JP5434599B2 - 抑肝散のバイオアッセイ方法 - Google Patents
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- XOFLBQFBSOEHOG-UUOKFMHZSA-N γS-GTP Chemical compound C1=2NC(N)=NC(=O)C=2N=CN1[C@@H]1O[C@H](COP(O)(=O)OP(O)(=O)OP(O)(O)=S)[C@@H](O)[C@H]1O XOFLBQFBSOEHOG-UUOKFMHZSA-N 0.000 description 25
- 239000003814 drug Substances 0.000 description 19
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- 239000000284 extract Substances 0.000 description 6
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- JKMHFZQWWAIEOD-UHFFFAOYSA-N 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid Chemical compound OCC[NH+]1CCN(CCS([O-])(=O)=O)CC1 JKMHFZQWWAIEOD-UHFFFAOYSA-N 0.000 description 2
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- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 description 1
- 102000040125 5-hydroxytryptamine receptor family Human genes 0.000 description 1
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- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
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- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
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- A61K36/28—Asteraceae or Compositae (Aster or Sunflower family), e.g. chamomile, feverfew, yarrow or echinacea
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Description
セロトニン1A受容体結合阻害試験:
( 各実験条件 )
使用細胞膜:CHO細胞膜(ヒト組換5−HT1A受容体を発現)(パーキンエルマー)
培養緩衝液:アスコルビン酸0.1%、EDTA0.5mMおよびMgSO410mMを含む50mMTris−HCl(pH7.4)
培養時間および温度:60分、25℃
リガンド:1.5nMの[3H]8−OH−DPAT(NET−929、170.2Ci/mmol、パーキンエルマー)
非特異的リガンド: 10μMのメテルゴリン(Metergoline;シグマ)
Kd: 2nM
Bmax:1.3pmol/mgプロテイン
特異的結合:75%
約20mgの被験薬物(TJ−54または構成生薬エキス)を秤量し、100μL(TJ−54では125μL)の蒸留水を加え、さらに同量のDMSOを加えて50%DMSO溶液とした。この溶液を用いて各濃度に希釈した。
1mLのチューブに、32−46μgプロテイン/500μLのCHO細胞膜溶液、20μLの[3H]8−OH−DPAT(最終濃度:1.5nM)および各濃度の被験薬物溶液(vehicleでは最終濃度0.5%DMSO)5.25μLを加えて、インキュベーションした(60分、25℃)。インキュベーション終了後、セルハーベスター(UNIFILTER−96,パーキンエルマー)でガラス繊維フィルター(Whatman 1821−915 GF/B、ワットマン)に濾過し、50mMトリス緩衝液で4回洗浄後、ガラス繊維フィルターの[3H]8−OH−DPATの放射活性を液体シンチレーションカウンター(Top Count NXT、パーキンエルマー)で測定した。非特異的結合は、リガンド非標識の10μMメテルゴリン存在下、総結合は被験薬物非存在下(vehicle)での[3H]8−OH−DPATの放射活性から算出した。
阻害率(%) = [1−(c−a)/(b−a)]×100
a ; 非特異結合の平均cpm
b ; 総結合の平均cpm
c ; 試験化合物存在下でのcpm
抑肝散(TJ−54;(株)ツムラ製)200μg/mLおよび各構成生薬の7エキス(50μg/mL)の結合活性(%)を上記方法で求めた結果を図1に示す。この結果から、抑肝散およびチョウトウコウに高い結合活性が認められた。さらに図2に示すように両エキスには、用量依存性が認められた。
[35S]GTPγS(セロトニン1A受容体)結合試験
( 各実験条件 )
使用細胞膜:CHO細胞膜(ヒト組換5−HT1A受容体を発現)(パーキンエルマー)
培養緩衝液:NaCl 100mM、MgCl2 10mM、DTT 1mMおよびEDTA 1mMを含む20mM HEPES(pH7.4)
培養時間および温度:30分、30℃
非特異的リガンド: 100μMの[35S]GTPγS(SJ−1308、1033Ci/mmol、アマシャム)
約20mgの被験薬物(TJ−54または構成生薬エキス)を秤量し、100μL(TJ−54では125μL)の蒸留水を加え、さらに同量のDMSOを加えて50% DMSO溶液とした。この溶液を用いて各濃度に希釈した。
96ウエルのプレートに50μLのCHO細胞膜溶液(25−30μgプロテイン/mL)、各濃度の被験薬物溶液(vehicleでは最終濃度0.4%DMSO)、0.42μLおよびGDP(10μM)溶液25μLを、HEPES(pH7.4)緩衝液中でインキュベーションした(20分、30℃)。次に、SPAビーズ(Scintillation Proximity Assay beads;GE アマシャム)溶液25μLを加えてさらにインキュベーションした(60分、30℃)。その後、放射活性を測定するため、[35S]GTPγS(0.3nM)10μLを加えてさらにインキュベーションした(30分、30℃)。
結合率(%) = [(c−a)/(b−a)]×100
a ; 非特異結合の平均cpm
b ; 300nMセロトニン存在下での平均cpm
c ; 試験化合物存在下でのcpm
抑肝散(TJ−54;(株)ツムラ製)を用い、上記方法で各濃度におけるアゴニスト活性(%)を求めた。また、抑肝散を構成する7生薬についても、同様にアゴニスト活性(%)を求めた。これらの結果のうち、抑肝散およびチョウトウコウについてのアゴニスト活性を図3に示す。
Claims (3)
- セロトニン1A受容体を発現している細胞膜に対して、標識GTPと抑肝散とを作用させ、結合標識GTP量から抑肝散の受容体結合によるアゴニスト活性を測定することを特徴とする抑肝散のバイオアッセイ方法。
- 抑肝散濃度が12.5〜200μg/mlである請求項1記載の抑肝散のバイオアッセイ方法。
- 請求項1または2記載のバイオアッセイ法により、基準抑肝散製剤と被検抑肝散製剤の受容体結合によるアゴニスト活性を同一条件で求め、基準抑肝散製剤と被検抑肝散製剤を比較することを特徴とする抑肝散製剤の品質同等性の評価方法。
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US (1) | US8609352B2 (ja) |
JP (1) | JP5434599B2 (ja) |
CN (1) | CN101945663B (ja) |
WO (1) | WO2009101700A1 (ja) |
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CN102066930B (zh) | 2008-06-27 | 2014-10-08 | 株式会社津村 | 抑肝散的生物测定方法 |
CN103893322B (zh) * | 2014-04-28 | 2016-01-27 | 中国药科大学 | 一种治疗老年痴呆症的中药有效部位及其制备方法与应用 |
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JP2004533843A (ja) * | 2001-07-05 | 2004-11-11 | ユニベルシテ・ルイ・パスツール | キサンツレン酸の神経伝達物質活性のモジュレーターの同定 |
JP2007535480A (ja) * | 2003-09-12 | 2007-12-06 | ジヤンセン・フアーマシユーチカ・ナームローゼ・フエンノートシヤツプ | キメラgabab受容体 |
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US6379714B1 (en) | 1995-04-14 | 2002-04-30 | Pharmaprint, Inc. | Pharmaceutical grade botanical drugs |
WO1999020292A1 (en) | 1997-10-23 | 1999-04-29 | Pharmaprint, Inc. | Pharmaceutical grade ginseng |
CA2453189A1 (en) | 2001-07-11 | 2003-01-23 | Ovita Limited | Bioassay for myostatin |
CN1299759C (zh) * | 2004-09-17 | 2007-02-14 | 鲁南制药集团股份有限公司 | 一种治疗眩晕的中药组合物及其制备、质量控制方法 |
JP5267461B2 (ja) * | 2007-07-11 | 2013-08-21 | 株式会社ツムラ | 抑肝散のバイオアッセイ方法 |
US20090098228A1 (en) * | 2007-10-10 | 2009-04-16 | Tsumura & Co. | Agent and method for improvement of impairment of learning and memory |
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JP2004533843A (ja) * | 2001-07-05 | 2004-11-11 | ユニベルシテ・ルイ・パスツール | キサンツレン酸の神経伝達物質活性のモジュレーターの同定 |
JP2007535480A (ja) * | 2003-09-12 | 2007-12-06 | ジヤンセン・フアーマシユーチカ・ナームローゼ・フエンノートシヤツプ | キメラgabab受容体 |
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CN101945663B (zh) | 2013-12-04 |
CN101945663A (zh) | 2011-01-12 |
WO2009101700A1 (ja) | 2009-08-20 |
US8609352B2 (en) | 2013-12-17 |
US20100317028A1 (en) | 2010-12-16 |
JPWO2009101700A1 (ja) | 2011-06-02 |
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