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Jamshidi-Parsian A, Jenkins SV, Tran A, Bragg A, Davis R, Griffin C, Siegel E, Dings RPM, Griffin RJ, Boysen G. CB-839 Induces Reversible Dormancy in Lung Tumor-cells. Eur J Pharmacol 2024:176912. [PMID: 39159716 DOI: 10.1016/j.ejphar.2024.176912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 07/31/2024] [Accepted: 08/15/2024] [Indexed: 08/21/2024]
Abstract
Glutaminase inhibitors are currently being explored as potential treatments for cancer. This study aimed to elucidate the molecular mechanisms underlying the effects of CB-839 on lung tumor cell lines compared to non-tumor cell lines. Viability assays based on NADPH-dependent dehydrogenases activity, ATP energy production, or mitochondrial reductase activity were used to determine that CB-839 caused significant tumor cell specific inhibition of cellular functions. Clonogenic survival assay revealed a dose dependent reduction in clonogenic survival of various lung tumor cells presenting estimated IC50 values between 10 and 90 nM, while no effect on non-tumor cells was observed. CB-839 led to a 20% reduction in glutaminase (GLS1, a mitochondrial enzyme that catalyzes the conversion of glutamine to glutamate) activity, and a dose-dependent reduced glutamine consumption in tumor cells and had no effect on non-tumor cells. Cell cycle analysis showed the CB-839 did not lead to cell cycle arrest. Apoptosis and necrosis assays revealed an only slight increase in apoptosis in tumor cells. Furthermore, a trypan blue exclusion assay revealed about 40% growth reduction in tumor cells at 0.1-1 μM CB-839 treatment. Surprisingly, treated cells resumed normal growth when re-plated in a drug-free medium, demonstrating reversibility. In hypoxic conditions, CB-839's effect on clonogenic survival was amplified in a dose dependent manner consistent with increased role of GLS1 for energy production under hypoxic conditions. In conclusion, these results suggest CB-839 efficacy is linked to temporary and reversible reduction in glutamine utilization suggesting induction of dormancy.
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Affiliation(s)
- Azemat Jamshidi-Parsian
- Department of Environmental Health Sciences, and The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Samir V Jenkins
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Amy Tran
- Department of Environmental Health Sciences, and The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Anna Bragg
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Rylie Davis
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Connor Griffin
- Department of Environmental Health Sciences, and The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Eric Siegel
- The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; Department of Biostatistics, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Ruud P M Dings
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Robert J Griffin
- Department of Radiation Oncology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Gunnar Boysen
- Department of Environmental Health Sciences, and The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
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Li K, Xu K, He Y, Yang Y, Tan M, Mao Y, Zou Y, Feng Q, Luo Z, Cai K. Oxygen Self-Generating Nanoreactor Mediated Ferroptosis Activation and Immunotherapy in Triple-Negative Breast Cancer. ACS NANO 2023; 17:4667-4687. [PMID: 36861638 DOI: 10.1021/acsnano.2c10893] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The hypoxia microenvironment of solid tumors poses a technological bottleneck for ferroptosis and immunotherapy in clinical oncology. Nanoreactors based on special physiological signals in tumor cells are able to avoid various tumor tolerance mechanisms by alleviating the intracellular hypoxia environment. Herein we reported a nanoreactor Cu2-xSe that enabled the conversion of Cu elements between Cu+ and Cu2+ for the generation of O2 and the consumption of intracellular GSH content. Furthermore, to enhance the catalytic and ferroptosis-inducing activities of the nanoreactors, the ferroptosis agonist Erastin was loaded on the ZIF-8 coating on the surface of Cu2-xSe to up-regulate the expression of NOX4 protein, increase the intracellular H2O2 content, catalyze the Cu+ to produce O2 and activate ferroptosis. In addition, the nanoreactors were simultaneously surface functionalized with PEG polymer and folic acid molecules, which ensured the in vivo blood circulation and tumor-specific uptake. In vitro and in vivo experiments demonstrated that the functionalized self-supplying nanoreactors can amplify the ability to generate O2 and consume intracellular GSH via the interconversion of Cu elements Cu+ and Cu2+, and impair the GPX4/GSH pathway and HIF-1α protein expression. At the same time, by alleviating the intracellular hypoxia environment, the expression of miR301, a gene in the secreted exosomes was decreased, which ultimately affected the phenotype polarization of TAMs and increased the content of IFN γ secreted by CD8+ T cells, which further promoted the ferroptosis induced by Erastin-loaded nanoreactors. This combined therapeutic strategy of activating the tumor immune response and ferroptosis via self-supplying nanoreactors provides a potential strategy for clinical application.
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Affiliation(s)
- Ke Li
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China
| | - Kun Xu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China
| | - Ye He
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Yulu Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China
| | - Meijun Tan
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China
| | - Yulan Mao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China
| | - Yanan Zou
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China
| | - Qian Feng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China
| | - Zhong Luo
- School of Life Science, Chongqing University, Chongqing 400044, P. R. China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing 400044, P. R. China
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Bubols GB, Arbo MD, Peruzzi CP, Cestonaro LV, Altknecht LF, Fão N, Göethel G, Nascimento SN, Paese K, Amaral MG, Bergmann CP, Pohlmann AR, Guterres SS, Garcia SC. Characterization and in vivo toxicological evaluation of multi-walled carbon nanotubes: a low-dose repeated intratracheal administration study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:36405-36421. [PMID: 36547826 DOI: 10.1007/s11356-022-24653-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 12/05/2022] [Indexed: 06/17/2023]
Abstract
This study characterized and investigated the toxicity of two multi-walled carbon nanotubes (MWCNT) NM-401 and NM-403 at 60 and 180 µg after four repeated intratracheal instillations; follow-up times were 3, 7, 30, and 90 days after the last instillation. NM-401 was needle-like, long, and thick, while NM-403 was entangled, short, and thin. Both MWCNT types induced transient pulmonary and systemic alterations in renal function and oxidative lipid damage markers in recent times. Animals showed general toxicity in the immediate times after exposures, in addition to increased pulmonary LDH release at day 3. In further times, decreased liver and kidney relative weights were noted at higher MWCNT doses. Lung histological damages included pulmonary fibrosis, for both MWCNT types, similarly to asbestos; single liver and kidney histological alterations were present. Repeated instillations led to persistent pulmonary damage at low doses, and possibly the extrapulmonary effects may be associated with the consecutive exposures.
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Affiliation(s)
- Guilherme Borges Bubols
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Anexo II, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua São Luis, 150, Anexo II, Santana, Porto Alegre, CEP: 90620-170, Brazil
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Marcelo Dutra Arbo
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Anexo II, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua São Luis, 150, Anexo II, Santana, Porto Alegre, CEP: 90620-170, Brazil
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Caroline Portela Peruzzi
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Anexo II, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua São Luis, 150, Anexo II, Santana, Porto Alegre, CEP: 90620-170, Brazil
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Larissa Vivan Cestonaro
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Anexo II, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua São Luis, 150, Anexo II, Santana, Porto Alegre, CEP: 90620-170, Brazil
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Louise Figueiredo Altknecht
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Anexo II, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua São Luis, 150, Anexo II, Santana, Porto Alegre, CEP: 90620-170, Brazil
| | - Nuryan Fão
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Anexo II, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua São Luis, 150, Anexo II, Santana, Porto Alegre, CEP: 90620-170, Brazil
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Gabriela Göethel
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Anexo II, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua São Luis, 150, Anexo II, Santana, Porto Alegre, CEP: 90620-170, Brazil
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Sabrina Nunes Nascimento
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Anexo II, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua São Luis, 150, Anexo II, Santana, Porto Alegre, CEP: 90620-170, Brazil
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Karina Paese
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
- Laboratório 405 de Nanotecnologia, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
| | - Marta Gonçalves Amaral
- Centro de Desenvolvimento Tecnológico (CDTec), Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Carlos Pérez Bergmann
- Laboratório de Materiais Cerâmicos (LACER), Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
| | - Adriana Raffin Pohlmann
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
- Instituto de Química, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
| | - Silvia Stanisçuaski Guterres
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
- Laboratório 405 de Nanotecnologia, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, Brazil
| | - Solange Cristina Garcia
- Laboratório de Toxicologia (LATOX), Faculdade de Farmácia, Anexo II, Universidade Federal Do Rio Grande Do Sul (UFRGS), Rua São Luis, 150, Anexo II, Santana, Porto Alegre, CEP: 90620-170, Brazil.
- Programa de Pós-Graduação Em Ciências Farmacêuticas (PPGCF), Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil.
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Li T, Liu Z, Hu J, Chen L, Chen T, Tang Q, Yu B, Zhao B, Mao C, Wan M. A Universal Chemotactic Targeted Delivery Strategy for Inflammatory Diseases. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2206654. [PMID: 36122571 DOI: 10.1002/adma.202206654] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/13/2022] [Indexed: 06/15/2023]
Abstract
Above 50% of deaths can be attributed to chronic inflammatory diseases; thus, the construction of drug delivery systems based on effective interaction of inflammatory factors with chemotactic nanoparticles is meaningful. Herein, a zwitterion-based artificial chemotactic nanomotor is proposed for universal precise targeting strategy in vivo, where the high level of reactive oxygen species (ROS) and inducible nitric oxide synthase (iNOS) in inflammatory sites are used as a chemoattractant. Multidimensional static models, dynamic models, and in vivo models are established to evaluate chemotactic performance. The results show that the upregulated ROS and iNOS can induce the chemotaxis of nanomotors to diseased tissues in inflammation-related disease models. Further, mesoscale hydrodynamics simulations are performed to explain the chemotactic behavior of the nanomotors. Such a chemotactic delivery strategy is expected to improve delivery efficiency and may be applicable to a variety of inflammatory diseases.
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Affiliation(s)
- Ting Li
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Zhiyong Liu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Jinglei Hu
- Kuang Yaming Honors School, Nanjing University, Nanjing, 210023, China
| | - Lin Chen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Tiantian Chen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Qianqian Tang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Bixia Yu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Bo Zhao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Mimi Wan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
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Gao L, Xuan X, Sui M, Wang J, Wang Y, Zhang H. Nanoreactor activated in situ for starvation-chemodynamic therapy of breast cancer. J Drug Target 2022; 30:767-776. [PMID: 35379059 DOI: 10.1080/1061186x.2022.2062598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The nano-drug delivery system activated by tumor microenvironment (TME) can effectively treat tumors with low-toxicity. Based on high level of reductive GSH in TME and different coordination properties of Fe ions, this project intended to prepare a GSH-activated cascade catalytic nanoreactor for breast cancer treatment using Fe3+/Fe2+ as the molecular switch. In this study, the glucose oxidase (GOx) loaded iron alginate nano hydrogel (FeAlg/GOx) was prepared by the simple one-step titration method. Results showed that FeAlg/GOx could remain stable during in vivo circulation to avoid hypoglycaemia. When it reached targeted tumor site, reductive GSH can reduce Fe3+ to Fe2+. Thereafter, FeAlg/GOx nanogel was broken and GOx was released to consume the essential nutrient glucose (Glu) to achieve tumor starvation therapy. Next, the substrate H2O2 generated by the reaction between GOx and Glu can be catalyzed by Fe2+ to produce highly cytotoxic •OH in situ, which could further kill tumor cells. The in vivo pharmacodynamics results demonstrated that compared with the control group (V/V0 = 8.36 ± 1.73), FeAlg/GOx group showed the most significant anti-tumor effect with V/V0 of 3.08 ± 1.06. In conclusion, this "inactivated" FeAlg/GOx nanogel can be converted into "activated" therapeutic substances in situ to achieve starvation-chemodynamic combined treatment for breast cancer.
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Affiliation(s)
- Linyu Gao
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xiangyang Xuan
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Mingli Sui
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Jingjing Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Yaping Wang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Huijuan Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China.,Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Henan Province.,Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Zhengzhou, China
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Stimuli-responsive hydrogels for intratumoral drug delivery. Drug Discov Today 2021; 26:2397-2405. [PMID: 33892147 DOI: 10.1016/j.drudis.2021.04.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/30/2021] [Accepted: 04/11/2021] [Indexed: 12/13/2022]
Abstract
The ability of some hydrogels to exhibit a phase transition or change their structure in response to stimuli has been extensively explored for drug depot formation and controlled drug release. Taking advantage of the unique features of the tumor microenvironment (TME) or externally applied triggers, several injectable stimuli-responsive hydrogels have been described as promising candidates for intratumoral drug delivery. In this review, we provide a brief overview of the TME and highlight the advantages of intratumoral administration, followed by a summary of the reported strategies to endow hydrogels with responsiveness to physical (temperature and light), chemical (pH and redox potential), or biological (enzyme) stimuli.
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Badanthadka M, D'Souza L, Salwa F. Strain specific response of mice to IMQ-induced psoriasis. J Basic Clin Physiol Pharmacol 2021; 32:959-968. [PMID: 33548169 DOI: 10.1515/jbcpp-2020-0112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 10/09/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Psoriasis is an autoimmune, inflammatory disease that needs a reliable animal model. Imiquimod (IMQ)-induced psoriasis is a widely used preclinical tool for psoriasis research. However, this model is sensitive to the genetic variation of mice. The present study explores mice's genetic background on disease stability and severity induced by IMQ. METHODS Three distinct strains of mice (Balb/c, C57BL/6, and Swiss albino) were divided into four groups (Vaseline, IMQ, IMQ+Clobetasol, and IMQ+Curcumin). Psoriasis area severity index (PASI) score, ear/back skin thickness, body weight alterations, and histopathological examination were employed to analyze disease severity. The spleen index studied the systemic effect. Strain effect on oxidative stress induced by IMQ was evaluated by estimating antioxidant factors, superoxide dismutase (SOD), catalase, and glutathione (GSH). RESULTS IMQ application resulted in increased PASI score, thickness, and alterations in body weight, confirming disease development in all the mice. However, the disease stability/severity between these strains was not identical. Although IMQ application caused splenomegaly, IMQ+curcumin treated C57BL/6 mice demonstrated a synergistic effect of IMQ and curcumin on the spleen resulting in increased splenomegaly. Decreased cellular enzyme activity in SOD, Catalase, and levels of GSH was observed in IMQ challenged mice, indicating the participation of the redox system in the genesis of the disease that was comparable among the strains. CONCLUSIONS These results indicate the existence of strain-dependent development of the disease. The Swiss model was found to be better in terms of disease severity and stability than other models. Further, a detailed mechanistic study might help to explain the pathological difference between these strains.
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Affiliation(s)
- Murali Badanthadka
- Department of Nitte University Centre for Animal Research and Experimentation (NUCARE), NGSM Institute of Pharmaceutical Sciences (NGSMIPS), NITTE (Deemed to be University), Paneer, Deralakatte, Mangalore, 575 018, India
| | - Lidwin D'Souza
- Department of Pharmacovigilance, Norwich Clinical Services, Bangalore, India
| | - Fathima Salwa
- Department of Pharmacology, NGSM Institute of Pharmaceutical Sciences, Mangalore, India
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Effects of Pyrroloquinoline Quinone on Lipid Metabolism and Anti-Oxidative Capacity in a High-Fat-Diet Metabolic Dysfunction-Associated Fatty Liver Disease Chick Model. Int J Mol Sci 2021; 22:ijms22031458. [PMID: 33535680 PMCID: PMC7867196 DOI: 10.3390/ijms22031458] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/21/2021] [Accepted: 01/27/2021] [Indexed: 12/13/2022] Open
Abstract
Metabolic dysfunction-associated fatty liver disease (MAFLD) and its interaction with many metabolic pathways raises global public health concerns. This study aimed to determine the therapeutic effects of Pyrroloquinoline quinone (PQQ, provided by PQQ.Na2) on MAFLD in a chick model and primary chicken hepatocytes with a focus on lipid metabolism, anti-oxidative capacity, and mitochondrial biogenesis. The MAFLD chick model was established on laying hens by feeding them a high-energy low-protein (HELP) diet. Primary hepatocytes isolated from the liver of laying hens were induced for steatosis by free fatty acids (FFA) and for oxidative stress by hydrogen peroxide (H2O2). In the MAFLD chick model, the dietary supplementation of PQQ conspicuously ameliorated the negative effects of the HELP diet on liver biological functions, suppressed the progression of MAFLD mainly through enhanced lipid metabolism and protection of liver from oxidative injury. In the steatosis and oxidative stress cell models, PQQ functions in the improvement of the lipid metabolism and hepatocytes tolerance to fatty degradation and oxidative damage by enhancing mitochondrial biogenesis and then increasing the anti-oxidative activity and anti-apoptosis capacity. At both the cellular and individual levels, PQQ was demonstrated to exert protective effects of hepatocyte and liver from fat accumulation through the improvement of mitochondrial biogenesis and maintenance of redox homeostasis. The key findings of the present study provide an in-depth knowledge on the ameliorative effects of PQQ on the progression of fatty liver and its mechanism of action, thus providing a theoretical basis for the application of PQQ, as an effective nutrient, into the prevention of MAFLD.
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Zhai M, Yan X, Liu J, Long Z, Zhao S, Li W, Liu Y, Hai C. Electromagnetic Fields Ameliorate Insulin Resistance and Hepatic Steatosis by Modulating Redox Homeostasis and SREBP-1c Expression in db/db Mice. Diabetes Metab Syndr Obes 2021; 14:1035-1042. [PMID: 33727836 PMCID: PMC7954280 DOI: 10.2147/dmso.s294020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/24/2021] [Indexed: 12/11/2022] Open
Abstract
PURPOSE The prevalence of nonalcoholic fatty liver disease (NAFLD), which has recently become known as metabolic-associated fatty liver disease (MAFLD), has risen. However, pharmacotherapies for this disease have not been approved. Electromagnetic fields (EMFs) have excellent bioeffects on multiple diseases. However, the effects of EMFs on NAFLD are unknown. This study investigated the bioeffects of EMF exposure on insulin resistance, liver redox homeostasis and hepatic steatosis in db/db mice. METHODS Animals were sacrificed after EMF exposure for 8 weeks. The fasting blood glucose and insulin levels in the serum were tested. The homeostatic model assessment of insulin resistance (HOMA-IR) was calculated by a formula. The levels of MDA, GSSG and GSH, biomarkers of redox, were assessed. The activities of CAT, SOD and GSH-Px were assessed. The body and liver weights were measured. Hepatic lipid accumulation was observed by Oil Red O staining. Hepatic CAT, GR, GSH-Px, SOD1, SOD2 and SREBP-1 expression was determined by Western blotting. RESULTS EMF exposure ameliorated insulin resistance and oxidative stress in the liver by downregulating the MDA and GSSG levels, increasing the reduced GSH levels, and promoting the GSH-Px levels in db/db mice. In addition, liver weight and triglyceride (TG) levels were reduced by EMF exposure. Simultaneously, EMF exposure improved hepatic steatosis by downregulating the protein expression of SREBP-1c. CONCLUSION The present findings suggest that EMF exposure has positive effects in the treatment of NAFLD.
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Affiliation(s)
- Mingming Zhai
- Department of Biomedical Engineering, Air Force Medical University, Xi’an, People’s Republic of China
| | - Xi Yan
- Department of Dermatology, The Second Affiliated Hospital, Air Force Medical University, Xi’an, People’s Republic of China
| | - Jiangzheng Liu
- Department of Toxicology, Shanxi Provincial Key Lab of Free Radical Biology and Medicine, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University, Xi’an, People’s Republic of China
| | - Zi Long
- Department of Toxicology, Shanxi Provincial Key Lab of Free Radical Biology and Medicine, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University, Xi’an, People’s Republic of China
| | - Siyan Zhao
- Institute of Nuclear Biological and Chemical Defence, Beijing, People’s Republic of China
| | - Wendan Li
- Institute of Nuclear Biological and Chemical Defence, Beijing, People’s Republic of China
| | - Ying Liu
- Institute of Nuclear Biological and Chemical Defence, Beijing, People’s Republic of China
- Ying Liu Institute of Nuclear Biological and Chemical Defence, No. 1, Yangfang Zhongxin North Street, Beijing, 102205, People’s Republic of China Email
| | - Chunxu Hai
- Department of Toxicology, Shanxi Provincial Key Lab of Free Radical Biology and Medicine, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University, Xi’an, People’s Republic of China
- Correspondence: Chunxu Hai Air Force Medical University (AFMU), No. 169 Changle West Road, Xi’an, Shaanxi, 710032, People’s Republic of ChinaTel +86-29-84774879 Email
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10
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Pudlarz AM, Czechowska E, S Karbownik M, Ranoszek-Soliwoda K, Tomaszewska E, Celichowski G, Grobelny J, Chabielska E, Gromotowicz-Popławska A, Szemraj J. The effect of immobilized antioxidant enzymes on the oxidative stress in UV-irradiated rat skin. Nanomedicine (Lond) 2020; 15:23-39. [PMID: 31868116 DOI: 10.2217/nnm-2019-0166] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Aim: Superoxide dismutase (SOD) and catalase (CAT) immobilized on gold nanoparticles (AuNP) and silver nanoparticles (AgNP) nanoparticles were used to reduce UV radiation-induced oxidative stress in rat skin. Materials & methods: The antioxidant influence of the enzymes was investigated on level of malondialdehyde, 8-hydroksy-2'deoksyguanozine, myeloperoxidase, total antioxidant capacity, SOD2 and CAT activity and expression, and glutathione and glutathione peroxidase activity. Results: The application of immobilized SOD and CAT on UV-irradiated skin reduced malondialdehyde and 8-hydroksy-2'deoksyguanozine levels also SOD and CAT activity and expression increased. The tested enzymes influence glutathione peroxidase activity and level of total antioxidant capacity and glutathione. Conclusion: Immobilized enzymes increased the antioxidative potential of skin following UV irradiation.
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Affiliation(s)
| | - Ewa Czechowska
- Department of Materials Technology & Chemistry, Faculty of Chemistry, University of Lodz, st. Pomorska 163, 90-236, Lodz, Poland
| | - Michał S Karbownik
- Department of Pharmacology & Toxicology, Medical University of Lodz, st. Żeligowskiego 7/9, 90-752, Lodz, Poland
| | - Katarzyna Ranoszek-Soliwoda
- Department of Materials Technology & Chemistry, Faculty of Chemistry, University of Lodz, st. Pomorska 163, 90-236, Lodz, Poland
| | - Emilia Tomaszewska
- Department of Materials Technology & Chemistry, Faculty of Chemistry, University of Lodz, st. Pomorska 163, 90-236, Lodz, Poland
| | - Grzegorz Celichowski
- Department of Materials Technology & Chemistry, Faculty of Chemistry, University of Lodz, st. Pomorska 163, 90-236, Lodz, Poland
| | - Jarosław Grobelny
- Department of Materials Technology & Chemistry, Faculty of Chemistry, University of Lodz, st. Pomorska 163, 90-236, Lodz, Poland
| | - Ewa Chabielska
- Department of Biopharmacy, Medical University of Bialystok, st. Mickiewicza 2c, 15-089, Bialystok, Poland
| | - Anna Gromotowicz-Popławska
- Department of Biopharmacy, Medical University of Bialystok, st. Mickiewicza 2c, 15-089, Bialystok, Poland
| | - Janusz Szemraj
- Department of Medical Biochemistry, Medical University of Lodz, 6/8 Mazowiecka Street, 92-215, Lodz, Poland
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11
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Yao W, Chang L, Yin W, Wang T, Yang Y, Yin P, Yang M, Ma Y, Qin Y, Ma H. One immunoassay probe makes SERS and fluorescence two readout signals: Rapid imaging and determination of intracellular glutathione levels. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 223:117303. [PMID: 31255857 DOI: 10.1016/j.saa.2019.117303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 05/14/2019] [Accepted: 06/21/2019] [Indexed: 05/16/2023]
Abstract
In this paper, one probe (TPPA-VCh) with fluorescence and Surface-enhanced Raman Scattering (SERS) two readout signals, which has high sensitivity and specificity to glutathione in both vitro and cell image applications, is designed and synthesized. Furthermore, the quenched emissions and intensified SERS signals is obtained by loading TPPA-VCh on the surfaces of gold nanoparticles.
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Affiliation(s)
- Wenhuan Yao
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Lu Chang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Weidong Yin
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Tao Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yuan Yang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Pei Yin
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Manyi Yang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yucheng Ma
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yanfang Qin
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Hengchang Ma
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
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12
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Natarajan SK, Venneti S. Glutamine Metabolism in Brain Tumors. Cancers (Basel) 2019; 11:E1628. [PMID: 31652923 PMCID: PMC6893651 DOI: 10.3390/cancers11111628] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/18/2019] [Accepted: 10/19/2019] [Indexed: 12/14/2022] Open
Abstract
Altered metabolism is a hallmark of cancer cells. Tumor cells rewire their metabolism to support their uncontrolled proliferation by taking up nutrients from the microenvironment. The amino acid glutamine is a key nutrient that fuels biosynthetic processes including ATP generation, redox homeostasis, nucleotide, protein, and lipid synthesis. Glutamine as a precursor for the neurotransmitter glutamate, and plays a critical role in the normal functioning of the brain. Brain tumors that grow in this glutamine/glutamate rich microenvironment can make synaptic connections with glutamatergic neurons and reprogram glutamine metabolism to enable their growth. In this review, we examine the functions of glutamate/glutamine in the brain and how brain tumor cells reprogram glutamine metabolism. Altered glutamine metabolism can be leveraged to develop non-invasive imaging strategies and we review these imaging modalities. Finally, we examine if targeting glutamine metabolism could serve as a therapeutic strategy in brain tumors.
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Affiliation(s)
- Siva Kumar Natarajan
- Laboratory of Brain Tumor Metabolism and Epigenetics, Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
| | - Sriram Venneti
- Laboratory of Brain Tumor Metabolism and Epigenetics, Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA.
- Department of Pathology, University of Michigan 3520E MSRB 1, 1150 West Medical Center Drive, Ann Arbor, MI 41804, USA.
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13
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Tabbì G, Magrì A, Rizzarelli E. The copper(II) binding centres of carbonic anhydrase are differently affected by reductants that ensure the redox intracellular environment. J Inorg Biochem 2019; 199:110759. [PMID: 31299377 DOI: 10.1016/j.jinorgbio.2019.110759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/18/2019] [Accepted: 07/01/2019] [Indexed: 01/25/2023]
Abstract
Copper is involved in several biological processes. The static and labile copper pools are controlled by means of a network of influx and efflux transporters, storage proteins, chaperones, transcription factors and small molecules as glutathione (GSH), which contributes to the cell reducing environment. To follow the fate of intracellular copper labile pool, a variant of human apocarbonic anhydrase has been proposed as fluorescent probe to monitor cytoplasmic Cu2+. Aware that in this cellular compartment copper ion is present as Cu+, electron spin resonance technique (ESR) was used to ascertain whether (bovine or human) carbonic anhydrase (CA) was able to accommodate Cu+ in the same sites occupied by Cu2+, in the presence of naturally occurring reducing agents such as ascorbate and GSH. Our ESR results on Cu2+ complexes with CA allow for a complete characterization of the two metal binding sites of the protein in solution. The use of the reported affinity constants of zinc in the catalytic site and of Cu2+ in the peripheral and catalytic site, allow us to obtain the speciation of copper species mimicking the spectroscopic study conditions. The different Cu2+ coordination features in the catalytic and the peripheral (the N-terminus cleft mouth) binding sites influence the chemical reduction effect of the two main naturally occurring reductants. Ascorbate reversibly reduces the Cu2+ complex with CA, while glutathione irreversibly induces the formation of Cu2+ complex with its oxidized form (GSSG). Our results questioned the use of CA as intracellular Cu2+ sensor. Furthermore, translating these findings to intracellular environment, the conversion of GSH in GSSG can significantly alter the metallostasis.
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Affiliation(s)
- Giovanni Tabbì
- Institute of Crystallography, National Council of Research, CNR, S.S. Catania, via P. Gaifami 18, Catania, Italy
| | - Antonio Magrì
- Institute of Crystallography, National Council of Research, CNR, S.S. Catania, via P. Gaifami 18, Catania, Italy
| | - Enrico Rizzarelli
- Institute of Crystallography, National Council of Research, CNR, S.S. Catania, via P. Gaifami 18, Catania, Italy; Department of Chemical Sciences, University of Catania, Viale A. Doria 6, Catania, Italy; Consorzio Interuniversitario per la Ricerca dei Metalli nei Sistemi Biologici, Via Ulpiani 27, Bari, Italy.
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14
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Sullivan MR, Vander Heiden MG. Determinants of nutrient limitation in cancer. Crit Rev Biochem Mol Biol 2019; 54:193-207. [PMID: 31162937 PMCID: PMC6715536 DOI: 10.1080/10409238.2019.1611733] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 04/22/2019] [Accepted: 04/23/2019] [Indexed: 12/12/2022]
Abstract
Proliferation requires that cells accumulate sufficient biomass to grow and divide. Cancer cells within tumors must acquire a variety of nutrients, and tumor growth slows or stops if necessary metabolites are not obtained in sufficient quantities. Importantly, the metabolic demands of cancer cells can be different from those of untransformed cells, and nutrient accessibility in tumors is different than in many normal tissues. Thus, cancer cell survival and proliferation may be limited by different metabolic factors than those that are necessary to maintain noncancerous cells. Understanding the variables that dictate which nutrients are critical to sustain tumor growth may identify vulnerabilities that could be used to treat cancer. This review examines the various cell-autonomous, local, and systemic factors that determine which nutrients are limiting for tumor growth.
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Affiliation(s)
- Mark R Sullivan
- Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology , Cambridge , MA , USA
| | - Matthew G Vander Heiden
- Koch Institute for Integrative Cancer Research and Department of Biology, Massachusetts Institute of Technology , Cambridge , MA , USA
- Dana-Farber Cancer Institute , Boston , MA , USA
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15
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Zhou DR, Eid R, Miller KA, Boucher E, Mandato CA, Greenwood MT. Intracellular second messengers mediate stress inducible hormesis and Programmed Cell Death: A review. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:773-792. [DOI: 10.1016/j.bbamcr.2019.01.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/25/2019] [Accepted: 01/29/2019] [Indexed: 12/11/2022]
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16
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Zhou DR, Eid R, Boucher E, Miller KA, Mandato CA, Greenwood MT. Stress is an agonist for the induction of programmed cell death: A review. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:699-712. [DOI: 10.1016/j.bbamcr.2018.12.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 09/17/2018] [Accepted: 12/01/2018] [Indexed: 02/07/2023]
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17
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Wei Y, Wang R, Teng J. Inhibition of Calcium/Calmodulin-Dependent Protein Kinase IIα Suppresses Oxidative Stress in Cerebral Ischemic Rats Through Targeting Glucose 6-Phosphate Dehydrogenase. Neurochem Res 2019; 44:1613-1620. [PMID: 30919283 DOI: 10.1007/s11064-019-02785-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/19/2019] [Accepted: 03/21/2019] [Indexed: 02/07/2023]
Abstract
Ischemic stroke is a leading cause of mortality and morbidity worldwide, and oxidative stress plays a significant role in the ischemia stage and reperfusion stage. Previous studies have indicated that both calcium/calmodulin-dependent protein kinase II (CaMKII) and glucose 6-phosphate dehydrogenase (G6PD) are involved in the oxidative stress. Thus, the aim of this study was to investigate the roles of CaMKIIα, an important isoform of CaMKII, and G6PD in a rat model of middle cerebral artery occlusion (MCAO). Intracerebroventricular injection of small interfering ribonucleic acid (siRNA) for CaMKIIα was performed at 48 h pre-MCAO surgery. Immunofluorescence Staining and western blot were performed to detect the expression of p-CaMKIIα and G6PD in the cortices. 2, 3, 5-Triphenyltetrazolium chloride (TTC) staining was performed to investigate the infarct volume. In addition, neurological deficit, reactive oxygen species (ROS), ratio of reduced-to-oxidized glutathione (GSH/GSSG) and ratio of reduced-to-oxidized oxidized nicotinamide adenine dinucleotide phosphate (NADPH/NADP+) were assessed. The results indicated that both p-CaMKIIα and G6PD were widely located in the neurons and astrocytes, and their expression was gradually increased in the cortices after MCAO, which was accompanied by increased level of ROS and decreased levels of GSH/GSSG and NADPH/NADP+. However, after treatment with siRNA for CaMKIIα, p-CaMKIIα expression was decreased and G6PD expression was increased. Moreover, inhibition of CaMKIIα improved the neurological deficit, reduced the infarct volume, decreased the level of ROS and increased the levels of GSH/GSSG and NADPH/NADP+. The results suggested that CaMKIIα inhibition exerted neuroprotective effects through regulating G6PD expression, which provides a new target for prevention and treatment of stroke.
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Affiliation(s)
- Yamin Wei
- Neurological Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450000, Henan, China
| | - Rui Wang
- Neurological Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450000, Henan, China
| | - Junfang Teng
- Neurological Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, No. 1 Eastern Jianshe Road, Zhengzhou, 450000, Henan, China.
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18
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Boysen G, Jamshidi-Parsian A, Davis MA, Siegel ER, Simecka CM, Kore RA, Dings RPM, Griffin RJ. Glutaminase inhibitor CB-839 increases radiation sensitivity of lung tumor cells and human lung tumor xenografts in mice. Int J Radiat Biol 2019; 95:436-442. [PMID: 30557074 DOI: 10.1080/09553002.2018.1558299] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
PURPOSE The purpose of this study was to translate our in vitro therapy approach to an in vivo model. Increased glutamine uptake is known to drive cancer cell proliferation, making tumor cells glutamine-dependent. Studying lymph-node aspirates containing malignant lung tumor cells showed a strong correlation between glutamine consumption and glutathione (GSH) excretion. Subsequent experiments with A549 and H460 lung tumor cell lines provided additional evidence for glutamine's role in driving synthesis and excretion of GSH. Using stable-isotope-labeled glutamine as a tracer metabolite, we demonstrated that the glutamate group in GSH is directly derived from glutamine, linking glutamine utilization intimately to GSH syntheses. MATERIALS AND METHODS To understand the possible mechanistic link between glutamine consumption and GSH excretion, we studied GSH metabolism in more detail. Inhibition of glutaminase (GLS) with BPTES, a GLS-specific inhibitor, effectively abolished GSH synthesis and excretion. Since our previous work, several novel GLS inhibitors became available and we report herein effects of CB-839 in A427, H460 and A549 lung tumor cells and human lungtumor xenografts in mice. RESULTS Inhibition of GLS markedly reduced cell viability, producing ED50 values for inhibition of colony formation of 9, 27 and 217 nM in A427, A549 and H460, respectively. Inhibition of GLS is accompanied by ∼30% increased response to radiation, suggesting an important role of glutamine-derived GSH in protecting tumor cells against radiation-induced injury. In subsequent mouse xenografts, short-term CB-839 treatments reduced serum GSH by >50% and increased response to radiotherapy of H460-derived tumor xenografts by 30%. CONCLUSION The results support the proposed mechanistic link between GLS activity and GSH synthesis and suggest that GLS inhibitors are effective radiosensitizers.
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Affiliation(s)
- Gunnar Boysen
- a Department of Environment and Occupational Health , University of Arkansas for Medical Sciences , Little Rock , AR , USA.,b The Winthrop P. Rockefeller Cancer Institute , University of Arkansas for Medical Sciences , Little Rock , AR , USA
| | - Azemat Jamshidi-Parsian
- c Department of Radiation Oncology , University of Arkansas for Medical Sciences , Little Rock , AR , USA
| | - Mary A Davis
- a Department of Environment and Occupational Health , University of Arkansas for Medical Sciences , Little Rock , AR , USA
| | - Eric R Siegel
- b The Winthrop P. Rockefeller Cancer Institute , University of Arkansas for Medical Sciences , Little Rock , AR , USA.,d Department of Biostatistics , University of Arkansas for Medical Sciences , Little Rock , AR , USA
| | - Christine M Simecka
- e Division of Laboratory Animal Science , University of Arkansas for Medical Sciences , Little Rock , AR , USA
| | - Rajshekhar A Kore
- b The Winthrop P. Rockefeller Cancer Institute , University of Arkansas for Medical Sciences , Little Rock , AR , USA.,c Department of Radiation Oncology , University of Arkansas for Medical Sciences , Little Rock , AR , USA
| | - Ruud P M Dings
- b The Winthrop P. Rockefeller Cancer Institute , University of Arkansas for Medical Sciences , Little Rock , AR , USA.,c Department of Radiation Oncology , University of Arkansas for Medical Sciences , Little Rock , AR , USA
| | - Robert J Griffin
- b The Winthrop P. Rockefeller Cancer Institute , University of Arkansas for Medical Sciences , Little Rock , AR , USA.,c Department of Radiation Oncology , University of Arkansas for Medical Sciences , Little Rock , AR , USA
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19
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Naletova I, Satriano C, Curci A, Margiotta N, Natile G, Arena G, La Mendola D, Nicoletti VG, Rizzarelli E. Cytotoxic phenanthroline derivatives alter metallostasis and redox homeostasis in neuroblastoma cells. Oncotarget 2018; 9:36289-36316. [PMID: 30555630 PMCID: PMC6284747 DOI: 10.18632/oncotarget.26346] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 11/01/2018] [Indexed: 02/06/2023] Open
Abstract
Copper homeostasis is generally investigated focusing on a single component of the metallostasis network. Here we address several of the factors controlling the metallostasis for neuroblastoma cells (SH-SY5Y) upon treatment with 2,9-dimethyl-1,10-phenanthroline-5,6-dione (phendione) and 2,9-dimethyl-1,10-phenanthroline (cuproindione). These compounds bind and transport copper inside cells, exert their cytotoxic activity through the induction of oxidative stress, causing apoptosis and alteration of the cellular redox and copper homeostasis network. The intracellular pathway ensured by copper transporters (Ctr1, ATP7A), chaperones (CCS, ATOX, COX 17, Sco1, Sco2), small molecules (GSH) and transcription factors (p53) is scrutinised.
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Affiliation(s)
- Irina Naletova
- Department of Chemical Sciences, University of Catania, Catania, Italy
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (CIRCMSB), Bari, Italy
| | - Cristina Satriano
- Department of Chemical Sciences, University of Catania, Catania, Italy
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (CIRCMSB), Bari, Italy
| | - Alessandra Curci
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (CIRCMSB), Bari, Italy
- Department of Chemistry, University of Bari ‘Aldo Moro’, Bari, Italy
| | - Nicola Margiotta
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (CIRCMSB), Bari, Italy
- Department of Chemistry, University of Bari ‘Aldo Moro’, Bari, Italy
| | - Giovanni Natile
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (CIRCMSB), Bari, Italy
- Department of Chemistry, University of Bari ‘Aldo Moro’, Bari, Italy
| | - Giuseppe Arena
- Department of Chemical Sciences, University of Catania, Catania, Italy
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (CIRCMSB), Bari, Italy
| | - Diego La Mendola
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (CIRCMSB), Bari, Italy
- Department of Pharmacy, University of Pisa, Pisa, Italy
| | - Vincenzo Giuseppe Nicoletti
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (CIRCMSB), Bari, Italy
- Section of Medical Biochemistry, Department of Biomedical and Biotechnological Sciences (BIOMETEC), University of Catania, Catania, Italy
| | - Enrico Rizzarelli
- Department of Chemical Sciences, University of Catania, Catania, Italy
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (CIRCMSB), Bari, Italy
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20
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Gong P, Li K, Li Y, Liu D, Zhao L, Jing Y. HDAC and Ku70 axis- an effective target for apoptosis induction by a new 2-cyano-3-oxo-1,9-dien glycyrrhetinic acid analogue. Cell Death Dis 2018; 9:623. [PMID: 29795376 PMCID: PMC5967349 DOI: 10.1038/s41419-018-0602-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/25/2018] [Accepted: 04/16/2018] [Indexed: 02/06/2023]
Abstract
Methyl 2-cyano-3,12-dioxo-18β-olean-1,9(11)-dien-30-oate (CDODO-Me, 10d) derived from glycyrrhetinic acid and methyl-2-cyano-3,12-dioxooleana-1,9-dien-28-oic acid (CDDO-Me) derived from oleanoic acid are potent apoptosis inducers developed to clinical trials. Both compounds have high affinity for reduced glutathione (GSH), which needs to be overcome to improve their target selectivity. We generated a new 10d analogue methyl 2-cyano-3-oxo-18β-olean-1,9(11), 12-trien-30-oate (COOTO, 10e), which retains high apoptosis inducing ability, while displaying decreased affinity for GSH, and explored the acting targets. We found that it induces Noxa level, reduces c-Flip level and causes Bax/Bak activation. Silencing of either Noxa or Bak significantly attenuated apoptosis induction of 10e. We linked these events due to targeting HDAC3/HDAC6 and Ku70 axis. 10e treatment reduced the levels of HDAC3 and HDAC6 with increased DNA damage/repair marker gamma-H2AX (γ-H2AX) and acetylated Ku70. c-Flip dissociates from acetylated Ku70 undergoing degradation, while Bax dissociates from acetylated Ku70 undergoing activation. Silencing of either HDAC3 or HDAC6 enhanced 10e-induced apoptosis. We reveal a new action cascade of this category of compounds that involves targeting of HADC3/6 proteins and Ku70 acetylation.
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Affiliation(s)
- Ping Gong
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Kun Li
- Department of Medicinal Chemistry, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Ying Li
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Dan Liu
- Department of Medicinal Chemistry, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.,Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Linxiang Zhao
- Department of Medicinal Chemistry, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.,Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, PR China
| | - Yongkui Jing
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, 110016, PR China. .,Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, PR China.
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21
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Sappington D, Helms S, Siegel E, Penney RB, Jeffus S, Bartter T, Bartter T, Boysen G. Diagnosis of lung tumor types based on metabolomic profiles in lymph node aspirates. Cancer Treat Res Commun 2017; 14:1-6. [PMID: 30104001 DOI: 10.1016/j.ctarc.2017.08.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 08/10/2017] [Accepted: 08/17/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND Treatment of lung cancer is evolving from the use of cytotoxic drugs to drugs that interrupt pathways specific to a malignancy. The field of metabolomics has promise with respect to identification of tumor-specific processes and therapeutic targets, but to date has yielded inconsistent data in patients with lung cancer. Lymph nodes are often aspirated in the process of evaluating lung cancer, as malignant cells in lymph nodes are used for diagnosis and staging. We hypothesized that fluids from lymph node aspirates contains tumor-specific metabolites and are a suitable source for defining the metabolomic phenotype of lung cancers. PATIENTS AND MATERIALS Metabolic profiles were generated from nodal aspirates of ten patients with adenocarcinoma, ten with squamous cell carcinoma, and ten with non-malignant conditions using time-of-flight mass spectrometry. In addition, concentrations of selected metabolites participating in the kynurenine and glutathione pathways were measured in a second set of aspirates using tandem mass spectrometry. RESULTS A list of consensus features that separated these three groups was identified. Two of the consensus features were tentatively identified as kynurenine and as oxidized glutathione. It was shown that metabolite concentrations in these pathways are different for patients with and without malignancy. CONCLUSION Together the data suggest that metabolomic analysis of lymph node aspirates can identify tumor-specific differences in cancer metabolism and reveal novel therapeutic targets. This proof-of-concept study demonstrates the validity to complement and refine diagnosis of lung cancer based on metabolic signature in lymph node aspirates. MICRO ABSTRACT Treatment of lung cancer is evolving from the use of cytotoxic drugs to drugs that interrupt metabolic pathways specific to a malignancy. We report here in that the metabolic phenotype of lung cancer can be determined in lymph node aspirates harboring malignant tumor cells. Knowledge about metabolic activity of malignant tumor cells may aide to personalize therapy.
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Affiliation(s)
- Daniel Sappington
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, United States
| | - Scott Helms
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, United States
| | - Eric Siegel
- Department of Biostatistics, University of Arkansas for Medical Sciences, United States
| | - Rosalind B Penney
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, United States
| | - Susanne Jeffus
- Department of Pathology, University of Arkansas for Medical Sciences, United States; The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, United States
| | - Teka Bartter
- Department of Medicine, University of Arkansas for Medical Sciences, United States; The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, United States
| | - Thaddeus Bartter
- Department of Medicine, University of Arkansas for Medical Sciences, United States; The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, United States
| | - Gunnar Boysen
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, United States; The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, United States.
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