JP2015143689A5 - 免疫基盤ボツリヌス毒素血清a型活性アッセイ - Google Patents
免疫基盤ボツリヌス毒素血清a型活性アッセイ Download PDFInfo
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- JP2015143689A5 JP2015143689A5 JP2015028972A JP2015028972A JP2015143689A5 JP 2015143689 A5 JP2015143689 A5 JP 2015143689A5 JP 2015028972 A JP2015028972 A JP 2015028972A JP 2015028972 A JP2015028972 A JP 2015028972A JP 2015143689 A5 JP2015143689 A5 JP 2015143689A5
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- 230000000694 effects Effects 0.000 title claims description 7
- 210000002966 Serum Anatomy 0.000 title claims description 4
- 108010043024 Botulinum Toxins Proteins 0.000 title description 3
- 238000004166 bioassay Methods 0.000 title description 3
- 229940053031 botulinum toxin Drugs 0.000 title description 3
- 102000004183 Synaptosomal-Associated Protein 25 Human genes 0.000 claims 9
- 108010057722 Synaptosomal-Associated Protein 25 Proteins 0.000 claims 9
- 108090001123 antibodies Proteins 0.000 claims 8
- 102000004965 antibodies Human genes 0.000 claims 8
- 108030001720 Bontoxilysin Proteins 0.000 claims 7
- 108010047041 Complementarity Determining Regions Proteins 0.000 claims 5
- 239000000427 antigen Substances 0.000 claims 5
- 241000124008 Mammalia Species 0.000 claims 4
- 108010061543 Neutralizing Antibodies Proteins 0.000 claims 4
- 125000003275 alpha amino acid group Chemical group 0.000 claims 4
- 238000003776 cleavage reaction Methods 0.000 claims 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims 2
- 125000000404 glutamine group Chemical group N[C@@H](CCC(N)=O)C(=O)* 0.000 claims 2
- 238000003018 immunoassay Methods 0.000 claims 2
- 239000000758 substrate Substances 0.000 claims 2
- 210000004369 Blood Anatomy 0.000 claims 1
- 230000036947 Dissociation constant Effects 0.000 claims 1
- 231100000601 Intoxication Toxicity 0.000 claims 1
- ZDXPYRJPNDTMRX-VKHMYHEASA-N L-glutamine Chemical compound OC(=O)[C@@H](N)CCC(N)=O ZDXPYRJPNDTMRX-VKHMYHEASA-N 0.000 claims 1
- 208000005374 Poisoning Diseases 0.000 claims 1
- 102000038129 antigens Human genes 0.000 claims 1
- 108091007172 antigens Proteins 0.000 claims 1
- 239000008280 blood Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 230000035987 intoxication Effects 0.000 claims 1
- 231100000566 intoxication Toxicity 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
Description
本発明は、免疫基盤ボツリヌス毒素血清A型活性アッセイに関する。
本発明により、免疫基盤ボツリヌス毒素血清A型活性アッセイが提供され得る。
Claims (5)
- a.哺乳動物から得られた被験試料に既知の量のBoNT/Aを添加すること、ここで該哺乳動物は、抗BoNT/A活性中和抗体の存在または不在に関して試験されており、該被験試料は、該哺乳動物由来の血液試料または血清試料である;
b.SNAP−25を発現する確立された細胞株からの細胞を被験試料に接触させること、ここで確立された細胞株からの細胞はBoNT/A中毒に感受性が高い;
c.該細胞から配列番号:38のカルボキシル末端グルタミンを含むSNAP−25切断生成物を単離すること;
d.SNAP−25切断生成物を固相支持体に連結された抗SNAP−25抗体に接触させること、
ここで抗SNAP−25抗体は配列番号:38のカルボキシル末端グルタミンを含んでなるエピトープに結合し、抗SNAP−25抗体はインタクトなSNAP−25に関して1×101M−1s−1未満の会合速度定数を有し;そして抗SNAP−25抗体は該エピトープに関して0.450nM未満の平衡解離定数を有する;
e.抗SNAP−25抗体および配列番号:38のカルボキシル末端グルタミンを含むSNAP−25切断生成物を含んでなる抗体−抗原複合体の存在を検出すること;
f.被験試料の代わりに陰性対照試料で工程a−eを行うこと、ここで陰性対照試料は、既知の量のBoNT/A、および抗BoNT/A活性中和抗体を含有しないことが解っている血清を含んでなる;ならびに
g.工程eで検出された抗体−抗原複合体の量を陰性対照試料において検出された抗体−抗原複合体の量と比較すること、
ここで陰性対照試料に比べての工程eにおける抗体−抗原複合体の検出の減少は被験試料における抗BoNT/A活性中和抗体の存在を示す;
の工程を含んでなる、哺乳動物における抗BoNT/A活性中和抗体を検出する方法。 - 既知の量のBoNT/Aが10pMである、請求項1記載の方法。
- 抗体−抗原複合体の存在の検出がサンドイッチイムノアッセイの使用により行われる請求項1または2に記載の方法。
- サンドイッチイムノアッセイが電気化学発光基質または化学発光基質を含む、請求項3記載の方法。
- (i)該抗SNAP−25抗体が、配列番号:95、99および101の少なくとも1つのアミノ酸配列を含む相補性決定領域(CDR)を含む重鎖可変領域、ならびに配列番号:103、108および113の少なくとも1つのアミノ酸配列を含むCDRを含む軽鎖可変領域を含む、または
(ii)該抗SNAP−25抗体が、配列番号:93、96および100の少なくとも1つのアミノ酸配列を含むCDRを含む重鎖可変領域、ならびに配列番号:105、110および115の少なくとも1つのアミノ酸配列を含むCDRを含む軽鎖可変領域を含む、
請求項1〜4いずれかに記載の方法。
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JP2015143689A JP2015143689A (ja) | 2015-08-06 |
JP2015143689A5 true JP2015143689A5 (ja) | 2015-09-17 |
JP6050401B2 JP6050401B2 (ja) | 2016-12-21 |
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JP2012279973A Withdrawn JP2013100304A (ja) | 2008-03-14 | 2012-12-21 | 免疫基盤ボツリヌス毒素血清a型活性アッセイ |
JP2015028972A Active JP6050401B2 (ja) | 2008-03-14 | 2015-02-17 | 免疫基盤ボツリヌス毒素血清a型活性アッセイ |
JP2015137157A Active JP6227597B2 (ja) | 2008-03-14 | 2015-07-08 | 免疫基盤ボツリヌス毒素血清a型活性アッセイ |
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US (11) | US8198034B2 (ja) |
EP (5) | EP3031825B1 (ja) |
JP (5) | JP5766954B2 (ja) |
KR (1) | KR101609894B1 (ja) |
CN (2) | CN102356091A (ja) |
AU (1) | AU2009223161B2 (ja) |
BR (2) | BRPI0908578A2 (ja) |
CA (1) | CA2715033C (ja) |
CO (1) | CO6311001A2 (ja) |
CY (2) | CY1115771T1 (ja) |
DK (2) | DK3031825T3 (ja) |
ES (2) | ES2524312T3 (ja) |
HK (2) | HK1151298A1 (ja) |
HR (1) | HRP20191886T1 (ja) |
HU (1) | HUE046037T2 (ja) |
IL (2) | IL208097A (ja) |
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MX (1) | MX2010010137A (ja) |
MY (2) | MY155049A (ja) |
NZ (1) | NZ588029A (ja) |
PL (2) | PL3031825T3 (ja) |
PT (2) | PT3031825T (ja) |
RU (2) | RU2491293C2 (ja) |
SG (1) | SG2014009112A (ja) |
SI (2) | SI2271670T1 (ja) |
UA (1) | UA102247C2 (ja) |
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