PMID- 24462687 OWN - NLM STAT- MEDLINE DCOM- 20140414 LR - 20140224 IS - 1873-3468 (Electronic) IS - 0014-5793 (Linking) VI - 588 IP - 5 DP - 2014 Mar 3 TI - Decreased IL-10 expression in stefin B-deficient macrophages is regulated by the MAP kinase and STAT-3 signaling pathways. PG - 720-6 LID - S0014-5793(14)00041-6 [pii] LID - 10.1016/j.febslet.2014.01.015 [doi] AB - Innate immune responses are tightly regulated to avoid excessive activation and subsequent inflammatory damage to the host, and interleukin-10 (IL-10) plays a crucial role in preventing inflammation. Stefin B (cystatin B) is an endogenous inhibitor of cysteine proteinases. In stefin B-deficient bone marrow-derived macrophages (BMDMs), we detected an increase in the induction of the LPS-induced pro-inflammatory signal nitric oxide (NO) but decreased IL-10 expression. The phosphorylation of ERK and p38 MAP-kinases was significantly decreased in stefin B-deficient macrophages, as was STAT-3 phosphorylation. These findings show that stefin B influences the expression of anti-inflammatory IL-10 in response to the TLR4 agonist LPS. CI - Copyright (c) 2014 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved. FAU - Maher, Katarina AU - Maher K AD - Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, Ljubljana SI-1000, Slovenia; Jozef Stefan International Postgraduate School, Jamova 39, SI-1000 Ljubljana, Slovenia. FAU - Zavrsnik, Janja AU - Zavrsnik J AD - Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, Ljubljana SI-1000, Slovenia; Jozef Stefan International Postgraduate School, Jamova 39, SI-1000 Ljubljana, Slovenia. FAU - Jeric-Kokelj, Barbara AU - Jeric-Kokelj B AD - Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, Ljubljana SI-1000, Slovenia; Jozef Stefan International Postgraduate School, Jamova 39, SI-1000 Ljubljana, Slovenia. FAU - Vasiljeva, Olga AU - Vasiljeva O AD - Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, Ljubljana SI-1000, Slovenia. FAU - Turk, Boris AU - Turk B AD - Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, Ljubljana SI-1000, Slovenia; Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins (CIPKeBiP), Jamova 39, SI-1000 Ljubljana, Slovenia; Department of Chemistry and Biochemistry, Faculty of Chemistry and Chemical Technology, University of Ljubljana, Cesta v Mestni log 88A, SI-1000 Ljubljana, Slovenia. FAU - Kopitar-Jerala, Natasa AU - Kopitar-Jerala N AD - Department of Biochemistry, Molecular and Structural Biology, Jozef Stefan Institute, Ljubljana SI-1000, Slovenia. Electronic address: natasa.kopitar@ijs.si. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140123 PL - England TA - FEBS Lett JT - FEBS letters JID - 0155157 RN - 0 (IL10 protein, mouse) RN - 0 (Lipopolysaccharides) RN - 0 (STAT3 Transcription Factor) RN - 0 (Stat3 protein, mouse) RN - 130068-27-8 (Interleukin-10) RN - 31C4KY9ESH (Nitric Oxide) RN - 82115-62-6 (Interferon-gamma) RN - 88844-95-5 (Cystatin B) RN - EC 2.7.11.24 (Extracellular Signal-Regulated MAP Kinases) SB - IM MH - Animals MH - Cells, Cultured MH - Cystatin B/*deficiency/genetics MH - Extracellular Signal-Regulated MAP Kinases/metabolism MH - Interferon-gamma/genetics MH - Interleukin-10/genetics/*metabolism MH - Lipopolysaccharides/pharmacology MH - MAP Kinase Signaling System MH - Macrophage Activation MH - Macrophages/immunology/*metabolism MH - Mice, Knockout MH - Nitric Oxide/metabolism MH - STAT3 Transcription Factor/*metabolism MH - Transcriptional Activation/immunology OTO - NOTNLM OT - Cystatin OT - Interleukin-10 OT - Lipopolysaccharide OT - MAP-kinase OT - Macrophage OT - Nitric oxide EDAT- 2014/01/28 06:00 MHDA- 2014/04/15 06:00 CRDT- 2014/01/28 06:00 PHST- 2013/09/16 00:00 [received] PHST- 2014/01/07 00:00 [revised] PHST- 2014/01/08 00:00 [accepted] PHST- 2014/01/28 06:00 [entrez] PHST- 2014/01/28 06:00 [pubmed] PHST- 2014/04/15 06:00 [medline] AID - S0014-5793(14)00041-6 [pii] AID - 10.1016/j.febslet.2014.01.015 [doi] PST - ppublish SO - FEBS Lett. 2014 Mar 3;588(5):720-6. doi: 10.1016/j.febslet.2014.01.015. Epub 2014 Jan 23.