PMID- 11426939 OWN - NLM STAT- MEDLINE DCOM- 20011214 LR - 20081121 IS - 0014-4827 (Print) IS - 0014-4827 (Linking) VI - 267 IP - 2 DP - 2001 Jul 15 TI - CD40L induces matrix-metalloproteinase-9 but not tissue inhibitor of metalloproteinases-1 in cervical carcinoma cells: imbalance between NF-kappaB and STAT3 activation. PG - 205-15 AB - Matrix-metalloproteinases (MMPs) are essentially required for tumor cell invasion and metastasis. Production of precursor enzymes is regulated on transcriptional level, while activation of the pro-enzymes is tightly controlled by posttranscriptional mechanisms. The enzyme activity can be blocked by specific tissue inhibitors of MMPs (TIMPs). In cervical carcinomas strong up-regulation of the type IV collagenase MMP-9 had been demonstrated. We show that activation of CD40, a receptor highly expressed on cervical carcinomas, induces MMP-9 in cervical carcinoma cells, whereas TIMP-1 production inhibiting MMP-9 activity was not affected. This gene induction pattern corresponded to the differential activation of the transcription factor nuclear factor kappaB (NF-kappaB) regulating MMP-9, but not signal transducer and activator of transcription 3 (STAT3), which is involved in TIMP-1 gene regulation. Transient expression of the CD40-inducible NF-kappaB subunit p65 was sufficient for MMP-9 induction. Agents that suppressed CD40-mediated NF-kappaB activation also reduced MMP-9 induction, further supporting an important role of NF-kappaB in CD40-mediated MMP-9 induction. Our data suggest that CD40 expression in carcinoma cells might convert a CD40L-dependent immunological defense signal into a tumor-promoting signal. Selective CD40-mediated signaling through NF-kappaB but not STAT3 correlates to a shift of the balance between MMP-9 and TIMP-1 toward the protease. CI - Copyright 2001 Academic Press. FAU - Smola-Hess, S AU - Smola-Hess S AD - Institute of Virology, University of Cologne, Furst-Puckler-Str. 56, Cologne, 50935, Germany. s.hess@uni-koeln.de FAU - Schnitzler, R AU - Schnitzler R FAU - Hadaschik, D AU - Hadaschik D FAU - Smola, H AU - Smola H FAU - Mauch, C AU - Mauch C FAU - Krieg, T AU - Krieg T FAU - Pfister, H AU - Pfister H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Exp Cell Res JT - Experimental cell research JID - 0373226 RN - 0 (3-(4-methylphenylsulfonyl)-2-propenenitrile) RN - 0 (Antineoplastic Agents) RN - 0 (DNA-Binding Proteins) RN - 0 (NF-kappa B) RN - 0 (Nitriles) RN - 0 (Organic Chemicals) RN - 0 (Protease Inhibitors) RN - 0 (Protein Subunits) RN - 0 (STAT3 Transcription Factor) RN - 0 (STAT3 protein, human) RN - 0 (Sulfones) RN - 0 (Tissue Inhibitor of Metalloproteinases) RN - 0 (Trans-Activators) RN - 147205-72-9 (CD40 Ligand) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) SB - IM MH - Animals MH - Antineoplastic Agents/pharmacology MH - CD40 Ligand/*metabolism MH - DNA-Binding Proteins/*metabolism MH - Female MH - Gene Expression Regulation, Neoplastic MH - Humans MH - Matrix Metalloproteinase 9/genetics/*metabolism MH - NF-kappa B/antagonists & inhibitors/genetics/*metabolism MH - *Nitriles MH - *Organic Chemicals MH - Protease Inhibitors/metabolism MH - Protein Subunits MH - STAT3 Transcription Factor MH - *Sulfones MH - Tissue Inhibitor of Metalloproteinases/genetics/*metabolism MH - Trans-Activators/*metabolism MH - Transcriptional Activation MH - Tumor Cells, Cultured MH - Uterine Cervical Neoplasms/genetics/*metabolism EDAT- 2001/06/28 10:00 MHDA- 2002/01/05 10:01 CRDT- 2001/06/28 10:00 PHST- 2001/06/28 10:00 [pubmed] PHST- 2002/01/05 10:01 [medline] PHST- 2001/06/28 10:00 [entrez] AID - S0014-4827(01)95256-5 [pii] AID - 10.1006/excr.2001.5256 [doi] PST - ppublish SO - Exp Cell Res. 2001 Jul 15;267(2):205-15. doi: 10.1006/excr.2001.5256.