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Forchlorfenuron and Novel Analogs Cause Cytotoxic Effects in Untreated and Cisplatin-Resistant Malignant Mesothelioma-Derived Cells. Int J Mol Sci 2022; 23:ijms23073963. [PMID: 35409322 PMCID: PMC8999537 DOI: 10.3390/ijms23073963] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 02/01/2023] Open
Abstract
Malignant mesothelioma (MM) is a currently incurable, aggressive cancer derived from mesothelial cells, most often resulting from asbestos exposure. The current first-line treatment in unresectable MM is cisplatin/pemetrexed, which shows very little long-term effectiveness, necessitating research for novel therapeutic interventions. The existing chemotherapies often act on the cytoskeleton, including actin filaments and microtubules, but recent advances indicate the ‘fourth’ form consisting of the family of septins, representing a novel target. The septin inhibitor forchlorfenuron (FCF) and FCF analogs inhibit MM cell growth in vitro, but at concentrations which are too high for clinical applications. Based on the reported requirement of the chloride group in the 2-position of the pyridine ring of FCF for MM cell growth inhibition and cytotoxicity, we systematically investigated the importance (cell growth-inhibiting capacity) of the halogen atoms fluorine, chlorine, bromine and iodine in the 2- or 3-position of the pyridine ring. The MM cell lines ZL55, MSTO-211H, and SPC212, and—as a control—immortalized Met-5A mesothelial cells were used. The potency of the various halogen substitutions in FCF was mostly correlated with the atom size (covalent radius); the small fluoride analogs showed the least effect, while the largest one (iodide) most strongly decreased the MTT signals, in particular in MM cells derived from epithelioid MM. In the latter, the strongest effects in vitro were exerted by the 2-iodo and, unexpectedly, the 2-trifluoromethyl (2-CF3) FCF analogs, which were further tested in vivo in mice. However, FCF-2-I and, more strongly, FCF-2-CF3 caused rapidly occurring strong symptoms of systemic toxicity at doses lower than those previously obtained with FCF. Thus, we investigated the effectiveness of FCF (and selected analogs) in vitro in MM cells which were first exposed to cisplatin. The slowly appearing population of cisplatin-resistant cells was still susceptible to the growth-inhibiting/cytotoxic effect of FCF and its analogs, indicating that cisplatin and FCF target non-converging pathways in MM cells. Thus, a combination therapy of cisplatin and FCF (analogs) might represent a new avenue for the treatment of repopulating chemo-resistant MM cells in this currently untreatable cancer.
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Cummings CF, Pedchenko V, Brown KL, Colon S, Rafi M, Jones-Paris C, Pokydeshava E, Liu M, Pastor-Pareja JC, Stothers C, Ero-Tolliver IA, McCall AS, Vanacore R, Bhave G, Santoro S, Blackwell TS, Zent R, Pozzi A, Hudson BG. Extracellular chloride signals collagen IV network assembly during basement membrane formation. J Cell Biol 2017; 213:479-94. [PMID: 27216258 PMCID: PMC4878091 DOI: 10.1083/jcb.201510065] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 04/29/2016] [Indexed: 01/07/2023] Open
Abstract
Basement membranes are defining features of the cellular microenvironment; however, little is known regarding their assembly outside cells. We report that extracellular Cl(-) ions signal the assembly of collagen IV networks outside cells by triggering a conformational switch within collagen IV noncollagenous 1 (NC1) domains. Depletion of Cl(-) in cell culture perturbed collagen IV networks, disrupted matrix architecture, and repositioned basement membrane proteins. Phylogenetic evidence indicates this conformational switch is a fundamental mechanism of collagen IV network assembly throughout Metazoa. Using recombinant triple helical protomers, we prove that NC1 domains direct both protomer and network assembly and show in Drosophila that NC1 architecture is critical for incorporation into basement membranes. These discoveries provide an atomic-level understanding of the dynamic interactions between extracellular Cl(-) and collagen IV assembly outside cells, a critical step in the assembly and organization of basement membranes that enable tissue architecture and function. Moreover, this provides a mechanistic framework for understanding the molecular pathobiology of NC1 domains.
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Affiliation(s)
- Christopher F Cummings
- Department of Biochemistry, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Vadim Pedchenko
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Kyle L Brown
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Structural Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Selene Colon
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Mohamed Rafi
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Celestial Jones-Paris
- Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Elena Pokydeshava
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Min Liu
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | | | - Cody Stothers
- Department of Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Isi A Ero-Tolliver
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232
| | - A Scott McCall
- Department of Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Roberto Vanacore
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Gautam Bhave
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Samuel Santoro
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Timothy S Blackwell
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Roy Zent
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Ambra Pozzi
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Billy G Hudson
- Department of Biochemistry, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN 37232 Vanderbilt Institute of Chemical Biology, Vanderbilt University Medical Center, Nashville, TN 37232
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Demireva M, Oomens J, Berden G, Williams ER. The Ionic Hydrogen/Deuterium Bonds between Diammoniumalkane Dications and Halide Anions. Chempluschem 2013; 78:995-1004. [PMID: 31986747 DOI: 10.1002/cplu.201300084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Indexed: 11/06/2022]
Abstract
Halide-anion binding to 1,12-dodecanediammonium, tetramethyl-1,12-dodecanediammmonium, and tetramethyl-1,7-heptanediammonium has been investigated with infrared multiple-photon dissociation (IRMPD) spectroscopy in the 1000-2250 cm-1 spectral region and with theory. Both charged ammonium groups in these diammonium compounds interact with the halide anion resulting in an ionic hydrogen bond (IHB) stretching frequency outside of the spectral frequency range that can be measured with the free-electron laser (FEL). This frequency is shifted into the spectral range upon exchanging all of the labile hydrogen atoms with deuterium atoms, thus making measurement of the ionic deuterium bond (IDB) stretching frequency possible. The IDB stretching frequency shifts to higher values with increasing halide-anion size, methylation of the ammonium groups, and alkane chain length, consistent with the halide-anion-deuterium bond strength decreasing with decreasing gas-phase basicity of the halide anion and the increasing gas-phase basicity of the ammonium groups. The IDB stretching frequency also depends on the alkane chain length owing to constraints on the angle of the bonds between the halide anion and the two ammonium groups. There are additional bands in the IDB stretching feature in the IRMPD spectra, which are attributed to Fermi resonances and arise from coupling with overtone or combination bands that can be identified from theory and depend on the halide-anion identity and alkane chain length.
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Affiliation(s)
- Maria Demireva
- Department of Chemistry, University of California, Berkeley, CA 94720-1460 (USA), Fax: (+1) (510)-642-7714
| | - Jos Oomens
- Radboud University Nijmegen, Institute for Molecules and Materials, FELIX Facility, Toernooiveld 7, 6525ED Nijmegen (The Netherlands).,Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098XH Amsterdam (The Netherlands)
| | - Giel Berden
- Radboud University Nijmegen, Institute for Molecules and Materials, FELIX Facility, Toernooiveld 7, 6525ED Nijmegen (The Netherlands)
| | - Evan R Williams
- Department of Chemistry, University of California, Berkeley, CA 94720-1460 (USA), Fax: (+1) (510)-642-7714
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