RRC ID 38673
著者 Zhang J, Fujimoto N, Iwata K, Sakai T, Okada Y, Hayakawa T.
タイトル A one-step sandwich enzyme immunoassay for human matrix metalloproteinase 1 (interstitial collagenase) using monoclonal antibodies.
ジャーナル Clin Chim Acta
Abstract Interstitial collagenase (EC 3.4.24.7, matrix metalloproteinase-1, MMP-1) is synthesized and secreted by many cells, and plays an important role in a wide variety of pathophysiological degradation processes of extracellular matrices. The activity of MMP-1 is regulated by tissue inhibitors of metalloproteinases, TIMP-1 or TIMP-2, which form a non-covalent complex with the active enzyme. We raised monoclonal antibodies against zymogen of MMP-1, proMMP-1 purified from human skin fibroblasts. The antibodies recognized both precursor and active forms of MMP-1, but did not cross-react with 72-kDa and 92-kDa gelatinase/type IV collagenases or stromelysin-1. A specific and sensitive one-step sandwich enzyme immunoassay for human MMP-1 was developed using a solid phase monoclonal antibody and a horseradish peroxidase-labeled monoclonal antibody (Fab'). The assay can be completed within 1 h (30 min for immunoreaction and 15 min for color development) and the sensitivity is 0.12 microgram/l with the linearity between 0.12 and 10 micrograms/l. Active MMP-1 shows 1.3-fold higher absorption at 492 nm than proMMP-1. However, the recognition rate of MMP-1 is decreased to approximately 50% and < 3% for the MMP-1-TIMP-1 and MMP-1-TIMP-2 complex forms, respectively. The MMP-1 levels in human sera from 120 healthy subjects are shown to be in the range of 8.5 +/- 5.2 micrograms/l (mean +/- S.D.) and the levels of 95% of the samples range from 0 to 20 micrograms/l.
巻・号 219(1-2)
ページ 1-14
公開日 1993-10-15
DOI 10.1016/0009-8981(93)90192-7
PII 0009-8981(93)90192-7
PMID 8306449
MeSH Amino Acid Sequence Animals Antibodies, Monoclonal Antibody Specificity Extracellular Matrix / chemistry Extracellular Matrix / immunology Female Humans Immunoblotting Immunoenzyme Techniques Isoenzymes / analysis* Isoenzymes / immunology Metalloendopeptidases / analysis* Metalloendopeptidases / immunology Mice Mice, Inbred BALB C Molecular Sequence Data Oligopeptides / analysis Oligopeptides / immunology
IF 2.615
引用数 96
WOS 分野 MEDICAL LABORATORY TECHNOLOGY
リソース情報
ヒト・動物細胞 NB1RGB(RCB0222)