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Wójciuk KE, Sadło J, Lewandowska H, Brzóska K, Kruszewski M. A Crucial Role of Proteolysis in the Formation of Intracellular Dinitrosyl Iron Complexes. Molecules 2024; 29:1630. [PMID: 38611909 PMCID: PMC11013114 DOI: 10.3390/molecules29071630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Dinitrosyl iron complexes (DNICs) stabilize nitric oxide in cells and tissues and constitute an important form of its storage and transportation. DNICs may comprise low-molecular-weight ligands, e.g., thiols, imidazole groups in chemical compounds with low molecular weight (LMWDNICs), or high-molecular-weight ligands, e.g., peptides or proteins (HMWDNICs). The aim of this study was to investigate the role of low- and high-molecular-weight ligands in DNIC formation. Lysosomal and proteasomal proteolysis was inhibited by specific inhibitors. Experiments were conducted on human erythroid K562 cells and on K562 cells overexpressing a heavy chain of ferritin. Cell cultures were treated with •NO donor. DNIC formation was monitored by electron paramagnetic resonance. Pretreatment of cells with proteolysis inhibitors diminished the intensity and changed the shape of the DNIC-specific EPR signal in a treatment time-dependent manner. The level of DNIC formation was significantly influenced by the presence of protein degradation products. Interestingly, formation of HMWDNICs depended on the availability of LMWDNICs. The extent of glutathione involvement in the in vivo formation of DNICs is minor yet noticeable, aligning with our prior research findings.
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Affiliation(s)
- Karolina E. Wójciuk
- Nuclear Facilities Operations Department, National Centre for Nuclear Research (NCBJ), 05-400 Otwock, Poland
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (H.L.); (K.B.); (M.K.)
| | - Jarosław Sadło
- Centre for Radiation Chemistry and Technology, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland;
| | - Hanna Lewandowska
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (H.L.); (K.B.); (M.K.)
- School of Health & Medical Sciences, University of Economics and Human Sciences in Warsaw, 59 Okopowa St., 01-043 Warsaw, Poland
| | - Kamil Brzóska
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (H.L.); (K.B.); (M.K.)
| | - Marcin Kruszewski
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland; (H.L.); (K.B.); (M.K.)
- Department of Molecular Biology and Translational Research, Institute of Rural Health, Jaczewskiego 2, 20-090 Lublin, Poland
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Chiang CK, Liu YC, Chu KT, Chen JT, Tsai CY, Lee GH, Chiang MH, Lee CM. Stable Bimetallic Fe II/{Fe(NO) 2} 9 Moiety Derived from Reductive Transformations of a Diferrous-dinitrosyl Species. Inorg Chem 2022; 61:16325-16332. [PMID: 36198195 DOI: 10.1021/acs.inorgchem.2c02319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A dimeric dithiolate-bridged species, [Fe(NO)(PS2)]2 (1) containing two {FeNO}7 units, can be isolated by treating [Fe(CO)2(NO)2] with PS2H2 (PS2H2 = bis(2-dimercaptophenyl)phenylphosphine). Crystallographic studies reveal the syn-configuration of NO units and the bridging thiolates in the butterfly shape of the 2Fe2S core. Addition of PPh3 to the solution of dinuclear 1 leads to the formation of mononuclear {FeNO}7 [Fe(NO)(PS2)(PPh3)] (2) that shows electrochemical responses similar to those of 1. One-electron reduction of 1 with Cp*2Co or KC8 results in the isolation of thiolate-bridged bimetallic DNIC, [(PS2)Fe(μ-PS2)Fe(NO)2]- ([3]-), confirmed by several spectroscopies including single-crystal X-ray diffraction studies. The bimetallic DNIC [3]- is a rare example obtained from the one-electron reduction of a dinuclear Fe-NO {FeNO}7 model complex. With the assistance of redox behaviors of 2, electrochemical studies imply that the reduction of 1 leads to the formation of a mononuclear {FeNO}8 [Fe(NO)(PS2)(THF)]- intermediate, which involves disproportionation or NO- transfer to yield [3]-. Based on IR data and magnetic properties, the electronic structure of [3]- can be described as a FeII/{Fe(NO)2}9 state. Isolation of the {Fe(NO)2}9 moiety coordinated by the Fe ancillary complex lends strong support to the NO scrambling behavior in the effectiveness of the activity of flavodiiron nitric oxide reductases (FNORs).
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Affiliation(s)
- Chuan-Kuei Chiang
- Department of Applied Science, National Taitung University, Taitung950, Taiwan.,Institute of Chemistry, Academia Sinica, Taipei115, Taiwan
| | - Yu-Chiao Liu
- Institute of Chemistry, Academia Sinica, Taipei115, Taiwan
| | - Kai-Ti Chu
- Institute of Chemistry, Academia Sinica, Taipei115, Taiwan
| | - Jing-Ting Chen
- Institute of Chemistry, Academia Sinica, Taipei115, Taiwan
| | - Cheng-Yeh Tsai
- Institute of Chemistry, Academia Sinica, Taipei115, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation Center, National Taiwan University, Taipei106, Taiwan
| | - Ming-Hsi Chiang
- Institute of Chemistry, Academia Sinica, Taipei115, Taiwan.,Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung807, Taiwan
| | - Chien-Ming Lee
- Department of Applied Science, National Taitung University, Taitung950, Taiwan
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Stepanenko I, Mizetskyi P, Orlowska E, Bučinský L, Zalibera M, Vénosová B, Clémancey M, Blondin G, Rapta P, Novitchi G, Schrader W, Schaniel D, Chen YS, Lutz M, Kožíšek J, Telser J, Arion VB. The Ruthenium Nitrosyl Moiety in Clusters: Trinuclear Linear μ-Hydroxido Magnesium(II)-Diruthenium(II), μ 3-Oxido Trinuclear Diiron(III)-Ruthenium(II), and Tetranuclear μ 4-Oxido Trigallium(III)-Ruthenium(II) Complexes. Inorg Chem 2021; 61:950-967. [PMID: 34962391 PMCID: PMC8767547 DOI: 10.1021/acs.inorgchem.1c03011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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The ruthenium nitrosyl
moiety, {RuNO}6, is important
as a potential releasing agent of nitric oxide and is of inherent
interest in coordination chemistry. Typically, {RuNO}6 is
found in mononuclear complexes. Herein we describe the synthesis and
characterization of several multimetal cluster complexes that contain
this unit. Specifically, the heterotrinuclear μ3-oxido
clusters [Fe2RuCl4(μ3-O)(μ-OMe)(μ-pz)2(NO)(Hpz)2] (6) and [Fe2RuCl3(μ3-O)(μ-OMe)(μ-pz)3(MeOH)(NO)(Hpz)][Fe2RuCl3(μ3-O)(μ-OMe)(μ-pz)3(DMF)(NO)(Hpz)] (7·MeOH·2H2O) and the heterotetranuclear
μ4-oxido complex [Ga3RuCl3(μ4-O)(μ-OMe)3(μ-pz)4(NO)]
(8) were prepared from trans-[Ru(OH)(NO)(Hpz)4]Cl2 (5), which itself was prepared
via acidic hydrolysis of the linear heterotrinuclear complex {[Ru(μ-OH)(μ-pz)2(pz)(NO)(Hpz)]2Mg} (4). Complex 4 was synthesized from the mononuclear Ru complexes (H2pz)[trans-RuCl4(Hpz)2] (1), trans-[RuCl2(Hpz)4]Cl (2), and trans-[RuCl2(Hpz)4] (3). The new compounds 4–8 were all characterized by elemental
analysis, ESI mass spectrometry, IR, UV–vis, and 1H NMR spectroscopy, and single-crystal X-ray diffraction, with complexes 6 and 7 being characterized also by temperature-dependent
magnetic susceptibility measurements and Mössbauer spectroscopy.
Magnetometry indicated a strong antiferromagnetic interaction between
paramagnetic centers in 6 and 7. The ability
of 4 and 6–8 to form
linkage isomers and release NO upon irradiation in the solid state
was investigated by IR spectroscopy. A theoretical investigation of
the electronic structure of 6 by DFT and ab initio CASSCF/NEVPT2 calculations indicated a redox-noninnocent behavior
of the NO ancillary ligand in 6, which was also manifested
in TD-DFT calculations of its electronic absorption spectrum. The
electronic structure of 6 was also studied by an X-ray
charge density analysis. Mononuclear trans-[Ru(OH)NO(Hpz)4]2+ proved to
be a source of μ-hydroxido and μ3- and/or μ4-oxido bridging groups, which
could be incorporated into the heterotrinuclear complexes {[Ru(μ-OH)(μ-pz)2(pz)(NO)(Hpz)]2Mg}, [Fe2RuCl4(μ3-O)(μ-OMe)(μ-pz)2(NO)(Hpz)2], and [Fe2RuCl3(μ3-O)(μ-OMe)(μ-pz)3(MeOH)(NO)(Hpz)][Fe2RuCl3(μ3-O)(μ-OMe)(μ-pz)3(DMF)(NO)(Hpz)] (7·MeOH·2H2O) and the heterotetranuclear μ4-oxido complex [Ga3RuCl3(μ4-O)(μ-OMe)3(μ-pz)4(NO)]. The structures obtained were all confirmed
by SC-XRD, including an X-ray charge density analysis that revealed
the electronic structure of the RuFe2 cluster. Two of these nitrosyl
complexes underwent photoinduced isomerization with generation of
the nitrosyl linkage isomers MS1 and MS2, as revealed by IR spectroscopy
at 10 K.
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Affiliation(s)
- Iryna Stepanenko
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Pavlo Mizetskyi
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Ewelina Orlowska
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
| | - Lukáš Bučinský
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic
| | - Michal Zalibera
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic
| | - Barbora Vénosová
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic.,Department of Physics, Faculty of Science, University of Ostrava, 30. dubna 22, 70103 Ostrava, Czech Republic
| | - Martin Clémancey
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, LCBM, F-38000 Grenoble, France
| | - Geneviève Blondin
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, LCBM, F-38000 Grenoble, France
| | - Peter Rapta
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic
| | | | - Wolfgang Schrader
- MPI für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | | | - Yu-Sheng Chen
- NSF's ChemMATCARS, The University of Chicago, Lemont, Illinois 60439, United States
| | - Martin Lutz
- Structural Biochemistry, Bijvoet Centre for Biomolecular Research, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Jozef Kožíšek
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-81237 Bratislava, Slovak Republic
| | - Joshua Telser
- Department of Biological, Physical and Health Sciences, Roosevelt University, 430 South Michigan Avenue, Chicago, Illinois 60605, United States
| | - Vladimir B Arion
- University of Vienna, Institute of Inorganic Chemistry, Währinger Strasse 42, A-1090 Vienna, Austria
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