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Farasati Far B, Maleki-Baladi R, Fathi-Karkan S, Babaei M, Sargazi S. Biomedical applications of cerium vanadate nanoparticles: a review. J Mater Chem B 2024; 12:609-636. [PMID: 38126443 DOI: 10.1039/d3tb01786a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Cerium vanadate nanoparticles (CeVO4 NPs), which are members of the rare earth orthovanadate nanomaterial family, have generated considerable interest due to their diverse properties and prospective biomedical applications. The current study, which provides a comprehensive overview of the synthesis and characterization techniques for CeVO4 NPs, emphasizes the sonochemical method as an efficient and straightforward technique for producing CeVO4 NPs with tunable size and shape. This paper investigates the toxicity and biocompatibility of CeVO4 NPs, as well as their antioxidant and catalytic properties, which allow them to modify the redox state of biological systems and degrade organic pollutants. In addition, the most recent developments in the medicinal applications of CeVO4 NPs, such as cancer treatment, antibacterial activity, biosensing, and drug or gene delivery, are emphasized. In addition, the disadvantages of CeVO4 NPs, such as stability, aggregation, biodistribution, and biodegradation, are outlined, and several potential solutions are suggested. The research concludes with data and recommendations for developing and enhancing CeVO4 NPs in the biomedical industry.
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Affiliation(s)
- Bahareh Farasati Far
- Department of Chemistry, Iran University of Science and Technology, Tehran, Iran.
| | - Reza Maleki-Baladi
- Department of Animal Science, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran.
- Young Researchers and Elite Club, Bojnourd Branch, Islamic Azad University, Bojnourd, Iran
- Universal Scientific Education and Research Network (USERN), Bojnourd, Iran
| | - Sonia Fathi-Karkan
- Natural Products and Medicinal Plants Research Center, North Khorasan University of Medical Sciences, Bojnurd, 94531-55166, Iran.
- Department of Advanced Sciences and Technologies in Medicine, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd 9414974877, Iran
| | - Meisam Babaei
- Department of Pediatrics, North Khorasan University of Medical Sciences, Bojnurd, 9417694735, Iran.
| | - Saman Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan 98167-43463, Iran.
- Department of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
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Jiang Z, Wang W, Zhao Y, Li T, Xin D, Gai C, Liu D, Wang Z. Mitochondria-targeted cerium vanadate nanozyme suppressed hypoxia-ischemia injury in neonatal mice via intranasal administration. J Control Release 2024; 365:1074-1088. [PMID: 38101752 DOI: 10.1016/j.jconrel.2023.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 12/06/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
Oxidative stress is a major obstacle for neurological functional recovery after hypoxia-ischemia (HI) brain damage. Nanozymes with robust anti-oxidative stress properties offer a therapeutic option for HI injury. However, insufficiency of nanozyme accumulation in the HI brain by noninvasive administration hinders their application. Herein, we reported a cerium vanadate (CeVO4) nanozyme to realize a noninvasive therapy for HI brain in neonatal mice by targeting brain neuron mitochondria. CeVO4 nanozyme with superoxide dismutase activity mainly co-located with neuronal mitochondria 1 h after administration. Pre- and post-HI administrations of CeVO4 nanozyme were able to attenuate acute brain injury, by inhibiting caspase-3 activation, microglia activation, and proinflammation cytokine production in the lesioned cortex 2 d after HI injury. Moreover, CeVO4 nanozyme administration led to short- and long-term functional recovery following HI insult without any potential toxicities in peripheral organs of mice even after prolonged delivery for 4 weeks. These beneficial effects of CeVO4 nanozyme were associated with suppressed oxidative stress and up-regulated nuclear factor erythroid-2-related factor 2 (Nrf2) expression. Finally, we found that Nrf2 inhibition with ML385 abolished the protective effects of CeVO4 nanozyme on HI injury. Collectively, this strategy may provide an applicative perspective for CeVO4 nanozyme therapy in HI brain damage via noninvasive delivery.
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Affiliation(s)
- Zige Jiang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Wenhan Wang
- State Key Laboratory of Crystal Materials, Shandong University, 27 Shanda Nanlu, Jinan, Shandong 250100, PR China
| | - Yijing Zhao
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Tingting Li
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Danqing Xin
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Chengcheng Gai
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Dexiang Liu
- Department of Medical Psychology and Ethics, School of Basic Medicine Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China.
| | - Zhen Wang
- Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China.
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Patel K, Bora V, Patel B. Sodium orthovanadate exhibits anti-angiogenic, antiapoptotic and blood glucose-lowering effect on colon cancer associated with diabetes. Cancer Chemother Pharmacol 2024; 93:55-70. [PMID: 37755518 DOI: 10.1007/s00280-023-04596-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND The presence of type 2 diabetes mellitus increases the risk of developing the colon cancer. The main objective of this study was to determine the role of sodium orthovanadate (SOV) in colon cancer associated with diabetes mellitus by targeting the competitive inhibition of PTP1B. METHODS For in vivo study, high fat diet with low dose streptozotocin model was used for inducing the diabetes mellitus. Colon cancer was induced by injecting 1,2-dimethylhydrazine (25 mg/kg, sc) twice a week. TNM staging and immunohistochemistry (IHC) was carried out for colon cancer tissues. In vitro studies like MTT assay, clonogenic assay, rhodamine-123 dye assay and annexin V-FITC assay using flow cytometry were performed on HCT-116 cell line. CAM assay was performed to examine the anti-angiogenic effect of the drug. RESULTS Sodium orthovanadate reduces the blood glucose level and tumor parameters in the animals. In vitro studies revealed that SOV decreased cell proliferation dose dependently. In addition, SOV induced apoptosis as depicted from rhodamine-123 dye assay and annexin V-FITC assay using flow cytometry as well as p53 IHC staining. SOV showed reduced angiogenesis effect on eggs which was depicted from CAM assay and also from CD34 and E-cadherin IHC staining. CONCLUSIONS Our data suggest that SOV exhibits protective role in colon cancer associated with diabetes mellitus. SOV exhibits anti-proliferative, anti-angiogenic and apoptotic inducing effects hence can be considered for therapeutic switching in diabetic colon cancer.
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Affiliation(s)
- Kruti Patel
- Institute of Pharmacy, Nirma University, Ahmedabad, India
| | - Vivek Bora
- Institute of Pharmacy, Nirma University, Ahmedabad, India
| | - Bhoomika Patel
- National Forensic Sciences University, Sector 9, Gandhinagar, 382007, Gujarat, India.
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Grabowska O, Zdrowowicz M, Milaș D, Żamojć K, Chmur K, Tesmar A, Kapica M, Chmurzyński L, Wyrzykowski D. Implications of albumin in cell culture media on the biological action of vanadates(V). Int J Biol Macromol 2023; 253:127875. [PMID: 37924912 DOI: 10.1016/j.ijbiomac.2023.127875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/06/2023]
Abstract
In this article, the implications of binding competition of vanadates(V) with dodecyl sulfates for bovine serum albumin on cytotoxicity of vanadium(V) species against prostate cancer cells have been investigated. The pH- and SDS-dependent vanadate(V)-BSA interactions were observed. At pH 5, there is only one site capable of binding ten vanadates(V) ions (logK(ITC)1 = 4.96 ± 0.06; ΔH(ITC)1 = -1.04 ± 0.03 kcal mol-1), whereas at pH 7 two distinctive binding sites on protein were found, saturated with two and seven V(V) ions, respectively (logK(ITC)1 = 6.11 ± 0.06; ΔH(ITC)1 = 0.78 ± 0.12 kcal mol-1; logK(ITC)2 = 4.80 ± 0.02; ΔH(ITC)2 = - 4.95 ± 0.14 kcal mol-1). SDS influences the stoichiometry and the stability of the resulting V(V)-BSA complexes. Finally, the cytotoxicity of vanadates(V) against prostate cancer cells (PC3 line) was examined in the presence and absence of SDS in the culture medium. In the case of a 24-h incubation with 100 μM vanadate(V), a ca. 20 % reduction in viability of PC3 cells was observed in the presence of SDS. However, in other considered cases (various concentrations and time of incubation) SDS does not affect the dose-dependent action of vanadates(V) on the investigated prostate cancer cells.
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Affiliation(s)
- Ola Grabowska
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Magdalena Zdrowowicz
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Dan Milaș
- Faculty of Chemistry, Biology, Geography, West University Timișoara, Strada Johann Heinrich Pestalozzi 16, Timișoara, Romania
| | - Krzysztof Żamojć
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Katarzyna Chmur
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Aleksandra Tesmar
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Martyna Kapica
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Lech Chmurzyński
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland
| | - Dariusz Wyrzykowski
- Faculty of Chemistry, University of Gdansk, Wita Stwosza 63, 80-308 Gdansk, Poland.
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Brenda CT, Norma RF, P BN, E CR, Nelly LV, Marcela RL, Martha UC, I FT. Ultrastructural alterations due to sodium metavanadate treatment in the blood stages of Plasmodium yoelii yoelii. J Trace Elem Med Biol 2023; 80:127314. [PMID: 37778096 DOI: 10.1016/j.jtemb.2023.127314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/19/2023] [Accepted: 09/26/2023] [Indexed: 10/03/2023]
Abstract
Malaria is a potentially mortal disease caused by parasites of the genus Plasmodium spp. It has a wide distribution in the world and unfortunately there are several factors that make its control difficult; among which the development of pharmacological resistance to the different drugs used to treat this disease stands out, which makes it necessary to design new compounds that have an antimalarial effect. Previous studies have shown that vanadium has a broad antiparasitic spectrum and is also safe for the host, so the objective of this research was to evaluate the antimalarial potential of sodium metavanadate (SM) and to analyze the ultrastructural changes in parasites exposed. The method consisted of inoculating CD-1 male mice with Plasmodium yoelii yoelii and administering a 10 mg/kg/day dose of SM orally for 4 days. On the fifth day, whole blood samples were obtained, processed for ultrastructural analysis, and the changes in the different parasite stages were compared against the control. Our results showed that SM decreased parasitemia compared to the group that did not receive treatment and modified the ultrastructure in all parasitic stages because it damaged the membranes, causing alterations mainly in the nucleus and in the mitochondria as well as the loss of cellular organization, which could affect the integrity of these parasites and decrease its viability.
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Affiliation(s)
- Casarrubias-Tabarez Brenda
- Department of Cellular and Tissular Biology, School of Medicine, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, Mexico City C.P. 04510, Mexico; Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Unidad de Posgrado, Edificio D, 1° Piso, Circuito de Posgrados, Ciudad Universitaria, Coyoacán, Mexico City C.P. 04510, Mexico
| | - Rivera-Fernández Norma
- Department of Microbiology and Parasitology. School of Medicine, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, Mexico City C.P. 04510, Mexico
| | - Bizarro-Nevares P
- Department of Cellular and Tissular Biology, School of Medicine, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, Mexico City C.P. 04510, Mexico
| | - Carrasco-Ramírez E
- Department of Microbiology and Parasitology. School of Medicine, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, Mexico City C.P. 04510, Mexico; Microscopy Unit, School of Medicine, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, Mexico City C.P. 04510, Mexico
| | - López-Valdez Nelly
- Department of Cellular and Tissular Biology, School of Medicine, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, Mexico City C.P. 04510, Mexico
| | - Rojas-Lemus Marcela
- Department of Cellular and Tissular Biology, School of Medicine, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, Mexico City C.P. 04510, Mexico
| | - Ustarroz-Cano Martha
- Department of Cellular and Tissular Biology, School of Medicine, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, Mexico City C.P. 04510, Mexico
| | - Fortoul Teresa I
- Department of Cellular and Tissular Biology, School of Medicine, UNAM, Av. Ciudad Universitaria 3000, Coyoacan, Mexico City C.P. 04510, Mexico.
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Adam MSS, Khalil A. Bioreactivity of divalent bimetallic vanadyl and zinc complexes bis-oxalyldihydrazone ligand against microbial and human cancer series. ctDNA interaction mode. Int J Biol Macromol 2023; 249:125917. [PMID: 37524289 DOI: 10.1016/j.ijbiomac.2023.125917] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/16/2023] [Accepted: 07/18/2023] [Indexed: 08/02/2023]
Abstract
Two novel divalent bimetallic complexes were constructed from the complexation of O=V4+ and Zn2+ ions (VOL and ZnL), respectively, with diisatin oxalyldihydrazone ligand (H2L). Various spectroscopic tools were used to confirm their chemical structures (FT-IR, NMR, EI-Mass, and electronic spectra), besides, elemental analyses and conductivity features. To estimate the role of divalent metal ions in their coordination compound for developing their bio-reactivity, the free ligand H2Lox, and its complexes (VOL and ZnL) were employed spectroscopic investigations against the growth of some microbial series (fungi and bacteria) and also against three human cancer/normal cells. Furthermore, their interaction behavior against calf thymus DNA (ctDNA) was studied through viscometric and spectrophotometric studies to discover the role of O=V4+ and Zn2+ ions to determine the mode of binding with ctDNA. The inhibiting effect of H2L, VOL, and ZnL versus the titled microbial (bacterial and fungal) was built upon their inhibited zone areas in mm and the MIC concentrations in μM. Their action against the three human cancer cells' growth was evaluated by IC50 values in μM and the selectivity index in percentage. Both VOL and ZnL complexes exhibited an amazing series with three human cancer cell growth (according to the zone values in mm of inhibition, MIC in μM, and IC50 values in μM) compared to those of their uncoordinated H2L ligand. VOL demonstrated a distinguished interacting behavior with ctDNA more than that interaction of ZnL depending on the variation of the central metal ion chemical features. Within the covalent and non-covalent interaction modes, the interaction binding between H2L, VOL, and ZnL with ctDNA was discussed based on the electronic spectroscopic observation.
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Affiliation(s)
- Mohamed Shaker S Adam
- Department of Chemistry, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia; Department of Chemistry, Faculty of Science, Sohag University, Sohag 82534, Egypt.
| | - Ahmed Khalil
- Department of Chemistry, College of Science, King Faisal University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia; Chemistry Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
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Sunitha N, Isac Sobana Raj C, Sindhu Kumari B. Development of nanofunctionalized oxovanadium(IV) complex and its anticancer, antidiabetic, DNA cleavage and cell imaging studies. Int J Pharm 2023; 644:123339. [PMID: 37611853 DOI: 10.1016/j.ijpharm.2023.123339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 08/25/2023]
Abstract
VO(IV) complex is little toxic and highly effective than vanadium salts. A vanadyl metal complex from 8-formyl-7-hydroxy-4-methyl coumarin derivative has been synthesized and functionalized with copper nanoparticles. The Spectrochemical studies such as UV, FTIR, 1NMR and ESR spectra were recorded to characterize the ligand(CUAP), Vanadyl complex[VO(CUAP)SO4] and nano Cu-VO(IV)complex efficiently. The structural studies of vanadyl complex confirmed that the ligand coordinate with metal through nitrogen atom of azomethine, carbonyl oxygen and phenolic oxygen. ESR spectrum of vanadyl complex revealed the covalent nature. XRD pattern of nano Cu-VO(IV) complex indicated the crystalline nature and the average particle size was 20.91 nm. SEM image of nano Cu-VO(IV) complex showed that the nano particles accumulated to form spherical shaped particles. The particle size obtained from Transmission Electron Microscopy of nano functionalized metal complex is ∼ 20 nm. It is closely matched to the particle size calculated from XRD results. Fluorescence of vanadyl complex and nano Cu-VO(IV) complex exhibit the emission from 270 to 900 nm range with significant fluorescence at ∼ 750 nm. The DNA cleavage of all the compounds was evaluated using Agarose gel electrophoresis technique and showed greater cleavage of vanadyl complex. The anticancer activity of compounds was carried out against two cancer cell lines viz Human Breast Cancer Cell line (MCF-7) and Human Leukemia Cancer Cell Line(K-562). Oxovanadium complex exhibited good anticancer activities than ligand and nano-functionalized complex. The antidiabetic activities of vanadyl and nano functionalized complexes were studied against α-Amylase and β-Glucosidase inhibition assay. In this study vanadyl complex showed higher inhibition activity on α-Amylase compared with standard Acarbose. The bioimaging of nano-functionalized metal complex showed high fluorescent properties. The molecular docking study of ligand and vanadyl complex showed greater docking results with CDK2 receptor.
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Affiliation(s)
- N Sunitha
- Department of Chemistry & Research Centre, Nesamony Memorial Christian College, Marthandam 629157, (Affiliated to Manonmaniam Sundaranar University, Tirunelveli), India
| | - C Isac Sobana Raj
- Department of Chemistry & Research Centre, Nesamony Memorial Christian College, Marthandam 629157, (Affiliated to Manonmaniam Sundaranar University, Tirunelveli), India
| | - B Sindhu Kumari
- Department of Chemistry, Sree Devi Kumari Women's College, Kuzhithurai 629163, (Affiliated to Manonmaniam Sundaranar University, Tirunelveli), India.
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Pei Z, Lei H, Wu J, Tang W, Wei K, Wang L, Gong F, Yang N, Liu L, Yang Y, Cheng L. Bioactive Vanadium Disulfide Nanostructure with "Dual" Antitumor Effects of Vanadate and Gas for Immune-Checkpoint Blockade-Enhanced Cancer Immunotherapy. ACS Nano 2023; 17:17105-17121. [PMID: 37603593 DOI: 10.1021/acsnano.3c04767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Bioactive inorganic nanomaterials and the biological effects of metal ions have attracted extensive attention in tumor therapy in recent years. Vanadium (V), as a typical bioactive metal element, regulates a variety of biological functions. However, its role in antitumor therapy remains to be revealed. Herein, biodegradable vanadium disulfide (VS2) nanosheets (NSs) were prepared as a responsive gas donor and bioactive V source for activating cancer immunotherapy in combination with immune-checkpoint blockade therapy. After PEGylation, VS2-PEG exhibited efficient glutathione (GSH) depletion and GSH-activated hydrogen sulfide (H2S) release. Exogenous H2S caused lysosome escape and reduced adenosine triphosphate (ATP) synthesis in tumor cells by interfering with the mitochondrial membrane potential and inducing acidosis. In addition, VS2-PEG degraded into high-valent vanadate, leading to Na+/K+ ATPase inhibition, potassium efflux, and interleukin (IL)-1β production. Together with further induction of ferroptosis and immunogenic cell death, a strong antitumor immune response was stimulated by reversing the immunosuppressive tumor microenvironment. Moreover, the combined treatment of VS2-PEG and α-PD-1 amplified antitumor therapy, significantly suppressed tumor growth, and further elicited robust immunity to effectively defeat tumors. This work highlights the biological effects of vanadium for application in cancer treatment.
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Affiliation(s)
- Zifan Pei
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Huali Lei
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Jie Wu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Wei Tang
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Kailu Wei
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Li Wang
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Fei Gong
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Nailin Yang
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Lin Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Yuqi Yang
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Liang Cheng
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa 999078, Macau SAR, China
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9
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Brooke H, Ghoshray M, Ibrahim A, Lloyd MD. Steady-state kinetic analysis of reversible enzyme inhibitors: A case study on calf intestine alkaline phosphatase. Methods Enzymol 2023; 690:39-84. [PMID: 37858536 DOI: 10.1016/bs.mie.2023.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Enzymes are important drug targets and inhibition of enzymatic activity is an important therapeutic strategy. Enzyme assays measuring catalytic activity are utilized in both the discovery and development of new drugs. Colorimetric assays based on the release of 4-nitrophenol from substrates are commonly used. 4-Nitrophenol is only partly ionized to 4-nitrophenolate under typical assay conditions (pH 7-9) leading to under-estimation of product formation rates due to the much lower extinction coefficient of 4-nitrophenol compared to 4-nitrophenolate. Determination of 4-nitrophenol pKa values based on absorbance at 405 nm as a function of experimental pH values is reported, allowing for calculation of a corrected extinction coefficient at the assay pH. Characterization of inhibitor properties using steady-state enzyme kinetics is demonstrated using calf intestine alkaline phosphatase and 4-nitrophenyl phosphate as substrate at pH ∼8.2. The following kinetic parameters were determined: Km= 40±3 µM; Vmax= 72.8±1.2 µmolmin-1mg protein-1; kcat= 9.70±0.16 s-1; kcat/Km= 2.44±0.16 × 105 M-1s-1 (mean± SEM, N = 4). Sodium orthovanadate and EDTA were used as model inhibitors and the following pIC50 values were measured using dose-response curves: 6.61±0.08 and 3.07±0.03 (mean±SEM, N = 4). Rapid dilution experiments determined that inhibition was reversible for sodium orthovanadate and irreversible for EDTA. A Ki value for orthovanadate of 51±8 nM (mean±SEM, N = 3) was determined. Finally, data analysis and statistical design of experiments are discussed.
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Affiliation(s)
- Henry Brooke
- Department of Life Sciences, University of Bath, Claverton Down, Bath, United Kingdom
| | - Meghna Ghoshray
- Department of Life Sciences, University of Bath, Claverton Down, Bath, United Kingdom
| | - Archad Ibrahim
- Department of Life Sciences, University of Bath, Claverton Down, Bath, United Kingdom
| | - Matthew D Lloyd
- Department of Life Sciences, University of Bath, Claverton Down, Bath, United Kingdom.
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10
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Yefimova S, Onishchenko A, Klochkov V, Myasoedov V, Kot Y, Tryfonyuk L, Knigavko O, Maksimchuk P, Kökbaş U, Kalashnyk-Vakulenko Y, Arkatov A, Khanzhyn V, Prokopyuk V, Vyshnytska I, Tkachenko A. Rare-earth orthovanadate nanoparticles trigger Ca 2+-dependent eryptosis. Nanotechnology 2023; 34:205101. [PMID: 36780664 DOI: 10.1088/1361-6528/acbb7f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Introduction. Rare-earth orthovanadate nanoparticles (ReVO4:Eu3+, Re = Gd, Y or La) are promising agents for photodynamic therapy of cancer due to their modifiable redox properties. However, their toxicity limits their application.Objective. The aim of this research was to elucidate pro-eryptotic effects of GdVO4:Eu3+and LaVO4:Eu3+nanoparticles with identification of underlying mechanisms of eryptosis induction and to determine their pharmacological potential in eryptosis-related diseases.Methods. Blood samples (n= 9) were incubated for 24 h with 0-10-20-40-80 mg l-1GdVO4:Eu3+or LaVO4:Eu3+nanoparticles, washed and used to prepare erythrocyte suspensions to analyze the cell membrane scrambling (annexin-V-FITC staining), cell shrinkage (forward scatter signaling), reactive oxygen species (ROS) generation through 2',7'-dichlorodihydrofluorescein diacetate (H2DCFDA) staining and intracellular Ca2+levels via FLUO4 AM staining by flow cytometry. Internalization of europium-enabled luminescent GdVO4:Eu3+and LaVO4:Eu3+nanoparticles was assessed by confocal laser scanning microscopy.Results.Both nanoparticles triggered eryptosis at concentrations of 80 mg l-1. ROS-mediated mechanisms were not involved in rare-earth orthovanadate nanoparticles-induced eryptosis. Elevated cytosolic Ca2+concentrations were revealed even at subtoxic concentrations of nanoparticles. LaVO4:Eu3+nanoparticles increased intracellular calcium levels in a more pronounced way compared with GdVO4:Eu3+nanoparticles. Our data disclose that the small-sized (15 nm) GdVO4:Eu3+nanoparticles were internalized after a 24 h incubation, while the large-sized (∼30 nm) LaVO4:Eu3+nanoparticles were localized preferentially around erythrocytes.Conclusions.Both internalized GdVO4:Eu3+and non-internalized LaVO4:Eu3+nanoparticles (80 mg l-1) promote eryptosis of erythrocytes after a 24 h exposurein vitrovia Ca2+signaling without involvement of oxidative stress. Eryptosis is a promising model for assessing nanotoxicity.
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Affiliation(s)
- Svetlana Yefimova
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky ave, 61072 Kharkiv, Ukraine
| | - Anatolii Onishchenko
- Research Institute of Experimental and Clinical Medicine, Kharkiv National Medical University, 4 Nauky ave, 61022 Kharkiv, Ukraine
| | - Vladimir Klochkov
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky ave, 61072 Kharkiv, Ukraine
| | - Valeriy Myasoedov
- Department of Medical Biology, Kharkiv National Medical University, 4 Nauky ave, 61022 Kharkiv, Ukraine
| | - Yurii Kot
- Department of Biochemistry, V.N. Karazin Kharkiv National University, 4 Svobody sq, 61022 Kharkiv , Ukraine
| | - Liliya Tryfonyuk
- Institute of Health, National University of Water and Environmental Engineering, 11 Soborna st,33000 Rivne, Ukraine
| | - Oleksandr Knigavko
- Department of Urology, Nephrology and Andrology, Kharkiv National Medical University, 195 Moskovsky ave, 61002 Kharkiv, Ukraine
| | - Pavel Maksimchuk
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky ave, 61072 Kharkiv, Ukraine
| | - Umut Kökbaş
- Medical Biochemistry Department, Nevsehir Haci Bektas Veli University, 2000 Evler Mah. Zübeyde Hanım Cad. 50300 / Nevşehir, Turkey
| | - Yuliia Kalashnyk-Vakulenko
- Department of Otorhinolaryngology, Kharkiv National Medical University, 4 Nauky ave, 61022 Kharkiv, Ukraine
| | - Andrii Arkatov
- Department of Urology, Nephrology and Andrology, Kharkiv National Medical University, 195 Moskovsky ave, 61002 Kharkiv, Ukraine
| | - Vladyslav Khanzhyn
- Department of Urology, Nephrology and Andrology, Kharkiv National Medical University, 195 Moskovsky ave, 61002 Kharkiv, Ukraine
| | - Volodymyr Prokopyuk
- Department of Cryobiochemistry, Institute for Problems of Cryobiology and Cryomedicine of the National Academy of Sciences of Ukraine, 23 Pereyaslavskaya st, 61015 Kharkiv, Ukraine
| | - Iryna Vyshnytska
- Saint James School of Medicine, Albert Lake Drive, The Quarter, A-1 2640, Anguilla
| | - Anton Tkachenko
- Research Institute of Experimental and Clinical Medicine, Kharkiv National Medical University, 4 Nauky ave, 61022 Kharkiv, Ukraine
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Lintel H, Abbas DB, Mackay DJ, Griffin M, Lavin CV, Berry CE, Guardino NJ, Guo JL, Momeni A, Mackay DR, Longaker MT, Wan DC. Topical vanadate improves tensile strength and alters collagen organisation of excisional wounds in a mouse model. Wound Repair Regen 2023; 31:77-86. [PMID: 36484112 PMCID: PMC10513738 DOI: 10.1111/wrr.13062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 10/10/2022] [Accepted: 10/13/2022] [Indexed: 12/13/2022]
Abstract
Wound dehiscence, oftentimes a result of the poor tensile strength of early healing wounds, is a significant threat to the post-operative patient, potentially causing life-threatening complications. Vanadate, a protein tyrosine phosphatase inhibitor, has been shown to alter the organisation of deposited collagen in healing wounds and significantly improve the tensile strength of incisional wounds in rats. In this study, we sought to explore the effects of locally administered vanadate on tensile strength and collagen organisation in both the early and remodelling phases of excisional wound healing in a murine model. Wild-type mice underwent stented excisional wounding on their dorsal skin and were divided equally into three treatment conditions: vanadate injection, saline injection control and an untreated control. Tensile strength testing, in vivo suction Cutometer analysis, gross wound measurements and histologic analysis were performed during healing, immediately upon wound closure, and after 4 weeks of remodelling. We found that vanadate treatment significantly increased the tensile strength of wounds and their stiffness relative to control wounds, both immediately upon healing and into the remodelling phase. Histologic analysis revealed that these biomechanical changes were likely the result of increased collagen deposition and an altered collagen organisation composed of thicker and distinctly organised collagen bundles. Given the risk that dehiscence poses to all operative patients, vanadate presents an interesting therapeutic avenue to improve the strength of post-operative wounds and unstable chronic wounds to reduce the risk of dehiscence.
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Affiliation(s)
- Hendrik Lintel
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Darren B. Abbas
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Duncan J. Mackay
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Michelle Griffin
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Christopher V. Lavin
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Charlotte E. Berry
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Nicholas J. Guardino
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Jason L. Guo
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Arash Momeni
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Donald R. Mackay
- Department of Plastic Surgery, Pennsylvania State University Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Michael T. Longaker
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
- Institute for Stem Cell Biology and Regenerative Medicine, Stanford University Medical Center, Stanford, California, USA
| | - Derrick C. Wan
- Hagey Laboratory for Pediatric Regenerative Medicine, Stanford University School of Medicine, Stanford, California, USA
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12
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Assis M, da Silva JS, Gonçalves MO, de Almeida Rodolpho JM, de Lima Fragelli BD, Corte ABP, Ribeiro LK, Teodoro MD, de Freitas Anibal F, de Sousa CP, Oliveira ON, Andrés J, Longo E. Bactericidal activity of Ag 4V 2O 7/β-AgVO 3 heterostructures against antibiotic-resistant Klebsiella pneumoniae. Biomater Adv 2022; 141:213097. [PMID: 36067643 DOI: 10.1016/j.bioadv.2022.213097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/26/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
Although Ag-based materials are efficient against antibiotic-resistant bacteria, their high toxicity to living organisms represents a major challenge for obtaining useful products. In this work, we report the bactericidal activity of Ag4V2O7/β-AgVO3 heterostructures, which proved to be effective against Klebsiella pneumoniae (ATCC 1706, a standard strain; A54970, a multidrug-resistant carbapenemase (KPC)-producing strain; A34057, a multidrug-resistant strain capable of producing extended spectrum beta-lactamases (ESBL); and a community-isolated strain, A58240) at minimum inhibitory concentrations (MIC) as low as 62.5 μg/mL. This activity is higher than that reported for the individual silver vanadates (Ag4V2O7 or β-AgVO3) owing to the synergistic interactions between both semiconductors. However, the most efficient heterostructure was found to be toxic to mouse 3 T3 fibroblasts and to L. sativa and C. sativus seeds, as indicated by MTT ((4,5 - dimethylthiazol -2yl) 2,5 -diphenylbromide), neutral red assays and germination index measurements. The antimicrobial, phytotoxic and cytotoxic activities were all associated with an efficient generation of reactive oxygen species (ROS) in the heterostructure, especially OH and O2- radicals. The ROS production by Ag4V2O7/β-AgVO3 heterostructures was measured through photodegradation studies with Rhodamine B. While the bactericidal activity of the heterostructures is promising, especially when compared to Ag-based materials, their use in practical applications will require encapsulation either to avoid leaching or to mitigate their toxicity to humans, animals and plants.
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Affiliation(s)
- Marcelo Assis
- Department of Analytical and Physical Chemistry, University Jaume I (UJI), 12071 Castelló, Spain; CDMF, LIEC, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil; São Carlos Institute of Physics, University of São Paulo (USP), 13560-970 São Carlos, SP, Brazil.
| | | | | | - Joice Margareth de Almeida Rodolpho
- Laboratory of Inflammation and Infectious Diseases, Department of Morphology and Pathology, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
| | - Bruna Dias de Lima Fragelli
- Laboratory of Inflammation and Infectious Diseases, Department of Morphology and Pathology, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
| | | | - Lara Kelly Ribeiro
- Department of Analytical and Physical Chemistry, University Jaume I (UJI), 12071 Castelló, Spain; CDMF, LIEC, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
| | - Marcio Daldin Teodoro
- Physics Department, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
| | - Fernanda de Freitas Anibal
- Laboratory of Inflammation and Infectious Diseases, Department of Morphology and Pathology, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
| | | | - Osvaldo N Oliveira
- São Carlos Institute of Physics, University of São Paulo (USP), 13560-970 São Carlos, SP, Brazil
| | - Juan Andrés
- Department of Analytical and Physical Chemistry, University Jaume I (UJI), 12071 Castelló, Spain
| | - Elson Longo
- CDMF, LIEC, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
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Dean JV, Willis M, Shaban L. Transport of acylated anthocyanins by the Arabidopsis ATP-binding cassette transporters AtABCC1, AtABCC2, and AtABCC14. Physiol Plant 2022; 174:e13780. [PMID: 36121340 DOI: 10.1111/ppl.13780] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/09/2022] [Accepted: 09/14/2022] [Indexed: 06/15/2023]
Abstract
Anthocyanins are a group of pigments that have various roles in plants including attracting pollinators and seed dispersers and protecting against various types of stress. In vegetative tissue, these anthocyanins are sequestered in the vacuole following biosynthesis in the cytoplasm, though there remain questions as to the events leading to the vacuolar sequestration. In this study, we were able to show that the uptake of acylated anthocyanins by vacuolar membrane-enriched vesicles isolated from Arabidopsis was stimulated by the addition of MgATP and was inhibited by both vanadate and glybenclamide, but not by gramicidin D or bafilomycin A1 , suggesting that uptake involves an ATP-binding cassette (ABC) transporter and not an H+ -antiporter. Membrane vesicles isolated from yeast expressing the ABC transporters designated AtABCC1, AtABCC2, and AtABCC14 are capable of MgATP-dependent uptake of acylated anthocyanins. This uptake was not dependent on glutathione as seen previously for anthocyanidin 3-O-monoglucosides. Compared to the wild-type, the transport of acylated anthocyanins was lower in vacuolar membrane-enriched vesicles isolated from atabcc1 cell cultures providing evidence that AtABCC1 may be the predominant transporter of these compounds in vivo. In addition, the pattern of anthocyanin accumulation differed between the atabcc1, atabcc2, and atabcc14 mutants and the wild-type seedlings under anthocyanin inductive conditions. We suggest that AtABCC1, AtABCC2, and AtABCC14 are involved in the vacuolar transport of acylated anthocyanins produced in the vegetative tissue of Arabidopsis and that the pattern of anthocyanin accumulation can be altered depending on the presence or absence of a specific vacuolar ABC transporter.
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Affiliation(s)
- John V Dean
- Department of Biological Sciences, DePaul University, Chicago, Illinois, USA
| | - Morgan Willis
- Department of Biological Sciences, DePaul University, Chicago, Illinois, USA
| | - Laith Shaban
- Department of Biological Sciences, DePaul University, Chicago, Illinois, USA
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14
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Zhou S, Wang P, Ding Y, Xie L, Li A. Modification of plasma membrane H+-ATPase in Masson pine (Pinus massoniana Lamb.) seedling roots adapting to acid deposition. Tree Physiol 2022; 42:1432-1449. [PMID: 35137231 DOI: 10.1093/treephys/tpac015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
To understand the regulation of roots plasma membrane H+-ATPase in Masson pine responding to acid deposition, the changes in biomass, plant morphology, intracellular H+, enzyme activity and H+-ATPase genes expression in Masson pine seedlings exposed to simulated acid rain (SAR, pH 5.6 and 4.6) with and without vanadate were studied. Simulated acid rain exposure for 60 days increased the intracellular H+ in pine roots whether added with 0.1 mM Na3VO4 or not. The growth of seedlings treated with SAR was maintained well, even the primary lateral root length, root dry weight and number of root tips in seedlings exposed to SAR at pH 4.6 were higher than that of the control (pH 6.6). However, the addition of vanadate resulted in severe growth inhibition and obvious decline in morphological parameters. Similarly, ATP hydrolytic activity and H+ transport activity of roots plasma membrane H+-ATPase, both were stimulated by SAR whereas they were inhibited by vanadate, and the highest activity stimulation was observed in pine roots subjected to SAR at pH 4.6. In addition, SAR also induced the expression of the investigated H+-ATPase subunits (atpB, atpE, atpF, atpH and atpI). Therefore, the roots plasma membrane H+-ATPase is instrumental in the growth of Masson pine seedlings adapting to acid rain by a manner of pumping more protons across the membrane through enhancing its activity, and which involves the upregulated gene expression of roots H+-ATPase subunits at transcriptional level.
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Affiliation(s)
- Sijie Zhou
- Department of Ecology, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
| | - Ping Wang
- Department of Ecology, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
| | - Yi Ding
- Department of Ecology, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
| | - Linbei Xie
- Department of Ecology, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
| | - Ao Li
- Department of Ecology, College of Biology and the Environment, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Nanjing Forestry University, No. 159 Longpan Road, Nanjing 210037, P.R. China
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Nikitchenko YV, Klochkov VK, Kavok NS, Karpenko NA, Nikitchenko IV, Yefimova SL, Bozhkov AI. Comparative Studies of Orthovanadate Nanoparticles and Metformin on Life Quality and Survival of Senile Wistar Rats. Biol Trace Elem Res 2022; 200:1237-1247. [PMID: 33900529 DOI: 10.1007/s12011-021-02734-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 04/19/2021] [Indexed: 12/16/2022]
Abstract
Effect of prolong use of orthovanadate nanoparticles (GdVO4/Eu3+ NPs (8 × 25 nm)) on life quality and survival of male Wistar rats on the late stage of ontogenesis (from 23 months to the end of life) has been investigated. Multi-parametric assessment of orthovanadate NPs influences against metformin (Met) which is a well-known calorie restriction mimetic (CR-mimetic) has been completed. The quality of life was assessed by taking into account age-related hallmarks-phenotype and some physiological parameters (condition of the coat, body weight, concentration of thyroxine, rectal temperature) as well as indicators of the pro-oxidant/antioxidant balance of blood and liver (the content of lipid hydroperoxides; aconitase, glutathione peroxidase, glutathione reductase, glutaredoxin activity, and activity of NADP+-dehydrogenases (DG) (glucose-6-phosphate DG, malate DG, and isocitrate DG)) in aging animals. Kaplan-Meier curve and Gehan tests with Yates' correction were performed for the survival analysis. It has been found that long-term use of GdVO4/Eu3+ NPs (0.25-0.30 mg/kg/day), as well as Met (100-110 mg/kg/day) with drinking water led to reliable improvement of physiological parameters and normalization of the pro-oxidant/antioxidant balance in the liver and blood of experimental animals. A significant increase in the survival rate of aging rats was observed; the apparent median survival for control rats was 900 days, while for experimental rats, 1010 and 990 days for GdVO4/Eu3+ NPs and Met, respectively. In general, the data obtained demonstrate the ability of GdVO4/Eu3+ NPs and CR-mimetic-Met to improve the quality of life and increase the survival of an elderly organism.
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Affiliation(s)
- Yuri V Nikitchenko
- Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Vladimir K Klochkov
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkiv, 61072, Ukraine
| | - Nataliya S Kavok
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkiv, 61072, Ukraine.
| | - Nina A Karpenko
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkiv, 61072, Ukraine
| | | | - Svetlana L Yefimova
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkiv, 61072, Ukraine
| | - Anatoly I Bozhkov
- Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
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Nikitchenko YV, Klochkov VK, Kavok NS, Averchenko KA, Karpenko NA, Nikitchenko IV, Yefimova SL, Bozhkov AI. Anti-aging Effects of Antioxidant Rare-Earth Orthovanadate Nanoparticles in Wistar Rats. Biol Trace Elem Res 2021; 199:4183-4192. [PMID: 33409911 DOI: 10.1007/s12011-020-02531-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 12/03/2020] [Indexed: 12/16/2022]
Abstract
Biomedical application of rare-earth-based nanoparticles attracts much attention due to their unique optical and redox properties and quite low toxicity. Earlier, we found age-related beneficial effects of rare-earth-based orthovanadate nanoparticles (OV NPs) on the prooxidant/antioxidant balance in liver and blood of Wistar rats, as reported by Nikitchenko et al. (Biol Trace Elem Res (2020). https://doi.org/10.1007/s12011-020-02196-7 ). However, the question remained unclear whether OV NPs' redox activity directly defines the protection ability. In the present work, antiradical, antioxidant, and membrane-protective properties of GdYVO4/Eu3+ NPs (1-2 nm), GdVO4/Eu3+ NPs (8 × 25 nm), LaVO4/Eu3+ (57 × 8 nm) were assayed in a comparative manner in various model systems. All OV NPs demonstrated the protective properties, but extra-small GdYVO4/Eu3+ NPs revealed the weakest antioxidant efficacy. In isolated mitochondria, OV NPs lowered (most evidently-extra-small NPs) respiration and oxidative phosphorylation, as well as ATP concentration. We conclude that not only the direct antioxidant effect but also slight suppression of bioenergetic processes by the OV NPs as well as the triggering of GSH-dependent antioxidant system may represent the principal mechanisms of their beneficial influences in an aged organism. This statement is consistent with improvement of the oxidative balance of 33-month-old rats due to prolonged administration of GdVO4 /Eu3+ NPs (for 11 months) accompanied by retention of the GSH signaling of the old rats at the level of 12 months mature animals. Consequently, an increase of antioxidant defense upon prolonged usage of OV NPs will lead to oxidative balance stabilization increasing the health span and survival of an organism.
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Affiliation(s)
- Yuri V Nikitchenko
- Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
| | - Vladimir K Klochkov
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkiv, 61072, Ukraine
| | - Nataliya S Kavok
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkiv, 61072, Ukraine.
| | - Kateryna A Averchenko
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkiv, 61072, Ukraine
| | - Nina A Karpenko
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkiv, 61072, Ukraine
| | | | - Svetlana L Yefimova
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave, Kharkiv, 61072, Ukraine
| | - Anatoly I Bozhkov
- Karazin Kharkiv National University, 4 Svobody Sq., Kharkiv, 61022, Ukraine
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Naso LG, Martínez VR, Ferrer EG, Williams PAM. Antimetastatic effects of VOflavonoid complexes on A549 cell line. J Trace Elem Med Biol 2021; 64:126690. [PMID: 33260045 DOI: 10.1016/j.jtemb.2020.126690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 10/12/2020] [Accepted: 11/17/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Non-small-cell lung cancer (NSCLC) is the most frequent type of lung cancer and more than 90 % of mortality is due to metastasis-related deaths. Flavonoids are considered nutraceuticals due to the variety of pharmacological properties. In this paper, we studied the effects of baicalin, silibinin, apigenin, luteolin, and its oxidovanadium(IV) cation complexes on the viability, adhesion to fibronectin, invasion, and migration on human lung cancer cell line A549. In addition, in order to complete the study of the interaction of VOflavonoids and bovine serum albumin (BSA), the binding ability of silibinin and VOsil to the protein was evaluated. METHOD To establish the non-cytotoxic concentration range of the tested compounds, the cancer cell viability was evaluated using a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay. Cell migration and invasion assays were performed using Boyden chambers and adhesion assay using MTT method. The interaction of compounds with BSA were investigated in physiological buffer (pH = 7.4) by fluorescence spectroscopy. RESULTS All complexes inhibited the metastatic cascade steps to a greater extent than their respective ligands. Likewise, based on binding constant values (Kb) for BSA-silibinin and BSA-VOsil, we can suggest that both compounds can interact with the protein. CONCLUSION Although all the complexes suppressed cell adhesion, invasion and migration, VOlut can be considered as a good candidate to continue the trials because it presented encouraging results as a potential antitumor and antimetastatic agent, and can be transported by BSA.
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Affiliation(s)
- Luciana G Naso
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N° 1465, 1900 La Plata, Argentina.
| | - Valeria R Martínez
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N° 1465, 1900 La Plata, Argentina
| | - Evelina G Ferrer
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N° 1465, 1900 La Plata, Argentina
| | - Patricia A M Williams
- CEQUINOR-CONICET-CICPBA-UNLP, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Bv. 120 N° 1465, 1900 La Plata, Argentina
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18
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Nikitchenko YV, Klochkov VK, Kavok NS, Karpenko NA, Yefimova SL, Nikitchenko IV, Bozhkov AI. Age-Related Effects of Orthovanadate Nanoparticles Involve Activation of GSH-Dependent Antioxidant System in Liver Mitochondria. Biol Trace Elem Res 2021; 199:649-659. [PMID: 32447579 DOI: 10.1007/s12011-020-02196-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 05/14/2020] [Indexed: 12/21/2022]
Abstract
Vanadium is an important ultra-trace element nowadays attracting attention with particular emphasis on medical application. But the therapeutic application of vanadium-based drugs is still questionable and restricted due to some toxic side effects. It was found that unique redox properties of vanadium in nanoform provided antioxidant activity and prevented oxidative disturbance in cells in vitro. Though, on the organism level, ambiguous effects of vanadium-based nanoparticles were observed. In this study, the age-related features of prooxidant/antioxidant balance in blood serum and liver mitochondrial and postmitochondrial fractions of 3 and 18-month-old Wistar male rats treated with orthovanadate nanoparticles (GdVO4/Eu3+, 8 × 25 nm) within 2 months have been investigated. Prooxidant potential-related indexes were the content of lipid hydroperoxides as well as aconitase activity. Activity of glutathione peroxidase, glutathione-S-transferase, glutaredoxin, glutathione reductase, glucose-6-phosphate dehydrogenase, and NADPH-dependent isocitrate dehydrogenase designated the tissue antioxidant potential. Based on the obtained values, the integral index of the prooxidant/antioxidant balance-the reliability coefficient (Kr) has been calculated. The data show that due to activation some chain links of GSH-dependent antioxidant system, GdVO4/Eu3+ nanoparticles increase the reliability of the prooxidant-antioxidant balance in tissues and especially in the liver mitochondria of old animals (Kr in mitochondria of young rats was 2.94, and in mitochondria of old ones-9.83 conventional units). Detected in vitro glutathione peroxidase-like activity of the GdVO4/Eu3+ nanoparticles is supposed to be among factors increasing the reliability of the system. So, for the first time, the beneficial effect of the long-term orthovanadate nanoparticle consumption in old males has been discovered.
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Affiliation(s)
- Yuri V Nikitchenko
- Biology Research Institute, Karazin Kharkiv National University, pl. Svobody 4, Kharkiv, 61000, Ukraine
| | - Vladimir K Klochkov
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave., Kharkiv, 61072, Ukraine
| | - Nataliya S Kavok
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave., Kharkiv, 61072, Ukraine.
| | - Nina A Karpenko
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave., Kharkiv, 61072, Ukraine
| | - Svetlana L Yefimova
- Institute for Scintillation Materials, National Academy of Sciences of Ukraine, 60 Nauky Ave., Kharkiv, 61072, Ukraine
| | - Irina V Nikitchenko
- Biology Research Institute, Karazin Kharkiv National University, pl. Svobody 4, Kharkiv, 61000, Ukraine
| | - Anatoly I Bozhkov
- Biology Research Institute, Karazin Kharkiv National University, pl. Svobody 4, Kharkiv, 61000, Ukraine
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Sarmiento-Ortega VE, Moroni-González D, Díaz A, Morán C, Brambila E, Treviño S. Sodium metavanadate treatment improves glycogen levels in multiple tissues in a model of metabolic syndrome caused by chronic cadmium exposure in Wistar rats. Biometals 2021; 34:245-258. [PMID: 33389338 DOI: 10.1007/s10534-020-00276-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 11/27/2020] [Indexed: 11/24/2022]
Abstract
Cadmium, one of the more hazardous environmental contaminants, has been proposed as a metabolic disruptor. Vanadium has emerged as a possible treatment for metabolic diseases. Both metals are important in public health. We aimed to investigate whether vanadium treatment is effective against metabolic disturbances caused by chronic exposure to the lowest-observable adverse effect level of cadmium. Male Wistar rats were exposed to cadmium (32.5 ppm) in drinking water for 3 months. Metabolic complications such as overweight, visceral adipose gain, hyperglycemia, impaired glucose tolerance, and dyslipidemia were detected, and low glycogen levels and steatosis were observed in the tissues. Then, the control and treated animals were subdivided and treated with a solution of 5 μM NaVO3/kg/twice a week for 2 months. The control-NaVO3 group did not show zoometric or metabolic changes. A strong interaction of NaVO3 treatment over cadmium metabolic disruption was observed. The vanadium accumulation diminished cadmium concentration in tissues. Also, vanadium interaction improved glucose homeostasis. The major effect was observed on glycogen synthesis, which was fully recovered in all tissues analyzed. Additionally, vanadium treatment prevented overweight and visceral fat accumulation, improving BMI and the percentage of fat. However, NaVO3 treatment did not have an effect on dyslipidemia or steatosis. In conclusion, this work shows that vanadium administration has a strong effect against metabolic disturbances caused by chronic cadmium exposure, observing powerful interaction on glucose homeostasis.
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Affiliation(s)
- Victor Enrique Sarmiento-Ortega
- Laboratory of Chemical-Clinical Investigations, Department of Clinical Chemistry, Faculty of Chemistry Science, University Autonomous of Puebla, 14 South. FCQ1, University City, C.P. 72560, Puebla, Mexico
| | - Diana Moroni-González
- Laboratory of Chemical-Clinical Investigations, Department of Clinical Chemistry, Faculty of Chemistry Science, University Autonomous of Puebla, 14 South. FCQ1, University City, C.P. 72560, Puebla, Mexico
| | - Alfonso Díaz
- Department of Pharmacy, Faculty of Chemistry Science, University Autonomous of Puebla, 22 South. FC91, University City, C.P. 72560, Puebla, Mexico
| | - Carolina Morán
- Department of Biology and Reproduction Toxicology, Science Institute, University Autonomous of Puebla, 14 South. University City, C.P. 72560, Puebla, Mexico
| | - Eduardo Brambila
- Laboratory of Chemical-Clinical Investigations, Department of Clinical Chemistry, Faculty of Chemistry Science, University Autonomous of Puebla, 14 South. FCQ1, University City, C.P. 72560, Puebla, Mexico
| | - Samuel Treviño
- Laboratory of Chemical-Clinical Investigations, Department of Clinical Chemistry, Faculty of Chemistry Science, University Autonomous of Puebla, 14 South. FCQ1, University City, C.P. 72560, Puebla, Mexico.
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20
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Gjetting SK, Mahmood K, Shabala L, Kristensen A, Shabala S, Palmgren M, Fuglsang AT. Evidence for multiple receptors mediating RALF-triggered Ca 2+ signaling and proton pump inhibition. Plant J 2020; 104:433-446. [PMID: 32713048 DOI: 10.1111/tpj.14935] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/03/2020] [Accepted: 07/16/2020] [Indexed: 05/21/2023]
Abstract
Acidification of the apoplastic space facilitates cell wall loosening and is therefore a key step in cell expansion. PSY1 is a growth-promoting secreted tyrosine-sulfated glycopeptide whose receptor directly phosphorylates and activates the plasma membrane H+ -ATPase, which results in acidification and initiates cellular expansion. Although the mechanism is not clear, the Rapid Alkalinization Factor (RALF) family of small, secreted peptides inhibits the plasma membrane H+ -ATPase, leading to alkalinization of the apoplastic space and reduced growth. Here we show that treating Arabidopsis thaliana roots with PSY1 induced the transcription of genes encoding the RALF peptides RALF33 and RALFL36. A rapid burst of intracellular Ca2+ preceded apoplastic alkalinization in roots triggered by RALFs, with peptide-specific signatures. Ca2+ channel blockers abolished RALF-induced alkalinization, indicating that the Ca2+ signal is an obligatory part of the response and that it precedes alkalinization. As expected, fer mutants deficient in the RALF receptor FERONIA did not respond to RALF33. However, we detected both Ca2+ and H+ signatures in fer mutants upon treatment with RALFL36. Our results suggest that different RALF peptides induce extracellular alkalinization by distinct mechanisms that may involve different receptors.
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Affiliation(s)
- Sisse K Gjetting
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Khalid Mahmood
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lana Shabala
- University of Tasmania, Hobart, Tasmania, Australia
| | - Astrid Kristensen
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Michael Palmgren
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anja T Fuglsang
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
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21
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Hörauf JA, Kany S, Janicova A, Xu B, Vrdoljak T, Sturm R, Dunay IR, Martin L, Relja B. Short Exposure to Ethanol Diminishes Caspase-1 and ASC Activation in Human HepG2 Cells In Vitro. Int J Mol Sci 2020; 21:ijms21093196. [PMID: 32366053 PMCID: PMC7246869 DOI: 10.3390/ijms21093196] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 04/26/2020] [Accepted: 04/29/2020] [Indexed: 12/20/2022] Open
Abstract
This paper discusses how the assembly of pro-caspase-1 and apoptosis-associated speck-like protein containing a caspase-recruitment domain (ASC) in macromolecular protein complexes, inflammasomes, activates caspase-1. The present study investigates the molecular mechanisms of inflammasome activation in HepG2 cells and examines how short exposures to ethanol (EtOH) affect inflammasome activation. HepG2 cells were treated with lipopolysaccharide (LPS), ATP or nigericin (NIG) in a two-step model. After LPS priming, ATP or NIG were added. As inhibitors, sodium orthovanadate (general inhibitor of tyrosine phosphatases), AC-YVAD-CMK (caspase-1 inhibitor) or AZ10606120 (purinergic receptor P2X7R inhibitor) were applied after LPS priming. To monitor the inflammasome activation, the caspase-1 activity, ASC speck formation, reactive oxygen species (ROS) production and cell death were analyzed. To elucidate the mechanistical approach of EtOH to the inflammasome assembly, the cells were treated with EtOH either under simultaneous LPS administration or concurrently with ATP or NIG application. The co-stimulation with LPS and ATP induced a significant ASC speck formation, caspase-1 activation, cell death and ROS generation. The inhibition of the ATP-dependent purinoreceptor P2X7 decreased the caspase-1 activation, whereas sodium orthovanadate significantly induced caspase-1. Additional treatment with EtOH reversed the LPS and ATP-induced caspase-1 activation, ASC speck formation and ROS production. The ASC speck formation and caspase-1 induction require a two-step signaling with LPS and ATP in HepG2 cells. Inflammasome activation may depend on P2X7. The molecular pathway of an acute effect of EtOH on inflammasomes may involve a reduction in ROS generation, which in turn may increase the activity of tyrosine phosphatases.
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Affiliation(s)
- Jason-Alexander Hörauf
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany; (J.-A.H.); (R.S.)
| | - Shinwan Kany
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University Magdeburg, 39108 Magdeburg, Germany; (S.K.); (A.J.); (B.X.)
- Department of Cardiology with Emphasis on Electrophysiology, University Heart Centre, University Hospital Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Andrea Janicova
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University Magdeburg, 39108 Magdeburg, Germany; (S.K.); (A.J.); (B.X.)
| | - Baolin Xu
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University Magdeburg, 39108 Magdeburg, Germany; (S.K.); (A.J.); (B.X.)
| | - Teodora Vrdoljak
- Department of Diagnostic and Interventional Radiology, University Hospital Dubrava, University of Zagreb School of Medicine, HR-10000 Zagreb, Croatia;
| | - Ramona Sturm
- Department of Trauma, Hand and Reconstructive Surgery, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany; (J.-A.H.); (R.S.)
| | - Ildiko Rita Dunay
- Institute of Inflammation and Neurodegeneration, Otto von Guericke University Magdeburg, 39108 Magdeburg, Germany;
| | - Lukas Martin
- Department of Intensive Care and Intermediate Care, University Hospital RWTH Aachen, 52074 Aachen, Germany;
| | - Borna Relja
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University Magdeburg, 39108 Magdeburg, Germany; (S.K.); (A.J.); (B.X.)
- Correspondence: ; Tel.: +49-391-67-28242
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22
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Abstract
Vanadium is a transition metal that has been added recently to the EU list of Raw Critical Metals. The growing needs of vanadium primarily in the steel industry justify its increasing economic value. However, because mining of vanadium sources (i. e. ores, concentrates and vanadiferous slags) is expanding, so is vanadium environmental contamination. Bioleaching comes forth as smart strategy to deal with supply demand and environmental contamination. It requires organisms that are able to mobilize the metal and at the same time are resistant to the leachate generated. Here, we investigated the molecular mechanisms underlying vanadium resistance in Ochrobactrum tritici strains. The highly resistant strain 5bvl1 was able to grow at concentrations > 30 mM vanadate, while the O. tritici type strain only tolerated < 3 mM vanadate concentrations. Screening of O. tritici single mutants (chrA, chrC, chrF and recA) growth during vanadate exposure revealed that vanadate resistance was associated with chromate resistance mechanisms (in particular ChrA, an efflux pump and ChrC, a superoxide dismutase). We also showed that sensitivity to vanadate was correlated with increased accumulation of vanadate intracellularly, while in resistant cells this was not found. Other up-regulated proteins found during vanadate exposure were ABC transporters for methionine and iron, suggesting that cellular responses to vanadate toxicity may also induce changes in unspecific transport and chelation of vanadate.
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Affiliation(s)
- Mariana Cruz Almeida
- CEMMPRE, Centre for Mechanical Engineering, Materials and Processes, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Rita Branco
- CEMMPRE, Centre for Mechanical Engineering, Materials and Processes, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
| | - Paula V. Morais
- CEMMPRE, Centre for Mechanical Engineering, Materials and Processes, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
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23
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Korbecki J, Gutowska I, Wiercioch M, Łukomska A, Tarnowski M, Drozd A, Barczak K, Chlubek D, Baranowska-Bosiacka I. Sodium Orthovanadate Changes Fatty Acid Composition and Increased Expression of Stearoyl-Coenzyme A Desaturase in THP-1 Macrophages. Biol Trace Elem Res 2020; 193:152-161. [PMID: 30927246 PMCID: PMC6914714 DOI: 10.1007/s12011-019-01699-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 03/18/2019] [Indexed: 11/29/2022]
Abstract
Vanadium compounds are promising antidiabetic agents. In addition to regulating glucose metabolism, they also alter lipid metabolism. Due to the clear association between diabetes and atherosclerosis, the purpose of the present study was to assess the effect of sodium orthovanadate on the amount of individual fatty acids and the expression of stearoyl-coenzyme A desaturase (SCD or Δ9-desaturase), Δ5-desaturase, and Δ6-desaturase in macrophages. THP-1 macrophages differentiated with phorbol 12-myristate 13-acetate (PMA) were incubated in vitro for 48 h with 1 μM or 10 μM sodium orthovanadate (Na3VO4). The estimation of fatty acid composition was performed by gas chromatography. Expressions of the genes SCD, fatty acid desaturase 1 (FADS1), and fatty acid desaturase 2 (FADS2) were tested by qRT-PCR. Sodium orthovanadate in THP-1 macrophages increased the amount of saturated fatty acids (SFA) such as palmitic acid and stearic acid, as well as monounsaturated fatty acids (MUFA)-oleic acid and palmitoleic acid. Sodium orthovanadate caused an upregulation of SCD expression. Sodium orthovanadate at the given concentrations did not affect the amount of polyunsaturated fatty acids (PUFA) such as linoleic acid, arachidonic acid, eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), and docosahexaenoic acid (DHA). In conclusion, sodium orthovanadate changed SFA and MUFA composition in THP-1 macrophages and increased expression of SCD. Sodium orthovanadate did not affect the amount of any PUFA. This was associated with a lack of influence on the expression of FADS1 and FADS2.
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Affiliation(s)
- Jan Korbecki
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 72 Av., 70-111, Szczecin, Poland
| | - Izabela Gutowska
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, Broniewskiego 24 Str., 71-460, Szczecin, Poland
| | - Marta Wiercioch
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, Broniewskiego 24 Str., 71-460, Szczecin, Poland
| | - Agnieszka Łukomska
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, Broniewskiego 24 Str., 71-460, Szczecin, Poland
| | - Maciej Tarnowski
- Department of Physiology, Pomeranian Medical University, Powstańców Wlkp. 72 Av., 70-111, Szczecin, Poland
| | - Arleta Drozd
- Department of Biochemistry and Human Nutrition, Pomeranian Medical University, Broniewskiego 24 Str., 71-460, Szczecin, Poland
| | - Katarzyna Barczak
- Department of Conservative Dentistry and Endodontics, Pomeranian Medical University, Powstańców Wlkp. 72 Av., 70-111, Szczecin, Poland
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 72 Av., 70-111, Szczecin, Poland
| | - Irena Baranowska-Bosiacka
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University, Powstańców Wlkp. 72 Av., 70-111, Szczecin, Poland.
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24
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Šinkorová Z, Filipová A, Vávrová J, Pejchal J, Andrejsová L, Jeličová M, Marek J, Havelek R, Seifrtová M, Řezáčová M, Tichý A. INVESTIGATION OF THE RADIOPROTECTIVE EFFECT OF ORTHOVANADATE IN MICE AFTER TOTAL BODY IRRADIATION. Radiat Prot Dosimetry 2019; 186:149-154. [PMID: 31711201 DOI: 10.1093/rpd/ncz192] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 09/10/2019] [Indexed: 06/10/2023]
Abstract
The increasing risk of acute large-scale exposure of ionising irradiation on the population underlines the necessity of developing effective radioprotective and mitigating agents. The aim of this work was to investigate the effect of sodium orthovanadate pre-treatment on mice exposed to high doses of gamma rays (from 5 to 13 Gy). The determination of median lethal dose within 30 days confirmed that orthovanadate applied to total-body-irradiated mice intra-peritoneally has a radioprotective but not a mitigating effect. With orthovanadate pre-treatment, the composition of cellularity in the bone marrow improved substantially and the main lymphocyte populations restored during the first month after irradiation. These findings contribute to 'gap-filling' in radioprotective effects and demonstrate the importance of haematological parameters in radiation-response prediction.
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Affiliation(s)
- Zuzana Šinkorová
- Department of Radiobiology, University of Defence, 500 01 Hradec Kralove, Czech Republic
| | - Alžběta Filipová
- Department of Radiobiology, University of Defence, 500 01 Hradec Kralove, Czech Republic
| | - Jiřina Vávrová
- Department of Radiobiology, University of Defence, 500 01 Hradec Kralove, Czech Republic
| | - Jaroslav Pejchal
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defence, 500 01 Hradec Kralove, Czech Republic
| | - Lenka Andrejsová
- Department of Radiobiology, University of Defence, 500 01 Hradec Kralove, Czech Republic
| | - Marcela Jeličová
- Department of Radiobiology, University of Defence, 500 01 Hradec Kralove, Czech Republic
| | - Jan Marek
- Biomedical Research Center, University Hospital, 500 05 Hradec Kralove, Czech Republic
| | - Radim Havelek
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, 500 03 Hradec Kralove, Czech Republic
| | - Martina Seifrtová
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, 500 03 Hradec Kralove, Czech Republic
| | - Martina Řezáčová
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, 500 03 Hradec Kralove, Czech Republic
| | - Aleš Tichý
- Department of Radiobiology, University of Defence, 500 01 Hradec Kralove, Czech Republic
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25
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Fraqueza G, Fuentes J, Krivosudský L, Dutta S, Mal SS, Roller A, Giester G, Rompel A, Aureliano M. Inhibition of Na +/K +- and Ca 2+-ATPase activities by phosphotetradecavanadate. J Inorg Biochem 2019; 197:110700. [PMID: 31075720 DOI: 10.1016/j.jinorgbio.2019.110700] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/16/2019] [Accepted: 04/25/2019] [Indexed: 02/07/2023]
Abstract
Polyoxometalates (POMs) are promising inorganic inhibitors for P-type ATPases. The experimental models used to study the effects of POMs on these ATPases are usually in vitro models using vesicles from several membrane sources. Very recently, some polyoxotungstates, such as the Dawson anion [P2W18O62]6-, were shown to be potent P-type ATPase inhibitors; being active in vitro as well as in ex-vivo. In the present study we broaden the spectrum of highly active inhibitors of Na+/K+-ATPase from basal membrane of epithelial skin to the bi-capped Keggin-type anion phosphotetradecavanadate Cs5.6H3.4PV14O42 (PV14) and we confront the data with activity of other commonly encountered polyoxovanadates, decavanadate (V10) and monovanadate (V1). The X-ray crystal structure of PV14 was solved and contains two trans-bicapped α-Keggin anions HxPV14O42(9-x)-. The anion is built up from the classical Keggin structure [(PO4)@(V12O36)] capped by two [VO] units. PV14 (10 μM) exhibited higher ex-vivo inhibitory effect on Na+/K+-ATPase (78%) than was observed at the same concentrations of V10 (66%) or V1 (33%). Moreover, PV14 is also a potent in vitro inhibitor of the Ca2+-ATPase activity (IC50 5 μM) exhibiting stronger inhibition than the previously reported activities for V10 (15 μM) and V1 (80 μM). Putting it all together, when compared both P-typye ATPases it is suggested that PV14 exibited a high potential to act as an in vivo inhibitor of the Na+/K+-ATPase associated with chloride secretion.
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Affiliation(s)
- Gil Fraqueza
- ISE, University of Algarve, 8005-139 Faro, Portugal; CCMar, University of Algarve, 8005-139 Faro, Portugal
| | - Juan Fuentes
- CCMar, University of Algarve, 8005-139 Faro, Portugal
| | - Lukáš Krivosudský
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstr. 14, 1090 Wien, Austria; Comenius University, Faculty of Natural Sciences, Department of Inorganic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovakia
| | - Saikat Dutta
- Department of Chemistry, National Institute of Technology Karnataka, Mangalore 575025, Karnataka, India
| | - Sib Sankar Mal
- Department of Chemistry, National Institute of Technology Karnataka, Mangalore 575025, Karnataka, India.
| | - Alexander Roller
- Universität Wien, Fakultät für Chemie, Zentrum für Röntgenstrukturanalyse, 1090 Wien, Austria
| | - Gerald Giester
- Universität Wien, Fakultät für Geowissenschaften, Geographie und Astronomie, Institut für Mineralogie und Kristallographie, 1090 Wien, Austria
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstr. 14, 1090 Wien, Austria.
| | - Manuel Aureliano
- CCMar, University of Algarve, 8005-139 Faro, Portugal; FCT, University of Algarve, 8005-139 Faro, Portugal.
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26
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Sa G, Yao J, Deng C, Liu J, Zhang Y, Zhu Z, Zhang Y, Ma X, Zhao R, Lin S, Lu C, Polle A, Chen S. Amelioration of nitrate uptake under salt stress by ectomycorrhiza with and without a Hartig net. New Phytol 2019; 222:1951-1964. [PMID: 30756398 PMCID: PMC6594093 DOI: 10.1111/nph.15740] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/01/2019] [Indexed: 05/13/2023]
Abstract
Salt stress is an important environmental cue impeding poplar nitrogen nutrition. Here, we characterized the impact of salinity on proton-driven nitrate fluxes in ectomycorrhizal roots and the importance of a Hartig net for nitrate uptake. We employed two Paxillus involutus strains for root colonization: MAJ, which forms typical ectomycorrhizal structures (mantle and Hartig net), and NAU, colonizing roots with a thin, loose hyphal sheath. Fungus-colonized and noncolonized Populus × canescens were exposed to sodium chloride and used to measure root surface pH, nitrate (NO3- ) flux and transcription of NO3- transporters (NRTs; PcNRT1.1, -1.2, -2.1), and plasmalemma proton ATPases (HAs; PcHA4, -8, -11). Paxillus colonization enhanced root NO3- uptake, decreased surface pH, and stimulated NRTs and HA4 of the host regardless the presence or absence of a Hartig net. Under salt stress, noncolonized roots exhibited strong net NO3- efflux, whereas beneficial effects of fungal colonization on surface pH and HAs prevented NO3- loss. Inhibition of HAs abolished NO3- influx under all conditions. We found that stimulation of HAs was crucial for the beneficial influence of ectomycorrhiza on NO3- uptake, whereas the presence of a Hartig net was not required for improved NO3- translocation. Mycorrhizas may contribute to host adaptation to salt-affected environments by keeping up NO3- nutrition.
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Affiliation(s)
- Gang Sa
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
- Gansu Provincial Key Laboratory of Aridland Crop SciencesGansu Agricultural UniversityLanzhou730070China
| | - Jun Yao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
| | - Chen Deng
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
| | - Jian Liu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
| | - Yinan Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
| | - Zhimei Zhu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
| | - Yuhong Zhang
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
| | - Xujun Ma
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
- Urat Desert‐Grassland Research StationNorthwest Institute of Eco‐Environment and ResourcesChinese Academy of ScienceLanzhou730000China
| | - Rui Zhao
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
| | - Shanzhi Lin
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
| | - Cunfu Lu
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
| | - Andrea Polle
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
- Forest Botany and Tree PhysiologyUniversity of GoettingenGöttingen37077Germany
| | - Shaoliang Chen
- Beijing Advanced Innovation Center for Tree Breeding by Molecular DesignCollege of Biological Sciences and TechnologyBeijing Forestry UniversityBox 162Beijing100083China
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Vilela Teixeira AB, de Carvalho Honorato Silva C, Alves OL, Cândido dos Reis A. Endodontic Sealers Modified with Silver Vanadate: Antibacterial, Compositional, and Setting Time Evaluation. Biomed Res Int 2019; 2019:4676354. [PMID: 31211137 PMCID: PMC6532301 DOI: 10.1155/2019/4676354] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 04/04/2019] [Accepted: 04/23/2019] [Indexed: 11/18/2022]
Abstract
The incorporation of nanoparticles into endodontic sealers aims at increasing antimicrobial activity of the original material. Aim. The aim of this study is to incorporate the nanostructured silver vanadate decorated with silver nanoparticles (AgVO3, at 2.5%, 5%, and 10%) into three endodontic sealers and evaluate the antibacterial activity of freshly sealers, surface topography and chemical composition, and setting time. Material and Methods. The AgVO3 was incorporated into AH Plus, Sealer 26, and Endomethasone N at concentrations 0%, 2.5%, 5%, and 10% (in mass). The antibacterial activity of freshly sealers was assessed by direct contact with Enterococcus faecalis and CFU/mL count (n=10), surface topography, and chemical composition were measured by SEM/EDS, and the setting time was measured by Gillmore needle (n=10). The Kruskal-Wallis and Dunn statistical tests were applied (α=0.05). Results. All groups of sealers evaluated inhibited E. faecalis (p>0.05). The incorporation of AgVO3 altered the atomic proportions between components of the endodontic sealers, and the percentage of silver (Ag) and vanadium (V) increased proportionally to the concentrations of AgVO3. Topography analysis showed differences in components distribution on the surface of the specimens. The sealers incorporated with AgVO3 of AH Plus presented a lower setting time than the control group (p<0.05). For Sealer 26 and Endomethasone N, the incorporation of AgVO3 increased the setting time in relation to control group (p<0.05). Conclusions. The modification of endodontic sealers by AgVO3 increased the atomic percentage of Ag and V proportionally to the concentration of the nanomaterial and changed the atomic percentage of the sealer components and setting times. It cannot be affirmed that the AgVO3 promote differences in the antimicrobial activity of freshly sealers, and further investigations of the antimicrobial activity of the set sealers should be carried out.
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Affiliation(s)
- Ana Beatriz Vilela Teixeira
- Dental Materials and Prosthesis Department, Ribeirão Preto School of Dentistry, University of São Paulo, 14040-904 Ribeirão Preto, SP, Brazil
| | - Caroline de Carvalho Honorato Silva
- Dental Materials and Prosthesis Department, Ribeirão Preto School of Dentistry, University of São Paulo, 14040-904 Ribeirão Preto, SP, Brazil
| | - Oswaldo Luiz Alves
- Laboratory of Solid State Chemistry, Institute of Chemistry, University of Campinas (Unicamp), 13083-970 Campinas, SP, Brazil
| | - Andréa Cândido dos Reis
- Dental Materials and Prosthesis Department, Ribeirão Preto School of Dentistry, University of São Paulo, 14040-904 Ribeirão Preto, SP, Brazil
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Meyenberg Cunha-de Padua M, Noleto GR, de Oliveira Petkowicz CL, Cadena SMSC, Bost F, Pouysségur J, Mazure NM. Hypoxia protects against the cell death triggered by oxovanadium-galactomannan complexes in HepG2 cells. Cell Mol Biol Lett 2019; 24:18. [PMID: 30949212 PMCID: PMC6421655 DOI: 10.1186/s11658-019-0135-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 01/18/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Polysaccharides from various sources have been used in traditional medicine for centuries. The beneficial pharmacological effects of plant-derived polysaccharides include anti-tumor activity. METHODS Here, we evaluated the anti-cancer effect of the MSAGM:VO complex under hypoxic conditions (1% oxygen). MSAGM:VO is a complex of the hydrolysate of galactomannan (MSAGM) from Schizolobium amazonicum with oxovanadium (IV/V). The hepatocellular carcinoma (HCC) cell line HepG2 was selected as HCC are one of the most hypoxic solid tumors. RESULTS Our results showed that the strong apoptotic activity of MSAGM:VO observed in HepG2 cells under normoxic conditions was completely lost under hypoxic conditions. We found a dynamic balance between the pro- and anti-apoptotic members of the Bcl-2 protein family. The expressions of anti-apoptotic Mcl-1 and Bcl-XL increased in hypoxia, whereas the expression of pro-apoptotic Bax decreased. MSAGM:VO strongly induced autophagy, which was previously characterized as a pro-survival mechanism in hypoxia. These results demonstrate total elimination of the anti-cancer activity of MSAGM:VO with activation of autophagy under conditions of hypoxia. CONCLUSION Although this study is a proof-of-concept of the impact of hypoxia on the potential of polysaccharides, further study is encouraged. The anti-tumor activity of polysaccharides could be achieved in normoxia or through raising the activity of the immune system. In addition, combination strategies for therapy with anti-autophagic drugs could be proposed.
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Affiliation(s)
- Monique Meyenberg Cunha-de Padua
- Department of Biochemistry and Molecular Biology, Federal University of Parana, Curitiba, Brazil
- Institute for Research on Cancer and Aging of Nice, CNRS-UMR 7284-Inserm U1081, University of Nice Sophia-Antipolis, Centre Antoine Lacassagne, 33 Ave. de Valombrose, 06189 Nice, France
- Present Address: INSERM U1065, C3M, 151 Route de St Antoine de Ginestière, BP2 3194, 06204 Nice Cedex 03, France
| | | | | | | | - Frédéric Bost
- Present Address: INSERM U1065, C3M, 151 Route de St Antoine de Ginestière, BP2 3194, 06204 Nice Cedex 03, France
| | - Jacques Pouysségur
- Institute for Research on Cancer and Aging of Nice, CNRS-UMR 7284-Inserm U1081, University of Nice Sophia-Antipolis, Centre Antoine Lacassagne, 33 Ave. de Valombrose, 06189 Nice, France
- Medical Biology Department, Centre Scientifique de Monaco (CSM), Monaco, Monaco
| | - Nathalie M. Mazure
- Institute for Research on Cancer and Aging of Nice, CNRS-UMR 7284-Inserm U1081, University of Nice Sophia-Antipolis, Centre Antoine Lacassagne, 33 Ave. de Valombrose, 06189 Nice, France
- Present Address: INSERM U1065, C3M, 151 Route de St Antoine de Ginestière, BP2 3194, 06204 Nice Cedex 03, France
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Abstract
BACKGROUND Diabetes is a metabolic disorder, whose incidences are increasing day by day. Various classes of anti-diabetic drugs are clinically approved by the Food and Drug Administration (FDA) for the treatment of diabetes mellitus, but unfortunately, none of them is able to treat this condition. Thus, the exploration of novel mechanistic pathways of existing molecules may help to develop more safe and effective anti-diabetic agents. Sodium orthovanadate is a well known common laboratory agent used to preserve the protein tyrosyl phosphorylation state of the protein. METHODS The data related to sodium orthovanadate and diabetes mellitus has been collected from Pubmed. RESULTS Various reports have indicated the potential of sodium orthovanadate as Protein Tyrosine Phosphatase (PTP1B) inhibitors which play an important role in the pathogenesis of diabetes. However, safety of Sodium orthovanadate is still questionable. CONCLUSION The sodium orthovanadate could be developed as an anti-diabetic agent. However, further studies are required to confirm its safety profile in the treatment of diabetes mellitus before starting a clinical trial.
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Affiliation(s)
- Divya Rana
- Department of Pharmacology, Indo-Soviet Friendship Pharmacy College (ISFCP), Moga, Punjab, India
| | - Anoop Kumar
- Department of Pharmacology, Indo-Soviet Friendship Pharmacy College (ISFCP), Moga, Punjab, India
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Zhou L, Yi Y, Yuan Q, Zhang J, Li Y, Wang P, Xu M, Xie S. VAOS, a novel vanadyl complexes of alginate saccharides, inducing apoptosis via activation of AKT-dependent ROS production in NSCLC. Free Radic Biol Med 2018; 129:177-185. [PMID: 30223019 DOI: 10.1016/j.freeradbiomed.2018.09.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/05/2018] [Accepted: 09/14/2018] [Indexed: 02/04/2023]
Abstract
Previous studies have confirmed that protein tyrosine phosphatase 1B (PTP1B) can promote tumour progression in non-small cell lung cancer (NSCLC). Vanadyl alginate oligosaccharides (VAOS) is a new coordination compounds that possesses a good PTP1B inhibitory activity. However, the potent anticancer efficacy of VAOS in human NSCLC requires further study. In this study, VAOS exhibited effective inhibitory effects in NSCLC both in cultured cells and in a xenograft mouse model. VAOS was further identified to induce NSCLC cell apoptosis through activating protein kinase B (AKT) to elevate intracellular reactive oxygen species (ROS) levels by increasing in oxygen consumption and impairing the ROS-scavenging system. Neither silencing of PTP1B by siRNA nor transient overexpression of PTP1B had an effect on the AKT phosphorylation triggered by VAOS, indicating that PTP1B inhibition was not involved in VAOS-induced apoptosis. Through phosphorus colorimetric assay, we demonstrated that VAOS notably inhibited phosphatase and tensin homologue deleted on chromosome 10 (PTEN) dephosphorylation activity, another member of the protein tyrosine phosphatases (PTPases)-upstream factor of AKT. Interestingly, PTEN knockdown sensitized cells to VAOS, whereas ectopic expression of PTEN markedly rescued VAOS-mediated lethality. In vivo, VAOS treatment markedly reduced PTEN activity and tumour cell burden with low systemic toxicity. Thus, our data not only provided a new therapeutic drug candidate for NSCLC, but presented new understanding into the pharmacological research of VAOS.
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MESH Headings
- A549 Cells
- Alginates/chemical synthesis
- Alginates/pharmacology
- Animals
- Antineoplastic Agents/chemical synthesis
- Antineoplastic Agents/pharmacology
- Apoptosis/drug effects
- Apoptosis/genetics
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Cell Survival/drug effects
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Lung Neoplasms/drug therapy
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- PTEN Phosphohydrolase/antagonists & inhibitors
- PTEN Phosphohydrolase/genetics
- PTEN Phosphohydrolase/metabolism
- Phosphorylation
- Protein Tyrosine Phosphatase, Non-Receptor Type 1/genetics
- Protein Tyrosine Phosphatase, Non-Receptor Type 1/metabolism
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Reactive Oxygen Species/agonists
- Reactive Oxygen Species/metabolism
- Signal Transduction
- Tumor Burden/drug effects
- Vanadates/chemical synthesis
- Vanadates/pharmacology
- Xenograft Model Antitumor Assays
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Affiliation(s)
- Ling Zhou
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong 264003, PR China; The Key Laboratory of Traditional Chinese Medicine Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine, School of Pharmacy, Binzhou Medical University, YanTai, ShanDong 264003, PR China
| | - Yuetao Yi
- Yantai Institute of Coastal Zone Research Chinese Academy of Sciences, Yantai 264003, PR China
| | - Qing Yuan
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong 264003, PR China
| | - Jing Zhang
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong 264003, PR China
| | - Youjie Li
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong 264003, PR China
| | - Pingyu Wang
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong 264003, PR China
| | - Maolei Xu
- The Key Laboratory of Traditional Chinese Medicine Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine, School of Pharmacy, Binzhou Medical University, YanTai, ShanDong 264003, PR China.
| | - Shuyang Xie
- Key Laboratory of Tumor Molecular Biology in Binzhou Medical University, Department of Biochemistry and Molecular Biology, Binzhou Medical University, YanTai, ShanDong 264003, PR China.
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Žižić M, Zakrzewska J, Tešanović K, Bošković E, Nešović M, Karaman M. Effects of vanadate on the mycelium of edible fungus Coprinus comatus. J Trace Elem Med Biol 2018; 50:320-326. [PMID: 30262298 DOI: 10.1016/j.jtemb.2018.07.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 07/12/2018] [Accepted: 07/20/2018] [Indexed: 10/28/2022]
Abstract
Vanadate is proposed to play a pivotal role in application of edible fungus Coprinus comatus for medical purposes. In this study the concentration of extracellular vanadate acceptable for the submerged cultivation of C. comatus mycelium was established. The mycelium could grow, and overcome vanadate toxic effects, up to the concentration of 3.3 mM. Moreover, in this condition, at the end of the exponential phase of growth, biomass yield was almost identical to that in the control. 31P NMR spectroscopy showed that addition of 10 mM vanadate to the mycelium in the exponential phase of growth provoked instantaneous increase of a sugar phosphates level which could be related to changes in activities of glycolytic enzymes. Exposure to higher vanadate concentration was toxic for the cell. 51V NMR measurements revealed that monomer of vanadate is present in the cytoplasm causing the metabolic changes. C. comatus has also capacity for vanadate reduction, as shown by EPR measurements, but vanadyl uptake is significantly less comparing to vanadate.
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Affiliation(s)
- Milan Žižić
- Department of Life Sciences, Institute for Multidisciplinary Research, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia.
| | - Joanna Zakrzewska
- Institute of General and Physical Chemistry, Studentski trg 12 11158 Belgrade, Serbia
| | - Kristina Tešanović
- Department of Physiology and Biophysics, Faculty of Biology, University of Belgrade, Studentski trg 16 11158 Belgrade, Serbia
| | - Eleonora Bošković
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia
| | - Milica Nešović
- Institute of General and Physical Chemistry, Studentski trg 12 11158 Belgrade, Serbia
| | - Maja Karaman
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia
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Karginov AV, Fokina AV, Kang HA, Kalebina TS, Sabirzyanova TA, Ter-Avanesyan MD, Agaphonov MO. Dissection of differential vanadate sensitivity in two Ogataea species links protein glycosylation and phosphate transport regulation. Sci Rep 2018; 8:16428. [PMID: 30401924 PMCID: PMC6219546 DOI: 10.1038/s41598-018-34888-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 10/24/2018] [Indexed: 11/08/2022] Open
Abstract
The closely related yeasts Ogataea polymorpha and O. parapolymorpha differ drastically from each other by sensitivity to the toxic phosphate analog vanadate. Search for genes underlying this difference revealed two genes, one designated as ABV1 (Alcian Blue staining, Vanadate resistance), which encodes a homologue of Saccharomyces cerevisiae Mnn4 responsible for attachment of mannosylphosphate to glycoside chains of secretory proteins, and the other designated as its S. cerevisiae homologue PHO87, encoding the plasma membrane low affinity phosphate sensor/transporter. The effect of Pho87 on vanadate resistance was bidirectional, since it decreased the resistance on phosphate-depleted medium, but was required for pronounced protection against vanadate by external phosphate. This highlights the dual function of this protein as a low affinity phosphate transporter and an external phosphate sensor. Involvement of Pho87 in phosphate sensing was confirmed by its effects on regulation of the promoter of the PHO84 gene, encoding a high affinity phosphate transporter. The effect of Abv1 was also complex, since it influenced Pho87 level and enhanced repression of the PHO84 promoter via a Pho87-independent pathway. Role of the identified genes in the difference in vanadate resistance between O. polymorpha and O. parapolymorpha is discussed.
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Affiliation(s)
- Azamat V Karginov
- Bach Institute of Biochemistry, Research Center of Biotechnology RAS, Moscow, Russian Federation
| | - Anastasia V Fokina
- Bach Institute of Biochemistry, Research Center of Biotechnology RAS, Moscow, Russian Federation
| | - Hyun Ah Kang
- Department of Life Science, Chung-Ang University, Seoul, Republic of Korea
| | - Tatyana S Kalebina
- Department of Molecular Biology, Biological Faculty, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Tatyana A Sabirzyanova
- Department of Molecular Biology, Biological Faculty, Lomonosov Moscow State University, Moscow, Russian Federation
| | - Michael D Ter-Avanesyan
- Bach Institute of Biochemistry, Research Center of Biotechnology RAS, Moscow, Russian Federation
| | - Michael O Agaphonov
- Bach Institute of Biochemistry, Research Center of Biotechnology RAS, Moscow, Russian Federation.
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Skalicky M, Kubes J, Hejnak V, Tumova L, Martinkova J, Martin J, Hnilickova H. Isoflavones Production and Possible Mechanism of Their Exudation in Genista tinctoria L. Suspension Culture after Treatment with Vanadium Compounds. Molecules 2018; 23:E1619. [PMID: 29970854 PMCID: PMC6099964 DOI: 10.3390/molecules23071619] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 06/28/2018] [Accepted: 06/29/2018] [Indexed: 11/16/2022] Open
Abstract
The family Fabaceae traditionally serves as a food and herbal remedies source. Certain plants serve for treatment of menopausal symptoms based on a presence of typical secondary metabolites, isoflavones. Beside soybean and clovers, other plants or cultures in vitro can produce these molecules. A cultivation in vitro can be enhanced by elicitation that stimulates metabolites biosynthesis via stress reaction. Vanadium compounds have been already described as potential elicitors, and the aim of this study was to determine the impact of NH₄VO₃ and VOSO₄ solutions on isoflavones production in Genista tinctoria L. cell cultures. The significant increase of isoflavones content, such as genistin, genistein, or formononetin, was measured in a nutrient medium or dry mass after NH₄VO₃ treatment for 24 or 48 h. The possible transport mechanism of isoflavones release as a result of elicitation was further evaluated. An incubation with different transport inhibitors prior to elicitation took effect on isoflavones content in the medium. However, there was a non-ended result for particular metabolites such as genistein and daidzein, where ATP-binding cassette (ABC) or, alternatively, multidrug and toxin extrusion (MATE) proteins can participate. Possible elicitation by some inhibitors was discussed as a result of their pleiotropic effect. Despite this outcome, the determination of the transport mechanism is an important step for identification of the specific transporter.
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Affiliation(s)
- Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 165 00 Prague, Czech Republic.
| | - Jan Kubes
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 165 00 Prague, Czech Republic.
- Department of Pharmacognosy, Faculty of Pharmacy, Charles University, 500 02 Hradec Králové, Czech Republic.
| | - Vaclav Hejnak
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 165 00 Prague, Czech Republic.
| | - Lenka Tumova
- Department of Pharmacognosy, Faculty of Pharmacy, Charles University, 500 02 Hradec Králové, Czech Republic.
| | - Jaroslava Martinkova
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 165 00 Prague, Czech Republic.
| | - Jan Martin
- Department of Pharmacognosy, Faculty of Pharmacy, Charles University, 500 02 Hradec Králové, Czech Republic.
| | - Helena Hnilickova
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 165 00 Prague, Czech Republic.
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Guo S, Yang W, Zhao M, Tian R, Zhang B, Qi Y. In Vitro Anticandidal Activity and Mechanism of a Polyoxovanadate Functionalized by Zn-Fluconazole Complexes. Molecules 2018; 23:molecules23051122. [PMID: 29747400 PMCID: PMC6100367 DOI: 10.3390/molecules23051122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 04/25/2018] [Accepted: 05/03/2018] [Indexed: 11/16/2022] Open
Abstract
The rise in the number of fungal infections is requiring the rapid development of novel antifungal agents. A new polyoxovanadate functionalized by Zn-fluconazole coordination complexes, Zn3(FLC)6V10O28·10H2O (ZnFLC) (FLC = fluconazole) has been synthesized and evaluated for in vitro antifungal against Candida species. The identity of ZnFLC were confirmed by elemental analysis, IR spectrum, and single-crystal X-ray diffraction. The antifungal activities of ZnFLC was screened in 19 Candida species strains using the microdilution checkerboard technique. The minimum inhibitory concentration (MIC80) value of ZnFLC is 4 μg/mL on the azole-resistant clinical isolates of C. albicans HL973, which is lower than the positive control, FLC. The mechanism of ZnFLC against C. albicans HL973 showed that ZnFLC damaged the fungal cell membrane and reduced the ergosterol content. The expression of ERG1, ERG7, ERG11 ERG27, and ERG28, which have effects on the synthesis of ergosterol, were all significantly upregulated by ZnFLC.
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Affiliation(s)
- Shuanli Guo
- School of Public Health, Jilin University, Changchun 130021, China.
| | - Wei Yang
- College of Basic Medical Science, Jilin University, Changchun 130021, China.
| | - Mingming Zhao
- School of Public Health, Jilin University, Changchun 130021, China.
| | - Rui Tian
- School of Public Health, Jilin University, Changchun 130021, China.
| | - Boyu Zhang
- School of Public Health, Jilin University, Changchun 130021, China.
| | - Yanfei Qi
- School of Public Health, Jilin University, Changchun 130021, China.
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35
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Machado LESF, Page R, Peti W. 1H, 15N and 13C sequence specific backbone assignment of the vanadate inhibited hematopoietic tyrosine phosphatase. Biomol NMR Assign 2018; 12:5-9. [PMID: 28856606 PMCID: PMC5832517 DOI: 10.1007/s12104-017-9770-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 08/28/2017] [Indexed: 06/07/2023]
Abstract
The sequence-specific backbone assignment of hematopoietic protein tyrosine phosphatase (HePTP; PTPN7) in presence of vanadate has been determined, based on triple-resonance experiments using uniformly [13C,15N]-labeled protein. These assignments facilitate further studies of HePTP in the presence of inhibitors to target leukemia and provide further insights into the function of protein tyrosine phosphatases.
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Affiliation(s)
- Luciana E S F Machado
- Department of Molecular Pharmacology, Physiology and Biotechnology, Brown University, Providence, RI, 02912, USA
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Rebecca Page
- Department of Molecular Biology, Cell Biology and Biochemistry, Brown University, Providence, RI, 02912, USA
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA
| | - Wolfgang Peti
- Department of Molecular Pharmacology, Physiology and Biotechnology, Brown University, Providence, RI, 02912, USA.
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, AZ, 85721, USA.
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36
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Lu WJ, Lin HJ, Janganan TK, Li CY, Chin WC, Bavro VN, Lin HTV. ATP-Binding Cassette Transporter VcaM from Vibrio cholerae is Dependent on the Outer Membrane Factor Family for Its Function. Int J Mol Sci 2018; 19:ijms19041000. [PMID: 29584668 PMCID: PMC5979437 DOI: 10.3390/ijms19041000] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 03/23/2018] [Accepted: 03/25/2018] [Indexed: 11/16/2022] Open
Abstract
Vibrio cholerae ATP-binding cassette transporter VcaM (V. cholerae ABC multidrug resistance pump) has previously been shown to confer resistance to a variety of medically important drugs. In this study, we set to analyse its properties both in vitro in detergent-solubilised state and in vivo to differentiate its dependency on auxiliary proteins for its function. We report the first detailed kinetic parameters of purified VcaM and the rate of phosphate (Pi) production. To determine the possible functional dependencies of VcaM on the tripartite efflux pumps we then utilized different E. coli strains lacking the principal secondary transporter AcrB (Acriflavine resistance protein), as well as cells lacking the outer membrane factor (OMF) TolC (Tolerance to colicins). Consistent with the ATPase function of VcaM we found it to be susceptible to sodium orthovanadate (NaOV), however, we also found a clear dependency of VcaM function on TolC. Inhibitors targeting secondary active transporters had no effects on either VcaM-conferred resistance or Hoechst 33342 accumulation, suggesting that VcaM might be capable of engaging with the TolC-channel without periplasmic mediation by additional transporters. Our findings are indicative of VcaM being capable of a one-step substrate translocation from cytosol to extracellular space utilising the TolC-channel, making it the only multidrug ABC-transporter outside of the MacB-family with demonstrable TolC-dependency.
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Affiliation(s)
- Wen-Jung Lu
- Department of Food Science, National Taiwan Ocean University, No. 2, Pei-Ning Road, Keelung 202, Taiwan.
| | - Hsuan-Ju Lin
- Department of Food Science, National Taiwan Ocean University, No. 2, Pei-Ning Road, Keelung 202, Taiwan.
| | - Thamarai K Janganan
- School of Life Sciences, University of Bedfordshire, University Square, Luton LU1 3JU, UK.
| | - Cheng-Yi Li
- Department of Food Science, National Taiwan Ocean University, No. 2, Pei-Ning Road, Keelung 202, Taiwan.
| | - Wei-Chiang Chin
- Department of Food Science, National Taiwan Ocean University, No. 2, Pei-Ning Road, Keelung 202, Taiwan.
| | - Vassiliy N Bavro
- School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK.
| | - Hong-Ting Victor Lin
- Department of Food Science, National Taiwan Ocean University, No. 2, Pei-Ning Road, Keelung 202, Taiwan.
- Center of Excellence for the Oceans, National Taiwan Ocean University, No. 2, Pei-Ning Road, Keelung 202, Taiwan.
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Regmi C, Dhakal D, Lee SW. Visible-light-induced Ag/BiVO 4 semiconductor with enhanced photocatalytic and antibacterial performance. Nanotechnology 2018; 29:064001. [PMID: 29219840 DOI: 10.1088/1361-6528/aaa052] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
An Ag-loaded BiVO4 visible-light-driven photocatalyst was synthesized by the microwave hydrothermal method followed by photodeposition. The photocatalytic performance of the synthesized samples was evaluated on a mixed dye (methylene blue and rhodamine B), as well as bisphenol A in aqueous solution. Similarly, the disinfection activities of synthesized samples towards the Gram-negative Escherichia coli (E. coli) in a model cell were investigated under irradiation with visible light (λ ≥ 420 nm). The synthesized samples have monoclinic scheelite structure. Photocatalytic results showed that all Ag-loaded BiVO4 samples exhibited greater degradation and a higher mineralization rate than the pure BiVO4, probably due to the presence of surface plasmon absorption that arises due to the loading of Ag on the BiVO4 surface. The optimum Ag loading of 5 wt% has the highest photocatalytic performance and greatest stability with pseudo-first-order rate constants of 0.031 min-1 and 0.023 min-1 for the degradation of methylene blue and rhodamine B respectively in a mixture with an equal volume and concentration of each dye. The photocatalytic degradation of bisphenol A reaches 76.2% with 5 wt% Ag-doped BiVO4 within 180 min irradiation time. Similarly, the Ag-loaded BiVO4 could completely inactivate E. coli cells within 30 min under visible light irradiation. The disruption of the cell membrane as well as degradation of protein and DNA exhibited constituted evidence for antibacterial activity towards E. coli. Moreover, the bactericidal mechanisms involved in the photocatalytic disinfection process were systematically investigated.
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Affiliation(s)
- Chhabilal Regmi
- Department of Environmental and Biochemical Engineering, Sun Moon University, Chungnam 31460, Republic of Korea
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Hill T, Rice RH. DUOX expression in human keratinocytes and bronchial epithelial cells: Influence of vanadate. Toxicol In Vitro 2018; 46:257-264. [PMID: 29031483 PMCID: PMC5683910 DOI: 10.1016/j.tiv.2017.10.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 09/06/2017] [Accepted: 10/06/2017] [Indexed: 01/10/2023]
Abstract
Dual oxygenases (DUOX) 1 and 2, expressed in many animal tissues, participate in host defense at mucosal surfaces and may have important signaling roles through generation of reactive oxygen. Present work addresses their expression in cultured human epidermal keratinocytes and effects of cytokines and metal/metalloid compounds. Both DUOX1 and 2 were expressed at much higher levels after confluence than in the preconfluent state. Maximal DUOX1 mRNA levels were 50 fold those of DUOX2. DUOX1 and 2 were induced ≈3 fold by interleukin 4, but only DUOX1 was induced by interferon gamma (IFNγ). In human bronchial HBE1 cells, by contrast, interleukin 4 induced only DUOX 1, and IFNγ induced only DUOX2. A survey in the keratinocytes of metal/metalloid compounds showed that arsenite, antimonite, chromate, cadmium, copper, lead and vanadate suppressed DUOX1 levels but did not prevent interleukin 4 stimulation. Effects on DUOX2 were less dramatic, except that vanadate potentiated the stimulation by IFNγ up to 7 fold. The results indicate that epithelial cell types of different tissue origins can differ in their cytokine regulation and that epidermal cells can exhibit striking alterations in response due to certain metal/metalloid exposures.
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Affiliation(s)
- Thomas Hill
- Department of Environmental Toxicology, University of California at Davis, USA
| | - Robert H Rice
- Department of Environmental Toxicology, University of California at Davis, USA.
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Oliscovicz NF, de Castro DT, Valente MLDC, Watanabe E, Lepri CP, Dos Reis AC. Surface treatment of implant materials with antimicrobial nanoparticulates. Gen Dent 2018; 66:66-73. [PMID: 29303754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study analyzed nanostructured silver vanadate (AgVO3) films on certain substrate surfaces found in dental implant devices in order to see if these films promote antimicrobial activity. Enamel and glaze vehicles were used to apply the nanomaterial (0.0% [control], 2.5%, 5.0%, and 10.0% concentrations) on 3 substrates (280 specimens per substrate): polytetrafluoroethylene (PTFE), polyacetal, and acrylic resin. An agar diffusion method was performed in triplicate to determine the antimicrobial activity against 8 microorganisms. Physical behavior and morphologic properties were also analyzed. The growth of Pseudomonas aeruginosa, Escherichia coli, Streptococcus mutans, Enterococcus faecalis, and Staphylococcus aureus was inhibited with the application of AgVO3. For Candida albicans, Porphyromonas gingivalis, and Prevotella intermedia, no antimicrobial activity was observed. Except for S mutans, the type of substrate did not influence the microbiologic results. The glaze showed greater antimicrobial efficacy against S aureus, E faecalis, and S mutans than did the enamel vehicle (P < 0.05). Films with 10% AgVO3 showed greater antimicrobial activity (P < 0.05). The choice of substrate or vehicle did not influence the surface roughness (P > 0.05); however, the application of 10% AgVO3 caused greater surface change (P < 0.05). The application of the nanomaterial did not influence the surface hardness of substrates when compared with the control group (P > 0.05). The use of the glaze as a vehicle provided higher hardness values (P < 0.05).
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Liu J, Fu H, Chang F, Wang J, Zhang S, Caudle Y, Zhao J, Yin D. Sodium orthovanadate suppresses palmitate-induced cardiomyocyte apoptosis by regulation of the JAK2/STAT3 signaling pathway. Apoptosis 2016; 21:546-57. [PMID: 26921179 DOI: 10.1007/s10495-016-1231-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Elevated circulatory free fatty acids (FFAs) especially saturated FFAs, such as palmitate (PA), are detrimental to the heart. However, mechanisms responsible for this phenomenon remain unknown. Here, the role of JAK2/STAT3 in PA-induced cytotoxicity was investigated in cardiomyocytes. We demonstrate that PA suppressed the JAK2/STAT3 pathway by dephosphorylation of JAK2 (Y1007/1008) and STAT3 (Y705), and thus blocked the translocation of STAT3 into the nucleus. Conversely, phosphorylation of S727, another phosphorylated site of STAT3, was increased in response to PA treatment. Pretreatment of JNK inhibitor, but not p38 MAPK inhibitor, inhibited STAT3 (S727) activation induced by PA and rescued the phosphorylation of STAT3 (Y705). The data suggested that JNK may be another upstream factor regulating STAT3, and verified the important function of P-STAT3 (Y705) in PA-induced cardiomyocyte apoptosis. Sodium orthovanadate (SOV), a protein tyrosine phosphatase inhibitor, obviously inhibited PA-induced apoptosis by restoring JAK2/STAT3 pathways. This effect was diminished by STAT3 inhibitor Stattic. Collectively, our data suggested a novel mechanism that the inhibition of JAK2/STAT3 activation was responsible for palmitic lipotoxicity and SOV may act as a potential therapeutic agent by targeting JAK2/STAT3 in lipotoxic cardiomyopathy treatment.
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Affiliation(s)
- Jing Liu
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan, 250100, People's Republic of China
| | - Hui Fu
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan, 250100, People's Republic of China
| | - Fen Chang
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan, 250100, People's Republic of China
| | - Jinlan Wang
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan, 250100, People's Republic of China
| | - Shangli Zhang
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan, 250100, People's Republic of China
| | - Yi Caudle
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN, 37614, USA
| | - Jing Zhao
- Institute of Developmental Biology, School of Life Science, Shandong University, Jinan, 250100, People's Republic of China.
| | - Deling Yin
- School of Pharmacy, Central South University, Changsha, 410023, People's Republic of China.
- Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN, 37614, USA.
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Cong XQ, Piao MH, Li Y, Xie L, Liu Y. Bis(maltolato)oxovanadium(IV) (BMOV) Attenuates Apoptosis in High Glucose-Treated Cardiac Cells and Diabetic Rat Hearts by Regulating the Unfolded Protein Responses (UPRs). Biol Trace Elem Res 2016; 173:390-8. [PMID: 26983714 DOI: 10.1007/s12011-016-0668-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 03/06/2016] [Indexed: 12/12/2022]
Abstract
Endoplasmic reticulum stress (ERS)-induced unfolded protein response (UPR) and the subsequent cell deaths are essential steps in the pathogenesis of diabetic cardiomyopathy (DCM), a main cause of diabetics' morbidity and mortalities. The bis(maltolato)oxovanadium(IV) (BMOV), a potent oral vanadium complex with anti-diabetic properties and insulin-mimicking effects, was shown to improve cardiac dysfunctions in diabetic models. Here, we examined the effects of BMOV on UPR pathway protein expression and apoptotic cell deaths in both high glucose-treated cardiac H9C2 cells and in the hearts of diabetic rats. We show that in both the high glucose-treated cardiac cells and in the hearts of streptozotocin (STZ) diabetic rats, there was an overall activation of the UPR signaling, including both apoptotic (e.g., the cascades of PERK/EIf2α/ATF4/CHOP and of IRE1/caspase 12/caspase 3) and pro-survival (GRP78 and XBP1) signaling. A high amount of apoptotic cell deaths was also detected in both diabetic conditions. The administration of BMOV suppressed both the apoptotic and pro-survival UPR signaling and significantly attenuated apoptotic cell deaths in both conditions. The overall suppression of UPR signaling by BMOV suggests that the drug protects diabetic cardiomyopathy by counteracting reactive oxygen species (ROS) and endoplasmic reticulum (ER) stress. Our findings lend support to promote the use of BMOV in the treatment of diabetic heart diseases.
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Affiliation(s)
- Xiao-Qiang Cong
- Department of Cardiology, Bethune First Hospital of Jilin University, 71 Xinmin St., Chaoyang District, ChangChun, 130021, China.
| | - Mei-Hua Piao
- Department of Anesthesiology, Bethune First Hospital of Jilin University, 71 Xinmin St., Chaoyang District, Changchun, Jilin, 130021, China
| | - Ying Li
- The People's Hospital of Jilin Province, Changchun, 130021, China
| | - Lin Xie
- School of Public Health, Jilin University, Changchun, 130021, China
| | - Ya Liu
- School of Public Health, Jilin University, Changchun, 130021, China
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Chatterjee N, Anwar T, Islam NS, Ramasarma T, Ramakrishna G. Growth arrest of lung carcinoma cells (A549) by polyacrylate-anchored peroxovanadate by activating Rac1-NADPH oxidase signalling axis. Mol Cell Biochem 2016; 420:9-20. [PMID: 27435854 DOI: 10.1007/s11010-016-2761-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 07/07/2016] [Indexed: 01/11/2023]
Abstract
Hydrogen peroxide is often required in sublethal, millimolar concentrations to show its oxidant effects on cells in culture as it is easily destroyed by cellular catalase. Previously, we had shown that diperoxovanadate, a physiologically stable peroxovanadium compound, can substitute H2O2 effectively in peroxidation reactions. We report here that peroxovanadate when anchored to polyacrylic acid (PAPV) becomes a highly potent inhibitor of growth of lung carcinoma cells (A549). The early events associated with PAPV treatment included cytoskeletal modifications, increase in GTPase activity of Rac1, accumulation of the reactive oxygen species, and also increase in phosphorylation of H2AX (γH2AX), a marker of DNA damage. These effects persisted even at 24 h after removal of the compound and culminated in increased levels of p53 and p21 together with growth arrest. The PAPV-mediated growth arrest was significantly abrogated in cells pre-treated with the N-acetylcysteine, Rac1 knocked down by siRNA and DPI an inhibitor of NADPH oxidase. In conclusion, our results show that polyacrylate derivative of peroxovanadate efficiently arrests growth of A549 cancerous cells by activating the axis of Rac1-NADPH oxidase leading to oxidative stress and DNA damage.
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Affiliation(s)
- Nirupama Chatterjee
- Laboratory of Cancer Biology, Centre for DNA Fingerprinting and Diagnostics, Nampally, Hyderabad, 500001, India.
| | - Tarique Anwar
- Laboratory of Cancer Biology, Centre for DNA Fingerprinting and Diagnostics, Nampally, Hyderabad, 500001, India
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, D1 Vasant Kunj, New Delhi, 110070, India
- Graduate Studies, Manipal University, Manipal, 576104, India
| | - Nashreen S Islam
- Department of Chemical Sciences, Tezpur University, Tezpur, Assam, 784028, India
| | - T Ramasarma
- Laboratory of Cancer Biology, Centre for DNA Fingerprinting and Diagnostics, Nampally, Hyderabad, 500001, India
- Indian Institute of Science, Bangalore, 560012, India
| | - Gayatri Ramakrishna
- Laboratory of Cancer Biology, Centre for DNA Fingerprinting and Diagnostics, Nampally, Hyderabad, 500001, India.
- Department of Molecular and Cellular Medicine, Institute of Liver and Biliary Sciences, D1 Vasant Kunj, New Delhi, 110070, India.
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Kan WC, Lu TL, Ling P, Lee TH, Cho CY, Huang CYF, Jeng WY, Weng YP, Chiang CY, Wu JB, Lu TJ. Pervanadate induces Mammalian Ste20 Kinase 3 (MST3) tyrosine phosphorylation but not activation. J Inorg Biochem 2016; 160:33-9. [PMID: 27118027 DOI: 10.1016/j.jinorgbio.2016.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 04/08/2016] [Accepted: 04/12/2016] [Indexed: 11/18/2022]
Abstract
The yeast Ste20 (sterile) protein kinase, which is a serine/threonine kinase, responds to the stimulation of the G proteincoupled receptor (GPCR) pheromone receptor. Ste20 protein kinase serves as the critical component that links signaling from the GPCR/G proteins to the mitogen-activated protein kinase (MAPK) cascade in yeast. The yeast Ste20p functions as a MAP kinase kinase kinase kinase (MAP4K) in the pheromone response. Ste20-like kinases are structurally conserved from yeast to mammals. The mechanism by which MAP4K links GPCR to the MAPK pathway is less clearly defined in vertebrates. In addition to MAP4K, the tyrosine kinase cascade bridges G proteins and the MAPK pathway in vertebrate cells. Mammalian Ste20 Kinase 3 (MST3) has been categorized into the Ste20 family and has been reported to function in the regulation of cell polarity and migration. However, whether MST3 tyrosine phosphorylation regulates diverse signaling pathways is unknown. In this study, the tyrosine phosphatase inhibitor pervanadate was found to induce MST3 tyrosine phosphorylation in intact cells, and the activity of tyrosine-phosphorylated MST3 was measured. This tyrosine-directed phosphorylation was independent of MST3 activity. Parameters including protein conformation, Triton concentration and ionic concentration influenced the sensitivity of MST3 activity. Taken together, our data suggests that the serine/threonine kinase MST3 undergoes tyrosinedirected phosphorylation. The tyrosine-phosphorylated MST3 may create a docking site for the structurally conserved SH2/SH3 (Src Homology 2 and 3) domains within the Src oncoprotein. The unusual tyrosinephosphorylated MST3 may recruit MST3 to various signaling components.
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Affiliation(s)
- Wei-Chih Kan
- Department of Nephrology, Chi-Mei Medical Center, Tainan 701, Taiwan; Department of Medical Laboratory Science and Biotechnology, Chung Hwa University of Medical Technology, Tainan 701, Taiwan
| | - Te-Ling Lu
- School of Pharmacy, Tsuzuki Institute for Traditional Medicine, China Medical University, Taichung 404, Taiwan
| | - Pin Ling
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Te-Hsiu Lee
- Department of Medical Laboratory Science and Biotechnology, Chung Hwa University of Medical Technology, Tainan 701, Taiwan
| | - Chien-Yu Cho
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Chi-Ying F Huang
- Institute of Biopharmaceutical Sciences, National Yang-Ming University, Taipei 112, Taiwan
| | - Wen-Yih Jeng
- Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
| | - Yui-Ping Weng
- Graduate Institute of Biological Science and Technology, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Chun-Yen Chiang
- Department of Cardiology, Chi-Mei Medical Center, Tainan, Taiwan; Department of Optometry, Chung Hwa University of Medical Technology, Tainan, Taiwan
| | - Jin Bin Wu
- School of Pharmacy, Tsuzuki Institute for Traditional Medicine, China Medical University, Taichung 404, Taiwan
| | - Te-Jung Lu
- Department of Medical Laboratory Science and Biotechnology, Chung Hwa University of Medical Technology, Tainan 701, Taiwan.
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Zhang J, Yu H, Zhang Y, Wang Y, Li M, Zhang J, Duan L, Zhang M, Li Z. Increased abscisic acid levels in transgenic maize overexpressing AtLOS5 mediated root ion fluxes and leaf water status under salt stress. J Exp Bot 2016; 67:1339-55. [PMID: 26743432 PMCID: PMC4762378 DOI: 10.1093/jxb/erv528] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Abscisic acid (ABA) is a vital cellular signal in plants, and effective ABA signalling is pivotal for stress tolerance. AtLOS5 encoding molybdenum cofactor sulphurase is a key regulator of ABA biosynthesis. Here, transgenic AtLOS5 plants were generated to explore the role of AtLOS5 in salt tolerance in maize. AtLOS5 overexpression significantly up-regulated the expression of ZmVp14-2, ZmAO, and ZmMOCO, and increased aldehyde oxidase activities, which enhanced ABA accumulation in transgenic plants under salt stress. Concurrently, AtLOS5 overexpression induced the expression of ZmNHX1, ZmCBL4, and ZmCIPK16, and enhanced the root net Na(+) efflux and H(+) influx, but decreased net K(+) efflux, which maintained a high cytosolic K(+)/Na(+) ratio in transgenic plants under salt stress. However, amiloride or sodium orthovanadate could significantly elevate K(+) effluxes and decrease Na(+) efflux and H(+) influx in salt-treated transgenic roots, but the K(+) effluxes were inhibited by TEA, suggesting that ion fluxes regulated by AtLOS5 overexpression were possibly due to activation of Na(+)/H(+) antiport and K(+) channels across the plasma membrane. Moreover, AtLOS5 overexpression could up-regulate the transcripts of ZmPIP1:1, ZmPIP1:5, and ZmPIP2:4, and enhance root hydraulic conductivity. Thus transgenic plants had higher leaf water potential and turgor, which was correlated with greater biomass accumulation under salt stress. Thus AtLOS5 overexpression induced the expression of ABA biosynthetic genes to promote ABA accumulation, which activated ion transporter and PIP aquaporin gene expression to regulate root ion fluxes and water uptake, thus maintaining high cytosolic K(+) and Na(+) homeostasis and better water status in maize exposed to salt stress.
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Affiliation(s)
- Juan Zhang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Haiyue Yu
- State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Yushi Zhang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Yubing Wang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Maoying Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Jiachang Zhang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Liusheng Duan
- State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Mingcai Zhang
- State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Zhaohu Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
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Aureliano M. Decavanadate Toxicology and Pharmacological Activities: V10 or V1, Both or None? Oxid Med Cell Longev 2016; 2016:6103457. [PMID: 26904166 PMCID: PMC4745863 DOI: 10.1155/2016/6103457] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 12/24/2015] [Indexed: 02/07/2023]
Abstract
This review covers recent advances in the understanding of decavanadate toxicology and pharmacological applications. Toxicological in vivo studies point out that V10 induces several changes in several oxidative stress parameters, different from the ones observed for vanadate (V1). In in vitro studies with mitochondria, a particularly potent V10 effect, in comparison with V1, was observed in the mitochondrial depolarization (IC50 = 40 nM) and oxygen consumption (99 nM). It is suggested that mitochondrial membrane depolarization is a key event in decavanadate induction of necrotic cardiomyocytes death. Furthermore, only decavanadate species and not V1 potently inhibited myosin ATPase activity stimulated by actin (IC50 = 0.75 μM) whereas exhibiting lower inhibition activities for Ca(2+)-ATPase activity (15 μM) and actin polymerization (17 μM). Because both calcium pump and actin decavanadate interactions lead to its stabilization, it is likely that V10 interacts at specific locations with these proteins that protect against hydrolysis but, on the other hand, it may induce V10 reduction to oxidovanadium(IV). Putting it all together, it is suggested that the pharmacological applications of V10 species and compounds whose mechanism of action is still to be clarified might involve besides V10 and V1 also vanadium(IV) species.
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Affiliation(s)
- M. Aureliano
- 1Faculty of Sciences and Technology, University of Algarve, Campus of Gambelas, 8005-135 Faro, Portugal
- 2CCMar (Centre of Marine Sciences), University of Algarve, Campus of Gambelas, 8005-135 Faro, Portugal
- *M. Aureliano:
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Yang J, Zhang Z, Jiang S, Zhang M, Lu J, Huang L, Zhang T, Gong K, Yan S, Yang Z, Shao G. Vanadate-induced antiproliferative and apoptotic response in esophageal squamous carcinoma cell line EC109. J Toxicol Environ Health A 2016; 79:864-868. [PMID: 27599232 DOI: 10.1080/15287394.2016.1193115] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Vanadate is a transition element that present in nature and was shown to be a nonspecific inhibitor of protein tyrosine phosphatases. It was reported that vanadium (Vd) compounds exhibit antitumor actions in several cancer cell lines. This study aimed to examine the antiproliferative and apoptotic actions of different concentrations of sodium vanadate (NaVd) (+5) in esophageal squamous carcinoma cell line EC109 by determining the protein expression levels of cyclin D1 and caspase-3 following incubation for various times from 15 min up to 4 h. In addition, cell proliferation of EC109 treated with different concentrations (NaVd) was also measured using the MTT assay at 4, 12, 24, and 48 h. The cell cycle of EC109 cells exposed to different concentrations of NaVd was detected using flow cytometry determination at 24 h. Data showed that NaVd greater than 100 µM significantly increased cyclin D1. In contrast, reduced caspase-3 protein expression levels occurred at 50 µM. Cellular proliferation was significantly decreased at 50uM. The cell cycle was arrested at S phase with 100 µM NaVd. Taken together, data indicate that NaVd produced concentration- and time-dependent antitumor actions in EC109 cell line.
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Affiliation(s)
- Jie Yang
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Zhuxia Zhang
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Shuyuan Jiang
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Ming Zhang
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Jun Lu
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Lihua Huang
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Tao Zhang
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Kerui Gong
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Shaochun Yan
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Zhanjun Yang
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
| | - Guo Shao
- a Biomedicine Research Center and Basic Medical College , Baotou Medical College , Inner Mongolia , P. R. China
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Boostani R, Vakili R, Hosseiny SS, Shoeibi A, Fazeli B, Etemadi MM, Sabet F, Valizade N, Rezaee SA. Triple Therapy with Prednisolone, Pegylated Interferon and Sodium Valproate Improves Clinical Outcome and Reduces Human T-Cell Leukemia Virus Type 1 (HTLV-1) Proviral Load, Tax and HBZ mRNA Expression in Patients with HTLV-1-Associated Myelopathy/Tropical Spastic Paraparesis. Neurotherapeutics 2015; 12:887-95. [PMID: 26174324 PMCID: PMC4604181 DOI: 10.1007/s13311-015-0369-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Considering that there is no effective treatment for human T-cell leukemia virus type 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis, this study aimed to assess the impact of triple combination therapy-interferon-α, valproic acid, and prednisolone-on clinical outcomes, main HTLV-1 viral factors, and host anti-HTLV-1 antibody response. HTLV-1 proviral load (PVL), and HBZ and Tax mRNA expression levels were measured in peripheral blood mononuclear cells of 13 patients with HTLV-1-associated myelopathy/tropical spastic paraparesis before and after treatment with 180 μg pegylated interferon once a week, 10-20 mg/kg/day sodium valproate, and 5 mg/day prednisolone for 25 weeks using a TaqMan real-time polymerase chain reaction assay. Furthermore, anti-HTLV-1 titer, Osame Motor Disability Score, Ashworth spasticity scale, and urinary symptoms (through standard questionnaire and clinical monitoring) were assessed in patients before and after the treatment. HTLV-1 PVL and HBZ expression significantly decreased after the treatment [PVL from 1443 ± 282 to 660 ± 137 copies/10(4) peripheral blood mononuclear cells (p = 0.01); and HBZ from 8.0 ± 1.5 to 3.0 ± 0.66 (p < 0.01)]. Tax mRNA expression decreased after the treatment from 2.26 ± 0.45 to 1.44 ± 0.64, but this reduction was not statistically significant (p = 0.10). Furthermore, anti-HTLV-1 titer reduced dramatically after the treatment, from 3123 ± 395 to 815 ± 239 (p < 0.01). Clinical signs and symptoms, according to Osame Motor Disability Score and Ashworth score, improved significantly (both p < 0.01). Urinary symptoms and sensory disturbances with lower back pain were reduced, though not to a statistically significant degree. Although signs and symptoms of spasticity were improved, frequent urination and urinary incontinence were not significantly affected by the triple therapy. The results provide new insight into the complicated conditions underlying HTLV-1-associated diseases.
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Affiliation(s)
- Reza Boostani
- Department of Neurology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Rosita Vakili
- Center of Pathological and Medical Diagnostic Services, Iranian Academic Center for Education, Culture & Research (ACECR), Mashhad Branch, Mashhad, Iran
| | - Samane Sadat Hosseiny
- Department of Biology, Science and Research Branch, Islamic Azad University, Kurdistan, Iran
| | - Ali Shoeibi
- Department of Neurology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Bahare Fazeli
- Inflammation and Inflammatory Diseases Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Mehdi Etemadi
- Department of Neurology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Narges Valizade
- Inflammation and Inflammatory Diseases Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Abdolrahim Rezaee
- Inflammation and Inflammatory Diseases Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Liu Y, Xu J, Guo Y, Xue Y, Wang J, Xue C. Ameliorative effect of vanadyl(IV)-ascorbate complex on high-fat high-sucrose diet-induced hyperglycemia, insulin resistance, and oxidative stress in mice. J Trace Elem Med Biol 2015; 32:155-61. [PMID: 26302923 DOI: 10.1016/j.jtemb.2015.07.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 07/03/2015] [Accepted: 07/09/2015] [Indexed: 02/02/2023]
Abstract
There is mounting evidence demonstrating causative links between hyperglycemia, oxidative stress, and insulin resistance, the core pathophysiological features of type 2 diabetes mellitus. Using a combinational approach, we synthesized a vanadium-antioxidant (i.e., l-ascorbic acid) complex and examined its effect on insulin resistance and oxidative stress. This study was designed to examine whether vanadyl(IV)-ascorbate complex (VOAsc) would reduce oxidative stress, hyperglycemia, and insulin resistance in high-fat high-sucrose diet (HFSD)-induced type 2 diabetes in mice. Male C57BL/6J mice were fed a HFSD for 12 weeks to induce insulin resistance, rendering them diabetic. Diabetic mice were treated with rosiglitazone, sodium l-ascorbate, or VOAsc. At the end of treatment, fasting blood glucose, fasting serum insulin, homeostasis model assessment-insulin resistance index, and serum adipocytokine levels were measured. Serum levels of nitric oxide (NO) parameters were also determined. The liver was isolated and used for determination of malondialdehyde, reduced glutathione, and catalase levels, and superoxide dismutase and glutathione peroxidase activities. VOAsc groups exhibited significant reductions in serum adipocytokine and NO levels, and oxidative stress parameters compared to the corresponding values in the untreated diabetic mice. The results indicated that VOAsc is non-toxic. In conclusion, we identified VOAsc as a potentially effective adjunct therapy for the management of type 2 diabetes.
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Affiliation(s)
- Yanjun Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province, China.
| | - Jie Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province, China.
| | - Yongli Guo
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province, China.
| | - Yong Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province, China.
| | - Jingfeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province, China.
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province, China.
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Liu XX, Zhou K, Hu Y, Jin R, Lu LL, Jin CW, Lin XY. Oxalate synthesis in leaves is associated with root uptake of nitrate and its assimilation in spinach (Spinacia oleracea L.) plants. J Sci Food Agric 2015; 95:2105-2116. [PMID: 25243598 DOI: 10.1002/jsfa.6926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Revised: 09/13/2014] [Accepted: 09/16/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Excessive accumulation of oxalate in numerous vegetables adversely affects their quality as food. While it is known that nitrate could effectively stimulate oxalate accumulation in many vegetables, little information is available about the mechanism of nitrate-induced oxalate accumulation. In this study, we examined the association of oxalate synthesis with nitrate uptake and assimilation in two genotypes of spinach (Spinacia oleracea L.), Heizhenzhu and Weilv. RESULTS Increasing nitrate levels resulted in enhanced synthesis of oxalate, as well as increased root uptake of nitrate and leaf activities of nitrate reductase (NR) and glutamine synthetase (GS) for both genotypes. Correlation analysis revealed that oxalate accumulation in spinach leaves was positively related with rate of nitrate uptake by roots, as well as leaf activities of NR and GS. Addition of plasmalemma H(+)-ATPase inhibitor sodium vanadate (Na3VO4) significantly decreased leaf oxalate accumulation in both genotypes. Presence of NR or GS inhibitors led to reduction of leaf oxalate contents, GS/NR activities and decreased nitrate uptake rate. Significantly higher levels of nitrate root uptake, leaf NR and GS activities were observed in the high-oxalate genotype Heizhenzhu than in Weilv. CONCLUSION Oxalate synthesis in leaves of spinach is not only positively associated with root uptake of nitrate, but also with its assimilation within the plants.
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Affiliation(s)
- Xiao Xia Liu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Kai Zhou
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yan Hu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Rong Jin
- Agricultural Experimental Station, Zhejiang University, Hangzhou 310058, China
| | - Ling Li Lu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Subtropical Soil Science and Plant Nutrition of Zhejiang Province, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chong Wei Jin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Subtropical Soil Science and Plant Nutrition of Zhejiang Province, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xian Yong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Agricultural Experimental Station, Zhejiang University, Hangzhou 310058, China
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50
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Zhu C, Yang N, Ma X, Li G, Qian M, Ng D, Xia K, Gan L. Plasma membrane H(+)-ATPase is involved in methyl jasmonate-induced root hair formation in lettuce (Lactuca sativa L.) seedlings. Plant Cell Rep 2015; 34:1025-36. [PMID: 25686579 DOI: 10.1007/s00299-015-1762-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 12/22/2014] [Accepted: 02/08/2015] [Indexed: 05/27/2023]
Abstract
KEY MESSAGE Our results show that methyl jasmonate induces plasma membrane H (+) -ATPase activity and subsequently influences the apoplastic pH of trichoblasts to maintain a cell wall pH environment appropriate for root hair development. Root hairs, which arise from root epidermal cells, are tubular structures that increase the efficiency of water absorption and nutrient uptake. Plant hormones are critical regulators of root hair development. In this study, we investigated the regulatory role of the plasma membrane (PM) H(+)-ATPase in methyl jasmonate (MeJA)-induced root hair formation. We found that MeJA had a pronounced effect on the promotion of root hair formation in lettuce seedlings, but that this effect was blocked by the PM H(+)-ATPase inhibitor vanadate. Furthermore, MeJA treatment increased PM H(+)-ATPase activity in parallel with H(+) efflux from the root tips of lettuce seedlings and rhizosphere acidification. Our results also showed that MeJA-induced root hair formation was accompanied by hydrogen peroxide accumulation. The apoplastic acidification acted in concert with reactive oxygen species to modulate root hair formation. Our results suggest that the effect of MeJA on root hair formation is mediated by modulation of PM H(+)-ATPase activity.
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Affiliation(s)
- Changhua Zhu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
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