PMID- 31156142 OWN - NLM STAT- MEDLINE DCOM- 20200330 LR - 20200330 IS - 1875-8622 (Electronic) IS - 1386-0291 (Linking) VI - 73 IP - 4 DP - 2019 TI - Cellular inflammation in pulmonary hypertension: Detailed analysis of lung and right ventricular tissue, circulating immune cells and effects of a dual endothelin receptor antagonist. PG - 497-522 LID - 10.3233/CH-180529 [doi] AB - Growing evidence suggests that inflammation is crucially involved in the pathogenesis of pulmonary hypertension (PH) and consecutive right heart failure. The present study analyzed the inflammatory response in lung and right ventricle in a rat model of PH and evaluated the effects of the dual endothelin receptor antagonist (ERA) Macitentan. PH was induced by monocrotalin (60 mg/kg body weight s.c.) in Sprague-Dawley rats (PH, n = 10) and compared to healthy controls (CON, n = 10) as well as monocrotalin-induced, macitentan-treated rats (THER, n = 10). Detection of Dendritic cells (DCs), regulatory T cells (Tregs) and others as well as RT-PCR based inflammatory gene expression analysis were performed. Circulating DCs and Tregs were quantified by flow cytometry in the rat model and in PH patients (n = 70) compared to controls (n = 52). Inflammatory cells were increased in lung and right ventricular tissue, whereas DCs and Tregs were decreased in blood. Expression of 17 genes in the lung and 20 genes in the right ventricle were relevantly (>2.0 fold) regulated in the PH group. These effects were, at least in part, attenuated in response to Macitentan treatment. In humans as well as rats, immune cells showed significant correlations to clinical, echocardiographic, and haemodynamic parameters. PH is accompanied by a distinct inflammatory response in lung and right but not left ventricular tissue attenuated by Macitentan. Correlations of circulating DCs as well as tissue resident immune cells with parameters reflecting right ventricular function raise the idea of both, promising biomarkers and novel treatment strategies. FAU - Rohm, Ilonka AU - Rohm I AD - Department of Internal Medicine I, Division of Cardiology, Angiology, Pneumology, and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Grun, Katja AU - Grun K AD - Department of Internal Medicine I, Division of Cardiology, Angiology, Pneumology, and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Muller, Linda Marleen AU - Muller LM AD - Department of Internal Medicine I, Division of Cardiology, Angiology, Pneumology, and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Baz, Laura AU - Baz L AD - Department of Internal Medicine I, Division of Cardiology, Angiology, Pneumology, and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Forster, Martin AU - Forster M AD - Department of Internal Medicine I, Division of Cardiology, Angiology, Pneumology, and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Schrepper, Andrea AU - Schrepper A AD - Department of Cardiothoracic Surgery, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Kretzschmar, Daniel AU - Kretzschmar D AD - Department of Internal Medicine I, Division of Cardiology, Angiology, Pneumology, and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Pistulli, Rudin AU - Pistulli R AD - Department of Internal Medicine I, Division of Cardiology, Angiology, Pneumology, and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Yilmaz, Atilla AU - Yilmaz A AD - Department of Internal Medicine II, Division of Cardiology, Elisabeth Klinikum Schmalkalden, Schmalkalden, Germany. FAU - Bauer, Reinhard AU - Bauer R AD - Institute of Molecular Cell Biology, Center for Molecular Biomedicine, Jena University Hospital, Jena, Germany. FAU - Jung, Christian AU - Jung C AD - Department of Internal Medicine, Division of Cardiology, University Hospital Dusseldorf, Heinrich Heine University, Dusseldorf, Germany. FAU - Berndt, Alexander AU - Berndt A AD - Institute of Pathology, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Schulze, P Christian AU - Schulze PC AD - Department of Internal Medicine I, Division of Cardiology, Angiology, Pneumology, and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. FAU - Franz, Marcus AU - Franz M AD - Department of Internal Medicine I, Division of Cardiology, Angiology, Pneumology, and Intensive Medical Care, University Hospital Jena, Friedrich-Schiller-University, Jena, Germany. LA - eng PT - Journal Article PL - Netherlands TA - Clin Hemorheol Microcirc JT - Clinical hemorheology and microcirculation JID - 9709206 RN - 0 (Endothelin A Receptor Antagonists) SB - IM MH - Animals MH - Disease Models, Animal MH - Endothelin A Receptor Antagonists/pharmacology/*therapeutic use MH - Humans MH - Hypertension, Pulmonary/*drug therapy/*physiopathology MH - Lung/*pathology MH - Male MH - Rats MH - Rats, Sprague-Dawley OTO - NOTNLM OT - biomarker OT - dual endothelin receptor antagonist OT - inflammation OT - pulmonary hypertension OT - right heart failure EDAT- 2019/06/04 06:00 MHDA- 2020/03/31 06:00 CRDT- 2019/06/04 06:00 PHST- 2019/06/04 06:00 [pubmed] PHST- 2020/03/31 06:00 [medline] PHST- 2019/06/04 06:00 [entrez] AID - CH180529 [pii] AID - 10.3233/CH-180529 [doi] PST - ppublish SO - Clin Hemorheol Microcirc. 2019;73(4):497-522. doi: 10.3233/CH-180529.