PMID- 22519363 OWN - NLM STAT- MEDLINE DCOM- 20121031 LR - 20151119 IS - 1502-7708 (Electronic) IS - 0036-5521 (Linking) VI - 47 IP - 7 DP - 2012 Jul TI - Serum MMPs 7-9 and their inhibitors during glucocorticoid and anti-TNF-alpha therapy in pediatric inflammatory bowel disease. PG - 785-94 LID - 10.3109/00365521.2012.677954 [doi] AB - OBJECTIVES: In inflammatory bowel diseases (IBD), matrix metalloproteinases (MMPs) participate in intestinal tissue damage and regenerative processes. MMP activity is inhibited by tissue inhibitors of MMPs (TIMPs) and plasma inhibitor, alpha(2)-macroglobulin (alpha2M). We evaluated serum MMPs, their inhibitors and markers of neutrophil activity, myeloperoxidase (MPO) and human neutrophil elastase (HNE), during glucocorticoid (GC) and anti-TNF-alpha therapies in pediatric IBD, in aim to find new tools for assessment of therapeutic response. METHODS: Serum samples were collected before and within a month after the start of therapy with oral GC (n = 19) or anti-TNF-alpha agent (n = 16), and from 32 pediatric control patients. Serum levels of MMP-7, MMP-9, TIMP-1, TIMP-2, alpha2M, MPO, and HNE were analyzed with enzyme-linked immunoabsorbent assays (ELISA) and MMP-8 by immunofluorometric assay (IFMA). Disease activity was monitored with erythrocyte sedimentation rate (ESR), CRP, fecal calprotectin (FC), and physician's global assessment of clinical disease activity (PGA). RESULTS: In IBD, pretreatment serum MMP-7, MMP-8, MMP-9, alpha2M, MPO, and HNE were elevated compared with controls. During GC therapy, MMP-7, TIMP-1, and MMP-7/TIMP-2 decreased (all p < 0.05). During anti-TNF-alpha therapy, MMP-7 decreased (p = 0.063), but remained higher than that after GC therapy (p < 0.05). alpha2M (p < 0.05) and HNE (p < 0.05) increased, the former higher than that in GC-treated patients. The levels of MMPs and their inhibitors did not markedly associate with inflammatory markers in blood or feces. CONCLUSIONS: In pediatric IBD, serum MMP-7 mirrors disease activity, and together with TIMP-1, reflects GC therapy response. alpha(2)-Macroglobulin expression parallels the anti-TNF-alpha response. FAU - Makitalo, Laura AU - Makitalo L AD - Children's Hospital, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland. laura.makitalo@helsinki.fi FAU - Rintamaki, Hanne AU - Rintamaki H FAU - Tervahartiala, Taina AU - Tervahartiala T FAU - Sorsa, Timo AU - Sorsa T FAU - Kolho, Kaija-Leena AU - Kolho KL LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120423 PL - England TA - Scand J Gastroenterol JT - Scandinavian journal of gastroenterology JID - 0060105 RN - 0 (Anti-Inflammatory Agents) RN - 0 (Antibodies, Monoclonal) RN - 0 (Glucocorticoids) RN - 0 (Leukocyte L1 Antigen Complex) RN - 0 (Tissue Inhibitor of Metalloproteinase-1) RN - 0 (Tumor Necrosis Factor-alpha) RN - 0 (alpha-Macroglobulins) RN - 127497-59-0 (Tissue Inhibitor of Metalloproteinase-2) RN - 51333-22-3 (Budesonide) RN - 9007-41-4 (C-Reactive Protein) RN - 9PHQ9Y1OLM (Prednisolone) RN - B72HH48FLU (Infliximab) RN - EC 1.11.1.7 (Peroxidase) RN - EC 3.4.21.37 (Leukocyte Elastase) RN - EC 3.4.24.23 (Matrix Metalloproteinase 7) RN - EC 3.4.24.34 (Matrix Metalloproteinase 8) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) SB - IM MH - Adolescent MH - Anti-Inflammatory Agents/therapeutic use MH - Antibodies, Monoclonal/therapeutic use MH - Blood Sedimentation MH - Budesonide/therapeutic use MH - C-Reactive Protein/metabolism MH - Child MH - Child, Preschool MH - Colitis, Ulcerative/*blood/*drug therapy/pathology MH - Crohn Disease/*blood/*drug therapy/pathology MH - Feces MH - Female MH - Glucocorticoids/*therapeutic use MH - Humans MH - Infliximab MH - Leukocyte Elastase/blood MH - Leukocyte L1 Antigen Complex/metabolism MH - Male MH - Matrix Metalloproteinase 7/blood MH - Matrix Metalloproteinase 8/blood MH - Matrix Metalloproteinase 9/blood MH - Peroxidase/blood MH - Prednisolone/therapeutic use MH - Tissue Inhibitor of Metalloproteinase-1/blood MH - Tissue Inhibitor of Metalloproteinase-2/blood MH - Tumor Necrosis Factor-alpha/*antagonists & inhibitors MH - alpha-Macroglobulins/metabolism EDAT- 2012/04/24 06:00 MHDA- 2012/11/01 06:00 CRDT- 2012/04/24 06:00 PHST- 2012/04/24 06:00 [entrez] PHST- 2012/04/24 06:00 [pubmed] PHST- 2012/11/01 06:00 [medline] AID - 10.3109/00365521.2012.677954 [doi] PST - ppublish SO - Scand J Gastroenterol. 2012 Jul;47(7):785-94. doi: 10.3109/00365521.2012.677954. Epub 2012 Apr 23.