JP2022054122A - フェリチン測定試薬 - Google Patents
フェリチン測定試薬 Download PDFInfo
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- JP2022054122A JP2022054122A JP2020161136A JP2020161136A JP2022054122A JP 2022054122 A JP2022054122 A JP 2022054122A JP 2020161136 A JP2020161136 A JP 2020161136A JP 2020161136 A JP2020161136 A JP 2020161136A JP 2022054122 A JP2022054122 A JP 2022054122A
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- ferritin
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- 238000008416 Ferritin Methods 0.000 title claims abstract description 116
- 102000008857 Ferritin Human genes 0.000 title claims abstract description 108
- 108050000784 Ferritin Proteins 0.000 title claims abstract description 108
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 title abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 63
- 239000012086 standard solution Substances 0.000 claims abstract description 42
- 239000002245 particle Substances 0.000 claims abstract description 30
- 210000004185 liver Anatomy 0.000 claims abstract description 26
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 238000002835 absorbance Methods 0.000 claims abstract description 12
- 230000004520 agglutination Effects 0.000 claims abstract description 12
- 238000011088 calibration curve Methods 0.000 claims abstract description 12
- 239000000243 solution Substances 0.000 claims abstract description 5
- 239000004816 latex Substances 0.000 claims description 23
- 229920000126 latex Polymers 0.000 claims description 23
- 238000012360 testing method Methods 0.000 claims description 10
- 238000004220 aggregation Methods 0.000 claims description 6
- 230000002776 aggregation Effects 0.000 claims description 6
- 230000031700 light absorption Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
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- 210000002966 serum Anatomy 0.000 description 9
- 239000000725 suspension Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 239000000427 antigen Substances 0.000 description 7
- 108091007433 antigens Proteins 0.000 description 7
- 102000036639 antigens Human genes 0.000 description 7
- -1 iron ions Chemical class 0.000 description 7
- 239000007853 buffer solution Substances 0.000 description 6
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- 125000000217 alkyl group Chemical group 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
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- 239000002207 metabolite Substances 0.000 description 3
- 210000002826 placenta Anatomy 0.000 description 3
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- 210000000952 spleen Anatomy 0.000 description 3
- 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
- 206010065973 Iron Overload Diseases 0.000 description 2
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- 238000003127 radioimmunoassay Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000012488 sample solution Substances 0.000 description 2
- 210000002700 urine Anatomy 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000008394 Immunoglobulin Fragments Human genes 0.000 description 1
- 108010021625 Immunoglobulin Fragments Proteins 0.000 description 1
- 208000015710 Iron-Deficiency Anemia Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 238000012951 Remeasurement Methods 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- 125000003275 alpha amino acid group Chemical group 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
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- 238000007865 diluting Methods 0.000 description 1
- 210000003722 extracellular fluid Anatomy 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical group [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 1
- 208000032839 leukemia Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 238000004375 physisorption Methods 0.000 description 1
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- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 238000011002 quantification Methods 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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- 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
- G01N33/536—Immunoassay; Biospecific binding assay; Materials therefor with immune complex formed in liquid phase
-
- 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
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
-
- 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
- G01N33/531—Production of immunochemical test materials
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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
-
- 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
- G01N33/544—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being organic
- G01N33/545—Synthetic resin
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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
- G01N33/96—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood or serum control standard
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/435—Assays involving biological materials from specific organisms or of a specific nature from animals; from humans
- G01N2333/79—Transferrins, e.g. lactoferrins, ovotransferrins
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
しかし、高濃度のフェリチンを正確に測定することは難しかった。
[1] 肝臓由来フェリチンを標準液原料として用いることを特徴とするフェリチン測定試薬。
[2] 免疫凝集法試薬である、[1]のフェリチン測定試薬。
[3] ラテックス凝集法試薬である、[2]のフェリチン測定試薬。
[4] 抗フェリチン抗体を感作した不溶性担体粒子及び肝臓由来フェリチンを原料として用いて調製した標準液を含む、[1]~[3]のいずれかのフェリチン測定試薬。
[5] フェリチン濃度1001~2000ng/mLの間に少なくとも1点以上の濃度を持つ標準液を含む、[1]~[4]のいずれかのフェリチン測定試薬。
[6] 肝臓由来フェリチンを標準液原料として用いることを特徴とするフェリチン測定方法。
[7] 免疫凝集法である、[6]のフェリチン測定方法。
[8] ラテックス凝集法である、[7]のフェリチン測定方法。
[9] [6]~[8]のいすれかのフェリチン測定方法であって、被検試料中のフェリチンと抗フェリチン抗体感作不溶性担体粒子を溶液中で混合し抗原抗体反応による凝集反応に基づく吸光度を測定し、該吸光度を検量線に当てはめることによりフェリチンを定量し、検量線を肝臓由来フェリチンを原料として用いて調製した標準液を用いて作成するフェリチン測定方法。
[10] フェリチン濃度1001~2000ng/mLの間に少なくとも1点以上の濃度を持つ標準液を含む、[6]~[9]のいずれかのフェリチン測定方法。
フェリチンに対する抗体を用いて、以下の通りに免疫凝集法による測定試薬を調製した。
抗フェリチン抗体をポリスチレンラテックス懸濁液1mLに対し0.04mg担持させてなる感作粒子を、緩衝液(トリス、pH8.5)に0.09%となるように懸濁し、ラテックス懸濁液を調製した。
フェリチンを用いて、検量線作成に使用する標準液を調製した。
緩衝液(Hepes、pH7.5)に、肝臓由来フェリチン(SCRIPPS LABORATORIESから市販)を添加し、標準液Aを調製した(実施例1)。比較例1~2として、異なる臓器由来のフェリチンを添加し、標準液B~Cを調製した。
自動分析装置は日立社7180型自動分析装置によりエンドポイント法で自動測定を行った。
前述の試薬を用いて、血清48検体の測定を行った。検体溶液7.0μLに緩衝液(Hepes、pH7.4)100μLを添加し、この混合液を37℃で撹拌混合した。5分間放置後、ラテックス浮遊液50μLを添加し、更に37℃で撹拌混合した。約5分間の凝集反応を吸光度変化量として測定し、標準液A~Cを用いて作成した検量線より各検体のフェリチン濃度を算出した。
反応性の比較を行うため、測光ポイントの異なる2つのパラメータを用いて検体の測定を行った。
低濃度領域(0~1000ng/mL)において、実施例1の結果を示す図1と比較例1~2の結果を示す図2~3を比べると、どの条件も相関係数は0.999と良好であり、フェリチンの臓器由来による違いは見られなかった。
Claims (10)
- 肝臓由来フェリチンを標準液原料として用いることを特徴とするフェリチン測定試薬。
- 免疫凝集法試薬である、請求項1記載のフェリチン測定試薬。
- ラテックス凝集法試薬である、請求項2記載のフェリチン測定試薬。
- 抗フェリチン抗体を感作した不溶性担体粒子及び肝臓由来フェリチンを原料として用いて調製した標準液を含む、請求項1~3のいずれか1項に記載のフェリチン測定試薬。
- フェリチン濃度1001~2000ng/mLの間に少なくとも1点以上の濃度を持つ標準液を含む、請求項1~4に記載のいずれかのフェリチン測定試薬。
- 肝臓由来フェリチンを標準液原料として用いることを特徴とするフェリチン測定方法。
- 免疫凝集法である、請求項6記載のフェリチン測定方法。
- ラテックス凝集法である、請求項7記載のフェリチン測定方法。
- 請求項6~8のいずれか1項に記載のフェリチン測定方法であって、被検試料中のフェリチンと抗フェリチン抗体感作不溶性担体粒子を溶液中で混合し抗原抗体反応による凝集反応に基づく吸光度を測定し、該吸光度を検量線に当てはめることによりフェリチンを定量し、検量線を肝臓由来フェリチンを原料として用いて調製した標準液を用いて作成するフェリチン測定方法。
- フェリチン濃度1001~2000ng/mLの間に少なくとも1点以上の濃度を持つ標準液を含む、請求項6~9のいずれか1項に記載のフェリチン測定方法。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020161136A JP7438910B2 (ja) | 2020-09-25 | 2020-09-25 | フェリチン測定試薬 |
EP21872527.3A EP4206671A4 (en) | 2020-09-25 | 2021-09-24 | FERRITIN MEASUREMENT REAGENT |
KR1020237006691A KR20230074115A (ko) | 2020-09-25 | 2021-09-24 | 페리틴 측정 시약 |
US18/028,324 US20230375559A1 (en) | 2020-09-25 | 2021-09-24 | Ferritin measuring reagent |
CN202180065814.1A CN116209900A (zh) | 2020-09-25 | 2021-09-24 | 铁蛋白测定试剂 |
PCT/JP2021/034934 WO2022065398A1 (ja) | 2020-09-25 | 2021-09-24 | フェリチン測定試薬 |
JP2023132559A JP7483109B2 (ja) | 2020-09-25 | 2023-08-16 | フェリチン測定試薬 |
JP2024020450A JP7483168B2 (ja) | 2020-09-25 | 2024-02-14 | フェリチン測定試薬 |
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JP2024020450A Division JP7483168B2 (ja) | 2020-09-25 | 2024-02-14 | フェリチン測定試薬 |
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JP2023132559A Active JP7483109B2 (ja) | 2020-09-25 | 2023-08-16 | フェリチン測定試薬 |
JP2024020450A Active JP7483168B2 (ja) | 2020-09-25 | 2024-02-14 | フェリチン測定試薬 |
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Country Status (6)
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US (1) | US20230375559A1 (ja) |
EP (1) | EP4206671A4 (ja) |
JP (3) | JP7438910B2 (ja) |
KR (1) | KR20230074115A (ja) |
CN (1) | CN116209900A (ja) |
WO (1) | WO2022065398A1 (ja) |
Cited By (1)
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JP2023144054A (ja) * | 2020-09-25 | 2023-10-06 | デンカ株式会社 | フェリチン測定試薬 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58123459A (ja) * | 1982-01-19 | 1983-07-22 | Mitsui Toatsu Chem Inc | 安定化された固相試薬及びその製造方法 |
JPH01118770A (ja) * | 1987-05-23 | 1989-05-11 | Behringwerke Ag | タンパクの測定方法 |
JP2021047072A (ja) * | 2019-09-18 | 2021-03-25 | 栄研化学株式会社 | フェリチン測定用標準物質およびフェリチン測定方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2748657C3 (de) * | 1977-10-29 | 1980-08-07 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Bestimmung von Ferritin |
US5679532A (en) * | 1995-12-13 | 1997-10-21 | University Technology Corporation | Serum ferritin as a predictor of the acute respiratory distress syndrome |
JPH10115615A (ja) | 1996-10-11 | 1998-05-06 | Sekisui Chem Co Ltd | フェリチンの定量方法及びフェリチン測定用免疫学的キット |
EP2657681A1 (en) | 2012-04-26 | 2013-10-30 | Roche Diagnostics GmbH | Improvement of the sensitivity and the dynamic range of photometric assays by generating multiple calibration curves |
JP2020161136A (ja) | 2019-03-20 | 2020-10-01 | 国立大学法人電気通信大学 | 情報処理装置 |
JP7438910B2 (ja) * | 2020-09-25 | 2024-02-27 | デンカ株式会社 | フェリチン測定試薬 |
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JP2021047072A (ja) * | 2019-09-18 | 2021-03-25 | 栄研化学株式会社 | フェリチン測定用標準物質およびフェリチン測定方法 |
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JP2023144054A (ja) * | 2020-09-25 | 2023-10-06 | デンカ株式会社 | フェリチン測定試薬 |
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JP7483168B2 (ja) | 2024-05-14 |
EP4206671A4 (en) | 2024-03-13 |
JP2023144054A (ja) | 2023-10-06 |
US20230375559A1 (en) | 2023-11-23 |
JP2024040442A (ja) | 2024-03-25 |
EP4206671A1 (en) | 2023-07-05 |
WO2022065398A1 (ja) | 2022-03-31 |
JP7483109B2 (ja) | 2024-05-14 |
JP7438910B2 (ja) | 2024-02-27 |
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CN116209900A (zh) | 2023-06-02 |
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