PMID- 30984775 OWN - NLM STAT- MEDLINE DCOM- 20190816 LR - 20200225 IS - 2314-6141 (Electronic) IS - 2314-6133 (Print) VI - 2019 DP - 2019 TI - Combined Activation of Guanylate Cyclase and Cyclic AMP in Lung Fibroblasts as a Novel Therapeutic Concept for Lung Fibrosis. PG - 1345402 LID - 10.1155/2019/1345402 [doi] LID - 1345402 AB - Remodelling of the peripheral lung tissue and fibrotic foci are the main pathologies of idiopathic pulmonary fibrosis (IPF), a disease that is difficult to treat. TGF-beta activation of peripheral lung fibroblasts is indicated as the major cause of tissue remodelling in IPF and is resulting in fibroblast hyperplasia and deposition of extracellular matrix. Soluble guanylate cyclase (sGC) stimulators combined with cyclic AMP (cAMP) activators have been reported to reduce proliferation and matrix deposition in other conditions than IPF. Therefore, this drug combination may present a novel therapeutic concept for IPF. This study investigated the effect of BAY 41-2272 and forskolin on remodelling parameters in primary human lung fibroblasts. The study determined TGF-beta induced proliferation by direct cell counts after 3 days; and deposition of collagen type-I, type III, and fibronectin. BAY 41-2272 significantly reduced TGF-beta induced fibroblast proliferation, but did not reduce viability. This inhibitory effect was further supported by forskolin. Both BAY 41-2272 and forskolin alone reduced TGF-beta induced collagen and fibronectin de novo synthesis as well as deposition. This effect was significantly stronger when the two compounds were combined. Furthermore, the TGF-beta induced expression of fibrilar alpha-smooth muscle actin was reduced by BAY 41-2272 and this effect was strengthened by forskolin. In addition, BAY 41-2272 and forskolin reduced TGF-beta induced beta-catenin. All effects of BAY 41-2272 were concentration dependent. The findings suggest that BAY 41-2272 in combination with cAMP stimulation may present a novel therapeutic strategy to reduce tissue remodelling in IPF. FAU - Lambers, Christopher AU - Lambers C AUID- ORCID: 0000-0001-5866-5417 AD - Division of Thoracic Surgery, Department of Surgery, Medical University of Vienna, Austria. FAU - Boehm, Panja M AU - Boehm PM AD - Division of Thoracic Surgery, Department of Surgery, Medical University of Vienna, Austria. FAU - Karabacak, Yasemin AU - Karabacak Y AD - Center for Molecular Biology, University of Vienna, Austria. FAU - Samaha, Eslam AU - Samaha E AD - Division of Respiratory Medicine, Department of Internal Medicine II, Medical University of Vienna, Austria. FAU - Benazzo, Alberto AU - Benazzo A AD - Division of Thoracic Surgery, Department of Surgery, Medical University of Vienna, Austria. FAU - Jaksch, Peter AU - Jaksch P AD - Division of Thoracic Surgery, Department of Surgery, Medical University of Vienna, Austria. FAU - Roth, Michael AU - Roth M AUID- ORCID: 0000-0002-8139-2821 AD - Pulmonary Cell Research, Department of Biomedicine and Pneumology, Department of Internal Medicine, University Hospital and University of Basel, Switzerland. LA - eng PT - Journal Article DEP - 20190307 PL - United States TA - Biomed Res Int JT - BioMed research international JID - 101600173 RN - 0 (3-(4-Amino-5-cyclopropylpyrimidine-2-yl)-1-(2-fluorobenzyl)-1H-pyrazolo(3,4-b)pyridine) RN - 0 (Collagen Type I) RN - 0 (Collagen Type III) RN - 0 (Fibronectins) RN - 0 (Pyrazoles) RN - 0 (Pyridines) RN - 0 (Transforming Growth Factor beta) RN - 0 (beta Catenin) RN - 1F7A44V6OU (Colforsin) RN - E0399OZS9N (Cyclic AMP) RN - EC 4.6.1.2 (Guanylate Cyclase) MH - Cell Proliferation/*drug effects/genetics MH - Cell Survival/drug effects MH - Colforsin/pharmacology MH - Collagen Type I/metabolism MH - Collagen Type III/metabolism MH - Cyclic AMP/genetics MH - Fibroblasts/drug effects/metabolism/pathology MH - Fibronectins/metabolism MH - Gene Expression Regulation/drug effects MH - Guanylate Cyclase/genetics/metabolism MH - Humans MH - Idiopathic Pulmonary Fibrosis/*drug therapy/genetics/pathology MH - Lung/*drug effects/metabolism/pathology MH - Primary Cell Culture MH - Pyrazoles/pharmacology MH - Pyridines/pharmacology MH - Signal Transduction/drug effects MH - Transforming Growth Factor beta/*genetics MH - beta Catenin/genetics PMC - PMC6431482 EDAT- 2019/04/16 06:00 MHDA- 2019/08/17 06:00 PMCR- 2019/03/07 CRDT- 2019/04/16 06:00 PHST- 2018/08/15 00:00 [received] PHST- 2018/12/19 00:00 [revised] PHST- 2019/01/28 00:00 [accepted] PHST- 2019/04/16 06:00 [entrez] PHST- 2019/04/16 06:00 [pubmed] PHST- 2019/08/17 06:00 [medline] PHST- 2019/03/07 00:00 [pmc-release] AID - 10.1155/2019/1345402 [doi] PST - epublish SO - Biomed Res Int. 2019 Mar 7;2019:1345402. doi: 10.1155/2019/1345402. eCollection 2019.