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Mitronova GY, Quentin C, Belov VN, Wegener JW, Kiszka KA, Lehnart SE. 1,4-Benzothiazepines with Cyclopropanol Groups and Their Structural Analogues Exhibit Both RyR2-Stabilizing and SERCA2a-Stimulating Activities. J Med Chem 2023; 66:15761-15775. [PMID: 37991191 PMCID: PMC10726367 DOI: 10.1021/acs.jmedchem.3c01235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/24/2023] [Accepted: 11/07/2023] [Indexed: 11/23/2023]
Abstract
To discover new multifunctional agents for the treatment of cardiovascular diseases, we designed and synthesized a series of compounds with a cyclopropyl alcohol moiety and evaluated them in biochemical assays. Biological screening identified derivatives with dual activity: preventing Ca2+ leak through ryanodine receptor 2 (RyR2) and enhancing cardiac sarco-endoplasmic reticulum (SR) Ca2+ load by activation of Ca2+-dependent ATPase 2a (SERCA2a). The compounds that stabilize RyR2 at micro- and nanomolar concentrations are either structurally related to RyR-stabilizing drugs or Rycals or have structures similar to them. The novel compounds also demonstrate a good ability to increase ATP hydrolysis mediated by SERCA2a activity in cardiac microsomes, e.g., the half-maximal effective concentration (EC50) was as low as 383 nM for compound 12a, which is 1,4-benzothiazepine with two cyclopropanol groups. Our findings indicate that these derivatives can be considered as new lead compounds to improve cardiac function in heart failure.
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Affiliation(s)
- Gyuzel Y. Mitronova
- Department
of NanoBiophotonics, Max Planck Institute
for Multidisciplinary Sciences, Am Fassberg 11, Göttingen 37077, Germany
- German
Centre for Cardiovascular Research (DZHK), Partner Site Göttingen, Göttingen 37075, Germany
| | - Christine Quentin
- Department
of NanoBiophotonics, Max Planck Institute
for Multidisciplinary Sciences, Am Fassberg 11, Göttingen 37077, Germany
| | - Vladimir N. Belov
- Department
of NanoBiophotonics, Max Planck Institute
for Multidisciplinary Sciences, Am Fassberg 11, Göttingen 37077, Germany
| | - Jörg W. Wegener
- Department
of Cardiology & Pulmonology, Heart Research Center Göttingen, University Medical Center Göttingen, Robert-Koch-Strasse 42a, Göttingen 37075, Germany
- German
Centre for Cardiovascular Research (DZHK), Partner Site Göttingen, Göttingen 37075, Germany
| | - Kamila A. Kiszka
- Department
of NanoBiophotonics, Max Planck Institute
for Multidisciplinary Sciences, Am Fassberg 11, Göttingen 37077, Germany
| | - Stephan E. Lehnart
- Department
of Cardiology & Pulmonology, Heart Research Center Göttingen, University Medical Center Göttingen, Robert-Koch-Strasse 42a, Göttingen 37075, Germany
- German
Centre for Cardiovascular Research (DZHK), Partner Site Göttingen, Göttingen 37075, Germany
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Gerasimaitė R, Bucevičius J, Kiszka KA, Schnorrenberg S, Kostiuk G, Koenen T, Lukinavičius G. Blinking Fluorescent Probes for Tubulin Nanoscopy in Living and Fixed Cells. ACS Chem Biol 2021; 16:2130-2136. [PMID: 34734690 PMCID: PMC8609524 DOI: 10.1021/acschembio.1c00538] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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] [Indexed: 01/18/2023]
Abstract
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Here we report a
small molecule tubulin probe for single-molecule
localization microscopy (SMLM), stimulated emission depletion (STED)
microscopy and MINFLUX nanoscopy, which can be used in living and
fixed cells. We explored a series of taxane derivatives containing
spontaneously blinking far-red dye hydroxymethyl silicon–rhodamine
(HMSiR) and found that the linker length profoundly affects the probe
permeability and off-targeting in living cells. The best performing
probe, HMSiR-tubulin, is composed of cabazitaxel and the 6′-regioisomer
of HMSiR bridged by a C6 linker. Microtubule diameter of ≤50
nm was routinely measured in SMLM experiments on living and fixed
cells. HMSiR-tubulin allows a complementary use of different nanoscopy
techniques for investigating microtubule functions and developing
imaging methods. For the first time, we resolved the inner microtubule
diameter of 16 ± 5 nm by optical nanoscopy and thereby demonstrated
the utility of a self-blinking dye for MINFLUX imaging.
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Affiliation(s)
- Ru̅ta Gerasimaitė
- Chromatin Labeling and Imaging group, Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Jonas Bucevičius
- Chromatin Labeling and Imaging group, Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Kamila A. Kiszka
- Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | | | - Georgij Kostiuk
- Chromatin Labeling and Imaging group, Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Tanja Koenen
- Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
| | - Gražvydas Lukinavičius
- Chromatin Labeling and Imaging group, Department of NanoBiophotonics, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
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Nguyen H, Kerimoglu C, Pirouz M, Pham L, Kiszka KA, Sokpor G, Sakib MS, Rosenbusch J, Teichmann U, Seong RH, Stoykova A, Fischer A, Staiger JF, Tuoc T. Epigenetic Regulation by BAF Complexes Limits Neural Stem Cell Proliferation by Suppressing Wnt Signaling in Late Embryonic Development. Stem Cell Reports 2018; 10:1734-1750. [PMID: 29779894 PMCID: PMC5993560 DOI: 10.1016/j.stemcr.2018.04.014] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [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: 01/08/2018] [Revised: 04/16/2018] [Accepted: 04/17/2018] [Indexed: 12/21/2022] Open
Abstract
During early cortical development, neural stem cells (NSCs) divide symmetrically to expand the progenitor pool, whereas, in later stages, NSCs divide asymmetrically to self-renew and produce other cell types. The timely switch from such proliferative to differentiative division critically determines progenitor and neuron numbers. However, the mechanisms that limit proliferative division in late cortical development are not fully understood. Here, we show that the BAF (mSWI/SNF) complexes restrict proliferative competence and promote neuronal differentiation in late corticogenesis. Inactivation of BAF complexes leads to H3K27me3-linked silencing of neuronal differentiation-related genes, with concurrent H3K4me2-mediated activation of proliferation-associated genes via de-repression of Wnt signaling. Notably, the deletion of BAF complexes increased proliferation of neuroepithelial cell-like NSCs, impaired neuronal differentiation, and exerted a Wnt-dependent effect on neocortical and hippocampal development. Thus, these results demonstrate that BAF complexes act as both activators and repressors to control global epigenetic and gene expression programs in late corticogenesis. Loss of BAF complexes increases H3K27me3 and H3K4me2 marks in late corticogenesis BAF complexes epigenetically regulate neural proliferation and differentiation BAF complexes suppress neuroepithelial cell fate and Wnt signaling BAF complexes control cortical development in a Wnt signaling-dependent manner
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Affiliation(s)
- Huong Nguyen
- Institute of Neuroanatomy, University Medical Center, Georg-August- University, 37075 Goettingen, Germany
| | - Cemil Kerimoglu
- Department of Psychiatry and Psychotherapy, University Medical Center, Georg- August-University Goettingen, 37077 Goettingen, Germany; Department for Systems Medicine and Epigenetics, German Center for Neurodegenerative Diseases, 37075 Goettingen, Germany
| | - Mehdi Pirouz
- Max-Planck-Institute for Biophysical Chemistry, 37077 Goettingen, Germany
| | - Linh Pham
- Institute of Neuroanatomy, University Medical Center, Georg-August- University, 37075 Goettingen, Germany
| | - Kamila A Kiszka
- Institute of Neuroanatomy, University Medical Center, Georg-August- University, 37075 Goettingen, Germany; DFG Center for Nanoscale Microscopy & Molecular Physiology of the Brain (CNMPB), 37075 Goettingen, Germany
| | - Godwin Sokpor
- Institute of Neuroanatomy, University Medical Center, Georg-August- University, 37075 Goettingen, Germany
| | - M Sadman Sakib
- Department of Psychiatry and Psychotherapy, University Medical Center, Georg- August-University Goettingen, 37077 Goettingen, Germany; Department for Systems Medicine and Epigenetics, German Center for Neurodegenerative Diseases, 37075 Goettingen, Germany
| | - Joachim Rosenbusch
- Institute of Neuroanatomy, University Medical Center, Georg-August- University, 37075 Goettingen, Germany
| | - Ulrike Teichmann
- Max-Planck-Institute for Biophysical Chemistry, 37077 Goettingen, Germany
| | - Rho H Seong
- Department of Biological Sciences, Institute of Molecular Biology and Genetics, Research Center for Functional Cellulomics, Seoul National University, Seoul 151- 742, Korea
| | - Anastassia Stoykova
- Max-Planck-Institute for Biophysical Chemistry, 37077 Goettingen, Germany; DFG Center for Nanoscale Microscopy & Molecular Physiology of the Brain (CNMPB), 37075 Goettingen, Germany
| | - Andre Fischer
- Department of Psychiatry and Psychotherapy, University Medical Center, Georg- August-University Goettingen, 37077 Goettingen, Germany; Department for Systems Medicine and Epigenetics, German Center for Neurodegenerative Diseases, 37075 Goettingen, Germany
| | - Jochen F Staiger
- Institute of Neuroanatomy, University Medical Center, Georg-August- University, 37075 Goettingen, Germany; DFG Center for Nanoscale Microscopy & Molecular Physiology of the Brain (CNMPB), 37075 Goettingen, Germany
| | - Tran Tuoc
- Institute of Neuroanatomy, University Medical Center, Georg-August- University, 37075 Goettingen, Germany; DFG Center for Nanoscale Microscopy & Molecular Physiology of the Brain (CNMPB), 37075 Goettingen, Germany.
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Narayanan R, Pirouz M, Kerimoglu C, Pham L, Wagener R, Kiszka KA, Rosenbusch J, Seong R, Kessel M, Fischer A, Stoykova A, Staiger J, Tuoc T. Loss of BAF (mSWI/SNF) Complexes Causes Global Transcriptional and Chromatin State Changes in Forebrain Development. Cell Rep 2015; 13:1842-54. [DOI: 10.1016/j.celrep.2015.10.046] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 08/07/2015] [Accepted: 10/14/2015] [Indexed: 12/13/2022] Open
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