JP4423508B2 - 癌遺伝子治療薬 - Google Patents
癌遺伝子治療薬 Download PDFInfo
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- JP4423508B2 JP4423508B2 JP2005514784A JP2005514784A JP4423508B2 JP 4423508 B2 JP4423508 B2 JP 4423508B2 JP 2005514784 A JP2005514784 A JP 2005514784A JP 2005514784 A JP2005514784 A JP 2005514784A JP 4423508 B2 JP4423508 B2 JP 4423508B2
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Description
(1)A549細胞
(2)293細胞
(3)SW626細胞
(4)HT―3(HT―III細胞)
(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
本発明の癌遺伝子治療薬は、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含み、当該キャリアー細胞は以下の(1)〜(4)の細胞から選ばれる。
(1)A549細胞
(2)293細胞
(3)SW626細胞
(4)HT―3細胞(HT―III細胞)
以下に説明するように、本発明の癌遺伝子治療薬を免疫処置用ウイルス等と組み合わせて構成することは好ましい。
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、本発明の癌遺伝子治療薬の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、本発明の癌遺伝子治療薬を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。
次に、不活化処理していない前記アデノウイルスAd−β−galを1、2、3回投与し、ブースター効果によりそれぞれ血中抗アデノウイルス抗体が増加したマウスにおける抗腫瘍効果について検討した。この実験では、生後5週の(C57BL/6×C3/He)F1マウスに、アデノウイルスAd−β−galを1回、2回または3回投与し(各回3週おきに、1回あたり1×1010vp投与)、その後、卵巣癌細胞OVHMをマウス1匹あたり1×106個皮下移植し、5−10mmの腫瘍形成後、放射線処理後のキャリアー細胞を腫瘍内投与した。キャリアー細胞には、A549細胞単独、または、A549細胞と293細胞とを混合したものを使用した。
Claims (8)
- オンコリティックウイルスとしてアデノ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含み、当該キャリアー細胞は以下の(1)又は(2)の細胞から選ばれる、癌遺伝子治療薬。
(1)A549細胞
(2)SW626細胞 - 上記キャリアー細胞に感染させるアデノウイルスは、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、B−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、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してアデノウイルスを備えた、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。
- オンコリティックウイルスとしてアデノ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含み、当該キャリアー細胞にはA549細胞と293細胞とが併用される、癌遺伝子治療薬。
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JP2003354983 | 2003-10-15 | ||
JP2003354983 | 2003-10-15 | ||
PCT/JP2004/015221 WO2005037322A1 (ja) | 2003-10-15 | 2004-10-15 | 癌遺伝子治療薬 |
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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 |
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- 2004-10-15 CN CNB2004800303155A patent/CN100488567C/zh not_active Expired - Fee Related
- 2004-10-15 CN CNB200480030316XA patent/CN100438920C/zh not_active Expired - Fee Related
- 2004-10-15 JP JP2005514784A patent/JP4423508B2/ja not_active Expired - Fee Related
- 2004-10-15 CA CA002542337A patent/CA2542337A1/en not_active Abandoned
- 2004-10-15 US US10/575,894 patent/US20070141028A1/en not_active Abandoned
- 2004-10-15 KR KR1020067007091A patent/KR100798996B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
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 |
CA2542337A1 (en) | 2005-04-28 |
KR20060096024A (ko) | 2006-09-05 |
JPWO2005037321A1 (ja) | 2006-12-28 |
JPWO2005037322A1 (ja) | 2006-12-28 |
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