1
|
Sharma VK, Assaraf YG, Gross Z. Hallmarks of anticancer and antimicrobial activities of corroles. Drug Resist Updat 2023; 67:100931. [PMID: 36739808 DOI: 10.1016/j.drup.2023.100931] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 01/06/2023] [Accepted: 01/16/2023] [Indexed: 01/22/2023]
Abstract
Corroles provide a remarkable opportunity for the development of cancer theranostic agents among other porphyrinoids. While most transition metal corrole complexes are only therapeutic, post-transition metallocorroles also find their applications in bioimaging. Moreover, corroles exhibit excellent photo-physicochemical properties, which can be harnessed for antitumor and antimicrobial interventions. Nevertheless, these intriguing, yet distinct properties of corroles, have not attained sufficient momentum in cancer research. The current review provides a comprehensive summary of various cancer-relevant features of corroles ranging from their structural and photophysical properties, chelation, protein/corrole interactions, to DNA intercalation. Another aspect of the paper deals with the studies of corroles conducted in vitro and in vivo with an emphasis on medical imaging (optical and magnetic resonance), photo/sonodynamic therapies, and photodynamic inactivation. Special attention is also given to a most recent finding that shows the development of pH-responsive phosphorus corrole as a potent antitumor drug for organelle selective antitumor cytotoxicity in preclinical studies. Another biomedical application of corroles is also highlighted, signifying the application of water-soluble and completely lipophilic corroles in the photodynamic inactivation of microorganisms. We strongly believe that future studies will offer a greater possibility of utilizing advanced corroles for selective tumor targeting and antitumor cytotoxicity. In the line with future developments, an ideal pipeline is envisioned on grounds of cancer targeting nanoparticle systems upon decoration with tumor-specific ligands. Hence, we envision that a bright future lies ahead of corrole anticancer research and therapeutics.
Collapse
Affiliation(s)
- Vinay K Sharma
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 3200003, Israel.
| | - Yehuda G Assaraf
- The Fred Wyszkowski Cancer Research Laboratory, Department of Biology, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 3200003, Israel.
| |
Collapse
|
2
|
Vigder N, Suarna C, Corcilius L, Nadel J, Chen W, Payne R, Tumanov S, Stocker R. An improved method for the detection of myeloperoxidase chlorinating activity in biological systems using the redox probe hydroethidine. Free Radic Biol Med 2023; 195:23-35. [PMID: 36565892 DOI: 10.1016/j.freeradbiomed.2022.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 12/06/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
Conversion of the redox probe hydroethidine (HE) to 2-chloroethidium (2-Cl-E+) by myeloperoxidase (MPO)-derived hypochlorous acid (HOCl) provides comparable specificity and superior sensitivity to measurement of 3-chlorotyrosine (3-Cl-Tyr), the gold standard biomarker for MPO chlorinating activity in biological systems. However, a limitation of the former method is the complex mixture of products formed by the reaction of HE with reagent HOCl, coupled with the difficult purification of 2-Cl-E+ from this mixture for analytical purposes. This limitation prompted us to test whether 2-Cl-E+ could be formed by reaction of HE with the strong and widely used chlorinating agent, N-chlorosuccinimide (NCS). Unexpectedly, such reaction yielded 2-chlorohydroethidine (2-Cl-HE) as the major product in addition to 2-Cl-E+, as assessed by high performance liquid chromatography (HPLC), mass spectrometry (MS), and nuclear magnetic resonance (NMR). 2-Cl-HE was also observed to be the major chlorination product formed from HE with both reagent and enzymatically generated HOCl, just as it was formed ex vivo in different healthy and diseased mouse and human tissues upon incubation with glucose/glucose oxidase to generate a flux of hydrogen peroxide (H2O2). Quantification of 2-Cl-HE plus 2-Cl-E+ improved the sensitivity of the HE-based method compared with measurement of only 2-Cl-E+. Moreover, 2-chlorodimidium (2-Cl-D+) was developed as a practical internal standard instead of the previously used internal standard, deuterated 2-Cl-E+ (d5-2-Cl-E+). Overall, the present study describes an improved method for the detection of MPO/chlorinating activity in biological systems of health and disease.
Collapse
Affiliation(s)
- Niv Vigder
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Cacang Suarna
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Leo Corcilius
- School of Chemistry, The University of Sydney, Sydney, New South Wales, Australia; Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, New South Wales, Australia
| | - James Nadel
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; St Vincent's Hospital, Sydney, Australia; University of New South Wales, Sydney, Australia
| | - Weiyu Chen
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia
| | - Richard Payne
- School of Chemistry, The University of Sydney, Sydney, New South Wales, Australia; Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, New South Wales, Australia
| | - Sergey Tumanov
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia
| | - Roland Stocker
- Heart Research Institute, The University of Sydney, Sydney, New South Wales, Australia; School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales, Australia.
| |
Collapse
|
3
|
Kumar A, Kim D, Kumar S, Mahammed A, Churchill DG, Gross Z. Milestones in corrole chemistry: historical ligand syntheses and post-functionalization. Chem Soc Rev 2023; 52:573-600. [PMID: 36537842 DOI: 10.1039/d1cs01137e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Corroles are synthetic porphyrin analogs that contain one meso carbon atom lesser and bear a trianionic N4 metal-chelating core. They require in-depth preparative chemistry, demonstrate unique coordination chemistry and have impressive and diverse physical properties, and these are commonly compared to their respective porphyrins. The corrole's macrocyclic system is inherently electron rich and chelates metal ions in a more compact, less symmetric tetranitrogen cavity compared to that of porphyrins. Herein, we cover the highlights of the corrole research through the decades by first reviewing, in a chronological sense, multi-step syntheses; some routes have since been discontinued. This is followed by describing post-functionalization of already formed corroles via reactions performed on either the macrocycle's periphery or the inner nitrogen atoms or on the existing substituents. We do also mention milestones in literature reviewing, publication of encyclopedias, and the creation of professional organizations and conferences (ICPP) which make up the corrole/porphyrin research landscape. Also highlighted are still existing challenges and future perspectives.
Collapse
Affiliation(s)
- Anil Kumar
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel. .,Department of Applied Chemistry, Delhi Technological University, Delhi 110042, India
| | - Donghyeon Kim
- Department of Chemistry, Molecular Logic Gate Laboratory, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea.
| | - Sachin Kumar
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel.
| | - Atif Mahammed
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel.
| | - David G Churchill
- Department of Chemistry, Molecular Logic Gate Laboratory, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea. .,Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa 32000, Israel.
| |
Collapse
|
4
|
Lambiri DW, Levin LA. Modeling Reactive Oxygen Species-Induced Axonal Loss in Leber Hereditary Optic Neuropathy. Biomolecules 2022; 12:biom12101411. [PMID: 36291620 PMCID: PMC9599876 DOI: 10.3390/biom12101411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/29/2022] [Accepted: 09/30/2022] [Indexed: 11/17/2022] Open
Abstract
Leber hereditary optic neuropathy (LHON) is a rare syndrome that results in vision loss. A necessary but not sufficient condition for its onset is the existence of known mitochondrial DNA mutations that affect complex I biomolecular structure. Cybrids with LHON mutations generate higher rates of reactive oxygen species (ROS). This study models how ROS, particularly H2O2, could signal and execute the axonal degeneration process that underlies LHON. We modeled and explored several hypotheses regarding the influence of H2O2 on the dynamics of propagation of axonal degeneration in LHON. Zonal oxidative stress, corresponding to H2O2 gradients, correlated with the morphology of injury exhibited in the LHON pathology. If the axonal membrane is highly permeable to H2O2 and oxidative stress induces larger production of H2O2, small injuries could trigger cascading failures of neighboring axons. The cellular interdependence created by H2O2 diffusion, and the gradients created by tissue variations in H2O2 production and scavenging, result in injury patterns and surviving axonal loss distributions similar to LHON tissue samples. Specifically, axonal degeneration starts in the temporal optic nerve, where larger groups of small diameter fibers are located and propagates from that region. These findings correlate well with clinical observations of central loss of visual field, visual acuity, and color vision in LHON, and may serve as an in silico platform for modeling the mechanism of action for new therapeutics.
Collapse
Affiliation(s)
- Darius W. Lambiri
- Department of Physiology, McGill University, Montreal, QC H3G 1Y6, Canada
| | - Leonard A. Levin
- Department of Ophthalmology and Visual Sciences, McGill University, Montreal, QC H4A 3S5, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, QC H3A 2B4, Canada
- Correspondence:
| |
Collapse
|
5
|
Maekawa S, Sato K, Kokubun T, Himori N, Yabana T, Ohno-Oishi M, Shi G, Omodaka K, Nakazawa T. A Plant-Derived Antioxidant Supplement Prevents the Loss of Retinal Ganglion Cells in the Retinas of NMDA-Injured Mice. Clin Ophthalmol 2022; 16:823-832. [PMID: 35330750 PMCID: PMC8939866 DOI: 10.2147/opth.s354958] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/02/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Shigeto Maekawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Kota Sato
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Taiki Kokubun
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Noriko Himori
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Aging Vision Healthcare, Tohoku University Graduate School of Biomedical Engineering, Sendai, Miyagi, Japan
| | - Takeshi Yabana
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Michiko Ohno-Oishi
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Ge Shi
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Kazuko Omodaka
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Toru Nakazawa
- Department of Ophthalmology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Collaborative Program for Ophthalmic Drug Discovery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Correspondence: Toru Nakazawa, Department of Ophthalmology, Tohoku University Graduate School of Medicine, 1-1 Seiryo, Aoba, Sendai, Miyagi, 980-8574, Japan, Tel +81-22-717-7294, Fax +81-22-717-7298, Email
| |
Collapse
|
6
|
Geva M, Gershoni-Emek N, Naia L, Ly P, Mota S, Rego AC, Hayden MR, Levin LA. Neuroprotection of retinal ganglion cells by the sigma-1 receptor agonist pridopidine in models of experimental glaucoma. Sci Rep 2021; 11:21975. [PMID: 34753986 PMCID: PMC8578336 DOI: 10.1038/s41598-021-01077-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 10/20/2021] [Indexed: 12/21/2022] Open
Abstract
Optic neuropathies such as glaucoma are characterized by retinal ganglion cell (RGC) degeneration and death. The sigma-1 receptor (S1R) is an attractive target for treating optic neuropathies as it is highly expressed in RGCs, and its absence causes retinal degeneration. Activation of the S1R exerts neuroprotective effects in models of retinal degeneration. Pridopidine is a highly selective and potent S1R agonist in clinical development. We show that pridopidine exerts neuroprotection of retinal ganglion cells in two different rat models of glaucoma. Pridopidine strongly binds melanin, which is highly expressed in the retina. This feature of pridopidine has implications to its ocular distribution, bioavailability, and effective dose. Mitochondria dysfunction is a key contributor to retinal ganglion cell degeneration. Pridopidine rescues mitochondrial function via activation of the S1R, providing support for the potential mechanism driving its neuroprotective effect in retinal ganglion cells.
Collapse
Affiliation(s)
| | | | - Luana Naia
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- Department of Neurobiology, Care Science and Society, Karolinska Institutet, Stockholm, Sweden
| | - Philip Ly
- The Centre for Molecular Medicine and Therapeutics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Sandra Mota
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Ana Cristina Rego
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- FMUC-Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Michael R Hayden
- Prilenia Therapeutics, Herzliya, Israel
- The Centre for Molecular Medicine and Therapeutics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Leonard A Levin
- Department of Ophthalmology and Visual Sciences, McGill University, Montreal, Canada.
- Department of Neurology and Neurosurgery, McGill University, Montreal, Canada.
- Montreal Neurological Institute, McGill University, Montreal, Canada.
| |
Collapse
|
7
|
Soll M, Goldshtein H, Rotkopf R, Russek-Blum N, Gross Z. A Synthetic SOD/Catalase Mimic Compound for the Treatment of ALS. Antioxidants (Basel) 2021; 10:827. [PMID: 34067277 PMCID: PMC8224677 DOI: 10.3390/antiox10060827] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease affecting motor neurons. To date, the etiology of the disease is still unclear, with evidence of reactive oxygen species, mitochondrial dysfunction, iron homeostasis perturbation, protein misfolding and protein aggregation as key players in the pathology of the disease. Twenty percent of familial ALS and two percent of sporadic ALS instances are due to a mutation in Cu/Zn superoxide dismutase (SOD1). Sporadic and familial ALS affects the same neurons with similar pathology; therefore, the underlying hypothesis is that therapies effective in mutant SOD1 models could be translated to sporadic ALS. Corrole metal complexes have lately been identified as strong and potent catalytic antioxidants with beneficial effects in oxidative stress-related diseases such as Parkinson's disease, Alzheimer's disease, atherosclerosis, diabetes and its complications. One of the most promising candidates is the iron complex of an amphiphilic corrole, 1-Fe. In this study we used the SOD1 G93R mutant zebrafish ALS model to assess whether 1-Fe, as a potent catalytic antioxidant, displays any therapeutic merits in vivo. Our results show that 1-Fe caused a substantial increase in mutant zebrafish locomotor activity (up to 30%), bringing the locomotive abilities of the mutant treated group close to that of the wild type untreated group (50% more than the mutated untreated group). Furthermore, 1-Fe did not affect WT larvae locomotor activity, suggesting that 1-Fe enhances locomotor ability by targeting mechanisms underlying SOD1 ALS specifically. These results may pave the way for future development of 1-Fe as a viable treatment for ALS.
Collapse
Affiliation(s)
- Matan Soll
- Schulich Faculty of Chemistry, Technion–Israel Institute of Technology, Haifa 32000, Israel;
| | - Hagit Goldshtein
- The Dead Sea & Arava Science Center, Auspices of Ben Gurion University, Central Arava 86815, Israel;
| | - Ron Rotkopf
- Bioinformatics and Biological Computing Unit, Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot 7610001, Israel;
| | - Niva Russek-Blum
- The Dead Sea & Arava Science Center, Auspices of Ben Gurion University, Central Arava 86815, Israel;
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion–Israel Institute of Technology, Haifa 32000, Israel;
| |
Collapse
|
8
|
Coussa RG, Merat P, Levin LA. Propagation and Selectivity of Axonal Loss in Leber Hereditary Optic Neuropathy. Sci Rep 2019; 9:6720. [PMID: 31040363 PMCID: PMC6491426 DOI: 10.1038/s41598-019-43180-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 04/17/2019] [Indexed: 11/09/2022] Open
Abstract
Leber hereditary optic neuropathy (LHON) is a syndrome of subacute loss of central vision associated with mutations in mitochondrial DNA coding for components of complex I. LHON preferentially involves small axons in the temporal optic nerve, but the reason is unclear. We performed a Monte Carlo simulation of the spread of injury in LHON axons to better understand the predilection for small axons. Optic nerve slices were modeled as grids containing axons with sizes from reported regional distributions. The propagation of injury from a localized concentration of superoxide was simulated as the spread via passive diffusion from one axon to adjacent axons, with basal production and scavenging rate proportional to axonal area and volume, respectively. Axonal degeneration occurred when intra-axonal concentrations reached a toxic threshold. Simulations demonstrated that almost all small and medium axons degenerated by the time steady-state was reached, but about 50% of large axons were preserved. The location of initial injury affected time to steady state, with nasal injuries reaching steady state faster than temporal injuries. The pattern of axonal degeneration in the simulations mirrored both visual fields and optic nerve histology from patients with LHON. These results provide insight into the nature of axonal loss in LHON.
Collapse
Affiliation(s)
- Razek Georges Coussa
- Department of Ophthalmology and Visual Sciences, McGill University, Montreal, Canada
| | - Pooya Merat
- Department of Electrical and Computer Engineering, McGill University, Montreal, Canada
| | - Leonard A Levin
- Department of Ophthalmology and Visual Sciences, McGill University, Montreal, Canada. .,Department of Neurology & Neurosurgery, McGill University, Montreal, Canada. .,Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, WI, USA.
| |
Collapse
|
9
|
Cai F, Xia F, Guo Y, Zhu W, Fu B, Liang X, Wang S, Cai Z, Xu H. “Off–on–off” type of selectively pH-sensing 8-hydroxyquinoline-substituted gallium(iii) corrole. NEW J CHEM 2019. [DOI: 10.1039/c9nj04544a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We herein reported the synthesis and pH sensing property of a novel gallium corrole derivatives based on 8-hydroxyquinoline. Ga-corrole derivative showed good fluorescent response upon changing the pH values in the wide region of pH 1 to 12.
Collapse
Affiliation(s)
- Fangjian Cai
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Nanjing Forestry University
- Nanjing 210037
| | - Fei Xia
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Yingxin Guo
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Nanjing Forestry University
- Nanjing 210037
| | - Weihua Zhu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
| | - Bo Fu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Nanjing Forestry University
- Nanjing 210037
| | - Xu Liang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University
| | - Shifa Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Nanjing Forestry University
- Nanjing 210037
| | - Zhengchun Cai
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Nanjing Forestry University
- Nanjing 210037
| | - Haijun Xu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Nanjing Forestry University
- Nanjing 210037
| |
Collapse
|
10
|
Sharma VK, Mahammed A, Soll M, Tumanskii B, Gross Z. Corroles and corrole/transferrin nanoconjugates as candidates for sonodynamic therapy. Chem Commun (Camb) 2019; 55:12789-12792. [DOI: 10.1039/c9cc06494j] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report corroles as good agents for utilizing the otherwise harmless sonication of aqueous solutions as a tool for creating highly cytotoxic singlet oxygen, and demonstrate cancer cell killing via this approach.
Collapse
Affiliation(s)
- Vinay Kumar Sharma
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| | - Atif Mahammed
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| | - Matan Soll
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| | - Boris Tumanskii
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| |
Collapse
|
11
|
Chan W, Almasieh M, Catrinescu MM, Levin LA. Cobalamin-Associated Superoxide Scavenging in Neuronal Cells Is a Potential Mechanism for Vitamin B 12-Deprivation Optic Neuropathy. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 188:160-172. [PMID: 29037851 DOI: 10.1016/j.ajpath.2017.08.032] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Revised: 07/31/2017] [Accepted: 08/28/2017] [Indexed: 12/16/2022]
Abstract
Chronic deficiency of vitamin B12 is the only nutritional deficiency definitively proved to cause optic neuropathy and loss of vision. The mechanism by which this occurs is unknown. Optic neuropathies are associated with death of retinal ganglion cells (RGCs), neurons that project their axons along the optic nerve to the brain. Injury to RGC axons causes a burst of intracellular superoxide, which then signals RGC apoptosis. Vitamin B12 (cobalamin) was recently shown to be a superoxide scavenger, with a rate constant similar to superoxide dismutase. Given that vitamin B12 deficiency causes an optic neuropathy through unknown mechanisms and that it is a potent superoxide scavenger, we tested whether cobalamin, a vitamin B12 vitamer, would be neuroprotective in vitro and in vivo. We found that cobalamin scavenged superoxide in neuronal cells in vitro treated with the reduction-oxidation cycling agent menadione. In vivo confocal scanning laser ophthalmoscopy demonstrated that optic nerve transection in Long-Evans rats increased superoxide levels in RGCs. The RGC superoxide burst was significantly reduced by intravitreal cobalamin and resulted in increased RGC survival. These data demonstrate that cobalamin may function as an endogenous neuroprotectant for RGCs through a superoxide-associated mechanism.
Collapse
Affiliation(s)
- Wesley Chan
- Maisonneuve-Rosemont Hospital Research Center and Department of Ophthalmology, University of Montreal, Montreal, Quebec, Canada
| | - Mohammadali Almasieh
- Maisonneuve-Rosemont Hospital Research Center and Department of Ophthalmology, University of Montreal, Montreal, Quebec, Canada; Department of Ophthalmology, McGill University, Montreal, Quebec, Canada; Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Maria-Magdalena Catrinescu
- Maisonneuve-Rosemont Hospital Research Center and Department of Ophthalmology, University of Montreal, Montreal, Quebec, Canada; Department of Ophthalmology, McGill University, Montreal, Quebec, Canada; Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Leonard A Levin
- Maisonneuve-Rosemont Hospital Research Center and Department of Ophthalmology, University of Montreal, Montreal, Quebec, Canada; Department of Ophthalmology, McGill University, Montreal, Quebec, Canada; Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada; Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
| |
Collapse
|
12
|
Maekawa S, Sato K, Fujita K, Daigaku R, Tawarayama H, Murayama N, Moritoh S, Yabana T, Shiga Y, Omodaka K, Maruyama K, Nishiguchi KM, Nakazawa T. The neuroprotective effect of hesperidin in NMDA-induced retinal injury acts by suppressing oxidative stress and excessive calpain activation. Sci Rep 2017; 7:6885. [PMID: 28761134 PMCID: PMC5537259 DOI: 10.1038/s41598-017-06969-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 06/22/2017] [Indexed: 12/21/2022] Open
Abstract
We found that hesperidin, a plant-derived bioflavonoid, may be a candidate agent for neuroprotective treatment in the retina, after screening 41 materials for anti-oxidative properties in a primary retinal cell culture under oxidative stress. We found that the intravitreal injection of hesperidin in mice prevented reductions in markers of the retinal ganglion cells (RGCs) and RGC death after N-methyl-D-aspartate (NMDA)-induced excitotoxicity. Hesperidin treatment also reduced calpain activation, reactive oxygen species generation and TNF-α gene expression. Finally, hesperidin treatment improved electrophysiological function, measured with visual evoked potential, and visual function, measured with optomotry. Thus, we found that hesperidin suppressed a number of cytotoxic factors associated with NMDA-induced cell death signaling, such as oxidative stress, over-activation of calpain, and inflammation, thereby protecting the RGCs in mice. Therefore, hesperidin may have potential as a therapeutic supplement for protecting the retina against the damage associated with excitotoxic injury, such as occurs in glaucoma and diabetic retinopathy.
Collapse
Affiliation(s)
- Shigeto Maekawa
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Kota Sato
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
- Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Kosuke Fujita
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Reiko Daigaku
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Hiroshi Tawarayama
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Namie Murayama
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Satoru Moritoh
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Takeshi Yabana
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Yukihiro Shiga
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Kazuko Omodaka
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
- Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Kazuichi Maruyama
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Koji M Nishiguchi
- Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan
| | - Toru Nakazawa
- Department of Ophthalmology and Visual Science, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan.
- Department of Ophthalmic Imaging and Information Analytics, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan.
- Department of Retinal Disease Control, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan.
- Department of Advanced Ophthalmic Medicine, Tohoku University Graduate School of Medicine, Sendai, 980-8574, Japan.
| |
Collapse
|
13
|
Janus DA, Lieven CJ, Crowe ME, Levin LA. Polyester-based microdisc systems for sustained release of neuroprotective phosphine-borane complexes. Pharm Dev Technol 2017; 23:882-889. [PMID: 28524719 DOI: 10.1080/10837450.2017.1333516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Phosphine-borane complexes are recently developed redox-active drugs that are neuroprotective in models of optic nerve injury and radioprotective in endothelial cells. However, a single dose of these compounds is short-lived, necessitating the development of sustained-release formulations of these novel molecules. We screened a library of biodegradable co- and non-block polyester polymer systems for release of incorporated phosphine-borane complexes to evaluate them as drug delivery systems for use in chronic disease. Bis(3-propionic acid methyl ester)phenylphosphine borane complex (PB1) was combined with biodegradable polymers based on poly(D,L-lactide) (PDLLA), poly(L-lactide) (PLLA), poly(caprolactone) (PCL), poly(lactide-co-glycide) (PLGA), or poly(dioxanone-co-caprolactone) (PDOCL) to make polymer microdiscs, and release over time quantified. Of 22 polymer-PB1 formulations tested, 17 formed rigid polymers. Rates of release differed significantly based on the chemical structure of the polymer. PB1 released from PLGA microdiscs released most slowly, with the most linear release in polymers of 60:40 LA:GA, acid endcap, Mn 15 000-25 000 and 75:25 LA:GA, acid endcap, Mn 45 000-55 000. Biodegradable polymer systems can, therefore, be used to produce sustained-release formulations for redox-active phosphine-borane complexes, with PLGA-based systems most suitable for very slow release. The sustained release could enable translation to a clinical neuroprotective strategy for chronic diseases such as glaucoma.
Collapse
Affiliation(s)
- David A Janus
- a Department of Ophthalmology and Visual Sciences , University of Wisconsin School of Medicine and Public Health , Madison , WI , USA
| | - Christopher J Lieven
- a Department of Ophthalmology and Visual Sciences , University of Wisconsin School of Medicine and Public Health , Madison , WI , USA
| | - Megan E Crowe
- a Department of Ophthalmology and Visual Sciences , University of Wisconsin School of Medicine and Public Health , Madison , WI , USA
| | - Leonard A Levin
- a Department of Ophthalmology and Visual Sciences , University of Wisconsin School of Medicine and Public Health , Madison , WI , USA.,b Departments of Ophthalmology and Neurology , McGill University , Montreal , QC , Canada
| |
Collapse
|
14
|
Abstract
Glaucoma is both the most common optic neuropathy worldwide and the most common cause of irreversible blindness in the world. The only proven treatment for glaucomatous optic neuropathy is lowering the intraocular pressure, achieved with a variety of pharmacological, laser, and surgical approaches. Over the past 2 decades there has been much basic and clinical research into achieving treatment of the underlying optic nerve damage with neuroprotective approaches. However, none has resulted in regulatory approval based on successful phase 3 studies. This chapter discusses the reasons for this "lost in translation" aspect of glaucoma neuroprotection, and outlines issues at the laboratory and clinical trial level that need to be addressed for successful development of neuroprotective therapies.
Collapse
Affiliation(s)
- Leonard A Levin
- Department of Ophthalmology, McGill University, Montreal, QC, Canada
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- McGill Academic Eye Centre, 5252 de Maisonneuve West, Suite 400, Montreal, QC, Canada, H4A 3S5
- Department of Ophthalmology, University of Montreal, Montreal, QC, Canada
| |
Collapse
|
15
|
Ischemic optic neuropathy as a model of neurodegenerative disorder: A review of pathogenic mechanism of axonal degeneration and the role of neuroprotection. J Neurol Sci 2016; 375:430-441. [PMID: 28320183 DOI: 10.1016/j.jns.2016.12.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 12/20/2016] [Accepted: 12/22/2016] [Indexed: 02/07/2023]
Abstract
Optic neuropathy is a neurodegenerative disease which involves optic nerve injury. It is caused by acute or intermittent insults leading to visual dysfunction. There are number of factors, responsible for optic neuropathy, and the optic nerve axon is affected in all type which causes the loss of retinal ganglion cells. In this review we will highlight various mechanisms involved in the cell loss cascades during axonal degeneration as well as ischemic optic neuropathy. These mechanisms include oxidative stress, excitotoxicity, angiogenesis, neuroinflammation and apoptosis following retinal ischemia. We will also discuss the effect of neuroprotective agents in attenuation of the negative effect of factors involve in the disease occurrence and progression.
Collapse
|
16
|
Gao D, Azarias C, D'Aléo A, Giorgi M, Siri O, Balaban TS, Jacquemin D, Canard G. Synthesis and Characterization of Ruffled Phosphorusmeso-Ester Corroles. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601172] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Di Gao
- Aix Marseille Univ; CNRS; Centrale Marseille; 13288 Marseille Cedex 09 France
| | - Cloé Azarias
- Laboratoire CEISAM; Université de Nantes; CNRS; 2 rue de la Houssinière 44322 Nantes Cedex 03 France
| | - Anthony D'Aléo
- Aix Marseille Univ; CNRS; CINaM; Campus de Luminy, Case 913 13288 Marseille Cedex 09 France
| | - Michel Giorgi
- Aix Marseille Univ; Spectropole; 13288 Marseille Cedex 09 France
| | - Olivier Siri
- Aix Marseille Univ; CNRS; CINaM; Campus de Luminy, Case 913 13288 Marseille Cedex 09 France
| | | | - Denis Jacquemin
- Laboratoire CEISAM; Université de Nantes; CNRS; 2 rue de la Houssinière 44322 Nantes Cedex 03 France
- Institut Universitaire de France (IUF); 1 rue Descartes 75005 Paris Cedex 05 France
| | - Gabriel Canard
- Aix Marseille Univ; CNRS; CINaM; Campus de Luminy, Case 913 13288 Marseille Cedex 09 France
| |
Collapse
|
17
|
Levin LA, Crowe ME, Quigley HA. Neuroprotection for glaucoma: Requirements for clinical translation. Exp Eye Res 2016; 157:34-37. [PMID: 27955999 DOI: 10.1016/j.exer.2016.12.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Revised: 10/06/2016] [Accepted: 12/09/2016] [Indexed: 11/17/2022]
Abstract
Within the field of glaucoma research, neuroprotection is defined as slowing the functional loss in glaucoma by a mechanism independent of lowering of intraocular pressure. There is currently a great potential for research surrounding neuroprotection as it relates to glaucoma. Anatomical targets for neuroprotection should focus on upstream rather than downstream factors, and could include any part of the retinal ganglion cell, the glia, especially astrocytes or Muller cells, and vasculature. The great number of anatomical targets is exceeded only by the number of possible biochemical pathways and potential treatments. Successful treatment may be accomplished through the targeting of one or even a combination of multiple pathways. Once a treatment is shown effective in vitro, it should be evaluated in vivo with carefully chosen animal models and studied in sufficient numbers to detect statistically and clinically significant effects. Such a drug should have few systemic side effects and its delivery should be optimized so as to encourage compliance. There are still a multitude of possible screens available to test the efficacy of a neuroprotective drug and a single gold standard is ideal for the accurate assessment and comparison of new drugs. Future studies in neuroprotection should investigate the genetic component of the disease, novel pharmaceutical agents for new or known pathways, modulations of scleral biomechanics, and relation to research of other complex disorders of the central nervous system.
Collapse
Affiliation(s)
- Leonard A Levin
- Department of Ophthalmology, McGill University, Montreal, Quebec, Canada; Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.
| | - Megan E Crowe
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Harry A Quigley
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | |
Collapse
|
18
|
Abstract
Corroles are exceptionally promising platforms for the development of agents for simultaneous cancer-targeting imaging and therapy. Depending on the element chelated by the corrole, these theranostic agents may be tuned primarily for diagnostic or therapeutic function. Versatile synthetic methodologies allow for the preparation of amphipolar derivatives, which form stable noncovalent conjugates with targeting biomolecules. These conjugates can be engineered for imaging and targeting as well as therapeutic function within one theranostic assembly. In this review, we begin with a brief outline of corrole chemistry that has been uniquely useful in designing corrole-based anticancer agents. Then we turn attention to the early literature regarding corrole anticancer activity, which commenced one year after the first scalable synthesis was reported (1999-2000). In 2001, a major advance was made with the introduction of negatively charged corroles, as these molecules, being amphipolar, form stable conjugates with many proteins. More recently, both cellular uptake and intracellular trafficking of metallocorroles have been documented in experimental investigations employing advanced optical spectroscopic as well as magnetic resonance imaging techniques. Key results from work on both cellular and animal models are reviewed, with emphasis on those that have shed new light on the mechanisms associated with anticancer activity. In closing, we predict a very bright future for corrole anticancer research, as it is experiencing exponential growth, taking full advantage of recently developed imaging and therapeutic modalities.
Collapse
Affiliation(s)
- Ruijie D Teo
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Jae Youn Hwang
- Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science & Technology , Daegu, Republic of Korea
| | - John Termini
- Department of Molecular Medicine, Beckman Research Institute of the City of Hope , 1500 East Duarte Road, Duarte, California 91010, United States
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology , Haifa 32000, Israel
| | - Harry B Gray
- Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| |
Collapse
|
19
|
Soll M, Bar Am O, Mahammed A, Saltsman I, Mandel S, Youdim MBH, Gross Z. Neurorescue by a ROS Decomposition Catalyst. ACS Chem Neurosci 2016; 7:1374-1382. [PMID: 27442690 DOI: 10.1021/acschemneuro.6b00144] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The effect of the bis-sulfonated iron(III) corrole (1-Fe), a potent decomposition catalyst of reactive oxygen species, on rescuing SN4741 cells that were damaged by 6-hydroxydopamine (6-OHDA) was investigated as an in vitro model system for studying cell death of dopaminergic neurons in the substantia nigra. Important findings that accompanied the ability to rescue dopaminergic neurons were increased expression of phenotypic dopaminergic proteins, such as tyrosine hydroxylase (TH) and dopamine transporter (DAT), which were significantly depleted upon 6-OHDA-mediated damage. 1-Fe also elevated expression levels of aldehyde dehydrogenase 1 (ALDH-1), previously disclosed as a cardinal protein in the pathogenesis of Parkinson's disease. Since these findings suggested that 1-Fe affects quite a wide range of intracellular mechanisms, vital intracellular pathways that involve neuroplasticity, growth, differentiation and survival of neurons, were examined. Phosphatidylinositol 3-kinase (PI3K) and protein kinase c (PKC) were found to be involved, as pharmacological inhibitors of these kinases abolished the neurorescue effect of 1-Fe. 1-Fe also elevated the expression of antiapoptotic protein Bcl-2, which is essential for proper mitochondrial function and cellular survival. The overall conclusion is that 1-Fe is capable of rescuing already damaged neuronal cells by a variety of mechanisms that are beyond its antioxidant activity.
Collapse
Affiliation(s)
- Matan Soll
- Schulich Faculty of Chemistry, and ‡Ruth & Bruce Rappaport Faculty of Medicine, Technion − Israel Institute of Technology, Haifa 32000, Israel
| | - Orit Bar Am
- Schulich Faculty of Chemistry, and ‡Ruth & Bruce Rappaport Faculty of Medicine, Technion − Israel Institute of Technology, Haifa 32000, Israel
| | - Atif Mahammed
- Schulich Faculty of Chemistry, and ‡Ruth & Bruce Rappaport Faculty of Medicine, Technion − Israel Institute of Technology, Haifa 32000, Israel
| | - Irena Saltsman
- Schulich Faculty of Chemistry, and ‡Ruth & Bruce Rappaport Faculty of Medicine, Technion − Israel Institute of Technology, Haifa 32000, Israel
| | - Silvia Mandel
- Schulich Faculty of Chemistry, and ‡Ruth & Bruce Rappaport Faculty of Medicine, Technion − Israel Institute of Technology, Haifa 32000, Israel
| | - Moussa B. H. Youdim
- Schulich Faculty of Chemistry, and ‡Ruth & Bruce Rappaport Faculty of Medicine, Technion − Israel Institute of Technology, Haifa 32000, Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry, and ‡Ruth & Bruce Rappaport Faculty of Medicine, Technion − Israel Institute of Technology, Haifa 32000, Israel
| |
Collapse
|
20
|
Teo RD, Dong SS, Gross Z, Gray HB, Goddard WA. Computational predictions of corroles as a class of Hsp90 inhibitors. MOLECULAR BIOSYSTEMS 2016; 11:2907-14. [PMID: 26252737 DOI: 10.1039/c5mb00352k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Corroles have been shown experimentally to cause cell cycle arrest, and there is some evidence that this might be attributed to an inhibitory effect of corroles on Heat shock protein 90 (Hsp90), which is known to play a vital role in cancer cell proliferation. In this study, we used molecular dynamics to examine the interaction of gallium corroles with Hsp90, and found that they can bind preferentially to the ATP-binding N-terminal site. We also found that structural variations of the corrole ring can influence the binding energies and affinities of the corrole to Hsp90. We predict that both the bis-carboxylated corrole (4-Ga) and a proposed 3,17-bis-sulfonated corrole (7-Ga) are promising alternatives to Ga(III) 5,10,15-tris(pentafluorophenyl)-2,17-bis(sulfonic acid)-corrole (1-Ga) as anti-cancer agents.
Collapse
Affiliation(s)
- Ruijie D Teo
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, USA.
| | | | | | | | | |
Collapse
|
21
|
Niemuth NJ, Thompson AF, Crowe ME, Lieven CJ, Levin LA. Intracellular disulfide reduction by phosphine-borane complexes: Mechanism of action for neuroprotection. Neurochem Int 2016; 99:24-32. [PMID: 27264910 DOI: 10.1016/j.neuint.2016.05.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 05/23/2016] [Accepted: 05/31/2016] [Indexed: 01/02/2023]
Abstract
Phosphine-borane complexes are novel cell-permeable drugs that protect neurons from axonal injury in vitro and in vivo. These drugs activate the extracellular signal-regulated kinases 1/2 (ERK1/2) cell survival pathway and are therefore neuroprotective, but do not scavenge superoxide. In order to understand the interaction between superoxide signaling of neuronal death and the action of phosphine-borane complexes, their biochemical activity in cell-free and in vitro assays was studied by electron paramagnetic resonance (EPR) spectrometry and using an intracellular dithiol reporter that becomes fluorescent when its disulfide bond is cleaved. These studies demonstrated that bis(3-propionic acid methyl ester) phenylphosphine-borane complex (PB1) and (3-propionic acid methyl ester) diphenylphosphine-borane complex (PB2) are potent intracellular disulfide reducing agents which are cell permeable. EPR and pharmacological studies demonstrated reducing activity but not scavenging of superoxide. Given that phosphine-borane complexes reduce cell injury from mitochondrial superoxide generation but do not scavenge superoxide, this implies a mechanism where an intracellular superoxide burst induces downstream formation of protein disulfides. The redox-dependent cleavage of the disulfides is therefore a novel mechanism of neuroprotection.
Collapse
Affiliation(s)
- Nicholas J Niemuth
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, United States
| | - Alex F Thompson
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, United States
| | - Megan E Crowe
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, United States
| | - Christopher J Lieven
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, United States
| | - Leonard A Levin
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, United States; Departments of Ophthalmology and Neurology, McGill University, Canada
| |
Collapse
|
22
|
Affiliation(s)
- Ines Batinic-Haberle
- 1 Department of Radiation Oncology, Duke University School of Medicine , Durham, North Carolina
| | - Artak Tovmasyan
- 1 Department of Radiation Oncology, Duke University School of Medicine , Durham, North Carolina
| | - Ivan Spasojevic
- 2 Department of Medicine, Duke University School of Medicine , Durham, North Carolina.,3 Department of PK/PD Core Laboratory, Pharmaceutical Research Shared Resource, Duke Cancer Institute, Duke University School of Medicine , Durham, North Carolina
| |
Collapse
|
23
|
Superoxide generation explains common features of optic neuropathies associated with cecocentral scotomas. J Neuroophthalmol 2016; 35:152-60. [PMID: 25985432 DOI: 10.1097/wno.0000000000000250] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
I have presented above a hypothesis that ties together several disparate optic neuropathies, all characterized by a similar clinical presentation. The hypothesis is predicated on the formation of intracellular superoxide within RGCs as a common pathological pathway for the type of cell death that occurs. The anatomical predisposition of the papillomacular bundle to have elevated superoxide levels is tied to the size of the fibers involved, a hypothesis that also implicates the crossing fibers of the chiasm. Much of this work is speculative and is an interpretation of several experimental studies that have been performed to date. Hopefully, this hypothesis will be developed further, and its validity tested in both experimental models and, ultimately, in humans.
Collapse
|
24
|
Fischer S, Vestfrid J, Mahammed A, Herrmann-Westendorf F, Schulz M, Müller J, Kiesewetter O, Dietzek B, Gross Z, Presselt M. Photometric Detection of Nitric Oxide Using a Dissolved Iron(III) Corrole as a Sensitizer. Chempluschem 2016; 81:594-603. [DOI: 10.1002/cplu.201500553] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Indexed: 01/04/2023]
Affiliation(s)
- Stefan Fischer
- Institute of Physical Chemistry; Friedrich Schiller University Jena; Helmholtzweg 4 07743 Jena Germany
- Leibniz Institute of Photonic Technology (IPHT); Albert-Einstein-Strasse 9 07745 Jena Germany
| | - Jenya Vestfrid
- Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Atif Mahammed
- Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Felix Herrmann-Westendorf
- Institute of Physical Chemistry; Friedrich Schiller University Jena; Helmholtzweg 4 07743 Jena Germany
- Leibniz Institute of Photonic Technology (IPHT); Albert-Einstein-Strasse 9 07745 Jena Germany
| | - Martin Schulz
- Institute of Physical Chemistry; Friedrich Schiller University Jena; Helmholtzweg 4 07743 Jena Germany
- Leibniz Institute of Photonic Technology (IPHT); Albert-Einstein-Strasse 9 07745 Jena Germany
| | - Jürgen Müller
- UST Umweltsensortechnik GmbH; Dieselstrasse 2 and 4 98716 Geschwenda Germany
| | - Olaf Kiesewetter
- UST Umweltsensortechnik GmbH; Dieselstrasse 2 and 4 98716 Geschwenda Germany
| | - Benjamin Dietzek
- Institute of Physical Chemistry; Friedrich Schiller University Jena; Helmholtzweg 4 07743 Jena Germany
- Leibniz Institute of Photonic Technology (IPHT); Albert-Einstein-Strasse 9 07745 Jena Germany
| | - Zeev Gross
- Schulich Faculty of Chemistry; Technion-Israel Institute of Technology; Haifa 32000 Israel
| | - Martin Presselt
- Institute of Physical Chemistry; Friedrich Schiller University Jena; Helmholtzweg 4 07743 Jena Germany
- Leibniz Institute of Photonic Technology (IPHT); Albert-Einstein-Strasse 9 07745 Jena Germany
| |
Collapse
|
25
|
Herrero C, Quaranta A, Ricoux R, Trehoux A, Mahammed A, Gross Z, Banse F, Mahy JP. Oxidation catalysis via visible-light water activation of a [Ru(bpy)3]2+ chromophore BSA–metallocorrole couple. Dalton Trans 2016; 45:706-10. [DOI: 10.1039/c5dt04158a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Light induced enantioselective oxidation of thioanisole with water as the oxygen atom source is catalyzed by a Mn-corrole–BSA artificial metalloenzyme in the presence of a photoactivable ruthenium complex.
Collapse
Affiliation(s)
- Christian Herrero
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Université Paris Sud. F-91405
- Orsay CEDEX
- France
| | | | - Rémy Ricoux
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Université Paris Sud. F-91405
- Orsay CEDEX
- France
| | - Alexandre Trehoux
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Université Paris Sud. F-91405
- Orsay CEDEX
- France
| | - Atif Mahammed
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry
- Technion-Israel Institute of Technology
- Haifa 32000
- Israel
| | - Frédéric Banse
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Université Paris Sud. F-91405
- Orsay CEDEX
- France
| | - Jean-Pierre Mahy
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Université Paris Sud. F-91405
- Orsay CEDEX
- France
| |
Collapse
|
26
|
Chien JY, Sheu JH, Wen ZH, Tsai RK, Huang SP. Neuroprotective effect of 4-(Phenylsulfanyl)butan-2-one on optic nerve crush model in rats. Exp Eye Res 2015; 143:148-57. [PMID: 26472213 DOI: 10.1016/j.exer.2015.10.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 08/18/2015] [Accepted: 10/05/2015] [Indexed: 10/22/2022]
Abstract
This study is to investigate the effect of coral-related compound, 4-(phenylsulfanyl)butan-2-one (4-PSB-2) on optic nerves (ON) and retinal ganglion cells (RGC) in a rat model subjected to ON crush. The ONs of adult male Wistar rat (150-180 g) were crushed by a standardized method. The control eyes received a sham operation. 4-PSB-2 (5 mg/kg in 0.2 mL phosphate-buffered saline) or phosphate-buffered saline (PBS control) was immediately administered after ON crush once by subcutaneous injection. Rats were euthanized at 2 weeks after the crush injury. RGC density was counted by retrograde labeling with FluoroGold (FG) application to the superior colliculus, and visual function was assessed by flash visual evoked potentials (FVEP). TUNEL assay, immunoblotting analysis of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX2) in the retinas, and immunohistochemistry of ED1 in the ON were evaluated. Two weeks after the insult, the RGC densities in the central and mid-peripheral retinas in ON-crushed, 4-PSB-2-treated rats were significantly higher than that of the corresponding ON-crushed, PBS-treated rats FVEP measurements showed a significantly better preserved latency of the P1 wave in the ON-crushed, 4-PSB-2-treated rats than the ON-crushed, PBS treated rats. TUNEL assays showed fewer TUNEL positive cells in the ON-crushed, 4-PSB-2-treated rats. The number of ED1 positive cells was reduced at the lesion site of the optic nerve in the ON-crushed, 4-PSB-2-treated group. Furthermore, administration of 4-PSB-2 significantly attenuated ON crush insult-stimulated iNOS and COX2 expression in the retinas. These results demonstrated that 4-PSB-2 protects RGCs and helps preserve the visual function in the rat model of optic nerve crush. 4-PSB-2 may work by being anti-apoptotic and by attenuation of the inflammatory responses involving less ED1 positive cells infiltration in ON as well as suppression of iNOS/COX-2 signaling pathway in the retinas to rescue RGCs after ON crush injury.
Collapse
Affiliation(s)
- Jia-Ying Chien
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan
| | - Jyh-Horng Sheu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Rong-Kung Tsai
- Institute of Eye Research, Buddhist Tzu Chi General Hospital, Hualien, Taiwan; Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.
| | - Shun-Ping Huang
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan.
| |
Collapse
|
27
|
Sims JD, Hwang JY, Wagner S, Alonso-Valenteen F, Hanson C, Taguiam JM, Polo R, Harutyunyan I, Karapetyan G, Sorasaenee K, Ibrahim A, Marban E, Moats R, Gray HB, Gross Z, Medina-Kauwe LK. A corrole nanobiologic elicits tissue-activated MRI contrast enhancement and tumor-targeted toxicity. J Control Release 2015; 217:92-101. [PMID: 26334483 DOI: 10.1016/j.jconrel.2015.08.046] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 08/10/2015] [Accepted: 08/24/2015] [Indexed: 01/11/2023]
Abstract
Water-soluble corroles with inherent fluorescence can form stable self-assemblies with tumor-targeted cell penetration proteins, and have been explored as agents for optical imaging and photosensitization of tumors in pre-clinical studies. However, the limited tissue-depth of excitation wavelengths limits their clinical applicability. To examine their utility in more clinically-relevant imaging and therapeutic modalities, here we have explored the use of corroles as contrast enhancing agents for magnetic resonance imaging (MRI), and evaluated their potential for tumor-selective delivery when encapsulated by a tumor-targeted polypeptide. We have found that a manganese-metallated corrole exhibits significant T1 relaxation shortening and MRI contrast enhancement that is blocked by particle formation in solution but yields considerable MRI contrast after tissue uptake. Cell entry but not low pH enables this. Additionally, the corrole elicited tumor-toxicity through the loss of mitochondrial membrane potential and cytoskeletal breakdown when delivered by the targeted polypeptide. The protein-corrole particle (which we call HerMn) exhibited improved therapeutic efficacy compared to current targeted therapies used in the clinic. Taken together with its tumor-preferential biodistribution, our findings indicate that HerMn can facilitate tumor-targeted toxicity after systemic delivery and tumor-selective MR imaging activatable by internalization.
Collapse
Affiliation(s)
- Jessica D Sims
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jae Youn Hwang
- Daegu Gyeongbuk Institute of Science & Technology, Daegu, Republic of Korea
| | - Shawn Wagner
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | | | - Chris Hanson
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Jan Michael Taguiam
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Richard Polo
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Ira Harutyunyan
- Translational Biomedical Imaging Laboratory, Department of Radiology, The Saban Reseach Institute, Children's Hospital, Keck Medical School of USC, Los Angeles, USA
| | - Gevorg Karapetyan
- Translational Biomedical Imaging Laboratory, Department of Radiology, The Saban Reseach Institute, Children's Hospital, Keck Medical School of USC, Los Angeles, USA
| | - Karn Sorasaenee
- Translational Biomedical Imaging Laboratory, Department of Radiology, The Saban Reseach Institute, Children's Hospital, Keck Medical School of USC, Los Angeles, USA
| | - Ahmed Ibrahim
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Eduardo Marban
- Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Rex Moats
- Translational Biomedical Imaging Laboratory, Department of Radiology, The Saban Reseach Institute, Children's Hospital, Keck Medical School of USC, Los Angeles, USA
| | - Harry B Gray
- Department of Chemistry, California Institute of Technology, Pasadena, CA, USA
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion-Israel Institute, Haifa, Israel
| | - Lali K Medina-Kauwe
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA; Geffen School of Medicine, University of California-Los Angeles, USA.
| |
Collapse
|
28
|
Stefanelli M, Mandoj F, Nardis S, Raggio M, Fronczek FR, McCandless GT, Smith KM, Paolesse R. Corrole and nucleophilic aromatic substitution are not incompatible: a novel route to 2,3-difunctionalized copper corrolates. Org Biomol Chem 2015; 13:6611-8. [PMID: 25986693 PMCID: PMC4454397 DOI: 10.1039/c5ob00659g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The insertion of a -NO2 group onto the corrole framework represents a key step for subsequent synthetic manipulation of the macrocycle based on the chemical versatility of such a functionality. Here we report results of the investigation of a copper 3-NO2-triarylcorrolate in nucleophilic aromatic substitution reactions with "active" methylene carbanions, namely diethyl malonate and diethyl 2-chloromalonate. Although similar reactions on nitroporphyrins afford chlorin derivatives, nucleophilic attack on carbon-2 of corrole produces 2,3-difunctionalized Cu corrolates in acceptable yields (ca. 30%), evidencing once again the erratic chemistry of this contracted porphyrinoid.
Collapse
Affiliation(s)
- M Stefanelli
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, 00133 Roma, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
29
|
Haber A, Gross Z. Catalytic antioxidant therapy by metallodrugs: lessons from metallocorroles. Chem Commun (Camb) 2015; 51:5812-27. [DOI: 10.1039/c4cc08715a] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This article provides a perspective on the utility of metal-based catalytic antioxidants for disease prevention or treatment, with focus on their mode of action and its dependence (DCA) or independence (ICA) on the involvement of cofactors.
Collapse
Affiliation(s)
- Adi Haber
- Schulich Faculty of Chemistry
- Technion – Israel Institute of Technology
- Technion City
- Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry
- Technion – Israel Institute of Technology
- Technion City
- Israel
| |
Collapse
|
30
|
Strategies for delivering porphyrinoid-based photosensitizers in therapeutic applications. Ther Deliv 2014; 5:859-72. [DOI: 10.4155/tde.14.46] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Delivery strategies for porphyrinoid-based photosensitizers for use in therapeutic applications are based on a myriad of factors, which include porphyrinoid structure, solubility and cellular targets. These drug-delivery methods include encapsulation, hydrogels, protein carriers, nanoparticles and polymeric micelles among others. This article reviews the strategies for delivering porphyrinoids published to date and will focus on porphyrins, corroles, chlorins, bacteriochlorins, porphyrazines and phthalocyanines. Highlighted are the most recent and different strategies used for each of the corresponding porphyrinoid-based macrocycles.
Collapse
|
31
|
|
32
|
Wang AL, Carroll RC, Nawy S. Down-regulation of the RNA editing enzyme ADAR2 contributes to RGC death in a mouse model of glaucoma. PLoS One 2014; 9:e91288. [PMID: 24608178 PMCID: PMC3946738 DOI: 10.1371/journal.pone.0091288] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 02/11/2014] [Indexed: 12/13/2022] Open
Abstract
Glaucoma is a progressive neurodegenerative disease of retinal ganglion cells (RGCs) associated with characteristic axon degeneration in the optic nerve. Excitotoxic damage due to increased Ca(2+) influx, possibly through NMDA-type glutamate receptors, has been proposed to be a cause of RGC dysfunction and death in glaucoma. Recent work has found that expression of another potentially critical receptor, the Ca(2+)-permeable AMPA receptor (CP-AMPAR), is elevated during various pathological conditions (including ALS and ischemia), resulting in increased neuronal death. Here we test the hypothesis that CP-AMPARs contribute to RGC death due to elevated Ca(2+) influx in glaucoma. AMPA receptors are impermeable to Ca(2+) if the tetrameric receptor contains a GluA2 subunit that has undergone Q/R RNA editing at a site in the pore region. The activity of ADAR2, the enzyme responsible for this RNA editing, generally ensures that the vast majority of GluA2 proteins are edited. Here, we demonstrate that ADAR2 levels decrease in a mouse model of glaucoma in which IOP is chronically elevated. Furthermore, using an in vitro model of RGCs, we find that knockdown of ADAR2 using siRNA increased the accumulation of Co(2+) in response to glutamate, and decreased the rectification index of AMPA currents detected electrophysiologically, indicating an increased Ca(2+) permeability through AMPARs. The RGCs in primary culture also exhibited increased excitotoxic cell death following knock down of ADAR2. Furthermore, cell death was reversed by NASPM, a specific blocker for CP-AMPARs. Together, our data suggest that chronically elevated IOP in adult mice reduces expression of the ADAR2 enzyme, and the loss of ADAR2 editing and subsequent disruption of GluA2 RNA editing might potentially play a role in promoting RGC neuronal death as observed in glaucoma.
Collapse
Affiliation(s)
- Ai Ling Wang
- Department of Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Reed C. Carroll
- Department of Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, New York, United States of America
| | - Scott Nawy
- Department of Ophthalmology and Visual Sciences, Albert Einstein College of Medicine, Bronx, New York, United States of America
- * E-mail:
| |
Collapse
|
33
|
Tachikawa H. Electron detachment dynamics of O2−(H2O): direct ab initio molecular dynamics (AIMD) approach. RSC Adv 2014. [DOI: 10.1039/c3ra45753b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
34
|
Sera from patients with seropositive neuromyelitis optica spectral disorders caused the degeneration of rodent optic nerve. Exp Eye Res 2013; 119:61-9. [PMID: 24374258 DOI: 10.1016/j.exer.2013.12.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 10/12/2013] [Accepted: 12/12/2013] [Indexed: 11/22/2022]
Abstract
Neuromyelitis optica (NMO) is an autoimmune inflammatory, neurodestructive disease primarily targeting the optic nerve and spinal cord. An autoantibody against water channel protein aquaporin-4 (AQP4), which is expressed at endofeet of astrocytes has been implicated in the pathogenesis of NMO. We evaluated the impact of sera of seropositive patients with NMO spectrum disorders (NMOSDs) on the rodent optic nerve and retina. Serum was obtained either from patients with seropositive NMOSD (AQP4+), seronegative patient with idiopathic optic neuritis (AQP4-), and healthy volunteers (control). Anti-AQP4 antibody in a serum was measured by a previously established cell-based assay. The patients' sera were applied on the optic nerve after de-sheathed. Immunohistochemistry showed that at 7 days after the treatment, the area of the optic nerve exposed to the AQP4+ sera lost expression of both AQP4 and glial fibrillary acidic protein. Also, Human-IgG immunoreactivity and marked invasion of inflammation cells were observed in the optic nerve treated with AQP4+ serum. Immnoreactivity of neurofilament was reduced at 14 days after the treatment, not 7 days. Real-time polymerase chain reaction revealed the reduced gene expression of neurofilament in retina from the eye that was exposed to the AQP4+ sera at 14 days. Retrograde fluorogold-labeling on the retinal flatmount disclosed the significantly reduced number of retinal ganglion cells when the AQP4+ sera were applied. The present model has demonstrated that the sera from patients with seropositive NMOSDs led to the regional astrocytic degeneration and inflammatory cell invasion in the optic nerve, resulting in the ultimate loss of RGCs and their axons at areas beyond the injury site.
Collapse
|
35
|
Abstract
The β-nitration reaction carried out on the corrole macrocycle has been shown to be extremely regioselective, although the reduced symmetry of the macrocycle could potentially lead to a huge number of possible regioisomers. We recently reported that the careful use of AgNO2/NaNO2 as a nitrating system enabled the achievement in good yields of mono- and dinitro-derivatives on both corrole free base and its copper complex, proving to be an efficient and cost-effective method. In this work, we present a detailed study of the scope of this method using TtBuCorrH3 as a model corrole. A further increase of the oxidant pushes the nitration up to the functionalization of three β-pyrrolic positions, although concomitant decomposition of the macrocycle is also observed. The application of the proven nitration method with a five-fold excess of both silver and sodium nitrites with respect to corrole, afforded the 2,3,17-(NO2)3-TtBuPCorrCu as the main product, in 25% yield, together with traces of another compound identified by X-ray crystallographic analysis as the 3,8,17-(NO2)3-TtBuPCorrCu isomer. In light of these recent results, we also reinvestigated the characterization of the nitration products obtained from bis-substitution reactions, allowing among others the identification of the copper 3,8-(NO2)2 corrolate.
Collapse
Affiliation(s)
- Manuela Stefanelli
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, 00133 Roma, Italy
| | | | | | | | | |
Collapse
|
36
|
Yuki K, Yoshida T, Miyake S, Tsubota K, Ozawa Y. Neuroprotective role of superoxide dismutase 1 in retinal ganglion cells and inner nuclear layer cells against N-methyl-d-aspartate-induced cytotoxicity. Exp Eye Res 2013; 115:230-8. [PMID: 23856406 DOI: 10.1016/j.exer.2013.07.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Revised: 06/28/2013] [Accepted: 07/02/2013] [Indexed: 01/12/2023]
Abstract
The N-methyl-d-aspartate (NMDA) receptor-induced apoptosis is implicated in the pathological mechanisms of neural tissues, increasing the release of reactive oxygen species (ROS), resulting in a type of apoptotic cell death called excitotoxicity. Although intrinsic mechanisms to remove ROS, such as antioxidant enzymes, are provided by the tissue, the association between NMDA-induced excitotoxicity and antioxidative enzymes is not well understood. In this study, we focused on superoxide dismutase 1 (SOD1), an antioxidant enzyme, and investigated the role of SOD1 in the NMDA-induced neuronal cell death in the retina. NMDA was intravitreally injected into wild-type (WT) and SOD1 total knock-out (SOD1-deficient) mice. The number of TUNEL-positive cells in the retinal ganglion cell layer (GCL) and inner nuclear layer (INL) counted in the retinal sections and flatmount retinas were significantly higher in the SOD1-deficient mice than the WT mice after NMDA injection. Visual function assessed by dark-adapted electroretinogram (ERG) showed that the amplitudes of a-wave, b-wave, and oscillatory potential 2 were significantly reduced in the NMDA-injected SOD1-deficient mice. The level of ROS in the GCL and INL, measured using dihydroethidium, and the number of positive cells for γ-H2AX, a marker for DNA double strand breaks, and 8-OHdG, a marker for DNA oxidation, in the GCL were significantly increased in the SOD1-deficient mice after NMDA injection. We also measured mRNA and protein levels of SOD1 and SOD2 in the retina of WT mice, to find that mRNA and protein levels of SOD1, but not SOD2, were significantly reduced after NMDA injection. SOD1 deficiency exacerbated NMDA-induced damage to the inner retinal neurons, and NMDA reduced SOD1 levels in the retina of WT mice. Therefore, SOD1 protected retinal neurons against NMDA-induced retinal neurotoxicity, and NMDA-induced SOD1 reduction may be involved in neuronal vulnerability to excitotoxicity.
Collapse
Affiliation(s)
- Kenya Yuki
- Laboratory of Retinal Cell Biology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan; Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | | | | | | | | |
Collapse
|
37
|
Water-soluble metalated and non-metalated A2
B- and A3
-corrole/amino acid conjugates: syntheses, characterization and properties. Appl Organomet Chem 2013. [DOI: 10.1002/aoc.2992] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
38
|
Liu HY, Mahmood MHR, Qiu SX(S, Chang CK. Recent developments in manganese corrole chemistry. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.12.017] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
39
|
Li BQ, Fang SH, Dong X, Li N, Gao JY, Yang GQ, Gong XC, Wang SJ, Wang FS. Pharmacokinetics, tissue distribution and excretion of manganese (III) meso-tetra [3-(2-(2-methoxy)-ethoxy) ethoxy] phenyl porphyrin chloride, a novel superoxide dismutase mimic, in Wistar rats. Eur J Drug Metab Pharmacokinet 2013; 38:245-53. [DOI: 10.1007/s13318-013-0118-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 01/07/2013] [Indexed: 11/28/2022]
|
40
|
Dulbecco’s Modified Eagle Medium is neuroprotective when compared to standard vitrectomy irrigation solution. Graefes Arch Clin Exp Ophthalmol 2013; 251:1613-9. [DOI: 10.1007/s00417-012-2255-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 12/13/2012] [Accepted: 12/24/2012] [Indexed: 01/10/2023] Open
|
41
|
Lieven CJ, Thurber KA, Levin EJ, Levin LA. Ordering of neuronal apoptosis signaling: a superoxide burst precedes mitochondrial cytochrome c release in a growth factor deprivation model. Apoptosis 2012; 17:591-9. [PMID: 22411528 DOI: 10.1007/s10495-012-0714-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Axonal injury to retinal ganglion cells, a defined central neuron, induces a burst of intracellular superoxide anion that precedes externalization of membrane phosphatidylserine and subsequent apoptotic cell death. Dismutation of superoxide prevents the signal and delays loss of these cells, consistent with superoxide being necessary for transduction of the axotomy signal. However, phosphatidylserine externalization is a relatively late step in apoptosis, and it is possible that the superoxide burst is not an early axotomy signal but rather a result of cytochrome c release from the mitochondrial inner membrane with consequent accumulation of reduced intermediates. Other possibilities are that both superoxide generation and cytochrome c release are induced in parallel by axotomy, or that cytochrome c release potentiates the effect of the superoxide burst. To distinguish these various possibilities, serum-deprived neuronal retinal cells were assayed in vitro for superoxide elevation and release of cytochrome c from mitochondria, and the distribution of these two markers across a large number of cells used to model the temporal ordering of events. Based on this model of factor-dependent cell death, superoxide precedes, and possibly potentiates, cytochrome c release, and thus the former is likely an early signal for certain types of neuronal apoptosis in the central nervous system.
Collapse
Affiliation(s)
- Christopher J Lieven
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53792, USA
| | | | | | | |
Collapse
|
42
|
Tovmasyan A, Sheng H, Weitner T, Arulpragasam A, Lu M, Warner DS, Vujaskovic Z, Spasojevic I, Batinic-Haberle I. Design, mechanism of action, bioavailability and therapeutic effects of mn porphyrin-based redox modulators. Med Princ Pract 2012; 22:103-30. [PMID: 23075911 PMCID: PMC3640855 DOI: 10.1159/000341715] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Accepted: 07/01/2012] [Indexed: 12/18/2022] Open
Abstract
Based on aqueous redox chemistry and simple in vivo models of oxidative stress, Escherichia coli and Saccharomyces cerevisiae, the cationic Mn(III) N-substituted pyridylporphyrins (MnPs) have been identified as the most potent cellular redox modulators within the porphyrin class of drugs; their efficacy in animal models of diseases that have oxidative stress in common is based on their high ability to catalytically remove superoxide, peroxynitrite, carbonate anion radical, hypochlorite, nitric oxide, lipid peroxyl and alkoxyl radicals, thus suppressing the primary oxidative event. While doing so MnPs could couple with cellular reductants and redox-active proteins. Reactive species are widely accepted as regulators of cellular transcriptional activity: minute, nanomolar levels are essential for normal cell function, while submicromolar or micromolar levels impose oxidative stress, which is evidenced in increased inflammatory and immune responses. By removing reactive species, MnPs affect redox-based cellular transcriptional activity and consequently secondary oxidative stress, and in turn inflammatory processes. The equal ability to reduce and oxidize superoxide during the dismutation process and recently accumulated results suggest that pro-oxidative actions of MnPs may also contribute to their therapeutic effects. All our data identify the superoxide dismutase-like activity, estimated by log k(cat)O2-*), as a good measure for the therapeutic efficacy of MnPs. Their accumulation in mitochondria and their ability to cross the blood-brain barrier contribute to their remarkable efficacy. We summarize herein the therapeutic effects of MnPs in cancer, central nervous system injuries, diabetes, their radioprotective action and potential for imaging. Few of the most potent modulators of cellular redox-based pathways, MnTE2-PyP5+, MnTDE-2-ImP5+, MnTnHex-2-PyP5+ and MnTnBuOE-2-PyP5+, are under preclinical and clinical development.
Collapse
Affiliation(s)
- Artak Tovmasyan
- Department of Radiation Oncology, Duke University Medical
Center, Durham, N.C., USA
| | - Huaxin Sheng
- Department of Anesthesiology, Duke University Medical Center,
Durham, N.C., USA
- Department of Multidisciplinary Neuroprotection Laboratories,
Duke University Medical Center, Durham, N.C., USA
| | - Tin Weitner
- Department of Radiation Oncology, Duke University Medical
Center, Durham, N.C., USA
| | - Amanda Arulpragasam
- Department of Duke University Neuroscience Undergraduate
Program, Duke University Medical Center, Durham, N.C., USA
| | - Miaomiao Lu
- Department of Anesthesiology, Duke University Medical Center,
Durham, N.C., USA
- Department of Multidisciplinary Neuroprotection Laboratories,
Duke University Medical Center, Durham, N.C., USA
- Department of Department of Anesthesiology, Second Affiliated
Hospital, Zhengzhou University, Zhengzhou, China
| | - David S. Warner
- Department of Anesthesiology, Duke University Medical Center,
Durham, N.C., USA
- Department of Multidisciplinary Neuroprotection Laboratories,
Duke University Medical Center, Durham, N.C., USA
| | - Zeljko Vujaskovic
- Department of Radiation Oncology, Duke University Medical
Center, Durham, N.C., USA
| | - Ivan Spasojevic
- Department of Medicine, Duke University Medical Center, Durham,
N.C., USA
| | - Ines Batinic-Haberle
- Department of Radiation Oncology, Duke University Medical
Center, Durham, N.C., USA
| |
Collapse
|
43
|
Ngo TH, Nastasi F, Puntoriero F, Campagna S, Dehaen W, Maes W. Corrole-Porphyrin Conjugates with Interchangeable Metal Centers. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200836] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
44
|
Okun Z, Gross Z. Fine Tuning the Reactivity of Corrole-Based Catalytic Antioxidants. Inorg Chem 2012; 51:8083-90. [DOI: 10.1021/ic300408s] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Zoya Okun
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| |
Collapse
|
45
|
Singh P, Saltsman I, Mahammed A, Goldberg I, Tumanskii B, Gross Z. Iron complexes of tris(4-nitrophenyl)corrole, with emphasis on the (nitrosyl)iron complex. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424612500605] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The iron complexes of 5,10,15-tris(4-nitrophenyl)corrole have been prepared and characterized by various spectroscopic techniques. The (nitrosyl)iron complex is diamagnetic and its X-ray structure reveals an almost perfectly linear Fe–N–O bond. EPR spectroscopy in conjunction with 15N labelling were used to deduce the redox centre of the one-electron reduction and oxidation products of the (nitrosyl)iron corrole.
Collapse
Affiliation(s)
- Pinky Singh
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Irena Saltsman
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Atif Mahammed
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Israel Goldberg
- School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel
| | - Boris Tumanskii
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Zeev Gross
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| |
Collapse
|
46
|
Stefanelli M, Pomarico G, Tortora L, Nardis S, Fronczek FR, McCandless GT, Smith KM, Manowong M, Fang Y, Chen P, Kadish KM, Rosa A, Ricciardi G, Paolesse R. β-Nitro-5,10,15-tritolylcorroles. Inorg Chem 2012; 51:6928-42. [PMID: 22668242 DOI: 10.1021/ic3007926] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Functionalization of the β-pyrrolic positions of the corrole macrocycle with -NO(2) groups is limited at present to metallocorrolates due to the instability exhibited by corrole free bases under oxidizing conditions. A careful choice of the oxidant can limit the transformation of corroles into decomposition products or isocorrole species, preserving the corrole aromaticity, and thus allowing the insertion of nitro groups onto the corrole framework. Here we report results obtained by reacting 5,10,15-tritolylcorrole (TTCorrH(3)) with the AgNO(2)/NaNO(2) system, to give mono- and dinitrocorrole derivatives when stoichiometry is carefully controlled. Reactions were found to be regioselective, affording the 3-NO(2)TTCorrH(3) and 3,17-(NO(2))(2)TTCorrH(3) isomers as the main products in the case of mono- and disubstitution, in 53 and 20% yields, respectively. In both cases, traces of other mono- and disubstituted isomers were detected, which were structurally characterized by X-ray crystallography. The influence of the β-nitro substituents on the corrole properties is studied in detail by UV-visible, electrochemical, and spectroelectrochemical characterization of these functionalized corroles. Density functional theory (DFT) and time-dependent DFT (TDDFT) calculations of the ground and excited state properties of these β-nitrocorrole derivatives also afforded significant information, closely matching the experimental observations. It is found that the β-NO(2) substituents conjugate with the π-aromatic system of the macrocycle, which initiates significant changes in both the spectroscopic and redox properties of the so functionalized corroles. This effect is more pronounced when the nitro group is introduced at the 2-position, because in this case the conjugation is, for steric reasons, more efficient than in the 3-nitro isomer.
Collapse
Affiliation(s)
- Manuela Stefanelli
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, 00133 Roma, Italy
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Nickells RW, Howell GR, Soto I, John SWM. Under pressure: cellular and molecular responses during glaucoma, a common neurodegeneration with axonopathy. Annu Rev Neurosci 2012; 35:153-79. [PMID: 22524788 DOI: 10.1146/annurev.neuro.051508.135728] [Citation(s) in RCA: 227] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Glaucoma is a complex neurodegenerative disorder that is expected to affect 80 million people by the end of this decade. Retinal ganglion cells (RGCs) are the most affected cell type and progressively degenerate over the course of the disease. RGC axons exit the eye and enter the optic nerve by passing through the optic nerve head (ONH). The ONH is an important site of initial damage in glaucoma. Higher intraocular pressure (IOP) is an important risk factor for glaucoma, but the molecular links between elevated IOP and axon damage in the ONH are poorly defined. In this review and focusing primarily on the ONH, we discuss recent studies that have contributed to understanding the etiology and pathogenesis of glaucoma. We also identify areas that require further investigation and focus on mechanisms identified in other neurodegenerations that may contribute to RGC dysfunction and demise in glaucoma.
Collapse
Affiliation(s)
- Robert W Nickells
- Department of Ophthalmology and Visual Sciences, University of Wisconsin, Madison, Wisconsin 53706, USA.
| | | | | | | |
Collapse
|
48
|
Nardis S, Stefanelli M, Mohite P, Pomarico G, Tortora L, Manowong M, Chen P, Kadish KM, Fronczek FR, McCandless GT, Smith KM, Paolesse R. β-Nitro derivatives of iron corrolates. Inorg Chem 2012; 51:3910-20. [PMID: 22394192 PMCID: PMC3307940 DOI: 10.1021/ic3002459] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two different methods for the regioselective nitration of different meso-triarylcorroles leading to the corresponding β-substituted nitrocorrole iron complexes have been developed. A two-step procedure affords three Fe(III) nitrosyl products-the unsubstituted corrole, the 3-nitrocorrole, and the 3,17-dinitrocorrole. In contrast, a one-pot synthetic approach drives the reaction almost exclusively to formation of the iron nitrosyl 3,17-dinitrocorrole. Electron-releasing substituents on the meso-aryl groups of the triarylcorroles induce higher yields and longer reaction times than what is observed for the synthesis of similar triarylcorroles with electron-withdrawing functionalities, and these results can be confidently attributed to the facile formation and stabilization of an intermediate iron corrole π-cation radical. Electron-withdrawing substituents on the meso-aryl groups of triarylcorrole also seem to labilize the axial nitrosyl group which, in the case of the pentafluorophenylcorrole derivative, results in the direct formation of a disubstituted iron μ-oxo dimer complex. The influence of meso-aryl substituents on the progress and products of the nitration reaction was investigated. In addition, to elucidate the most important factors which influence the redox reactivity of these different iron nitrosyl complexes, selected compounds were examined by cyclic voltammetry and thin-layer UV-visible or FTIR spectroelectrochemistry in CH(2)Cl(2).
Collapse
Affiliation(s)
- Sara Nardis
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1, 00133 Rome, Italy
| | - Manuela Stefanelli
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1, 00133 Rome, Italy
| | - Pruthviraj Mohite
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1, 00133 Rome, Italy
| | - Giuseppe Pomarico
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1, 00133 Rome, Italy
| | - Luca Tortora
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1, 00133 Rome, Italy
| | - Machima Manowong
- Department of Chemistry, University of Houston, Houston, Texas, 77204-5003 USA
| | - Ping Chen
- Department of Chemistry, University of Houston, Houston, Texas, 77204-5003 USA
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas, 77204-5003 USA
| | - Frank R. Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803 USA
| | - Gregory T. McCandless
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803 USA
| | - Kevin M. Smith
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803 USA
| | - Roberto Paolesse
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, via della Ricerca Scientifica, 1, 00133 Rome, Italy
| |
Collapse
|
49
|
Superoxide signaling and cell death in retinal ganglion cell axotomy: effects of metallocorroles. Exp Eye Res 2012; 97:31-5. [PMID: 22366296 DOI: 10.1016/j.exer.2012.02.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Accepted: 02/09/2012] [Indexed: 11/24/2022]
Abstract
Injury to retinal ganglion cell (RGC) axons within the optic nerve causes apoptosis of the soma. We previously demonstrated that in vivo axotomy causes elevation of superoxide anion within the RGC soma, and that this occurs 1-2 days before annexin-V positivity, a marker of apoptosis. Pegylated superoxide dismutase delivery to the RGC prevents the superoxide elevation and rescues the soma. Together, these results imply that superoxide is an upstream signal for apoptosis after axonal injury in RGCs. We then studied metallocorroles, potent superoxide dismutase mimetics, which we had shown to be neuroprotective in vitro and superoxide scavengers in vivo for RGCs. RGCs were retrograde labeled with the fluorescent dye 4Di-10Asp, and then axotomized by intraorbital optic nerve transection. Iron(III) 2,17-bis-sulfonato-5,10,15-tris(pentafluorophenyl)corrole (Fe(tpfc)(SO(3)H)(2)) (Fe-corrole) was injected intravitreally. Longitudinal imaging of RGCs was performed and the number of surviving RGCs enumerated. There was significantly greater survival of labeled RGCs with Fe-corrole, but the degree of neuroprotection was relatively less than that predicted by their ability to scavenge superoxide-This implies an unexpected complexity in signaling of apoptosis by reactive oxygen species.
Collapse
|
50
|
Ghaffarieh A, Levin LA. Optic nerve disease and axon pathophysiology. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2012. [PMID: 23206593 DOI: 10.1016/b978-0-12-398309-1.00002-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Optic neuropathy is the most common cause of irreversible blindness worldwide. Although the most common optic neuropathy is glaucoma, there are also many other optic neuropathies, for example, those associated with multiple sclerosis, giant cell arteritis, ischemia, and many other diseases. In almost all cases, the pathogenesis involves injury to the retinal ganglion cell axon, with consequent somal and axonal degeneration. This chapter reviews the clinical and pathophysiological properties associated with three of the most common optic neuropathies, as well as recent findings in understanding axonal degeneration. It concludes with a status report on therapies for optic nerve disease, including axoprotection, an approach being studied that has the goal of maintaining axonal integrity and function after injury.
Collapse
Affiliation(s)
- Alireza Ghaffarieh
- Department of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA
| | | |
Collapse
|