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Primke TF, Ingelfinger R, Elewa MAF, Macinkovic I, Weigert A, Fabritius MP, Reichel CA, Ullrich A, Kazmaier U, Burgers LD, Fürst R. The Microtubule-Targeting Agent Pretubulysin Impairs the Inflammatory Response in Endothelial Cells by a JNK-Dependent Deregulation of the Histone Acetyltransferase Brd4. Cells 2023; 12:2112. [PMID: 37626922 PMCID: PMC10453553 DOI: 10.3390/cells12162112] [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: 07/13/2023] [Revised: 08/12/2023] [Accepted: 08/15/2023] [Indexed: 08/27/2023] Open
Abstract
The anti-inflammatory effects of depolymerizing microtubule-targeting agents on leukocytes are known for a long time, but the potential involvement of the vascular endothelium and the underlying mechanistic basis is still largely unclear. Using the recently synthesized depolymerizing microtubule-targeting agent pretubulysin, we investigated the anti-inflammatory potential of pretubulysin and other microtubule-targeting agents with respect to the TNF-induced leukocyte adhesion cascade in endothelial cells, to improve our understanding of the underlying biomolecular background. We found that treatment with pretubulysin reduces inflammation in vivo and in vitro via inhibition of the TNF-induced adhesion of leukocytes to the vascular endothelium by down-regulation of the pro-inflammatory cell adhesion molecules ICAM-1 and VCAM-1 in a JNK-dependent manner. The underlying mechanism includes JNK-induced deregulation and degradation of the histone acetyltransferase Bromodomain-containing protein 4. This study shows that depolymerizing microtubule-targeting agents, in addition to their established effects on leukocytes, also significantly decrease the inflammatory activation of vascular endothelial cells. These effects are not based on altered pro-inflammatory signaling cascades, but require deregulation of the capability of cells to enter constructive transcription for some genes, setting a baseline for further research on the prominent anti-inflammatory effects of depolymerizing microtubule-targeting agents.
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Affiliation(s)
- Tobias F. Primke
- Institute of Pharmaceutical Biology, Goethe University Frankfurt, 60438 Frankfurt, Germany; (T.F.P.); (R.I.); (L.D.B.)
- LOEWE Center for Translational Biodiversity Genomics (LOEWE-TBG), Goethe University Frankfurt, 60596 Frankfurt, Germany
| | - Rebecca Ingelfinger
- Institute of Pharmaceutical Biology, Goethe University Frankfurt, 60438 Frankfurt, Germany; (T.F.P.); (R.I.); (L.D.B.)
- LOEWE Center for Translational Biodiversity Genomics (LOEWE-TBG), Goethe University Frankfurt, 60596 Frankfurt, Germany
| | - Mohammed A. F. Elewa
- Institute of Biochemistry I, Faculty of Medicine, Goethe University Frankfurt, 60596 Frankfurt, Germany; (M.A.F.E.); (I.M.); (A.W.)
- Biochemistry Department, Faculty of Pharmacy, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt
| | - Igor Macinkovic
- Institute of Biochemistry I, Faculty of Medicine, Goethe University Frankfurt, 60596 Frankfurt, Germany; (M.A.F.E.); (I.M.); (A.W.)
| | - Andreas Weigert
- Institute of Biochemistry I, Faculty of Medicine, Goethe University Frankfurt, 60596 Frankfurt, Germany; (M.A.F.E.); (I.M.); (A.W.)
| | - Matthias P. Fabritius
- Department of Otorhinolaryngology, Walter Brendel Centre of Experimental Medicine, University Hospital, 81377 Munich, Germany; (M.P.F.); (C.A.R.)
- Department of Radiology, University Hospital, University of Munich, 81377 Munich, Germany
| | - Christoph A. Reichel
- Department of Otorhinolaryngology, Walter Brendel Centre of Experimental Medicine, University Hospital, 81377 Munich, Germany; (M.P.F.); (C.A.R.)
| | - Angelika Ullrich
- Institute of Organic Chemistry, Saarland University, 66123 Saarbrücken, Germany; (A.U.); (U.K.)
| | - Uli Kazmaier
- Institute of Organic Chemistry, Saarland University, 66123 Saarbrücken, Germany; (A.U.); (U.K.)
| | - Luisa D. Burgers
- Institute of Pharmaceutical Biology, Goethe University Frankfurt, 60438 Frankfurt, Germany; (T.F.P.); (R.I.); (L.D.B.)
| | - Robert Fürst
- Institute of Pharmaceutical Biology, Goethe University Frankfurt, 60438 Frankfurt, Germany; (T.F.P.); (R.I.); (L.D.B.)
- LOEWE Center for Translational Biodiversity Genomics (LOEWE-TBG), Goethe University Frankfurt, 60596 Frankfurt, Germany
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Roser LA, Erkoc P, Ingelfinger R, Henke M, Ulshöfer T, Schneider AK, Laux V, Geisslinger G, Schmitt I, Fürst R, Schiffmann S. Lecanoric acid mediates anti-proliferative effects by an M phase arrest in colon cancer cells. Biomed Pharmacother 2022; 148:112734. [DOI: 10.1016/j.biopha.2022.112734] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 12/12/2022] Open
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Bischoff-Kont I, Brabenec L, Ingelfinger R, Nausch B, Fürst R. BNO 1095, a Standardized Dry Extract from the Fruits of Vitex agnus-castus, Impairs Angiogenesis-related Endothelial Cell Functions In Vitro. Planta Med 2021; 87:611-619. [PMID: 33530113 PMCID: PMC8277439 DOI: 10.1055/a-1351-1038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
BNO 1095, a standardized dry extract from the fruits of Vitex agnus-castus, represents an approved herbal medicinal product for the treatment of premenstrual syndrome. Angiogenesis, the formation of new blood vessels from pre-existing capillaries, plays a major role in physiological situations, such as wound healing or tissue growth in female reproductive organs, but it is also of great importance in pathophysiological conditions such as chronic inflammatory diseases or cancer. Angiogenesis is a highly regulated multi-step process consisting of distinct key events that can be influenced pharmacologically. Few studies suggested anti-angiogenic actions of V. agnus-castus fruit extracts in in vivo and ex vivo models. Here, we provide for the first time profound in vitro data on BNO 1095-derived anti-angiogenic effects focusing on distinct angiogenesis-related endothelial cell functions that are inevitable for the process of new blood vessel formation. We found that V. agnus-castus extract significantly attenuated undirected and chemotactic migration of primary human endothelial cells. Moreover, the extract efficiently inhibited endothelial cell proliferation and reduced the formation of tube-like structures on Matrigel. Of note, the treatment of endothelial cell spheroids almost blocked endothelial sprouting in a 3D collagen gel. Our data present new and detailed insights into the anti-angiogenic actions of BNO 1095 and, therefore, suggest a novel scope of potential therapeutic applications of the extract for which these anti-angiogenic properties are required.
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Affiliation(s)
- Iris Bischoff-Kont
- Institute of Pharmaceutical Biology, Goethe University Frankfurt/Main, Germany
- Correspondence Dr. Iris Bischoff-Kont Institute of Pharmaceutical BiologyGoethe University FrankfurtMax-von-Laue-Str. 960438 Frankfurt am MainGermany+ 49 69 79 82 96 45+ 49 69 79 82 96 62
| | - Laura Brabenec
- Institute of Pharmaceutical Biology, Goethe University Frankfurt/Main, Germany
| | - Rebecca Ingelfinger
- Institute of Pharmaceutical Biology, Goethe University Frankfurt/Main, Germany
- LOEWE Center Translational Biodiversity Genomics (TBG), Frankfurt/Main, Germany
| | | | - Robert Fürst
- Institute of Pharmaceutical Biology, Goethe University Frankfurt/Main, Germany
- LOEWE Center Translational Biodiversity Genomics (TBG), Frankfurt/Main, Germany
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Ingelfinger R, Henke M, Roser L, Ulshöfer T, Calchera A, Singh G, Parnham MJ, Geisslinger G, Fürst R, Schmitt I, Schiffmann S. Unraveling the Pharmacological Potential of Lichen Extracts in the Context of Cancer and Inflammation With a Broad Screening Approach. Front Pharmacol 2020; 11:1322. [PMID: 33013369 PMCID: PMC7509413 DOI: 10.3389/fphar.2020.01322] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 08/07/2020] [Indexed: 01/05/2023] Open
Abstract
Lichen-forming fungi are symbiotic organisms that synthesize unique natural products with potential for new drug leads. Here, we explored the pharmacological activity of six lichen extracts (Evernia prunastri, Pseudevernia furfuracea, Umbilicaria pustulata, Umbilicaria crustulosa, Flavoparmelia caperata, Platismatia glauca) in the context of cancer and inflammation using a comprehensive set of 11 functional and biochemical in vitro screening assays. We assayed intracellular Ca2+ levels and cell migration. For cancer, we measured tumor cell proliferation, cell cycle distribution and apoptosis, as well as the angiogenesis-associated proliferation of endothelial cells (ECs). Targeting inflammation, we assayed leukocyte adhesion onto ECs, EC adhesion molecule expression, as well as nitric oxide production and prostaglandin (PG)E2 synthesis in leukocytes. Remarkably, none of the lichen extracts showed any detrimental influence on the viability of ECs. We showed for the first time that extracts of F. caperata induce Ca2+ signaling. Furthermore, extracts from E. prunastri, P. furfuracea, F. caperata, and P. glauca reduced cell migration. Interestingly, F. caperata extracts strongly decreased tumor cell survival. The proliferation of ECs was significantly reduced by E. prunastri, P. furfuracea, and F. caperata extracts. The extracts did not inhibit the activity of inflammatory processes in ECs. However, the pro-inflammatory activation of leukocytes was inhibited by extracts from E. prunastri, P. furfuracea, F. caperata, and P. glauca. After revealing the potential biological activities of lichen extracts by an array of screening tests, a correlation analysis was performed to evaluate particular roles of abundant lichen secondary metabolites, such as atranorin, physodic acid, and protocetraric acid as well as usnic acid in various combinations. Overall, some of the lichen extracts tested in this study exhibit significant pharmacological activity in the context of inflammation and/or cancer, indicating that the group lichen-forming fungi includes promising members for further testing.
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Affiliation(s)
- Rebecca Ingelfinger
- Faculty of Biochemistry, Institute of Pharmaceutical Biology, Chemistry and Pharmacy, Goethe University Frankfurt, Frankfurt, Germany.,LOEWE Center Translational Biodiversity Genomics, Frankfurt, Germany
| | - Marina Henke
- LOEWE Center Translational Biodiversity Genomics, Frankfurt, Germany.,Branch for Translational Medicine and Pharmacology (TMP), Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Frankfurt, Germany
| | - Luise Roser
- LOEWE Center Translational Biodiversity Genomics, Frankfurt, Germany.,Branch for Translational Medicine and Pharmacology (TMP), Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Frankfurt, Germany
| | - Thomas Ulshöfer
- LOEWE Center Translational Biodiversity Genomics, Frankfurt, Germany.,Branch for Translational Medicine and Pharmacology (TMP), Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Frankfurt, Germany
| | - Anjuli Calchera
- Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt, Germany
| | - Garima Singh
- LOEWE Center Translational Biodiversity Genomics, Frankfurt, Germany
| | - Michael J Parnham
- Branch for Translational Medicine and Pharmacology (TMP), Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Frankfurt, Germany
| | - Gerd Geisslinger
- LOEWE Center Translational Biodiversity Genomics, Frankfurt, Germany.,Branch for Translational Medicine and Pharmacology (TMP), Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Frankfurt, Germany.,pharmazentrum frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe University Hospital Frankfurt, Frankfurt, Germany
| | - Robert Fürst
- Faculty of Biochemistry, Institute of Pharmaceutical Biology, Chemistry and Pharmacy, Goethe University Frankfurt, Frankfurt, Germany.,LOEWE Center Translational Biodiversity Genomics, Frankfurt, Germany
| | - Imke Schmitt
- LOEWE Center Translational Biodiversity Genomics, Frankfurt, Germany.,Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt, Germany.,Faculty of Biological Sciences, Institute of Ecology, Evolution and Diversity, Goethe University Frankfurt, Frankfurt, Germany
| | - Susanne Schiffmann
- LOEWE Center Translational Biodiversity Genomics, Frankfurt, Germany.,Branch for Translational Medicine and Pharmacology (TMP), Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Frankfurt, Germany
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