JP2007532639A - 神経細胞への遺伝子送達方法 - Google Patents
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Abstract
【解決手段】本発明は、標的細胞から離れた部位にベクターを投与することにより標的神経細胞にバキュロウイルス(baculorivus)ベクターを送達するための軸索輸送の使用に関する。このような送達は、神経経路の追跡を可能とし、さらにバキュロウイルス(baculorivus)ベクターは、対象における神経疾患の治療のために、別のやり方では容易に接近可能ではない標的神経に治療遺伝子を送達するのに用い得る。
【選択図】図1
Description
本発明は、神経細胞への遺伝子送達方法に関する。
バキュロウイルスAuto grapha californica核多角体病ウイルスの哺乳動物細胞発現ベクターとしての使用は、次世代の遺伝子治療ビヒクルとして前途有望な新興ストラテジーと近年考えられている(Ghosh et aL, 2002; Kost and Condreay, 2002)。増殖性および非増殖性の、静止哺乳動物細胞の両方において広い向性を示すバキュロウイルスは、脊椎動物細胞内で複製せず、皆無かそれに近い顕微鏡的に観察可能な細胞毒性を引き起こす。バキュロウイルスベクター媒介遺伝子導入は、神経系において研究されている。第一報は、CMVプロモーターを含むバキュロウイルスベクターによる、インビトロおよびインビボでの神経細胞の効率的な形質導入を記載している(Sarkis et al., 2000)。ヒト胎児脳の初代細胞培養において、神経上皮、神経芽細胞、およびグリア細胞を感染させることができた。成体ヌードマウスを用いたインビボ研究において、ほんのわずかなニューロンのみを伴う主にアストロサイトが、脳に注入されたバキュロウイルスベクターを形質導入したことを実証した。脳におけるバキュロウイルス媒介遺伝子発現の細胞型特異性を検証する目的の他の研究において(Lehtolainen et al., 2002)、脈絡叢(choroids plexus)の立方上皮細胞は、ラット脳におけるウイルスの主要な標的細胞であると同定され、中程度の遺伝子発現が内皮細胞で検出されたが、ニューロンおよびアストロサイトを含む他のタイプの脳細胞ではごく限られているまたは少しの発現も見出されなかった。
一形態において、本発明は、中枢神経系の標的神経細胞を同定し、該標的神経細胞から離れた中枢神経系の部位を同定し、そしてベクターをそこでベクターが軸索輸送により神経細胞に送達される該部位に投与することを含む、対象の神経細胞にバキュロウイルスベクターを送達するための方法を提供する。
我々は、バキュロウイルスベクターが軸索内を輸送され得るかどうか、つまり注入部位から遠隔の領域での遺伝子発現を媒介しているかどうかを調べた。皮質線条体系経路および黒質線条体経路での検討に続く線条体内注入ならびに視覚経路における硝子体注入を、それぞれ逆行性および順行性軸索輸送を研究するために用いた。ニューロン−特異的CMV E/PDGFプロモーターに適応する組換えバキュロウイルスベクターを、神経細胞体における遺伝子発現を容易にするために用いた。
組換えウイルスベクターの産生:組換えバキュロウイルスを、Bac-To-BacTM Baculovirus Expression system(Gibco BRL, Life Technologies, USA)のマニュアルに従って構築した。CMV E/PDGF、CMV、またはPDGFプロモーター下にルシフェラーゼcDNAを、トランスファープラスミドpFastBac1TMに挿入した。各プロモーターをNotlとXbalの間に挿入し、ルシフェラーゼcDNAをXholとHindIIIの間でpFASTBac1に挿入した。組換えバキュロウイルスベクターを、標準的な方法(O'Reilly et al., 1992)に従ってSf9昆虫細胞内で増殖した。昆虫細胞培養培地から出芽したウイルスを、0.2 μm孔径フィルターを通して濾過し、25,000 gで60分間の超遠心分離により濃縮した。ウイルスペレットをリン酸緩衝食塩水(PBS)に再懸濁し、感染力価をSf9細胞上でのプラーク測定法により測定した。
5'プライマー:5'-AT TGC TCA ACA GTA TGG GCA-3'(配列番号:1)
3'プライマー:5'-CGA AGA AGG AGA ATA GGG TTG-3'(配列番号:2)
線条体内注入:初めに、考えうるベクターの逆行性軸索輸送を検証するためにCy3標識バキュロウイルスベクターを用いた。Cy3標識ベクターを、1×109 プラーク形成単位(pfu)に濃縮したウイルス粒子と共に定位固定装置によりWista ラットの線条体に注入した。皮質線条体系経路および黒質線条体経路に沿って組織切片を採取し、線条体および大脳皮質におけるニューロンを現すために神経核タンパク質(NeuN、神経特異的マーカー)に対する抗体または黒質におけるドーパミン作動性ニューロンを現すためにチロシン水酸化酵素(TH、ドーパミン作動性ニューロン特異的マーカー)に対する抗体を用いて免疫染色した。Cy3はウイルスのエンベロープタンパク質と複合化したので、組織中に露呈した蛍光(fluorescin)は、ウイルスカプシドと一緒に輸送されたウイルス粒子を示すこととなる。
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Claims (40)
- 対象の神経細胞にバキュロウイルスベクターを送達する方法であって、標的神経細胞を同定し、標的神経細胞から離れた中枢神経系の部位を同定しおよびベクターをそこでベクターが軸索輸送により標的神経細胞に送達される該部位に投与することを含む方法。
- ベクターがプロモーターに機能可能に連結されたコード配列を含む、請求項1の方法。
- プロモーターがウイルスプロモーターである、請求項2の方法。
- プロモーターがCMVプロモーターである、請求項3の方法。
- プロモーターが神経細胞特異的プロモーターである、請求項2の方法。
- 神経細胞特異的プロモーターがエンハンサーに機能可能に連結されている、請求項5の方法。
- エンハンサーがプロモーターの神経細胞特異的転写活性を増加する異種性エンハンサーである、請求項6の方法。
- 神経細胞特異的プロモーターがPDGFβプロモーターであり、エンハンサーがCMV Eエンハンサーである、請求項7の方法。
- ベクターが注入により投与される、請求項8の方法。
- 約106〜約109pfuのバキュロウイルスが投与される、請求項9の方法。
- 軸索輸送が順行性輸送、逆行性輸送または経シナプス輸送によるものである、請求項10の方法。
- 対象における神経疾患を治療するための方法であって、疾患により影響を受けた標的神経細胞を同定し、標的神経細胞から離れた中枢神経系の部位を同定しおよびプロモーターに機能可能に連結された治療遺伝子を含むバキュロウイルスベクターをそこでバキュロウイルスベクターが軸索輸送により神経細胞に送達される該部位に投与することを含む方法。
- プロモーターがウイルスプロモーターである、請求項12の方法。
- プロモーターがCMVプロモーターである、請求項13の方法。
- プロモーターが神経細胞特異的プロモーターである、請求項12の方法。
- 神経細胞特異的プロモーターがエンハンサーに機能可能に連結されている、請求項15の方法。
- 神経特異的プロモーターがPDGFβプロモーターであり、エンハンサーがCMV Eエンハンサーである、請求項16の方法。
- ベクターが注入により投与される、請求項17の方法。
- バキュロウイルスが定位固定注入により投与される、請求項18の方法。
- 約102〜約109pfuのバキュロウイルスが投与される、請求項19の方法。
- バキュロウイルスが順行性輸送、逆行性輸送または経シナプス輸送により輸送される、請求項20の方法。
- 神経疾患が脳卒中、虚血、癲癇、頭部および脊髄損傷、パーキンソン病、ハンティングトン病、アルツハイマー病、筋萎縮性側索硬化症または神経遺伝疾患である、請求項21の方法。
- 神経疾患がパーキンソン病である、請求項22の方法。
- 神経細胞が黒質(substania nigra)のドーパミン作動性ニューロンである、請求項23の方法。
- 神経疾患がハンティングトン病(Hunginton's disease)である、請求項22の方法。
- 神経細胞が皮質線条体淡蒼球系ニューロンである、請求項25の方法。
- 神経経路を追跡するための方法であって、検出用のバキュロウイルスを対象の中枢神経系の部位に投与しおよびウイルスの輸送経路を検出することを含む方法。
- ウイルスの表面が検出可能なマーカーで標識されている、請求項27の方法。
- 検出可能なマーカーがCy3である、請求項28の方法。
- バキュロウイルスがプロモーターに機能可能に連結された遺伝子を含み、該遺伝子が検出され得るタンパク質をコードしている、請求項29の方法。
- プロモーターがウイルスプロモーターである、請求項30の方法。
- ウイルスプロモーターがCMVプロモーターである、請求項31の方法。
- プロモーターが神経細胞特異的プロモーターである、請求項30の方法。
- 神経細胞特異的プロモーターがエンハンサーに機能可能に連結されている、請求項33の方法。
- 神経特異的プロモーターがPDGFβプロモーターであり、エンハンサーがCMV Eエンハンサーである、請求項34の方法。
- タンパク質が蛍光タンパク質である、請求項35の方法。
- バキュロウイルスが注入により投与される、請求項29の方法。
- バキュロウイルスが直接注入、定位固定注入または硝子体内注入により投与される、請求項37の方法。
- 約106〜約109pfuのバキュロウイルスが投与される、請求項38の方法。
- バキュロウイルスが順行性輸送、逆行性輸送または経シナプス輸送により輸送される、請求項40の方法。
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PCT/SG2004/000089 WO2005100577A1 (en) | 2004-04-14 | 2004-04-14 | Method for gene delivery to neuronal cells |
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US (1) | US20090041665A1 (ja) |
EP (1) | EP1747277B1 (ja) |
JP (1) | JP2007532639A (ja) |
CN (1) | CN101137755A (ja) |
TW (1) | TW200536939A (ja) |
WO (1) | WO2005100577A1 (ja) |
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GB2431348B (en) * | 2004-06-23 | 2009-12-30 | Ian A Ferguson | Agents and methods for early diagnosis and monitoring of alzheimer's disease and other neurological disorders |
WO2008105088A1 (ja) | 2007-02-28 | 2008-09-04 | Keio University | 脊髄損傷治療薬剤 |
US20150252384A1 (en) * | 2012-08-01 | 2015-09-10 | National Children's Hospital | Intrathecal delivery of recombinant adeno-associated virus 9 |
CN106544326B (zh) * | 2016-11-07 | 2020-06-26 | 中国科学院武汉病毒研究所 | 顺行跨多级突触、跨神经元的示踪系统 |
EA201992358A1 (ru) | 2017-04-03 | 2020-03-24 | Инкоудид Терапьютикс, Инк. | Тканеселективная экспрессия трансгена |
WO2019109051A1 (en) | 2017-12-01 | 2019-06-06 | Encoded Therapeutics, Inc. | Engineered dna binding proteins |
CN113832185A (zh) * | 2018-11-13 | 2021-12-24 | 四川横竖生物科技股份有限公司 | 构建hNPY与hAgRP基因过表达嵌合动物模型的载体、试剂及应用 |
GB202005732D0 (en) * | 2020-04-20 | 2020-06-03 | Synpromics Ltd | Regulatory nucleic acid sequences |
Citations (2)
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US20020193335A1 (en) * | 2001-03-02 | 2002-12-19 | Hesson David P. | Gene therapy for neurological tissues |
WO2003055983A2 (en) * | 2001-12-21 | 2003-07-10 | The Salk Institute For Biological Studies | Targeted retrograde gene delivery to motor neurons |
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US3587968A (en) * | 1969-07-07 | 1971-06-28 | Ciba Geigy Corp | Apparatus for the diffusion of volatile products |
DE3431140A1 (de) * | 1984-08-24 | 1986-03-06 | Behringwerke Ag, 3550 Marburg | Enhancer fuer eukaryotische expressionssysteme |
US5168062A (en) * | 1985-01-30 | 1992-12-01 | University Of Iowa Research Foundation | Transfer vectors and microorganisms containing human cytomegalovirus immediate-early promoter-regulatory DNA sequence |
IL114716A0 (en) * | 1995-07-24 | 1995-11-27 | Ohayon Nissim | Device for the controlled dispensation and evaporation of volatile liquids |
US6957779B2 (en) * | 2001-11-20 | 2005-10-25 | Microlin, L.C. | Foldable, refillable, sustained-release fluid delivery system |
US6923383B1 (en) * | 2000-08-24 | 2005-08-02 | Microlin, L.C. | Controlled release of substances |
GB2355200B (en) * | 1999-10-12 | 2003-07-02 | Reckitt & Colmann Prod Ltd | Improvements in or relating to devices |
US6722577B2 (en) * | 2001-09-10 | 2004-04-20 | Dobyns, Iii Simon L. | Container for dispensing aromatic liquid |
US7341847B2 (en) * | 2003-04-02 | 2008-03-11 | Agency For Science, Technology And Research | Promoter construct for gene expression in neuronal cells |
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- 2004-04-14 JP JP2007508306A patent/JP2007532639A/ja not_active Ceased
- 2004-04-14 WO PCT/SG2004/000089 patent/WO2005100577A1/en active Application Filing
- 2004-04-14 US US11/578,647 patent/US20090041665A1/en not_active Abandoned
- 2004-04-14 EP EP04727472A patent/EP1747277B1/en not_active Expired - Lifetime
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US20020193335A1 (en) * | 2001-03-02 | 2002-12-19 | Hesson David P. | Gene therapy for neurological tissues |
WO2003055983A2 (en) * | 2001-12-21 | 2003-07-10 | The Salk Institute For Biological Studies | Targeted retrograde gene delivery to motor neurons |
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US20090041665A1 (en) | 2009-02-12 |
EP1747277A1 (en) | 2007-01-31 |
TW200536939A (en) | 2005-11-16 |
EP1747277B1 (en) | 2011-08-10 |
WO2005100577A1 (en) | 2005-10-27 |
CN101137755A (zh) | 2008-03-05 |
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