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Wunder F, Stasch JP, Knorr A, Mondritzki T, Brockschnieder D, Becker-Pelster EM, Sandner P, Tinel H, Redlich G, Hartung IV, Vakalopoulos A, Follmann M. Identification and characterization of the new generation soluble guanylate cyclase stimulator BAY-747 designed for the treatment of resistant hypertension. Br J Pharmacol 2023; 180:2500-2513. [PMID: 37170767 DOI: 10.1111/bph.16142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 04/28/2023] [Accepted: 05/04/2023] [Indexed: 05/13/2023] Open
Abstract
BACKGROUND AND PURPOSE First-generation soluble guanylate cyclase (sGC) stimulators have shown clinical benefit in pulmonary hypertension (riociguat) and chronic heart failure (vericiguat). However, given the broad therapeutic opportunities for sGC stimulators, tailored molecules for distinct indications are required. EXPERIMENTAL APPROACH We report the high-throughput screening (HTS)-based discovery of a second generation of sGC stimulators from a novel imidazo[1,2-a]pyridine lead series. An intense medicinal chemistry programme resulted in the discovery of the sGC stimulator BAY 1165747 (BAY-747). The pharmacokinetic profile of BAY-747 was determined in different species, and it was broadly characterized in pharmacological model systems relevant for vasodilatation and hypertension. KEY RESULTS BAY-747 is a highly potent sGC stimulator in vitro. In addition, BAY-747 showed an excellent pharmacokinetic profile with long half-life and low peak-to-trough ratio. BAY-747 was investigated in experimental in vivo models of malignant and resistant hypertension (rHT). In spontaneously hypertensive (SH) rats, BAY-747 caused a dose-related and long-lasting decrease in mean arterial blood pressure (MAP). Oral treatment over 12 days resulted in a persistent decrease. BAY-747 provided additional benefit when dosed on top of losartan, amlodipine or spironolactone and even on top of triple combinations of frequently used antihypertensive drugs. In a new canine model of rHT, BAY-747 caused a dose-related and long-lasting (>6 h) MAP decrease. CONCLUSION AND IMPLICATIONS BAY-747 is a potent, orally available sGC stimulator. BAY-747 shows long-acting pharmacodynamic effects with a very low peak-to-trough ratio. BAY-747 could be a treatment alternative for patients with hypertension, especially those not responding to standard-of-care therapy.
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Affiliation(s)
- Frank Wunder
- Lead Identification & Characterization, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
| | - Johannes-Peter Stasch
- Cardiovascular Research, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
- Institute of Pharmacy, University of Halle, Halle, Germany
| | - Andreas Knorr
- Cardiovascular Research, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
| | - Thomas Mondritzki
- Cardiovascular Research, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
- University of Witten/Herdecke, Witten, Germany
| | - Damian Brockschnieder
- Cardiovascular Research, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
| | | | - Peter Sandner
- Cardiovascular Research, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
- Institute of Pharmacology, Hannover Medical School, Hanover, Germany
| | - Hanna Tinel
- Cardiovascular Research, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
| | - Gorden Redlich
- Pharmacokinetics, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
| | - Ingo V Hartung
- Synthetic Modalities, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
| | | | - Markus Follmann
- Synthetic Modalities, Pharma Research and Development Center, Bayer AG, Wuppertal, Germany
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Vakalopoulos A, Wunder F, Hartung IV, Redlich G, Jautelat R, Buchgraber P, Hassfeld J, Gromov AV, Lindner N, Bierer D, Gries J, Kroh W, Paulsen H, Mittendorf J, Lang D, Becker-Pelster E, Brockschnieder D, Geiss V, Li V, Straub A, Knorr A, Mondritzki T, Trübel H, Raschke M, Schaefer M, Thomas D, Sandner P, Stasch JP, Follmann M. New Generation of sGC Stimulators: Discovery of Imidazo[1,2- a]pyridine Carboxamide BAY 1165747 (BAY-747), a Long-Acting Soluble Guanylate Cyclase Stimulator for the Treatment of Resistant Hypertension. J Med Chem 2023. [PMID: 37040336 DOI: 10.1021/acs.jmedchem.2c02082] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Herein, we describe the identification, chemical optimization, and preclinical characterization of novel soluble guanylate cyclase (sGC) stimulators. Given the very broad therapeutic opportunities for sGC stimulators, new tailored molecules for distinct indications with specific pharmacokinetics, tissue distribution, and physicochemical properties will be required in the future. Here, we report the ultrahigh-throughput (uHTS)-based discovery of a new class of sGC stimulators from an imidazo[1,2-a]pyridine lead series. Through the extensive and staggered optimization of the initial screening hit, liabilities such as potency, metabolic stability, permeation, and solubility could be substantially improved in parallel. These efforts resulted ultimately in the discovery of the new sGC stimulators 22 and 28. It turned out that BAY 1165747 (BAY-747, 28) could be an ideal treatment alternative for patients with hypertension, especially those not responding to standard anti-hypertensive therapy (resistant hypertension). BAY-747 (28) demonstrated sustained hemodynamic effects up to 24 h in phase 1 studies.
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Affiliation(s)
- Alexandros Vakalopoulos
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Frank Wunder
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Ingo V Hartung
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Gorden Redlich
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Rolf Jautelat
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Philipp Buchgraber
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Jorma Hassfeld
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Alexey V Gromov
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Niels Lindner
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Donald Bierer
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Jörg Gries
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Walter Kroh
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Holger Paulsen
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Joachim Mittendorf
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Dieter Lang
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Eva Becker-Pelster
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Damian Brockschnieder
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Volker Geiss
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Volkhart Li
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Alexander Straub
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Andreas Knorr
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Thomas Mondritzki
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
- University of Witten/Herdecke, 58455 Witten, Germany
| | - Hubert Trübel
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
- University of Witten/Herdecke, 58455 Witten, Germany
| | - Marian Raschke
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Martina Schaefer
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
- Lead Discovery, Nuvisan ICB GmbH, Muellerstrasse 178, 13353 Berlin, Germany
| | - Dirk Thomas
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
| | - Peter Sandner
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
- Department of Pharmacology, Hannover Medical School, 30625 Hannover, Germany
| | - Johannes-Peter Stasch
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
- Institute of Pharmacy, Martin Luther University, 06120 Halle, Germany
| | - Markus Follmann
- Pharmaceuticals, Research and Development, Bayer AG, Aprather Weg 18a, 42113 Wuppertal, Germany
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Ferreira WA, Chweih H, Lanaro C, Almeida CB, Brito PL, Gotardo EMF, Torres L, Miguel LI, Franco-Penteado CF, Leonardo FC, Garcia F, Saad STO, Frenette PS, Brockschnieder D, Costa FF, Stasch JP, Sandner P, Conran N. Beneficial Effects of Soluble Guanylyl Cyclase Stimulation and Activation in Sickle Cell Disease Are Amplified by Hydroxyurea: In Vitro and In Vivo Studies. J Pharmacol Exp Ther 2020; 374:469-478. [PMID: 32631869 PMCID: PMC7445859 DOI: 10.1124/jpet.119.264606] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 06/26/2020] [Indexed: 12/13/2022] Open
Abstract
The complex pathophysiology of sickle cell anemia (SCA) involves intravascular hemolytic processes and recurrent vaso-occlusion, driven by chronic vascular inflammation, which result in the disease’s severe clinical complications, including recurrent painful vaso-occlusive episodes. Hydroxyurea, the only drug frequently used for SCA therapy, is a cytostatic agent, although it appears to exert nitric oxide/soluble guanylyl cyclase (sGC) modulating activity. As new drugs that can complement or replace the use of hydroxyurea are sought to further reduce vaso-occlusive episode frequency in SCA, we investigated the effects of the sGC agonists BAY 60-2770 (sGC activator) and BAY 41-2272 (sGC stimulator) in the presence or absence of hydroxyurea on SCA vaso-occlusive mechanisms and cell recruitment both ex vivo and in vivo. These agents significantly reduced stimulated human SCA neutrophil adhesive properties ex vivo in association with the inhibition of surface β2-integrin activation. A single administration of BAY 60-2770 or BAY 41-2272 decreased tumor necrosis factor cytokine–induced leukocyte recruitment in a mouse model of SCA vaso-occlusion. Importantly, the in vivo actions of both agonists were significantly potentiated by the coadministration of hydroxyurea. Erythroid cell fetal hemoglobin (HbF) elevation is also a major goal for SCA therapy. BAY 41-2272 but not BAY 60-2770 at the concentrations employed significantly induced γ-globin gene transcription in association with HbF production in cultured erythroleukemic cells. In conclusion, sGC agonist drugs could represent a promising approach as therapy for SCA, for use either as stand-alone treatments or in combination with hydroxyurea.
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Affiliation(s)
- W A Ferreira
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - H Chweih
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - C Lanaro
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - C B Almeida
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - P L Brito
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - E M F Gotardo
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - L Torres
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - L I Miguel
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - C F Franco-Penteado
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - F C Leonardo
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - F Garcia
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - S T O Saad
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - P S Frenette
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - D Brockschnieder
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - F F Costa
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - J P Stasch
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - P Sandner
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
| | - N Conran
- Hematology Center, School of Medical Sciences, University of Campinas (UNICAMP), Brazil (W.A.F., H.C., C.L., C.B.A., P.L.B., E.M.F.G., L.T., L.I.M., C.F.F.-P., F.C.L., F.G., S.S.T.O., F.F.C., N.C.); Bayer AG, Pharmaceuticals - Drug Discovery, Wuppertal, Germany (D.B., J.P.S., P.S.); Ruth L. and David S Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York (P.S.F.); and Hannover Medical School, Institute of Pharmacology, Hannover, Germany (P.S.)
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4
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Wilck N, Markó L, Balogh A, Kräker K, Herse F, Bartolomaeus H, Szijártó IA, Gollasch M, Reichhart N, Strauss O, Heuser A, Brockschnieder D, Kretschmer A, Lesche R, Sohler F, Stasch JP, Sandner P, Luft FC, Müller DN, Dechend R, Haase N. Nitric oxide-sensitive guanylyl cyclase stimulation improves experimental heart failure with preserved ejection fraction. JCI Insight 2018; 3:96006. [PMID: 29467337 DOI: 10.1172/jci.insight.96006] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 01/11/2018] [Indexed: 12/17/2022] Open
Abstract
Heart failure with preserved ejection fraction (HFpEF) can arise from cardiac and vascular remodeling processes following long-lasting hypertension. Efficacy of common HF therapeutics is unsatisfactory in HFpEF. Evidence suggests that stimulators of the nitric oxide-sensitive soluble guanylyl cyclase (NOsGC) could be of use here. We aimed to characterize the complex cardiovascular effects of NOsGC stimulation using NO-independent stimulator BAY 41-8543 in a double-transgenic rat (dTGR) model of HFpEF. We show a drastically improved survival rate of treated dTGR. We observed less cardiac fibrosis, macrophage infiltration, and gap junction remodeling in treated dTGR. Microarray analysis revealed that treatment of dTGR corrected the dysregulateion of cardiac genes associated with fibrosis, inflammation, apoptosis, oxidative stress, and ion channel function toward an expression profile similar to healthy controls. Treatment reduced systemic blood pressure levels and improved endothelium-dependent vasorelaxation of resistance vessels. Further comprehensive in vivo phenotyping showed an improved diastolic cardiac function, improved hemodynamics, and less susceptibility to ventricular arrhythmias. Short-term BAY 41-8543 application in isolated untreated transgenic hearts with structural remodeling significantly reduced the occurrence of ventricular arrhythmias, suggesting a direct nongenomic role of NOsGC stimulation on excitation. Thus, NOsGC stimulation was highly effective in improving several HFpEF facets in this animal model, underscoring its potential value for patients.
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Affiliation(s)
- Nicola Wilck
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany.,Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and BIH, Berlin, Germany
| | - Lajos Markó
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany.,Max-Delbrück Center for Molecular Medicine, Berlin, Germany
| | - András Balogh
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany.,Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and BIH, Berlin, Germany
| | - Kristin Kräker
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany.,Max-Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Florian Herse
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,Max-Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Hendrik Bartolomaeus
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany
| | - István A Szijártó
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and BIH, Berlin, Germany
| | - Maik Gollasch
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany.,Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and BIH, Berlin, Germany
| | - Nadine Reichhart
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and BIH, Berlin, Germany
| | - Olaf Strauss
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and BIH, Berlin, Germany
| | - Arnd Heuser
- Max-Delbrück Center for Molecular Medicine, Berlin, Germany
| | | | | | - Ralf Lesche
- Bayer AG, Drug Discovery, Wuppertal & Berlin, Germany
| | | | | | - Peter Sandner
- Bayer AG, Drug Discovery, Wuppertal & Berlin, Germany
| | - Friedrich C Luft
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and BIH, Berlin, Germany.,Max-Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Dominik N Müller
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany.,Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and BIH, Berlin, Germany.,Max-Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Ralf Dechend
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and BIH, Berlin, Germany.,HELIOS-Klinikum, Berlin, Germany
| | - Nadine Haase
- Experimental and Clinical Research Center, Max-Delbrück Center for Molecular Medicine and the Charité Medical Faculty, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin, Germany.,Max-Delbrück Center for Molecular Medicine, Berlin, Germany
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Todd Milne G, Sandner P, Lincoln KA, Harrison PC, Chen H, Wang H, Clifford H, Qian HS, Wong D, Sarko C, Fryer R, Richman J, Reinhart GA, Boustany CM, Pullen SS, Andresen H, Moltzau LR, Cataliotti A, Levy FO, Lukowski R, Frankenreiter S, Friebe A, Calamaras T, Baumgartner R, McLaughlin A, Aronovitz M, Baur W, Wang GR, Kapur N, Karas R, Blanton R, Hell S, Waldman SA, Lin JE, Colon-Gonzalez F, Kim GW, Blomain ES, Merlino D, Snook A, Erdmann J, Wobst J, Kessler T, Schunkert H, Walter U, Pagel O, Walter E, Gambaryan S, Smolenski A, Jurk K, Zahedi R, Klinger JR, Benza RL, Corris PA, Langleben D, Naeije R, Simonneau G, Meier C, Colorado P, Chang MK, Busse D, Hoeper MM, Masferrer JL, Jacobson S, Liu G, Sarno R, Bernier S, Zhang P, Todd Milne G, Flores-Costa R, Currie M, Hall K, Möhrle D, Reimann K, Wolter S, Wolters M, Mergia E, Eichert N, Geisler HS, Ruth P, Friebe A, Feil R, Zimmermann U, Koesling D, Knipper M, Rüttiger L, Tanaka Y, Okamoto A, Nojiri T, Kumazoe M, Tokudome T, Miura K, Hino J, Hosoda H, Miyazato M, Kangawa K, Kapil V, Ahluwalia A, Paolocci N, Eaton P, Campbell JC, Henning P, Franz E, Sankaran B, Herberg FW, Kim C, Wittwer M, Luo Q, Kaila V, Dames SA, Tobin A, Alam M, Rudyk O, Krasemann S, Hartmann K, Prysyazhna O, Zhang M, Zhao L, Weiss A, Schermuly R, Eaton P, Moyes AJ, Chu SM, Baliga RS, Hobbs AJ, Michalakis S, Mühlfriedel R, Schön C, Fischer DM, Wilhelm B, Zobor D, Kohl S, Peters T, Zrenner E, Bartz-Schmidt KU, Ueffing M, Wissinger B, Seeliger M, Biel M, Ranek MJ, Kokkonen KM, Lee DI, Holewinski RJ, Agrawal V, Virus C, Stevens DA, Sasaki M, Zhang H, Mannion MM, Rainer PP, Page RC, Schisler JC, Van Eyk JE, Willis MS, Kass DA, Zaccolo M, Russwurm M, Giesen J, Russwurm C, Füchtbauer EM, Koesling D, Bork NI, Nikolaev VO, Agulló L, Floor M, Villà-Freixa J, Manfra O, Calamera G, Surdo NC, Meier S, Froese A, Nikolaev VO, Zaccolo M, Levy FO, Andressen KW, Aue A, Schwiering F, Groneberg D, Friebe A, Bajraktari G, Burhenne J, Haefeli WE, Weiss J, Beck K, Voussen B, Vincent A, Parsons SP, Huizinga JD, Friebe A, Mónica FZ, Seto E, Murad F, Bian K, Burgoyne JR, Prysyazhna O, Richards D, Eaton P, Calamera G, Bjørnerem M, Ulsund AH, Kim JJ, Kim C, Levy FO, Andressen KW, Donzelli S, Goetz M, Schmidt K, Wolters M, Stathopoulou K, Prysyazhna O, Scotcher J, Dees C, Subramanian H, Butt E, Kamynina A, Bruce King S, Nikolaev VO, de Witt C, Leichert LI, Feil R, Eaton P, Cuello F, Dobrowinski H, Lehners M, Schmidt MPH, Feil R, Feil S, Wen L, Wolters M, Thunemann M, Schmidt K, Olbrich M, Langer H, Gawaz M, Friebe A, de Wit C, Feil R, Franz E, Kim JJ, Bertinetti D, Kim C, Herberg FW, Ghofrani HA, Grimminger F, Grünig E, Huang Y, Jansa P, Jing ZC, Kilpatrick D, Langleben D, Rosenkranz S, Menezes F, Fritsch A, Nikkho S, Frey R, Humbert M, Groneberg D, Aue A, Schwiering F, Friebe A, Harloff M, Reinders J, Schlossmann J, Jung J, Wales JA, Chen CY, Breci L, Weichsel A, Bernier SG, Solinga R, Sheppeck JE, Renhowe PA, Montfort WR, Qin L, Sung YJ, Casteel D, Kim C, Kollau A, Neubauer A, Schrammel A, Russwurm M, Koesling D, Mayer B, Kumazoe M, Takai M, Takeuchi C, Kadomatsu M, Hiroi S, Takamatsu K, Nojiri T, Kangawa K, Tachibana H, Opelt M, Eroglu E, Waldeck-Weiermair M, Russwurm M, Koesling D, Malli R, Graier WF, Fassett JT, Schrammel A, Mayer B, Sollie SJ, Moltzau LR, Hernandez-Valladares M, Berven F, Levy FO, Andressen KW, Nojiri T, Tokudome T, Kumazoe M, Arai M, Suzuki Y, Miura K, Hino J, Hosoda H, Miyazato M, Okumura M, Kawaoka S, Kangawa K, Peters S, Schmidt H, Selin Kenet B, Nies SH, Frank K, Wen L, Rathjen FG, Feil R, Petrova ON, Lamarre I, Négrerie M, Robinson JW, Egbert JR, Davydova J, Jaffe LA, Potter LR, Robinson JW, Blixt N, Shuhaibar LC, Warren GL, Mansky KC, Jaffe LA, Potter LR, Romoli S, Bauch T, Dröbner K, Eitner F, Ruppert M, Radovits T, Korkmaz-Icöz S, Li S, Hegedűs P, Loganathan S, Németh BT, Oláh A, Mátyás C, Benke K, Merkely B, Karck M, Szabó G, Scheib U, Broser M, Mukherjee S, Stehfest K, Gee CE, Körschen HG, Oertner TG, Hegemann P, Schmidt H, Dickey DM, Dumoulin A, Kühn R, Jaffe L, Potter LR, Rathjen FG, Schobesberger S, Wright P, Poulet C, Mansfield C, Friebe A, Harding SE, Nikolaev VO, Gorelik J, Kollau A, Opelt M, Wölkart G, Gorren ACF, Russwurm M, Koesling D, Schrammel A, Mayer B, Schwaerzer GK, Casteel DE, Dalton ND, Gu Y, Zhuang S, Milewicz DM, Peterson KL, Pilz R, Schwiering F, Aue A, Groneberg D, Friebe A, Argyriou AI, Makrynitsa G, Alexandropoulos II, Stamopoulou A, Bantzi M, Giannis A, Topouzis S, Papapetropoulos A, Spyroulias GA, Stuehr DJ, Ghosh A, Dai Y, Misra S, Tchernychev B, Jung J, Liu G, Silos-Santiago I, Hannig G, Dao VTV, Deile M, Nedvetsky PI, Güldner A, Ibarra-Alvarado C, Gödecke A, Schmidt HHHW, Vachaviolos A, Gerling A, Thunemann M, Lutz SZ, Häring HU, Krüger MA, Pichler BJ, Shipston MJ, Feil S, Feil R, Vandenwijngaert S, Ledsky CD, Agha O, Hu D, Domian IJ, Buys ES, Newton-Cheh C, Bloch DB, Voussen B, Beck K, Mauro N, Keppler J, Friebe A, Ferreira WA, Chweih H, Brito PL, Almeida CB, Penteado CFF, Saad SSO, Costa FF, Frenette PS, Brockschnieder D, Stasch JP, Sandner P, Conran N, Zimmer DP, Tobin J, Shea C, Sarno R, Long K, Jacobson S, Tang K, Germano P, Wakefield J, Banijamali A, Im GYJ, Sheppeck JE, Profy AT, Todd Milne G, Currie MG, Masferrer JL. Abstracts from the 8th International Conference on cGMP Generators, Effectors and Therapeutic Implications : Bamberg, Germany. 23-25 June, 2017. BMC Pharmacol Toxicol 2017; 18:64. [PMID: 29035170 PMCID: PMC5667593 DOI: 10.1186/s40360-017-0170-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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6
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Lee BS, Chu SY, Kwon HR, Park C, Sirion U, Brockschnieder D, Dyrks T, Oh SJ, Kim JS, Chi DY. Synthesis and evaluation of 6-(3-[(18)F]fluoro-2-hydroxypropyl)-substituted 2-pyridylbenzothiophenes and 2-pyridylbenzothiazoles as potential PET tracers for imaging Aβ plaques. Bioorg Med Chem 2016; 24:2043-52. [PMID: 27032891 DOI: 10.1016/j.bmc.2016.03.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 03/17/2016] [Accepted: 03/18/2016] [Indexed: 11/18/2022]
Abstract
3-[(18)F]Fluoro-2-hydroxypropyl substituted compounds were synthesized and evaluated as novel (18)F-labeled PET tracers for imaging Aβ plaque in a living brain. All compounds exhibited high binding affinities toward the synthetic Aβ1-42 aggregate and/or Alzheimer's disease brain homogenate. In the microPET study with normal mice, the 3-[(18)F]fluoro-2-hydroxypropyl substituted compounds resulted in fast brain washout by reducing the lipophilicities of the compounds. Intriguingly, (S)-configured PET tracers, (S)-[(18)F]1b and (S)-[(18)F]1c, exhibited a 2.8 and 4.0-fold faster brain washout rate at a peak/30 min in the mouse brain than the corresponding (R)-configured PET tracers despite there being no meaningful difference in binding affinities toward Aβ plaque. A further evaluation of (S)-[(18)F]1c with healthy rhesus monkeys also revealed excellent clearance from the frontal cortex with ratios of 7.0, 16.0, 30.0 and 49.0 at a peak/30, 60, 90, and 120 min, respectively. These results suggest that (S)-[(18)F]1c may be a potential PET tracer for imaging Aβ plaque in a living brain.
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Affiliation(s)
- Byoung Se Lee
- Research Institute of Labeling, FutureChem Co., Ltd, Seoul 04782, Republic of Korea
| | - So Young Chu
- Research Institute of Labeling, FutureChem Co., Ltd, Seoul 04782, Republic of Korea
| | - Hye Rim Kwon
- Department of Chemistry, Sogang University, Seoul 04107, Republic of Korea
| | - Chansoo Park
- Research Institute of Labeling, FutureChem Co., Ltd, Seoul 04782, Republic of Korea
| | - Uthaiwan Sirion
- Department of Chemistry, Sogang University, Seoul 04107, Republic of Korea
| | | | - Thomas Dyrks
- Global Drug Discovery-Molecular Imaging, Bayer Healthcare AG, 13353 Berlin, Germany
| | - Seung Jun Oh
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul 05505, Republic of Korea
| | - Jae Seung Kim
- Department of Nuclear Medicine, Asan Medical Center, University of Ulsan, College of Medicine, Seoul 05505, Republic of Korea
| | - Dae Yoon Chi
- Research Institute of Labeling, FutureChem Co., Ltd, Seoul 04782, Republic of Korea; Department of Chemistry, Sogang University, Seoul 04107, Republic of Korea.
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7
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Haase N, Wilck N, Marko L, Balogh A, Heuser A, Brockschnieder D, Kretschmer A, Stasch JP, Müller N, Dechend R. The sGC stimulator BAY 41-8543 in a rat model of hypertension-induced heart failure. BMC Pharmacol Toxicol 2015. [PMCID: PMC4565162 DOI: 10.1186/2050-6511-16-s1-a57] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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8
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Barucker C, Sommer A, Beckmann G, Eravci M, Harmeier A, Schipke CG, Brockschnieder D, Dyrks T, Althoff V, Fraser PE, Hazrati LN, George-Hyslop PS, Breitner JCS, Peters O, Multhaup G. Alzheimer amyloid peptide aβ42 regulates gene expression of transcription and growth factors. J Alzheimers Dis 2015; 44:613-24. [PMID: 25318543 DOI: 10.3233/jad-141902] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The pathogenesis of Alzheimer's disease (AD) is characterized by the aggregation of amyloid-β (Aβ) peptides leading to deposition of senile plaques and a progressive decline of cognitive functions, which currently remains the main criterion for its diagnosis. Robust biomarkers for AD do not yet exist, although changes in the cerebrospinal fluid levels of tau and Aβ represent promising candidates in addition to brain imaging and genetic risk profiling. Although concentrations of soluble Aβ42 correlate with symptoms of AD, less is known about the biological activities of Aβ peptides which are generated from the amyloid-β protein precursor. An unbiased DNA microarray study showed that Aβ42, at sub-lethal concentrations, specifically increases expression of several genes in neuroblastoma cells, notably the insulin-like growth factor binding proteins 3 and 5 (IGFBP3/5), the transcription regulator inhibitor of DNA binding, and the transcription factor Lim only domain protein 4. Using qRT-PCR, we confirmed that mRNA levels of the identified candidate genes were exclusively increased by the potentially neurotoxic Aβ42 wild-type peptide, as both the less toxic Aβ40 and a non-toxic substitution peptide Aβ42 G33A did not affect mRNA levels. In vivo immunohistochemistry revealed a corresponding increase in both hippocampal and cortical IGFBP5 expression in an AD mouse model. Proteomic analyses of human AD cerebrospinal fluid displayed increased in vivo concentrations of IGFBPs. IGFBPs and transcription factors, as identified here, are modulated by soluble Aβ42 and may represent useful early biomarkers.
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Affiliation(s)
- Christian Barucker
- Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, Berlin, Germany Department of Pharmacology & Therapeutics, McGill University, Montreal, QC, Canada
| | - Anette Sommer
- Bayer Pharma AG, Global Drug Discovery, Berlin, Germany
| | | | - Murat Eravci
- Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, Berlin, Germany
| | - Anja Harmeier
- Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, Berlin, Germany
| | - Carola G Schipke
- Department of Psychiatry and Psychotherapy, Campus Benjamin Franklin, Charite-Universitätsmedizin Berlin, Berlin, Germany
| | | | - Thomas Dyrks
- Bayer Pharma AG, Global Drug Discovery, Berlin, Germany
| | - Veit Althoff
- Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, Berlin, Germany
| | - Paul E Fraser
- Tanz Centre for Research in Neurodegenerative Diseases, Departments of Medicine and Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - Lili-Naz Hazrati
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Peter St George-Hyslop
- Tanz Centre for Research in Neurodegenerative Diseases, Departments of Medicine and Medical Biophysics, University of Toronto, Toronto, ON, Canada
| | - John C S Breitner
- Douglas Mental Health University Institute, Verdun, QC, Canada Department of Psychiatry, McGill University Faculty of Medicine, Montreal, QC, Canada
| | - Oliver Peters
- Department of Psychiatry and Psychotherapy, Campus Benjamin Franklin, Charite-Universitätsmedizin Berlin, Berlin, Germany
| | - Gerhard Multhaup
- Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, Berlin, Germany Department of Pharmacology & Therapeutics, McGill University, Montreal, QC, Canada
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Claude C, Mougenot N, Bechaux J, Hadri L, Brockschnieder D, Clergue M, Atassi F, Lompré AM, Hulot JS. Inhalable delivery of AAV-based MRP4/ABCC4 silencing RNA prevents monocrotaline-induced pulmonary hypertension. Mol Ther Methods Clin Dev 2015; 2:14065. [PMID: 26052533 PMCID: PMC4449024 DOI: 10.1038/mtm.2014.65] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 10/22/2014] [Accepted: 10/28/2014] [Indexed: 12/23/2022]
Abstract
The ATP-binding cassette transporter MRP4 (encoded by ABCC4) regulates membrane cyclic nucleotides concentrations in arterial cells including smooth muscle cells. MRP4/ABCC4 deficient mice display a reduction in smooth muscle cells proliferation and a prevention of pulmonary hypertension in response to hypoxia. We aimed to study gene transfer of a MRP4/ABCC4 silencing RNA via intratracheal delivery of aerosolized adeno-associated virus 1 (AAV1.shMRP4 or AAV1.control) in a monocrotaline-induced model of pulmonary hypertension in rats. Gene transfer was performed at the time of monocrotaline administration and the effect on the development of pulmonary vascular remodeling was assessed 35 days later. AAV1.shMRP4 dose-dependently reduced right ventricular systolic pressure and hypertrophy with a significant reduction with the higher doses (i.e., >1011 DRP/animal) as compared to AAV1.control. The higher dose of AAV1.shMRP4 was also associated with a significant reduction in distal pulmonary arteries remodeling. AAV1.shMRP4 was finally associated with a reduction in the expression of ANF, a marker of cardiac hypertrophy. Collectively, these results support a therapeutic potential for downregulation of MRP4 for the treatment of pulmonary artery hypertension.
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Affiliation(s)
- Caroline Claude
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1166, ICAN , Paris, France ; INSERM, UMR_S 1166, ICAN , Paris, France
| | - Nathalie Mougenot
- Sorbonne Universités, UPMC Univ Paris 06, PECMV core , Paris, France
| | - Julia Bechaux
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1166, ICAN , Paris, France ; INSERM, UMR_S 1166, ICAN , Paris, France
| | - Lahouaria Hadri
- Cardiovascular Research Center, Icahn School of Medicine , New York, New York, USA
| | | | - Michel Clergue
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1166, ICAN , Paris, France ; INSERM, UMR_S 1166, ICAN , Paris, France
| | - Fabrice Atassi
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1166, ICAN , Paris, France ; INSERM, UMR_S 1166, ICAN , Paris, France
| | - Anne-Marie Lompré
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1166, ICAN , Paris, France ; INSERM, UMR_S 1166, ICAN , Paris, France
| | - Jean-Sébastien Hulot
- Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1166, ICAN , Paris, France ; INSERM, UMR_S 1166, ICAN , Paris, France ; AP-HP, Hôpital Pitié-Salpêtrière, Department of Pharmacology & Institute of CardioMetabolism and Nutrition , Paris, France
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Brockschnieder D, Schmitt-Willich H, Heinrich T, Varrone A, Gulyás B, Toth M, Andersson J, Boemer U, Krause S, Friebe M, Dinkelborg L, Halldin C, Dyrks T. Preclinical characterization of a novel class of 18F-labeled PET tracers for amyloid-β. J Nucl Med 2012; 53:1794-801. [PMID: 23008501 DOI: 10.2967/jnumed.112.104810] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
UNLABELLED Imaging of amyloid-β (Aβ) plaques by PET is more and more integrated into concepts for Alzheimer disease (AD) diagnosis and drug development. The objective of this study was to find novel chemical entities that can be transformed into (18)F-labeled Aβ tracers with favorable brain washout kinetics and low background signal. METHODS High-throughput screening of a large chemical library was used to identify new ligands for fibrillar aggregates of Aβ(1-42) peptide. Thirty-two fluorinated derivatives were synthesized and tested for their affinity toward AD brain homogenate. Twelve ligands have been radiolabeled with (18)F. The pharmacokinetic properties of the radioligands were investigated in mouse and monkey biodistribution studies. Binding characteristics were determined by autoradiography of AD brain sections in vitro and using amyloid precursor protein transgenic mice in vivo. RESULTS The systematic search for Aβ imaging agents revealed several fluorinated derivatives with nanomolar affinity for Aβ. The fluoropyridyl derivative BAY 1008472 showed a high initial brain uptake (6.45 percentage injected dose per gram at 2 min) and rapid brain washout (ratio of percentage of injected dose per gram of tissue at 2 and 30 min after injection, 9.2) in mice. PET studies of healthy rhesus monkeys confirmed the high initial brain uptake of BAY 1008472 (2.52 standardized uptake value at peak) and a fast elimination of total radioactivity from gray and white matter areas (ratio of standardized uptake value at peak uptake and 60 min 11.0). In autoradiographic analysis, BAY 1008472 selectively detected Aβ deposits in human AD brain sections with high contrast and did not bind to τ- or α-synuclein pathologies. Finally, ex vivo autoradiography of brain sections from amyloid precursor protein-transgenic mice confirmed that BAY 1008472 is indeed suitable for the in vivo detection of Aβ plaques. CONCLUSION A new chemical class of Aβ tracers has been identified by high-throughput screening. The fluoropyridyl derivative BAY 1008472 shows a favorable preclinical profile including low background binding in gray and white matter. These properties might qualify this new tracer, in particular, to detect subtle amounts or changes of Aβ burden in presymptomatic AD and during therapy.
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Golan N, Adamsky K, Kartvelishvily E, Brockschnieder D, Möbius W, Spiegel I, Roth AD, Thomson CE, Rechavi G, Peles E. Identification of Tmem10/Opalin as an oligodendrocyte enriched gene using expression profiling combined with genetic cell ablation. Glia 2008; 56:1176-86. [PMID: 18571792 DOI: 10.1002/glia.20688] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Oligodendrocytes form an insulating multilamellar structure of compact myelin around axons, which allows efficient and rapid propagation of action potentials. However, little is known about the molecular mechanisms operating at the onset of myelination and during maintenance of the myelin sheath in the adult. Here we use a genetic cell ablation approach combined with Affymetrix GeneChip microarrays to identify a number of oligodendrocyte-enriched genes that may play a key role in myelination. One of the "oligogenes" we cloned using this approach is Tmem10/Opalin, which encodes for a novel transmembrane glycoprotein. In situ hybridization and RT-PCR analysis revealed that Tmem10 is selectively expressed by oligodendrocytes and that its expression is induced during their differentiation. Developmental immunofluorescence analysis demonstrated that Tmem10 starts to be expressed in the white matter tracks of the cerebellum and the corpus callosum at the onset of myelination after the appearance of other myelin genes such as MBP. In contrast to the spinal cord and brain, Tmem10 was not detected in myelinating Schwann cells, indicating that it is a CNS-specific myelin protein. In mature oligodendrocytes, Tmem10 was present at the cell soma and processes, as well as along myelinated internodes, where it was occasionally concentrated at the paranodes. In myelinating spinal cord cultures, Tmem10 was detected in MBP-positive cellular processes that were aligned with underlying axons before myelination commenced. These results suggest a possible role of Tmem10 in oligodendrocyte differentiation and CNS myelination.
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Affiliation(s)
- Neev Golan
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
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Birnberg T, Bar-On L, Sapoznikov A, Caton ML, Cervantes-Barragán L, Makia D, Krauthgamer R, Brenner O, Ludewig B, Brockschnieder D, Riethmacher D, Reizis B, Jung S. Lack of conventional dendritic cells is compatible with normal development and T cell homeostasis, but causes myeloid proliferative syndrome. Immunity 2008; 29:986-97. [PMID: 19062318 DOI: 10.1016/j.immuni.2008.10.012] [Citation(s) in RCA: 186] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2008] [Revised: 07/31/2008] [Accepted: 10/13/2008] [Indexed: 12/23/2022]
Abstract
Dendritic cells are critically involved in the promotion and regulation of T cell responses. Here, we report a mouse strain that lacks conventional CD11c(hi) dendritic cells (cDCs) because of constitutive cell-type specific expression of a suicide gene. As expected, cDC-less mice failed to mount effective T cell responses resulting in impaired viral clearance. In contrast, neither thymic negative selection nor T regulatory cell generation or T cell homeostasis were markedly affected. Unexpectedly, cDC-less mice developed a progressive myeloproliferative disorder characterized by prominent extramedullary hematopoiesis and increased serum amounts of the cytokine Flt3 ligand. Our data identify a critical role of cDCs in the control of steady-state hematopoiesis, revealing a feedback loop that links peripheral cDCs to myelogenesis through soluble growth factors, such as Flt3 ligand.
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Affiliation(s)
- Tal Birnberg
- Department of Immunology, The Weizmann Institute of Science, Rehovot 76100, Israel
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Brockschnieder D, Pechmann Y, Sonnenberg-Riethmacher E, Riethmacher D. An improved mouse line for Cre-induced cell ablation due to diphtheria toxin A, expressed from the Rosa26 locus. Genesis 2006; 44:322-7. [PMID: 16791847 DOI: 10.1002/dvg.20218] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The means to specifically ablate cells inside of a living organism have recently been improved and facilitated by stable mouse lines, carrying conditional expression constructs for diphtheria toxin (DT) or diphtheria toxin receptor, that could be activated upon Cre-mediated recombination or the application of diphtheria toxin, respectively. We have lately described the R26:lacZ/DT-A line (Brockschnieder et al., 2004, Mol Cell Biol 24:7636-7642) in which a loxP-conditional DTA allele was introduced into the ubiquitously expressed Rosa26 locus. This strain allowed the ablation of a wide spectrum of cell types by crossing it to tissue specific Cre lines. Unexpectedly, homozygous (but not heterozygous) animals of the R26:lacZ/DT-A line developed some degenerative abnormalities in a variety of tissues. The defects were most probably caused by leaky expression of small amounts of toxin from the unrecombined lacZ(flox)DT-A cassette. Here we show that insertion of an additional transcriptional regulatory sequence (bovine growth hormone polyadenylation signal, bpA) following the lacZ open reading frame prevented the formation of any defects in homozygous mice. The modification did not affect the functionality of the lacZ(flox)DTA allele, as exemplified by the complete ablation of oligodendrocytes upon Cre-mediated recombination. The novel R26:lacZbpA(flox)DTA line is expected to greatly facilitate the reliable generation of cell type ablated mice.
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Affiliation(s)
- Damian Brockschnieder
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot, Israel.
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Abstract
Oligodendrocytes form an insulating multilamellar structure of compact myelin around axons, thereby allowing rapid propagation of action potentials. Despite the considerable clinical importance of myelination, little is known about the molecular mechanisms that enable oligodendrocytes to generate their specialized membrane wrapping. Here, we used microarray expression profiling of oligodendrocyte-ablated mutant mice to identify new glial molecules that are involved in CNS myelination. This effort resulted in the identification of Ermin, a novel cytoskeletal molecule that is exclusively expressed by oligodendrocytes. Ermin appears at a late stage during myelination, and in the mature nerves, it is localized to the outer cytoplasmic lip of the myelin sheath and the paranodal loops. In cultured oligodendrocytes, Ermin becomes visible in well differentiated MBP-positive cells, where it is concentrated at the tip of F-actin-rich processes (termed "Ermin spikes"). Ectopic expression of Ermin, but not of a mutant protein lacking its actin-binding domain, induced the formation of numerous cell protrusions and a pronounced change in cell morphology. Our results demonstrate that Ermin is a novel marker of myelinating oligodendroglia and suggest that it plays a role in cytoskeletal rearrangements during the late wrapping and/or compaction phases of myelinogenesis.
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Affiliation(s)
- Damian Brockschnieder
- Department of Molecular Cell Biology, The Weizmann Institute of Science, Rehovot 76100, Israel
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Brockschnieder D, Lappe-Siefke C, Goebbels S, Boesl MR, Nave KA, Riethmacher D. Cell depletion due to diphtheria toxin fragment A after Cre-mediated recombination. Mol Cell Biol 2004; 24:7636-42. [PMID: 15314171 PMCID: PMC506983 DOI: 10.1128/mcb.24.17.7636-7642.2004] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Abnormal cell loss is the common cause of a large number of developmental and degenerative diseases. To model such diseases in transgenic animals, we have developed a line of mice that allows the efficient depletion of virtually any cell type in vivo following somatic Cre-mediated gene recombination. By introducing the diphtheria toxin fragment A (DT-A) gene as a conditional expression construct (floxed lacZ-DT-A) into the ubiquitously expressed ROSA26 locus, we produced a line of mice that would permit cell-specific activation of the toxin gene. Following Cre-mediated recombination under the control of cell-type-specific promoters, lacZ gene expression was efficiently replaced by de novo transcription of the Cre-recombined DT-A gene. We provide proof of this principle, initially for cells of the central nervous system (pyramidal neurons and oligodendrocytes), the immune system (B cells), and liver tissue (hepatocytes), that the conditional expression of DT-A is functional in vivo, resulting in the generation of novel degenerative disease models.
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Schmucker J, Ader M, Brockschnieder D, Brodarac A, Bartsch U, Riethmacher D. erbB3 is dispensable for oligodendrocyte development in vitro and in vivo. Glia 2003; 44:67-75. [PMID: 12951658 DOI: 10.1002/glia.10275] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
During development and in the adult, erbB2, erbB3, and erbB4 are expressed in many tissues and as heterodimers (B2/B3, B2/B4) serve as receptors for neuregulins. The general importance of neuregulin receptors for development is underlined by the observed embryonic (erbB2, erbB4) or perinatal (erbB3) lethality in mouse mutants. These mutants further revealed the fundamental role of the erbB2/erbB3 heterodimer for proper Schwann cell development, the ensheathing glia of the peripheral nervous system. However, only little is known about the functions of neuregulins and their receptors during postnatal development and in the adult. erbB2 and erbB3 during late embryogenesis and postnatally are expressed in different areas and cell types of the central nervous system, including oligodendrocytes, the ensheathing glia of the central nervous system. As terminal differentiation of oligodendrocytes peaks during postnatal development, it is not possible to use the neuregulin receptor mouse mutants to study terminal differentiation of oligodendrocytes in their absence in vivo. In order to investigate possible functions of the erbB3 gene in oligodendrocytes, we employed two different techniques. First, we directed the differentiation of erbB3-deficient embryonic stem cells into neural cell types to analyze the development of oligodendrocytes in the absence of erbB3 in vitro. Second, we grafted neural stem cells from spinal cords of erbB3 mutants into the retina of young mice to monitor oligodendrocyte differentiation and myelination in vivo. Results of both experimental approaches clearly show that erbB3 is not required for normal oligodendrocyte development and myelination.
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Affiliation(s)
- Johannes Schmucker
- Zentrum für Molekulare Neurobiologie, Universität Hamburg, Hamburg, Germany
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