薬。 - 免疫処置用ウイルスおよびオンコリティックウイルスは、アデノウイルス、ヘルペスウイルス、HIVウイルス等のレンチウイルス、レトロウイルス、レオウイルス、水疱性口内炎ウイルス(VSV)、又はその他のオンコリティックウイルスから選ばれる、請求項1記載の癌遺伝子治療薬。
- 免疫処置用ウイルスは非増殖型のものおよび/又は不活化したものである、請求項1又は2記載の癌遺伝子治療薬。
- キャリアー細胞は、A549細胞、293細胞、SW626細胞、HT―3細胞、PA−1細胞、又はその他のヒト由来の癌細胞もしくは正常細胞から選ばれる、請求項1〜3のいずれか1項に記載の癌遺伝子治療薬。
- キャリアー細胞に感染させるオンコリティックウイルスは、治療対象の癌の種類等に応じて、1A1.3Bプロモーター、ミッドカインプロモーター、β―HCGプロモーター、SCCA1プロモーター、cox−2プロモーター、PSAプロモーター、又はその他の腫瘍特異的プロモーターを有する、請求項1記載の癌遺伝子治療薬。
- さらに、アテロコラーゲンを備えた、請求項1記載の癌遺伝子治療薬。
- さらに、投与前にキャリアー細胞に感染させるGM−CSF発現ベクターを備えた、請求項1記載の癌遺伝子治療薬。
- さらに、鉄剤および/又はポルフィリン化合物を備えた、請求項1記載の癌遺伝子治療薬。
- さらに、腫瘍免疫のため投与される腫瘍細胞を備えた、請求項1記載の癌遺伝子治療薬。
- キャリアー細胞投与に対する生体のCTL反応を誘導するために免疫処置用ウイルスをヒトに投与し、所定期間経過後、オンコリティックウイルスを感染させ、同ウイルスを腫瘍細胞に作用させるためのキャリアー細胞を少なくとも1回ヒトに投与することを特徴とする癌遺伝子治療方法。
- 免疫処置用ウイルス投与からキャリアー細胞投与までの期間を、およそ2週間以上13週間以下とする、請求項10記載の癌遺伝子治療方法。
- 免疫処置用ウイルスの投与量を、当該ウイルスに対する抗体陰性の患者にはおよそ105ウイルス粒子以上1011ウイルス粒子以下とし、当該ウイルスに対する抗体陽性の患者にはおよそ107ウイルス粒子以下とする、請求項10記載の癌遺伝子治療方法。
- キャリアー細胞によるオンコリティックウイルスの1回の投与量を、およそ109ウイルス粒子以上1014ウイルス粒子以下とする、請求項10記載の癌遺伝子治療方法。
- キャリアー細胞に対するオンコリティックウイルスの感染量を、およそ0.1ウイルス粒子/細胞以上2000ウイルス粒子/細胞以下とする、請求項10記載の癌遺伝子治療方法。
- 腫瘍内投与によりキャリアー細胞を投与する、請求項10記載の癌遺伝子治療方法。
- キャリアー細胞と共に、アテロコラーゲンを投与する、請求項10記載の癌遺伝子治療方法。
- オンコリティックウイルスのみならず、GM−CSF発現ベクターを感染させたキャリアー細胞を投与する、請求項10記載の癌遺伝子治療方法。
- キャリアー細胞と共に、鉄剤および/又はポルフィリン化合物を投与する、請求項10記載の癌遺伝子治療方法。
- 免疫処置用ウイルスの投与と共に、またはその前後に、腫瘍免疫のため腫瘍細胞を投与する、請求項10記載の癌遺伝子治療方法。
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JP2005514783A Expired - Fee Related JP4423507B2 (ja) | 2003-10-15 | 2004-10-15 | 癌遺伝子治療薬 |
JP2005514784A Expired - Fee Related JP4423508B2 (ja) | 2003-10-15 | 2004-10-15 | 癌遺伝子治療薬 |
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EP (2) | EP1676589A4 (ja) |
JP (2) | JP4423507B2 (ja) |
KR (2) | KR100842658B1 (ja) |
CN (2) | CN100488567C (ja) |
CA (2) | CA2542335A1 (ja) |
WO (2) | WO2005037322A1 (ja) |
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US20100086522A1 (en) * | 2006-07-18 | 2010-04-08 | Ottawa Health Research Institute | Disparate suicide carrier cells for tumor targeting of promiscuous oncolytic viruses |
JP5187676B2 (ja) * | 2007-06-27 | 2013-04-24 | 国立大学法人名古屋大学 | 腹腔内腫瘍病変の治療又は予防用の医薬組成物 |
US8450106B2 (en) * | 2007-10-17 | 2013-05-28 | The Ohio State University Research Foundation | Oncolytic virus |
SG11201404313YA (en) * | 2012-01-25 | 2014-10-30 | Dnatrix Inc | Biomarkers and combination therapies using oncolytic virus and immunomodulation |
BR112014019049A2 (pt) | 2012-02-02 | 2017-07-04 | Univ Texas | adenovirus imunogênico |
JP6358831B2 (ja) * | 2014-03-31 | 2018-07-18 | 雄行 濱田 | 新規細胞、それを用いた抗腫瘍効果の誘導剤、癌の遺伝子治療用医薬および抗腫瘍効果の誘導方法 |
CN106591361A (zh) * | 2015-10-20 | 2017-04-26 | 钱文斌 | 一种重组痘溶瘤病毒及其构建方法和应用 |
AU2018395010B2 (en) * | 2017-12-29 | 2022-07-28 | Genemedicine Co., Ltd. | Cell sheet for gene delivery |
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US5837261A (en) * | 1990-09-25 | 1998-11-17 | Cantab Pharmaceuticals Research Limited | Viral vaccines |
US6403370B1 (en) * | 1997-02-10 | 2002-06-11 | Genstar Therapeutics Corporation | Oncolytic/immunogenic complementary-adenoviral vector system |
WO1999045783A1 (en) * | 1998-03-12 | 1999-09-16 | The Trustees Of The University Of Pennsylvania | Producer cells for replication selective viruses in the treatment of malignancy |
US20020177551A1 (en) * | 2000-05-31 | 2002-11-28 | Terman David S. | Compositions and methods for treatment of neoplastic disease |
AU2004289953B2 (en) * | 2003-06-18 | 2008-09-25 | Genelux Corporation | Modified recombinant vaccina viruses and other microorganisms, uses thereof |
US7026164B2 (en) * | 2003-07-03 | 2006-04-11 | Cell Genesys, Inc. | Adenovirus packaging cell lines |
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CN100488567C (zh) | 2009-05-20 |
US20070134202A1 (en) | 2007-06-14 |
CA2542335A1 (en) | 2005-04-28 |
US20070141028A1 (en) | 2007-06-21 |
CN100438920C (zh) | 2008-12-03 |
KR100842658B1 (ko) | 2008-06-30 |
KR100798996B1 (ko) | 2008-01-28 |
EP1676590A1 (en) | 2006-07-05 |
EP1676589A4 (en) | 2007-08-15 |
WO2005037322A1 (ja) | 2005-04-28 |
CN1867361A (zh) | 2006-11-22 |
EP1676589A1 (en) | 2006-07-05 |
WO2005037321A1 (ja) | 2005-04-28 |
CN1867362A (zh) | 2006-11-22 |
KR20060096023A (ko) | 2006-09-05 |
EP1676590A4 (en) | 2007-08-15 |
JP4423507B2 (ja) | 2010-03-03 |
JP4423508B2 (ja) | 2010-03-03 |
CA2542337A1 (en) | 2005-04-28 |
KR20060096024A (ko) | 2006-09-05 |
JPWO2005037322A1 (ja) | 2006-12-28 |
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