PMID- 2322285 OWN - NLM STAT- MEDLINE DCOM- 19900507 LR - 20190612 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 167 IP - 3 DP - 1990 Mar 30 TI - Tissue inhibitor of metalloproteases (TIMP) is matrix associated in aortic tissue: report of a radioimmunoassay. PG - 898-903 AB - Tissue inhibitor of metalloproteinases (TIMP) is the major inhibitor of collagenase, gelatinase, proteoglycanase, stromelysin, and metalloelastases. An imbalance between proteases and inhibitors has been implicated in numerous disease processes including tumor invasion, rheumatoid arthritis, emphysema, and aortic aneurysm disease. The purpose of this investigation was to develop a polyclonal antibody to recombinant TIMP and establish an immunoassay to measure immunoreactive protein in normal and diseased tissues. A polyclonal antibody was produced in rabbit against recombinant human TIMP which was characterized and used to establish a radioimmunoassay. The assay was used to measure immunoreactive protein in fibroblast conditioned medium, human serum, and aortic extracts. There was more immunoreactive TIMP in matrix associated urea extracts than soluble salt extracts from human aorta, suggesting that TIMP is matrix associated. The sensitivity of the assay enables the specific measurement of this inhibitor in serum, fibroblast culture medium, and tissue extracts. FAU - Brophy, C M AU - Brophy CM AD - Department of Surgery, Yale University School of Medicine, New Haven, CT 06510. FAU - Marks, W H AU - Marks WH FAU - Reilly, J M AU - Reilly JM FAU - Tilson, M D AU - Tilson MD LA - eng GR - HL07964-02/HL/NHLBI NIH HHS/United States GR - R0-1 29325/PHS HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (Glycoproteins) RN - 0 (Immune Sera) RN - 0 (Recombinant Proteins) RN - 0 (Tissue Inhibitor of Metalloproteinases) RN - EC 3.4.24.- (Metalloendopeptidases) SB - IM MH - Aorta, Abdominal/*analysis MH - Cells, Cultured MH - Fibroblasts/analysis MH - Glycoproteins/*analysis/blood/immunology MH - Humans MH - Immune Sera MH - Immunoelectrophoresis MH - Metalloendopeptidases/*antagonists & inhibitors MH - Muscle, Smooth, Vascular/*analysis MH - Radioimmunoassay/methods MH - Recombinant Proteins/analysis MH - Skin/analysis MH - Tissue Inhibitor of Metalloproteinases EDAT- 1990/03/30 00:00 MHDA- 1990/03/30 00:01 CRDT- 1990/03/30 00:00 PHST- 1990/03/30 00:00 [pubmed] PHST- 1990/03/30 00:01 [medline] PHST- 1990/03/30 00:00 [entrez] AID - 0006-291X(90)90608-P [pii] AID - 10.1016/0006-291x(90)90608-p [doi] PST - ppublish SO - Biochem Biophys Res Commun. 1990 Mar 30;167(3):898-903. doi: 10.1016/0006-291x(90)90608-p.