PMID- 24055043 OWN - NLM STAT- MEDLINE DCOM- 20140912 LR - 20131203 IS - 1879-0305 (Electronic) IS - 1359-6101 (Linking) VI - 24 IP - 6 DP - 2013 Dec TI - ALK1-Smad1/5 signaling pathway in fibrosis development: friend or foe? PG - 523-37 LID - S1359-6101(13)00077-4 [pii] LID - 10.1016/j.cytogfr.2013.08.002 [doi] AB - Fibrosis is a common phenomenon associated with several pathologies, characterized by an excessive extracellular matrix deposition that leads to a progressive organ dysfunction. Thus fibrosis has a relevant role in chronic diseases affecting the kidney, the liver, lung, skin (scleroderma) and joints (arthritis), among others. The pathogenesis of fibrosis in different organs share numerous similarities, being one of them the presence of activated fibroblasts, denominated myofibroblast, which act as the main source of extracellular matrix proteins. Transforming growth factor beta-1 (TGF-beta1) is a profibrotic cytokine that plays a pivotal role in fibrosis. The TGF-beta1/ALK5/Smad3 signaling pathway has been studied in fibrosis extensively. However, an increasing number of studies involving the ALK1/Smad1 pathway in the fibrotic process exist. In this review we offer a perspective of the function of ALK1/Smad1 pathway in renal fibrosis, liver fibrosis, scleroderma and osteoarthritis, suggesting this pathway as a powerful therapeutical target. We also propose several strategies to modulate the activity of this pathway and its consequences in the fibrotic process. CI - Copyright (c) 2013 Elsevier Ltd. All rights reserved. FAU - Munoz-Felix, Jose M AU - Munoz-Felix JM AD - Renal and Cardiovascular Research Unit, Department of Physiology and Pharmacology, University of Salamanca, 37007 Salamanca, Spain; Biomedical Research Institute of Salamanca (IBSAL), 37007 Salamanca, Spain; Institute Queen Sophie for Renal Research, 37007 Salamanca, Spain. FAU - Gonzalez-Nunez, Maria AU - Gonzalez-Nunez M FAU - Lopez-Novoa, Jose M AU - Lopez-Novoa JM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20130913 PL - England TA - Cytokine Growth Factor Rev JT - Cytokine & growth factor reviews JID - 9612306 RN - 0 (Extracellular Matrix Proteins) RN - 0 (Smad1 Protein) RN - 0 (Smad5 Protein) RN - 0 (Transforming Growth Factor beta) RN - EC 2.7.11.30 (ACVRL1 protein, human) RN - EC 2.7.11.30 (Activin Receptors, Type II) SB - IM MH - Activin Receptors, Type II/*metabolism MH - Animals MH - Extracellular Matrix Proteins/metabolism MH - Fibrosis/drug therapy/*metabolism MH - Humans MH - Smad1 Protein/*metabolism MH - Smad5 Protein/*metabolism MH - Transforming Growth Factor beta/metabolism OTO - NOTNLM OT - Cirrhosis OT - Collagen OT - Extracellular matrix OT - Fibrosis OT - Smad EDAT- 2013/09/24 06:00 MHDA- 2014/09/13 06:00 CRDT- 2013/09/24 06:00 PHST- 2013/07/26 00:00 [received] PHST- 2013/08/14 00:00 [accepted] PHST- 2013/09/24 06:00 [entrez] PHST- 2013/09/24 06:00 [pubmed] PHST- 2014/09/13 06:00 [medline] AID - S1359-6101(13)00077-4 [pii] AID - 10.1016/j.cytogfr.2013.08.002 [doi] PST - ppublish SO - Cytokine Growth Factor Rev. 2013 Dec;24(6):523-37. doi: 10.1016/j.cytogfr.2013.08.002. Epub 2013 Sep 13.