JP4241301B2 - 免疫学的測定用試薬 - Google Patents
免疫学的測定用試薬 Download PDFInfo
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- JP4241301B2 JP4241301B2 JP2003340028A JP2003340028A JP4241301B2 JP 4241301 B2 JP4241301 B2 JP 4241301B2 JP 2003340028 A JP2003340028 A JP 2003340028A JP 2003340028 A JP2003340028 A JP 2003340028A JP 4241301 B2 JP4241301 B2 JP 4241301B2
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- 239000011737 fluorine Substances 0.000 description 1
- 229960000789 guanidine hydrochloride Drugs 0.000 description 1
- NDEMNVPZDAFUKN-UHFFFAOYSA-N guanidine;nitric acid Chemical compound NC(N)=N.O[N+]([O-])=O.O[N+]([O-])=O NDEMNVPZDAFUKN-UHFFFAOYSA-N 0.000 description 1
- PJJJBBJSCAKJQF-UHFFFAOYSA-N guanidinium chloride Chemical compound [Cl-].NC(N)=[NH2+] PJJJBBJSCAKJQF-UHFFFAOYSA-N 0.000 description 1
- ZJYYHGLJYGJLLN-UHFFFAOYSA-N guanidinium thiocyanate Chemical compound SC#N.NC(N)=N ZJYYHGLJYGJLLN-UHFFFAOYSA-N 0.000 description 1
- 229940083094 guanine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- PBOSTUDLECTMNL-UHFFFAOYSA-N lauryl acrylate Chemical compound CCCCCCCCCCCCOC(=O)C=C PBOSTUDLECTMNL-UHFFFAOYSA-N 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- JESXATFQYMPTNL-UHFFFAOYSA-N mono-hydroxyphenyl-ethylene Natural products OC1=CC=CC=C1C=C JESXATFQYMPTNL-UHFFFAOYSA-N 0.000 description 1
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- DQCSJGUXTUJMAA-UHFFFAOYSA-N n,n-dimethylmethanamine;2-hydroxypropyl 2-methylprop-2-enoate;hydrochloride Chemical compound Cl.CN(C)C.CC(O)COC(=O)C(C)=C DQCSJGUXTUJMAA-UHFFFAOYSA-N 0.000 description 1
- YMRDXPCIIDUQFY-UHFFFAOYSA-N n-(2-phenylethyl)prop-2-enamide Chemical compound C=CC(=O)NCCC1=CC=CC=C1 YMRDXPCIIDUQFY-UHFFFAOYSA-N 0.000 description 1
- CEBFLGHPYLIZSC-UHFFFAOYSA-N n-benzyl-2-methylprop-2-enamide Chemical compound CC(=C)C(=O)NCC1=CC=CC=C1 CEBFLGHPYLIZSC-UHFFFAOYSA-N 0.000 description 1
- OHLHOLGYGRKZMU-UHFFFAOYSA-N n-benzylprop-2-enamide Chemical compound C=CC(=O)NCC1=CC=CC=C1 OHLHOLGYGRKZMU-UHFFFAOYSA-N 0.000 description 1
- VQGWOOIHSXNRPW-UHFFFAOYSA-N n-butyl-2-methylprop-2-enamide Chemical compound CCCCNC(=O)C(C)=C VQGWOOIHSXNRPW-UHFFFAOYSA-N 0.000 description 1
- YRVUCYWJQFRCOB-UHFFFAOYSA-N n-butylprop-2-enamide Chemical compound CCCCNC(=O)C=C YRVUCYWJQFRCOB-UHFFFAOYSA-N 0.000 description 1
- HOZLHJIPBBRFGM-UHFFFAOYSA-N n-dodecyl-2-methylprop-2-enamide Chemical compound CCCCCCCCCCCCNC(=O)C(C)=C HOZLHJIPBBRFGM-UHFFFAOYSA-N 0.000 description 1
- XQPVIMDDIXCFFS-UHFFFAOYSA-N n-dodecylprop-2-enamide Chemical compound CCCCCCCCCCCCNC(=O)C=C XQPVIMDDIXCFFS-UHFFFAOYSA-N 0.000 description 1
- JKZQBSUPPNQHTK-UHFFFAOYSA-N n-ethyl-2-methylideneoctanamide Chemical compound CCCCCCC(=C)C(=O)NCC JKZQBSUPPNQHTK-UHFFFAOYSA-N 0.000 description 1
- ZIWDVJPPVMGJGR-UHFFFAOYSA-N n-ethyl-2-methylprop-2-enamide Chemical compound CCNC(=O)C(C)=C ZIWDVJPPVMGJGR-UHFFFAOYSA-N 0.000 description 1
- YPHQUSNPXDGUHL-UHFFFAOYSA-N n-methylprop-2-enamide Chemical compound CNC(=O)C=C YPHQUSNPXDGUHL-UHFFFAOYSA-N 0.000 description 1
- CNWVYEGPPMQTKA-UHFFFAOYSA-N n-octadecylprop-2-enamide Chemical compound CCCCCCCCCCCCCCCCCCNC(=O)C=C CNWVYEGPPMQTKA-UHFFFAOYSA-N 0.000 description 1
- 125000003935 n-pentoxy group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])O* 0.000 description 1
- 238000004848 nephelometry Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229940055729 papain Drugs 0.000 description 1
- 235000019834 papain Nutrition 0.000 description 1
- PLPHXVSTHYOUJO-UHFFFAOYSA-N pent-2-en-2-ylbenzene Chemical compound CCC=C(C)C1=CC=CC=C1 PLPHXVSTHYOUJO-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 229940111202 pepsin Drugs 0.000 description 1
- 239000000137 peptide hydrolase inhibitor Substances 0.000 description 1
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004344 phenylpropyl group Chemical group 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- LPUCYUBAJZSGLI-UHFFFAOYSA-N prop-1-enylbenzene;trimethylazanium;bromide Chemical compound [Br-].C[NH+](C)C.CC=CC1=CC=CC=C1 LPUCYUBAJZSGLI-UHFFFAOYSA-N 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical compound CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- ZNJHFNUEQDVFCJ-UHFFFAOYSA-M sodium;2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid;hydroxide Chemical compound [OH-].[Na+].OCCN1CCN(CCS(O)(=O)=O)CC1 ZNJHFNUEQDVFCJ-UHFFFAOYSA-M 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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- AIUAMYPYEUQVEM-UHFFFAOYSA-N trimethyl(2-prop-2-enoyloxyethyl)azanium Chemical compound C[N+](C)(C)CCOC(=O)C=C AIUAMYPYEUQVEM-UHFFFAOYSA-N 0.000 description 1
- USFMMZYROHDWPJ-UHFFFAOYSA-N trimethyl-[2-(2-methylprop-2-enoyloxy)ethyl]azanium Chemical compound CC(=C)C(=O)OCC[N+](C)(C)C USFMMZYROHDWPJ-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 238000004879 turbidimetry Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54313—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being characterised by its particulate form
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Description
(1)測定対象物質が検体中で遊離体と結合体で存在するものであり、測定対象物質に対するモノクローナル抗体1が固定化されたラテックス1と、抗体1とは測定対象物質に対する認識部位が異なるモノクローナル抗体2が固定化された、ラテックス1とは平均粒径の異なるラテックス2とを含む、免疫学的測定用試薬、
(2)測定対象物質が検体中で遊離体と結合体で存在するものであり、測定対象物質に対するモノクローナル抗体1が固定化されたラテックス1、及び抗体1とは測定対象物質に対する認識部位が異なるモノクローナル抗体2が固定化された、ラテックス1とは平均粒径の異なるラテックス2と、測定対象物質とを反応させ、生じる凝集反応の結果に基づいて測定物質量を求めることを特徴とする、免疫学的測定方法、
並びに
(3)測定対象物質が検体中で遊離体と結合体で存在するものであり、測定対象物質に対するモノクローナル抗体1が固定化されたラテックス1と、抗体1とは測定対象物質に対する認識部位が異なるモノクローナル抗体2が固定化された、ラテックス1とは平均粒径の異なるラテックス2とを含む、免疫学的測定用試薬と、抗原抗体反応の凝集促進剤を含んでなる試薬とからなる免疫学的測定法用試薬キット、に関する。
で表されるモノマーに由来するモノマー単位を有するもの等が挙げられる。
(1)抗ヒトPSA抗体感作(固定化)ラテックス試液の調製
抗ヒトPSAマウスモノクローナル抗体(クローンNo.PSA10)(和光純薬工業(株)社製)0.3mgを含む50mMホウ酸緩衝液(pH7.1)0.5mlと、ポリスチレンラテックス〔平均粒径0.22μm若しくは0.28μm、積水化学工業(株)社製〕を2%(W/V)となるように懸濁させた50mMホウ酸緩衝液(pH7.1)0.5mlとを混合し、25℃で2時間反応させた。その後、遠心分離により分離したラテックスを50mMホウ酸緩衝液(pH7.1)で洗浄し、該ラテックスを濃度が1%(W/V)となるように、BSAを0.5%(W/V)含有する50mMホウ酸緩衝液(pH7.3)中で懸濁し、得られたものを抗ヒトPSA抗体感作ラテックス試液[1]とした。
フリーPSA標準品、コンプレックスPSA標準品(スタンフォード大学製)を1%BSAを含有する10mM リン酸緩衝液(0.85%NaCl含)で希釈し、25ng/mlとした。試薬盲検には上記リン酸緩衝液を使用した。
I.第1試液
0.1%BSA及び1%NaClを含む100mM HEPES−NaOH緩衝液(pH7.0)を第1試液とした。
II.第2試液
(1)で調製した抗ヒトPSA抗体感作ラテックス試液[1]及び[2]をそれぞれ0.1%(W/V)ラテックスに調整し、等量混合したものを第2試液とした。
PSA濃度の測定は自動分析装置(日本電子(株)BM−8形)を用い、以下の測定条件で測定を行った。
試 料 : 5μl
第1試液: 90μl
第2試液: 30μl
測定方法:2ポイントエンド法(34−65)
主波長 :571nm
得られた吸光度(濁度)を表1に示した。尚、表中の値は、得られた吸光度を10000倍にしたもので、ブランク値を減算した値である。また、偏り度γは、フリーPSAの傾き(実測値/理論値)をコンプレックスPSAの傾き(実測値/理論値)で割った値であり、この値が1.0に近いほど、抗体感作ラテックスがフリー体及びコンプレックス体と等モルで結合していることを表す。
2種の抗ヒトPSAマウスモノクローナル抗体(クローンNo.PSA10及びPSA14)(和光純薬工業(株)社製)をそれぞれ0.6mg含む50mMホウ酸緩衝液(pH7.1)0.5mlと、ポリスチレンラテックス〔平均粒径0.22μm、積水化学工業(株)社製〕を2%(W/V)となるように懸濁させた50mMホウ酸緩衝液(pH7.1)0.5mlとを混合し、25℃で2時間反応させた以外は、実施例1と同様の方法でラテックスを調製し、実施例1と同様の測定を行った。得られた結果及び偏り度γを、実施例1と併せて表1に示した。
フリーPSA標準品、コンプレックスPSA標準品(スタンフォード大学製)を1%BSAを含有する10mM リン酸緩衝液(0.85%NaCl)で希釈し、0、5、10、25、50ng/mlとした。
I.第1試薬
実施例1で調製した第1試薬を用いた。
II.第2試薬
実施例1で調製した抗体感作ラテックスのうち、抗体感作ラテックス[1]は平均粒径0.28μmラテックスに感作したものを用い、抗体感作ラテックス[2]は平均粒径0.15μmラテックスに感作したものを用い、実施例1と同様にして混合した。
PSA濃度の測定は自動分析装置(東芝TBA-120FR形)を用い、以下の測定条件で測定を行った。
試 料 : 12μl
第1試液: 120μl
第2試液: 40μl
測定方法:2ポイントエンド法(20−33)
主波長 :572nm
得られた吸光度(濁度)及び偏り度γを表2に示した。尚、表中の吸光度値は、得られた吸光度を10000倍にしたもので、ブランク値を減算した値である。表中の測定値はフリーPSA標準品から作製した検量線を用いて算出した値である。また、得られたフリー体のPSAとコンプレックス体のPSAの吸光度と、各濃度との関係(グラフ)を図1に示した。
比較例1で調製した2種の抗体感作ラテックス(平均粒径0.22μm)を用いた以外は、実施例2と同様の測定を行った。得られた結果及び偏り度γを、実施例2と併せて表2に示した。
Claims (12)
- 前立腺特異抗原の遊離体と結合体の両者と反応性を有するモノクローナル抗体1が固定化されたラテックス1と、抗体1とは前立腺特異抗原に対する認識部位が異なる、前立腺特異抗原の遊離体と結合体の両者と反応性を有するモノクローナル抗体2が固定化された、ラテックス1とは平均粒径の異なるラテックス2とを含む、前立腺特異抗原測定用の免疫学的測定用試薬。
- ラテックス1の平均粒径が0.05〜0.3μmで、ラテックス2の平均粒径が0.18〜0.5μmである、請求項1記載の試薬。
- 前立腺特異抗原の遊離体と結合体の両者と反応性を有するモノクローナル抗体1が固定化されたラテックス1、及び抗体1とは前立腺特異抗原に対する認識部位が異なる、前立腺特異抗原の遊離体と結合体の両者と反応性を有するモノクローナル抗体2が固定化された、ラテックス1とは平均粒径の異なるラテックス2と、前立腺特異抗原とを反応させ、生じる凝集反応の結果に基づいて測定物質量を求めることを特徴とする、前立腺特異抗原の測定方法。
- 凝集反応の結果が濁度の変化である、請求項3記載の方法。
- ラテックス1の平均粒径が0.05〜0.3μmで、ラテックス2の平均粒径が0.18〜0.5μmである、請求項3記載の方法。
- 前立腺特異抗原の遊離体と結合体の両者と反応性を有するモノクローナル抗体1が固定化されたラテックス1と、抗体1とは前立腺特異抗原に対する認識部位が異なる、前立腺特異抗原の遊離体と結合体の両者と反応性を有するモノクローナル抗体2が固定化された、ラテックス1とは平均粒径の異なるラテックス2とを含む、免疫学的測定用試薬と、抗原抗体反応の凝集促進剤を含んでなる試薬とからなる、前立腺特異抗原測定用の免疫学的測定法用試薬キット。
- 抗原抗体反応の凝集促進剤を含んでなる試薬に更に非特異的反応抑制剤を有する請求項8記載のキット。
- 非特異的反応抑制剤が、グアニジン、グアニジン塩またはその誘導体である、請求項9記載のキット。
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KR101325427B1 (ko) * | 2004-12-24 | 2013-11-04 | 세키스이 메디칼 가부시키가이샤 | 항원을 측정하기 위한 시약 및 항원의 측정 방법 |
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WO2012133482A1 (ja) | 2011-03-28 | 2012-10-04 | 積水メディカル株式会社 | Psaの測定方法及びその試薬 |
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US20050069967A1 (en) | 2005-03-31 |
JP2005106609A (ja) | 2005-04-21 |
US7279339B2 (en) | 2007-10-09 |
US20060172351A1 (en) | 2006-08-03 |
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