PMID- 33617593 OWN - NLM STAT- MEDLINE DCOM- 20210820 LR - 20210820 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 16 IP - 2 DP - 2021 TI - Association of proangiogenic and profibrotic serum markers with lung function and quality of life in sarcoidosis. PG - e0247197 LID - 10.1371/journal.pone.0247197 [doi] LID - e0247197 AB - BACKGROUND: Sarcoidosis is a systemic inflammatory granulomatous disease, frequently affecting the lung. If left untreated, it may end in lung fibrosis. Proangiogenic and profibrotic vascular endothelial growth factor (VEGF), transforming growth factor (TGF)-beta1, fibroblast growth factor (FGF)-2 and platelet-derived growth factor (PDGF)-AB are a known therapeutical target in pulmonary fibrosing diseases, e.g. IPF, but there is no targeted therapy option for pulmonary fibrosis in sarcoidosis. OBJECTIVES: The aim of our study was to determine the association of these markers' serum levels on lung function and the patients' quality of life in a long-term follow-up of sarcoidosis patients, to provide further information for finding targeted therapy options for pulmonary sarcoidosis. METHODS: 54 patients with sarcoidosis underwent blood sampling, pulmonary function testing and answered the King's Brief Interstitial Lung Disease (K-BILD) questionnaire at baseline and at three-years follow-up. Serum levels of profibrotic and angiogenic markers were assessed at baseline by enzyme-linked immunosorbent assay. RESULTS: Between 2015 and 2018, 54 patients with biopsy proven sarcoidosis were enrolled. Throughout the observation period, there was a significant decrease in the diffusion capacity for carbon monoxide (DLCO) [%] (-6.5504 +/- 13,39, p = 0.001) and forced expiratory volume in one second predicted (FEV1) [%] (-6.07 +/- 12.09, p = 0.001). Patients with greater impairment of forced vital capacity (FVC) did have significantly higher serum levels of VEGF (p = 0.03) and PDGF-AB (p<0.001). The K-BILD questionnaire did not change significantly during follow-up. However, patients with worsening K-BILD scores did have significantly higher serum-levels of PDGF-AB (2.67 pg/ml +/- 0.93 vs. 1.88 pg/ml +/- 0.60, p = 0.004) at baseline, compared to those with unchanged or increasing K-BILD scores. CONCLUSIONS: Among patients with pulmonary sarcoidosis, baseline serum levels of VEGF and PDGF-AB were associated with pulmonary function impairment. Furthermore, PDGF-AB was associated with worsening K-BILD scores. No such association was observed for FGF-2 and TGF-ss1. VEGF and PDGF-AB may be possible prognostic and therapeutic targets in sarcoidosis as a fibrosing ILD beyond IPF. FAU - Biener, L AU - Biener L AUID- ORCID: 0000-0002-8132-7958 AD - Department of Internal Medicine II-Cardiology, Pneumology and Angiology, University Hospital Bonn, Bonn, Germany. FAU - Kruse, J AU - Kruse J AD - Department of Internal Medicine II-Cardiology, Pneumology and Angiology, University Hospital Bonn, Bonn, Germany. FAU - Tuleta, I AU - Tuleta I AD - Department of Cardiology I, University Hospital Muenster, Muenster, Germany. FAU - Pizarro, C AU - Pizarro C AD - Department of Internal Medicine II-Cardiology, Pneumology and Angiology, University Hospital Bonn, Bonn, Germany. FAU - Kreuter, M AU - Kreuter M AD - Centre for Interstitial and Rare Lung Diseases, Pneumology, Thoraxklinik, University of Heidelberg, Germany and German Centre for Lung Research, Heidelberg, Germany. FAU - Birring, S S AU - Birring SS AD - Centre for Human & Applied Physiological Sciences, School of Basic & Medical Biosciences, Faculty of Life Sciences & Medicine, King's College London, London, United Kingdom. FAU - Nickenig, G AU - Nickenig G AD - Department of Internal Medicine II-Cardiology, Pneumology and Angiology, University Hospital Bonn, Bonn, Germany. FAU - Skowasch, D AU - Skowasch D AD - Department of Internal Medicine II-Cardiology, Pneumology and Angiology, University Hospital Bonn, Bonn, Germany. LA - eng PT - Journal Article DEP - 20210222 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Biomarkers) RN - 0 (Platelet-Derived Growth Factor) RN - 0 (Transforming Growth Factor beta) RN - 0 (Vascular Endothelial Growth Factor A) RN - 0 (platelet-derived growth factor AB) RN - 103107-01-3 (Fibroblast Growth Factor 2) SB - IM MH - Adult MH - Aged MH - Biomarkers/blood MH - Female MH - Fibroblast Growth Factor 2/*blood MH - Fibrosis MH - Humans MH - Lung/pathology/physiopathology MH - Male MH - Middle Aged MH - Platelet-Derived Growth Factor/*analysis MH - *Quality of Life MH - Sarcoidosis, Pulmonary/*blood/pathology MH - Transforming Growth Factor beta/*blood MH - Vascular Endothelial Growth Factor A/*blood PMC - PMC7899331 COIS- The authors have declared that no competing interests exist. EDAT- 2021/02/23 06:00 MHDA- 2021/08/21 06:00 PMCR- 2021/02/22 CRDT- 2021/02/22 17:12 PHST- 2020/06/20 00:00 [received] PHST- 2021/02/02 00:00 [accepted] PHST- 2021/02/22 17:12 [entrez] PHST- 2021/02/23 06:00 [pubmed] PHST- 2021/08/21 06:00 [medline] PHST- 2021/02/22 00:00 [pmc-release] AID - PONE-D-20-18702 [pii] AID - 10.1371/journal.pone.0247197 [doi] PST - epublish SO - PLoS One. 2021 Feb 22;16(2):e0247197. doi: 10.1371/journal.pone.0247197. eCollection 2021.